Triaxial measuring device

Abstract

The utility model discloses a three-axis measuring device which is characterized in that a second sliding plate is connected with a connecting block in a sliding manner, the bottom of the connecting block is provided with a measuring head, the top of the second sliding plate is provided with a third electric sliding rail with a third sliding plate in a vertical manner, and the top of the connecting block is fixedly connected with the third sliding plate; a bearing table internally provided with a cavity is arranged at the top of the machine table, a two-way screw rod is located in the cavity and rotationally installed in the mode of being parallel to the first electric sliding rails, the two ends of the two-way screw rod are each in threaded connection with a movable plate, and a connecting plate is installed at the top of each movable plate; the upper surface of the bearing table is provided with a sliding groove for the connecting plate to slide, and a clamping plate connected with the connecting plate is correspondingly arranged above the bearing table and parallel to the moving plate. The three-axis measuring device not only reduces the deviation of the measuring head and improves the measuring precision, but also improves the position precision of a product, thereby improving the overall measuring precision.

Description

Technical Field

[0001] The utility model relates to the technical field of three - coordinate measurement, and particularly relates to a three - axis measurement device. Background Art

[0002] A three - axis measurement device refers to an instrument that can exhibit measurement capabilities such as geometric shape, length, and circumferential graduation within the space range of a hexahedron, also known as a three - coordinate measuring machine or a three - coordinate measuring bed. Its detector transmits signals in contact or non - contact ways, and the displacement measurement systems of the three axes (such as grating scales) calculate the coordinates (x, y, z) of each point of the product and various functional measurements through a data processor or a computer, etc.

[0003] However, the measuring head of the existing measuring instrument is unstable during movement and is prone to deviation. Moreover, the product is simply placed on the measuring table without being fixed, resulting in the product being prone to deviation during the measurement process, both of which will affect the accuracy of the measurement results. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a three - axis measurement device, which not only reduces the deviation of the measuring head, improves the measurement accuracy, but also improves the position accuracy of the product, thereby improving the overall measurement accuracy.

[0005] To achieve the above - mentioned purpose, the technical solution adopted by the utility model is: a three - axis measurement device, including: a machine table, and a measuring head located above the machine table. On the left and right sides of the bearing table, there is respectively a first electric slide rail with a first slide plate. Between the two first slide plates and perpendicular to the first electric slide rail, there is a second electric slide rail with a second slide plate. The second slide plate is slidably connected with a connecting block with a measuring head installed at the bottom. At the top of the second slide plate, there is a third electric slide rail with a third slide plate arranged vertically. The top of the connecting block is fixedly connected with the third slide plate;

[0006] At the top of the machine table, there is a bearing table with a cavity inside. Inside the cavity, a bidirectional screw is rotatably installed in a manner parallel to the first electric slide rail. The two ends of the bidirectional screw are respectively thread - connected with a moving plate. The top of the moving plate is installed with a connecting plate. A sliding groove for the connecting plate to slide is opened on the upper surface of the bearing table. Above the bearing table and parallel to the moving plate, there is a clamping plate connected with the connecting plate.

[0007] The further improved solutions in the above - mentioned technical solutions are as follows:

[0008] 1. In the above - mentioned solution, two connecting plates are respectively arranged at the two ends of the top of the moving plate.

[0009] 2. In the above solution, a guide rod is symmetrically arranged with respect to the bidirectional screw, and the moving plate is slidably sleeved on the outer circumferential wall of the guide rod.

[0010] 3. In the above solution, at least two guide rods are arranged on one side of the bidirectional screw.

[0011] 4. In the above solution, the connecting plate is located between two adjacent guide rods.

[0012] 5. In the above solution, anti-slip pads are arranged on the opposite sides of the two clamping plates, and the anti-slip pads are located between the two connecting plates.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] In the three-axis measuring device of the utility model, a connecting block with a measuring head installed at the bottom is slidably connected to the second sliding plate. A third electric slide rail with a third sliding plate is vertically arranged on the top of the second sliding plate. The top of the connecting block is fixedly connected to the third sliding plate. By slidably connecting the second sliding plate with the connecting block installed with the measuring head, and driving the connecting block to move up and down through the third sliding plate of the third electric slide rail, while realizing the three-axis movement of the measuring head, the position accuracy of the movement of the measuring head is greatly improved, the situation of the measuring head offset is reduced, and the measuring accuracy is improved. Further, two ends of a bidirectional screw located inside the cavity of the bearing table are respectively threadedly connected with moving plates. A connecting plate is installed on the top of the moving plate. A sliding groove for the sliding of the connecting plate is opened on the upper surface of the bearing table. A clamping plate connected to the connecting plate is correspondingly arranged above the bearing table and parallel to the moving plate. By driving the two moving plates to move towards each other through the bidirectional screw arranged parallel to the first electric slide rail, and driving the two clamping plates to move towards each other synchronously to clamp and fix the product, on the basis of improving the position accuracy of the measuring head, the position accuracy of the product is improved, thereby improving the overall measuring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 is the overall structural schematic diagram of the three-axis measuring device of the utility model;

