TWI571611B - Flatness measuring device - Google Patents

Description

Flatness detecting device

The present invention relates to a flatness detecting device.

In recent years, with the rise of large-scale data applications and the rapid growth of cloud computing, the demand for servers with long-term, large-capacity, and high computing power has become increasingly prominent, which has led to an increase in the integration of servers, resulting in the increasing weight of the servers. The heavier, and the more serious the server falls, the more difficult it is to operate and maintain the servers (also known as nodes) deployed inside the cabinet. In the prior art, the degree of sagging of the server, that is, the flatness, is usually strictly controlled to optimize the servo structure, thereby reducing the operation and maintenance difficulty of the server in the cabinet.

Currently, the flatness of the server is detected by measuring the height of several points on the bottom surface relative to the reference plane. In the specific detection, the server level to be tested is first suspended on the carrying platform, and then the fulcrum between the server to be tested and the carrying platform is adjusted to zero to form the reference surface, and then measured by the measuring device. The height of several points on the bottom surface of the server to be tested relative to the reference surface, thereby evaluating the degree of falling of the server to be tested with a number of measured heights. Among them, in the flatness detection, it is particularly important to ensure the accuracy of the zero point. Therefore, in the measurement, it is necessary to accurately adjust the fulcrum between the server to be tested and the carrier to zero.

However, the inventors have found that the adjustment of the previous zero point is usually done by means of human visual inspection, resulting in zero adjustment accuracy and low adjustment efficiency.

It is an object of the present invention to provide a flatness detecting device that solves one or more problems in the prior art in zero point adjustment accuracy and low adjustment efficiency.

In order to solve the above technical problem, the present invention provides a flatness detecting device, comprising: a carrying mechanism for carrying a device to be tested, thereby defining a bearing surface; and a lifting and lowering supporting mechanism for supporting the supporting mechanism and driving The carrying mechanism moves up and down until the bearing surface is adjusted to a reference surface; and a measuring mechanism is used for measuring a height difference between a bottom surface of the device to be tested and the reference surface, thereby detecting the flatness of the device to be tested.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the supporting mechanism is a multi-prism column, and each supporting mechanism carries the device to be tested through one of the edges.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the supporting mechanism is a triangular prism.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the area where the carrying mechanism carries the device to be tested has a gap for accommodating the measuring mechanism.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the two ends of the supporting mechanism have a positioning hole, and the lifting and lowering supporting mechanism comprises: a first rod assembly comprising: a first rod member having a first rod a second rod end corresponding to the first rod end; a first screwing member disposed at the first rod end and capable of being screwed along the first rod to adjust the height; a positioning post disposed at the first end a rod end; and a fixing post rigidly fixed to the first rod and disposed at a moving distance of the second rod end; and a second rod member comprising: a second rod member having a third rod end and a fourth rod end corresponding to the third rod end, the third rod end has a blind hole, the depth of the blind hole is a blind depth; and a second screwing member is disposed at the third rod end, and can be along the The two rods are screwed to adjust the height, and the second rod end of the first rod member can be inserted into the blind hole of the second rod member; Wherein, the moving distance is greater than the blind depth, and the lifting support mechanism is inserted into the positioning hole through the positioning post to support the supporting mechanism.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the first screwing member adjusts the matching depth between the supporting mechanism and the liftable supporting mechanism.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the second screwing member adjusts the height difference between the bottom surface of the device to be tested and the reference surface.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the measuring mechanism comprises: a measuring part for measuring a height difference between a bottom surface of the device to be tested and a reference surface; and a supporting portion for supporting the measuring part.

One of the subsidiary technical means derived from the above-mentioned necessary technical means is that the measuring part is a digital dial gauge.

In summary, the flatness detecting device of the present invention can quickly adjust the bearing surface of the supporting mechanism to a reference surface by providing a lifting and lowering support mechanism, and manually adjust the bearing surface to the reference surface as compared with the previous manual visual inspection. The adjustment accuracy and adjustment efficiency of the reference plane.

In addition, the liftable support mechanism of the present invention realizes lifting and lowering through the threaded engagement of the rod member and the screwing member, and the operation is safe and reliable, the use cost is low, and the pitch of the thread can be accurately controlled, thereby adjusting the thread through the thread. The amount of movement of the lifting support mechanism is high.

The specific embodiments of the present invention will be further described by the following examples and drawings.

