CN222627706U - Three-coordinate inspection fixture - Google Patents

Abstract

The three-coordinate detection clamp comprises a detection table, wherein the upper end face of the detection table is provided with a mounting plate, one end of the mounting plate is provided with a first connecting seat and a second connecting seat which are arranged in parallel from outside to inside, a clamping assembly used for placing and fixing a workpiece to be detected is hinged to the second connecting seat, a pull rod assembly used for fixing the clamping assembly is arranged on the first connecting seat, and a support column matched with the clamping assembly is arranged in the middle of the mounting plate. The workpiece can be fixed through the clamping assembly, the stability of the workpiece when the three-coordinate measuring instrument is used for measuring is guaranteed, the workpiece is prevented from being offset, the measuring precision is improved, meanwhile, the clamping assembly can rotate, the workpiece can be in two states to be measured, various data of the upper end face and the side face of the workpiece can be measured, and the data measurement of the workpiece is more comprehensive.

Description

Three-coordinate detection clamp

Technical Field

The utility model relates to the technical field of automobile part detection equipment, in particular to a three-coordinate detection clamp.

Background

In the field of manufacturing automobile parts, three-coordinate measuring machines are generally used to perform spot inspection on parts in batches, a detector of each three-coordinate measuring machine can move on three mutually perpendicular guide rails, the detector transmits signals in a contact or non-contact mode, a displacement measuring system (such as a grating ruler) of three shafts is used for calculating each point (x, y, z) and each function of a workpiece through a data processor or a computer and the like and is used for measuring various precision of the automobile parts, such as dimensional precision, positioning precision, geometric precision, contour precision and the like, whether the automobile parts meet factory requirements is detected, for example, a three-coordinate detector is used in the production of an automobile engine cylinder cover body, for example, a three-coordinate measuring device is disclosed in patent CN220104042U, and comprises a measuring device body, a support structure is arranged at a position, close to four corners, a workbench is fixedly arranged on the upper surface of the measuring device body, a sliding rail is fixedly arranged on the other end surface of the workbench, a portal frame is slidingly arranged on the sliding rail, a walking frame is slidingly arranged on the portal frame, a walking frame is fixedly arranged on the walking frame, and a measuring device is fixedly arranged on the surface of the walking frame and is arranged on the sliding frame. During detection, the workpiece to be detected is directly placed on the placing plate to carry out three-coordinate measurement, and the workpiece is easy to deviate due to lack of fixed support in the measurement process, so that the measurement effect is affected.

Disclosure of utility model

In order to achieve the purpose, the three-coordinate detection clamp comprises a detection table, wherein the upper end face of the detection table is provided with a mounting plate, one end of the mounting plate is provided with a first connecting seat and a second connecting seat which are arranged in parallel from outside to inside, the second connecting seat is hinged with a clamping assembly used for placing and fixing a workpiece to be detected, the first connecting seat is provided with a pull rod assembly used for fixing the clamping assembly, and the middle part of the mounting plate is provided with a support column matched with the clamping assembly.

Further, the clamping assembly comprises a U-shaped placing block matched with the shape of the workpiece to be detected, a connecting block is arranged on the U-shaped bottom surface of the U-shaped placing block, connecting shafts are arranged at two ends of the connecting block, and the connecting shafts are rotationally connected with the second connecting seat through bearings.

Further, the clamping assembly further comprises positioning columns, the positioning columns are arranged on the left side and the right side of the upper end face of the U-shaped placing block symmetrically, spanner assemblies corresponding to the positioning columns one to one are further arranged on the left side and the right side of the upper end face of the U-shaped placing block respectively, each spanner assembly comprises a base, a handle rod, a connecting rod and a pressing rod, the base is fixedly arranged on the upper end face of the U-shaped placing block, the middle portion of the handle rod is hinged to the base, one end of the handle rod is hinged to one end of the connecting rod, the middle portion of the connecting rod is hinged to the base, the other end of the connecting rod is fixedly connected with one end of the pressing rod in a bolt connection mode, and the other end of the pressing rod is provided with a positioning hole matched with the positioning columns.

Further, the pull rod assembly comprises a threaded rod, external threads are formed in the outer wall of the threaded rod, threaded holes are formed in the upper portion of the first connecting seat and the upper portion of the connecting block, internal threads matched with the threaded rod are formed in the threaded holes, and when the U-shaped placing block rotates to be parallel to the first connecting seat, the two threaded holes are coaxial.

