Fixed mounting structure of three-coordinate measuring machine

Abstract

The utility model relates to the technical field of three-coordinate measuring machines, in particular to a fixed installation structure of a three-coordinate measuring machine, which comprises a bottom plate, an operation table is arranged on the surface of the bottom plate, a hydraulic cylinder is arranged on the surface of the operation table, an installation plate is arranged on the surface of the hydraulic cylinder, and a fixing device is arranged on the surface of the operation table. The fixing device comprises a groove, the groove is formed in the surface of the operation table, the surface of the groove is rotationally connected with a bidirectional lead screw, the arc surface of the bidirectional lead screw is in threaded connection with two screw blocks, the two screw blocks are both in sliding connection with the groove, and the surfaces of the screw blocks are fixedly connected with push plates. According to the utility model, the problems that when a special-shaped object is measured, the contact area between the clamp and the special-shaped surface of the object is too small, so that the clamping and fixing are not stable enough, and the measured data deviates due to the fact that the clamp is in contact with the special-shaped surface of the object are avoided, the stability of the object during measurement is improved, and the measurement accuracy is improved. And the accuracy of the measured data is further improved.

Description

Technical Field

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

[0002] A coordinate measuring machine (CMM) is a high-precision measuring tool primarily used in industrial production to measure the three-dimensional coordinates of workpieces. It acquires accurate data through built-in sensors and computer software to monitor the geometric characteristics of the workpiece.

[0003] The prior art includes a patent document with publication number CN220104039U, which discloses a fixed installation structure for a coordinate measuring machine (CMM). The structure includes a support plate with fixed blocks equidistantly mounted on its top. Each fixed block has a telescopic hydraulic cylinder fixedly mounted on its top, and each telescopic hydraulic cylinder has a fixed plate fixedly mounted on its top. A storage plate is movably installed between the fixed blocks, and baffles are fixedly mounted on both sides of the top of the storage plate. This patent document describes a feature where sliders are fixedly mounted on the top of the positioning plate, allowing for back-and-forth movement of the sliders via a slide rail. This movement adjusts the position of products of different sizes, facilitating coordinate measurement and improving product inspection accuracy. A support pad stores the products, and an electric push rod is used to connect its output end to a limiting sleeve. The limiting bolt is then tightened for fixation. Finally, the electric push rod drives the limiting plate to limit the position of products of different sizes.

[0004] The above-mentioned and existing technologies have the following drawbacks: when measuring irregularly shaped objects, since the clamp contacts the irregular surface of the object, the contact area between the clamp and the irregular surface of the object may be too small, making the clamping and fixing unstable and causing deviations in the measurement data.

[0005] Therefore, a fixed installation structure for a coordinate measuring machine is proposed. Utility Model Content

[0006] The purpose of this invention is to address the drawback that the contact area between the clamp and the irregular surface of the object may be too small due to the clamp being in contact with the irregular surface, resulting in insufficient stability during clamping and fixation, and causing deviations in the measurement data. Therefore, this invention proposes a fixed installation structure for a coordinate measuring machine.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a fixed installation structure for a coordinate measuring machine, including a base plate, an operating table mounted on the surface of the base plate, a hydraulic cylinder mounted on the surface of the operating table, an mounting plate mounted on the surface of the hydraulic cylinder, a fixing device provided on the surface of the operating table, the fixing device including a groove, the groove being formed on the surface of the operating table, a bidirectional lead screw rotatably connected to the surface of the groove, two screw blocks threadedly connected to the arc surface of the bidirectional lead screw, both screw blocks being slidably connected to the groove, a push plate fixedly connected to the surface of the screw blocks, and a connecting rod fixedly connected to the surface of the push plate. An arc-shaped plate is fixedly connected to the surface of the connecting rod. Two rotating shafts are rotatably connected to the surface of the arc-shaped plate. An extrusion plate is fixedly connected to the surface of each of the two rotating shafts. Two electric telescopic rods are fixedly connected to the surface of the push plate. A push block is fixedly connected to one end of each of the two electric telescopic rods. The push block abuts against the extrusion plate. Two first springs are fixedly connected to the surface of the push plate. The other end of each of the two first springs is fixedly connected to the extrusion plate. Two sliders are fixedly connected to the surface of the push plate. A fixed rod is slidably connected to the surface of each of the two sliders. A fixed plate is fixedly connected to both ends of each fixed rod. The fixed plate is fixedly connected to the operating table.

