A flexible automatic measuring device for a rod member

Abstract

The present invention provides a flexible automatic measuring device for a rod, which comprises a test tabletop, a starting baffle unit, an end stop unit, an arc high baffle unit and a test circuit; the starting baffle unit includes a starting baffle and a starting electrode block, the end stop unit includes a plurality of side electrode plates, an end point electrode block and a left-right translation driving module, the side electrode plates are arranged intermittently in sequence on one side of the test tabletop, and the end point electrode block is driven by the left-right translation driving module to move along the side; the arc high baffle unit includes an arc high baffle and a front-back translation driving module, and the arc high baffle is translated in a direction close to or away from the side electrode plates under the drive of the front-back translation driving module; the starting electrode block, the side electrode plates and the end point electrode block are all connected to the test circuit but are not directly electrically connected to each other, but the test circuit is electrically connected through the measured rod, so as to complete automatic testing.

Description

Technical Field

[0001] The present invention relates to a device for measuring the dimensions of a rod member.

Background Art

[0002] Straight rods and arc rods are components of many structural members. For example, the roof frame of a large bus is welded by several arc rod members and straight rod members. Before welding, it is necessary to prepare arc rod members and straight rod members with corresponding dimensions. Among them, the straight rod members are obtained by cutting rod raw materials, and the arc rod members are obtained by cutting rod raw materials and then bending.

[0003] Therefore, after the straight rod members are cut, it is necessary to detect the length accuracy of the straight rod members, and it is also necessary to detect the arc height and total length of the arc rod members after bending. At present, there are many and relatively simple devices for detecting straight rods in the market, and there are also many devices for detecting arc rods. However, there are not many detection devices that can detect both straight rod members and arc rod members, and most detections are manual operations and data are recorded manually, so the versatility is not good.

Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flexible automatic measuring device for rod members, which can be used for automatic detection of the dimensions of straight rods and arc rods and record data.

[0005] The present invention is realized as follows: A flexible automatic measuring device for rod members includes a test table, a starting baffle unit, an end stop unit, an arc high baffle unit, and a test circuit;

[0006] The starting baffle unit includes a starting baffle and a starting electrode block. The starting baffle is located at one end of the test table, and the starting electrode block is located inside one end of the starting baffle;

[0007] The end stop unit includes a plurality of side electrode plates, an end electrode block, and a left - right translation driving module. The plurality of side electrode plates are sequentially and intermittently arranged on one side of the test table, and the end electrode block is driven by the left - right translation driving module to move along the side;

[0008] The arc high baffle unit includes an arc high baffle and a front - rear translation driving module. The arc high baffle is arranged on the test table, and one end abuts against the starting baffle and can be translated in a direction close to or away from the side electrode plates under the drive of the front - rear translation driving module;

[0009] Wherein, the starting electrode block, the side electrode plates, and the end electrode block are all connected to the test circuit but are not directly electrically connected to each other, but the test circuit is electrically connected through the measured rod member.

[0010] Further, the left - right translation drive module includes a sliding seat, a guide rail, and a gear - rack drive assembly. The guide rail is disposed below the side, the sliding seat is mounted on the guide rail and can be driven to translate by the gear - rack drive assembly, and the end electrode block is fixed to the sliding seat.

[0011] Further, the left - right translation drive module further includes an electrode seat which has a perforation and an insulating surface. The perforation penetrates through the side electrode plate without contact, and the end electrode block is fixed on the insulating surface and is arranged opposite to the starting electrode block.

[0012] Further, the front - back translation drive module includes a plurality of elongated guide holes, a guide plate, two bases, and a sprocket - chain drive assembly. The plurality of elongated guide holes are arranged in the front - back direction on the test table surface. The two bases are arranged at the bottom of the test table surface and are connected to the guide plate through the elongated guide holes, and the two bases move back and forth under the drive of the sprocket - chain drive assembly.

