High-precision gantry type measuring machine

Abstract

The utility model discloses a high-precision gantry type measuring machine, which belongs to the technical field of measuring machines, and comprises a machine table and a clamping assembly, the clamping assembly is arranged on the machine table, the clamping assembly comprises two rectangular clamping blocks, a V-shaped clamping block, a bidirectional screw rod and a motor, the two rectangular clamping blocks are symmetrically distributed on the machine table, the V-shaped clamping block is arranged on the machine table, and the bidirectional screw rod is arranged on the V-shaped clamping block. The V-shaped clamping blocks are detachably installed on the rectangular clamping blocks, the two V-shaped clamping blocks are oppositely arranged, the two-way screw rod is rotatably installed on the machine table, one ends of the two rectangular clamping blocks are connected to the two-way screw rod in a sleeving mode and are in threaded connection with the two-way screw rod, and the motor is fixedly installed on the side face of the machine table. An output shaft of the motor is fixedly connected with one end of the two-way screw rod; through the arrangement of the clamping assembly, a rectangular clamping block can be used for clamping and fixing a rectangular workpiece, and a V-shaped clamping block can be used for clamping and fixing a circular workpiece, so that the workpiece is kept stable, the workpiece is prevented from shaking easily, and the measurement precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring machines, and particularly relates to a high-precision gantry measuring machine. Background Art

[0002] The gantry measuring machine, also called a three-coordinate measuring machine, is widely used in industries such as machinery, electronics, instrumentation, and plastics. The three-coordinate measuring machine is one of the most effective methods for measuring and obtaining dimensional data. The function of the three-coordinate measuring machine is to quickly and accurately evaluate dimensional data and provide useful information about the production process status for the operator, which is very different from all manual measuring devices. By placing the object to be measured in the three-coordinate measuring space, the coordinate positions of each measuring point on the object to be measured can be obtained. According to the spatial coordinate values of these points, the geometric dimensions, shape, and position of the object to be measured can be calculated.

[0003] The existing Chinese patent with the publication number CN217155335U discloses a three-coordinate measuring machine, including a measuring platform. A guide rail is arranged on the upper surface of the measuring platform. An X-axis column is movably connected to the upper surface of the guide rail through a slider. A Y-axis column is arranged on the upper surface of the X-axis column. A column is arranged at one end of the Y-axis column. A Z-axis column is arranged on the outer surface of the Y-axis column. A fixing rod is arranged on the lower surface of the Z-axis column. A sleeve rod is arranged at one end of the fixing rod. A clamp is arranged on the outer surface of the sleeve rod. A probe is movably connected to the inside of the sleeve rod through the clamp. A screw rod is threadedly connected to the outer surface of the clamp through a sleeve plate.

[0004] Regarding the above related technology, the inventor found that at least the following problems exist in this technology: When measuring a workpiece, the workpiece lacks a stable clamping structure, resulting in the workpiece being prone to shaking and affecting the measurement accuracy. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision gantry measuring machine to solve the problems proposed in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A high-precision gantry measuring machine includes a machine table and a clamping assembly. The clamping assembly is arranged on the machine table. The clamping assembly includes rectangular clamping blocks, V-shaped clamping blocks, a bidirectional screw rod, and a motor. There are two rectangular clamping blocks, and the two rectangular clamping blocks are symmetrically distributed on the machine table. The V-shaped clamping blocks are detachably installed on the rectangular clamping blocks, and the two V-shaped clamping blocks are arranged oppositely. The bidirectional screw rod is rotatably installed on the machine table. One end of each of the two rectangular clamping blocks is sleeved on the bidirectional screw rod and is threadedly connected to the bidirectional screw rod. The motor is fixedly installed on the side of the machine table, and the output shaft of the motor is fixedly connected to one end of the bidirectional screw rod.

[0007] As a preferred embodiment, a gantry measuring mechanism is slidably mounted on the top of the machine table.

[0008] As a preferred embodiment, a frame is fixedly mounted at the bottom of the machine table.

[0009] As a preferred embodiment, the clamping assembly further includes a guide rod, the guide rod is fixedly mounted on the machine table, and the end of the rectangular clamping block away from the bidirectional screw is slidably sleeved on the guide rod.