[0008] The effect achieved by the above-mentioned components is as follows: By setting up a fixing device, and utilizing the cooperation between the groove, the two-way lead screw, the screw block, the push plate, the connecting rod, the rotating shaft, the pressing plate, the electric telescopic rod, the push block, the first spring, the fixing plate, the fixing rod, and the slider, the irregularly shaped object to be measured can be fixed. This avoids the situation where, when measuring an irregularly shaped object, the contact area between the clamp and the irregularly shaped surface of the object may be too small, resulting in insufficient stability during clamping and fixing, which could lead to deviations in the measurement data. This improves the stability of the object during measurement and further improves the accuracy of the measurement data.

[0009] Preferably, two limiting blocks are fixedly connected to the surface of the push plate, and the surfaces of the two limiting blocks are slidably connected to limiting grooves, which are formed on the surface of the operating table.

[0010] The effect achieved by the above components is that the push plate will drive the limiting block to move along the surface of the limiting groove. At this time, the limiting block and the limiting groove can prevent the push plate from deviating during the movement.

[0011] Preferably, a roller is rotatably connected to the surface of the limiting block, and the roller is slidably connected to the limiting groove.

[0012] The effect achieved by the above components is that the limiting block will drive the roller to roll along the surface of the limiting groove, and at this time the roller can reduce the friction between the limiting block and the limiting groove.

[0013] Preferably, a protective pad, which is a rubber pad, is fixedly connected to the surface of the arc-shaped plate.

[0014] The effect achieved by the above components is that the curved plate will drive the protective pad to move, and the rubber protective pad can protect the contact surface between the curved plate and the object.

[0015] Preferably, one end of the bidirectional lead screw is provided with an auxiliary device, the auxiliary device including a circular plate, the circular plate being fixedly connected to the bidirectional lead screw, a rectangular groove being formed on the surface of the circular plate, a rectangular rod being slidably connected to the surface of the rectangular groove, and a throttle being fixedly connected to one end of the rectangular rod.

[0016] The effect achieved by the above components is as follows: by setting up auxiliary devices and utilizing the cooperation between the circular plate, rectangular groove, rectangular rod and throttle, when clamping an irregularly shaped object, the bidirectional lead screw is rotated under the influence of external force, causing the bidirectional lead screw to drive the arc plate to rotate, resulting in loosening when fixing the irregularly shaped object, thus causing deviation in the measurement data, improving the stability of the bidirectional lead screw, and further improving the accuracy of the measurement data.

[0017] Preferably, a second spring is fitted onto the surface of the rectangular rod, and the two ends of the second spring are fixedly connected to the circular plate and the throttle respectively.

[0018] The effect achieved by the above components is that the throttle will drive one end of the second spring to move, and at the same time the second spring itself will generate an outward elastic force. At this time, the second spring can connect the throttle and the circular plate to prevent the throttle from being lost.

[0019] Preferably, one end of the rectangular rod is fixedly connected to a pointed cone, which is a stainless steel cone.

[0020] The effect achieved by the above components is that the rectangular rod will drive the pointed cone to move in the same direction, at which time the pointed cone can easily enter the rectangular groove into the rectangular rod.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, by setting up a fixing device, and utilizing the cooperation between the groove, the bidirectional lead screw, the screw block, the push plate, the connecting rod, the rotating shaft, the extrusion plate, the electric telescopic rod, the push block, the first spring, the fixing plate, the fixing rod, and the slider, the irregularly shaped object to be measured can be fixed. This avoids the situation where, when measuring an irregularly shaped object, the contact area between the clamp and the irregularly shaped surface of the object may be too small, resulting in insufficient stability during clamping and fixing, which could lead to deviations in the measurement data. This improves the stability of the object during measurement and further enhances the accuracy of the measurement data.

