CN212445122U

CN212445122U - Three-coordinate measuring device

Info

Publication number: CN212445122U
Application number: CN202021223265.5U
Authority: CN
Inventors: 徐洪全
Original assignee: Wuxi Ruijing Machinery Parts Co ltd
Current assignee: Wuxi Ruijing Machinery Parts Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-02
Anticipated expiration: 2030-06-28

Abstract

The utility model relates to the technical field of measuring instruments, in particular to a three-coordinate measuring device, which comprises a measuring table, wherein the measuring table is provided with a placing table for placing a workpiece, and the measuring table is provided with a moving assembly for driving the placing table to move; the moving assembly comprises a sliding groove formed in the upper surface of the measuring table, a driving shaft rotatably connected to one end of the sliding groove in the length direction, a driving gear fixedly sleeved on the outer side wall of the driving shaft, a driven shaft rotatably connected to the other end of the sliding groove in the length direction, a driven gear fixedly sleeved on the outer side wall of the driven shaft and a transmission chain respectively engaged with the driving gear and the driven gear, wherein the length direction of the sliding groove is parallel to the length direction of the measuring table; one end of the driving shaft is provided with a driving assembly for driving the driving shaft to rotate, and the placing table is fixedly connected to the transmission chain. The moving assembly can move the workpiece to different positions, and has the effects of convenient operation and convenient measurement.

Description

Three-coordinate measuring device

Technical Field

The utility model belongs to the technical field of the technique of measuring instrument and specifically relates to a three-coordinate measuring device is related to.

Background

The three-coordinate measuring instrument is a precision measuring instrument, it has a detector which can be moved in three directions, and can be moved on three mutually-perpendicular guide rails, and the detector can be used for transmitting signal by means of contact or non-contact mode, and the displacement measuring system (for example grating rule) with three axes can be used for calculating various points of workpiece and measuring various functions by means of data processor or computer. Thus realizing the measurement of dimensional accuracy, positioning accuracy, geometric accuracy and contour accuracy.

A die cast is a pressure cast part, which is a part formed and sized by casting molten liquid metal by a die casting machine. Since the die casting is processed in a liquid state at a high pressure in a die casting machine during processing, and the liquid metal has good ductility and plasticity, the die casting can be made into parts with various specific shapes, the surface smoothness of the die casting is high, and therefore a three-coordinate measuring device is generally used for detecting the die casting.

The current chinese utility model patent that the grant bulletin number is CN207850335U discloses a three-coordinate measuring machine's measuring station, this measuring station for arranging three-coordinate measuring machine's processing board below in, this measuring station includes marble board and presss from both sides the bolster, the marble board includes board portion and boss portion, and boss portion is located board portion one side and links to each other with board an organic whole, press from both sides the bolster and arrange the board portion of marble board and its and board portion size looks adaptation in. The utility model discloses a having increased the double-layered backing plate of an assistance-localization real-time on original marble platform machine bench, having seted up a plurality of screw holes on it to the supplementary volume of awaiting measuring work piece clamping of fixing a position realizes the effective location to the volume of awaiting measuring work piece, thereby ensures the measuring accuracy, has also improved measurement efficiency, reduces measurement cost.

The above prior art solutions have the following drawbacks: the work piece utilizes a plurality of screw holes to carry out assistance-localization real-time clamp dress on pressing from both sides the backing plate, when the measurement of other faces of work piece need be carried out, for example when the profile of work piece bottom surface needs to be measured, just need dismantle the anchor clamps in each screw hole respectively, then take out the manual work with the work piece and overturn the positioning, but when utilizing great measuring station to measure the work piece, because the measuring station has great area, when the work piece is located the central department of workstation operating personnel all is more inconvenient taking the work piece, especially in the very heavy condition of work piece quality, the operation is more inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-coordinate measuring device, it has convenient operation's effect to the not enough of prior art existence.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a three-coordinate measuring device comprises a measuring table, wherein a placing table for placing a workpiece is arranged on the measuring table, and a moving assembly for driving the placing table to move is arranged on the measuring table;

the moving assembly comprises a sliding groove formed in the upper surface of the measuring table, a driving shaft rotatably connected to one end of the sliding groove in the length direction, a driving gear fixedly sleeved on the outer side wall of the driving shaft, a driven shaft rotatably connected to the other end of the sliding groove in the length direction, a driven gear fixedly sleeved on the outer side wall of the driven shaft and a transmission chain respectively engaged with the driving gear and the driven gear, the central line of the sliding groove is superposed with the central line of the measuring table, and the length direction of the sliding groove is parallel to the length direction of the measuring table;

one end of the driving shaft is provided with a driving assembly used for driving the driving shaft to rotate, and the placing table is fixedly connected to the transmission chain.

