High-precision double-end full-automatic clamping force measuring instrument

Abstract

The invention discloses a high-precision double-head full-automatic clamping force measuring instrument, which comprises a machine base, a clamping force measuring mechanism, a positioning mechanism, a Y-axis driving mechanism, an X-axis driving mechanism, a clamp and a controller, and is characterized in that the clamping force measuring mechanism can perform clamping force detection on a nuclear fuel grid arranged on the machine base in different directions; the positioning mechanism is used for carrying out coordinate positioning on a nuclear fuel grid arranged on the machine base, the Y-axis driving mechanism is used for driving the positioning mechanism and the clamping force measuring mechanism to move along the Y axis, the Y-axis driving mechanism is used for driving the positioning mechanism and the clamping force measuring mechanism to move along the X axis, and the clamp is used for fixing the nuclear fuel grid arranged on the machine base. According to the method, the clamping force of the nuclear fuel grid in different directions can be detected, so that the performance of the grid is evaluated more comprehensively, the multi-dimensional detection mode is beneficial to finding potential defects and problems, and a more powerful guarantee is provided for safe operation of a nuclear power station.

Description

Technical Field

[0001] The invention relates to the technical field of clamping force detection, in particular to a high-precision double-head full-automatic clamping force measuring instrument. Background Art

[0002] With the continuous growth of global energy demand and the strengthening of environmental protection awareness, the development and utilization of nuclear energy as a low-carbon and efficient energy form has received widespread attention. In the field of nuclear power generation, pressurized water reactor nuclear power plants are widely used due to their high safety and mature technology. With the establishment of different types of pressurized water reactor nuclear power plants in China, such as AFA3G and AP1000, the demand for special grids for nuclear fuel elements has also increased. As an important device to ensure the positioning and fixation of nuclear fuel element fuel rods, the quality and performance of the grid directly affect the safe operation and fuel utilization rate of the nuclear power plant.

[0003] Its main function is to locate and fix the fuel rods to prevent them from displacement or damage during the operation of the reactor. The clamping force of the grid, that is, the fixing force of the grid on the fuel rods, is one of the important indicators for evaluating the performance of the grid. Too much or too little clamping force may cause damage to the fuel rods, thus affecting the safe operation of the nuclear power plant and the fuel utilization rate.

[0004] Traditional grid clamping force detection methods are mostly manual or semi-automatic, which are not only inefficient, but also easily affected by human factors. In addition, due to the particularity of the nuclear power plant environment, the accuracy, stability and reliability of the measuring instruments are extremely high, and traditional methods often cannot meet these requirements.

[0005] Therefore, a high-precision double-head fully automatic clamping force measuring instrument is proposed. Summary of the invention

[0006] The object of the present invention is to provide a high-precision double-head fully automatic clamping force measuring instrument, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: a high-precision double-head fully automatic clamping force measuring instrument, comprising:

[0008] Machine base;

[0009] A clamping force measuring mechanism, which can detect the clamping force in different directions on the nuclear fuel grid placed on the base;

[0010] A positioning mechanism, the positioning mechanism is used to coordinately position the nuclear fuel grid placed on the base;

[0011] A Y-axis driving mechanism, the Y-axis driving mechanism is arranged on the machine base, and the Y-axis driving mechanism is used to drive the positioning mechanism and the clamping force measuring mechanism to move along the Y-axis;

[0012] An X-axis driving mechanism, wherein the X-axis driving mechanism is arranged on the Y-axis driving mechanism, and the Y-axis driving mechanism is used to drive the positioning mechanism and the clamping force measuring mechanism to move along the X-axis;

[0013] A clamp, the clamp is arranged on the machine base, and the clamp is used to fix the nuclear fuel grid placed on the machine base;

[0014] A controller is installed on the machine base, and the Y-axis driving mechanism, the X-axis driving mechanism, the positioning mechanism and the clamping force measuring mechanism are all controlled by the controller.