10‧‧‧Loading mechanism

101‧‧‧ gap

20‧‧‧ Lifting support mechanism

210‧‧‧First member assembly

211‧‧‧First member

212‧‧‧First screwing

213‧‧‧Positioning column

214‧‧‧ fixed column

220‧‧‧Second rod components

221‧‧‧Second bars

222‧‧‧Second screwing

30‧‧‧Measurement agency

311‧‧‧Support

311a‧‧‧Base

311b‧‧‧ bracket

312‧‧Measurement Department

40‧‧‧Device under test

The first drawing shows a schematic view of a flatness detecting device according to a preferred embodiment of the present invention; the second figure shows a schematic view of a carrying mechanism in a preferred embodiment of the present invention; The third drawing shows a schematic view of the liftable support mechanism in the preferred embodiment of the present invention; and the fourth figure is a longitudinal cross-sectional view of the liftable support mechanism shown in the third figure.

In order to make the objects, advantages and features of the present invention more clear, the flatness detecting device proposed by the present invention will be further described in detail below with reference to the first to fourth figures. It should be noted that the drawings are all in a very simplified form and both use non-precise proportions, and are only for convenience and clarity to assist the purpose of the embodiments of the present invention.

The first figure is a schematic view of a flatness detecting device according to a preferred embodiment of the present invention. As shown in the first figure, the flatness detecting device comprises a carrying mechanism 10, a lifting and lowering support mechanism 20 and a measuring mechanism 30, wherein the carrying mechanism 10 is used for carrying a device to be tested 40, thereby defining a bearing surface and a lifting support mechanism 20 is used for supporting the supporting mechanism 10, and driving the supporting mechanism 10 for lifting movement until the bearing surface is adjusted to a reference surface, and the measuring mechanism 30 is configured to measure the height difference between the bottom surface of the device under test 40 and the reference surface to detect the device to be tested. 40 flatness.

The flatness detecting device of the embodiment can provide the lifting and lowering support mechanism 20 so that the bearing surface can be quickly adjusted to the reference surface, and the adjustment precision and the adjustment efficiency of the reference surface are improved compared with the manual visual adjustment and the manual adjustment.

In this embodiment, the device under test 40 is, for example, a server, which detects the servo fall degree (ie, flatness) by the flatness detecting device, thereby optimizing the server structure and enhancing the structural strength of the server. In turn, ensure the normal operation of the server. At the same time, it is also possible to reduce the operation and maintenance difficulty of the servers arranged in the cabinet. Here, the above-described flatness detecting device will be further described in detail by taking a server as an example. However, the device under test 40 includes, but is not limited to, a server. Other devices that require flatness detection are also applicable, and the present invention is not limited thereto.

With continued reference to the first figure, the number of the carrier mechanisms 10 is two, and the two carrier mechanisms 10 are horizontally aligned to carry the device under test 40. The second figure shows a schematic view of a carrier mechanism in a preferred embodiment of the invention. As shown in the second figure, the carrier mechanism 10 is a multi-prism column, and each of the carrier mechanisms 10 carries the device under test 40 through one of the edges. The carrying mechanism 10 of the present embodiment carries the device under test 40 in a line contact manner, which can avoid mechanism interference, thereby ensuring that the measuring mechanism 30 can be smoothly measured. Preferably, the supporting mechanism 10 is a triangular prism, so that the structure is the simplest and the processing cost is low in the case of satisfying the bearing strength.

Please continue to refer to the second figure. Preferably, the area of the carrying mechanism 10 carrying the device under test 40 has a notch 101 for receiving the measuring mechanism 30. Here, the notch 101 is used to avoid the position, so that the measuring mechanism 30 can measure the data on the bottom surface of the device under test 40 to ensure the accuracy of the flatness detection. Moreover, the avoidance space is formed by means of cutting material to make the position, the structure is simple, and the processing is convenient. Specifically, if the carrier mechanism 10 is a triangular prism, the notch 101 is formed by an edge cut through the triangular prism for carrying the device under test 10.

Please refer to the first to fourth figures. The third figure shows a schematic diagram of the liftable support mechanism in the preferred embodiment of the present invention; the fourth figure is a longitudinal section of the liftable support mechanism shown in the third figure. schematic diagram. As shown in the third to fourth figures, and in conjunction with the first to second figures, the carrier mechanism 10 has opposite ends, each end having a positioning hole (not shown in the first figure and the second figure) The number of liftable support mechanisms 20 is four, and the liftable support mechanism 20 includes a first lever member 210 and a second lever member 220.

