Automatic power-on and power-off device for handheld measuring head

Abstract

The utility model relates to an automatic power-on and power-off device for a hand-held measuring head, and the device comprises a telescoping mechanism which comprises an electric cylinder and a telescoping rod, the telescoping rod is fixedly connected with a telescoping part of the electric cylinder, and the free end part of the telescoping rod is aligned with a power-on and power-off button of the hand-held measuring head; the power supply module is used for supplying power to the electric cylinder; a first relay; the positive electrode power supply end of the electric cylinder is connected with the positive electrode output end of the power source through the second normally-closed switch and the first normally-open switch which are connected in series and connected with the negative electrode output end of the power source through the second normally-open switch, and the negative electrode power supply end of the electric cylinder is connected with the positive electrode output end through the first normally-closed switch and the second normally-open switch which are connected in series. The first normally-open switch is connected with the cathode output end; and the control unit is respectively connected with the first coil and the second coil. According to the utility model, automatic on-off control of the hand-held measuring head can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of probe measurement, in particular to an automatic power on / off device for a handheld probe. Background Art

[0002] Handheld probes (such as six-dimensional handheld probes) have the advantages of portability and wireless measurement. Therefore, they are often used for handheld measurement of hidden points and deep recesses. The probe can be easily adjusted to the optimal angle, and there is basically no angle restriction. With the advancement of science and technology and the development of industry technology, the automation and intelligence levels of measurement equipment are constantly improving. Manual measurement in some occasions is constantly being replaced by automatic measurement. Based on the ability of six-dimensional handheld probes to measure the 6D position and posture in space, they are currently also used in automation systems to measure the 6D position and posture of parts in space.

[0003] In the existing technology, if a six-dimensional handheld probe is used to measure the six-dimensional position and posture of a component in space, in addition to installing the six-dimensional handheld probe on the equipment (such as: robot flange, six-degree-of-freedom platform, truss, etc.), it is also necessary to manually enter the automated measurement station before the automated system is started, manually press the six-dimensional handheld probe's power button, and then come out after the power is turned on to start the automated measurement system. This automatic measurement system has the following problems:

[0004] (1) Inconvenient operation: In the automatic measurement system, it is necessary to manually enter the automated measurement station and press the power button of the six-dimensional handheld probe to turn it on and off, which increases the complexity of the operation process. In addition, sometimes the six-dimensional handheld probe needs to be installed at a high place, which makes manual power on and off difficult and inconvenient to operate.

[0005] (2) There are operational safety risks: Since the six-dimensional handheld probe generally needs to be installed on automated equipment such as robot flanges, six-degree-of-freedom platforms, and trusses, operators enter the automated measurement station to turn on and off the machine. If the robot, truss, or six-degree-of-freedom platform is abnormal or misoperated, it may have a certain impact on personnel safety if protective measures are not in place. In addition, in order to ensure that the line of sight with the laser tracker is not blocked, the six-dimensional handheld probe sometimes needs to be installed at a high place, and the operator needs to climb up to turn it on and off, which increases the risk.

[0006] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide an automatic power on and off device for a handheld probe, which can realize the automatic power on and off of the handheld probe without the need for manual entry into the automated measurement station to manually power it on and off, thus avoiding safety risks caused by manual participation, and the automatic power on and off also improves the working efficiency of the probe.

[0008] In order to solve the above technical problems, the utility model proposes the following technical solutions:

[0009] The present application relates to an automatic power on / off device for a handheld probe, which is used to automatically power on and off the handheld probe, and includes:

[0010] A telescopic mechanism, the telescopic mechanism comprising an electric cylinder and a telescopic rod, the telescopic rod being fixedly connected to the telescopic portion of the electric cylinder, and the free end of the telescopic rod being aligned with the power button of the handheld probe;

[0011] A power module, used to provide power to the electric cylinder;

[0012] a first relay having a first coil, a first normally open switch, and a first normally closed switch;