[0015] In a high-precision double-head fully automatic clamping force measuring instrument according to the present invention, optionally, the Y-axis driving mechanism includes a Y-axis linear module, the Y-axis linear module is installed on the machine base, a Y-axis mounting seat is fixedly installed on the slide table of the Y-axis linear module, a Y-axis slide rail is fixedly installed on the machine base, a Y-axis slider is fixedly connected to the bottom of the Y-axis mounting seat, the Y-axis slider is slidably installed on the Y-axis slide rail, the tops of both ends of the Y-axis mounting seat are fixedly connected to support seats, and a crossbeam is fixedly connected between the two support seats;

[0016] The X-axis driving mechanism includes an X-axis linear module, which is installed on one side of the crossbeam, a first mounting seat is fixedly installed on the slide table of the X-axis linear module, a second mounting seat is fixedly installed on the first mounting seat, an X-axis slide rail is fixedly installed on one side of the crossbeam, an X-axis slider is fixedly installed on one side of the first mounting seat, and the X-axis slider is slidably installed on the X-axis slide rail.

[0017] In a high-precision double-head fully automatic clamping force measuring instrument according to the present invention, optionally, the positioning mechanism includes a first lifting mechanism and a positioning assembly;

[0018] The first lifting mechanism is used to drive the positioning assembly to move along the Z-axis, and the first lifting mechanism includes a first Z-axis linear module, a first fixed seat is fixedly installed on the slide table of the first Z-axis linear module, a first Z-axis slide rail is fixedly installed on one side of the second mounting seat, a first Z-axis slider is fixedly installed on one side of the first fixed seat, and the first Z-axis slider is slidably installed on the first Z-axis slide rail;

[0019] The positioning assembly comprises a first assembly seat, the first assembly seat is fixedly mounted on the first fixing seat, and a CCD camera is fixedly mounted on one end of the first assembly seat away from the first fixing seat.

[0020] In a high-precision double-head fully automatic clamping force measuring instrument according to the present invention, optionally, a fill light for filling light for the CCD camera is fixedly mounted at the lower end of the CCD camera.

[0021] In a high-precision double-head fully automatic clamping force measuring instrument according to the present invention, optionally, the clamping force measuring mechanism is provided with two groups, and the two groups of the clamping force measuring mechanisms are respectively arranged on both sides of the positioning mechanism;

[0022] Both groups of the clamping force measuring mechanisms include a second lifting mechanism, a rotating mechanism and a measuring assembly;

[0023] The second lifting mechanism comprises a second Z-axis linear module, a second fixed seat is fixedly mounted on the slide table of the second Z-axis linear module, a second Z-axis slide rail is fixedly mounted on the second mounting seat, a second Z-axis slider is fixedly mounted on one side of the second fixed seat, and the second Z-axis slider is slidably mounted on the second Z-axis slide rail;

[0024] The rotating mechanism comprises a second assembly seat, the second assembly seat is fixedly mounted on the second fixed seat, a hollow rotating platform is fixedly mounted on the bottom of one end of the second assembly seat away from the second fixed seat, a rotating motor for driving the rotating part of the hollow rotating platform to rotate is fixedly mounted on the fixed part of the hollow rotating platform, and a rotating seat is fixedly mounted on the bottom of the rotating part of the hollow rotating platform;

[0025] The measuring component includes a third assembly seat, which is fixedly mounted on the lower end of the rotating seat, a mounting plate is fixedly mounted on one side of the third assembly seat, a guide rail is fixedly mounted on the inner side of the mounting plate, a guide slider is slidably mounted on the guide rail, a cylinder seat is fixedly mounted on one side of the guide slider, a first cylinder is fixedly mounted on one side of the cylinder seat, a vertical block is fixedly mounted on the end of the mounting plate away from the first cylinder, a piston rod of the first cylinder is fixedly connected to one side of the vertical block, a force sensor is fixedly mounted on the end of the guide slider away from the cylinder seat, and a probe is fixedly mounted on the end of the force sensor away from the guide slider.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention realizes automatic, rapid and accurate measurement of the nuclear fuel grid clamping force. Compared with the traditional manual or semi-automatic measurement method, the high-precision double-head fully automatic clamping force measuring instrument not only reduces human errors, but also greatly improves the measurement efficiency, thereby ensuring the safe operation of the nuclear power plant and the fuel utilization rate;

[0028] By setting up the Y-axis drive mechanism, X-axis drive mechanism, positioning mechanism and clamping force measurement mechanism, a stable and reliable measurement system is formed, which can realize the clamping force detection of the nuclear fuel grid in different directions, so as to more comprehensively evaluate the performance of the grid. This multi-dimensional detection method helps to discover potential defects and problems, and provide stronger protection for the safe operation of nuclear power plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0030] Figure 2 This is one of the partial structural schematic diagrams of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0031] Figure 3 This is the second partial structural schematic diagram of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0032] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0033] Figure 5 The third schematic diagram of the partial structure of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0034] Figure 6 This is a fourth partial structural schematic diagram of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0035] Figure 7 This is a fifth partial structural schematic diagram of a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0036] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of part B in FIG.

