Three-coordinate measuring instrument

Abstract

The utility model discloses a three-coordinate measuring instrument, which relates to the technical field of measuring equipment and comprises a workbench, an X-axis rack, a Z-axis rack, a telescopic rod and a protective mechanism, the Y-axis rack is mounted on one side of the workbench, the X-axis rack is mounted at the top end of the Y-axis rack, the Z-axis rack is arranged on the X-axis rack, the output end of the Z-axis rack is connected with the telescopic rod, and the output end of the Z-axis rack is connected with the protective mechanism. The top end of the telescopic rod is provided with a probe, and the protection mechanism is arranged outside the telescopic rod. According to the utility model, the probe can be surrounded and protected by using the protection mechanism when the probe is not used, and the probe can be lifted to the outside of the telescopic rod when the probe is used without influencing the normal use of the probe, so that the safety of the probe in an idle state is ensured, and possible collision and mistaken touch caused by exposure are avoided; and when measurement work is needed, the protection mechanism can be rapidly lifted, so that the probe can work normally, and the use convenience and stability of the three-coordinate measuring instrument are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a coordinate measuring machine. Background Technology

[0002] Coordinate measuring machines (CMMs) are widely used in industries such as machinery, electronics, instrumentation, and plastics. They are one of the most effective methods for measuring and obtaining dimensional data because they can replace various surface measuring tools and expensive combination gauges, and reduce the time required for complex measurement tasks from hours to minutes, an effect that other instruments cannot achieve.

[0003] Existing coordinate measuring machines typically measure objects by using probes. However, the probes are not protected by any external mechanism. When not in use, the probes are exposed and are easily bumped by surrounding objects or accidentally touched by operators. This can cause the probes to bend or break, which not only increases maintenance costs but also leads to longer downtime, seriously affecting production efficiency and the normal operation of measurement work. Utility Model Content

[0004] The purpose of this invention is to provide a coordinate measuring machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coordinate measuring machine, comprising:

[0006] A workbench, on one side of which a Y-axis frame is fixedly mounted;

[0007] The X-axis frame is fixedly installed on the top of the Y-axis frame;

[0008] Z-axis frame, which is slidably mounted on X-axis frame;

[0009] The telescopic rod is connected to the output end of the Z-axis frame via a transmission connection, and a probe is fixedly installed at the top of the telescopic rod.

[0010] A protective mechanism is provided on the outside of the telescopic rod.

[0011] Preferably, the protective mechanism includes:

[0012] A protective sleeve is slidably fitted onto the outside of the telescopic rod, and the probe is located inside the protective sleeve;

[0013] The slider has grooves on both sides of the telescopic rod, and the slider is slidably inserted into the inner cavity of the groove.

[0014] A snap-fit ​​assembly, which is disposed inside the slider, is used for multi-point positioning of the protective sleeve.

[0015] Preferably, countersunk holes are provided on both sides of the protective sleeve, and bolts are slidably inserted into the inner cavity of the countersunk holes. The outer wall of the slider is provided with mounting holes, and the bolts pass through the countersunk holes and are slidably inserted into the inner cavity of the mounting holes.

[0016] Preferably, the snap-fit ​​assembly includes:

[0017] The snap-fit ​​rod has a snap-fit ​​groove inside the slider, and snap-fit ​​holes are equidistantly opened on the inner wall of the groove. One end of the snap-fit ​​rod is slidably inserted into the inner cavity of the snap-fit ​​groove, and the other end of the snap-fit ​​rod is slidably inserted into the inner cavity of the snap-fit ​​hole.

[0018] A sliding rod, one end of which is fixedly connected to the inner wall of the snap-fit ​​groove, and the other end of which is slidably inserted into the inner cavity of the snap-fit ​​rod;

[0019] A compression spring, which is sleeved on the outside of the slide rod.

[0020] Preferably, one end of the compression spring is fixedly connected to the snap-fit ​​rod, and the other end of the compression spring is fixedly connected to the inner wall of the snap-fit ​​groove.

[0021] Preferably, the snap-fit ​​assembly further includes:

[0022] The pressing rod has pressing grooves on both sides of the protective sleeve, and the pressing rod is slidably inserted into the inner cavity of the pressing groove.

[0023] The gear has a through groove at the bottom end of the snap-fit ​​groove that communicates with the pressing groove, and the gear is rotatably mounted inside the through groove via a rotating shaft;

[0024] A rack is fixedly connected to a snap-fit ​​rod and a pressing rod, and a gear meshes with the rack.

