CN223834378U

CN223834378U - A positioning fixture for a coordinate measuring machine

Info

Publication number: CN223834378U
Application number: CN202520410495.9U
Authority: CN
Inventors: 赵爱国; 田晓明
Original assignee: Jilin Hengjiu Machinery Co ltd
Current assignee: Jilin Hengjiu Machinery Co ltd
Priority date: 2025-03-11
Filing date: 2025-03-11
Publication date: 2026-01-27
Anticipated expiration: 2035-03-11

Abstract

The utility model provides a positioning fixture tool for a three-coordinate measuring machine, which relates to the technical field of positioning fixtures, and comprises a base, wherein two side surfaces of the base are respectively connected with a fixed plate, the base can be arranged at a proper position on the three-coordinate measuring machine through the fixed plates, at least one group of clamping components are movably arranged on the base, each clamping component comprises a mounting seat movably arranged on the base, one side of each mounting seat is provided with a mounting plate with an adjustable angle, the position and the angle of a workpiece positioning structure connected with the mounting plate and a rotating plate can be adjusted, the contact area between the workpiece positioning structure and a special-shaped workpiece is increased through a plurality of workpiece positioning structures, the positioning and clamping operation can be carried out on a plurality of points of the special-shaped workpiece, and the stability of the special-shaped workpiece is ensured, so that the situation that the special-shaped workpiece is deviated in the measuring process through the three-coordinate measuring machine is avoided, and the measuring precision is ensured.

Description

Positioning fixture tool for three-coordinate measuring machine

Technical Field

The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture tool for a three-coordinate measuring machine.

Background

Three-dimensional measuring machines are widely used in the mechanical, electronic, instrumentation, plastic and other industries, and are one of the most efficient methods of measuring and obtaining dimensional data because they can replace a variety of surface measuring tools and expensive combination gauges and reduce the time required for complex measuring tasks from hours to minutes. In the three-coordinate measuring machine, a positioning clamp is needed, the workpiece is clamped and fixed through the positioning clamp, the situation that the workpiece moves or deforms in the measuring process is avoided, and the measuring precision is ensured.

The existing positioning fixture tool generally clamps the workpiece to be measured through members such as a fastening screw and a compression block, and the like, so that although the workpiece can be stably clamped, when the workpiece faces the special-shaped workpiece, the contact area between the compression block and the special-shaped workpiece is small when the special-shaped workpiece is clamped through the compression block, so that the position of the special-shaped workpiece is easy to deviate in the measuring process of a three-coordinate measuring machine, and the measuring precision is affected.

Disclosure of utility model

The utility model aims to provide a positioning fixture tool for a three-coordinate measuring machine, and aims to solve the problems in the prior art.

In order to achieve the above object, an embodiment of an aspect of the present utility model provides a positioning fixture tool for a three-coordinate measuring machine, including a base, on which at least one group of clamping assemblies is movably mounted, the clamping assemblies include a mounting seat movably mounted on the base, one side of the mounting seat is provided with a mounting plate with an adjustable angle, the end of the mounting plate is rotatably connected with a rotating plate, the mounting plate and the rotating plate are provided with multiple groups of tightening clamping structures, an adjusting structure for adjusting the angle of the rotating plate is disposed between the mounting plate and the rotating plate, the adjusting structure is adjustable along the length direction of the mounting plate through a displacement adjusting structure, one end of the adjusting structure is hinged with the mounting plate through the displacement adjusting structure, the length of the adjusting structure can be adjusted, and the other end of the adjusting structure is hinged with the rotating plate.

Preferably, the adjusting structure comprises a shell structure, an extension rod is connected in the shell structure in a sliding manner, the end part of the extension rod is hinged to the rotating plate, a plurality of adjusting jacks are formed in one side of the extension rod, a plurality of adjusting bolts matched with the adjusting jacks in size are connected to one side of the shell structure in a threaded manner, the adjusting bolts are inserted into the adjusting jacks, and adjusting nuts are connected to the outer surfaces of the adjusting bolts in a threaded manner.