Compared with the prior art, the utility model has the advantages that:

The workpiece can be fixed through the clamping assembly, the stability of the workpiece when the three-coordinate measuring instrument is used for measuring is guaranteed, the workpiece is prevented from being offset, the measuring precision is improved, meanwhile, the clamping assembly can rotate, the workpiece can be in two states to be measured, various data of the upper end face and the side face of the workpiece can be measured, and the data measurement of the workpiece is more comprehensive.

Drawings

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

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

fig. 3 is a schematic structural view of a wrench assembly.

The device comprises a detection table 1, a mounting plate 2, a first connecting seat 3, a second connecting seat 4, a supporting column 5, a U-shaped placing block 6, a connecting block 7, a connecting block 8, a connecting shaft 9, a positioning column 10, a base 11, a handle rod 12, a connecting rod 13, a pressing rod 14, a positioning hole 15 and a threaded rod.

Detailed Description

The present utility model will be further described below.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, based on the embodiments of the application, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the application.

Please refer to fig. 1-3

A three-coordinate detection clamp comprises a detection table 1, wherein the detection table 1 is placed under a probe of an existing three-coordinate detector, a mounting plate 2 is arranged on the upper end face of the detection table 1, a first connecting seat 3 and a second connecting seat 4 are arranged in parallel from outside to inside at one end of the mounting plate 2, the first connecting seat 3 and the second connecting seat 4 are vertically arranged on the mounting plate, the end faces of the first connecting seat 3 and the second connecting seat 4 are attached, a U-shaped notch is formed in the upper portion of the second connecting seat 4, a clamping component used for placing and fixing a workpiece to be detected is hinged in the U-shaped notch, when the clamping component is rotated, the workpiece is in two states to be detected, wherein the first state to be detected is a state that the upper end face of the workpiece is parallel to the mounting plate 2, various precision data of the upper end face of the workpiece are measured, the second state to be detected is a state that the upper end face of the workpiece is perpendicular to the mounting plate 2, various precision data of the side faces of the workpiece are measured in the state, a clamping component used for fixing the clamping component is attached to the end face of the second connecting seat 4, a clamping component is arranged in the first connecting seat 4, a clamping component is used for fixing the clamping component, a supporting component can be provided, and the clamping component is used for supporting the workpiece 5 is in the clamping component is in the state of the clamping component to be held by the middle of the clamping component through the second component, and can be guaranteed, and the supporting component is stable when the clamping component is in the state when the clamping component is held by the supporting component is in the clamping component.

The clamping assembly comprises a U-shaped placing block 6 matched with the appearance of a workpiece to be tested, a connecting block 7 is arranged on the U-shaped bottom surface of the U-shaped placing block 6, connecting shafts 8 are arranged at two ends of the connecting block 7, the connecting shafts 8 are rotatably connected with the second connecting seat 4 through bearings, specifically, as shown in fig. 1, the length of the connecting block 7 is matched with a U-shaped notch on the second connecting seat 4, the bearings are embedded on the left side and the right side of the U-shaped notch, and the connecting shafts 8 on the left side and the right side of the connecting block 7 are respectively connected into the corresponding bearings, so that the U-shaped placing block 6 can conveniently rotate, and the workpiece can be converted between two test states.

The clamping assembly further comprises positioning columns 9, the positioning columns 9 are arranged on the left side and the right side of the upper end face of the U-shaped placing block 6 in a symmetrical mode, specifically, as shown in fig. 1 and 3, convex edges are arranged at the upper ends of the workpieces, the convex edges are provided with a plurality of machining holes, the diameter of the upper portions of the positioning columns 9 is matched with the diameter of the machining holes, the diameter of the lower portions of the positioning columns 9 is larger than the diameter of the upper portions of the positioning columns, that is, after the upper portions of the positioning columns 9 are inserted into the machining holes, the lower end faces of the convex edges can be clung to the junction faces of the upper portions and the lower portions of the positioning columns 9, and the workpiece is placed.