[0023] 2. In this utility model, by setting an auxiliary device and utilizing the cooperation between the circular plate, rectangular groove, rectangular rod and throttle, when clamping an irregularly shaped object, the bidirectional lead screw is rotated under the influence of external force, causing the bidirectional lead screw to drive the arc plate to rotate, resulting in loosening when fixing the irregularly shaped object, thereby causing deviation in the measurement data, improving the stability of the bidirectional lead screw, and further improving the accuracy of the measurement data. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0026] Figure 3 This utility model Figure 2 A schematic diagram of a partial structure;

[0027] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0028] Figure 5 This utility model Figure 2 Enlarged view of point B.

[0029] Legend: 1. Base plate; 2. Operating table; 3. Hydraulic cylinder; 4. Mounting plate; 5. Fixing device; 501. Groove; 502. Two-way lead screw; 503. Screw block; 504. Push plate; 505. Connecting rod; 506. Arc plate; 507. Rotating shaft; 508. Extrusion plate; 509. Electric telescopic rod; 510. Push block; 511. First spring; 512. Fixing plate; 513. Fixing rod; 514. Slider; 515. Limiting block; 516. Limiting groove; 517. Roller; 518. Protective pad; 6. Auxiliary device; 61. Circular plate; 62. Rectangular groove; 63. Rectangular rod; 64. Turning handle; 65. Second spring; 66. Cone. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0032] like Figures 1-5As shown, this utility model provides a fixed installation structure for a coordinate measuring machine, including a base plate 1, an operating table 2 mounted on the surface of the base plate 1, a hydraulic cylinder 3 mounted on the surface of the operating table 2, an installation plate 4 mounted on the surface of the hydraulic cylinder 3, a fixing device 5 provided on the surface of the operating table 2, and an auxiliary device 6 provided at one end of a bidirectional lead screw 502.

[0033] The following section will describe in detail the specific setup and function of its fixing device 5 and auxiliary device 6.

[0034] like Figures 2-4 As shown, the fixing device 5 includes a groove 501, which is formed on the surface of the operating table 2. A bidirectional lead screw 502 is rotatably connected to the surface of the groove 501. Two screw blocks 503 are threadedly connected to the arc surface of the bidirectional lead screw 502. Both screw blocks 503 are slidably connected to the groove 501. A push plate 504 is fixedly connected to the surface of the screw blocks 503. A connecting rod 505 is fixedly connected to the surface of the push plate 504. An arc-shaped plate 506 is fixedly connected to the surface of the connecting rod 505. Two rotating shafts 507 are rotatably connected to the surface of the arc-shaped plate 506. Both rotating shafts 507 have pressing plates 508 fixedly connected to their surfaces. Two electric telescopic rods 509 are fixedly connected to the surface of the push plate 504. A push block 510 is fixedly connected to one end of each of the two electric telescopic rods 509, and the push block 510 abuts against the pressing plate 508. Two first springs 511 are fixedly connected to the surface of the push plate 504, and the other ends of each of the two first springs 511 are fixedly connected to the pressing plate 508. Two sliders 514 are fixedly connected to the surface of the push plate 504, and a fixed rod is slidably connected to the surface of each of the two sliders 514. 513, both ends of the fixed rod 513 are fixedly connected to fixed plates 512, and the fixed plates 512 are fixedly connected to the operating table 2. Two limit blocks 515 are fixedly connected to the surface of the push plate 504. Limit grooves 516 are slidably connected to the surfaces of the two limit blocks 515. The limit grooves 516 are formed on the surface of the operating table 2. The push plate 504 will drive the limit blocks 515 to move along the surface of the limit grooves 516. At this time, the limit blocks 515 and the limit grooves 516 can prevent the push plate 504 from deviating during movement. A roller 517 is rotatably connected to the surface of the curved plate 506. The roller 517 is slidably connected to the limiting groove 516. The limiting block 515 will drive the roller 517 to roll along the surface of the limiting groove 516. At this time, the roller 517 can reduce the friction between the limiting block 515 and the limiting groove 516. A protective pad 518 is fixedly connected to the surface of the curved plate 506. The protective pad 518 is a rubber pad. The curved plate 506 will drive the protective pad 518 to move. At this time, the rubber protective pad 518 can protect the contact surface between the curved plate 506 and the object.

