Flatness measuring equipment

Abstract

The utility model provides flatness measuring equipment, which comprises a base, a stand column arranged on the edge of one side of the upper surface of the base, an adjusting arm arranged on the upper side of the base, a first vertical hole processed at one end of the adjusting arm, a second vertical hole processed at one end of the adjusting arm far away from the first vertical hole, and a digital display altimeter inserted in the second vertical hole and used for measuring flatness. A first clamping lug and a second clamping lug matched with each other are installed at the end, close to the second vertical hole, of the adjusting arm, a third clamping lug and a fourth clamping lug matched with each other are installed at the end, close to the first vertical hole, of the adjusting arm, a small knob head is arranged on the side, away from the second clamping lug, of the first clamping lug, and a large knob head is arranged on the side, away from the third clamping lug, of the fourth clamping lug. One side of the small knob head is provided with a connecting piece used for reducing the width of the first gap, and one side of the large knob head is provided with a connecting piece used for reducing the width of the second gap.

Description

Technical Field

[0001] The utility model relates to a flatness measuring device, belonging to the flatness measuring field. Background Art

[0002] The digital altimeter is a commonly used device for flatness measurement. To facilitate the adjustment of the height of the digital altimeter, the digital altimeter is installed at one end of an adjusting arm, and the other end of the adjusting arm is mounted on the column of the base. To facilitate the adjustment of the relative position of the adjusting arm and the base and the disassembly and assembly of the digital altimeter, two matching clamping ears are installed at both ends of the adjusting arm, and a clamping screw is threadedly connected between the two matching clamping ears. During the tightening process of the clamping screw, the head of the clamping screw will slide relative to the surface of the adjusting arm and cause wear to the adjusting arm. Therefore, it is necessary to use wear-resistant material to make the adjusting arm to reduce the degree of wear, thereby increasing the production cost of the adjusting arm. Therefore, it is necessary to design a flatness measuring device that reduces the production cost of the adjusting arm. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a flatness measuring device to solve the problems raised in the above-mentioned background technology. The utility model does not need to use materials with good wear resistance to make the adjustment arm, thereby reducing the production cost of the adjustment arm.

[0004] In order to achieve the above-mentioned object, the utility model is realized by the following technical scheme: a flatness measuring device, comprising a base, a column is installed at an edge of one side of the upper surface of the base, an adjusting arm is arranged on the upper side of the base, a first vertical hole is processed on one end of the adjusting arm, the column passes through the first vertical hole, a second vertical hole is processed on one end of the adjusting arm away from the first vertical hole, a digital display height gauge for measuring flatness is inserted in the second vertical hole, a first clamping ear and a second clamping ear are installed on one end of the adjusting arm close to the second vertical hole, a first gap communicating with the second vertical hole is provided between the first clamping ear and the second clamping ear, a third clamping ear and a fourth clamping ear are installed on one end of the adjusting arm close to the first vertical hole, a second gap communicating with the first vertical hole is provided between the third clamping ear and the fourth clamping ear, a small knob head is provided on the side of the first clamping ear away from the second clamping ear, a large knob head is provided on the side of the fourth clamping ear away from the third clamping ear, a connecting piece for reducing the width of the first gap is installed on one side of the small knob head, and a connecting piece for reducing the width of the second gap is installed on one side of the large knob head.

[0005] Furthermore, the connecting piece includes a boss, one side of the small knob head and one side of the large knob head are both equipped with bosses, one end of the boss is connected and fixed with a pressure column, the diameter of the pressure column is smaller than the diameter of the boss, and the end of the pressure column away from the boss is connected and fixed with a threaded head, one side of the first clamping ear and one side of the fourth clamping ear are both provided with through holes, the two threaded heads respectively penetrate the two through holes, and the two threaded heads are respectively threadedly connected to the second clamping ear and the third clamping ear, an annular groove is provided on the outer surface of the pressure column, a ring is slidably installed in the annular groove, a pressure ring that is in sliding contact with the pressure column is sleeved on the threaded head, and the pressure ring is connected and fixed to the ring through a connecting rod.