The left and right sides of the up end of the U-shaped placing block 6 are also respectively provided with a spanner component corresponding to the positioning columns 9 one by one, the spanner component is used for pressing down workpieces, the workpieces are pressed between the positioning columns 9 and the spanner component, and specifically, as shown in fig. 3, the spanner component comprises a base 10, a handle rod 11, a connecting rod 12 and a pressing rod 13, the base 10 is fixedly arranged on the up end of the U-shaped placing block 6, the middle part of the handle rod 11 is hinged with the base 10, one end of the handle rod 11 is hinged with one end of the connecting rod 12, the middle part of the connecting rod 12 is hinged with the base 10, the other end of the connecting rod 12 is fixedly connected with one end of the pressing rod 13 in a bolt connection mode, and the other end of the pressing rod 13 is provided with a positioning hole 14 matched with the upper part of the positioning column 9. As shown in FIG. 3, the base 10, the handle bar 11 and the connecting bar 12 form a double-rocker mechanism, and the structure is similar to that of the existing quick clamp, when the handle bar 11 is pulled upwards, the handle bar 11 rotates around a hinge point with the base, one end of the handle bar 11 connected with the connecting bar 12 rotates downwards, so that the connecting bar 12 can be driven to rotate around the base 10, one end of the connecting bar 12 connected with the pressing bar 13 moves upwards, at the moment, the positioning column 9 is not inserted into the positioning hole 14 to facilitate the taking of a workpiece, when the workpiece is required to be fixed, the handle bar 11 is pulled downwards, the connecting bar 12 rotates reversely with the pressing bar 13, and the positioning hole 14 on the pressing bar 13 is sleeved on the upper part of the positioning column 9, so that the workpiece is tightly pressed.

The pull rod assembly comprises a threaded rod 15, external threads are formed in the outer wall of the threaded rod 15, threaded holes are formed in the upper portion of the first connecting seat 3 and the upper portion of the connecting block 7, internal threads matched with the threaded rod 15 are formed in the threaded holes, when the U-shaped placing block 6 rotates to be parallel to the first connecting seat 3, the two threaded holes are coaxial, at the moment, the threaded rod 15 can be screwed into the threaded holes in the connecting block 7, and then the fixing of the position of the U-shaped placing block 6 is achieved.

While the principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to assist in understanding the principles and concepts of the utility model, variations and modifications of the utility model are possible in light of the teachings of this utility model and its application to those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims, and it is intended that all such modifications and variations be interpreted as do not limit the utility model.

Claims (4)

1. The three-coordinate detection clamp is characterized by comprising a detection table (1), wherein the upper end face of the detection table (1) is provided with a mounting plate (2), one end of the mounting plate (2) is provided with a first connecting seat (3) and a second connecting seat (4) which are arranged in parallel from outside to inside, the second connecting seat (4) is hinged with a clamping assembly used for placing and fixing a workpiece to be detected, the first connecting seat (3) is provided with a pull rod assembly used for fixing the clamping assembly, and the middle part of the mounting plate (2) is provided with a support column (5) matched with the clamping assembly.

2. The three-coordinate detecting clamp as claimed in claim 1, wherein the clamping assembly comprises a U-shaped placing block (6) which is matched with the shape of a workpiece to be detected, a connecting block (7) is arranged on the U-shaped bottom surface of the U-shaped placing block (6), connecting shafts (8) are arranged at two ends of the connecting block (7), and the connecting shafts (8) are rotatably connected with the second connecting seat (4) through bearings.

3. The three-coordinate detecting clamp as claimed in claim 2, wherein the clamping assembly further comprises positioning columns (9), the positioning columns (9) are arranged at the left side and the right side of the upper end face of the U-shaped placing block (6) symmetrically, spanner assemblies which are in one-to-one correspondence with the positioning columns (9) are further arranged at the left side and the right side of the upper end face of the U-shaped placing block (6) respectively, the spanner assemblies comprise bases (10), handle bars (11), connecting rods (12) and pressing rods (13), the bases (10) are fixedly arranged on the upper end face of the U-shaped placing block (6), the middle parts of the handle bars (11) are hinged with the bases (10), one ends of the handle bars (11) are hinged with one ends of the connecting rods (12), the middle parts of the connecting rods (12) are hinged with the bases (10), the other ends of the connecting rods (12) are fixedly connected with one ends of the pressing rods (13) in a bolt connection mode, and the other ends of the pressing rods (13) are provided with positioning holes (14) which are matched with the positioning columns (9).

4. The three-coordinate detecting clamp as set forth in claim 2, wherein the pull rod assembly comprises a threaded rod (15), external threads are formed on the outer wall of the threaded rod (15), threaded holes are formed in the upper portion of the first connecting seat (3) and the upper portion of the connecting block (7), internal threads matched with the threaded rod (15) are formed in the threaded holes, and when the U-shaped placing block (6) rotates to be parallel to the first connecting seat (3), the two threaded holes are coaxial.