Measuring tool with high precision

Abstract

The utility model discloses a measuring tool with high precision, comprising a fixing frame, one side of the fixing frame is provided with an auxiliary positioning assembly, the top of the fixing frame is provided with a height measuring assembly, the upper surface of the fixing frame is fixedly connected with two fixing blocks, one side of each fixing block is fixedly connected with a connecting plate, and the other side of each fixing block is fixedly connected with a connecting plate. Second scale marks are arranged on the outer side faces of the connecting plates, a measuring plate is movably connected between the two connecting plates, a second lead screw is movably connected to one side of the measuring plate, a sliding block is movably connected to the outer side of the second lead screw, and a first lead screw is movably connected to the sliding block; according to the utility model, the fixing frame and the measuring plate can be in close contact, the influence of contact looseness on the measuring accuracy is avoided, the circular stamping part can be further positioned through the limiting block, and a worker can conveniently and directly know the size of the measured circular stamping part through the scale marks.

Description

Technical Field

[0001] This utility model relates to the field of measurement technology, and in particular to a high-precision measurement tool. Background Technology

[0002] Round stamped parts are commonly used in the assembly of various machines and equipment. After they are processed, their diameter and height dimensions need to be measured.

[0003] When measuring the diameter, two measuring plates are usually used to clamp the circular stamping part on both sides. The diameter of the circular stamping part is determined by the distance between the two measuring plates. However, a problem often occurs during the measurement process: the contact between the measuring plates and the circular stamping part is not tight enough. This looseness will greatly affect the accuracy of the measurement, resulting in lower measurement precision. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly accurate measuring tool.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision measuring tool includes a fixed frame, an auxiliary positioning component on one side of the fixed frame, a height measuring component on the top of the fixed frame, two fixed blocks fixedly connected to the upper surface of the fixed frame, a connecting plate fixedly connected to one side of each of the two fixed blocks, and the connecting plate being fixed to the fixed frame, a second scale line on the outer side of the connecting plate, a measuring plate movably connected between the two connecting plates, a second lead screw movably connected to one side of the measuring plate, a slider movably connected to the outer side of the second lead screw, a first lead screw movably connected to the slider, the bottom end of the first lead screw passing through the slider and movably connected to a wedge block, a first positioning post fixedly connected to one side of the measuring plate, and the first positioning post slidingly connected to the slider, a slot is opened on the upper surface of the fixed frame, multiple fixed rods are fixedly connected in the slot, and the wedge block is inserted into the space enclosed between two adjacent fixed rods.

[0007] As a further embodiment of this utility model, the auxiliary positioning component includes a slide groove, which is formed on the side plate portion of the top of the fixed frame. A bidirectional threaded rod is movably connected within the slide groove, and two limiting blocks are connected to the outer side of the bidirectional threaded rod.

[0008] As a further improvement of this utility model, the limiting block is slidably connected to the sliding groove.

[0009] As a further embodiment of this utility model, the height measuring component includes a guide rod, which is fixed to the top of the side plate of the fixing frame by bolts. A first scale line is provided on the outer side of the guide rod, and a positioning frame is movably connected to the outer side of the guide rod.

[0010] As a further embodiment of this utility model, a second positioning post is movably connected to the slider, and the bottom end of the second positioning post is fixed to the wedge block.

[0011] As a further embodiment of this utility model, the guide rod is located at the middle position along the length of the top side plate of the fixing frame.

[0012] As a further embodiment of this utility model, both ends of the bidirectional threaded rod pass through the fixing frame and are fixedly connected with knobs.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses the wedge block and the fixing rod to make the side plate and measuring plate on the top of the fixing frame and the circular stamping part more tightly in contact, so as to avoid loose contact affecting the accuracy of measurement and improve the detection effect of the device.

[0015] 2. The use of a bidirectional threaded rod in conjunction with a limiting block provides auxiliary positioning for the circular stamping part placed on the fixed frame, preventing the measuring plate from contacting and squeezing the circular stamping plate, which can easily cause displacement and improves the stability of the device.

[0016] 3. By using the first and second scale lines in combination, this utility model makes it easier for staff to directly understand the dimensions of the measured circular stamping parts, thus improving the convenience of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the front side of a high-precision measuring tool proposed in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the rear side of a high-precision measuring tool proposed in this utility model;

[0019] Figure 3 This is an enlarged structural diagram of part A of a high-precision measuring tool proposed in this utility model.