[0010] As a preferred embodiment, two dovetail grooves are formed in the rectangular clamping block, two dovetail blocks are fixedly connected to both ends of the V-shaped clamping block, the dovetail blocks are inserted into the dovetail grooves, and a positioning rod is inserted into the top of the dovetail block.

[0011] As a preferred embodiment, a positioning groove adapted to the positioning rod is formed at the bottom of the dovetail groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For this high-precision gantry measuring machine, through the setting of the clamping assembly, when it is necessary to measure a rectangular workpiece, the workpiece can be placed between the rectangular clamping blocks, the motor is started to drive the bidirectional screw to rotate, so that the bidirectional screw drives the two rectangular clamping blocks to approach each other, and the rectangular clamping blocks clamp and fix the rectangular workpiece. When the workpiece to be measured is a circular workpiece, the V-shaped clamping block can be installed on the rectangular clamping block, and the V-shaped clamping block is used to clamp and fix the circular workpiece, so that the workpiece can be kept stable, avoiding the workpiece from being easily shaken, and improving the measurement accuracy;

[0014] For this high-precision gantry measuring machine, through the setting of the dovetail groove, dovetail block, positioning rod and positioning groove, when installing the V-shaped clamping block, the dovetail block of the V-shaped clamping block can be inserted into the dovetail groove of the rectangular clamping block, and then the positioning rod is passed through the dovetail block and inserted into the positioning groove, and it can be completed, which is convenient for the disassembly and assembly of the V-shaped clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the machine table of the present utility model;

[0017] Figure 3 is a schematic diagram of the disassembly structure of the V-shaped clamping block of the present utility model.

[0018] In the figure: 1. Machine platform; 11. Gantry measuring mechanism; 12. Frame; 2. Clamping assembly; 21. Rectangular clamping block; 211. Dovetail groove; 212. Positioning groove; 22. V-shaped clamping block; 221. Dovetail block; 222. Positioning rod; 23. Bi-directional screw; 24. Motor; 25. Guide rod. Detailed implementation manners

[0019] The following further describes the present utility model in conjunction with embodiments.

[0020] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement to the method of the present utility model under the premise of the concept of the present utility model belongs to the scope protected by the present utility model.

[0021] Please refer to Figures 1-3 , the present utility model provides a high-precision gantry measuring machine, including a machine platform 1 and a clamping assembly 2. A gantry measuring mechanism 11 is slidably installed on the top of the machine platform 1. The gantry measuring mechanism 11 is used for measuring workpieces. This is a well-known technology and will not be elaborated here. A frame 12 is fixedly installed at the bottom of the machine platform 1, and the machine platform 1 can be supported through the frame 12.

[0022] The clamping assembly 2 is arranged on the machine platform 1. The clamping assembly 2 includes a rectangular clamping block 21, a V-shaped clamping block 22, a bi-directional screw 23 and a motor 24. There are two rectangular clamping blocks 21, and the two rectangular clamping blocks 21 are symmetrically distributed on the machine platform 1. The V-shaped clamping block 22 is detachably installed on the rectangular clamping block 21, and the two V-shaped clamping blocks 22 are arranged oppositely. The bi-directional screw 23 is rotatably installed on the machine platform 1. The bi-directional screw 23 is horizontally arranged. One end of each of the two rectangular clamping blocks 21 is sleeved on the bi-directional screw 23 and is threadedly connected to the bi-directional screw 23. The motor 24 is fixedly installed on the side of the machine platform 1, and the output shaft of the motor 24 is fixedly connected to one end of the bi-directional screw 23. Through the setting of the clamping assembly 2, when it is necessary to measure a rectangular workpiece, the workpiece can be placed between the rectangular clamping blocks 21. Start the motor 24 to drive the bi-directional screw 23 to rotate, so that the bi-directional screw 23 drives the two rectangular clamping blocks 21 to approach each other, and the rectangular clamping blocks 21 clamp and fix the rectangular workpiece. When the workpiece to be measured is a circular workpiece, the V-shaped clamping block 22 can be installed on the rectangular clamping block 21, and the V-shaped clamping block 22 is used to clamp and fix the circular workpiece, which can keep the workpiece stable, avoid the workpiece from being easily shaken, and improve the measurement accuracy.

