A foldable tilt calibration tool

Abstract

This utility model belongs to the field of quality inspection technology, and specifically relates to a foldable tilt calibration tool, including a lower crossbar and an upper crossbar. A level bubble for leveling is fixedly installed at the front left of the lower crossbar. A tilt measuring component is installed at the front middle of the lower crossbar. An "L"-shaped positioning frame is fixedly installed at the front right of the lower crossbar. A dovetail block is fixed at the middle of the upper end of the lower crossbar. The upper crossbar is slidably sleeved on the outside of the dovetail block. An end cap is fixedly connected to the left end of the upper crossbar by a first bolt. Probe heads are fixed to the right ends of both the lower and upper crossbars. A fastening bolt is threadedly connected to the middle of the dovetail block, and a rubber washer is adhesively fitted to the outer top of the fastening bolt. A telescopic column is slidably installed inside the front end of the upper crossbar. This utility model device has a simple structure, accurate measurement, and is easy to operate. Furthermore, this tool is foldable, making it easy to reduce its size and carry.

Description

Technical Field

[0001] This utility model belongs to the field of quality inspection technology, and in particular relates to a foldable tilt calibration tool. Background Technology

[0002] In manufacturing, it is often necessary to process parts with various inclined surfaces with different angles. During the processing and quality inspection, in order to check whether the manufactured product parts meet the design requirements, it is necessary to measure and calibrate the inclined surfaces of the product parts.

[0003] Currently available tilt calibration tools are typically complex to operate and bulky, making them difficult to carry and use, thus affecting calibration speed and efficiency. Therefore, there is an urgent need to develop a simpler, faster, and more portable foldable tilt calibration tool. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a foldable tilt calibration tool that is reasonably designed, simple in structure, small in size, easy to use, and portable, thereby solving the problems existing in the prior art.

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

[0006] A foldable tilt calibration tool includes a lower crossbar and an upper crossbar. The upper crossbar is slidably connected to the upper end of the lower crossbar. A probe is fixed to the right end of both the lower and upper crossbars. A level bubble for leveling is fixed to the front left of the lower crossbar. A tilt measuring assembly is installed at the front middle of the lower crossbar. The tilt measuring assembly includes a movable rod and an angle plate. The angle plate is fixedly embedded in the outer wall of the front end of the lower crossbar. One end of the movable rod is rotatably connected to the center of the angle plate via a bearing. A pointer is fixed to one end of the movable rod. A through groove extending along the length direction is formed inside the movable rod. A telescopic column located directly above the center of the angle plate is slidably connected to the front end of the upper crossbar within the through groove. A positioning frame for supporting the other end of the movable rod is fixed to the front right of the lower crossbar.

[0007] Preferably, a dovetail block is fixed at the upper middle part of the lower crossbar, and a dovetail groove adapted to the dovetail block is opened at the lower middle part of the upper crossbar. The upper crossbar is slidably sleeved on the outside of the dovetail block through the dovetail groove and the dovetail block.

[0008] Preferably, a groove is provided at the middle of the top surface of the upper crossbar. The groove and the dovetail groove are of equal length and are interconnected. A fastening bolt for braking is provided in the groove, and the end of the fastening bolt is threadedly connected to the middle of the dovetail block.

[0009] Preferably, a rubber washer is bonded to the outer side of the top of the fastening bolt, and two rubber strips are bonded to the upper end face of the upper crossbar. The two rubber strips are located on the front and rear sides of the slide groove, respectively, and the distance between the two rubber strips on opposite sides is equal to the diameter of the rubber washer.

[0010] Preferably, the left end of the upper crossbar is fixedly connected to an end cap by a first bolt.

[0011] Preferably, a second bolt is threadedly installed at the middle of the right vertical section of the positioning frame, and a positioning hole communicating with the through groove is opened at the middle of the other end of the movable rod, the positioning hole being adapted to the second bolt.

[0012] Preferably, the connection point between the movable rod and the lower crossbar coincides with the center of the angle plate.

[0013] Preferably, the "0" mark on the angle plate is located at the center of its bottom end, and the angle plate scale values ​​are set to increase from the center outwards towards both sides.

[0014] Preferably, the front end of the upper crossbar has a circular hole, and a spring is fixedly connected to the telescopic column inside the circular hole. The telescopic column forms an elastic telescopic structure inside the upper crossbar through the spring, and one end of the telescopic column located outside the upper crossbar is guided and slidably connected in the through groove.

