Double-needle gap-adjustable knife edge angle square

Abstract

The utility model relates to the technical field of knife edge angle rulers, in particular to a double-needle gap-adjustable knife edge angle ruler which comprises a ruler seat, a limiting hole is formed in the ruler seat, a threaded rod is arranged in the limiting hole through internal threads, a limiting clamping block is fixedly installed at the upper end of the threaded rod, and a detection needle with the end of a conical structure is movably arranged in the limiting clamping block in a sleeved mode. The ruler seat is also provided with a placing groove for placing the detection needle, and the outer wall of the other end of the threaded rod is sleeved with a knurled nut. According to the knurled nut detection device, the detection needle is movably arranged in the limiting clamping block and is matched with the limiting clamping block to move towards the knurled nut, the detection needle is extruded and limited, detection needles of different models can be conveniently replaced according to the size of a mold, and the application range of the device is wider; the detection needle is used for detection in a narrow gap, and detection errors caused by the fact that the detection needle cannot enter a narrow area are avoided.

Description

Technical Field

[0001] This utility model relates to the field of knife-edge angle ruler technology, and in particular to a double-needle adjustable gap knife-edge angle ruler. Background Technology

[0002] A knife-edge ruler is a high-precision measuring tool mainly used to check the perpendicularity, straightness, or flatness of workpieces, and is widely used, especially in the fields of machining, mold making, and precision instruments.

[0003] The knife-edge angle gauge is attached to the mold reference surface through the gauge base, and the angle of the mold is checked by the detection probe to check whether the angle of the mold is qualified. However, the existing knife-edge angle gauge is usually an L-shaped one-piece structure. When the gauge base and the mold reference surface are attached, the mold does not have enough width to place the detection probe due to the different mold size, so the knife-edge angle gauge cannot check the mold. It is necessary to replace the knife-edge angle gauge with a knife-edge angle gauge of different sizes to check the mold. Moreover, traditional measuring tools cannot enter the narrow area of ​​<0.8mm due to structural limitations, resulting in a mold shadow detection error of ≥0.02mm and low repair efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the inability to replace the detection needle and the inability of the detection needle to enter narrow areas in the prior art, and to propose a double-needle adjustable gap knife edge ruler.

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

[0006] A double-needle adjustable gap knife-edge ruler includes a ruler base with a limiting hole. A threaded rod is provided in the limiting hole through an internal thread. A limiting clamping block is fixedly installed at the upper end of the threaded rod. A detection needle with a tapered end is movably sleeved in the limiting clamping block. The ruler base also has a placement groove for placing the detection needle. A knurled nut is sleeved on the outer wall of the other end of the threaded rod.

[0007] Preferably, the ruler base has a mounting hole, a micrometer adjuster is fixedly installed in the mounting hole, and a limiting cavity communicating with the mounting hole is also provided in the ruler base, with one end of the micrometer adjuster disposed in the limiting cavity.

[0008] Preferably, the micrometer adjuster has two symmetrically arranged first fixed seats fixedly installed on its upper end, and a mounting shaft is rotatably installed between the two first fixed seats. A connecting rod is fixedly installed on the mounting shaft relative to the two first fixed seats, and a second fixed seat is rotatably installed on the upper end of the connecting rod.

[0009] Preferably, the ruler base also has two symmetrically arranged placement holes, each of which has a rotating shaft rotatably installed. Each of the two rotating shafts has a transmission rod fixedly installed on its outer wall, and the two transmission rods are respectively rotatably installed at both ends of the mounting shaft.

[0010] Preferably, two symmetrically arranged limit blocks with a U-shaped structure are slidably disposed in the limiting cavity, and each of the two limit blocks has a sliding groove at its bottom end. The two second fixed seats are respectively slidably disposed in the two sliding grooves.

[0011] Preferably, the connecting rod is disposed between the two transmission rods, and the limiting clamping block is disposed between the two limiting blocks.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model uses a detection needle that is movably set inside a limiting clamping block. The limiting clamping block moves toward the knurled nut to squeeze and limit the detection needle. It also makes it easy to replace different models of detection needles according to the size of the mold, thus making the equipment more widely applicable.

[0014] 2. This utility model uses a cone-shaped detection needle to perform detection in narrow gaps, avoiding detection errors caused by the detection needle being unable to enter the narrow area.

[0015] 3. This utility model uses a micrometer adjuster to drive the mounting shaft to move up and down, adjust the inclination angle of the transmission rod, and make the two ends of the transmission rod move up and down alternately, which facilitates the adjustment of the included angle between the detection needle and the scale base in both forward and reverse directions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the double-needle adjustable gap knife edge angle ruler proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the micron-level adjuster and connecting rod of the dual-needle adjustable gap knife-edge angle ruler proposed in this utility model;

[0018] Figure 3 This is a partial cross-sectional schematic diagram of the double-needle adjustable gap blade angle ruler proposed in this utility model;

[0019] Figure 4 This is a partial enlarged view of region A of the double-needle adjustable gap knife edge angle ruler proposed in this utility model;

[0020] Figure 5 This is a front sectional view of the double-needle adjustable gap blade angle ruler proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the limiting clamping block and the limiting block of the double-needle adjustable gap knife edge angle ruler proposed in this utility model.

