Objective lens base supporting and clamping device

Abstract

The utility model discloses an objective lens base supporting and clamping device which comprises a positioning plate for positioning an objective lens base, and the positioning plate is provided with a plurality of profiling grooves for accommodating the objective lens base and profiling the objective lens base. A horizontal positioning module for limiting the objective lens base to move in the horizontal direction and a Z-axis positioning module for limiting the objective lens base to move in the Z direction are arranged on the periphery of each profiling groove; and the Z-axis positioning module comprises a first Z-axis positioning module rigidly pressed on the objective lens base and a second Z-axis positioning module elastically pressed on the objective lens base. According to the utility model, the positioning precision is high, the movement of the objective lens base along the horizontal direction and the Z-axis direction can be limited, the problem that the objective lens base shakes due to the fact that the objective lens base is locally deformed and cannot be completely pressed can be solved, and the problem that the processing precision is influenced due to the integral up-down elastic floating of the objective lens base can also be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to support clamping device technical field, especially, it is a kind of objective base support clamping device.

BACKGROUND

[0002] Objective base is curved surface structure, when detecting or processing, it needs to be clamped and fixed, and the general mode of adoption is that artificial fixed clamping block is clamped by fixed bolt, its clamping effect is limited, and installation and dismounting are troublesome.In the prior art, corresponding clamping tool is arranged to clamp the curved surface shell, the cylinder drives the pressing block to press on the surface of the curved surface shell, if the pressing block is used in the rigid pressing mode, due to the problem that the curved surface shell may be deformed locally, the curved surface shell may not be completely pressed and thus the curved surface shell may shake, and inaccurate positioning may cause abnormal detection or processing.Therefore, in the automobile arc-shaped sheet metal part cylinder clamping mechanism disclosed in Chinese patent publication No.CN208005506U, the arc-shaped sheet metal part is positioned by using an elastic positioning mode, the top surface of the middle support plate is fixed with a middle support elastic block, the pressing portion is fixed with an elastic protective layer close to the top surface of the edge portion of the to-be-clamped arc-shaped sheet metal part, and the top surface of the support block is fixed with a support elastic block.In this scheme, the positions in contact with the sheet metal part are all supported elastically or pressed elastically, so that even if the sheet metal part is deformed locally, the elastic support or elastic pressing moves up and down to contact the sheet metal part, thereby profiling the sheet metal part.However, the scheme uses elastic pressing or elastic support entirely, which may cause the sheet metal part to have an elastic floating problem in the vertical direction, and the elastic floating problem of the arc-shaped sheet metal part may affect the processing accuracy if the arc-shaped sheet metal part is processed in the vertical direction.

[0003] Therefore, it is necessary to provide an objective base support clamping device to solve the above technical problems.

UTILITARY MODEL CONTENT

[0004] The main purpose of the utility model is to provide an objective base support clamping device, which is accurate in positioning, can limit the movement of the objective base in the horizontal direction and the Z-axis direction, can solve the problem that the objective base shakes due to partial deformation and cannot be completely pressed, and can solve the problem that the accuracy of processing is affected due to the elastic floating of the objective base in the vertical direction.

[0005] The utility model discloses a objective base support clamping device through the following technical scheme realizes above-mentioned purpose: a kind of objective base support clamping device, it includes the positioning plate of positioning objective base, the positioning plate is provided with the accommodation objective base and with several profiling grooves of objective base profiling, the periphery of each profiling groove is provided with the horizontal positioning module of limiting objective base along horizontal direction and the Z-axis positioning module of limiting objective base along Z direction, the Z-axis positioning module includes the first Z-axis positioning module of rigidly pressing on objective base and the second Z-axis positioning module of elastically pressing on objective base.

[0006] Further, the horizontal positioning module includes a positioning block arranged at the front side of the profiling groove and pressed against the front side of the objective base, and a first positioning assembly arranged at the rear side of the profiling groove and pressed against the rear side of the objective base.

[0007] Further, the first positioning assembly includes a first cylinder and a first pressing block driven by the first cylinder and pressed against the rear side of the objective base.

[0008] Further, the positioning block has a U-shaped structure, and includes a first positioning portion shaped in accordance with the front side of the objective base, and two second positioning portions respectively extending rearward from both ends of the first positioning portion and arranged at an angle with respect to the first positioning portion, wherein the two second positioning portions are respectively shaped in accordance with the left and right sides of the objective base and position the left and right sides of the objective base.

