CN218822246U - Three-coordinate measuring instrument - Google Patents

Abstract

The utility model discloses a three-coordinate measuring instrument, including setting up the detection arm on the measuring apparatu body, the lower extreme of detecting the arm is provided with the piston rod, and the lower extreme fixedly connected with automatic seat that surveys of piston rod, the lateral wall fixedly connected with connecting box of automatic seat that surveys, and the bottom of connecting box inserts and be equipped with the carriage release lever, the upper end of carriage release lever is connected through the inside wall of first canceling release mechanical system with the connecting box, and the lower extreme fixedly connected with U-shaped plate of carriage release lever, the lateral wall of U-shaped plate rotates through the pivot and is connected with the rolling disc, and a plurality of gauge heads of lateral wall fixedly connected with of rolling disc, the lateral wall of U-shaped plate is provided with and is used for carrying out spacing stop gear to the pivot. This kind of three-coordinate measuring instrument through setting up a plurality of gauge heads to be convenient for use by turns according to the measurement demand, thereby make the change convenient and fast more to the gauge head, and then improve measuring efficiency.

Description

Three-coordinate measuring instrument

Technical Field

The utility model relates to a measuring equipment technical field especially relates to a three-coordinate measuring instrument.

Background

A three-dimensional measuring instrument is an instrument that measures by taking points three-dimensionally, and may also be called a three-dimensional measuring machine, a three-dimensional measuring instrument. The measurement principle of the three-coordinate measuring instrument is as follows: through the matching of the movement of the measuring head and the axis of the measuring space, the discrete spatial point position of the measured geometric element is obtained, then through certain mathematical calculation, the analysis and fitting of the measured point (point group) are completed, the measured geometric element is finally restored, and the deviation between the measured geometric element and a theoretical value (nominal value) is calculated on the basis, so that the inspection work of the measured part is completed. The three-coordinate measuring instrument mainly comprises a host machine mechanical system (three axes of X, Y and Z, etc.), a measuring head system, an electrical control hardware system and a data processing software system (measuring software). The measuring head system is arranged on a host machine mechanical system and can move in a three-dimensional space under the control of an electrical control hardware system, so that the measured geometric elements can be detected in all directions, and the obtained detection result is transmitted to a data processing software system for processing.

However, when the existing three-coordinate measuring instrument is used, the measuring head is fixedly connected to the automatic measuring seat through the threads, and when different measuring heads need to be replaced according to measuring requirements, the measuring head needs to be detached and replaced by other measuring heads, so that the replacing process is not convenient and fast enough, and the measuring efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a three-coordinate measuring instrument, is including setting up the exploration arm on the measuring apparatu body, the lower extreme of exploring the arm is provided with the piston rod, and the lower extreme fixedly connected with automatic seat of surveying of piston rod, the lateral wall fixedly connected with connecting box of automatic seat of surveying, and the bottom of connecting box inserts and be equipped with the carriage release lever, the upper end of carriage release lever is connected with the inside wall of connecting box through a canceling release mechanical system, and the lower extreme fixedly connected with U-shaped plate of carriage release lever, the lateral wall of U-shaped plate rotates through the pivot and is connected with the rolling disc, and a plurality of gauge heads of lateral wall fixedly connected with of rolling disc, the lateral wall of U-shaped plate is provided with and is used for carrying out spacing stop gear to the pivot.

Preferably, stop gear establishes the solid fixed ring at the pivot lateral wall including fixed cover, and the spacing groove that a plurality of arrays set up is seted up to solid fixed ring's lateral wall, the lateral wall of U-shaped plate is connected with the stopper through reset assembly, and stopper and spacing groove offset.

Preferably, the reset assembly comprises a connecting plate fixedly connected to the side wall of the U-shaped plate, two T-shaped guide rods symmetrically arranged are inserted into the upper side wall of the connecting plate, the lower ends of the T-shaped guide rods are fixed to the upper side wall of the limiting block, and first springs are sleeved on the side walls of the T-shaped guide rods.

