Nuclear reactor moderator pool embedded part machining equipment and machining method thereof

Abstract

The invention belongs to the field of nuclear reactors, and particularly relates to nuclear reactor moderator pool embedded part machining equipment and a machining method thereof. The invention relates to a nuclear reactor moderator pool embedded part machining device. The equipment comprises a base, adjustable base supporting legs, a fixed vacuum chuck, a displacement sensor, an X-axis axial gradienter, a Y-axis axial gradienter, an X-axis axial moving system, a Y-axis axial moving system, a Z-axis axial moving system, a servo system, a Z-axis machining spindle system, a cutter and a displacement sensor fixing device. The three-axis machining auxiliary displacement sensor has the remarkable effects that the traditional three-axis machining auxiliary displacement sensor is adopted for Z-axis axial compensation, so that the plane precision and the horizontal precision of machining of the reactor moderator pool embedded part are improved. And a machining method is adopted to replace an existing manual polishing method, so that the working efficiency is improved, and the working intensity is reduced.

Description

Technical Field

[0001] The invention belongs to the field of nuclear reactors, and in particular relates to a nuclear reactor moderator pool embedded part processing device and a processing method thereof. Background Art

[0002] In the nuclear industry, the nuclear reactor moderator pool is the carrier of the moderator of the nuclear reactor. It has the function of maintaining the storage of moderators when the nuclear reactor is operating normally, and storing the reactor internal components when the reactor is shut down. The internal component storage rack is the only carrier for storing the nuclear reactor internal components in the reactor moderator pool, and is installed in the nuclear reactor moderator pool by bolt connection. However, when the nuclear reactor internal component storage rack is installed by bolt connection, the plane of the embedded parts at the bottom of the reactor moderator pool and the bottom surface of the support of the internal component storage rack fit each other, so the horizontality and plane accuracy of the plane of the embedded parts at the bottom of the reactor moderator pool directly affect the accuracy of the internal component storage rack.

[0003] The existing technology cannot solve the above problems. Summary of the invention

[0004] Aiming at the defects of the prior art, the present invention provides a nuclear reactor moderator pool embedded parts processing equipment and a processing method thereof.

[0005] The present invention is implemented as follows: a nuclear reactor moderator pool embedded parts processing equipment, wherein the equipment includes: a base, an adjustable base support foot, a fixed vacuum suction cup, a displacement sensor, an X-axis axial level, a Y-axis axial level, an X-axis axial movement system, a Y-axis axial movement system, a Z-axis axial movement system, a servo system, a Z-axis processing spindle system, a tool, and a displacement sensor fixing device.

[0006] The above-mentioned nuclear reactor moderator pool embedded parts processing equipment, wherein the adjustable base support feet are installed under the base to support and adjust the overall levelness of the base and the equipment; the fixed vacuum suction cup is installed under the base to fix the base and the equipment as a whole on the pool embedded parts; the displacement sensor is installed on the side of the base to measure the Z-axis axial displacement of the base and the equipment as a whole due to the Z-axis reverse axial force generated by the Z-axis during the cutting process; the X-axis axial level is installed on the base, parallel to the X-axis axial direction, and used to display the X-axis horizontality value of the equipment; the Y-axis axial level is installed on the base, parallel to the Y-axis axial direction, and used to display the Y-axis horizontality value of the equipment Levelness value; the Y-axis axial movement system is installed on the base; the X-axis axial movement system is installed on the Y-axis axial movement system; the Z-axis axial movement system is installed on the Y-axis axial movement system; the X-axis axial movement system, the Y-axis axial movement system and the Z-axis axial movement system together constitute a three-dimensionally movable tool support and fixing system; the servo system is installed on the Z-axis axial movement system; the Z-axis machining spindle system is installed on the Z-axis axial movement system; the tool is installed on the Z-axis machining spindle system for cutting or grinding the embedded parts of the pool; the displacement sensor fixing device is installed on the side of the base for fixing the displacement sensor.

[0007] A nuclear reactor moderator pool embedded parts processing equipment as described above, wherein the X-axis axial movement system includes an X-axis system bracket, an X-axis linear sliding guide, an X-axis servo motor, an X-axis servo motor fixed bracket, an X-axis system coupling, an X-axis bearing support, an X-axis bearing, and an X-axis ball screw; the X-axis linear sliding guide is installed on the X-axis system bracket, the X-axis servo motor is installed on the X-axis servo motor fixed bracket, the X-axis servo motor is installed on the X-axis system bracket through the X-axis servo motor fixed bracket, the X-axis system coupling is used to connect the X-axis servo motor and the X-axis ball screw and transmit motion and power through the X-axis system coupling, the X-axis bearing is used to support the X-axis ball screw and ensure the rotation of the X-axis ball screw, and the X-axis bearing support is used to install and fix the X-axis bearing.