Preferably, the displacement adjusting structure comprises a sliding rail arranged on the mounting plate, a plurality of fixing holes are formed in the top side of the sliding rail, a sliding seat which can move along the length direction of the sliding rail and is hinged with the shell structure is connected to the sliding rail in a sliding mode, a fixing bolt matched with the size of the fixing holes is connected to one side of the sliding seat in a threaded mode, and the fixing bolt is connected to the inside of the fixing holes in a threaded mode.

Preferably, the jacking and clamping structure comprises an installation sleeve with a hollow structure, a detachable movable rod is arranged in the installation sleeve, and a detachable clamping head structure is arranged on the movable rod.

Preferably, one end fixedly connected with clamping rod of movable rod, clamping rod runs through the installation sleeve and with installation sleeve sliding connection, the one end fixedly connected with of clamping rod is located the inside fixed spring of installation sleeve, the one end fixedly connected with cross section shape that clamping rod was kept away from to fixed spring is the installation stopper of T shape, installation stopper and installation sleeve threaded connection, just movable rod runs through and with installation stopper sliding connection.

Preferably, the clamping head structure comprises a connecting threaded rod in threaded connection with the movable rod, and the end part of the connecting threaded rod is fixedly connected with a semicircular clamping head.

Preferably, the bottom side fixedly connected with locking threaded rod of mount pad, locking threaded rod's surface threaded connection has butterfly lock nut, be provided with the fixed knot who is connected with the mounting panel on the locking threaded rod.

Preferably, the fixed knot constructs including dwang and seting up the support jack on the mount pad, the dwang runs through the mount pad and can rotate with the mount pad and be connected, the tip position and the mounting panel fixed connection of dwang, the tip fixedly connected with stopper of dwang, one side threaded connection of stopper has the supporting bolt corresponding with the support jack position, supporting bolt and support jack threaded connection.

Preferably, the base comprises a frame and a supporting mesh plate arranged on the frame, the locking threaded rod is inserted into meshes formed in the supporting mesh plate, and the maximum diameter of the locking threaded rod is matched with the diameter of the meshes formed in the supporting mesh plate.

The beneficial effects of the utility model are as follows:

1. The position and the angle of the workpiece positioning structure connected with the mounting plate and the rotating plate can be adjusted, the contact area with the special-shaped workpiece is increased through the workpiece positioning structures, the positioning and clamping operation can be carried out on a plurality of points of the special-shaped workpiece, the stability of the special-shaped workpiece is ensured, the situation that the position of the special-shaped workpiece is deviated in the measuring process through a three-coordinate measuring machine is avoided, and the measuring precision is ensured.

2. Installation stopper and installation sleeve threaded connection for installation and dismantlement installation stopper's operation is comparatively simple and convenient, connects threaded rod and movable rod threaded connection, makes the installation with dismantle the operation of pressing from both sides tight head comparatively simple and convenient, thereby be convenient for install and dismantle the movable rod and be convenient for shift out fixed spring from installation sleeve's inside, be convenient for change the operation when fixed spring's elasticity reduces or damages, thereby guarantee that follow-up can be stable to press from both sides tight operation to the work piece.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an unassembled base of the present utility model;

FIG. 3 is a schematic view of the unassembled mounting base of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic cross-sectional view of the present utility model;

fig. 5 is a schematic structural view of the mounting base and the connecting member thereof according to the present utility model.