Preferably, the first reset mechanism comprises a sliding plate which is slidably connected in the connecting box, the upper end of the moving rod is fixed to the lower side wall of the sliding plate, a second spring is sleeved on the side wall of the moving rod, a limiting component used for limiting the sliding plate is arranged on the side wall of the connecting box, and a detection mechanism used for detecting the sliding plate is arranged on the side wall of the connecting box.

Preferably, spacing subassembly is including seting up at the first bar opening of connecting box lateral wall, and sliding connection has the sliding block in the first bar opening, the sliding block is fixed with the lateral wall of sliding plate, and the lateral wall fixedly connected with fixed block of connecting box, the lateral wall fixedly connected with mounting panel of fixed block, and the lateral wall of mounting panel is connected with three hornblocks that a plurality of arrays set up through second canceling release mechanical system, three hornblocks include spacing face and inclined plane, and the sliding block slides on the inclined plane.

Preferably, second canceling release mechanical system is including seting up the sliding tray in the mounting panel, and is connected with the movable plate through flexible subassembly in the sliding tray, the second bar opening has been seted up to the lateral wall of mounting panel, and the triangle block is inserted and is established in the second bar opening and fixed with the lateral wall of movable plate, the removal of movable plate promotes through pushing mechanism.

Preferably, the telescopic component comprises loop bars which are fixedly connected to two symmetrical sides of the side wall of the moving plate, a sleeve is sleeved on the side wall of each loop bar, the other end of the sleeve is fixed to the side wall of the sliding groove, and a third spring is sleeved on the side wall of the sleeve.

Preferably, pushing mechanism is including seting up the breach at the mounting panel top, and breach and sliding tray intercommunication, sliding connection has the slurcam in the breach, and the slurcam is fixed with the lateral wall of movable plate.

Preferably, the detection mechanism comprises a mounting hole formed in the side wall of the connecting box, and a distance sensor is fixedly mounted in the mounting hole.

The utility model provides a beneficial effect that technical scheme brought is:

the utility model discloses a three-coordinate measuring instrument, through setting up stop gear etc., when different gauge heads are changed according to the measurement demand to needs, pulling T shape guide arm makes its rebound, thereby withdraw from the stopper from the spacing inslot, and simultaneously, first spring is compressed, then, rotate the rolling disc, thereby the gauge head that will use rotates to bottommost and is in vertical state, treat to change the completion back, loosen T shape guide arm, this moment, make stopper and spacing groove offset once more under the effect of first spring, thereby carry on spacingly to solid fixed ring and pivot, avoid the rolling disc to rotate at will, through setting up a plurality of gauge heads, and be convenient for carry out alternate use according to the measurement demand, thereby make the change to the gauge head convenient and fast more, and then improve measuring efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

Fig. 1 is a schematic perspective view of a three-dimensional coordinate measuring apparatus of the present invention;

fig. 2 is a schematic structural view of a limiting mechanism in the middle three-coordinate measuring instrument of the present invention;

FIG. 3 is a schematic diagram of a partial cross-sectional structure of a connection box of the middle three-coordinate measuring machine of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 5 is an enlarged schematic view of the structure at B in FIG. 3;

fig. 6 is an enlarged schematic view of the structure at C in fig. 5.

In the figure: 1. a gauge body; 101. a probe arm; 102. a piston rod; 103. automatic measuring seats; 201. a fixing ring; 202. a limiting groove; 203. a limiting block; 301. a connecting plate; 302. a T-shaped guide rod; 303. a first spring; 401. a sliding plate; 402. a second spring; 501. a first bar-shaped opening; 502. a slider; 503. a fixed block; 504. mounting a plate; 505. a triangular block; 506. a limiting surface; 507. a bevel; 601. a sliding groove; 602. moving the plate; 603. a second strip-shaped opening; 701. a loop bar; 702. a sleeve; 703. a third spring; 801. mounting holes; 802. a distance sensor; 901. a notch; 902. a push plate; 10. a travel bar; 11. a U-shaped plate; 12. a rotating shaft; 13. rotating the disc; 14. a measuring head; 15. and a connecting box.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

In the following description, for clarity and conciseness of description, not all of the various components shown in the figures are described. The various components shown in the figures provide those skilled in the art with a fully enabled disclosure of the invention. The operation of many of the components is familiar and obvious to those skilled in the art.