[0022] In the diagram: 1. Ruler base; 2. Threaded rod; 3. Limiting clamping block; 4. Knurled nut; 5. Detection needle; 6. Micrometer adjuster; 7. Limiting cavity; 8. First fixed seat; 9. Mounting shaft; 10. Connecting rod; 11. Placement hole; 12. Transmission rod; 13. Rotating shaft; 14. Second fixed seat; 15. Limiting block; 16. Sliding groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-6 The double-needle adjustable gap knife-edge ruler includes a ruler base 1. A limit hole is opened on the ruler base 1. A threaded rod 2 is provided in the limit hole through an internal thread. A limit clamping block 3 is fixedly installed on the upper end of the threaded rod 2. A detection needle 5 with a tapered end is movably sleeved in the limit clamping block 3. A placement groove for placing the detection needle 5 is also opened on the ruler base 1. A knurled nut 4 is sleeved on the outer wall of the other end of the threaded rod 2.

[0025] The ruler base 1 has an installation hole, in which a micrometer adjuster 6 is fixedly installed. The ruler base 1 also has a limiting cavity 7 that communicates with the installation hole, and one end of the micrometer adjuster 6 is set in the limiting cavity 7. Two symmetrically arranged limiting blocks 15 with a U-shaped structure are slidably arranged in the limiting cavity 7. The bottom end of each limiting block 15 has a sliding groove 16. The two second fixed seats 14 are respectively slidably arranged in the two sliding grooves 16.

[0026] Two symmetrically arranged first fixed seats 8 are fixedly installed on the upper end of the micrometer adjuster 6, and a mounting shaft 9 is rotatably installed between the two first fixed seats 8. A connecting rod 10 is fixedly installed on the mounting shaft 9 relative to the two first fixed seats 8. A second fixed seat 14 is rotatably installed on the upper end of the connecting rod 10. The connecting rod 10 is located between two transmission rods 12. Through the rotation of the transmission rods 12, the two limit blocks 15 move up and down alternately. The detection needle 5 can be precisely calibrated at a 90° angle ±0.005°. The limit clamping block 3 is located between the two limit blocks 15.

[0027] The ruler base 1 also has two symmetrically arranged placement holes 11. A rotating shaft 13 is rotatably installed in each of the two placement holes 11. A transmission rod 12 is fixedly installed on the outer wall of each of the two rotating shafts 13, and the two transmission rods 12 are rotatably installed at both ends of the mounting shaft 9.

[0028] It should be noted that the specific model and specifications of the micrometer regulator 6 need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] In use, the detection needle 5 is slidably placed in the limiting clamping block 3, the threaded rod 2 fixedly installed at the bottom of the limiting clamping block 3 is placed into the limiting hole, and the detection needle 5 is placed in the placement groove. By rotating the knurled nut 4, the knurled nut 4 rotates on the threaded rod 2 and moves towards the limiting clamping block 3, so that the threaded rod 2 pulls the limiting clamping block 3 towards the knurled nut 4, thereby squeezing and fixing the detection needle 5 placed in the placement groove, preventing the detection needle 5 from moving, and facilitating the replacement of the detection needle 5.

[0031] When an angle is generated between the detection needle 5 and the ruler base 1, the adjustment of the micrometer adjuster 6 causes the two first fixed seats 8 to push the mounting shaft 9 upward, and the mounting shaft 9 to push one end of the connecting rod 10, causing the other end of the connecting rod 10 to push the second fixed seat 14 upward. During the upward movement of the second fixed seat 14, the limiting block 15 is simultaneously pushed upward and slides in the sliding groove 16, causing the limiting block 15 to push the detection needle 5 to deflect, thereby adjusting the angle and preventing an angle from forming between the detection needle 5 and the ruler base 1.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-needle adjustable gap knife-edge ruler, including a ruler base (1), characterized in that, The ruler base (1) has a limiting hole, and a threaded rod (2) is provided in the limiting hole through an internal thread. A limiting clamping block (3) is fixedly installed at the upper end of the threaded rod (2). A detection needle (5) with a tapered end is movably sleeved in the limiting clamping block (3). The ruler base (1) also has a placement groove for placing the detection needle (5). A knurled nut (4) is sleeved on the outer wall of the other end of the threaded rod (2).

2. The double-needle adjustable gap blade angle ruler according to claim 1, characterized in that, The ruler base (1) has an installation hole, in which a micrometer adjuster (6) is fixedly installed. The ruler base (1) also has a limiting cavity (7) that communicates with the installation hole, and one end of the micrometer adjuster (6) is located in the limiting cavity (7).

3. The double-needle adjustable gap blade angle ruler according to claim 2, characterized in that, The micrometer adjuster (6) has two symmetrically arranged first fixed seats (8) fixedly installed on its upper end, and a mounting shaft (9) is rotatably installed between the two first fixed seats (8). A connecting rod (10) is fixedly installed on the mounting shaft (9) relative to the two first fixed seats (8), and a second fixed seat (14) is rotatably installed on the upper end of the connecting rod (10).

4. The double-needle adjustable gap blade angle ruler according to claim 3, characterized in that, The ruler base (1) also has two symmetrically arranged placement holes (11), and a rotating shaft (13) is rotatably installed in each of the two placement holes (11). A transmission rod (12) is fixedly installed on the outer wall of each of the two rotating shafts (13), and the two transmission rods (12) are rotatably installed at both ends of the mounting shaft (9).

5. The double-needle adjustable gap blade angle ruler according to claim 4, characterized in that, Two symmetrically arranged limit blocks (15) with a U-shaped structure are slidably arranged inside the limiting cavity (7). The bottom ends of the two limit blocks (15) are provided with sliding grooves (16). The two second fixing seats (14) are respectively slidably arranged in the two sliding grooves (16).

6. The double-needle adjustable gap blade angle ruler according to claim 5, characterized in that, The connecting rod (10) is disposed between the two transmission rods (12), and the limiting clamping block (3) is disposed between the two limiting blocks (15).

Images