[0025] The technical effects and advantages of this utility model are as follows:

[0026] This invention utilizes a protective mechanism to surround and protect the probe when it is not in use. When in use, the mechanism can be raised to the outside of the telescopic rod without affecting the normal use of the probe. This ensures the safety of the probe when it is idle, avoiding potential collisions and accidental contact due to exposure. When measurement work is required, the protective mechanism can be quickly raised to allow the probe to work normally, greatly improving the ease of use and stability of the coordinate measuring machine. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2This is a schematic diagram of the internal structure of the protective mechanism of this utility model from the front.

[0029] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0030] In the diagram: 1. Worktable; 2. Y-axis frame; 3. X-axis frame; 4. Z-axis frame; 5. Telescopic rod; 6. Probe; 7. Protective mechanism; 71. Protective sleeve; 72. Slider; 73. Snap-fit ​​assembly; 731. Snap-fit ​​rod; 732. Slide rod; 733. Compression spring; 734. Pressing rod; 735. Gear; 736. Rack; 74. Bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figure 1-3 The coordinate measuring machine shown includes a worktable 1, an X-axis frame 3, a Z-axis frame 4, a telescopic rod 5, and a protective mechanism 7. A Y-axis frame 2 is fixedly mounted on one side of the worktable 1. The X-axis frame 3 is fixedly mounted on the top of the Y-axis frame 2. The Z-axis frame 4 is slidably mounted on the X-axis frame 3. The output end of the Z-axis frame 4 is connected to the telescopic rod 5. A probe 6 is fixedly mounted on the top of the telescopic rod 5. The protective mechanism 7 is located outside the telescopic rod 5. The protective mechanism 7 can surround and protect the probe 6 when it is not in use, and can be raised outside the telescopic rod 5 when in use, without affecting the normal use of the probe 6. This ensures the safety of the probe 6 in its idle state, avoiding potential collisions and accidental contact due to exposure, and allows the protective mechanism 7 to be quickly raised when measurement work is needed, enabling the probe 6 to work normally. This greatly improves the ease of use and stability of the coordinate measuring machine.

[0033] Specifically, the protective mechanism 7 includes a protective sleeve 71, a slider 72, and a snap-fit ​​assembly 73. The protective sleeve 71 is slidably fitted onto the outside of the telescopic rod 5, and the probe 6 is located inside the protective sleeve 71. Slide grooves are provided on both sides of the telescopic rod 5. The slider 72 is slidably inserted into the inner cavity of the slide groove. The snap-fit ​​assembly 73 is located inside the slider 72 and is used for multi-point positioning of the protective sleeve 71. The position of the protective sleeve 71 on the telescopic rod 5 can be adjusted by the snap-fit ​​assembly 73, so that the probe 6 is surrounded and protected when it is not in use. When in use, it can be raised to the outside of the telescopic rod 5 without affecting the normal use of the probe 6.

[0034] Furthermore, countersunk holes are provided on both sides of the protective sleeve 71, and bolts 74 are slidably inserted into the inner cavity of the countersunk holes. Mounting holes are provided on the outer wall of the slider 72, and bolts 74 are slidably inserted into the inner cavity of the mounting holes through the countersunk holes. The protective sleeve 71 and the slider 72 can be disassembled and installed through the bolts 74, and the internal components can be maintained and replaced at any time.

[0035] Furthermore, the snap-fit ​​assembly 73 includes a snap-fit ​​rod 731, a slide rod 732, and a compression spring 733. The slide rod 72 has a snap-fit ​​groove inside, and snap-fit ​​holes are equidistantly spaced on the inner wall of the groove. One end of the snap-fit ​​rod 731 is slidably inserted into the inner cavity of the snap-fit ​​groove, and the other end is slidably inserted into the inner cavity of the snap-fit ​​hole. One end of the slide rod 732 is fixedly connected to the inner wall of the snap-fit ​​groove, and the other end is slidably inserted into the inner cavity of the snap-fit ​​rod 731. The compression spring 733 is sleeved on the outside of the slide rod 732, and one end of the compression spring 733... The other end of the compression spring 733 is fixedly connected to the snap-fit ​​rod 731 and the snap-fit ​​groove inner wall. The compression spring 733 is always in a compressed state, so it can provide a stable elastic force to the snap-fit ​​rod 731, making the snap-fit ​​rod 731 snap-fit ​​with the snap-fit ​​hole stable. When snap-fitting with the snap-fit ​​hole located at the bottom, the protective sleeve 71 can be surrounded on the outside of the probe 6, so as to ensure the safety of the probe 6 when it is idle. When snap-fitting with the snap-fit ​​hole located at the top, the protective sleeve 71 can be lifted to expose the probe 6 without affecting its normal use.