Example (b):

as shown in fig. 1 to fig. 6, the present embodiment provides a three-coordinate measuring instrument, which includes a detecting arm 101 disposed on a measuring instrument body 1, a piston rod 102 is disposed at a lower end of the detecting arm 101, an automatic measuring seat 103 is fixedly connected to a lower end of the piston rod 102, a connecting box 15 is fixedly connected to a side wall of the automatic measuring seat 103, a moving rod 10 is inserted into a bottom of the connecting box 15, an upper end of the moving rod 10 is connected to an inner side wall of the connecting box 15 through a first resetting mechanism, a U-shaped plate 11 is fixedly connected to a lower end of the moving rod 10, a rotating disc 13 is rotatably connected to a side wall of the U-shaped plate 11 through a rotating shaft 12, a plurality of measuring heads 14 are fixedly connected to a side wall of the rotating disc 13, a limiting mechanism for limiting the rotating shaft 12 is disposed on the side wall of the U-shaped plate 11, and a plurality of measuring heads 14 are disposed, and are convenient to be used alternately according to measuring requirements, so that the measuring heads 14 can be replaced more conveniently and the measuring efficiency can be improved.

Preferably, the limiting mechanism comprises a fixing ring 201 fixedly sleeved on the side wall of the rotating shaft 12, the side wall of the fixing ring 201 is provided with a plurality of limiting grooves 202 arranged in an array, the side wall of the u-shaped plate 11 is connected with a limiting block 203 through a reset component, the limiting block 203 abuts against the limiting grooves 202, when different measuring heads 14 need to be replaced according to measurement requirements, the T-shaped guide rod 302 is pulled to move upwards, the limiting block 203 is withdrawn from the limiting grooves 202, meanwhile, the first spring 303 is compressed, then, the rotating disc 13 rotates, the measuring head 14 needed to be used rotates to the bottommost part and is in a vertical state, after replacement is completed, the T-shaped guide rod 302 is loosened, at the moment, the limiting block 203 abuts against the limiting grooves 202 again under the action of the first spring 303, and therefore the fixing ring 201 and the rotating shaft 12 are limited.

Preferably, the reset assembly comprises a connecting plate 301 fixedly connected to the side wall of the U-shaped plate 11, two symmetrically arranged T-shaped guide rods 302 are inserted into the upper side wall of the connecting plate 301, the lower ends of the T-shaped guide rods 302 are fixed to the upper side wall of the limiting block 203, and the side wall of the T-shaped guide rod 302 is sleeved with a first spring 303 to guide and reset the movement of the limiting block 203.

Preferably, the first resetting mechanism includes a sliding plate 401 slidably connected in the connection box 15, and the upper end of the moving rod 10 is fixed to the lower side wall of the sliding plate 401, the side wall of the moving rod 10 is sleeved with a second spring 402, and the side wall of the connection box 15 is provided with a limiting component for limiting the sliding plate 401, the side wall of the connection box 15 is provided with a detection mechanism for detecting the sliding plate 401, the movement of the moving rod 10 is guided and reset, when the measuring head 14 abuts against the workpiece, the sliding plate 401 moves upwards along the inner wall of the connection box 15, and the second spring 402 is stretched at the same time, when the measuring head 14 collides with the workpiece, the second spring 402 is stretched to a certain extent, and the piston rod 102 drives the measuring head 14 to move upwards, so as to be separated from the workpiece, so as to play a protection effect on the measuring head 14 and the workpiece, and avoid the damage to the measuring head 14 and the workpiece.