The first rod assembly 210 includes a first rod 211, a first screw member 212, a positioning post 213, and a fixing post 214. The first rod 211 has a first rod end (ie, an upper end) and a second rod end (ie, a lower end) corresponding to the first rod end. The first screwing member 212 is disposed at the first rod end of the first rod member 211 and can be screwed along the first rod member 211 (ie, the first screwing member 212 is screwed with the first rod member 211) to adjust the height. The positioning post 213 is disposed at the first rod end of the first rod 211. The fixing column 214 is rigid and solid The first rod member 211 is disposed at a second rod end of the first rod member 211 for a moving distance (ie, a distance from the second rod end of the first rod member 211).

Wherein, the second rod member 220 includes a second rod member 221 and a second screw member 222. The second rod 221 has a third rod end (ie, an upper end) and a fourth rod end (ie, a lower end) corresponding to the third rod end. The third rod end of the second rod member 221 has a blind hole, and the depth of the blind hole is a blind depth. The second screwing member 222 is disposed at the third rod end of the second rod member 221 and can be screwed along the second rod member 221 (ie, the second screwing member 222 is screwed with the second rod member 221) to adjust the height. And the second screwing member 222 can insert the second rod end of the first rod member 221 into the blind hole of the second rod member 221 . It is worth mentioning that the moving distance is greater than the blind depth. The liftable support mechanism 20 can be inserted into the positioning hole support carrier 10 through the positioning post 213.

Wherein, the first screwing member 212 can adjust the mating depth between the carrying mechanism 10 and the liftable support mechanism 20. The second screwing member 222 can adjust the height difference between the bottom surface of the device under test 40 and the reference surface.

Specifically, the positioning post 213 is inserted into the positioning hole to position the level mounting position of the device under test 40, and the first screwing member 212 provides a bearing surface to support the carrying mechanism 10. On the one hand, the liftable support mechanism 20 adjusts the depth of engagement between the carrier mechanism 10 and the liftable support mechanism 20 by screwing the first screw member 212 (that is, the depth at which the positioning post 213 is inserted into the positioning hole). On the other hand, the liftable support mechanism 20 adjusts the height of the reference surface by adjusting the height of the first rod set 210 by screwing the second screw 222.

Here, the second screwing member 222 can be raised or lowered by a certain size every rotation, that is, the rotation of the second screwing member 222 can drive the bearing mechanism 10 to generate a certain amount of movement, thereby achieving the height of the adjustment bearing mechanism 10. the goal of. Wherein the dimensions are of the order of millimeters.

The liftable support mechanism 20 of the embodiment realizes lifting and lowering through the threaded engagement of the rod member and the screwing member, and is not only safe and reliable in operation, low in use cost, and convenient in adjustment.

Preferably, the thread pitch of the first rod member 211 and the first screw member 212, and the thread pitch of the second rod member 221 and the second screw member 222 are both determined according to the amount of movement of the carrier mechanism 10 and the positioning accuracy, if The thread pitch is too dense, and the rotation of the screwing member may be long and inconvenient. If the thread pitch is too large, which is far greater than the movement accuracy of the carrier mechanism 10, the exact position of the carrier mechanism 10 is determined by rotating the screwing member. It is also very difficult, and when the thread pitch is the same as the movement amount of the carrier mechanism 10, the movement amount and accurate positioning of the adjustment bearing mechanism 10 are most convenient and reliable.

Preferably, the first screwing member 212 and the second screwing member 222 are subjected to surface carburization and surface heat treatment to enhance the strength of the thread to ensure safe and reliable use. Similarly, the threads of the first rod member 211 and the second rod member 221 that cooperate with each other are subjected to surface carburization and surface heat treatment, and the reliability is better.

The positioning post 213 is integrally formed with the first rod 211. Alternatively, the positioning post 213 is fixedly coupled to the first rod 211 through a threaded structure to facilitate removal and replacement.

In view of the above, the liftable support mechanism 20 capable of realizing the lifting function is not limited to the above-described structure disclosed in the preferred embodiment of the present invention, and other known structures can be used to realize the function of lifting and lowering, for example, pneumatic, hydraulic, electric, etc. It will be apparent to those skilled in the art that the described functionality can be accomplished by other alternatives not mentioned in the embodiments, which are not a mechanism that can be accomplished in a particular manner.