[0009] Further, the first Z-axis positioning module includes a fixed support pin arranged on the positioning plate and supported on the lower surface of the objective base, and a first pressing assembly opposite to the fixed support pin and pressed against the upper surface of the objective base.

[0010] Further, the second Z-axis positioning module includes a movable support pin movably arranged on the positioning plate and supported on the lower surface of the objective base, an elastic driving assembly driving the movable support pin to move up and down, and a second pressing assembly opposite to the movable support pin and pressed against the upper surface of the objective base.

[0011] Further, the first pressing assembly and the second pressing assembly have the same structure and each include a hinge seat, a pressing arm hingedly connected to the hinge seat and pressed against the upper surface of the objective base, a first pin shaft rotatably connected to one end of the pressing arm, and a second cylinder driving the first pin shaft to move up and down, wherein one end of the pressing arm is opposite to the fixed support pin and is pressed against the upper and lower surfaces of the objective base, and the other end of the pressing arm is rotatably arranged at the upper end of the first pin shaft.

[0012] Further, the elastic driving assembly comprises a wedge for driving the movable support pin to move up and down and a third cylinder for driving the wedge to move, an output end of the third cylinder is provided with a second pin shaft, an active gap is arranged between the third cylinder and the left side of the wedge, a spring is arranged in the active gap, the spring is sleeved on the outer periphery of the second pin shaft, and one end of the spring abuts against the outside of the third cylinder and the other end abuts against the left side of the wedge.

[0013] Further, a screw is arranged at the end of the second pin shaft, and the other end of the screw is arranged at the left end of the wedge.

[0014] Further, a limiting screw for limiting the movable support pin to slide out upward is arranged at the bottom of the movable support pin, and the wedge is provided with an avoiding hole for avoiding the limiting screw.

[0015] Compared with the prior art, the objective lens base supporting and clamping device has the beneficial effects that: the horizontal positioning module can be tightly pressed on the four sides of the objective lens base, the movement of the objective lens base in the horizontal direction is limited, the Z-axis positioning module can limit the movement of the objective lens base in the Z direction, the first Z-axis positioning module is rigidly pressed on the objective lens base, and the second Z-axis positioning module is elastically pressed on the objective lens base, if the material has local deformation, the second Z-axis positioning module can be elastically floated up and down and tightly pressed on the objective lens base, the problem that the objective lens base cannot be completely pressed and tightly and shakes due to local deformation is solved, the first Z-axis positioning module is rigidly contacted and tightly pressed on the objective lens base, and the phenomenon of up and down floating does not exist, the problem that the machining precision is affected due to the overall up and down elastic floating of the objective lens base is solved, therefore, the positioning is accurate, and the rigid pressing and the elastic pressing are combined, the movement of the objective lens base in the horizontal direction and the Z-axis direction is limited, the problem that the objective lens base cannot be completely pressed and tightly and shakes due to local deformation is solved, and the problem that the machining precision is affected due to the overall up and down elastic floating of the objective lens base is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the objective lens base supporting and clamping device of the utility model embodiment;

[0017] Figure 2 It is a three-dimensional structure schematic view of the horizontal positioning module of the utility model embodiment;

[0018] Figure 3 It is a three-dimensional structure schematic view of the Z-axis positioning module of the utility model embodiment;

[0019] Figure 4 It is a sectional structure schematic view of the second Z-axis positioning module of the utility model embodiment;

[0020] The numbers in the figures represent:

[0021] 100 - objective base support clamping device;

[0022] 1 - positioning plate; 2 - profiling groove;

[0023] 3 - horizontal positioning module, 31 - positioning block, 311 - first positioning part, 312 - second positioning part, 32 - first positioning assembly, 321 - first air cylinder, 322 - first pressing block, 3221 - first pressing part;

[0024] 40 - Z-axis positioning module;

[0025] 5 - first Z-axis positioning module, 51 - fixed support pin, 52 - first pressing assembly, 521 - hinged seat, 522 - pressing arm, 523 - first pin shaft, 524 - second air cylinder;

[0026] 6 - second Z-axis positioning module, 61 - movable support pin, 62 - second pressing assembly, 63 - elastic driving assembly, 631 - wedge block, 632 - third air cylinder, 633 - second pin shaft, 634 - screw, 635 - movable gap, 636 - spring, 637 - limiting screw, 638 - avoiding hole.