In the figure, 10-base, 11-frame, 12-supporting mesh plate, 30-mounting seat, 31-locking threaded rod, 32-butterfly locking nut, 33-fixed structure, 331-rotating rod, 332-supporting jack, 333-limiting block, 334-supporting bolt, 40-mounting plate, 50-sliding rail, 51-fixed hole, 52-sliding seat, 53-fixed bolt, 60-rotating plate, 70-mounting sleeve, 71-movable rod, 72-clamping head structure, 721-connecting threaded rod, 722-clamping head, 73-clamping rod, 74-fixed spring, 75-mounting plug, 80-adjusting structure, 81-shell structure, 82-extending rod, 83-adjusting jack and 84-adjusting bolt.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a positioning fixture tool for a three-coordinate measuring machine comprises a base 10, two side surfaces of the base 10 are respectively connected with a fixing plate, the base 10 can be installed at a proper position on the three-coordinate measuring machine through the fixing plates, at least one group of clamping components are movably installed on the base 10, each clamping component comprises an installation seat 30 movably installed on the base 10, one side of each installation seat 30 is provided with an angle-adjustable installation plate 40, the end parts of each installation plate 40 are rotatably connected with a rotating plate 60, the installation plates 40 and the rotating plates 60 are respectively provided with a plurality of groups of jacking clamping structures, an adjusting structure 80 for adjusting the angle of the rotating plate 60 is arranged between each installation plate 40 and each rotating plate 60, the adjusting structure 80 can be adjusted along the length direction of the installation plate 40 through a displacement adjusting structure, one end of each adjusting structure 80 is hinged with the installation plate 40 through the displacement adjusting structure, and the other end of each adjusting structure 80 is hinged with the rotating plate 60.

The adjusting structure 80 comprises a shell structure 81, an extending rod 82 is slidably connected in the shell structure 81, the end part of the extending rod 82 is hinged with the rotating plate 60, a plurality of adjusting jacks 83 are formed in one side of the extending rod 82, a plurality of adjusting jacks 83 are uniformly distributed on one side of the extending rod 82, a plurality of adjusting bolts 84 which are matched with the adjusting jacks 83 in size are connected to one side of the shell structure 81 in a threaded manner, the adjusting bolts 84 are inserted into the adjusting jacks 83, adjusting nuts are connected to the outer surfaces of the adjusting bolts 84 in a threaded manner, the adjusting bolts 84 are inserted into the adjusting jacks 83 at different positions and are in threaded connection with the adjusting bolts 84 through the adjusting nuts, the adjusting bolts 84 are tightly attached to the shell structure 81, the extending rod 82 can be fixed after the extending rod 82 extends out of the shell structure 81 for a proper length, the displacement adjustment structure comprises a sliding rail 50 arranged on a mounting plate 40, the length direction of the sliding rail 50 is parallel to the length direction of the mounting plate 40, a plurality of fixing holes 51 are formed in the top side of the sliding rail 50, the plurality of fixing holes 51 are uniformly distributed in the top side of the sliding rail 50, a sliding seat 52 which can move along the length direction of the sliding rail 50 and is hinged to a shell structure 81 is slidably connected to the sliding rail 50, a fixing bolt 53 which is matched with the fixing holes 51 in size is connected to one side of the sliding seat 52 in a threaded manner, the fixing bolt 53 is connected to the inside of the fixing holes 51 in a threaded manner, the sliding seat 52 can be fixed at a proper position through the fixing bolts 53, and a proper angle between a rotating plate 60 and the mounting plate 40 can be adjusted through adjusting the position of the sliding seat 52 and the extending length of an extending rod 82.