[0013] The advantages of the present invention are as follows: Electrodes are provided corresponding to the key measurement points of the measured rod member, so as to conduct each electrode through the measured rod member, and the measured circuit records the measurement parameters, thereby realizing a completely automatic test. Since the electrodes on the end stop unit can be translated, not only accurate measurement data can be obtained, but also the measurement requirements of various specifications of rod members can be adapted.

Description of the Drawings

[0014] The following further describes the present invention with reference to the drawings in conjunction with embodiments.

[0015] Figure 1 is the front - view three - dimensional structure schematic diagram of the automatic rod member measuring device of the present invention.

[0016] Figure 2 is the rear - view three - dimensional structure schematic diagram of the automatic rod member measuring device of the present invention.

[0017] Figure 2a is the structure schematic diagram of the left - right translation drive module of the automatic rod member measuring device of the present invention.

[0018] Figure 3 is the schematic diagram of the measurement principle in the automatic rod member measuring device of the present invention.

[0019] Figure 4 is the state schematic diagram of the automatic rod member measuring device of the present invention when measuring a long straight rod.

[0020] Figure 5 is the state schematic diagram of the automatic rod member measuring device of the present invention when measuring a short straight rod.

[0021] Figure 6It is a schematic diagram of the state of the automatic measuring device for rods of the present invention when measuring arc-shaped rods.

Specific Embodiment

[0022] Please refer to Figures 1 to 6 As shown, the flexible automatic measuring device 100 for rods of the present invention includes a test table 1, a starting baffle unit 2, an end stop unit 3, an arc high baffle unit 4, and a test circuit 5;

[0023] The starting baffle unit 2 includes a starting baffle 21 and a starting electrode block 22. The starting baffle 21 is located at one end 11 of the test table 1, and the starting electrode block 22 is located inside one end of the starting baffle 21;

[0024] The end stop unit 3 includes a plurality of side electrode plates 31, an end electrode block 32, and a left-right translation driving module 33. The plurality of side electrode plates 31 are sequentially and discontinuously arranged on one side 12 of the test table 1. The end electrode block 32 is driven by the left-right translation driving module 33 to move along the side 12; Specifically, mainly as Figure 2 and Figure 2a As shown, the left-right translation driving module 33 includes a sliding seat 331, a guide rail 332, and a gear-rack driving assembly 333. The guide rail 332 is arranged below the side 12. The sliding seat 331 is mounted on the guide rail 332 and can be driven by the gear-rack driving assembly 333 to translate. The end electrode block is fixed on the sliding seat. The left-right translation driving module further includes an electrode seat, which has a through hole and an insulating surface. The through hole penetrates through the side electrode plate without contact, and the end electrode block is fixed on the insulating surface and is arranged opposite to the starting electrode block.

[0025] The arc high baffle unit 4 includes an arc high baffle 41 and a front-back translation driving module 42. The arc high baffle 41 is arranged on the test table 1, and one end abuts against the starting baffle 21 and can be translated in a direction close to or away from the side electrode plates 31 under the drive of the front-back translation driving module 42; Specifically: The front-back translation driving module 42 includes a plurality of long-shaped guide holes 421, a guide plate 422, two bases 423, and a sprocket-chain driving assembly 424. The plurality of long-shaped guide holes 421 are arranged on the test table 1 in the front-back direction. The two bases 423 are arranged at the bottom of the test table 1 and are connected to the guide plate 422 through the long-shaped guide holes 421, and the two bases 423 are driven by the sprocket-chain driving assembly 424 to move back and forth.

[0026] Among them, the starting electrode block 22, the side electrode plates 31, and the ending electrode block 32 are all connected to the test circuit 5 but are not directly electrically connected to each other. Instead, the test circuit 5 is electrically connected through the measured rod.

