A control assembly assembly apparatus and method

Abstract

This invention belongs to the field of control component assembly technology, specifically relating to a control component assembly device and method. It includes an assembly platform, control rod support plates, a support plate connecting shaft, a drilling guide plate, a connecting handle positioning fixture, and a drilling device. Multiple control rod support plates and one drilling guide plate are mounted on the assembly platform. The support plate connecting shaft passes through the control rod support plates and the drilling guide plate. The connecting handle positioning fixture is installed on the outside of the drilling guide plate on the assembly platform, and the drilling device is arranged on the side of the assembly platform. The beneficial effect of this invention is that the square connecting shaft connects the control rod rotation support plates, avoiding asynchronous rotation caused by slippage of multiple control rod support plates, which could lead to control rod torsion.

Description

Technical Field

[0001] This invention belongs to the field of control component assembly technology, specifically relating to a control component assembly device and assembly method. Background Technology

[0002] The assembly of control components involves processes such as assembly, drilling, and welding. Existing control component assembly equipment includes an assembly platform, a control rod support plate, a drilling and positioning fixture, a connecting handle positioning fixture, and a drilling device.

[0003] Existing control component assembly methods have the following shortcomings: 1. The assembly process can easily cause control rods to twist or seize; 2. The drilling and positioning of control rods after assembly is inaccurate; 3. The tooling needs to be frequently changed and adjusted when drilling control rods; 4. The positioning of the connecting handle is inaccurate, affecting the surface quality of the connecting handle, etc. These factors can significantly impact the product quality of control components, resulting in defective products. Summary of the Invention

[0004] The purpose of this invention is to provide a control component assembly device and assembly method, which can solve problems such as control rod twisting, inaccurate drilling positioning, inaccurate connecting handle positioning, and cumbersome tooling adjustment and replacement in the existing control component assembly process.

[0005] The technical solution of the present invention is as follows: a control component assembly device, comprising an assembly platform, a control rod support plate, a support plate connecting shaft, a drilling guide plate, a connecting handle positioning fixture, and a drilling device, wherein multiple control rod support plates and a drilling guide plate are installed on the assembly platform, the support plate connecting shaft passes through the control rod support plate and the drilling guide plate, the connecting handle positioning fixture is installed on the outside of the drilling guide plate on the assembly platform, and the drilling device is arranged on the side of the assembly platform.

[0006] The control rod support plate includes a first rotatable support plate, a first support frame, and a first rotating wheel. The bottom of the first support frame is a mounting base, which is a plate-shaped structure with protruding parts at both ends and is snapped onto the assembly platform. The upper middle part of the mounting base has two support plates, and a first rotating wheel is installed at the top and bottom of each of the two support plates. There are a total of four first rotating wheels. The disc-shaped first rotatable support plate is snapped between the four first rotating wheels. The middle of the first rotatable support plate has a square hole structure, through which the support plate connecting shaft passes. Multiple round holes are evenly distributed on the first rotatable support plate.

[0007] The perforation guide plate includes a second rotatable support plate, a second support frame, a second rotating wheel, and a perforation positioning fixture. The bottom of the second support frame is a mounting base, which is a plate-shaped structure with protruding parts at both ends and is clamped onto the assembly platform. The upper middle part of the mounting base has two support plates, and a second rotating wheel is installed at the top and bottom of each of the two support plates. There are a total of four second rotating wheels. The disc-shaped second rotatable support plate is clamped between the four second rotating wheels. The middle of the first rotatable support plate has a square hole structure, through which the support plate connecting shaft passes. The second rotatable support plate has multiple round holes evenly distributed on it, and a perforation positioning fixture is installed on each round hole of the second rotatable support plate.

[0008] The first rotatable support plate of the control rod support plate is made of polyethylene material.

[0009] The second rotatable support plate of the perforated guide plate is made of stainless steel.

[0010] The support plate connecting shaft includes a square shaft locking sleeve and a square connecting shaft. The square shaft locking sleeve is fitted onto the square connecting shaft to assist the control rod in rotating the support plate.

[0011] The connecting handle positioning fixture includes a three-jaw chuck, a three-jaw chuck base, a three-jaw chuck support, a positioning fixture, and a connecting handle protective sleeve, realizing the positioning and support of the connecting handle; wherein, the positioning fixture is a plate-shaped structure with outward protrusions at both ends, which can be clamped onto the assembly platform, the upper middle part of the positioning fixture is connected to the three-jaw chuck support, the three-jaw chuck base is connected to the three-jaw chuck support, and the three-jaw chuck is connected to the three-jaw chuck base.