[0013] A second relay, comprising a second coil, a second normally open switch and a second normally closed switch, wherein the positive power supply end of the electric cylinder is connected to the positive output end of the power supply through the second normally closed switch and the first normally open switch connected in series, and is connected to the negative output end of the power supply through the second normally open switch, and the negative power supply end of the electric cylinder is connected to the positive output end through the first normally closed switch and the second normally open switch connected in series, and is connected to the negative output end through the first normally open switch;

[0014] The control unit is used to control the first coil to be energized and the second coil to be de-energized, so that the free end of the telescopic rod is extended to press the power button, and the handheld probe is turned on and off, and the second coil is controlled to be energized and the first coil to be de-energized, so that the free end of the telescopic rod is retracted and disengaged from the power button.

[0015] In some embodiments of the present application, the telescopic mechanism is installed on a mounting portion.

[0016] In some embodiments of the present application, the mounting portion includes:

[0017] A first mounting base, which is mounted on a bracket for mounting the handheld measuring head;

[0018] The second mounting seat is mounted on the first mounting seat, and the electric cylinder is mounted on the second mounting seat.

[0019] In some embodiments of the present application, the second mounting seat includes a first mounting plate and a second mounting plate butted against each other;

[0020] At least one first mounting hole is formed on the first mounting plate, and at least one second mounting hole corresponding to each first mounting hole is formed on the corresponding first mounting seat, and bolts are passed through each first mounting hole and the corresponding second mounting hole for fixing;

[0021] At least one third mounting hole is formed on the second mounting plate, each third mounting hole corresponds to at least one fourth mounting hole formed on the mounting bracket of the electric cylinder, and bolts are passed through each third mounting hole and the corresponding fourth mounting hole for fixing.

[0022] In some embodiments of the present application, the first mounting hole is a first elongated mounting hole, and the third mounting hole is also a third elongated mounting hole.

[0023] In some embodiments of the present application, a rubber sleeve is provided at the free end of the telescopic rod.

[0024] In some embodiments of the present application, an elastic buffer is embedded in the inner side of the telescopic rod, which is used for buffering when the power button is pressed at the free end of the telescopic rod.

[0025] In some embodiments of the present application, the power module provides +24V DC power to the electric cylinder.

[0026] The automatic power on / off device for a handheld probe provided in the present application has the following advantages and beneficial effects compared with the prior art:

[0027] When it is necessary to press the power button to turn the machine on and off, the control unit controls the first relay and the second relay to supply positive power to the electric cylinder, so that the telescopic part of the electric cylinder drives the telescopic rod to extend to press the power button to complete the power on and off. After the power on and off action is completed, the first relay and the second relay are controlled to supply negative power to the electric cylinder to achieve the retraction and return of the electric cylinder. Automatic power on and off avoids manual entry into the measuring station to manually start the machine, and the operation is simple and avoids the safety risks brought by manual participation.

[0028] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments of the utility model or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1This is an installation structure diagram of an automatic power on / off device for a handheld probe proposed by the utility model;

[0031] Figure 2 The utility model provides a structure of a telescopic mechanism in an automatic switch device for a handheld probe. Figure 1 ;

[0032] Figure 3 The utility model provides a structure of a telescopic mechanism in an automatic switch device for a handheld probe. Figure 2 ;

[0033] Figure 4 This is a power supply principle diagram of an electric cylinder in an automatic power on / off device for a handheld probe proposed by the utility model;

[0034] Figure 5 This is a connection principle diagram of a control unit, a first coil and a second coil in an automatic power on / off device for a handheld probe proposed by the utility model;

[0035] Reference numerals:

[0036] 100, telescopic mechanism; 110, electric cylinder; 111, mounting bracket; 120, telescopic rod; 130, rubber sleeve; 200, control unit; 300, mounting portion; 310, first mounting seat; 320, second mounting seat; 321, first mounting plate; 322, second mounting plate; 323, first mounting hole; 324, third mounting hole; 400, bracket; 510, first branch; 520, second branch; 530, third branch; 540, fourth branch. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0041] In order to realize automatic power on and off control of a handheld probe (not shown), the present application relates to an automatic power on and off device for a handheld probe, which does not require a worker to enter a measuring station to manually turn on and off the handheld probe, thereby avoiding operating inconvenience and improving personal safety.