[0027] The measurement process and measurement principle of the present invention are as follows:

[0028] 1. As mainly shown in Figure 4 , when the measured rod is a long straight rod 200, the long straight rod 200 is placed on the workbench surface 1. The front-back translation drive module 42 drives the arc-shaped high plate 41 to push the long straight rod 200 against the side electrode plates 31, so that the long straight rod 200 conducts at least two side electrode plates 31. At this time, the test circuit 5 controls the front-back translation drive module 42 to stop moving. At this time, the left-right translation drive module 33 drives the ending electrode block 32 to move in the direction of the starting electrode block 22 until both ends of the long straight rod 200 respectively abut and conduct with the starting electrode block 22 and the ending electrode block 32. At this time, the test circuit 5 controls the left-right translation drive module 33 to stop moving.

[0029] 2. As mainly shown in Figure 5 , when the measured rod is a short straight rod 300, its measurement actions and processes are exactly the same as those for measuring the long straight rod 200, and will not be elaborated here.

[0030] 3. As mainly shown in Figure 6 , when the measured rod is an arc rod 400, its measurement actions and processes are basically the same as those for measuring the long straight rod 200. It's just that when the front-back translation drive module 42 drives the arc-shaped high plate 41 to push the arc rod 400 against the side electrode plates 31, only two side electrode plates 31 can be conducted by both ends of the arc rod 400, and the rest are the same.

[0031] Combined with Figure 3 shown, each time of measurement, the front-back translation drive module 42 and the left-right translation drive module 33 both have fixed translation starting points, namely the arc height measurement zero point O1 and the length measurement zero point O2.

[0032] Let the distance from the arc height measurement zero point O1 to the side electrode plates 31 be H1. During measurement, the distance that the front-back translation drive module 42 moves against the side electrode plates 31 until it stops moving is H2. Then the measured value H of the arc height is: H = H1 - H2;

[0033] Similarly, let the distance from the length measurement zero point O2 to the starting electrode block 22 be L1. During measurement, the distance that the left-right translation drive module 33 moves against the starting electrode block 22 until it stops moving is L2. Then the measured value L of the length is: L = L1 - L2;

[0034] Among them, for the long straight rod 200 and the short straight rod 300, there is no so-called arc height. Therefore, the value of H can be not recorded.

[0035] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should all be covered by the scope protected by the claims of the present invention.

Claims

1. A flexible automatic measuring device for a rod, characterized in that: It includes a test tabletop, a starting baffle unit, an end stop unit, an arc high baffle unit, and a test circuit; The starting baffle unit includes a starting baffle and a starting electrode block. The starting baffle is located at one end of the test tabletop, and the starting electrode block is located inside one end of the starting baffle; The end stop unit includes a plurality of side electrode plates, an end electrode block, and a left-right translation driving module. The plurality of side electrode plates are sequentially and intermittently arranged on one side of the test tabletop, and the end electrode block is driven by the left-right translation driving module to move along the side; The arc high baffle unit includes an arc high baffle and a front-back translation driving module. The arc high baffle is arranged on the test tabletop, and one end abuts against the starting baffle and can be translated in a direction close to or away from the side electrode plates under the drive of the front-back translation driving module; Among them, the starting electrode block, the side electrode plates, and the end electrode block are all connected to the test circuit but are not directly electrically connected to each other. Instead, the test circuit is electrically connected through the measured rod; The left-right translation driving module includes a sliding seat, a guide rail, and a gear-rack driving component. The guide rail is arranged below the side, the sliding seat is mounted on the guide rail and can be driven by the gear-rack driving component to translate, and the end electrode block is fixed on the sliding seat; The left-right translation driving module further includes an electrode seat. The electrode seat has a through hole and an insulating surface. The through hole penetrates through the side electrode plate without contact, and the end electrode block is fixed on the insulating surface and is arranged opposite to the starting electrode block.

2. The flexible automatic measuring device for a rod according to claim 1, characterized in that: The front-back translation driving module includes a plurality of long-shaped guide holes, a guide plate, two bases, and a sprocket-chain driving component. The plurality of long-shaped guide holes are arranged on the test tabletop in the front-back direction. The two bases are arranged at the bottom of the test tabletop and are connected to the guide plate through the long-shaped guide holes, and the two bases move back and forth under the drive of the sprocket-chain driving component.

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