CN115592587A - Surface engraving method of engraving fixture and precision thin-wall lens barrel - Google Patents

Abstract

The application belongs to the technical field of engraving fixture manufacturing, and particularly relates to a surface engraving method for an fixture and a precise thin-wall lens cone, which comprises a main holder and an auxiliary holder, wherein one end of the main holder is provided with a clamping part with a circular cross section, the other end of the main holder is provided with a clamping seat, the auxiliary holder is a cylinder with two open ends, the auxiliary holder is made of hard rubber, the inner diameter of the auxiliary holder is larger than the outer diameter of the clamping part, the main holder is provided with a locking device for locking the auxiliary holder, and the problem that the common engraving fixture cannot clamp the precise thin-wall lens cone for engraving operation is solved.

Description

Surface engraving method of engraving fixture and precision thin-wall lens barrel

technical field

The application belongs to the technical field of engraving jig manufacturing, and specifically relates to a surface engraving method for a jig and a precision thin-walled lens barrel.

Background technique

The use of general engraving fixtures requires that the clamped object (product) has a certain hardness, and the object cannot be damaged after the object is clamped, and the object can be fixed when engraving, so as to meet the requirements of the engraving fixture . However, the surface of products with low hardness also needs to be engraved, such as the surface of the precision thin-walled lens tube. When ordinary clamps are used to clamp the precision thin-walled lens tube, the precision thin-walled lens tube is very thin, so it is easy to be flattened by the clamp. As a result, the precision thin-wall lens barrel is destroyed. Therefore, due to technical limitations, even if the surface of the precision thin-wall lens barrel needs to be engraved, it has not been carried out. The reason is that there is no fixture suitable for the precision thin-wall lens barrel.

Contents of the invention

The purpose of this application is to address the shortcomings of the prior art, and to design a fixture and a precision thin-walled mirror by using a cylindrical rigid clamping part and a cylindrical secondary clamp made of hard rubber to cooperate with each other. The surface engraving method of the barrel can fix the precision thin-walled lens barrel without damaging the precision thin-walled lens barrel for engraving by the engraving machine, which solves the problem that ordinary engraving fixtures cannot clamp the precision thin-walled lens barrel for engraving operations.

In order to achieve the above object, the application provides the following technical solutions:

A clamp, comprising a main gripper and a secondary gripper, one end of the main gripper is provided with a clamping portion with a circular cross section, the other end is a clamping seat, and the secondary gripper is two A cylindrical shape with an open end, the auxiliary holder is made of hard rubber, the inner diameter of the auxiliary holder is larger than the outer diameter of the clamping part, and the main holder is provided with a lock Describe the locking device of the auxiliary holder.

Preferably, the main holder is made of T7 steel.

Preferably, the diameter of the clamping seat is larger than the diameter of the auxiliary clamper.

Preferably, the locking device is arranged on the clamping seat.

Preferably, the locking device includes a first threaded hole, the first threaded hole is provided on the clamping seat away from the clamping part, and the diameter of the first threaded hole is smaller than that of the secondary clamping The thickness of the device, the axis of the first threaded hole is parallel to the axis of the clamping part, and the distance between the axis of the first threaded hole and the axis of the clamping part is within the between inner and outer diameters.

Preferably, the locking device further includes a first engaging plate and a second threaded hole, the second threaded hole axially passes through the main clamp and the clamping portion, and the first engaging plate is provided with There is a third threaded hole matched with the second threaded hole, and the shape and size of the first engaging plate are larger than the shape and size of the outer cross section of the auxiliary holder.

Preferably, the locking device includes a second locking plate, a blind hole is coaxially provided on the end of the clamping portion facing away from the clamping seat, and a blind hole is provided on the second locking plate that is in line with the blind hole. The matching positioning shaft, the second engaging plate is provided with a fourth threaded hole, the distance from the axis of the fourth threaded hole to the axis of the clamping part is smaller than the diameter of the clamping part, and the clamping part A fifth threaded hole matched with the fourth threaded hole is provided on the upper part.

Preferably, the length of the clamping part is greater than the length of the auxiliary clamp, and the locking device includes a third locking plate, a protrusion, and a locking bolt, and the third locking plate is provided with the A through hole for the clamping part, one side of the third engaging plate is provided with the protrusions evenly distributed around the through hole, the protrusions are penetrated with locking bolts, and the locking bolts are The axis is perpendicular to the axis of the through hole.