DETAILED DESCRIPTION

[0027] Please refer to Figures 1-4 The embodiment is an objective base support clamping device 100, which comprises a positioning plate 1 for positioning an objective base 200. The positioning plate 1 is provided with a plurality of profiling grooves 2 for accommodating the objective base 200 and profiling the objective base 200. The outer periphery of each profiling groove 2 is provided with a horizontal positioning module 3 for limiting the movement of the objective base 200 in the horizontal direction and a Z-axis positioning module 40 for limiting the movement of the objective base 200 in the Z direction. The Z-axis positioning module 40 comprises a first Z-axis positioning module 5 for rigidly pressing the objective base 200 and a second Z-axis positioning module 6 for elastically pressing the objective base 200.

[0028] The horizontal positioning module 3 comprises a positioning block 31 arranged at the front side of the profiling groove 2 and pressed against the front side of the objective base 200, and a first positioning assembly 32 arranged at the rear side of the profiling groove 2 and pressed against the rear side of the objective base 200, the first positioning assembly 32 comprising a first air cylinder 321 and a first pressing block 322 driven by the first air cylinder 321 and pressed against the rear side of the objective base 200. The positioning block 31 has a U-shaped structure, and comprises a first positioning part 311 profiled with the front side of the objective base 200, and two second positioning parts 312 profiled with the left and right sides of the objective base 200 respectively and extending rearward at both ends of the first positioning part 311 and arranged at an angle with the first positioning part 311. The first positioning part 311 is arranged to position the front side of the objective base 200, and the two second positioning parts 312 are arranged to position the left and right sides of the objective base 200 respectively. The first pressing block 322 is provided with a plurality of first pressing parts 3221 arranged to press against the side edges of the objective base 200. When the objective base 200 is positioned in the profiling groove 2, the front side of the objective base 200 is arranged to abut against the first positioning part 311, the left and right sides of the front end of the objective base 200 are arranged to abut against the two second positioning parts 312 respectively, and the first air cylinder 321 is arranged to drive the first pressing block 322 to extend so that the plurality of first pressing parts 3221 are arranged to press against the rear side of the objective base 200. The first positioning part 311, the two second positioning parts 312 and the first pressing block 322 are arranged to press against the four side edges of the objective base 200, thereby limiting the movement of the objective base 200 in the horizontal direction.

[0029] In the embodiment, three first Z-axis positioning modules 5 and one second Z-axis positioning module 6 are arranged, the three first Z-axis positioning modules 5 and the one second Z-axis positioning module 6 are arranged at the four corners of the profiling groove 2 respectively, and are arranged to press against the objective base 200 to limit the movement of the objective base 200 in the Z direction. In order to arrange the components reasonably, the first positioning assembly 32 is arranged between the two first Z-axis positioning modules 5, and the second Z-axis positioning module 6 is arranged at the opposite side of the first positioning assembly 32, so that the structure is compact and the space occupied is small. If the material has local deformation, the one second Z-axis positioning module 6 arranged can be arranged to float up and down to press against the objective base 200, thereby solving the problem that the objective base 200 cannot be pressed completely and shakes due to local deformation. The three first Z-axis positioning modules 5 arranged are arranged to press against the objective base 200 in a rigid manner, and do not have the phenomenon of floating up and down, thereby solving the problem that the machining precision is affected due to the elastic floating up and down of the objective base 200. Therefore, the scheme can not only solve the problem that the objective base 200 shakes due to local deformation and cannot be pressed completely, but also solve the problem that the machining precision is affected due to the elastic floating up and down of the objective base 200.

[0030] The first Z-axis positioning module 5 comprises a fixed supporting pin 51 arranged on the positioning plate 1 and supported on the lower surface of the objective base 200, and a first pressing assembly 52 opposite to the fixed supporting pin 51 and pressing on the upper surface of the objective base 200.

[0031] The first pressing assembly 52 comprises a hinged seat 521, a pressing arm 522 hinged on the hinged seat 521 and pressing on the upper surface of the objective base 200, a first pin shaft 523 rotatably connected to one end of the pressing arm 522, and a second air cylinder 524 driving the first pin shaft 523 to move up and down. The hinged seat 521 is arranged on the positioning plate 1 or directly arranged on the second air cylinder 524; the two ends of the pressing arm 522 extend away from the two ends of the hinged seat 521 respectively, one end of the pressing arm 522 is opposite to the fixed supporting pin 51 and presses on the upper and lower surfaces of the objective base 200 together, and the other end is rotatably arranged on the upper end of the first pin shaft 523; the second air cylinder 524 is arranged on the lower surface of the positioning plate 1, and has reasonable layout and compact structure; when the second air cylinder 524 drives the first pin shaft 523 to move upward, the pressing arm 522 rotates around the hinge of the hinged seat 521, and then swings downward at one end of the pressing arm 522 opposite to the fixed supporting pin 51 and presses on the upper and lower surfaces of the objective base 200 together by using the lever principle; when the second air cylinder 524 drives the first pin shaft 523 to move downward, the pressing arm 522 rotates around the hinge of the hinged seat 521, and then swings upward at one end of the pressing arm 522 by using the lever principle, so that the pressing arm 522 is opened and the objective base 200 can be taken out.