Through adopting above-mentioned technical scheme, when the operation of adjustment positions such as needs overturn the work piece, start drive assembly, drive the driving shaft and rotate, and then drive the driving gear and rotate, further drive chain and rotate, and then drive and place the platform and slide along the length direction in groove that slides to the one end that removes the work piece to the measuring station is located from the center of measuring station to the convenient one end that removes the work piece, and then makes things convenient for the staff to carry out follow-up operation, has improved measuring convenience.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a driven synchronous gear arranged at one end of the length direction of the driving shaft, a servo motor arranged on the upper surface of the measuring table and a driving synchronous gear arranged at the end part of an output shaft of the servo motor, and the driving synchronous gear is meshed with the driven synchronous gear.

Through adopting above-mentioned technical scheme, a structure of drive assembly is provided, when using, start servo motor, drive initiative synchronous gear and rotate, and then drive the driven synchronous gear rotation of meshing with it, further drive the driving shaft and rotate, servo motor's the output shaft the rotational speed is adjustable, can drive the driving shaft and form different rotational speeds, and then control drive chain and form different rotational speeds, and then the control is placed the different speeds that move of platform, and whole convenient control is conveniently controlled.

The present invention may be further configured in a preferred embodiment as: the measuring table is characterized in that guide rails are arranged on two sides of the upper surface of the measuring table in the length direction of the sliding groove, guide grooves are arranged at two ends of the length direction of the bottom surface of the placing table, and the guide grooves are in sliding fit with the guide rails.

Through adopting above-mentioned technical scheme, when removing the subassembly and drive and place the platform and remove, place the platform and pass through guide rail sliding connection on the guide slot, the sliding fit of guide rail and guide slot gives and places better direction and the limiting displacement of platform, improves accuracy nature and stability when placing the platform and remove, and then makes the removal of work piece more stable, avoids the work piece to take place small displacement, improves measurement accuracy.

The present invention may be further configured in a preferred embodiment as: two a plurality of recesses have all been seted up to the upper surface of guide rail, and is a plurality of the recess sets up along the length direction interval of guide rail, every equal roll connection has the ball in the recess.

Through adopting above-mentioned technical scheme, place the platform when removing along the guide rail, guide slot and ball direct contact, the ball rotates in the recess to sliding friction who will be originally turns into rolling friction, has greatly reduced the frictional force between guide slot and the guide rail, has improved the smoothness nature and the stability of placing the platform removal, has improved the convenience when operating.

The present invention may be further configured in a preferred embodiment as: the placing table is provided with a clamping assembly; press from both sides dress subassembly including setting up at the fixed block of placing bench surface length direction both ends, respectively the level run through the threaded rod that two fixed blocks set up and set up respectively at the threaded rod towards the fixed plate of placing platform center one end, the one end and the fixed plate rotation butt of fixed plate of threaded rod orientation.

Through adopting above-mentioned technical scheme, when pressing from both sides the dress work piece, adjusting threaded rod for the fixed plate supports tightly the work piece and can be fixed the work piece, and the clamp that has avoided a plurality of bolted connection adorns the subassembly structure and leads to dismantling comparatively troublesome, has finally made things convenient for operating personnel's use.

The present invention may be further configured in a preferred embodiment as: the fixed plate is detachably connected with a propping module, and one surface of the propping module facing the workpiece is provided with various shapes.

By adopting the technical scheme, the clamping modules in different shapes can be detachably mounted on the fixing plate aiming at workpieces in different shapes, so that the clamping assembly can be better matched with workpieces in different shapes and sizes, the mounting and dismounting processes of operators are facilitated, and the convenience of the measuring device in use is improved.

The present invention may be further configured in a preferred embodiment as: the fixed plate upper surface is vertical to be equipped with a plurality of joint grooves, it is equipped with the joint piece to support tight module towards the one side of fixed plate, the vertical joint cooperation joint groove setting of joint piece.

Through adopting above-mentioned technical scheme, provide one kind and support tight module and can dismantle the structure of connection, when the installation, with joint piece sliding connection can be with supporting tight module installation in the joint inslot, it is comparatively convenient to operate.

The present invention may be further configured in a preferred embodiment as: the fixing plate upper surface is equipped with a plurality of screw holes, the one side of supporting tight module towards the fixing plate is equipped with the connecting plate, the connecting plate passes through fixing bolt and connects on the fixing plate.