[0023] Among them, the clamping assembly 2 further includes a guide rod 25. The guide rod 25 is fixedly installed on the machine platform 1. One end of the rectangular clamping block 21 away from the bi-directional screw 23 is slidably sleeved on the guide rod 25. Through the setting of the guide rod 25, the rectangular clamping block 21 can be guided, and the stability of the rectangular clamping block 21 can be improved.

[0024] Among them, two dovetail grooves 211 are formed in the rectangular clamping block 21. Dovetail blocks 221 are fixedly connected to both ends of the V-shaped clamping block 22. The dovetail blocks 221 are inserted into the dovetail grooves 211. A positioning rod 222 is inserted into the top of the dovetail block 221. A positioning groove 212 adapted to the positioning rod 222 is formed at the bottom of the dovetail groove 211. Through the settings of the dovetail groove 211, the dovetail block 221, the positioning rod 222 and the positioning groove 212, when installing the V-shaped clamping block 22, the dovetail block 221 of the V-shaped clamping block 22 can be inserted into the dovetail groove 211 of the rectangular clamping block 21, and then the positioning rod 222 is passed through the dovetail block 221 and inserted into the positioning groove 212 to complete the installation, which is convenient for the disassembly and assembly of the V-shaped clamping block 22.

[0025] The working principle and usage process of the present utility model are as follows: First, through the setting of the clamping assembly 2, when it is necessary to measure a rectangular workpiece, the workpiece can be placed between the rectangular clamping blocks 21, and the motor 24 is started to drive the bidirectional screw 23 to rotate, so that the bidirectional screw 23 drives the two rectangular clamping blocks 21 to approach each other, and the rectangular clamping blocks 21 clamp and fix the rectangular workpiece. When the workpiece to be measured is a circular workpiece, the V-shaped clamping block 22 can be installed on the rectangular clamping block 21, and the V-shaped clamping block 22 is used to clamp and fix the circular workpiece, so that the workpiece can be kept stable, avoiding the workpiece from being easily shaken, and improving the measurement accuracy.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision gantry measuring machine, comprising a machine platform (1) and a clamping assembly (2), characterized in that: The clamping assembly (2) is arranged on the machine platform (1), and the clamping assembly (2) comprises a rectangular clamping block (21), a V-shaped clamping block (22), a bidirectional screw (23) and a motor (24). There are two rectangular clamping blocks (21), and the two rectangular clamping blocks (21) are symmetrically distributed on the machine platform (1). The V-shaped clamping block (22) can be detachably mounted on the rectangular clamping block (21), and the two V-shaped clamping blocks (22) are arranged opposite to each other. The bidirectional screw (23) is rotatably mounted on the machine platform (1), and one end of the two rectangular clamping blocks (21) is sleeved on the bidirectional screw (23) and is threadedly connected to the bidirectional screw (23). The motor (24) is fixedly mounted on the side of the machine platform (1), and the output shaft of the motor (24) is fixedly connected to one end of the bidirectional screw (23).

2. A high-precision gantry measuring machine according to claim 1, characterized in that: A gantry-type measuring mechanism (11) is slidably mounted on the top of the machine platform (1).

3. A high-precision gantry measuring machine according to claim 1, characterized in that: A frame (12) is fixedly mounted on the bottom of the machine platform (1).

4. A high-precision gantry measuring machine according to claim 1, characterized in that: The clamping assembly (2) further comprises a guide rod (25) which is fixedly mounted on the machine platform (1), and one end of the rectangular clamping block (21) away from the bidirectional screw rod (23) is slidably sleeved on the guide rod (25).

5. The high-precision gantry measuring machine according to claim 1, characterized in that: The rectangular clamping block (21) is provided with two dovetail grooves (211), both ends of the V-shaped clamping block (22) are fixedly connected with dovetail blocks (221), the dovetail blocks (221) are inserted into the dovetail grooves (211), and a positioning rod (222) is inserted into the top of the dovetail block (221).

6. A high-precision gantry measuring machine according to claim 5, characterized in that: A positioning groove (212) adapted to the positioning rod (222) is provided at the bottom of the dovetail groove (211).

Images