[0012] A method for assembling a control component includes the following steps:

[0013] Step 1: The control rod support plate, support plate connecting shaft, and drilling guide plate are positioned on the assembly platform, and the drilling positioning fixture is positioned on the drilling guide plate;

[0014] Step 2: Position all control rods on the first rotatable support plate of the control rod support plate;

[0015] Step 3: The connecting handle positioning fixture is positioned on the assembly platform;

[0016] Step 4: Position the connecting handle on the connecting handle positioning fixture;

[0017] Step 5: Rotate the control rod to assemble it together with the connecting handle finger via threaded connection;

[0018] Step 6: The control rod support plate and the drilling guide plate are rotated synchronously through the support plate connecting shaft. The connecting handle positioning fixture rotates with the drilling guide plate, thereby realizing the assembly of all control rods and connecting handles.

[0019] Step 7: Fix the control rod support plate, the drilling guide plate, and the connecting handle positioning fixture. The drilling positioning fixture helps to determine the drilling position, and the drilling device is used to drill holes in the control rod.

[0020] Step 8: After completing the drilling of one batch of control rods, release the control rod support plate, drilling guide plate, and connecting handle positioning fixture from their fixed positions.

[0021] Step 9: Rotate the control rod support plate, the drilling guide plate, and the connecting handle positioning fixture. Repeat steps 7 to 9 until all control rods are drilled.

[0022] Step 10: Perform pin spot welding on the control components.

[0023] The beneficial effects of this invention are as follows: 1) The square connecting shaft connects to the control rod rotating support plate to avoid asynchronous rotation caused by slippage of the multi-layer control rod support plate, which could lead to control rod twisting and other consequences; 2) The dedicated drilling positioning fixture can achieve positioning and guidance of all drilling positions at one time, avoiding repeated adjustment of the fixture, simplifying the assembly of the control components, and avoiding inaccurate drilling positioning caused by manual adjustment; 3) The dedicated connecting handle positioning fixture ensures the alignment of the connecting handle with the rotating support plate and other fixtures, avoiding control rod seizing and other consequences caused by poor alignment; 4) The dedicated drilling clamping handle avoids scratching of the control rod by the drilling device during drilling, ensuring product quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a control component assembly device provided by the present invention;

[0025] Figure 2 Schematic diagram of the control rod support plate;

[0026] Figure 3 Schematic diagram of the punch guide plate;

[0027] Figure 4 This is a schematic diagram showing the drilling direction;

[0028] Figure 5 Schematic diagram of the drilling positioning fixture;

[0029] Figure 6 A schematic diagram of an existing drilling and positioning fixture;

[0030] Figure 7 Schematic diagram of the positioning fixture for the connecting handle;

[0031] Figure 8 This is a schematic diagram of the connecting shaft for the support disc.

[0032] In the diagram: 1 Assembly platform, 2 Control rod support plate, 3 Support plate connecting shaft, 4 Drilling guide plate, 5 Connecting handle positioning fixture, 6 Drilling device, 7 Electric cylinder, 8 First rotatable support plate, 9 First support frame, 10 First rotating wheel, 11 Drilling positioning fixture, 12 Three-jaw chuck base, 13 Three-jaw chuck support, 14 Positioning fixture, 15 Three-jaw chuck, 16 Connecting handle protective sleeve, 17 Square shaft locking sleeve, 18 Square connecting shaft, 19 Second support frame, 20 Second rotating wheel, 21 Second rotatable support plate. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The present invention provides a control component assembly device, comprising: an assembly platform 1, a control rod support plate 2, a support plate connecting shaft 3, a drilling guide plate 4, a connecting handle positioning fixture 5, and a drilling device 6. The assembly platform 1 is equipped with multiple control rod support plates 2 and one drilling guide plate 4. The support plate connecting shaft 3 passes through the control rod support plates 2 and the drilling guide plate 4. The connecting handle positioning fixture 5 is installed on the outside of the drilling guide plate 4 on the assembly platform 1. The drilling device 6 is arranged on the side of the assembly platform 1.

[0035] Assembly platform 1 supports other tooling during the assembly of control components, and after the assembly of control components is completed, it works with electric cylinder 7 to perform the function of tilting and lifting the components.

[0036] like Figure 2 As shown, each control rod support disk 2 includes a first rotatable support disk 8, a first support frame 9, and a first rotating wheel 10. It supports the control rod during the control component assembly process and assists in drilling the control rod by rotating the entire assembly. The bottom of the first support frame 9 is a mounting base, which is a plate-like structure with protruding ends for mounting onto the assembly platform 1. The upper middle part of the mounting base has two support plates, with a first rotating wheel 10 mounted at the top and bottom of each support plate. There are four first rotating wheels 10 in total. The disc-shaped first rotatable support disk 8 is mounted between the four first rotating wheels 10. The first rotatable support disk 8 has a square hole in the middle, through which the support disk connecting shaft 3 can pass. Multiple circular holes are evenly distributed on the first rotatable support disk 8. In this embodiment of the invention, the first rotatable support disk 8 has two rings of circular holes: eight in the inner ring and sixteen in the outer ring, for a total of 24.