[0016] Attached Figure 2 is the enlarged schematic diagram at A of the utility model Figure 1 ;

[0017] Attached Figure 3 is the partial structural schematic diagram of the three-axis measuring device of the utility model;

[0018] Attached Figure 4 is the enlarged schematic diagram at B of the utility model Figure 2 ;

[0019] In the above drawings: 1. Machine platform; 2. First electric slide rail; 3. First slide plate; 4. Second electric slide rail; 5. Second slide plate; 6. Third electric slide rail; 7. Third slide plate; 8. Measuring head; 9. Carrying platform; 10. Motor; 11. Bidirectional screw; 12. Moving plate; 13. Connecting plate; 14. Positioning plate; 15. Guide rod; 16. Anti-slip pad; 17. Connecting block; 18. Slide groove. Detailed implementation mode

[0020] The present patent can be further clearly understood through the following specific embodiments, but they do not limit the present patent.

[0021] Embodiment 1: A three-axis measuring device, comprising: a machine platform 1, a measuring head 8 located above the machine platform 1, a first electric slide rail 2 with a first slide plate 3 is respectively arranged on the left and right sides of the carrying platform 9, a second electric slide rail 4 with a second slide plate 5 is arranged between the two first slide plates 3 and perpendicular to the first electric slide rail 2, a connecting block 17 with a measuring head 8 installed at the bottom is slidably connected to the second slide plate 5, a third electric slide rail 6 with a third slide plate 7 is arranged vertically on the top of the second slide plate 5, and the top of the connecting block 17 is fixedly connected to the third slide plate 7;

[0022] During use, place the product on the surface of the carrying platform, start the motor to drive the bidirectional screw to rotate, and then drive the two moving plates to move relatively closer, so as to drive the positioning plate to move through the connecting plate, and use the two positioning plates to clamp the front and rear sides of the product. After clamping, control the motor to stop, thus greatly improving the position accuracy of the product;

[0023] A carrying platform 9 with a cavity 901 inside is arranged on the top of the machine platform 1. A bidirectional screw 11 is rotatably installed inside the cavity 901 in a manner parallel to the first electric slide rail 2. The two ends of the bidirectional screw 11 are respectively threadedly connected with a moving plate 12. A connecting plate 13 is installed on the top of the moving plate 12. A slide groove 18 for the connecting plate 13 to slide is opened on the upper surface of the carrying platform 9. A positioning plate 14 connected to the connecting plate 13 is arranged above the carrying platform 9 and parallel to the moving plate 12 correspondingly.

[0024] After clamping the product, drive the first slide plate to move through the first electric slide rail to realize the front and rear position adjustment of the measuring head, and drive the second slide plate to move through the second electric slide rail to realize the left and right position adjustment of the measuring head;

[0025] After the horizontal position adjustment of the measuring head is completed, the third slide plate is driven to move by the third electric slide rail. During the movement of the third slide plate, the connecting block is driven to slide with the second slide plate. On the basis of realizing the up-and-down position adjustment of the measuring head, the position accuracy of the movement of the connecting block is greatly improved, the jitter and deviation of the measuring head are reduced, and the position accuracy of the movement of the measuring head is improved.

[0026] Two connecting plates 13 are respectively arranged at both ends of the top of the above-mentioned moving plate 12.

[0027] A guide rod 15 is symmetrically arranged with respect to the above-mentioned bidirectional screw 11, and the above-mentioned moving plate 12 is slidably sleeved on the outer wall of the circumference of the above-mentioned guide rod 15.

[0028] Anti-slip pads 16 are arranged on the opposite sides of the two above-mentioned clamping plates 14, and the above-mentioned anti-slip pads 16 are located between the two connecting plates 13.

[0029] A motor 10 for driving the bidirectional screw 11 to rotate is arranged on the outer wall of the above-mentioned bearing platform 9.

[0030] Embodiment 2: A three-axis measuring device, comprising: a machine table 1, a measuring head 8 located above the machine table 1. First electric slide rails 2 each having a first slide plate 3 are respectively arranged on the left and right sides of the bearing platform 9. A second electric slide rail 4 having a second slide plate 5 is arranged between the two first slide plates 3 and perpendicular to the first electric slide rails 2. The second slide plate 5 is slidably connected with a connecting block 17 having a measuring head 8 installed at the bottom. A third electric slide rail 6 having a third slide plate 7 is arranged vertically at the top of the second slide plate 5. The top of the connecting block 17 is fixedly connected with the third slide plate 7;

[0031] By slidingly connecting the second slide plate with the connecting block installed with the measuring head, and driving the connecting block to move up and down by the third slide plate of the third electric slide rail, while realizing the three-axis movement of the measuring head, the position accuracy of the movement of the measuring head is greatly improved, the deviation of the measuring head is reduced, and the measuring accuracy is improved;

[0032] A bearing platform 9 having a cavity 901 inside is arranged on the top of the machine table 1. A bidirectional screw 11 is rotatably installed inside the cavity 901 in a manner parallel to the first electric slide rails 2. Both ends of the bidirectional screw 11 are respectively threadedly connected with a moving plate 12. A connecting plate 13 is installed on the top of the moving plate 12. A sliding groove 18 for the connecting plate 13 to slide is formed on the upper surface of the bearing platform 9. A clamping plate 14 connected with the connecting plate 13 is arranged above the bearing platform 9 and parallel to the corresponding moving plate 12.