[0037] Fig. 9 This is one of the partial structural schematic diagrams of the measuring components in a high-precision double-head fully automatic clamping force measuring instrument of the present invention;

[0038] Fig.10 This is the second partial structural schematic diagram of the measuring assembly in the high-precision double-head fully automatic clamping force measuring instrument of the present invention.

[0039] In the figure: 1, machine base; 101, roller; 102, foot; 103, three-color warning light;

[0040] 2. Y-axis driving mechanism; 201. Y-axis linear module; 202. Y-axis mounting seat; 203. Y-axis slide rail; 204. Y-axis slider; 205. support seat; 206. crossbeam;

[0041] 3. X-axis driving mechanism; 301. X-axis linear module; 302. X-axis slide rail; 303. first mounting seat; 304. X-axis slider; 305. second mounting seat;

[0042] 4. Positioning mechanism;

[0043] 401, first lifting mechanism; 4011, first Z-axis linear module; 4012, first fixed seat; 4013, first Z-axis slide rail; 4014, first Z-axis slide block;

[0044] 402, positioning assembly; 4021, first assembly seat; 4022, CCD camera; 4023, fill light;

[0045] 5. Clamping force measuring mechanism;

[0046] 501, second lifting mechanism; 5011, second Z-axis linear module; 5012, second fixed seat; 5013, second Z-axis slide rail; 5014, second Z-axis slide block;

[0047] 502, rotating mechanism; 5021, second assembly seat; 5022, hollow rotating platform; 5023, rotating motor; 5024, rotating seat;

[0048] 503, measuring assembly; 5031, third assembly seat; 5032, mounting plate; 5033, guide rail; 5034, guide slide block; 5035, cylinder seat; 5036, first cylinder; 5037, force sensor; 5038, stand block; 50381, positioning bolt; 5039, probe; 50391, reset block;

[0049] 6. Clamp; 601. Mounting table; 602. Second cylinder; 603. First clamping block; 604. Second clamping block;

[0050] 7. Protective cover. DETAILED DESCRIPTION

[0051] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0052] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0053] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the 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. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0054] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Example 1

[0056] See also Figures 1 to 10 The present embodiment provides a high-precision double-head fully automatic clamping force measuring instrument, including a machine base 1, a Y-axis driving mechanism 2, an X-axis driving mechanism 3, a positioning mechanism 4, a clamping force measuring mechanism 5, a fixture 6 and a controller.

[0057] Among them, a height-adjustable foot 102 is fixedly installed at the bottom of the base 1, and a roller 101 is installed at the bottom of the base 1. Through the foot 102, the base 1 can be placed stably on the ground. Through the set roller 101, when a certain base 1 is needed, the foot 102 can be retracted upward so that the roller 101 can contact the ground, thereby facilitating the pushing of the base 1 on the ground.

[0058] Wherein, the positioning mechanism 4 is used to coordinately position the nuclear fuel grid placed on the base 1;

[0059] The Y-axis driving mechanism 2 is arranged on the machine base 1, and is used to drive the positioning mechanism 4 and the clamping force measuring mechanism 5 to move along the Y-axis;

[0060] The X-axis driving mechanism 3 is arranged on the Y-axis driving mechanism 2, and the Y-axis driving mechanism 2 is used to drive the positioning mechanism 4 and the clamping force measuring mechanism 5 to move along the X-axis;

[0061] The clamp 6 is disposed on the machine base 1 , and is used to fix the nuclear fuel grid placed on the machine base 1 .

[0062] The controller is installed on the machine base 1, and the Y-axis driving mechanism 2, the X-axis driving mechanism 3, the positioning mechanism 4 and the clamping force measuring mechanism 5 are all controlled by the controller.