[0032] The second Z-axis positioning module 6 comprises a movable supporting pin 61 movably arranged on the positioning plate 1 and supported on the lower surface of the objective base 200, an elastic driving assembly 63 driving the movable supporting pin 61 to move up and down, and a second pressing assembly 62 opposite to the movable supporting pin 61 and pressing on the upper surface of the objective base 200. The structure and action principle of the second pressing assembly 62 are consistent with those of the first pressing assembly 52, and will not be described here.

[0033] The elastic driving assembly 63 comprises a wedge block 631 driving the movable support pin 61 to move up and down, and a third cylinder 632 driving the wedge block 631 to move, the wedge block 631 is matched with the movable support pin 61 through a slope, and the movable support pin 61 is driven to move down by driving the wedge block 631 to move left by the third cylinder 632; the output end of the third cylinder 632 is provided with a second pin shaft 633, and an active gap 635 is arranged between the third cylinder 632 and the left side of the wedge block 631, a spring 636 is arranged in the active gap 635, the spring 636 is sleeved on the outer periphery of the second pin shaft 633, and one end of the spring 636 abuts against the outside of the third cylinder 632 and the other end abuts against the left side of the wedge block 631. When the third cylinder 632 drives the wedge block 631 to move left to realize that the movable support pin 61 moves down to the position, the spring 636 is compressed, when the movable support pin 61 needs to move up to be supported on the lower surface of the objective base 200, the third cylinder 632 switches the gas path, at this time, the second pin shaft 633 of the third cylinder 632 can move left and right, the spring 636 is stretched, and the wedge block 631 is driven to move right with the second pin shaft 633, so as to push the movable support pin 61 up and elastically support it on the lower surface of the objective base 200, since the wedge block 631 is elastically moved, the movable support pin 61 is also elastically supported on the lower surface of the objective base 200, and even if the objective base 200 is locally deformed, the objective base 200 can also be guaranteed to be contoured and positioned in contact.

[0034] In order to facilitate the installation between the second pin shaft 633 and the wedge block 631, the screw 634 is arranged at the end of the second pin shaft 633, the other end of the screw 634 is arranged at the left end of the wedge block 631, and the installation between the second pin shaft 633 and the wedge block 631 is realized by tightening or loosening the screw 634. In order to prevent the movable support pin 61 from sliding upward, the limiting screw 637 limiting the movable support pin 61 from sliding upward is arranged at the bottom of the movable support pin 61, and correspondingly, the avoiding hole 638 avoiding the limiting screw 637 is arranged on the wedge block 631.

[0035] When the objective lens base support clamping device 100 is applied, the objective lens base 200 is placed into the profiling groove 2, the front side of the objective lens base 200 abuts against the first positioning part 311, the left and right sides of the front end of the objective lens base 200 abut against the two second positioning parts 312, the first cylinder 321 drives the first pressing block 322 to extend so that the plurality of first pressing parts 3221 press against the rear side of the objective lens base 200, the first positioning part 311, the two second positioning parts 312 and the first pressing block 322 jointly press against the four sides of the objective lens base 200, which can limit the movement of the objective lens base 200 in the horizontal direction; the first pressing assembly 52 of the three first Z-axis positioning modules 5 starts to work, when the second cylinder 524 drives the first pin shaft 523 to move upward, the pressing arm 522 rotates around the hinge of the hinge seat 521, and then utilizes the lever principle, one end of the pressing arm 522 swings downward and is opposite to the fixed support pin 51 and jointly presses against the upper and lower surfaces of the objective lens base 200, at the same time, the third cylinder 632 switches the gas circuit, the spring 636 is stretched, drives the wedge block 631 and the second pin shaft 633 to move rightward elastically, thereby pushing the movable support pin 61 upward and elastically supporting the lower surface of the objective lens base 200, the second pressing assembly 62 is pressed above the movable support pin 61, thereby the second pressing assembly 62 and the movable support pin 61 jointly press against the upper and lower surfaces of the objective lens base 200, the three first Z-axis positioning modules 5 and one second Z-axis positioning module 6 are located at the four corners of the profiling groove 2 and jointly press against the objective lens base 200, which can limit the movement of the objective lens base 200 in the Z direction, after the objective lens base 200 is positioned, detection or machining is started, after the machining is completed, the third cylinder 632 drives the wedge block 631 to move leftward to realize the movable support pin 61 to move downward to the position, at this time, the spring 636 is compressed, at the same time, the first cylinder 321, the first pressing assembly 52 and the second pressing assembly 62 are reset and leave the surface of the objective lens base 200, the objective lens base 200 is taken out, the new objective lens base 200 is placed again, and the next round of detection or machining is carried out.