Through adopting above-mentioned technical scheme, provide another kind and support tight module and dismantle the structure of connecting, when the installation, the connecting plate passes through a plurality of fixing bolt and connects in the screwed hole.

The present invention may be further configured in a preferred embodiment as: the both sides of placing the platform upper surface length direction are equipped with the spout, the bottom of fixed plate is equipped with the slider, slider sliding connection is in the spout.

Through adopting above-mentioned technical scheme, the cooperation of slider and spout makes the fixed plate more stable and accurate when removing, and then makes the fixed plate more accurate when fixed work piece, avoids the aversion of work piece, improves measuring accuracy.

The present invention may be further configured in a preferred embodiment as: and one end of the threaded rod, which is far away from the center of the placing table, is provided with an adjusting hand wheel.

Through adopting above-mentioned technical scheme, the staff is when adjusting the screw thread, through adjusting the hand wheel convenient operation more, convenience when having improved the regulation.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the placing table is arranged on the measuring table, and the moving assembly for driving the placing table to move is arranged on the measuring table, so that the workpiece can move in a reciprocating manner along the length direction of the measuring table, and under the condition that the size of the measuring table is large and the workpiece is heavy, the driving assembly is operated to drive the moving assembly, and then the placing table is driven to move to one end of the measuring table, so that the workpiece can be conveniently replaced;

2. by arranging the clamping assembly with a simple structure, the complicated process of disassembling the clamping assembly is omitted, and the convenience of operation is improved;

3. through the arrangement of the abutting module which can be detachably connected, the clamping assembly can be better suitable for workpieces of different shapes and sizes, multiple times of adjustment of the clamping assembly is avoided, and the measuring process is simpler and more convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of a measuring apparatus according to a first embodiment;

FIG. 2 is a schematic diagram of a moving assembly and a driving assembly according to a first embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a schematic view mainly illustrating a connection structure of the fastening module in the second embodiment.

In the figure, 1, a measuring table; 1A, supporting legs; 2. a placing table; 3. a moving assembly; 31. a sliding groove; 32. a drive shaft, 33, a drive gear; 34. a driven shaft; 35. a driven gear; 36. a drive chain; 4. a drive assembly; 41. a driven synchronizing gear; 42. a servo motor; 43. a driving synchronizing gear; 5. a guide rail; 6. a guide groove; 7. a groove; 71. a ball bearing; 8. clamping the assembly; 81. a fixed block; 82. a threaded rod; 821. connecting a bearing; 83. a fixing plate; 831. a recessed groove; 9. a tightening module; 10. a clamping groove; 11. a clamping block; 12. fixing the bolt; 13. A connecting plate; 14. a chute; 15. a slider; 16. adjusting a hand wheel; 18. fixing the bolt; 20. moving the support; 30. a measuring head.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1, for a three-coordinate measuring device disclosed in the present application, the three-coordinate measuring device includes a measuring table 1 horizontally disposed, a movable support 20 slidably connected to an upper surface of the measuring table 1, and a measuring head 30 disposed on the movable support 20, wherein four corners of a bottom surface of the measuring table 1 are integrally connected with support legs 1A, and the measuring head 30 is slidably connected to a top end of the movable support 20 along a length direction of the movable support 20.

Referring to fig. 1 and 2, a placing table 2 and a moving assembly 3 for moving the placing table 2 are provided on the upper surface of the measuring table 1. The placing table 2 is in a shape of a rectangular plate; the movable assembly 3 comprises a sliding groove 31 which is formed in the upper surface of the measuring table 1 and is in a cube shape, a driving shaft 32 which is rotatably connected to one end of the sliding groove 31 in the length direction through a bearing, a driving gear 33 which is fixedly arranged at the center of the outer side wall of the driving shaft 32, a driven shaft 34 which is rotatably connected to the other end of the sliding groove 31 in the length direction, a driven gear 35 which is fixedly arranged at the center of the outer side wall of the driven shaft 34, and a transmission chain 36 which is respectively meshed with the driving gear 33 and the driven gear 35, wherein the length direction of the sliding groove 31 is parallel to the length direction of the measuring table 1, the length direction of the sliding groove 31 is perpendicular to the length direction of the placing table.