[0063] In this embodiment, the Y-axis driving mechanism 2 includes a Y-axis linear module 201, which is installed on the machine base 1. A Y-axis mounting seat 202 is fixedly installed on the slide table of the Y-axis linear module 201, a Y-axis slide rail 203 is fixedly installed on the machine base 1, a Y-axis slider 204 is fixedly connected to the bottom of the Y-axis mounting seat 202, and the Y-axis slider 204 is slidably installed on the Y-axis slide rail 203. The tops of both ends of the Y-axis mounting seat 202 are fixedly connected to support seats 205, and a crossbeam 206 is fixedly connected between the two support seats 205.

[0064] By controlling the servo motor on the Y-axis linear module 201 to drive the lead screw to rotate, the crossbeam 206 can be driven to move along the Y-axis, thereby driving the positioning mechanism 4 and the clamping force measuring mechanism 5 to move along the Y-axis.

[0065] In this embodiment, the X-axis driving mechanism 3 includes an X-axis linear module 301, which is installed on one side of the beam 206. A first mounting seat 303 is fixedly installed on the slide table of the X-axis linear module 301, and a second mounting seat 305 is fixedly installed on the first mounting seat 303. An X-axis slide rail 302 is fixedly installed on one side of the beam 206, and an X-axis slider 304 is fixedly installed on one side of the first mounting seat 303. The X-axis slider 304 is slidably installed on the X-axis slide rail 302.

[0066] By controlling the servo motor on the X-axis linear module 301 to drive the lead screw to rotate, the second mounting seat 305 can be driven to move along the X-axis, thereby driving the positioning mechanism 4 and the clamping force measuring mechanism 5 to move along the X-axis.

[0067] In this embodiment, the positioning mechanism 4 includes a first lifting mechanism 401 and a positioning assembly 402;

[0068] The first lifting mechanism 401 is used to drive the positioning assembly 402 to move along the Z axis;

[0069] The first lifting mechanism 401 includes a first Z-axis linear module 4011, a first fixed seat 4012 is fixedly installed on the slide of the first Z-axis linear module 4011, a first Z-axis slide rail 4013 is fixedly installed on one side of the second mounting seat 305, a first Z-axis slider 4014 is fixedly installed on one side of the first fixed seat 4012, and the first Z-axis slider 4014 is slidably installed on the first Z-axis slide rail 4013;

[0070] The positioning component 402 includes a first assembly seat 4021, which is fixedly mounted on the first fixed seat 4012. A CCD camera 4022 is fixedly mounted on one end of the first assembly seat 4021 away from the first fixed seat 4012. In order to ensure the shooting effect of the CCD camera 4022, a fill light 4023 for fill lighting the CCD camera 4022 is fixedly mounted on the lower end of the CCD camera 4022.

[0071] By adopting the above-mentioned technical scheme, the Y-axis driving mechanism 2 and the X-axis driving mechanism 3 set up can drive the CCD camera 4022 to photograph the nuclear fuel grid to be tested on the base 1, and transmit the photographed data to the controller. The controller analyzes and processes the data to obtain the specific coordinates of each nuclear fuel grid. During the movement of the CCD camera 4022, the servo motor on the first Z-axis linear module 4011 is controlled to drive the lead screw to rotate, thereby adjusting the height of the CCD camera 4022 to ensure that the positioning component 402 can clearly photograph the nuclear fuel grid.

[0072] In this embodiment, two groups of clamping force measuring mechanisms 5 are provided, and the two groups of clamping force measuring mechanisms 5 are respectively provided on both sides of the positioning mechanism 4;

[0073] Both sets of clamping force measuring mechanisms 5 include a second lifting mechanism 501, a rotating mechanism 502 and a measuring assembly 503;

[0074] Among them, the second lifting mechanism 501 includes a second Z-axis linear module 5011, a second fixed seat 5012 is fixedly installed on the slide table of the second Z-axis linear module 5011, a second Z-axis slide rail 5013 is fixedly installed on the second mounting seat 305, a second Z-axis slider 5014 is fixedly installed on one side of the second fixed seat 5012, and the second Z-axis slider 5014 is slidably installed on the second Z-axis slide rail 5013.

[0075] By controlling the servo motor on the second Z-axis linear module 5011 to drive the lead screw to rotate, the measuring component 503 can be driven to move along the Z-axis, so as to adjust the height of the measuring component 503 to adapt to nuclear fuel grids of different heights.