[0015] Preferably, the right end of the probe is cone-shaped, and when the right tips of the two probes are on the same vertical line, the movable rod is in a vertical state and the pointer points to the "0" mark on the angle plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, a level bubble is used to keep both the lower and upper crossbars horizontal. Then, the upper crossbar is moved horizontally to the right until the right tips of both probes are in contact with the inclined surface of the component to be measured. As the upper crossbar moves, the telescopic column can push the movable rod to rotate, making the movable rod parallel to the inclined surface of the component to be measured. At this point, the tilt angle of the movable rod can be measured through the pointer and angle plate at the end of the movable rod, thus obtaining the tilt angle of the component to be measured. The device has a simple structure, accurate measurement, and is easy to operate.

[0018] This utility model, by tightening the fastening bolts, tightly presses and squeezes the rubber washer and rubber strip together, facilitating the positioning of the relative positions between the upper and lower crossbars. This allows for the calibration of subsequent test components and the rapid screening of defective products. After use, the telescopic column can be squeezed to retract towards the inside of the upper crossbar and disengage from the through groove. At this point, the movable rod can be rotated to a horizontal position, and the second bolt can be tightened to insert it into the positioning hole, thus positioning the horizontal movable rod. This completes the folding of the tool, reducing its size and making it easy to carry. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0020] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0021] Figure 2 This is a side view of the upper crossbar and dovetail groove of this utility model.

[0022] Figure 3 This is a side cross-sectional view of the lower crossbar and dovetail block of this utility model.

[0023] Figure 4 This is a schematic diagram of the tilt measuring component of this utility model in its folded state.

[0024] Figure 5 This is a schematic diagram of the calibration working state structure of this utility model;

[0025] Figure 6 This is a front view structural diagram of the lower crossbar and dovetail block of this utility model.

[0026] In the picture:

[0027] 1. Lower crossbar; 2. Level bubble; 3. Inclination measuring assembly; 31. Movable rod; 32. Through slot; 33. Positioning hole; 34. Pointer; 35. Angle plate; 4. Dovetail block; 5. Upper crossbar; 6. Dovetail groove; 7. End cap; 8. First bolt; 9. Probe; 10. Slide groove; 11. Rubber strip; 12. Fastening bolt; 13. Rubber washer; 14. Spring; 15. Telescopic column; 16. Positioning frame; 17. Second bolt. Detailed Implementation

[0028] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0029] like Figure 1-6As shown in the figure, the folding tilt calibration tool of this utility model includes a lower crossbar 1 and a level bubble 2. A level bubble 2 for detecting level is fixedly installed at the left front of the lower crossbar 1. A tilt measuring component 3 is installed at the middle front of the lower crossbar 1. An "L"-shaped positioning frame 16 for positioning and supporting the other end of the tilt measuring component 3 is fixedly installed at the right front of the lower crossbar 1. A dovetail block 4 is fixedly installed at the middle of the upper end of the lower crossbar 1. An upper crossbar 5 is slidably sleeved on the outer side of the dovetail block 4. An end cap 7 is fixedly connected to the left end of the upper crossbar 5 by a first bolt 8. A probe head 9 is fixed to the right end of both the lower crossbar 1 and the upper crossbar 5. A fastening bolt 12 is threadedly connected to the middle position of the dovetail block 4. A rubber washer 13 is adhesively sleeved on the outer side of the top of the fastening bolt 12. A telescopic column 15 that can slide in the front and rear directions is provided inside the front end of the upper crossbar 5. A spring 14 is fixedly connected between the telescopic column 15 and the upper crossbar 5.

[0030] Based on the above structure, preferably, the probe head 9 is a conical block structure.

[0031] As a preferred embodiment, based on the above structure, the bottom center of the upper crossbar 5 is provided with a dovetail groove 6 that matches the dovetail block 4, and the top center of the upper crossbar 5 is provided with a sliding groove 10. The dovetail groove 6 and the sliding groove 10 are of equal length and are interconnected.

[0032] In this embodiment, the dovetail block 4 and dovetail groove 6 are used to facilitate the stable installation and horizontal sliding adjustment of the upper crossbar 5 above the lower crossbar 1.

[0033] As a preferred embodiment, based on the above structure, two rubber strips 11 are further bonded to the upper end face of the upper crossbar 5. The two rubber strips 11 are located on the front and rear sides of the slide groove 10 respectively, and the distance between the two rubber strips 11 on the opposite side is equal to the diameter of the rubber washer 13.