The jacking clamping structure comprises a mounting sleeve 70 with a hollow structure inside, a detachable movable rod 71 is arranged inside the mounting sleeve 70, a detachable clamping head structure 72 is arranged on the movable rod 71, one end of the movable rod 71 is fixedly connected with a clamping rod 73, the clamping rod 73 penetrates through the mounting sleeve 70 and is slidably connected with the mounting sleeve 70, one end of the clamping rod 73 is fixedly connected with a fixed spring 74 positioned inside the mounting sleeve 70, one end of the fixed spring 74, which is far away from the clamping rod 73, is fixedly connected with a mounting plug 75 with a T-shaped cross section, the mounting plug 75 is in threaded connection with the mounting sleeve 70, the movable rod 71 penetrates through and is slidably connected with the mounting plug 75, the end of the movable rod 71 is fixedly connected with a knob, the movable rod 71 is conveniently pulled to move through the knob, the clamping head structure 72 comprises a connecting threaded rod 721 in threaded connection with the movable rod 71, the end of the connecting threaded rod 721 is fixedly connected with a clamping head 722 with a semicircular shape, the clamping head 722 is connected with the connecting threaded rod 721, the clamping head 722 is convenient to install and detach the clamping head 722, the mounting plug 75 is convenient to operate, and the mounting plug 75 is convenient to detach the mounting plug 75, and the mounting plug can conveniently move out of the mounting sleeve 70 from the inside.

The bottom side fixedly connected with locking threaded rod 31 of mount pad 30, the surface threaded connection of locking threaded rod 31 has butterfly lock nut 32, be provided with the fixed knot who is connected with mounting panel 40 on the locking threaded rod 31 constructs 33, fixed knot constructs 33 including dwang 331 and setups the support jack 332 on mount pad 30, dwang 331 runs through mount pad 30 and can rotate with mount pad 30 and be connected, the tip position and the mounting panel 40 fixed connection of dwang 331, the tip fixedly connected with stopper 333 of dwang 331, the one side threaded connection of stopper 333 has the supporting bolt 334 corresponding with the supporting jack 332 position, a plurality of supporting jack 332 is distributed about the dwang 331 circumference array, supporting bolt 334 and supporting jack 332 threaded connection are connected through supporting bolt 334 and the supporting jack 332 of different positions, can fix mounting panel 40 at suitable angle.

The base 10 includes frame 11 and installs the support mesh board 12 in frame 11, and locking threaded rod 31 pegging graft inside the mesh of seting up on support mesh board 12, and the maximum diameter of locking threaded rod 31 and the mesh diameter looks adaptation of seting up on support mesh board 12 peg graft mutually with the mesh of the different positions on the support mesh board 12 through locking threaded rod 31, then make butterfly lock nut 32 and locking threaded rod 31 threaded connection to make butterfly lock nut 32 and the bottom side laminating of support mesh board 12 inseparable, can fix mount pad 30 suitable position on support mesh board 12.

The working principle is as follows:

The rotating plate 60 and the mounting plate 40 are adjusted to a proper angle through the adjusting structure 80 and the displacement adjusting structure, the mounting plate 40 is adjusted to rotate to a proper angle through the fixing structure 33 on the mounting seat 30, the mounting seat 30 is fixed at a proper position through the locking threaded rod 31 and the butterfly-shaped locking nut 32, finally, the workpiece is clamped and fixed through the jacking clamping structure, the contact point positions and the contact point areas with the special-shaped workpiece are increased through the plurality of groups of jacking clamping structures, and therefore the clamping operation is stably carried out on the special-shaped workpiece.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A positioning fixture tool for a three-coordinate measuring machine is characterized by comprising a base (10), wherein at least one group of clamping assemblies are movably mounted on the base (10), each clamping assembly comprises a mounting seat (30) movably mounted on the base (10), one side of each mounting seat (30) is provided with a mounting plate (40) with an adjustable angle, the end parts of each mounting plate (40) are rotatably connected with a rotating plate (60), the mounting plates (40) and the rotating plates (60) are respectively provided with a plurality of groups of jacking clamping structures, an adjusting structure (80) for adjusting the angle of each rotating plate (60) is arranged between each mounting plate (40) and each rotating plate (60), the adjusting structure (80) can be adjusted along the length direction of each mounting plate (40) through a displacement adjusting structure, one end of each adjusting structure (80) is hinged with each mounting plate (40) through a displacement adjusting structure, and the other end of each adjusting structure (80) is hinged with each rotating plate (60).