A surface engraving method for a precision thin-walled lens barrel, comprising the steps of:

1) Set the precision thin-wall lens barrel on the clamping part;

2) Set the auxiliary holder on the precision thin-walled lens barrel in step 1;

3) Lock the clamping part, the sub-holder and the end of the precision thin-walled lens barrel together in step 2 through the locking device;

4) Fix the whole body locked together in step 3 on the engraving machine, import the knife path program into the engraving machine, so that the knife of the engraving machine can carve the outer surface of the whole body combined in step 3;

5) Adjust the length of the engraved knife so that the depth of engraving on the overall outer surface combined in step 3 is H, the thickness of the auxiliary holder<H<the thickness of the auxiliary holder and the thickness between the auxiliary holder and the clip The sum of the thickness of the product between the holding parts;

6) Start the engraving machine.

Compared with prior art, the beneficial effect of the present application is:

1. This application adopts the way that the cylindrical rigid clamping part and the cylindrical secondary clamp made of hard rubber cooperate with each other, and designs a surface engraving method for the clamp and the precision thin-walled lens barrel, which can The precision thin-wall lens barrel is fixed for engraving by the engraving machine without damaging the precision thin-wall lens barrel, which solves the problem that ordinary engraving fixtures cannot clamp the precision thin-wall lens barrel for engraving operations.

2. The diameter of the clamping seat in this application is larger than the diameter of the auxiliary holder, so that the auxiliary holder can limit the axial position of the precision thin-walled lens barrel in the clamping part.

3. In this application, the screw penetrates the first threaded hole and then screwed into the end face of the auxiliary holder, which can limit the relative positional relationship between the auxiliary holder and the main holder, thereby realizing the clamping of the precision thin-walled lens barrel the goal of.

4. This application fixes the main holder and the auxiliary holder by friction between the locking bolt and the circumferential surface of the clamping part; and the length of the clamping part is set to be greater than the length of the auxiliary holder , so that the range of use of the fixture itself is expanded, and the distance between the third engaging plate and the clamping seat can be adjusted according to the length of the precision thin-walled lens barrel.

Description of drawings

Fig. 1 is a schematic view of the structure of the first embodiment of the present application after the precision thin-wall lens barrel is clamped;

Figure 2 is an exploded view of Figure 1;

Fig. 3 is the explosion diagram of the second embodiment in the present application;

Fig. 4 is the explosion diagram of the third embodiment in the present application;

Fig. 5 is an exploded view of a fourth embodiment of the present application.

Among them: 1. Clamping part; 2. Clamping seat; 3. Sub-clamper; 4. First threaded hole; 5. Clamping plate; 6. Second threaded hole; 7. Third threaded hole; 8. The first Two clamping plates; 9, blind holes; 10, positioning shafts; 11, fourth threaded holes; 12, fifth threaded holes; 13, third clamping plates; 14, protrusions; 15, locking bolts; 16, through holes ; 17. Precision thin-walled lens barrel.

detailed description

Referring to Figures 1-4, a clamp includes a main holder and a secondary holder 3, one end of the main holder is provided with a clamping part 1 with a circular cross section, and the other end is a clamping seat 2 , the auxiliary holder 3 is cylindrical with two ends open, the auxiliary holder 3 is made of hard rubber, and the inner diameter of the auxiliary holder 3 is larger than the outer diameter of the clamping part 1 , the main gripper is provided with a locking device for locking the auxiliary gripper 3 .

In this embodiment, when in use, the diameter of the clamping portion 1 is made to be equal to the inner diameter of the precision thin-walled lens barrel 17, and the inner diameter of the auxiliary holder 3 is made to be equal to the outer diameter of the precision thin-walled lens barrel 17, and then the precision thin-walled mirror The barrel 17 is sleeved on the clamping part 1, and then the auxiliary holder 3 is sleeved on the precision thin-walled lens barrel 17 that has been sleeved on the clamping part 1, and finally the auxiliary holder 3 is connected to the main lens with a locking device. The holders are relatively fixed. Since the auxiliary holder 3 is made of hard rubber, the knife of the engraving machine can directly engrave the surface of the auxiliary holder 3, and then import the tool path program into the engraving machine, so that The knife of the engraving machine can engrave the overall outer surface combined in the clamping part 1, the auxiliary holder 3, and the precision thin-walled lens barrel 17; then adjust the length of the engraved knife so that the clamping part 1, the auxiliary holder 3. The depth of engraving on the overall outer surface of the precision thin-walled lens barrel 17 is H, and the thickness of the auxiliary holder 3<H<The thickness of the auxiliary holder 3 is the same as that between the auxiliary holder 3 and the clamping part 1. The sum of the thicknesses of the precision thin-wall lens barrel 17 between; finally start the engraving machine engraving, after that, the engraving of the same type of precision thin-wall lens barrel 17 can be clamped by this fixture, because the same type of precision thin-wall lens barrel 17 (precision thin-wall mirror The size of the cylinder 17 is the same as the pattern to be engraved); that is to say, the sub-holder 3 engraved by the engraving machine can still be reused as long as the sub-holder 3 is continuously divided into two sections in the axial direction .