[0076] Among them, the rotating mechanism 502 includes a second assembly seat 5021, the second assembly seat 5021 is fixedly installed on the second fixed seat 5012, a hollow rotating platform 5022 is fixedly installed at the bottom of one end of the second assembly seat 5021 away from the second fixed seat 5012, a rotating motor 5023 for driving the rotating part of the hollow rotating platform 5022 to rotate is fixedly installed on the fixed part of the hollow rotating platform 5022, and a rotating seat 5024 is fixedly installed on the bottom of the rotating part of the hollow rotating platform 5022.

[0077] By controlling the rotation of the rotating shaft of the rotating motor 5023, the rotating seat 5024 can be driven to rotate through the hollow rotating platform 5022, so that the angle of the measuring component 503 can be adjusted, and the clamping force of the nuclear fuel grid in different directions can be detected.

[0078] Among them, the measuring component 503 includes a third assembly seat 5031, which is fixedly installed on the lower end of the rotating seat 5024, a mounting plate 5032 is fixedly installed on one side of the third assembly seat 5031, a guide slide rail 5033 is fixedly installed on the inner side of the mounting plate 5032, a guide slider 5034 is slidably installed on the guide slide rail 5033, a cylinder seat 5035 is fixedly installed on one side of the guide slider 5034, a first cylinder 5036 is fixedly installed on one side of the cylinder seat 5035, a vertical block 5038 is fixedly installed on one end of the mounting plate 5032 away from the first cylinder 5036, a piston rod of the first cylinder 5036 is fixedly connected to one side of the vertical block 5038, a force sensor 5037 is fixedly installed on one end of the guide slider 5034 away from the cylinder seat 5035, and a probe 5039 is fixedly installed on one end of the force sensor 5037 away from the guide slider 5034.

[0079] By adopting the above technical solution, when the clamping force of the nuclear fuel is detected, the piston rod of the first cylinder 5036 on the two measuring components 503 is controlled to retract. Since the piston rod of the first cylinder 5036 is fixedly connected to the block 5038, and the first cylinder 5036 is slidably installed on the guide rail 5033 through the guide slider 5034, the first cylinder 5036 drives the guide slider 5034 to move in the direction of the block 5038, so that the two probes 5039 can squeeze the two opposite sides of the nuclear fuel grid to complete the clamping force detection of the nuclear fuel grid.

[0080] In this embodiment, a reset stopper 50391 is fixedly installed on the lower end of the mounting plate 5032 , and a positioning bolt 50381 is fixedly installed on the vertical block 5038 .

[0081] By setting the reset stopper 50391, when the piston rod of the first cylinder 5036 is extended and reset, the reset stopper 50391 can block the probe 5039 to avoid excessive reset. By setting the positioning bolt 50381, when the piston rod of the first cylinder 5036 retracts to perform clamping force detection, the piston rod of the first cylinder 5036 can be prevented from retracting too much, thereby ensuring the accuracy of the clamping force applied to the nuclear fuel grid.

[0082] In this embodiment, the clamp 6 includes a mounting platform 601, which is fixedly mounted on the machine base 1. The second cylinder 602 and the second clamping block 604 are fixedly mounted on the top of the mounting platform 601, and the first clamping block 603 is fixedly mounted on the end of the piston rod of the second cylinder 602.

[0083] When in use, the nuclear fuel grid is placed on the mounting table 601, and then the piston rod of the second cylinder 602 is controlled to extend, thereby fixing the nuclear fuel grid between the first clamping block 603 and the second clamping block 604. The nuclear fuel grid can be unlocked by controlling the piston rod of the second cylinder 602 to retract.

[0084] In this embodiment, in order to improve the protection of the positioning mechanism 4 and the clamping force measuring mechanism 5 , a protective cover 7 is fixedly mounted on the second mounting seat 305 , and the positioning mechanism 4 and the clamping force measuring mechanism 5 are both located on the inner side of the protective cover 7 .

[0085] In this embodiment, a three-color alarm light 103 is fixedly installed on one side of the beam 206. The three-color alarm light 103 is controlled by a controller. Through the setting of the three-color alarm light 103, when the clamping force of the nuclear fuel grid under test fails the test, the controller controls the three-color alarm light 103 to emit a light alarm, so that the staff can discover it in time.