[0034] In this embodiment, when the fastening bolt 12 is tightened, the rubber washer 13 and the rubber strip 11 can be tightly pressed together, which facilitates the positioning of the relative position between the upper crossbar 5 and the lower crossbar 1.

[0035] As a preferred embodiment, based on the above structure, the tilt measuring component 3 further includes a movable rod 31, a through groove 32, a positioning hole 33, a pointer 34, and an angle plate 35. One end of the movable rod 31 is bearing-connected to the front outer wall of the lower crossbar 1. The movable rod 31 has a through groove 32 inside. The other end of the movable rod 31 is rotatably supported on the positioning frame 16. The middle of the other end of the movable rod 31 has a positioning hole 33 that communicates with the through groove 32. The pointer 34 is fixedly installed on the outer wall of the end of the movable rod 31 that is connected to the lower crossbar 1. The angle plate 35 is embedded and fixedly installed on the front outer wall of the lower crossbar 1.

[0036] In this embodiment, the tilt angle of the movable rod 31 can be measured by using the pointer 34 and the angle plate 35 at the end of the movable rod 31. Since the movable rod 31 can be in a parallel state with the tilt surface of the component under test when the right tips of the two probes 9 are in contact with the tilt surface of the component under test, the tilt angle of the component under test can be obtained. The device has a simple structure, accurate measurement, and is easy to operate.

[0037] As a preferred embodiment, based on the above structure, the positioning hole 33 is further adapted to the second bolt 17, and the second bolt 17 is threadedly installed at the middle position of the right vertical section of the positioning frame 16.

[0038] In this embodiment, when the movable rod 31 is rotated to a horizontal position for folding, the second bolt 17 can be tightened so that one end is inserted into the positioning hole 33, thereby positioning the horizontal movable rod 31, which facilitates the reduction of the tool's size and makes it easy to carry.

[0039] As a preferred embodiment, based on the above structure, the connection point between the movable rod 31 and the lower crossbar 1 coincides with the center of the angle plate 35, the "0" mark of the angle plate 35 is located at the middle of its bottom end, and the scale value of the angle plate 35 is set to increase from the middle to both sides.

[0040] In this embodiment, the movable rod 31 can drive the pointer 34 to rotate synchronously, so that the tilt angle can be obtained quickly and accurately according to the angle mark on the angle plate 35 pointed to by the pointer 34.

[0041] As a preferred embodiment, based on the above structure, the telescopic column 15 further forms an elastic telescopic structure inside the upper crossbar 5 by means of the spring 14, and one end of the telescopic column 15 located outside the upper crossbar 5 is guided to slide in the through groove 32.

[0042] In this embodiment, when the upper crossbar 5 moves, the movable rod 31 can be rotated by the extensible column 15, so that the movable rod 31 is parallel to the inclined surface of the component to be measured, which facilitates the measurement of the inclination angle.

[0043] As a preferred embodiment, based on the above structure, the right end of the probe 9 is further shaped into a pointed cone. When the right tips of the two probes 9 are on the same vertical line, the movable rod 31 is in a vertical state and the pointer 34 points to the "0" mark on the angle plate 35.

[0044] In this embodiment, when the right tips of the two probes 9 are on the same vertical line, the pointer 34 is at the "0" mark on the angle plate 35. Thus, when the angle between the tips of the two probes 9 changes, the pointer 34 can quickly reflect the angle value, making the tool easy to use.

[0045] The working principle of this utility model is as follows:

[0046] In use, first loosen the fastening bolt 12 to make the upper crossbar 5 slidable. Then, hold the tool and make the tip of the probe 9 at the right end of the lower crossbar 1 contact the inclined surface of the part to be measured. At the same time, use the level bubble 2 to make the lower crossbar 1 in a standard horizontal state. Then, manually push the upper crossbar 5 to make it move steadily to the right under the action of the dovetail block 4 and the dovetail groove 6 until the tip of the probe 9 at the right end of the upper crossbar 5 also contacts the inclined surface of the part to be measured. When the upper crossbar 5 moves, the movable rod 31 can be rotated by the pressure of the telescopic column 15, so that the movable rod 31 is parallel to the inclined surface of the part to be measured. The tilt angle of the movable rod 31 can be measured by the pointer 34 and the angle plate 35 at the end of the movable rod 31, so that the tilt angle of the part to be measured can be obtained. The device has a simple structure, accurate measurement, and is easy to operate.