[0008] A nuclear reactor moderator pool embedded parts processing equipment as described above, wherein the Y-axis axial movement system includes a Y-axis linear sliding guide, a Y-axis bearing weight sliding guide, a Y-axis bearing weight sliding guide pad, a Y-axis servo motor, a Y-axis servo motor fixing bracket, a Y-axis system coupling, a Y-axis bearing support, a Y-axis bearing, and a Y-axis ball screw; the Y-axis linear sliding guide is installed on the base, connected to the X-axis system bracket through the slider on the linear sliding guide 801, and drives the X-axis system bracket to move so as to drive the X-axis axial movement system to move as a whole; the Y-axis weight sliding guide is installed on the base, and the Y-axis weight sliding guide pad can It slides on the Y-axis weight sliding guide rail, the Y-axis weight sliding guide rail pad is connected to the X-axis system bracket, and the X-axis system bracket is driven to move through the Y-axis weight sliding guide rail pad to drive the X-axis axial movement system to move as a whole; the Y-axis servo motor is installed on the Y-axis servo motor fixing bracket, and the Y-axis servo motor is installed on the base through the Y-axis servo motor fixing bracket. The Y-axis system coupling is used to connect the Y-axis servo motor and the Y-axis ball screw and transmit motion and power through the Y-axis system coupling. The Y-axis bearing is used to support the Y-axis ball screw and ensure the rotation of the Y-axis ball screw. The Y-axis bearing support is used to install and fix the Y-axis bearing.

[0009] A nuclear reactor moderator pool embedded parts processing equipment as described above, wherein the Z-axis axial movement system includes a Z-axis system base plate, a Z-axis linear sliding guide, a Z-axis servo motor, a Z-axis servo motor fixed bracket, a Z-axis system coupling, a Z-axis bearing support, a Z-axis bearing, and a Z-axis ball screw; the Z-axis system base plate is installed on the servo system box, the lower part of the servo system box is connected to the slider on the X-axis linear sliding guide, and the X-direction movement of the Z-axis axial movement system is driven by the X-direction movement of the slider on the X-axis linear sliding guide; the Z-axis linear sliding guide is installed on the Z-axis system base plate, the Z-axis servo motor is installed on the Z-axis servo motor fixed bracket, the Z-axis servo motor is installed on the Z-axis system base plate through the Z-axis servo motor fixed bracket, the Z-axis system coupling is used to connect the Z-axis servo motor and the Z-axis ball screw and transmit motion and power through the Z-axis system coupling, the Z-axis bearing is used to support the Z-axis ball screw and ensure the rotation of the Z-axis ball screw, and the Z-axis bearing support is used to install and fix the Z-axis bearing.

[0010] A nuclear reactor moderator pool embedded parts processing equipment as described above, wherein the Z-axis processing spindle system includes a Z-axis processing spindle system bracket, a spindle motor, a spindle motor fixing bracket, a spindle motor pulley, a transmission belt, a spindle pulley, and a processing spindle; the spindle motor is installed on the spindle motor fixing bracket, the spindle motor pulley is installed on the spindle motor spindle, the spindle pulley is installed on the processing spindle, and the processing spindle is installed on the processing spindle system bracket 1101; the spindle motor pulley and the spindle pulley are connected by a transmission belt to transmit the power and motion of the spindle motor to the processing spindle to realize the movement of the processing spindle.

[0011] The above-mentioned nuclear reactor moderator pool embedded parts processing equipment, wherein the displacement sensor fixing device comprises a device fixing bracket, a displacement sensor fixing sleeve, a displacement sensor movable push rod, a displacement sensor fixing device shell, a spring force adjustment sleeve, a spring, a movable push rod push block, a movable push rod push block fixing screw, a movable push rod pull block, and a connecting pin; the displacement sensor fixing sleeve is fixed to the side of the base for installing the displacement sensor, the device fixing bracket is fixed to the side of the base by bolts, and is used to fix the displacement sensor fixing device shell, the spring force adjustment sleeve is processed with an internal thread, and the spring force of the spring is adjusted by screwing the internal thread of the spring force adjustment sleeve with the internal thread on the displacement sensor fixing device shell, the movable push rod push block is fixed to the movable push rod of the displacement sensor by the movable push rod push block fixing screw, so that the spring force of the spring causes the movable push rod of the displacement sensor to move and press the displacement sensor to fix the displacement sensor; the movable push rod pull block is connected to the movable push rod of the displacement sensor by a connecting pin, and the movable push rod pull block is pulled to move the movable push rod of the displacement sensor to the right, thereby releasing the displacement sensor.