[0086] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0087] Working principle: When in use, first place the nuclear fuel grid on the mounting table 601, then control the piston rod of the second cylinder 602 to extend, clamp the nuclear fuel grid between the first clamping block 603 and the second clamping block 604, then control the Y-axis drive mechanism 2 and the X-axis drive mechanism 3 to drive the CCD camera 4022 to move, shoot the nuclear fuel grid fixed on the machine base 1, and transmit the shooting data to the controller, the controller analyzes and processes to obtain the specific coordinates of each nuclear fuel grid, and then according to the generated nuclear fuel grid coordinates, the controller controls the Y-axis drive mechanism 2 and the X-axis drive mechanism 3 to drive the clamping force measuring mechanism 5 to move above the nuclear fuel grid, and then controls the two second lifting mechanisms 501 to drive the measuring assembly 503 to move downward, so that the two measuring assemblies 503 are respectively located on both sides of the nuclear fuel grid, and then controls the first cylinders on the two measuring assemblies 503 The piston rod of 5036 retracts because the piston rod of the first cylinder 5036 is fixedly connected to the block 5038, and the first cylinder 5036 is slidably installed on the guide rail 5033 through the guide slider 5034, so that the first cylinder 5036 drives the guide slider 5034 to move in the direction of the block 5038, so that the two probes 5039 can squeeze the two opposite sides of the nuclear fuel grid. When the probe 5039 applies a clamping force to the nuclear fuel grid, the force sensor 5037 generates a pressure signal and transmits the pressure signal to the controller. After analyzing and processing the transmitted pressure signal, the controller obtains the clamping force data. The measured clamping force is stored in the storage module through the controller, and then the rotating motor 5023 is controlled to drive the probe 5039 to rotate a certain angle, and then the piston rod of the first cylinder 5036 is controlled to retract to complete the clamping force detection of different angles of the nuclear fuel grid.

[0088] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision double-head fully automatic clamping force measuring instrument, characterized in that: include: Machine base (1); A clamping force measuring mechanism (5), wherein the clamping force measuring mechanism (5) is capable of detecting the clamping force in different directions on the nuclear fuel grid placed on the machine base (1); A positioning mechanism (4), the positioning mechanism (4) being used to coordinately position a nuclear fuel grid placed on the base (1); A Y-axis driving mechanism (2), wherein the Y-axis driving mechanism (2) is arranged on the machine base (1), and the Y-axis driving mechanism (2) is used to drive the positioning mechanism (4) and the clamping force measuring mechanism (5) to move along the Y-axis; An X-axis driving mechanism (3), wherein the X-axis driving mechanism (3) is arranged on the Y-axis driving mechanism (2), and the Y-axis driving mechanism (2) is used to drive the positioning mechanism (4) and the clamping force measuring mechanism (5) to move along the X-axis; A clamp (6), the clamp (6) being arranged on the machine base (1), and the clamp (6) being used to fix the nuclear fuel grid placed on the machine base (1); A controller is installed on the machine base (1); the Y-axis driving mechanism (2), the X-axis driving mechanism (3), the positioning mechanism (4) and the clamping force measuring mechanism (5) are all controlled by the controller.

2. A high-precision double-head fully automatic clamping force measuring instrument according to claim 1, characterized in that: The Y-axis driving mechanism (2) comprises a Y-axis linear module (201), the Y-axis linear module (201) is mounted on the machine base (1), a Y-axis mounting seat (202) is fixedly mounted on the slide table of the Y-axis linear module (201), a Y-axis slide rail (203) is fixedly mounted on the machine base (1), a Y-axis slider (204) is fixedly connected to the bottom of the Y-axis mounting seat (202), the Y-axis slider (204) is slidably mounted on the Y-axis slide rail (203), the tops of both ends of the Y-axis mounting seat (202) are fixedly connected to support seats (205), and a crossbeam (206) is fixedly connected between the two support seats (205).

3. A high-precision double-head fully automatic clamping force measuring instrument according to claim 2, characterized in that: The X-axis driving mechanism (3) comprises an X-axis linear module (301), the X-axis linear module (301) is mounted on one side of the crossbeam (206), a first mounting seat (303) is fixedly mounted on the slide table of the X-axis linear module (301), a second mounting seat (305) is fixedly mounted on the first mounting seat (303), an X-axis slide rail (302) is fixedly mounted on one side of the crossbeam (206), an X-axis slider (304) is fixedly mounted on one side of the first mounting seat (303), and the X-axis slider (304) is slidably mounted on the X-axis slide rail (302).