[0020] In the diagram: 1. Measuring plate; 2. Guide rod; 3. First scale line; 4. Bidirectional threaded rod; 5. Fixing frame; 6. Limiting block; 7. Slide groove; 8. Connecting plate; 9. Second scale line; 10. Fixing block; 11. Groove; 12. Fixing rod; 13. First positioning post; 14. Sliding block; 15. First lead screw; 16. Second positioning post; 17. Second lead screw; 18. Wedge block; 19. Positioning frame. Detailed Implementation

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0022] Reference Figures 1-3A high-precision measuring tool includes a fixed frame 5. An auxiliary positioning component is provided on one side of the fixed frame 5. The auxiliary positioning component includes a slide groove 7, which is formed in the side plate portion of the top of the fixed frame 5. A bidirectional threaded rod 4 is rotatably connected within the slide groove 7. Two limiting blocks 6 are connected to the outer side of the bidirectional threaded rod 4, and the limiting blocks 6 are slidably connected to the slide groove 7. A height measuring component is provided at the top of the fixed frame 5. The height measuring component includes a guide rod 2, which is fixed to the top of the side plate portion of the fixed frame 5 by bolts. A positioning frame 19 is slidably connected to the outer side of the guide rod 2. The operator places a circular stamping part in the middle position on the fixed frame 5 according to the position of the guide rod 2, ensuring one side of the circular stamping part contacts the side plate portion of the fixed frame 5, and then rotates... The bidirectional threaded rod 4 is moved, causing the limiting block 6 to move and contact the side of the circular stamping part, thereby further restricting the position of the circular stamping part. The guide rod 2 has a first scale line 3 on its outer side. The operator moves the positioning frame 19 downward along the guide rod 2, so that the bottom end of the positioning frame 19 contacts the top of the circular stamping part. The height of the circular stamping part is determined by observing the value of the top of the positioning frame 19 pointing to the first scale line 3. Two fixing blocks 10 are fixed to the upper surface of the fixing frame 5 by bolts. A connecting plate 8 is fixed to one side of each fixing block 10 by bolts, and the connecting plate 8 is fixed to the fixing frame 5. A second scale line 9 is provided on the outer side of the connecting plate 8. A measuring plate 1 is slidably connected between the two connecting plates 8. The diameter of the circular stamped part is determined by observing the value on the second scale line 9 pointed to by the measuring plate 1. A second lead screw 17 is rotatably connected to one side of the measuring plate 1. A slider 14 is threadedly connected to the outer side of the second lead screw 17. A first lead screw 15 is threadedly connected to the slider 14. The bottom end of the first lead screw 15 passes through the slider 14 and is rotatably connected to a wedge block 18. A first positioning post 13 is fixed to one side of the measuring plate 1 by bolts, and the first positioning post 13 is slidably connected to the slider 14. Rotating the second lead screw 17 causes the slider 14 to move along the first positioning post 13, thereby causing the wedge block 18 to be finely adjusted along the length direction of the slot 11. This prevents the bottom of the wedge block 18 from directly contacting the top of the fixing rod 12, which would restrict its downward movement. The fixing bracket 5... A slot 11 is provided on the upper surface, and multiple fixing rods 12 are welded into the slot 11. A wedge block 18 is inserted into the space enclosed between two adjacent fixing rods 12. The measuring plate 1 is moved along the connecting plate 8 until the measuring plate 1 contacts the other side of the circular stamping part. Then, the first lead screw 15 is rotated to move the wedge block 18 downward, so that the inclined surface on the wedge block 18 contacts the fixing rod 12. Since the fixing rod 12 remains fixed, the wedge block 18 moves downward, and under the action of its inclined surface, it causes the measuring plate 1 to move inward for fine adjustment. This makes the measuring plate 1 and the side plate part at the top of the fixing frame 5 more closely contact the circular stamping part, making the subsequent measurement more accurate. A second positioning post 16 is slidably connected to the slider 14.Furthermore, the bottom end of the second positioning post 16 is fixed to the wedge block 18, and the second positioning post 16 can guide the wedge block 18, enabling it to move stably.