[0012] A method for processing equipment for processing embedded parts of a nuclear reactor moderator pool, comprising the following steps:

[0013] Step 1: Install the equipment above the embedded parts of the reactor moderator pool, adjust the adjustment nuts of the four base support feet to adjust the horizontal accuracy of the equipment, and use the X-axis axial level and Y-axis axial level on the equipment base to make the overall horizontal accuracy of the equipment meet the requirements;

[0014] Step 2: Install the fixed vacuum suction cup to make it adsorb on the embedded part of the reactor moderator water pool, and pass compressed air into the fixed vacuum suction cup to fix the equipment base on the embedded part of the reactor moderator water pool. Pay attention to observe the levelness values ​​of the X-axis axial level meter and the Y-axis axial level meter. If the levelness value is out of tolerance, repeat step 1 and then repeat step 2;

[0015] Step 3: Adjust the displacement sensor installed on the side of the base so that the displacement sensor contact is pressed on the embedded part of the reactor moderator pool;

[0016] Step 4: Install the machining tool on the Z-axis machining spindle, start the equipment and check the operation of the equipment; set the servo system X-axis axial movement value, Y-axis axial movement value, and Z-axis axial movement value to 0; set the displacement sensor indication value to 0;

[0017] Step 5: Find the highest point of the reactor moderator pool embedded parts that need to be machined, start the Z-axis machining spindle to rotate the tool and control the servo system to lower the Z-axis to start machining;

[0018] Step 6: Monitor the displacement sensor indication. When the displacement sensor indication is greater than 0, control the servo system to raise the Z axis until the displacement sensor indication is equal to 0.

[0019] Step 7: Control the servo system to move the X-axis and Y-axis to process the entire plane of the reactor moderator pool embedded parts. During the processing, when the displacement sensor indicates a value greater than 0, repeat step 6 and then continue to perform step 7 until the entire plane processing is completed, so that the plane accuracy and horizontal accuracy of the reactor moderator pool embedded parts meet the requirements;

[0020] Step 8: Control the servo system to raise the Z axis, cut off the power supply and fix the vacuum suction cup air source to disassemble the processing equipment.

[0021] The significant effect of the present invention is that the present invention improves the plane accuracy and horizontal accuracy of the processing of the reactor moderator pool embedded parts by using the traditional three-axis processing auxiliary displacement sensor to perform Z-axis axial compensation. By using the mechanical processing method to replace the existing manual grinding method, the work efficiency is improved and the work intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the X-axis axial movement system of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the Y-axis axial movement system of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the Z-axis axial movement system of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the Z-axis machining spindle system of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the displacement sensor fixing device of the present invention.

[0028] In the figure: 1. Base, 2. Adjustable base support feet, 3. Fixed vacuum suction cup, 4. Displacement sensor, 5. X-axis axial level, 6. Y-axis axial level, 7. X-axis axial movement system, 8. Y-axis axial movement system, 9. Z-axis axial movement system, 10. Servo system, 11. Z-axis machining spindle system, 12. Tool, 13. Displacement sensor fixture, 701. X-axis system bracket, 702. X-axis linear slide guide, 703. X-axis servo Servo motor, 704. X-axis servo motor fixing bracket, 705. X-axis system coupling, 706. X-axis bearing support, 707. X-axis bearing, 708. X-axis ball screw, 801. Y-axis linear sliding guide, 802. Y-axis heavy sliding guide, 803. Y-axis heavy sliding guide pad, 804. Y-axis servo motor, 805. Y-axis servo motor fixing bracket, 806. Y-axis system coupling, 807. Y-axis bearing support, 808. Y-axis Bearing, 809. Y-axis ball screw, 901. Z-axis system base plate, 902. Z-axis linear slide guide, 903. Z-axis servo motor, 904. Z-axis servo motor fixed bracket, 905. Z-axis system coupling, 906. Z-axis bearing support, 907. Z-axis bearing, 908. Z-axis ball screw, 1101. Z-axis processing spindle system bracket, 1102. spindle motor, 1103. spindle motor fixed bracket, 1104. spindle motor pulley , 1105. transmission belt, 1106. spindle pulley, 1107. machining spindle, 1301. device fixing bracket, 1302. displacement sensor fixing sleeve, 1303. displacement sensor movable push rod, 1304. displacement sensor fixing device housing, 1305. spring force adjustment sleeve, 1306. spring, 1307. movable push rod push block, 1308. movable push rod push block fixed push screw, 1309. movable push rod pull block, 1310. connecting pin. DETAILED DESCRIPTION