2. The positioning fixture tool for a three-coordinate measuring machine according to claim 1, wherein the adjusting structure (80) comprises a shell structure (81), an extending rod (82) is connected in a sliding manner in the shell structure (81), the end portion of the extending rod (82) is hinged to the rotating plate (60), a plurality of adjusting jacks (83) are formed in one side of the extending rod (82), a plurality of adjusting bolts (84) which are matched with the adjusting jacks (83) in size are connected to one side of the shell structure (81) in a threaded manner, the adjusting bolts (84) are inserted into the adjusting jacks (83), and adjusting nuts are connected to the outer surface of the adjusting bolts (84) in a threaded manner.

3. The positioning fixture tool for a three-coordinate measuring machine according to claim 2, wherein the displacement adjusting structure comprises a sliding rail (50) arranged on the mounting plate (40), a plurality of fixing holes (51) are formed in the top side of the sliding rail (50), a sliding seat (52) capable of moving along the length direction of the sliding rail (50) and hinged to the shell structure (81) is connected to the sliding rail (50) in a sliding mode, a fixing bolt (53) matched with the fixing holes (51) in size is connected to one side of the sliding seat (52) in a threaded mode, and the fixing bolt (53) is connected to the inside of the fixing holes (51) in a threaded mode.

4. A positioning fixture for a three-dimensional measuring machine as set forth in claim 2, wherein said holding-up and holding-down structure comprises a mounting sleeve (70) having a hollow interior, a detachable movable rod (71) is provided in said mounting sleeve (70), and a detachable clamping head structure (72) is provided on said movable rod (71).

5. The positioning fixture tool for a three-coordinate measuring machine according to claim 4, wherein one end of the movable rod (71) is fixedly connected with a clamping rod (73), the clamping rod (73) penetrates through the mounting sleeve (70) and is in sliding connection with the mounting sleeve (70), one end of the clamping rod (73) is fixedly connected with a fixed spring (74) located inside the mounting sleeve (70), one end of the fixed spring (74) away from the clamping rod (73) is fixedly connected with a mounting plug (75) with a T-shaped cross section, the mounting plug (75) is in threaded connection with the mounting sleeve (70), and the movable rod (71) penetrates through and is in sliding connection with the mounting plug (75).

6. The fixture tool for a three-dimensional measuring machine according to claim 5, wherein the clamping head structure (72) comprises a connecting threaded rod (721) in threaded connection with the movable rod (71), and a clamping head (722) in a semicircular shape is fixedly connected to the end of the connecting threaded rod (721).

7. The positioning fixture tool for a three-coordinate measuring machine according to claim 5, wherein a locking threaded rod (31) is fixedly connected to the bottom side of the mounting seat (30), a butterfly-shaped locking nut (32) is connected to the outer surface of the locking threaded rod (31) in a threaded mode, and a fixing structure (33) connected with the mounting plate (40) is arranged on the locking threaded rod (31).

8. The fixture tool for a three-dimensional measuring machine according to claim 7, wherein the fixing structure (33) comprises a rotating rod (331) and a supporting jack (332) formed in the mounting seat (30), the rotating rod (331) penetrates through the mounting seat (30) and can be rotationally connected with the mounting seat (30), the end portion of the rotating rod (331) is fixedly connected with the mounting plate (40), a limiting block (333) is fixedly connected with the end portion of the rotating rod (331), one side of the limiting block (333) is in threaded connection with a supporting bolt (334) corresponding to the position of the supporting jack (332), and the supporting bolt (334) is in threaded connection with the supporting jack (332).

9. The positioning fixture tool for the three-coordinate measuring machine, as set forth in claim 8, wherein the base (10) comprises a frame (11) and a supporting mesh plate (12) arranged on the frame (11), the locking threaded rod (31) is inserted into a mesh opening formed in the supporting mesh plate (12), and the maximum diameter of the locking threaded rod (31) is matched with the diameter of the mesh opening formed in the supporting mesh plate (12).