[0035] like Figure 2 and Figure 5As shown, the auxiliary device 6 includes a circular plate 61, which is fixedly connected to a bidirectional lead screw 502. A rectangular groove 62 is formed on the surface of the circular plate 61, and a rectangular rod 63 is slidably connected to the surface of the rectangular groove 62. A handle 64 is fixedly connected to one end of the rectangular rod 63, and a second spring 65 is sleeved on the surface of the rectangular rod 63. The two ends of the second spring 65 are fixedly connected to the circular plate 61 and the handle 64, respectively. The handle 64 will drive one end of the second spring 65 to move, and at the same time, the second spring 65 itself will generate an outward elastic force. At this time, the second spring 65 can connect the handle 64 and the circular plate 61 to prevent the handle 64 from being lost. A pointed cone 66 is fixedly connected to one end of the rectangular rod 63. The pointed cone 66 is a stainless steel cone. The rectangular rod 63 will drive the pointed cone 66 to move in the same direction. At this time, the pointed cone 66 can facilitate the rectangular rod 63 to enter the rectangular groove 62.

[0036] The overall working principle is as follows: When measuring an object, first place the object on the operating table 2, then rotate the bidirectional lead screw 502. At this time, the bidirectional lead screw 502 will rotate along the surface of the groove 501. Simultaneously, the bidirectional lead screw 502 will drive the two screw blocks 503 to move closer to each other through its own thread. Then, the screw blocks 503 will drive the push plate 504 to move in the same direction. Next, the push plate 504 will drive the slider 514 to move along the fixed rod 513 on the fixed plate 512. At the same time, the push plate 504 will drive the connecting rod 505 to move. Then, the push plate 502 will move along the groove 501. 4. The limiting block 515 will move along the surface of the limiting groove 516. At this time, the limiting block 515 and the limiting groove 516 can prevent the push plate 504 from deviating during the movement. At the same time, the limiting block 515 will drive the roller 517 to roll along the surface of the limiting groove 516. At this time, the roller 517 can reduce the friction between the limiting block 515 and the limiting groove 516. Then, the connecting rod 505 will drive the arc plate 506 to move. At the same time, the arc plate 506 will drive the protective pad 518 to move. At this time, the rubber protective pad 518 can protect the arc plate 506 from contact with the object. The contact surface is protected. When the curved plate 506 is in close contact with the object, the electric telescopic rod 509 is activated. The electric telescopic rod 509 then pushes the push block 510 to move. At this time, the push block 510 pushes the extrusion plate 508, causing the rotating shaft 507 to rotate along the surface of the curved plate 506, extruding the irregular surface of the object. At the same time, the extrusion plate 508 drives one end of the first spring 511 to move. At this time, the first spring 511 will use its own tension to help the extrusion plate 508 quickly return to its original position. By setting the fixing device 5, the groove 501, the bidirectional lead screw 502, and the screw block 50 are used to protect the object. 3. The cooperation between the push plate 504, connecting rod 505, rotating shaft 507, pressing plate 508, electric telescopic rod 509, push block 510, first spring 511, fixing plate 512, fixing rod 513, and slider 514 can fix the irregularly shaped object to be measured. This avoids the situation where, when measuring an irregularly shaped object, the contact area between the clamp and the irregular surface of the object may be too small, resulting in insufficient stability during clamping and fixation, which could lead to deviations in the measurement data. This improves the stability of the object during measurement and further enhances the accuracy of the measurement data.