4. A high-precision double-head fully automatic clamping force measuring instrument according to claim 3, characterized in that: The positioning mechanism (4) comprises a first lifting mechanism (401) and a positioning component (402); The first lifting mechanism (401) is used to drive the positioning assembly (402) to move along the Z-axis. The first lifting mechanism (401) includes a first Z-axis linear module (4011). A first fixed seat (4012) is fixedly installed on the slide table of the first Z-axis linear module (4011). A first Z-axis slide rail (4013) is fixedly installed on one side of the second mounting seat (305). A first Z-axis slider (4014) is fixedly installed on one side of the first fixed seat (4012). The first Z-axis slider (4014) is slidably installed on the first Z-axis slide rail (4013).

5. A high-precision double-head fully automatic clamping force measuring instrument according to claim 4, characterized in that: The positioning component (402) comprises a first assembly seat (4021), the first assembly seat (4021) is fixedly mounted on the first fixing seat (4012), and a CCD camera (4022) is fixedly mounted on one end of the first assembly seat (4021) away from the first fixing seat (4012).

6. A high-precision double-head fully automatic clamping force measuring instrument according to claim 5, characterized in that: A fill light (4023) for providing fill light to the CCD camera (4022) is fixedly mounted at the lower end of the CCD camera (4022).

7. A high-precision double-head fully automatic clamping force measuring instrument according to claim 6, characterized in that: The clamping force measuring mechanisms (5) are provided in two groups, and the two groups of the clamping force measuring mechanisms (5) are respectively provided on both sides of the positioning mechanism (4); The two groups of clamping force measuring mechanisms (5) both comprise a second lifting mechanism (501), a rotating mechanism (502) and a measuring assembly (503).

8. The high-precision double-head fully automatic clamping force measuring instrument according to claim 7, characterized in that: The second lifting mechanism (501) comprises a second Z-axis linear module (5011), a second fixed seat (5012) is fixedly mounted on the slide table of the second Z-axis linear module (5011), a second Z-axis slide rail (5013) is fixedly mounted on the second mounting seat (305), a second Z-axis slider (5014) is fixedly mounted on one side of the second fixed seat (5012), and the second Z-axis slider (5014) is slidably mounted on the second Z-axis slide rail (5013).

9. A high-precision double-head fully automatic clamping force measuring instrument according to claim 8, characterized in that: The rotating mechanism (502) comprises a second assembly seat (5021), wherein the second assembly seat (5021) is fixedly mounted on the second fixed seat (5012); a hollow rotating platform (5022) is fixedly mounted on the bottom of one end of the second assembly seat (5021) away from the second fixed seat (5012); a rotating motor (5023) for driving the rotating part of the hollow rotating platform (5022) to rotate is fixedly mounted on the fixed part of the hollow rotating platform (5022); and a rotating seat (5024) is fixedly mounted on the bottom of the rotating part of the hollow rotating platform (5022).

10. A high-precision double-head fully automatic clamping force measuring instrument according to claim 9, characterized in that: The measuring assembly (503) comprises a third assembly seat (5031), the third assembly seat (5031) is fixedly mounted on the lower end of the rotating seat (5024), a mounting plate (5032) is fixedly mounted on one side of the third assembly seat (5031), a guide rail (5033) is fixedly mounted on the inner side of the mounting plate (5032), a guide slider (5034) is slidably mounted on the guide rail (5033), a cylinder seat (5035) is fixedly mounted on one side of the guide slider (5034), and the cylinder seat (5035) is fixedly mounted on the inner side of the mounting plate (5032). 5), a first cylinder (5036) is fixedly mounted on one side of the guide slider (5034), a vertical block (5038) is fixedly mounted on one end of the installation plate (5032) away from the first cylinder (5036), a piston rod of the first cylinder (5036) is fixedly connected to one side of the vertical block (5038), a force sensor (5037) is fixedly mounted on one end of the guide slider (5034) away from the cylinder seat (5035), and a probe (5039) is fixedly mounted on one end of the force sensor (5037) away from the guide slider (5034).

Images