As a preferred manner, the main holder is made of T7 steel.

Preferably, the diameter of the holding seat 2 is larger than the diameter of the auxiliary holder 3, so that the auxiliary holder 3 can limit the axial position of the precision thin-walled lens barrel 17 on the holding part 1 .

Preferably, the locking device is arranged on the clamping seat 2 , so that the setting of the locking device will not affect the sheathing of the precision thin-wall lens barrel 17 on the clamping part 1 .

Preferably, as shown in Figures 1 and 2, the locking device includes a first threaded hole 4, and the first threaded hole 4 is provided on the clamping seat 2 away from the clamping part 1, so that The diameter of the first threaded hole 4 is smaller than the thickness of the secondary holder 3, the axis of the first threaded hole 4 is parallel to the axis of the clamping part 1, and the axis of the first threaded hole 4 is to the The distance between the axes of the clamping parts 1 is between the inner diameter and the outer diameter of the auxiliary clamper 3 . After being set up in this way, when in use, screw through the first threaded hole 4 and then screw into the end face of the auxiliary holder 3, thus limiting the relative positional relationship between the auxiliary holder 3 and the holder. Thereby the purpose of clamping the precision thin-walled lens barrel 17 is achieved.

Preferably, as shown in FIG. 3 , the locking device further includes a first engaging plate 5 and a second threaded hole 6 , and the second threaded hole 6 axially passes through the main clamp and the clamping portion 1. The first engaging plate 5 is provided with a third threaded hole 7 matched with the second threaded hole 6, and the shape and size of the first engaging plate 5 are larger than the outer cross section of the auxiliary holder 3 shape and size. After setting in this way, the axial position of the precision thin-walled lens barrel 17 on the clamping part 1 can be limited by the clamping seat 2 and the first engaging plate 5. When in use, a bolt assembly passes through the second threaded hole 6 and the The third threaded hole 7 can form an integral whole of the first clamping plate 5, the precision thin-walled lens barrel 17, the secondary holder 3, and the main holder (made up of the clamping part 1 and the clamping seat 2), so that it can be clamped Holding the precision thin-wall lens barrel 17 does not restrict the precision thin-wall lens barrel 17 from being engraved by the engraving machine.

Preferably, as shown in Fig. 4, the locking device includes a second engaging plate 8, and the end of the clamping part 1 facing away from the clamping seat 2 is coaxially provided with a blind hole 9, and the second A positioning shaft 10 cooperating with the blind hole 8 is provided on the engaging plate 8, a fourth threaded hole 11 is provided on the second engaging plate 8, and the axis of the fourth threaded hole 11 reaches the clamping portion 1 The distance between the axes is smaller than the diameter of the clamping portion 1 , and the clamping portion 1 is provided with a fifth threaded hole 12 matched with the fourth threaded hole 11 . In this way, through the setting of the blind hole 9 and the positioning shaft 10, it is convenient to make the second engaging plate 8 coaxial with the clamping part 1, so that the whole clamp is beautiful, and at the same time, it is convenient to place the clamp holding the precision thin-walled lens barrel 17 on the engraving machine. Sculpture. Wherein, after the bolts are sequentially screwed into the fourth threaded hole 11 and the fifth threaded hole 12 , the clamp holding the precision thin-wall lens barrel 17 can be fixed and locked, thereby playing the role of clamping the precision thin-wall lens barrel 17 .

Preferably, as shown in FIG. 5 , the length of the clamping part 1 is greater than the length of the auxiliary clamp 3, and the locking device includes a third engaging plate 13, a protrusion 14, and a locking bolt 15, so that The third engaging plate 13 is provided with a through hole 16 matched with the clamping portion 1, and one side of the third engaging plate 13 is provided with the protrusions 14 evenly distributed around the through hole 16, so that A locking bolt 15 penetrates through the protrusion 14 , and the axis of the locking bolt 15 is perpendicular to the axis of the through hole 16 . In this embodiment, the contact between the locking bolt 15 and the circumferential surface of the clamping part 1 generates friction to fix the main clamp and the auxiliary clamp 3; the length of the clamping part 1 is longer than that of the secondary clamp The setting of the length of the device 3 expands the range of use of the clamp itself, and the distance between the third engaging plate 13 and the clamping seat 2 can be adjusted according to the length of the precision thin-walled lens barrel 17 .