[0006] Furthermore, one side of the second clamping ear and one side of the third clamping ear are each provided with a circular hole aligned with the through hole, and a limit frame is provided on the side of the two circular holes facing away from the through hole, and the two limit frames are respectively connected and fixed to the second clamping ear and the third clamping ear, and a positioning block is inserted in the limit frame, and one side of the positioning block is provided with a threaded hole matching with a threaded head, and the threaded head is threadedly connected in the threaded hole.

[0007] Furthermore, the cross section of the limiting frame is a rectangle, and the cross section of the positioning block is a rectangle.

[0008] Furthermore, the first clamping ear, the second clamping ear and the adjusting arm are an integrally formed structure, and the third clamping ear, the fourth clamping ear and the adjusting arm are an integrally formed structure.

[0009] Furthermore, a placement platform is provided on the upper side of the base, the placement platform and the base are plugged into each other, and the placement platform is arranged on the lower side of the digital display altimeter.

[0010] Beneficial effects of the utility model:

[0011] 1. Install convex columns between the large knob head and the pressure column and between the small knob head and the pressure column, so as to increase the distance between the large knob head and the fourth clamping ear and the distance between the small knob head and the first clamping ear, providing sufficient space for people to grasp the large knob head and the small knob head.

[0012] 2. When the width of the first gap and the second gap is reduced, the two pressure rings contact the first clamping ear and the second clamping ear respectively. When the width of the first gap and the second gap is further reduced, the two pressure rings stop rotating due to the friction resistance. At this time, the ring rotates relative to the pressure column in the annular groove, thereby preventing sliding friction between the pressure column and the first clamping ear and the second clamping ear, and minimizing the damage to the first clamping ear and the second clamping ear caused by the sliding friction. Therefore, it is not necessary to use materials with good wear resistance to make the adjustment arm, thereby reducing the production cost of the adjustment arm.

[0013] 3. The positioning block is inserted into the limit frame to limit the position of the positioning block, so that the threaded head is threadedly connected to the threaded hole. By adjusting the length of the threaded head in the threaded hole, it is convenient to adjust the relative position between the adjusting arm and the column and to disassemble and assemble the digital display height gauge. Since the threaded hole is processed on the positioning block, there is no need to increase the thickness of the second clamping ear and the third clamping ear to improve the installation stability of the threaded head, which is conducive to further reducing the production cost of the adjusting arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a structural schematic diagram of a flatness measuring device of the utility model;

[0016] Figure 2 It is a schematic diagram of the assembly of a threaded head, a pressure ring, a pressure column, a ring ring, a convex column and a large knob head in a flatness measuring device of the utility model;

[0017] Figure 3 It is a schematic diagram of the assembly of a positioning block, a limit frame and an adjustment arm in a flatness measuring device of the utility model;

[0018] In the figure: 1-base, 2-placing platform, 3-small knob head, 4-first clamping ear, 5-second clamping ear, 6-digital display height gauge, 7-column, 8-third clamping ear, 9-fourth clamping ear, 10-large knob head, 11-adjusting arm, 12-convex column, 13-connecting rod, 14-threaded head, 15-pressure ring, 16-ring, 17-pressure column, 18-threaded hole, 19-limit frame, 20-positioning block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 The utility model provides a technical solution: a flatness measuring device, including a base 1, a column 7 is installed at the edge of one side of the upper surface of the base 1, an adjusting arm 11 is arranged on the upper side of the base 1, and a first vertical hole is processed at one end of the adjusting arm 11, so that the column 7 passes through the first vertical hole, so as to facilitate the height adjustment of the adjusting arm 11 up and down along the column 7.