[0037] When the bidirectional lead screw 502 needs to be rotated, simply move the handle 64 towards the circular plate 61. The handle 64 will then move the rectangular rod 63 towards the rectangular slot 62, simultaneously causing the cone 66 to move in the same direction. The cone 66 facilitates the insertion of the rectangular rod 63 into the rectangular slot 62. Next, the handle 64 will move one end of the second spring 65, which will generate an outward elastic force. The second spring 65 connects the handle 64 to the circular plate 61, preventing the handle 64 from being lost. Once the rectangular rod 63 is inserted into the rectangular slot 62, rotating the handle 64 will cause the rectangular rod 63 to rotate, which in turn will rotate the rectangular slot 62. Then, the rectangular groove 62 will drive the circular plate 61 to rotate. At this time, the circular plate 61 will drive the bidirectional lead screw 502 to rotate. After the rotation is finished, the handle 64 is released, and the spring will use its own elastic force to pop the handle 64 away from the circular plate 61. At this time, the handle 64 will drive the rectangular rod 63 to pop out from the rectangular groove 62. By setting the auxiliary device 6, and utilizing the cooperation between the circular plate 61, the rectangular groove 62, the rectangular rod 63 and the handle 64, when clamping the irregular surface of the object, the bidirectional lead screw 502 will rotate under the influence of external force, causing the bidirectional lead screw 502 to drive the arc plate 506 to rotate. When fixing the irregular object, it will become loose, resulting in deviation of the measurement data. This improves the stability of the bidirectional lead screw 502 and further improves the accuracy of the measurement data.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A fixed installation structure of a three-coordinate measuring machine comprising a base plate (1), characterized in that: The surface of the bottom plate (1) is provided with an operating table (2), the surface of the operating table (2) is provided with a hydraulic cylinder (3), the surface of the hydraulic cylinder (3) is provided with a mounting plate (4), the surface of the operating table (2) is provided with a fixing device (5), the fixing device (5) comprises a groove (501) formed in the surface of the operating table (2), a bidirectional screw rod (502) rotatably connected to the surface of the groove (501), two screw blocks (503) threadedly connected to the curved surface of the bidirectional screw rod (502), both the screw blocks (503) being slidably connected with the groove (501), a push plate (504) fixedly connected to the surface of the screw block (503), a connecting rod (505) fixedly connected to the surface of the push plate (504), an arc-shaped plate (506) fixedly connected to the surface of the connecting rod (505), two rotating shafts (507) rotatably connected to the surface of the arc-shaped plate (506), two extrusion plates (508) fixedly connected to the surface of both the rotating shafts (507), two electric telescopic rods (509) fixedly connected to the surface of the push plate (504), two push blocks (510) fixedly connected to one end of both the electric telescopic rods (509), the push blocks (510) abutting against the extrusion plates (508), two first springs (511) fixedly connected to the surface of the push plate (504), both the first springs (511) being fixedly connected to the extrusion plates (508), two sliding blocks (514) fixedly connected to the surface of the push plate (504), two fixed rods (513) slidably connected to the surface of both the sliding blocks (514), and two fixed plates (512) fixedly connected to both ends of the fixed rod (513), the fixed plates (512) being fixedly connected with the operating table (2).

2. A fixed mounting structure for a coordinate measuring machine according to claim 1, characterized in that: The surface of the push plate (504) is fixedly connected with two limiting blocks (515), the surface of both the limiting blocks (515) is slidably connected with a limiting groove (516), and the limiting groove (516) is formed in the surface of the operating table (2).

3. A fixed mounting structure for a coordinate measuring machine according to claim 2, characterized in that: The surface of the limiting block (515) is rotatably connected with a roller (517), and the roller (517) is slidably connected with the limiting groove (516).

4. A fixed mounting structure for a coordinate measuring machine according to claim 1, characterized in that: The surface of the arc-shaped plate (506) is fixedly connected with a protective pad (518), and the protective pad (518) is a rubber pad.

5. A fixed mounting structure for a coordinate measuring machine according to claim 1, characterized in that: One end of the bidirectional screw rod (502) is provided with an auxiliary device (6), the auxiliary device (6) comprises a circular plate (61) fixedly connected with the bidirectional screw rod (502), a rectangular groove (62) formed in the surface of the circular plate (61), and a rectangular rod (63) slidably connected with the surface of the rectangular groove (62).

6. A fixed mounting structure for a coordinate measuring machine according to claim 5, characterized in that: The surface of the rectangular rod (63) is sleeved with a second spring (65), and both ends of the second spring (65) are fixedly connected with the circular plate (61) and the rotating handle (64) respectively.

7. A fixed mounting structure for a coordinate measuring machine according to claim 5, characterized in that: One end of the rectangular rod (63) is fixedly connected with a sharp cone (66), and the sharp cone (66) is a stainless steel cone.

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