A surface engraving method for a precision thin-walled lens barrel, comprising the steps of:

1) Set the precision thin-wall lens barrel 17 on the clamping part 1;

2) set the secondary holder 3 on the precision thin-walled lens barrel 17 in step 1;

3) Lock the clamping part 1, the auxiliary clamp 3 and the ends of the precision thin-walled lens barrel 17 in step 2 together through the locking device;

4) Fix the whole body locked together in step 3 on the engraving machine, import the knife path program into the engraving machine, so that the knife of the engraving machine can carve the outer surface of the whole body combined in step 3;

5) Adjust the length of the engraved knife so that the depth of engraving on the overall outer surface combined in step 3 is H, the thickness of the auxiliary holder 3<H<the thickness of the auxiliary holder 3 and the thickness of the auxiliary holder 3 3 and the thickness of the precision thin-wall lens barrel 17 between the clamping part 1; after such setting, in the engraving process, the sub-holder 3 and the precision thin-wall lens barrel 17 are all engraved, and this setting method can make the precision as much as possible The clamped area of the thin-walled lens barrel 17 is maximized, thereby avoiding that the clamped area of the precision thin-walled lens barrel 17 is too small to generate local pressure, thereby damaging the precision thin-walled lens barrel 17 .

6) Start the engraving machine.

Claims (9)

1. A fixture comprising a main gripper and a secondary gripper (3), characterized in that one end of the main gripper is provided with a clamping portion (1) with a circular cross section, and the other end is Clamping seat (2), the auxiliary holder (3) is cylindrical with two ends open, the auxiliary holder (3) is made of hard rubber, the auxiliary holder (3) The inner diameter is larger than the outer diameter of the clamping part (1), and the main clamper is provided with a locking device for locking the secondary clamper (3). 2. A clamp according to claim 1, wherein the main clamp is made of T7 steel. 3. A clamp according to claim 1, characterized in that, the diameter of the clamping seat (2) is larger than the diameter of the auxiliary clamp (3). 4. A clamp according to claim 3, characterized in that the locking device is arranged on the clamping seat (2). 5. A clamp according to claim 4, characterized in that, the locking device comprises a first threaded hole (4), and the clamping seat (2) is far away from the clamping part (1) Set the first threaded hole (4), the diameter of the first threaded hole (4) is smaller than the thickness of the secondary holder (3), the axis of the first threaded hole (4) is parallel to the The axis of the clamping part (1), the distance between the axis of the first threaded (4) hole and the axis of the clamping part (1) is within the inner diameter and outer diameter of the secondary clamp (3) between diameters. 6. A clamp according to claim 5, characterized in that, the locking device further comprises a first engaging plate (5), a second threaded hole (6), and the second threaded hole (6) shaft penetrating through the main holder and the clamping part (1), the first engaging plate (5) is provided with a third threaded hole (7) matched with the second threaded hole (6), The shape and size of the first engaging plate (5) are larger than the shape and size of the outer cross section of the auxiliary holder (3). 7. A clamp according to claim 5, characterized in that the locking device comprises a second engaging plate (8), and the clamping part (1) faces away from the clamping seat (2) A blind hole (9) is coaxially provided at one end of the second engaging plate (8), and a positioning shaft (10) cooperating with the blind hole (8) is provided on the second engaging plate (8). A fourth threaded hole (11) is provided, the distance from the axis of the fourth threaded hole (11) to the axis of the clamping part (1) is smaller than the diameter of the clamping part (1), and the clamping The part (1) is provided with a fifth threaded hole (12) matched with the fourth threaded hole (11). 8. A clamp according to claim 3, characterized in that, the length of the clamping part (1) is greater than the length of the auxiliary clamp (3), and the locking device comprises a third engaging plate (13), protrusions (14), locking bolts (15), the third engaging plate (13) is provided with a through hole (16) matched with the clamping part (1), the third One side of the engaging plate (13) is provided with the protrusions (14) evenly distributed around the through hole (16), and the protrusions (14) are penetrated with locking bolts (15), and the lock The axis of the bolt (15) is perpendicular to the axis of the through hole (16). 9. A surface engraving method for a precision thin-walled lens barrel, comprising the steps of: 1) Set the precision thin-wall lens barrel (17) on the clamping part (1) described in claim 1; 2) Set the auxiliary holder (3) in claim 1 on the precision thin-walled lens barrel (17) in step 1; 3) Lock the clamping part (1), the auxiliary clamp (3) and the ends of the precision thin-walled lens barrel (17) in step 2 together through the locking device; 4) Fix the whole body locked together in step 3 on the engraving machine, import the knife path program into the engraving machine, so that the knife of the engraving machine can carve the outer surface of the whole body combined in step 3; 5) Adjust the length of the engraving knife so that the depth of engraving on the overall outer surface combined in step 3 is H, the thickness of the secondary holder (3)<H<the thickness of the secondary holder (3) and the thickness of the secondary holder (3) The sum of the thicknesses of the precision thin-wall lens barrel (17) between the auxiliary holder (3) and the clamping part (1); 6) Start the engraving machine.

Images