[0042] The handheld probe may be a commonly used six-dimensional handheld probe, which has a power button, which turns on when pressed, and turns off when pressed again after being turned on.

[0043] Generally, when used, see Figure 1 The handheld probe is installed on the bracket 400 after adjusting its position.

[0044] The automatic opening and closing device includes a telescopic mechanism 100 , a power module (not shown), a first relay KA1 , a second relay KA2 , and a control unit 200 .

[0045] Among them, see Figures 1 to 3 The telescopic mechanism 100 includes an electric cylinder 110 and a telescopic rod 120. The electric cylinder 110 can drive its telescopic part to extend and retract when performing a telescopic action. The telescopic rod 120 has a certain length and is fixedly connected to the telescopic part. Thus, the telescopic rod 120 can extend and retract under the drive of the telescopic part. When the telescopic rod 120 is extended, its extended length just abuts against and presses the power button of the handheld probe. After the button is pressed, the telescopic rod 120 retracts and returns to its original position.

[0046] The power module is used to provide electric energy to the electric cylinder 110. In this application, see Figure 4 The power module provides a DC +24V power supply, and the power module can be a power conversion unit that converts AC power into DC power.

[0047] The first relay KA1 and the second relay KA2 are intermediate relays.

[0048] The first relay KA1 includes a first coil KA1, a first normally open switch KA1 and a first normally closed switch KA1.

[0049] When the first coil KA1 is energized, the first normally open switch KA1 is closed and the first normally closed switch KA1 is opened, and when the first coil KA1 is de-energized, the first normally open switch KA1 is opened and the first normally closed switch KA1 is closed.

[0050] The second relay KA2 includes a second coil KA2, a second normally open switch KA2 and a second normally closed switch KA2.

[0051] When the second coil KA2 is energized, the second normally open switch KA2 is closed and the second normally closed switch KA2 is opened, and when the second coil KA2 is de-energized, the second normally open switch KA2 is opened and the second normally closed switch KA2 is closed.

[0052] In order to simulate the extension and retraction of the electric cylinder 110 to realize the power on and off action, the power supply direction of the electric cylinder 110 needs to be set.

[0053] See also Figure 4 , lead out the power supply lead of the electric cylinder 110, including the positive power supply terminal A and the negative power supply terminal B, where positive and negative are relative.

[0054] When the electric cylinder 110 is powered in the positive direction, that is, the positive power supply terminal A receives the positive power supply +24V, and the negative power supply terminal B is grounded (that is, 0V), the telescopic part of the electric cylinder 110 drives the telescopic rod 120 to extend. At this time, the power on / off button can be pressed after the free end of the telescopic rod 120 is extended into place.

[0055] When the electric cylinder 110 is powered in the negative direction, that is, the positive power supply terminal A receives the positive pole of the power supply 0V, and the negative power supply terminal B is connected to +24V, the telescopic part of the electric cylinder 110 drives the telescopic rod 120 to retract. At this time, the free end of the telescopic rod 120 can be separated from the power button to achieve the reset of the telescopic rod 120.

[0056] In some embodiments of the present application, see Figure 4 The positive power supply terminal A is connected to 24V through the first branch 510 and to 0V through the second branch 520, wherein the first branch 510 is connected in series with a first normally open switch KA1 and a second normally closed switch KA2, and the second branch 520 is connected in series with a second normally open switch KA2.

[0057] The negative power supply terminal B is connected to 0V through the third branch 530 and to 24V through the fourth branch 540 , wherein the third branch 530 is connected in series with a first normally open switch KA1 , and the fourth branch 540 is connected in series with a first normally closed switch KA1 and a second normally open switch KA2 .