[0036] Furthermore, the snap-fit ​​assembly 73 also includes a pressing rod 734, a gear 735, and a rack 736. Pressing grooves are provided on both sides of the protective sleeve 71. The pressing rod 734 is slidably inserted into the inner cavity of the pressing groove. A through groove communicating with the pressing groove is provided at the bottom of the snap-fit ​​groove. The gear 735 is rotatably disposed inside the through groove via a rotating shaft. The rack 736 is fixedly connected to the snap-fit ​​rod 731 and the pressing rod 734 respectively. The gear 735 and the rack 736 are meshed together. By simultaneously pressing the pressing rods 734 on both sides of the protective sleeve 71, the rack 736 drives the gear 735 to rotate, thereby displacing the snap-fit ​​rod 731 and disengaging it from the snap-fit ​​hole. At this time, the protective sleeve 71 can slide freely. When the pressing rod 734 is released at the desired stopping position, the snap-fit ​​rod 731 will pop out again under the elastic force of the compression spring 733 and snap into the snap-fit ​​hole at the current position.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coordinate measuring machine, characterized in that, include: A workbench (1) is provided, and a Y-axis frame (2) is fixedly installed on one side of the workbench (1). X-axis frame (3), which is fixedly installed on the top of Y-axis frame (2); Z-axis frame (4), which is slidably mounted on X-axis frame (3); Telescopic rod (5), the output end of the Z-axis frame (4) is connected to the telescopic rod (5) in a transmission, and a probe (6) is fixedly installed at the top of the telescopic rod (5); The protective mechanism (7) is located outside the telescopic rod (5).

2. A coordinate measuring machine according to claim 1, characterized in that, The protective mechanism (7) includes: A protective sleeve (71) is slidably sleeved on the outside of the telescopic rod (5), and the probe (6) is located inside the protective sleeve (71); The slider (72) has grooves on both sides of the telescopic rod (5), and the slider (72) is slidably inserted into the inner cavity of the groove. A snap-fit ​​assembly (73) is disposed inside the slider (72) for multi-point positioning of the protective sleeve (71).

3. A coordinate measuring machine according to claim 2, characterized in that, The protective sleeve (71) has countersunk holes on both sides, and bolts (74) are slidably inserted into the inner cavity of the countersunk holes. The outer wall of the slider (72) has mounting holes, and the bolts (74) pass through the countersunk holes and are slidably inserted into the inner cavity of the mounting holes.

4. A coordinate measuring machine according to claim 2, characterized in that, The snap-fit ​​assembly (73) includes: The locking rod (731) has a locking groove inside the slider (72), and locking holes are equidistantly provided on the inner wall of the groove. One end of the locking rod (731) is slidably inserted into the inner cavity of the locking groove, and the other end of the locking rod (731) is slidably inserted into the inner cavity of the locking hole. A slide rod (732), one end of which is fixedly connected to the inner wall of the snap-fit ​​groove, and the other end of which is slidably inserted into the inner cavity of the snap-fit ​​rod (731); A compression spring (733) is sleeved on the outside of the slide bar (732).

5. A coordinate measuring machine according to claim 4, characterized in that, One end of the compression spring (733) is fixedly connected to the snap-fit ​​rod (731), and the other end of the compression spring (733) is fixedly connected to the inner wall of the snap-fit ​​groove.

6. A coordinate measuring machine according to claim 4, characterized in that, The snap-fit ​​assembly (73) also includes: The pressing rod (734) has pressing grooves on both sides of the protective sleeve (71), and the pressing rod (734) is slidably inserted into the inner cavity of the pressing groove; The gear (735) has a through groove at the bottom end of the snap-fit ​​groove that communicates with the pressing groove, and the gear (735) is rotatably disposed inside the through groove via a rotating shaft; A rack (736) is fixedly connected to a snap-fit ​​rod (731) and a pressing rod (734) respectively, and a gear (735) meshes with the rack (736).

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