[0029] A nuclear reactor moderator pool embedded parts processing equipment, the equipment includes: a base 1, an adjustable base support foot 2, a fixed vacuum suction cup 3, a displacement sensor 4, an X-axis axial level 5, a Y-axis level 6, an X-axis axial movement system 7, a Y-axis axial movement system 8, a Z-axis axial movement system 9, a servo system 10, a Z-axis processing spindle system 11, a tool 12, and a displacement sensor fixing device 13; the adjustable base support foot 2 is installed under the base 1 to support and adjust the overall level of the base and the equipment; the fixed vacuum suction cup 3 is installed under the base to fix the base and the equipment as a whole on the pool embedded parts; the displacement sensor 4 is installed on the side of the base 1 to measure the Z-axis axial displacement of the base and the equipment as a whole due to the Z-axis reverse axial force generated during the cutting process. The X-axis axial level 5 is installed on the base 1, parallel to the X-axis axis, and is used to display the X-axis horizontal value of the device; the Y-axis level 6 is installed on the base 1, parallel to the Y-axis axis, and is used to display the Y-axis horizontal value of the device; the Y-axis axial movement system 8 is installed on the base 1; the X-axis axial movement system 7 is installed on the Y-axis axial movement system 8; the Z-axis axial movement system 9 is installed on the Y-axis axial movement system 8; the servo system 10 is installed on the Z-axis axial movement system 9; the Z-axis machining spindle system 11 is installed on the Z-axis axial movement system 9; the tool 12 is installed on the Z-axis machining spindle system 11 for cutting or grinding the embedded parts of the pool; the displacement sensor fixing device 13 is installed on the side of the base 1 to fix the displacement sensor 4.

[0030] Furthermore, the X-axis axial movement system 7 includes an X-axis system bracket 701, an X-axis linear sliding guide 702, an X-axis servo motor 703, an X-axis servo motor fixed bracket 704, an X-axis system coupling 705, an X-axis bearing support 706, an X-axis bearing 707, and an X-axis ball screw 708; the X-axis linear sliding guide 702 is installed on the X-axis system bracket 701, the X-axis servo motor 703 is installed on the X-axis servo motor fixed bracket 704, the X-axis servo motor 703 is installed on the X-axis system bracket 701 through the X-axis servo motor fixed bracket 704, the X-axis system coupling 705 is used to connect the X-axis servo motor 703 and the X-axis ball screw 708 and transmit motion and power through the X-axis system coupling 705, the X-axis bearing 707 is used to support the X-axis ball screw 708 and ensure the rotation of the X-axis ball screw 708, and the X-axis bearing support 706 is used to install and fix the X-axis bearing 707.

[0031] Furthermore, the Y-axis axial movement system 8 includes a Y-axis linear sliding guide 801, a Y-axis weight sliding guide 802, a Y-axis weight sliding guide pad 803, a Y-axis servo motor 804, a Y-axis servo motor fixing bracket 805, a Y-axis system coupling 806, a Y-axis bearing support 807, a Y-axis bearing 808, and a Y-axis ball screw 809; the Y-axis linear sliding guide 801 is installed on the base 1, connected to the X-axis system bracket 701 through a slider on the linear sliding guide 801, and drives the X-axis system bracket 701 to move so as to drive the X-axis axial movement system 7 to move as a whole; the Y-axis weight sliding guide 802 is installed on the base 1, and the Y-axis weight sliding guide pad 803 can slide on the Y-axis weight sliding guide 802, The Y-axis weight sliding guide pad 803 is connected to the X-axis system bracket 701, and the X-axis system bracket 701 is driven to move through the Y-axis weight sliding guide pad 803, so as to drive the X-axis axial movement system 7 to move as a whole; the Y-axis servo motor 804 is installed on the Y-axis servo motor fixing bracket 805, and the Y-axis servo motor 804 is installed on the base 1 through the Y-axis servo motor fixing bracket 805. The Y-axis system coupling 806 is used to connect the Y-axis servo motor 804 and the Y-axis ball screw 809 and transmit motion and power through the Y-axis system coupling 806. The Y-axis bearing 808 is used to support the Y-axis ball screw 809 and ensure the rotation of the Y-axis ball screw 809. The Y-axis bearing support 807 is used to install and fix the Y-axis bearing 808.