Referring to fig. 1 and 2, two guide rails 5 are fixedly connected to the measuring table 1, the two guide rails 5 are respectively located on the upper surfaces of two sides of the sliding groove 31 in the length direction, two guide grooves 6 are formed in the bottom surface of the measuring table 1 corresponding to the guide rails 5, and the measuring table 1 is slidably connected to the guide rails 5 through the guide grooves 6 when sliding. Grooves 7 are formed in the upper surfaces of the two guide rails 5, the grooves 7 are formed in the length direction of the guide rails 5, a ball 71 is connected to each groove 7 in a rolling mode, and 3/4 of the ball 71 are located in each groove 7. The aforesaid is set for and has effectively reduced guide rail 5 and place the frictional force between the platform 2, still can guarantee to place the gentle steady operation of platform 2 when the work piece is overweight, makes things convenient for accommodation process.

Referring to fig. 1 and 2, a driving assembly 4 for driving the placing table 2 to move is further arranged on the measuring table 1, the driving assembly 4 comprises a driven synchronizing gear 41 fixedly sleeved on the outer side wall of one end of the driving shaft 32 in the length direction, a servo motor 42 fixedly connected to the upper surface of the measuring table 1 and a driving synchronizing gear 43 fixedly connected to the end portion of an output shaft of the servo motor 42, a circular groove for rotating the driven synchronizing gear 41 is reserved on the measuring table 1, and the driving synchronizing gear 43 and the driven synchronizing gear 41 are meshed with each other to form meshing transmission. When using, start servo motor 42, drive initiative synchronizing gear 43 and rotate, and then drive driven synchronizing gear 41 with it meshing and rotate, further drive driving shaft 32 and rotate, the rotational speed of servo motor 42's output shaft is adjustable, can drive driving shaft 32 and form different rotational speeds, and then control drive chain 36 and form different rotational speeds, and then the different speeds that move of platform 2 is placed in the control, and whole convenient control is conveniently controlled.

Referring to fig. 2 and 3, a module 8 is clamped on the measuring table 1; it includes fixed block 81 of fixed connection at placing platform 2 length direction both ends upper surface to press from both sides dress subassembly 8, the threaded rod 82 that two fixed block 81 set up is run through to the level respectively and set up respectively at threaded rod 82 towards the fixed plate 83 of placing platform 2 center one end, threaded rod 82 rotates the butt with fixed plate 83 towards the one end of fixed plate 83, specifically be at fixed plate 83 towards threaded rod 82 one side depressed groove 831, be equipped with connecting bearing 821 at the tip of fixed plate 83 of orientation of threaded rod 82, the outer lane fixed connection of connecting bearing 821 is in depressed groove 831, the inner circle fixed cover of connecting bearing 821 is established at the tip of threaded rod 82. And an adjusting hand wheel 16 is arranged at one end of each threaded rod 82 far away from the fixed plate 83, so that the adjustment is convenient.

Referring to fig. 3, sliding grooves 14 are provided on both upper surfaces of the placement table 2 in the longitudinal direction, sliders 15 are provided on the bottom surface of the fixed plate 83, and the fixed plate 83 is slidably coupled in the sliding grooves 14 by the sliders 15.

Referring to fig. 2 and 3, can dismantle in the one side that fixed plate 83 faces mutually and be connected with and support tight module 9, specifically do, vertically seted up a plurality of joint grooves 10 at the upper surface of fixed plate 83, be connected with a plurality of joint pieces 11 towards the one side an organic whole of fixed plate 83 supporting tight module 9, joint groove 10 establishes to the T-shaped groove, joint piece 11 establishes to the T-shaped piece, when the installation, supports tight module 9 and passes through the vertical joint of T-shaped piece in the T-shaped groove.

The implementation principle of the embodiment is as follows: when a workpiece needs to be installed, a corresponding abutting module 9 is determined according to the size and shape of the workpiece, the abutting module 9 is installed by utilizing the insertion fit of a T-shaped block and a T-shaped groove, the workpiece is placed on the placing table 2, the two threaded rods 82 are rotated to drive the fixing plate 83 to slide along the sliding groove 14, and then the abutting module 9 is driven to clamp and fix the workpiece;

starting a servo motor 42 to drive a driving synchronous gear 43 to rotate, further drive a driven synchronous gear 41 to rotate, further drive a driving shaft 32 to rotate, further drive a transmission chain 36 and a driven shaft 34 to rotate, further drive the placing table 2 to move along the length direction of the measuring table 1, finally move the placing table 2 to a corresponding position, and measure by using a three-coordinate measuring device;

when the reverse side of a workpiece needs to be measured, the servo motor 42 is started to drive the driving synchronous gear 43 to rotate, further drive the driven synchronous gear 41 to rotate, further drive the driving shaft 32 to rotate, further drive the transmission chain 36 and the driven shaft 34 to rotate, further drive the placing table 2 to run along the length direction of the measuring table 1, finally move the placing table 2 to one end of the measuring table 1 in the length direction, and the worker loosens the workpiece to perform subsequent operations such as turning and the like by operating the clamping assembly 8.