[0023] In this utility model, it should be noted that the guide rod 2 is located at the middle position of the length of the top side plate of the fixed frame 5, which makes it easier for the staff to judge the placement position of the circular stamping part. Both ends of the bidirectional threaded rod 4 pass through the fixed frame 5 and are welded with knobs, which makes it convenient for the staff to rotate the bidirectional threaded rod 4.

[0024] Working principle: When it is necessary to measure the dimensions of a circular stamped part, since the guide rod 2 is located at the middle position of the length of the top side plate of the fixed frame 5, the operator first places the circular stamped part in the middle position on the fixed frame 5 according to the position of the guide rod 2, and makes one side of the circular stamped part contact the side plate of the fixed frame 5. Then, the knob is turned to make the bidirectional threaded rod 4 drive the limiting block 6 to move, so that the limiting block 6 contacts the circular stamped part, and the position of the circular stamped part is further restricted. Then, the measuring plate 1 is moved along the connecting plate 8 until the measuring plate 1 contacts the other side of the circular stamped part. Then, the first lead screw 15 is turned to move the wedge block 18 downward. The inclined surface of the wedge block 18 contacts the fixing rod 12. Since the fixing rod 12 remains fixed, the wedge block 18 moves downward, and under the action of its inclined surface, the measuring plate 1 moves inward for fine adjustment. This makes the measuring plate 1 and the side plate at the top of the fixing frame 5 more closely contact the circular stamping part, making the subsequent measurement more accurate. The operator moves the positioning frame 19 downward along the guide rod 2, so that the bottom end of the positioning frame 19 contacts the top of the circular stamping part. The height of the circular stamping part is known by observing the value on the first scale line 3 pointed to by the top of the positioning frame 19, and the diameter of the circular stamping part is known by observing the value on the second scale line 9 pointed to by the measuring plate 1.

[0025] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision measuring tool, comprising a fixing frame (5), one side of the fixing frame (5) is provided with an auxiliary positioning assembly, and the top of the fixing frame (5) is provided with a height measuring assembly, characterized in that, The upper surface of the fixing frame (5) is fixedly connected with two fixed blocks (10), one side of each of the two fixed blocks (10) is fixedly connected with a connecting plate (8), and the connecting plate (8) is fixed with the fixing frame (5), the outer side of the connecting plate (8) is provided with a second scale line (9), two measuring plates (1) are movably connected between the two connecting plates (8), one side of each of the two measuring plates (1) is movably connected with a second lead screw (17), the outer side of the second lead screw (17) is movably connected with a sliding block (14), the first lead screw (15) is movably connected with the sliding block (14), the bottom end of the first lead screw (15) penetrates through the sliding block (14) and is movably connected with a wedge-shaped block (18), one side of each of the two measuring plates (1) is fixedly connected with a first positioning column (13), and the first positioning column (13) is movably connected with the sliding block (14), the upper surface of the fixing frame (5) is provided with a notch (11), a plurality of fixed rods (12) are fixedly connected in the notch (11), and the wedge-shaped block (18) is inserted into the space between the two adjacent fixed rods (12).

2. The tool of claim 1, wherein, The auxiliary positioning assembly comprises a sliding groove (7), the sliding groove (7) is arranged on the side plate portion of the top of the fixing frame (5), and a bidirectional threaded rod (4) is movably connected in the sliding groove (7).

3. The high precision measuring tool of claim 2, wherein, The limiting block (6) is movably connected with the sliding groove (7).

4. The high precision measuring tool of claim 1, wherein, The height measuring assembly comprises a guide rod (2), the guide rod (2) is fixed on the top of the side plate portion of the fixing frame (5) through bolts, and the outer side of the guide rod (2) is provided with a first scale line (3).

5. The high precision measuring tool of claim 1, wherein, The second positioning column (16) is movably connected with the sliding block (14), and the bottom end of the second positioning column (16) is fixed with the wedge-shaped block (18).

6. The highly accurate measuring tool of claim 4, wherein, The guide rod (2) is located at the middle position of the length direction of the top side plate portion of the fixing frame (5).

7. The high precision measuring tool of claim 2, wherein, Both ends of the bidirectional threaded rod (4) penetrate through the fixing frame (5) and are fixedly connected with knobs.

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