Cantilever type measuring machine

Abstract

The utility model discloses a cantilever type measuring machine, which belongs to the technical field of measuring equipment and comprises a base, a supporting arm, a horizontal cantilever and a measuring mechanism, the supporting arm is slidably mounted on the base, the horizontal cantilever is slidably mounted on the supporting arm, the measuring mechanism is mounted at the end of the horizontal cantilever, and the measuring mechanism is mounted on the base. The measuring mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a measuring probe, the first connecting rod is hinged to the end of the horizontal cantilever, the second connecting rod is hinged to the end of the first connecting rod, the third connecting rod is hinged to the end of the second connecting rod, and the measuring probe is hinged to the end of the third connecting rod. The measuring probe is fixedly mounted at the end part of the third connecting rod; through the arrangement of the measuring mechanism, the first connecting rod, the second connecting rod and the third connecting rod can rotate at different angles, so that the angle of the measuring probe can be freely adjusted according to requirements, and the adaptability to special-shaped workpieces is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring equipment, and particularly relates to a cantilever measuring machine. Background Technique

[0002] The cantilever coordinate measuring machine has the advantages of compact structure, open measuring working space and low manufacturing cost, and is very suitable for high-precision measurement and comparison of the dimensions and geometric shapes of large parts such as marine gas turbines, sheet metal parts of passenger cars and trucks, and wind power generation. The Y-direction guide rail of the coordinate measuring machine bears the greatest force, and the stability of the Y-direction guide rail determines the overall stability of the equipment.

[0003] The existing Chinese patent with the publication number CN212806805U discloses a fixed-workbench cantilever coordinate measuring machine, including a Y-direction guide rail. A conveyor belt is arranged inside the Y-direction guide rail. Shock-absorbing devices are installed at both ends of the conveyor belt. A clamping device is installed on the conveyor belt. A moving table that is slidably matched with the Y-direction guide rail is fixedly connected to the top of the clamping device. The clamping device includes a frame body. A guide roller is rotatably connected to the frame body. Side platforms are fixedly connected to both sides of the frame body. Fixed clamping plates and movable clamping plates are arranged oppositely on the side platforms.

[0004] Regarding the above related technology, the inventor found that at least the following problems exist in this technology: The measuring mechanism is generally installed at the end of the horizontal cantilever. Since the measuring mechanism does not have an adjustment function, the measuring probe angle of the measuring mechanism is fixed and cannot be freely adjusted according to requirements, reducing the adaptability when facing non-standard workpieces. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cantilever measuring machine to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A cantilever measuring machine includes a base, a support arm, a horizontal cantilever and a measuring mechanism. The support arm is slidably installed on the base. The horizontal cantilever is slidably installed on the support arm. The measuring mechanism is installed at the end of the horizontal cantilever.

[0007] The measuring mechanism includes a first connecting rod, a second connecting rod, a third connecting rod and a measuring probe. The first connecting rod is hinged at the end of the horizontal cantilever. The second connecting rod is hinged at the end of the first connecting rod. The third connecting rod is hinged at the end of the second connecting rod. The measuring probe is fixedly installed at the end of the third connecting rod.

[0008] As a preferred implementation manner, a first motor is fixedly installed at the bottom of the horizontal cantilever. The output shaft of the first motor is fixedly connected to the first connecting rod.

[0009] As a preferred embodiment, a second motor is fixedly installed on one side of the first connecting rod. The output end of the second motor is fixedly connected to a first gear. A second gear is meshed with one side of the first gear. One side of the second gear is coaxially connected to a first connecting shaft, and the first connecting shaft is fixedly connected to the second connecting rod.

[0010] As a preferred embodiment, a third motor is fixedly installed on one side of the second connecting rod. The output end of the third motor is fixedly connected to a worm. A worm gear is meshed with one side of the worm. One side of the worm gear is coaxially connected to a second connecting shaft, and the second connecting shaft is fixedly connected to the third connecting rod.

[0011] As a preferred embodiment, protective shells are fixedly connected to one side of both the first connecting rod and the second connecting rod.

[0012] As a preferred embodiment, heat dissipation holes are formed on the surface of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this cantilever measuring machine, through the setting of the measuring mechanism, the first connecting rod, the second connecting rod, and the third connecting rod can all rotate at different angles, so that the angle of the measuring probe can be freely adjusted according to requirements, improving the adaptability when facing workpieces of different shapes.

[0015] For this cantilever measuring machine, the protective shell can protect the motor, and the heat dissipation holes can dissipate heat from the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the measuring mechanism of the present utility model;

[0018] Figure 3 is a schematic diagram of the top view sectional structure of the measuring mechanism of the present utility model.

[0019] In the figure: 1, base; 2, support arm; 3, horizontal cantilever; 4, measuring mechanism; 41, first connecting rod; 411, first motor; 42, second connecting rod; 421, second motor; 422, first gear; 423, second gear; 424, first connecting shaft; 43, third connecting rod; 431, third motor; 432, worm; 433, worm gear; 434, second connecting shaft; 44, measuring probe; 45, protective shell; 46, heat dissipation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in conjunction with embodiments.

[0021] 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 claimed by the present utility model.