[0032] Furthermore, the Z-axis axial movement system 9 includes a Z-axis system base plate 901, a Z-axis linear sliding guide rail 902, a Z-axis servo motor 903, a Z-axis servo motor fixing bracket 904, a Z-axis system coupling 905, a Z-axis bearing support 906, a Z-axis bearing 907, and a Z-axis ball screw 908; the Z-axis system base plate 901 is installed on the housing of the servo system 10, and the lower part of the housing of the servo system 10 is connected to the slider on the X-axis linear sliding guide rail 702, and the X-direction movement of the Z-axis axial movement system 9 is driven by the X-direction movement of the slider on the X-axis linear sliding guide rail 702; the Z-axis linear sliding The guide rail 902 is installed on the Z-axis system base plate 901, the Z-axis servo motor 903 is installed on the Z-axis servo motor fixing bracket 904, the Z-axis servo motor 903 is installed on the Z-axis system base plate 901 through the Z-axis servo motor fixing bracket 904, the Z-axis system coupling 905 is used to connect the Z-axis servo motor 903 and the Z-axis ball screw 908 and transmit motion and power through the Z-axis system coupling 905, the Z-axis bearing 907 is used to support the Z-axis ball screw 908 and ensure the rotation of the Z-axis ball screw 908, and the Z-axis bearing support 906 is used to install and fix the Z-axis bearing 907.

[0033] Furthermore, the Z-axis machining spindle system 11 includes a Z-axis machining spindle system bracket 1101, a spindle motor 1102, a spindle motor fixed bracket 1103, a spindle motor pulley 1104, a transmission belt 1105, a spindle pulley 1106, and a machining spindle 1107; the spindle motor 1102 is installed on the spindle motor fixed bracket 1103, the spindle motor pulley 1104 is installed on the spindle of the spindle motor 1102, the spindle pulley 1106 is installed on the machining spindle 1107, and the machining spindle 1107 is installed on the machining spindle system bracket 1101; the spindle motor pulley 1104 and the spindle pulley 1106 are connected by the transmission belt 1105 to transmit the power and motion of the spindle motor 1102 to the machining spindle 1107 to realize the movement of the machining spindle 1107.

[0034] Further, the displacement sensor fixing device 13 includes a device fixing bracket 1301, a displacement sensor fixing shell 1302, a displacement sensor movable push rod 1303, a displacement sensor fixing device shell 1304, a spring force adjustment shell 1305, a spring 1306, a movable push rod push block 1307, a movable push rod push block fixed top screw 1308, a movable push rod pull block 1309, and a connecting pin 1310; the displacement sensor fixing shell 1302 is fixed to the side of the base 1 for installing the displacement sensor 4, and the device fixing bracket 1301 is fixed to the side of the base 1 by bolts for fixing the displacement sensor fixing device shell 1304, and the spring force adjustment shell 130 5 is processed with an internal thread, and the spring force of the spring 1306 is adjusted by screwing the internal thread of the sleeve 1305 with the internal thread on the housing 1304 of the displacement sensor fixing device. The movable push rod push block 1307 is fixed to the movable push rod 1303 of the displacement sensor through the movable push rod push block fixing screw 1308, so that the spring force of the spring 1306 makes the movable push rod 1303 of the displacement sensor move to press the displacement sensor 4 to fix the displacement sensor 4; the movable push rod pull block 1309 is connected to the movable push rod 1303 of the displacement sensor through the connecting pin 1310, and the movable push rod pull block 1309 is pulled to make the movable push rod 1303 of the displacement sensor move rightward, thereby releasing the displacement sensor 4.

[0035] As another aspect of the present invention, the present invention also proposes a processing method for a nuclear reactor moderator pool embedded parts processing equipment, and the processing method comprises the following steps:

[0036] Step 1: Install the equipment above the embedded parts of the reactor moderator pool, adjust the adjustment nuts of the four base support feet to adjust the horizontal accuracy of the equipment, and use the X-axis axial level and Y-axis axial level on the equipment base to make the overall horizontal accuracy of the equipment meet the requirements;

[0037] Step 2: Install the fixed vacuum suction cup to make it adsorb on the embedded part of the reactor moderator water pool, and pass compressed air into the fixed vacuum suction cup to fix the equipment base on the embedded part of the reactor moderator water pool. Pay attention to observe the levelness values ​​of the X-axis axial level meter and the Y-axis axial level meter. If the levelness value is out of tolerance, repeat step 1 and then repeat step 2;

[0038] Step 3: Adjust the displacement sensor installed on the side of the base so that the displacement sensor contact is pressed on the embedded part of the reactor moderator pool;

[0039] Step 4: Install the machining tool on the Z-axis machining spindle, start the equipment and check the operation of the equipment; set the servo system X-axis axial movement value, Y-axis axial movement value, and Z-axis axial movement value to 0; set the displacement sensor indication value to 0;

[0040] Step 5: Find the highest point of the reactor moderator pool embedded parts that need to be machined, start the Z-axis machining spindle to rotate the tool and control the servo system to lower the Z-axis to start machining;

[0041] Step 6: Monitor the displacement sensor indication. When the displacement sensor indication is greater than 0, control the servo system to raise the Z axis until the displacement sensor indication is equal to 0.