Example two

Referring to fig. 4, the difference from the first embodiment is that the tightening module 9 is L-shaped, a connecting plate 1713 is horizontally and integrally connected to the upper surface of the tightening module 9, a plurality of threaded holes 12 are formed along the upper surface of the fixing plate 83 in the longitudinal direction, and the connecting plate 1713 is connected to the fixing plate 83 by fixing bolts 18.

The implementation principle of the embodiment is as follows: the difference from the first embodiment is that the fastening module 9 is mounted by the fixing bolt 18.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A three-coordinate measuring device comprising a measuring table (1), characterized in that: the measuring table (1) is provided with a placing table (2) for placing a workpiece, and the measuring table (1) is provided with a moving assembly (3) for driving the placing table (2) to move;

the moving assembly (3) comprises a sliding groove (31) formed in the upper surface of the measuring table (1), a driving shaft (32) rotatably connected to one end of the sliding groove (31) in the length direction, a driving gear (33) fixedly sleeved on the outer side wall of the driving shaft (32), a driven shaft (34) rotatably connected to the other end of the sliding groove (31) in the length direction, a driven gear (35) fixedly sleeved on the outer side wall of the driven shaft (34) and a transmission chain (36) respectively engaged with the driving gear (33) and the driven gear (35), the central line of the sliding groove (31) is superposed with the central line of the measuring table (1), and the length direction of the sliding groove (31) is parallel to the length direction of the measuring table (1);

one end of the driving shaft (32) is provided with a driving assembly (4) for driving the driving shaft (32) to rotate, and the placing table (2) is fixedly connected to the transmission chain (36).

2. The three-coordinate measuring device of claim 1, wherein: the driving assembly (4) comprises a driven synchronizing gear (41) arranged at one end of the length direction of the driving shaft (32), a servo motor (42) arranged on the upper surface of the measuring table (1) and a driving synchronizing gear (43) arranged at the end part of an output shaft of the servo motor (42), wherein the driving synchronizing gear (43) is meshed with the driven synchronizing gear (41).

3. The three-coordinate measuring device of claim 1, wherein: the measuring table is characterized in that guide rails (5) are arranged on two sides of the upper surface of the measuring table (1) in the length direction of the sliding groove (31), guide grooves (6) are arranged at two ends of the length direction of the bottom surface of the placing table (2), and the guide grooves (6) are in sliding fit with the guide rails (5).

4. A coordinate measuring device according to claim 3, wherein: two a plurality of recesses (7) have all been seted up to the upper surface of guide rail (5), and is a plurality of recess (7) set up along the length direction interval of guide rail (5), every equal roll connection has ball (71) in recess (7).

5. The three-coordinate measuring device of claim 1, wherein: the placing table (2) is provided with a clamping assembly (8); press from both sides dress subassembly (8) including setting up fixed block (81) placing platform (2) upper surface length direction both ends, respectively the level run through threaded rod (82) that two fixed blocks (81) set up and set up fixed plate (83) of placing platform (2) center one end towards threaded rod (82) respectively, threaded rod (82) rotate the butt with fixed plate (83) towards the one end of fixed plate (83).

6. The three-coordinate measuring device of claim 5, wherein: the fixing plate (83) is detachably connected with a propping module (9), and one surface of the propping module (9) facing the workpiece is provided with various shapes.

7. The three-coordinate measuring device of claim 6, wherein: fixed plate (83) upper surface is vertical to be equipped with a plurality of joint grooves (10), support tight module (9) and be equipped with joint piece (11) towards the one side of fixed plate (83), the setting of joint piece (11) vertical joint cooperation joint groove (10).

8. The three-coordinate measuring device of claim 6, wherein: the upper surface of the fixing plate (83) is provided with a plurality of threaded holes, one surface, facing the fixing plate (83), of the abutting module (9) is provided with a connecting plate (13), and the connecting plate (13) is connected to the fixing plate (83) through a fixing bolt (12).

9. The three-coordinate measuring device of claim 5, wherein: the two sides of the length direction of the upper surface of the placing table (2) are provided with sliding grooves (14), the bottom of the fixing plate (83) is provided with a sliding block (15), and the sliding block (15) is connected in the sliding grooves (14) in a sliding mode.

10. The three-coordinate measuring device of claim 5, wherein: and an adjusting hand wheel (16) is arranged at one end of the threaded rod (82) far away from the center of the placing table (2).