[0047] By tightening the fastening bolt 12, the rubber washer 13 and the rubber strip 11 are tightly pressed together, which facilitates the positioning of the upper crossbar 5. The adjusted movable rod 31 can then be used to calibrate the subsequent test parts one by one, and unqualified products can be quickly screened out.

[0048] After the tool is used up, the telescopic column 15 can be manually squeezed to retract into the upper crossbar 5. When the telescopic column 15 is disengaged from the through groove 32, the movable rod 31 can be rotated to a horizontal position and the second bolt 17 can be tightened to insert it into the positioning hole 33. This can position the horizontal movable rod 31 and complete the folding of the tool, which reduces its size and makes it easier to carry. This makes the tool more practical.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A foldable tilt calibration tool, characterized in that: It includes a lower crossbar (1) and an upper crossbar (5), the upper crossbar (5) being slidably connected to the upper end of the lower crossbar (1). Both the lower crossbar (1) and the upper crossbar (5) have probes (9) fixed to their right ends. A level bubble (2) for detecting horizontality is fixedly provided at the left front of the lower crossbar (1). An inclination measuring assembly (3) is installed at the middle front of the lower crossbar (1). The inclination measuring assembly (3) includes a movable rod (31) and an angle plate (35). The angle plate (35) is fixedly embedded in the front outer wall of the lower crossbar (1). One end of the movable rod (31) is rotatably connected to the center of the angle plate (35) via a bearing. A pointer (34) is fixedly provided at one end of the movable rod (31). A through groove (32) extending along the length direction is provided inside the movable rod (31). A telescopic column (15) located directly above the center of the angle plate (35) is slidably provided inside the front end of the upper crossbar (5). The telescopic column (15) is slidably connected in the through groove (32). A positioning frame (16) for supporting the other end of the movable rod (31) is fixedly provided on the right front of the lower crossbar (1).

2. The folding tilt calibration tool according to claim 1, characterized in that: The lower crossbar (1) has a dovetail block (4) fixed at the middle of its upper end, and the upper crossbar (5) has a dovetail groove (6) that matches the dovetail block (4) at the middle of its bottom end. The upper crossbar (5) is slidably sleeved on the outside of the dovetail block (4) through the dovetail groove (6) and the dovetail block (4).

3. A folding tilt calibration tool according to claim 2, characterized in that: A groove (10) is provided at the middle of the top surface of the upper crossbar (5). The groove (10) and the dovetail groove (6) are of equal length and are connected to each other. A fastening bolt (12) for braking is provided in the groove (10). The rod end of the fastening bolt (12) is threadedly connected to the middle of the dovetail block (4).

4. A folding tilt calibration tool according to claim 3, characterized in that: A rubber washer (13) is bonded to the outer side of the top of the fastening bolt (12), and two rubber strips (11) are bonded to the upper end face of the upper crossbar (5). The two rubber strips (11) are located on the front and rear sides of the slide groove (10) respectively, and the distance between the two rubber strips (11) on the opposite side is equal to the diameter of the rubber washer (13).

5. A folding tilt calibration tool according to claim 1, characterized in that: The left end of the upper crossbar (5) is fixedly connected to an end cap (7) by a first bolt (8).

6. A folding tilt calibration tool according to claim 1, characterized in that: The second bolt (17) is threadedly installed in the middle of the vertical section on the right side of the positioning frame (16), and a positioning hole (33) connected to the through groove (32) is opened in the middle of the other end of the movable rod (31). The positioning hole (33) is compatible with the second bolt (17).

7. A folding tilt calibration tool according to claim 1, characterized in that: The "0" mark of the angle plate (35) is located at the middle of its bottom end, and the scale value of the angle plate (35) is set to increase from the middle to both sides.

8. A folding tilt calibration tool according to claim 1, characterized in that: The upper crossbar (5) has a round hole at its front end. A spring (14) is fixedly connected to the telescopic column (15) inside the round hole. The telescopic column (15) forms an elastic telescopic structure inside the upper crossbar (5) through the spring (14). One end of the telescopic column (15) located outside the upper crossbar (5) is guided and slidably connected to the through groove (32).

9. A folding tilt calibration tool according to claim 1, characterized in that: The right end of the probe (9) is cone-shaped. When the right tips of the two probes (9) are on the same vertical line, the movable rod (31) is in a vertical state and the pointer (34) points to the "0" mark of the angle plate (35).

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