[0042] Step 7: Control the servo system to move the X-axis and Y-axis to process the entire plane of the reactor moderator pool embedded parts. During the processing, when the displacement sensor indicates a value greater than 0, repeat step 6 and then continue to perform step 7 until the entire plane processing is completed, so that the plane accuracy and horizontal accuracy of the reactor moderator pool embedded parts meet the requirements;

[0043] Step 8: Control the servo system to raise the Z axis, cut off the power supply and fix the vacuum suction cup air source to disassemble the processing equipment.

[0044] Here is a specific example

[0045] When the height of embedded parts exceeds tolerance during equipment installation and construction, this equipment can be used to grind the embedded parts to meet the design requirements. The specific operations are as follows:

[0046] First, install the equipment above the reactor moderator pool embedded parts, adjust the adjustment nuts of the four base support feet to adjust the horizontal accuracy of the equipment, and use the X-axis axial level and Y-axis axial level on the equipment base to assist in making the overall horizontal accuracy of the equipment meet the requirements; after adjusting the equipment to a horizontal state, adsorb the fixed vacuum suction cup on the reactor moderator pool embedded parts, and pass compressed air into the fixed vacuum suction cup to fix the equipment base on the reactor moderator pool embedded parts. Pay attention to observe the horizontal values ​​of the X-axis and Y-axis levels. If the horizontal values ​​are out of tolerance, readjust the horizontality of the equipment to ensure that the equipment base is in a horizontal state when it is fixed on the reactor moderator pool embedded parts; after completion, adjust the displacement sensor installed on the side of the base, press the displacement sensor contact on the reactor moderator pool embedded parts, and then install the tool on the Z-axis spindle. After installation, start the equipment and check the equipment operation. At this point, the preparation work before embedded parts processing is completed.

[0047] Furthermore, the equipment is started and operated. After the operation, the servo system X-axis axial movement value, Y-axis axial movement value, and Z-axis axial movement value are set to 0, and the displacement sensor indication is set to 0 (value>0, the equipment is below the original state, otherwise, it is above the original state); find the highest point of the reactor moderator water pool embedded parts that need to be machined, start the Z-axis spindle to rotate the tool and control the servo system to lower the Z-axis to start processing; the tool mills the reactor moderator water pool embedded parts to process the flatness of the embedded parts to an acceptable range; instruct the CNC servo system Z-axis spindle to lift, instruct the CNC servo system Z-axis spindle to stop rotating, and replace the grinding wheel; restart the Z-axis spindle to rotate the tool, and further process the rough surface of the reactor moderator water pool embedded parts to make its roughness reach an acceptable range.

Claims

1. A nuclear reactor moderator pool embedded parts processing equipment, characterized in that: The device comprises: a base (1), an adjustable base support foot (2), a fixed vacuum suction cup (3), a displacement sensor (4), an X-axis axial level (5), a Y-axis axial level (6), an X-axis axial movement system (7), a Y-axis axial movement system (8), a Z-axis axial movement system (9), a servo system (10), a Z-axis machining spindle system (11), a tool (12), and a displacement sensor fixing device (13).

2. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 1, characterized in that: The adjustable base support foot (2) is installed under the base (1) to support and adjust the overall horizontality of the base and the device; the fixed vacuum suction cup (3) is installed under the base (1) to fix the base and the device as a whole on the embedded parts of the water tank; the displacement sensor (4) is installed on the side of the base (1) to measure the Z-axis axial displacement of the base and the device as a whole caused by the Z-axis reverse axial force generated by the Z-axis during the cutting process; the X-axis axial level (5) is installed on the base (1) and is parallel to the X-axis axial direction and is used to display the X-axis horizontality value of the device; the Y-axis axial level (6) is installed on the base (1) and is parallel to the Y-axis axial direction and is used to display the Y-axis horizontality value of the device; the Y-axis axial movement system (8) is installed on the base (1); the X-axis The axial movement system (7) is installed on the Y-axis axial movement system (8); the Z-axis axial movement system (9) is installed on the Y-axis axial movement system (8); the X-axis axial movement system (7), the Y-axis axial movement system (8) and the Z-axis axial movement system (9) together constitute a three-dimensionally movable tool support and fixing system; the servo system (10) is installed on the Z-axis axial movement system (9); the Z-axis machining spindle system (11) is installed on the Z-axis axial movement system (9); the tool (12) is installed on the Z-axis machining spindle system (11) for cutting or grinding the embedded parts of the pool; and the displacement sensor fixing device (13) is installed on the side of the base (1) for fixing the displacement sensor (4).

3. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 2, characterized in that: The X-axis axial movement system (7) comprises an X-axis system bracket (701), an X-axis linear sliding guide rail (702), an X-axis servo motor (703), an X-axis servo motor fixed bracket (704), an X-axis system coupling (705), an X-axis bearing support (706), an X-axis bearing (707), and an X-axis ball screw (708); the X-axis linear sliding guide rail (702) is mounted on the X-axis system bracket (701), the X-axis servo motor (703) is mounted on the X-axis servo motor fixed bracket (704), and the X-axis The X-axis servo motor (703) is mounted on the X-axis system bracket (701) through the X-axis servo motor fixing bracket (704); the X-axis system coupling (705) is used to connect the X-axis servo motor (703) and the X-axis ball screw (708) and transmit motion and power through the X-axis system coupling (705); the X-axis bearing (707) is used to support the X-axis ball screw (708) and ensure the rotation of the X-axis ball screw (708); the X-axis bearing support (706) is used to install and fix the X-axis bearing (707).

4. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 3, characterized in that: The Y-axis axial movement system (8) comprises a Y-axis linear sliding guide (801), a Y-axis weight sliding guide (802), a Y-axis weight sliding guide pad (803), a Y-axis servo motor (804), a Y-axis servo motor fixing bracket (805), a Y-axis system coupling (806), a Y-axis bearing support (807), a Y-axis bearing (808), and a Y-axis ball screw (809); the Y-axis linear sliding guide (801) is installed on the base (1), connected to the X-axis system bracket (701) via a slider on the linear sliding guide 801, and drives the X-axis system bracket (701) to move so as to drive the X-axis axial movement system (7) to move as a whole; the Y-axis weight sliding guide (802) is installed on the base (1), the Y-axis weight sliding guide pad (803) can slide on the Y-axis weight sliding guide (802), and the Y-axis The load-bearing sliding guide pad (803) is connected to the X-axis system bracket (701), and drives the X-axis system bracket (701) to move through the Y-axis load-bearing sliding guide pad (803), so as to drive the X-axis axial movement system (7) to move as a whole; the Y-axis servo motor (804) is installed on the Y-axis servo motor fixing bracket (805), and the Y-axis servo motor (804) is installed on the base (1) through the Y-axis servo motor fixing bracket (805); the Y-axis system coupling (806) is used to connect the Y-axis servo motor (804) and the Y-axis ball screw (809) and transmit motion and power through the Y-axis system coupling (806); the Y-axis bearing (808) is used to support the Y-axis ball screw (809) and ensure the rotation of the Y-axis ball screw (809); the Y-axis bearing support (807) is used to install and fix the Y-axis bearing (808).

5. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 4, characterized in that: The Z-axis axial movement system (9) comprises a Z-axis system base plate (901), a Z-axis linear sliding guide rail (902), a Z-axis servo motor (903), a Z-axis servo motor fixing bracket (904), a Z-axis system coupling (905), a Z-axis bearing support (906), a Z-axis bearing (907), and a Z-axis ball screw (908); the Z-axis system base plate (901) is installed on a housing of the servo system (10); the lower part of the housing of the servo system (10) is connected to a slider on an X-axis linear sliding guide rail (702); the X-direction movement of the slider on the X-axis linear sliding guide rail (702) drives the X-direction movement of the Z-axis axial movement system (9); the Z-axis linear sliding guide rail ( The Z-axis servo motor (903) is mounted on the Z-axis system base plate (901), the Z-axis servo motor (903) is mounted on the Z-axis servo motor fixing bracket (904), the Z-axis servo motor (903) is mounted on the Z-axis system base plate (901) through the Z-axis servo motor fixing bracket (904), the Z-axis system coupling (905) is used to connect the Z-axis servo motor (903) and the Z-axis ball screw (908) and transmit motion and power through the Z-axis system coupling (905), the Z-axis bearing (907) is used to support the Z-axis ball screw (908) and ensure the rotation of the Z-axis ball screw (908), and the Z-axis bearing support (906) is used to install and fix the Z-axis bearing (907).

6. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 5, characterized in that: The Z-axis machining spindle system (11) comprises a Z-axis machining spindle system support (1101), a spindle motor (1102), a spindle motor fixing support (1103), a spindle motor pulley (1104), a transmission belt (1105), a spindle pulley (1106), and a machining spindle (1107); the spindle motor (1102) is mounted on the spindle motor fixing support (1103), the spindle motor pulley (1104) is mounted on the spindle of the spindle motor (1102), the spindle pulley (1106) is mounted on the machining spindle (1107), and the machining spindle (1107) is mounted on the machining spindle system support 1101; the spindle motor pulley (1104) and the spindle pulley (1106) are connected by the transmission belt (1105) to transmit the power and motion of the spindle motor (1102) to the machining spindle (1107) to realize the motion of the machining spindle (1107).

7. A nuclear reactor moderator pool embedded parts processing equipment as claimed in claim 6, characterized in that: The displacement sensor fixing device (13) comprises a device fixing bracket (1301), a displacement sensor fixing sleeve (1302), a displacement sensor movable push rod (1303), a displacement sensor fixing device shell (1304), a spring force adjustment sleeve (1305), a spring (1306), a movable push rod push block (1307), a movable push rod push block fixing screw (1308), a movable push rod pull block (1309), and a connecting pin (1310); the displacement sensor fixing sleeve (1302) is fixed to the side of the base (1) and is used to install the displacement sensor (4); the device fixing bracket (1301) is fixed to the side of the base (1) by bolts and is used to fix the displacement sensor fixing device shell (1304); the spring force adjustment sleeve (1305) is fixed to the side of the base (1) ... by bolts; the displacement sensor fixing device (1301) is fixed to the side of the base (1) by bolts; the displacement sensor fixing device (1301) is fixed to the side of the base (1) by bolts; the displacement sensor fixing device (1304) is fixed to the side of the base (1) by bolts; the displacement sensor fixing device (1304) is fixed to the side of the base (1) by bolts; the displacement sensor fixing device (1304) is fixed to the side of the base (1) by bolts; the displacement sensor ) is processed with an internal thread, and the spring force of the spring (1306) is adjusted by screwing the internal thread of the spring force adjustment sleeve (1305) and the internal thread on the outer shell (1304) of the displacement sensor fixing device. The movable push rod push block (1307) is fixed to the movable push rod (1303) of the displacement sensor through the movable push rod push block fixing screw (1308), so that the spring force of the spring (1306) causes the movable push rod (1303) of the displacement sensor to move and press against the displacement sensor (4), thereby fixing the displacement sensor (4); the movable push rod pull block (1309) is connected to the movable push rod (1303) of the displacement sensor through the connecting pin (1310), and the movable push rod pull block (1309) is pulled to cause the movable push rod (1303) of the displacement sensor to move rightward, thereby releasing the displacement sensor (4).

8. A method for processing equipment for processing embedded parts of a nuclear reactor moderator pool, characterized in that: The following steps are involved: Step 1: Install the equipment above the embedded parts of the reactor moderator pool, adjust the adjustment nuts of the four base support feet to adjust the horizontal accuracy of the equipment, and use the X-axis axial level and Y-axis axial level on the equipment base to make the overall horizontal accuracy of the equipment meet the requirements; Step 2: Install the fixed vacuum suction cup to make it adsorb on the embedded part of the reactor moderator water pool, and pass compressed air into the fixed vacuum suction cup to fix the equipment base on the embedded part of the reactor moderator water pool. Pay attention to observe the levelness values ​​of the X-axis axial level meter and the Y-axis axial level meter. If the levelness value is out of tolerance, repeat step 1 and then repeat step 2; Step 3: Adjust the displacement sensor installed on the side of the base so that the displacement sensor contact is pressed on the embedded part of the reactor moderator pool; Step 4: Install the machining tool on the Z-axis machining spindle, start the equipment and check the operation of the equipment; set the servo system X-axis axial movement value, Y-axis axial movement value, and Z-axis axial movement value to 0; set the displacement sensor indication value to 0; Step 5: Find the highest point of the reactor moderator pool embedded parts that need to be machined, start the Z-axis machining spindle to rotate the tool and control the servo system to lower the Z-axis to start machining; Step 6: Monitor the displacement sensor indication. When the displacement sensor indication is greater than 0, control the servo system to raise the Z axis until the displacement sensor indication is equal to 0. Step 7: Control the servo system to move the X-axis and Y-axis to process the entire plane of the reactor moderator pool embedded parts. During the processing, when the displacement sensor indicates a value greater than 0, repeat step 6 and then continue to perform step 7 until the entire plane processing is completed, so that the plane accuracy and horizontal accuracy of the reactor moderator pool embedded parts meet the requirements; Step 8: Control the servo system to raise the Z axis, cut off the power supply and fix the vacuum suction cup air source to disassemble the processing equipment.

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