Preferably, the limiting component includes a first strip-shaped opening 501 arranged on the side wall of the connection box 15, a sliding block 502 is connected in the first strip-shaped opening 501 in a sliding manner, the sliding block 502 is fixed to the side wall of the sliding plate 401, a fixed block 503 is fixedly connected to the side wall of the connection box 15, a mounting plate 504 is fixedly connected to the side wall of the fixed block 503, the side wall of the mounting plate 504 is connected with a plurality of triangular blocks 505 arranged in an array manner through a second resetting mechanism, each triangular block 505 includes a limiting surface 506 and an inclined surface 507, and the sliding block 502 slides on the inclined surface 507, when the sliding plate 401 moves upwards, the sliding block 502 slides in the first strip-shaped opening 501, and simultaneously, the sliding block 502 slides on the inclined surface 507, and retracts the triangular blocks 505 into the connection box 15, so that the sliding plate 401 can normally move upwards, and when the sliding block 502 stops moving, the triangular blocks 505 can extend out under the action of the second resetting mechanism, and the limiting surfaces 506 abut against the side wall of the sliding block 502, so as to limit the sliding block 502.

Preferably, the second reset mechanism includes a sliding groove 601 formed in the mounting plate 504, the sliding groove 601 is connected with a moving plate 602 through a telescopic assembly, a second strip-shaped opening 603 is formed in a side wall of the mounting plate 504, the triangular block 505 is inserted into the second strip-shaped opening 603 and fixed to the side wall of the moving plate 602, the moving plate 602 is pushed by the pushing mechanism, and the guiding and resetting effects are achieved on the movement of the triangular block 505.

Preferably, the telescopic assembly comprises two symmetrically-arranged loop bars 701 fixedly connected to the side wall of the moving plate 602, a sleeve 702 is sleeved on the side wall of each loop bar 701, the other end of each sleeve 702 is fixed to the side wall of the sliding groove 601, and a third spring 703 is sleeved on the side wall of each sleeve 702 to guide and reset the moving plate 602.

Preferably, the pushing mechanism includes a notch 901 formed in the top of the mounting plate 504, the notch 901 is communicated with the sliding groove 601, a pushing plate 902 is connected in the notch 901 in a sliding manner, the pushing plate 902 is fixed to the side wall of the moving plate 602, when the measuring head 14 needs to be reset, the pushing plate 902 is pushed to move in a direction away from the sliding block 502, so that the triangular block 505 is separated from the sliding block 502, at this time, the limiting on the sliding block 502 is lost, and the moving rod 10 and the measuring head 14 can move downwards under the action of the second spring 402 to reset.

Preferably, the detection mechanism includes an installation hole 801 formed in a side wall of the connection box 15, and a distance sensor 802 is fixedly installed in the installation hole 801, when the measuring head 14 collides with the workpiece, the second spring 402 is stretched to a certain extent, and meanwhile, the sliding plate 401 moves upward, when the distance sensor 802 detects the sliding plate 401, the piston rod 102 drives the measuring head 14 to move upward, so that the protection effect is better.

The working principle is as follows: when the measuring head 14 is used, firstly, when different measuring heads 14 need to be replaced according to measurement requirements, the T-shaped guide rod 302 is pulled to move upwards, so that the limiting block 203 is withdrawn from the limiting groove 202, and meanwhile, the first spring 303 is compressed;

then, the rotating disc 13 is rotated, so that the measuring head 14 to be used is rotated to the bottommost part and is in a vertical state, after the replacement is completed, the T-shaped guide rod 302 is loosened, at the moment, the limiting block 203 is abutted against the limiting groove 202 again under the action of the first spring 303, the fixing ring 201 and the rotating shaft 12 are limited, the rotating disc 13 is prevented from rotating randomly, the plurality of measuring heads 14 are arranged, and the measuring heads 14 can be replaced conveniently and rapidly according to the measurement requirements, and the measurement efficiency is improved;

when the gauge head 14 abuts against the workpiece at the time of measurement, the slide plate 401 moves upward along the inner wall of the connection box 15 while the second spring 402 is stretched, and when the gauge head 14 collides with the workpiece, the second spring 402 is stretched to some extent;