[0021] See also Figure 1A second vertical hole is processed at one end of the adjusting arm 11 away from the first vertical hole, and a digital display altimeter 6 for measuring flatness is inserted in the second vertical hole. A placing platform 2 is provided on the upper side of the base 1, wherein the placing platform 2 and the base 1 are plugged into each other, and the placing platform 2 is arranged on the lower side of the digital display altimeter 6. The workpiece to be measured is placed on the placing platform 2, and then the relative position of the digital display altimeter 6 and the workpiece is adjusted to achieve the purpose of adjusting the flatness of the workpiece surface. The working principle of the digital display altimeter 6 for measuring flatness has been fully disclosed in the prior art, so it will not be repeated here.

[0022] See also Figure 1 and Figure 2 The end of the adjusting arm 11 close to the second vertical hole is equipped with a first clamping ear 4 and a second clamping ear 5 that match each other. The first clamping ear 4, the second clamping ear 5 and the adjusting arm 11 are an integrally formed structure. There is a first gap between the first clamping ear 4 and the second clamping ear 5 that communicates with the second vertical hole. The end of the adjusting arm 11 close to the first vertical hole is equipped with a third clamping ear 8 and a fourth clamping ear 9 that match each other. The third clamping ear 8, the fourth clamping ear 9 and the adjusting arm 11 are an integrally formed structure. There is a second gap between the third clamping ear 8 and the fourth clamping ear 9 that communicates with the first vertical hole. The first clamping ear 4 is away from the second clamping ear 5. A small knob head 3 is provided on one side, and a large knob head 10 is provided on the side of the fourth clamping ear 9 facing away from the third clamping ear 8. A boss 12 is installed on one side of the small knob head 3 and one side of the large knob head 10. A pressure column 17 is connected and fixed to one end of the boss 12. The diameter of the pressure column 17 is smaller than the diameter of the boss 12. The boss 12 is installed between the large knob head 10 and the pressure column 17 and between the small knob head 3 and the pressure column 17, so that the distance between the large knob head 10 and the fourth clamping ear 9 and the distance between the small knob head 3 and the first clamping ear 4 are increased, providing sufficient space for people to grasp the large knob head 10 and the small knob head 3.

[0023] See also Figure 1 and Figure 2The end of the pressure column 17 away from the protruding column 12 is connected and fixed with a threaded head 14. The first clamping ear 4 and the fourth clamping ear 9 are both provided with through holes. The two threaded heads 14 respectively penetrate the two through holes. The two threaded heads 14 are respectively threadedly connected with the second clamping ear 5 and the third clamping ear 8. The outer surface of the pressure column 17 is provided with an annular groove. A ring 16 is slidably installed in the annular groove. A pressure ring 15 that is in sliding contact with the pressure column 17 is sleeved on the threaded head 14. The pressure ring 15 is connected and fixed with the ring 16 through the connecting rod 13, thereby reducing the width of the first gap and the second gap. When the widths of the first gap and the second gap are further reduced, the two pressing rings 15 no longer rotate due to the friction resistance. At this time, the ring 16 rotates in the annular groove relative to the pressing column 17, thereby preventing sliding friction between the pressing column 17 and the first clamping ear 4 and the second clamping ear 5, so that the damage to the first clamping ear 4 and the second clamping ear 5 caused by the sliding friction is minimized. Therefore, it is not necessary to use a material with good wear resistance to make the adjusting arm 11, thereby reducing the production cost of the adjusting arm 11.

[0024] See also Figure 3 , the second clamping ear 5 and the third clamping ear 8 are both provided with circular holes aligned with the perforations, and the two circular holes are provided with a limiting frame 19 with a rectangular cross section on the side away from the perforations. The two limiting frames 19 are respectively connected and fixed to the second clamping ear 5 and the third clamping ear 8, and a positioning block 20 with a rectangular cross section is inserted in the limiting frame 19. The positioning block 20 is provided with a threaded hole 18 that matches the threaded head 14 on one side. The threaded head 14 is threadedly connected in the threaded hole 18, so that the positioning block 20 is inserted in the limiting frame 19, and the position of the positioning block 20 is restricted, so that the threaded head 14 is threadedly connected in the threaded hole 18, thereby adjusting the relative position between the adjusting arm 11 and the column 7 and disassembling the digital display height gauge 6 by adjusting the length of the threaded head 14 in the threaded hole 18. Because the threaded hole 18 is processed on the positioning block 20, it is not necessary to improve the installation stability of the threaded head 14 by increasing the thickness of the second clamping ear 5 and the third clamping ear 8, which is conducive to further reducing the production cost of the adjusting arm 11.