[0033] Further, it drives two moving plates to move towards each other through a bidirectional screw arranged parallel to the first electric slide rail, and drives two clamping plates to move synchronously towards each other to clamp and fix the product. On the basis of improving the position accuracy of the measuring head, the position accuracy of the product is improved, thereby improving the overall measurement accuracy.

[0034] A connecting plate 13 is respectively arranged at both ends of the top of the above-mentioned moving plate 12.

[0035] A guide rod 15 is symmetrically arranged with respect to the above-mentioned bidirectional screw 11, and the above-mentioned moving plate 12 is slidably sleeved on the outer wall of the circumference of the above-mentioned guide rod 15.

[0036] At least two of the above-mentioned guide rods 15 are arranged on one side of the above-mentioned bidirectional screw 11.

[0037] The above-mentioned connecting plate 13 is located between two adjacent guide rods 15.

[0038] The working principle is as follows:

[0039] During use, place the product on the surface of the bearing platform, start the motor to drive the bidirectional screw to rotate, and then drive two moving plates to approach relatively, thereby driving the clamping plates to move through the connecting plates, and use two clamping plates to clamp the front and back sides of the product. After clamping, control the motor to stop, thereby greatly improving the position accuracy of the product;

[0040] After clamping the product, drive the first sliding plate to move through the first electric slide rail to realize the front and back position adjustment of the measuring head. Drive the second sliding plate to move through the second electric slide rail to realize the left and right position adjustment of the measuring head. After the horizontal position adjustment of the measuring head is completed, drive the third sliding plate to move through the third electric slide rail, and drive the connecting block to slide with the second sliding plate during the movement of the third sliding plate. On the basis of realizing the up and down position adjustment of the measuring head, the position accuracy of the movement of the connecting block is greatly improved, the situation of jitter and deviation of the measuring head is reduced, and the position accuracy of the movement of the measuring head is improved.

[0041] When adopting the above-mentioned three-axis measuring device, it is slidably connected with the connecting block installed with the measuring head through the second sliding plate, and drives the connecting block to move up and down through the third sliding plate of the third electric slide rail. While realizing the three-axis movement of the measuring head, the position accuracy of the movement of the measuring head is greatly improved, the situation of deviation of the measuring head is reduced, and the measurement accuracy is improved;

[0042] Further, it drives two moving plates to move towards each other through a bidirectional screw arranged parallel to the first electric slide rail, and drives two clamping plates to move synchronously towards each other to clamp and fix the product. On the basis of improving the position accuracy of the measuring head, the position accuracy of the product is improved, thereby improving the overall measurement accuracy.

[0043] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A three-axis measurement device, comprising: A machine platform (1), and a measuring head (8) located above the machine platform (1), characterized in that: a supporting platform (9) having a cavity (901) inside is arranged on the top of the machine platform (1), a first electric slide rail (2) having a first slide plate (3) is arranged on the left and right sides of the supporting platform (9), a second electric slide rail (4) having a second slide plate (5) is arranged between the two first slide plates (3) and perpendicular to the first electric slide rail (2), the second slide plate (5) is slidably connected to a connecting block (17) with a measuring head (8) installed at the bottom, a third electric slide rail (6) having a third slide plate (7) is vertically arranged on the top of the second slide plate (5), and the top of the connecting block (17) is fixedly connected to the third slide plate (7); A bidirectional screw rod (11) is installed inside the cavity (901) and is rotatably mounted in parallel with the first electric slide rail (2). Both ends of the bidirectional screw rod (11) are respectively threadedly connected to a movable plate (12). A connecting plate (13) is installed on the top of the movable plate (12). A sliding groove (18) for the connecting plate (13) to slide is provided on the upper surface of the support platform (9). A locking plate (14) connected to the connecting plate (13) is provided above the support platform (9) and parallel to the movable plate (12).

2. The three-axis measuring device according to claim 1, characterized in that: A connecting plate (13) is respectively provided at two ends of the top of the movable plate (12).

3. The three-axis measuring device according to claim 2, characterized in that: A guide rod (15) is symmetrically arranged with respect to the bidirectional screw rod (11), and the movable plate (12) is slidably sleeved on the circumferential outer wall of the guide rod (15).

4. The three-axis measuring device according to claim 3, characterized in that: At least two guide rods (15) are provided on one side of the bidirectional screw rod (11).

5. The three-axis measuring device according to claim 4, characterized in that: The connecting plate (13) is located between two adjacent guide rods (15).

6. The three-axis measurement device according to claim 2, characterized in that: An anti-skid pad (16) is provided on opposite sides of the two positioning plates (14), and the anti-skid pad (16) is located between the two connecting plates (13).

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