when the distance sensor 802 detects the sliding plate 401, the piston rod 102 drives the measuring head 14 to move upwards, so as to be separated from the workpiece, thereby protecting the measuring head 14 and the workpiece and avoiding damage to the measuring head 14 and the workpiece.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a three-coordinate measuring instrument, is including setting up surveying arm (101) on measuring apparatu body (1), the lower extreme of surveying arm (101) is provided with piston rod (102), and the lower extreme fixedly connected with of piston rod (102) surveys seat (103) automatically, its characterized in that: lateral wall fixedly connected with connecting box (15) of automatic seat (103) of surveying, and the bottom of connecting box (15) is inserted and is equipped with carriage release lever (10), the upper end of carriage release lever (10) is connected with the inside wall of connecting box (15) through first canceling release mechanical system, and the lower extreme fixedly connected with U-shaped plate (11) of carriage release lever (10), the lateral wall of U-shaped plate (11) rotates through pivot (12) and is connected with rolling disc (13), and a plurality of gauge heads (14) of lateral wall fixedly connected with of rolling disc (13), the lateral wall of U-shaped plate (11) is provided with and is used for carrying out spacing stop gear to pivot (12).

2. A coordinate measuring machine according to claim 1, wherein: stop gear is established at solid fixed ring (201) of pivot (12) lateral wall including fixed cover, and just the lateral wall of solid fixed ring (201) sets up spacing groove (202) that a plurality of arrays set up, the lateral wall of U-shaped board (11) is connected with stopper (203) through the subassembly that resets, and stopper (203) offset with spacing groove (202).

3. A three coordinate measuring machine as defined in claim 2, wherein: reset assembly includes connecting plate (301) of fixed connection at U-shaped board (11) lateral wall, and the last lateral wall of connecting plate (301) inserts T shape guide arm (302) that are equipped with two symmetries and set up, the lower extreme of T shape guide arm (302) is fixed with the last lateral wall of stopper (203), and the lateral wall cover of T shape guide arm (302) is equipped with first spring (303).

4. A coordinate measuring machine according to claim 2, wherein: the first resetting mechanism comprises a sliding plate (401) which is slidably connected in a connecting box (15), the upper end of a moving rod (10) is fixed to the lower side wall of the sliding plate (401), a second spring (402) is sleeved on the side wall of the moving rod (10), a limiting component used for limiting the sliding plate (401) is arranged on the side wall of the connecting box (15), and a detection mechanism used for detecting the sliding plate (401) is arranged on the side wall of the connecting box (15).

5. A coordinate measuring machine according to claim 4, wherein: spacing subassembly is including offering at first bar opening (501) of connecting box (15) lateral wall, and sliding connection has sliding block (502) in first bar opening (501), sliding block (502) are fixed with the lateral wall of sliding plate (401), and the lateral wall fixedly connected with fixed block (503) of connecting box (15), the lateral wall fixedly connected with mounting panel (504) of fixed block (503), and the lateral wall of mounting panel (504) is connected with three hornblocks (505) that a plurality of arrays set up through second canceling release mechanical system, three hornblocks (505) are including spacing face (506) and inclined plane (507), and sliding block (502) slide on inclined plane (507).

6. A three coordinate measuring machine as defined in claim 5, wherein: the second canceling release mechanical system is including offering sliding tray (601) in mounting panel (504), and is connected with movable plate (602) through flexible subassembly in sliding tray (601), second bar opening (603) have been seted up to the lateral wall of mounting panel (504), and three hornblocks (505) insert and establish in second bar opening (603) and fixed with the lateral wall of movable plate (602), the removal of movable plate (602) promotes through pushing mechanism.

7. A coordinate measuring machine according to claim 6, wherein: the telescopic assembly comprises two symmetrically-arranged loop bars (701) fixedly connected to the side wall of the moving plate (602), a sleeve (702) is sleeved on the side wall of each loop bar (701), the other end of the sleeve (702) is fixed to the side wall of the sliding groove (601), and a third spring (703) is sleeved on the side wall of the sleeve (702).

8. A three coordinate measuring machine as defined in claim 6, wherein: the pushing mechanism comprises a notch (901) formed in the top of the mounting plate (504), the notch (901) is communicated with the sliding groove (601), a pushing plate (902) is connected in the notch (901) in a sliding mode, and the pushing plate (902) is fixed to the side wall of the moving plate (602).

9. A coordinate measuring machine according to claim 4, wherein: the detection mechanism comprises a mounting hole (801) formed in the side wall of the connecting box (15), and a distance sensor (802) is fixedly mounted in the mounting hole (801).

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