[0025] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flatness measuring device, comprising a base (1), characterized in that: A column (7) is installed at an edge of one side of the upper surface of the base (1); an adjusting arm (11) is provided on the upper side of the base (1); a first vertical hole is processed at one end of the adjusting arm (11); the column (7) passes through the first vertical hole; a second vertical hole is processed at one end of the adjusting arm (11) away from the first vertical hole; a digital display height gauge (6) for measuring flatness is inserted in the second vertical hole; a first clamping ear (4) and a second clamping ear (5) that cooperate with each other are installed at one end of the adjusting arm (11) close to the second vertical hole; a second clamping ear (4) and a second clamping ear (5) that communicate with the second vertical hole are provided between the first clamping ear (4) and the second clamping ear (5). A third clamping ear (8) and a fourth clamping ear (9) are mounted on one end of the adjusting arm (11) close to the first vertical hole, and a second clamping ear (8) and a fourth clamping ear (9) are mounted thereon, and a second clamping ear (8) and a fourth clamping ear (9) are mounted thereon, and the second clamping ear (8) and the fourth clamping ear (9) are mounted thereon, and a small knob head (3) is mounted on a side of the first clamping ear (4) facing away from the second clamping ear (5), and a large knob head (10) is mounted on a side of the fourth clamping ear (9) facing away from the third clamping ear (8), and a connecting piece for reducing the width of the first gap is mounted on one side of the small knob head (3), and a connecting piece for reducing the width of the second gap is mounted on one side of the large knob head (10).

2. A flatness measuring device according to claim 1, characterized in that: The connecting member comprises a boss (12), one side of the small knob head (3) and one side of the large knob head (10) are both provided with bosses (12), one end of the boss (12) is connected and fixed with a pressure column (17), the diameter of the pressure column (17) is smaller than the diameter of the boss (12), one end of the pressure column (17) away from the boss (12) is connected and fixed with a threaded head (14), one side of the first clamping ear (4) and one side of the fourth clamping ear (9) are both provided with through holes, two of the threaded heads (14) respectively penetrate through the two through holes, and the two threaded heads (14) are respectively threadedly connected to the second clamping ear (5) and the third clamping ear (8), an annular groove is provided on the outer surface of the pressure column (17), a ring (16) is slidably installed in the annular groove, a pressure ring (15) is sleeved on the threaded head (14) and is in sliding contact with the pressure column (17), and the pressure ring (15) is connected and fixed to the ring (16) through a connecting rod (13).

3. A flatness measuring device according to claim 2, characterized in that: A circular hole aligned with the through hole is formed on one side of the second clamping ear (5) and one side of the third clamping ear (8). A limiting frame (19) is formed on one side of the two circular holes away from the through hole. The two limiting frames (19) are respectively connected and fixed to the second clamping ear (5) and the third clamping ear (8). A positioning block (20) is inserted in the limiting frame (19). A threaded hole (18) matching with the threaded head (14) is formed on one side of the positioning block (20). The threaded head (14) is threadedly connected in the threaded hole (18).

4. A flatness measuring device according to claim 3, characterized in that: The cross section of the limiting frame (19) is rectangular, and the cross section of the positioning block (20) is rectangular.

5. The flatness measuring device according to claim 1, characterized in that: The first clamping ear (4), the second clamping ear (5) and the adjusting arm (11) are an integrally formed structure, and the third clamping ear (8), the fourth clamping ear (9) and the adjusting arm (11) are an integrally formed structure.

6. A flatness measuring device according to claim 1, characterized in that: A placement platform (2) is provided on the upper side of the base (1), the placement platform (2) and the base (1) are plugged into each other, and the placement platform (2) is arranged on the lower side of the digital display altimeter (6).

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