[0058] The first branch 510 and the second branch 520 are interlocked, and the third branch 530 and the fourth branch 540 are interlocked, so as to ensure that the extension or retraction of the electric cylinder 110 is safe and reliable.

[0059] When you need to press the power button, refer to Figure 5 , the control unit 200 controls the first coil KA1 to be energized and the second coil KA2 to be de-energized. At this time, the first branch 510 and the third branch 530 are turned on, and the second branch 520 and the fourth branch 540 are turned off, so that the electric cylinder 110 is positively powered. The telescopic part of the electric cylinder 110 drives the telescopic rod 120 to extend and press the power button to realize automatic power on and off.

[0060] When the electric cylinder 110 needs to be reset, the control unit 200 controls the second coil KA2 to be energized and the third coil KA1 to be de-energized. At this time, the second branch 520 and the fourth branch 540 are connected, and the first branch 510 and the third branch 530 are disconnected, so that the electric cylinder 110 is negatively powered, and the telescopic part of the electric cylinder 110 drives the telescopic rod 120 to retract and return to its original position.

[0061] Since the first branch 510 and the second branch 520 are interlocked, and the third branch 530 and the fourth branch are interlocked, when the first coil KA1 and the second coil KA2 are both energized, the first branch 510 is disconnected, the second branch 520 is turned on, the third branch 530 is turned on, and the fourth branch 540 is disconnected, the positive power supply terminal A of the electric cylinder 110 is connected to 0V, the negative power supply terminal B is connected to 0V, and the electric cylinder 110 is not energized.

[0062] When both the first coil KA1 and the second coil KA2 are de-energized, the first branch 510 , the second branch 520 , the third branch 530 and the fourth branch 540 are all disconnected, and the electric cylinder 110 is de-energized.

[0063] In this way, by controlling the first coil KA1 and the second coil KA2, the telescopic mechanism 100 can be used to automatically turn on and off the handheld probe, thereby avoiding manual operation.

[0064] In order to facilitate the arrangement of the telescopic mechanism 100, see Figure 1 The telescopic mechanism 100 is mounted on the mounting portion 300 , and it is sufficient to ensure that the power button can be pressed when the free end of the telescopic rod 120 is extended into place.

[0065] The mounting portion 300 includes a first mounting seat 310 and a second mounting seat 320 .

[0066] The first mounting seat 310 is mounted on a bracket 400 for mounting a handheld probe, the second mounting seat 320 is mounted on the first mounting seat 310 , and the mounting bracket 111 of the electric cylinder 110 is mounted on the second mounting seat 320 .

[0067] In some embodiments of the present application, see Figure 2 and Figure 3 The second mounting seat 320 includes a first mounting plate 321 and a second mounting plate 322 that are butted against each other. For example, the second mounting seat 320 can be configured as a T-shaped seat or an L-shaped seat.

[0068] In this application, see Figure 2 and Figure 3 The second mounting seat 320 is designed as an L-shaped seat, and at least one first mounting hole 323 is opened on the first mounting plate 321, and at least one second mounting hole (not marked) corresponding to each first mounting hole 323 is opened on the corresponding first mounting seat 310, and bolts are fixed through each first mounting hole 323 and the corresponding second mounting hole.

[0069] The second mounting plate 322 is used to install the telescopic mechanism 100. Specifically, at least one third mounting hole 324 is provided on the second mounting plate 322. The at least one third mounting hole 324 corresponds to at least one fourth mounting hole (not marked) on the mounting bracket 111 of the electric cylinder 110 in the telescopic mechanism 100. Bolts are passed through each third mounting hole 324 and the corresponding fourth mounting hole for fixing. In this way, the telescopic mechanism 100 is installed.

[0070] In order to facilitate the adjustment of the position of the telescopic mechanism 100, see Figure 3 At least one first mounting hole 323 is two parallel first long strip mounting holes, and at least one third mounting hole 324 is two parallel third long strip mounting holes.