[0022] Please refer to Figures 1-3 , the present utility model provides a cantilever measuring machine, which includes a base 1, a support arm 2, a horizontal cantilever 3 and a measuring mechanism 4. The support arm 2 is slidably installed on the base 1, the horizontal cantilever 3 is slidably installed on the support arm 2, and the measuring mechanism 4 is installed at the end of the horizontal cantilever 3. The measuring mechanism 4 includes a first connecting rod 41, a second connecting rod 42, a third connecting rod 43 and a measuring probe 44. The first connecting rod 41 is hinged at the end of the horizontal cantilever 3, the second connecting rod 42 is hinged at the end of the first connecting rod 41, the third connecting rod 43 is hinged at the end of the second connecting rod 42, and the measuring probe 44 is fixedly installed at the end of the third connecting rod 43. Through the setting of the measuring mechanism 4, the first connecting rod 41, the second connecting rod 42 and the third connecting rod 43 can all rotate at different angles, so that the angle of the measuring probe 44 can be freely adjusted according to needs, improving the adaptability when facing non-standard workpieces.

[0023] Among them, a first motor 411 is fixedly installed at the bottom of the horizontal cantilever 3, and the output shaft of the first motor 411 is fixedly connected to the first connecting rod 41. By starting the first motor 411, the first connecting rod 41 can be driven to rotate horizontally.

[0024] Among them, a second motor 421 is fixedly installed on one side of the first connecting rod 41. The output end of the second motor 421 is fixedly connected to a first gear 422. A second gear 423 is meshed on one side of the first gear 422. A first connecting shaft 424 is coaxially connected to one side of the second gear 423. The first connecting shaft 424 is fixedly connected to the second connecting rod 42. By starting the second motor 421, the first gear 422 can be driven to rotate. The first gear 422 drives the second gear 423 to rotate, and the second gear 423 drives the second connecting rod 42 to rotate around the first connecting rod 41 through the first connecting shaft 424.

[0025] Among them, a third motor 431 is fixedly installed on one side of the second connecting rod 42. The output end of the third motor 431 is fixedly connected to a worm 432. A worm gear 433 is meshed on one side of the worm 432. A second connecting shaft 434 is coaxially connected to one side of the worm gear 433. The second connecting shaft 434 is fixedly connected to the third connecting rod 43. By starting the third motor 431 to drive the worm 432 to rotate, the worm 432 drives the worm gear 433 to rotate. The worm gear 433 drives the third connecting rod 43 to rotate around the second connecting shaft 434 through the second connecting shaft 434.

[0026] Among them, protective shells 45 are fixedly connected to one side of the first connecting rod 41 and the second connecting rod 42 respectively. Heat dissipation holes 46 are formed on the surface of the protective shells 45. The protective shells 45 can play a protective role for the motors, and the heat dissipation holes 46 can play a heat dissipation role for the motors.

[0027] The working principle and usage process of the present utility model are as follows: First, through the setting of the measuring mechanism 4, by starting the first motor 411, the first connecting rod 41 can be driven to rotate horizontally. By starting the second motor 421, the first gear 422 can be driven to rotate. The first gear 422 drives the second gear 423 to rotate. The second gear 423 drives the second connecting rod 42 to rotate around the first connecting rod 41 through the first connecting shaft 424. By starting the third motor 431 to drive the worm 432 to rotate, the worm 432 drives the worm gear 433 to rotate. The worm gear 433 drives the third connecting rod 43 to rotate around the second connecting shaft 434 through the second connecting shaft 434, so that the first connecting rod 41, the second connecting rod 42, and the third connecting rod 43 can all rotate at different angles, and thus the angle of the measuring probe 44 can be freely adjusted according to requirements, improving the adaptability when facing different-shaped workpieces.

[0028] 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 cantilever measuring machine, comprising a base (1), a support arm (2), a horizontal cantilever (3) and a measuring mechanism (4), characterized in that: The support arm (2) is slidably mounted on the base (1), the horizontal cantilever (3) is slidably mounted on the support arm (2), and the measuring mechanism (4) is mounted at the end of the horizontal cantilever (3); The measuring mechanism (4) comprises a first connecting rod (41), a second connecting rod (42), a third connecting rod (43) and a measuring probe (44); the first connecting rod (41) is hinged at the end of the horizontal cantilever (3); the second connecting rod (42) is hinged at the end of the first connecting rod (41); the third connecting rod (43) is hinged at the end of the second connecting rod (42); and the measuring probe (44) is fixedly mounted at the end of the third connecting rod (43).

2. A cantilever measuring machine according to claim 1, characterized in that: A first motor (411) is fixedly mounted on the bottom of the horizontal cantilever (3), and an output shaft of the first motor (411) is fixedly connected to a first connecting rod (41).

3. The cantilever measuring machine according to claim 1, characterized in that: A second motor (421) is fixedly mounted on one side of the first connecting rod (41); an output end of the second motor (421) is fixedly connected to a first gear (422); a second gear (423) is meshed on one side of the first gear (422); a first connecting shaft (424) is coaxially connected to one side of the second gear (423); and the first connecting shaft (424) is fixedly connected to the second connecting rod (42).

4. A cantilever measuring machine according to claim 3, characterized in that: A third motor (431) is fixedly mounted on one side of the second connecting rod (42); a worm (432) is fixedly connected to the output end of the third motor (431); a worm wheel (433) is meshed with one side of the worm (432); a second connecting shaft (434) is coaxially connected to one side of the worm wheel (433); and the second connecting shaft (434) is fixedly connected to the third connecting rod (43).

5. A cantilever measuring machine according to claim 4, characterized in that: One side of each of the first connecting rod (41) and the second connecting rod (42) is fixedly connected to a protective shell (45).

6. A cantilever measuring machine according to claim 5, characterized in that: The surface of the protective shell (45) is provided with heat dissipation holes (46).

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