With continued reference to the first figure, the measuring mechanism 30 includes a support portion 311 for supporting the measuring portion 312 and a measuring portion 312 for measuring the height difference between the bottom surface of the device under test 40 and the reference surface.

The measuring part 312 is a digital display dial gauge (also referred to as a digital display dial gauge or an electronic score table). Since the digital dial gauge can quickly measure and read the measured values, the data measurement is convenient and simple.

In order to improve the efficiency of data measurement, the support portion 311 preferably includes a bottom 311a, a driving mechanism and a bracket 311b, wherein the driving mechanism can drive the base 311a to move (mainly translation), and the bracket 311b is disposed on the base 311a for supporting the measuring portion. 312.

The measuring mechanism 30 of the present embodiment transmits the support portion 311 that can be moved, so that the measuring portion 312 can be quickly moved to the area to be tested, thereby eliminating the need to manually move the measuring portion 312, and the measurement efficiency can be effectively improved.

In summary, the flatness detecting device of the present invention can quickly adjust the bearing surface of the carrying mechanism 10 for carrying the device under test 40 to a reference plane by providing the liftable support mechanism 20, compared to the previous manual. Visually adjust the bearing surface to the reference surface manually, which improves the adjustment accuracy and adjustment efficiency of the reference surface.

In addition, the liftable support mechanism 20 of the present invention realizes lifting and lowering through the threaded engagement of the rod member and the screwing member, has a simple structure, is safe and reliable in operation, has low use cost, and can be accurately controlled due to the pitch of the thread, and thus, through the thread The amount of movement of the liftable support mechanism 20 is adjusted, and the adjustment accuracy is high.

The above description is only for the description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art based on the above disclosure are within the scope of the claims.

10‧‧‧Loading mechanism

20‧‧‧ Lifting support mechanism

30‧‧‧Measurement agency

311‧‧‧Support

311a‧‧‧Base

311b‧‧‧ bracket

312‧‧Measurement Department

40‧‧‧Device under test

Claims (9)

A flatness detecting device comprises: at least two carrying mechanisms for carrying a device to be tested and defining a bearing surface; at least four lifting and lowering supporting mechanisms for supporting the supporting mechanism and driving the supporting mechanism a lifting movement until the bearing surface is adjusted to a reference surface; and a measuring mechanism for measuring a height difference between a bottom surface of the device under test and the reference surface, thereby detecting the flatness of the device to be tested. The flatness detecting device of claim 1, wherein the carrying mechanism is a polygonal prism, and each of the supporting mechanisms carries the device to be tested through one of a plurality of edges of the polygonal prism. The flatness detecting device according to claim 1, wherein the supporting mechanism is a triangular prism. The flatness detecting device of claim 2, wherein the area of the load carrying mechanism that carries the device to be tested has a notch that accommodates the measuring mechanism. The flatness detecting device of claim 1, wherein the two ends of the supporting mechanism have a positioning hole, and the lifting and lowering support mechanism comprises: a first rod assembly, comprising: a first rod Having a first rod end and a second rod end corresponding to the first rod end; a first screwing member disposed at the first rod end and capable of being screwed along the first rod member for adjusting the height a positioning post disposed at the first rod end; a fixing post rigidly fixed to the first rod and disposed at a distance of one of the second rod ends; and a second rod member comprising: a second rod having a third rod end and And a fourth rod end corresponding to the third rod end, the third rod end has a blind hole, the blind hole has a depth of a blind depth; and a second screwing member is disposed at the third rod end, And being screwed along the second rod to adjust the height, and the second rod end of the first rod can be inserted into the blind hole of the second rod; wherein the moving distance is greater than the blind depth The lifting support mechanism is inserted into the positioning hole through the positioning post to support the bearing mechanism. The flatness detecting device of claim 5, wherein the first screwing member is used to adjust a fitting depth between the bearing mechanism and the elevating support mechanism. The flatness detecting device of claim 5, wherein the second screwing member is configured to adjust the height difference between the bottom surface of the device to be tested and the reference surface. The flatness detecting device of claim 1, wherein the measuring mechanism comprises: a measuring unit for measuring the height difference between the bottom surface of the device to be tested and the reference surface; and a supporting portion Used to support the measuring section. The flatness detecting device according to claim 8, wherein the measuring unit is a digital dial gauge.