[0071] The second mounting seat 320 and the telescopic mechanism 100 thereon can be adjusted in position along the long strip opening direction of the first long strip mounting hole, and the telescopic mechanism 100 can be adjusted in position along the long strip opening direction of the third long strip mounting hole, so as to achieve position adjustment of the telescopic mechanism 100, so that the free end of the telescopic rod 120 can be accurately aligned with the power button when extended into place, thereby achieving accurate power on and off action.

[0072] In some embodiments of the present application, see Figure 2 and Figure 3 A rubber sleeve 130 is provided at the free end of the telescopic rod 120, which is used to play a buffering role and protect the power button when the power button is pressed at the free end.

[0073] In addition, an elastic buffer (not shown) is embedded in the telescopic rod 120 to provide buffering when the power button is pressed at the free end of the telescopic rod 120, thereby avoiding a large impact on the power button and damaging the power button.

[0074] The automatic power on / off device provided in the present application does not require manual power on / off, thereby improving operational convenience and avoiding safety risks caused by manual participation.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic power on / off device for a handheld probe, used for automatically powering on and off the handheld probe, characterized in that: include: A telescopic mechanism, the telescopic mechanism comprising an electric cylinder and a telescopic rod, the telescopic rod being fixedly connected to the telescopic portion of the electric cylinder, and the free end of the telescopic rod being aligned with the power button of the handheld probe; A power module, used to provide power to the electric cylinder; a first relay having a first coil, a first normally open switch, and a first normally closed switch; A second relay, comprising a second coil, a second normally open switch and a second normally closed switch, wherein the positive power supply end of the electric cylinder is connected to the positive output end of the power supply through the second normally closed switch and the first normally open switch connected in series, and is connected to the negative output end of the power supply through the second normally open switch, and the negative power supply end of the electric cylinder is connected to the positive output end through the first normally closed switch and the second normally open switch connected in series, and is connected to the negative output end through the first normally open switch; The control unit is used to control the first coil to be energized and the second coil to be de-energized, so that the free end of the telescopic rod is extended to press the power button, and the handheld probe is turned on and off, and the second coil is controlled to be energized and the first coil to be de-energized, so that the free end of the telescopic rod is retracted and disengaged from the power button.

2. The automatic power on / off device for a handheld probe according to claim 1, characterized in that: The telescopic mechanism is installed on the installation part.

3. The automatic power on / off device for a handheld probe according to claim 2, characterized in that: The mounting portion comprises: A first mounting base, which is mounted on a bracket for mounting the handheld measuring head; The second mounting seat is mounted on the first mounting seat, and the electric cylinder is mounted on the second mounting seat.

4. The automatic power on / off device for a handheld probe according to claim 3, characterized in that: The second mounting seat includes a first mounting plate and a second mounting plate butted against each other; At least one first mounting hole is formed on the first mounting plate, and at least one second mounting hole corresponding to each first mounting hole is formed on the corresponding first mounting seat, and bolts are passed through each first mounting hole and the corresponding second mounting hole for fixing; At least one third mounting hole is formed on the second mounting plate, each third mounting hole corresponds to at least one fourth mounting hole formed on the mounting bracket of the electric cylinder, and bolts are passed through each third mounting hole and the corresponding fourth mounting hole for fixing.

5. The automatic power on / off device for a handheld probe according to claim 4, characterized in that: The first mounting hole is a first elongated mounting hole, and the third mounting hole is also a third elongated mounting hole.

6. The automatic power on / off device for a handheld probe according to claim 1, characterized in that: A rubber sleeve is arranged at the free end of the telescopic rod.

7. The automatic power on / off device for a handheld probe according to claim 1, characterized in that: An elastic buffer is embedded in the inner side of the telescopic rod, which is used for buffering when the power button is pressed at the free end of the telescopic rod.

8. The automatic power on / off device for a handheld probe according to claim 1, characterized in that: The power module provides +24V DC power to the electric cylinder.

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