[0036] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept, which are all within the protection scope of the present application.

Claims

1. An objective nosepiece support clamping device, characterized by: It includes a positioning plate for positioning the objective base, the positioning plate is provided with a plurality of profiling grooves for accommodating the objective base and profiling the objective base, the outer periphery of each profiling groove is provided with a horizontal positioning module for limiting the horizontal movement of the objective base and a Z-axis positioning module for limiting the movement of the objective base along the Z direction, the Z-axis positioning module includes a first Z-axis positioning module rigidly pressed on the objective base and a second Z-axis positioning module elastically pressed on the objective base.

2. An objective base support clamping device as claimed in claim 1, characterized in that: The horizontal positioning module includes a positioning block arranged at the front side of the profiling groove and pressed on the front side of the objective base and a first positioning assembly arranged at the rear side of the profiling groove and pressed on the rear side of the objective base.

3. An objective nosepiece support clamp apparatus as claimed in claim 2, wherein: The first positioning assembly includes a first cylinder and a first pressing block driven by the first cylinder and pressed on the rear side of the objective base.

4. An objective nosepiece support clamp apparatus as claimed in claim 2, wherein: The positioning block has a U-shaped structure, the positioning block includes a first positioning part profiling the front side of the objective base and two second positioning parts extending to the rear side at both ends of the first positioning part and arranged at an angle with the first positioning part, the two second positioning parts are respectively profiled with the left and right sides of the objective base and respectively position the left and right sides of the objective base.

5. An objective nosepiece support clamp apparatus as claimed in claim 1, wherein: The first Z-axis positioning module includes a fixed support pin arranged on the positioning plate and supported on the lower surface of the objective base and a first pressing assembly opposite to the fixed support pin and pressed on the upper surface of the objective base.

6. An objective nosepiece support clamp apparatus as claimed in claim 5, characterised in that: The second Z-axis positioning module includes a movable support pin movably arranged on the positioning plate and supported on the lower surface of the objective base, an elastic driving assembly driving the movable support pin to move up and down and a second pressing assembly opposite to the movable support pin and pressed on the upper surface of the objective base.

7. An objective nosepiece support clamp apparatus as claimed in claim 6, characterised in that: The first pressing assembly and the second pressing assembly have the same structure and each include a hinge seat, a pressing arm hingedly arranged on the hinge seat and pressed on the upper surface of the objective base, a first pin shaft rotatably connected to one end of the pressing arm and a second cylinder driving the first pin shaft to move up and down, one end of the pressing arm is opposite to the fixed support pin and is jointly pressed on the upper and lower surfaces of the objective base, the other end is rotatably arranged on the upper end of the first pin shaft.

8. An objective nosepiece support clamp apparatus as claimed in claim 6, wherein: The elastic driving assembly includes a wedge driving the movable support pin to move up and down and a third cylinder driving the wedge to move, the output end of the third cylinder is provided with a second pin shaft, an active gap is arranged between the third cylinder and the left side of the wedge, a spring is arranged in the active gap, the spring is sleeved on the outer periphery of the second pin shaft, one end of the spring abuts on the outer side of the third cylinder and the other end abuts on the left side of the wedge.

9. An objective nosepiece support clamp apparatus as claimed in claim 8, characterised in that: A screw is arranged at the end of the second pin shaft, the other end of the screw is arranged at the left end of the wedge.

10. An objective nosepiece support clamp apparatus as claimed in claim 8, wherein: A limiting screw is arranged at the bottom of the movable support pin to limit the upward sliding of the movable support pin, an avoiding hole is arranged on the wedge to avoid the limiting screw.

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