[0037] like Figure 3As shown, the drilling guide plate 4 includes a second rotatable support plate 21, a second support frame 19, a second rotating wheel 20, and a drilling positioning fixture 11, which assists in guiding and positioning the drilling device during the control rod drilling process. The second support frame 19 has a mounting base at its bottom, which is a plate-shaped structure with protruding ends for mounting on the assembly platform 1. The upper middle part of the mounting base has two support plates, with a second rotating wheel 20 mounted at the top and bottom of each support plate. There are four second rotating wheels 20 in total. The disc-shaped second rotatable support plate 21 is mounted between the four second rotating wheels 20. The first rotatable support plate 8 has a square hole in its center, through which the support plate connecting shaft 3 can pass. The second rotatable support plate 21 has multiple evenly distributed circular holes. In this embodiment, the second rotatable support plate 21 has two rings of circular holes: eight in the inner ring and sixteen in the outer ring, totaling 24. Each circular hole on the second rotatable support plate 21 is equipped with a drilling positioning fixture 11, such as... Figure 5 As shown, the bottom surface of the main structure of the drilling positioning fixture 11 is designed with an inverted V-shaped groove to assist in positioning the relevant rods; the main structure is equipped with a special guide hole for the drill bit to assist in determining the drilling point of the relevant rods. The 24 drilling positioning fixtures 11 have eight different orientations to meet the drilling requirements of the inner and outer ring control rods.

[0038] Among them, the first rotatable support plate 8 of the control rod support plate 2 is made of polyethylene material: 1) to avoid adverse effects on the surface quality of the control rod when supporting it; 2) the lighter weight of polyethylene material also means a smaller torsional force during rotation, reducing the burden on the operator when rotating the component; 3) the lighter weight of polyethylene material also means a smaller inertia during rotation, which to some extent reduces the torsion of the control rod and reduces the degree of torsion of the control rod.

[0039] The second rotatable support plate 21 of the punching guide plate 4 is made of stainless steel: 1) The punching guide plate needs to be slotted to realize the positioning of the punching positioning fixture 11. Using metal materials can ensure the accuracy of the fixture positioning to a greater extent; 2) When the overall rotation control assembly is rotated, the control rod support plate 2 rotates with the support plate connecting shaft 3, while the punching guide plate 4 drives the connecting handle to rotate. This requires the punching guide plate 4 to have stronger mechanical properties than the control rod support plate 2.

[0040] like Figure 8 As shown, the support plate connecting shaft 3 includes a square shaft locking sleeve 17 and a square connecting shaft 18. The square shaft locking sleeve 17 is fitted onto the square connecting shaft 18 to assist the rotation of the control rod support plate. The support plate connecting shaft 3 adopts a square shaft structure. The square shaft locking sleeve 17 connects the rotatable support plate 8 and the square connecting shaft 18 simultaneously, avoiding asynchronous rotation caused by slippage of the multi-layer control rod support plates, which could lead to control rod torsion and other consequences.

[0041] The operator manually rotates the connecting shaft 3, which in turn drives the first rotatable support plate 8 to rotate.

[0042] like Figure 7 As shown, the connecting handle positioning fixture 5 includes a three-jaw chuck 15, a three-jaw chuck base 12, a three-jaw chuck support 13, a positioning fixture 14, and a connecting handle protective sleeve 16, realizing the positioning and support of the connecting handle. The positioning fixture 14 is a plate-shaped structure with protruding portions at both ends, allowing it to be clamped onto the assembly platform 1. The three-jaw chuck support 13 is connected to the upper middle part of the positioning fixture 14. The three-jaw chuck base 12 is connected to the three-jaw chuck support 13, and the three-jaw chuck 15 is connected to the three-jaw chuck base 12 and can rotate with it. The three jaws of the three-jaw chuck 15 can move synchronously, ensuring high alignment accuracy of the connecting handle positioning. When the three-jaw chuck 15 needs to be fixed, the positioning pin of the three-jaw chuck support 13 secures the three-jaw chuck base 12; when the three-jaw chuck 15 needs to rotate, the positioning pin of the three-jaw chuck support 13 releases the fixation of the three-jaw chuck base 12. The connecting handle protective sleeve 16 is made of polyethylene material to prevent the three-jaw chuck 15 from damaging the surface quality of the connecting handle. The connecting handle protective sleeve 16 is not connected to the three-jaw chuck 15, but only has a clearance fit. The three support rods 5 with small balls are handwheels of the connecting handle positioning fixture. The operator can rotate the connecting handle by turning the handwheels.

[0043] The drilling device 6 enables drilling of the control rod.

[0044] A rotating assembly is used to drill holes in a set of 24 control rods of the control component. For example... Figure 4 As shown, the 16 control rods on the outer ring can be divided into 4 batches of 4 rods each; the 8 control rods on the inner ring can be divided into 4 batches of 2 rods each. After the drilling device completes drilling the 4 control rods on the outer ring, the entire control assembly is rotated by a certain angle, causing the guide hole of the inner ring drilling positioning fixture to rotate to the Z-axis direction. The drilling device then completes drilling the 2 control rods on the inner ring. This process is repeated 4 times to complete the drilling of the control assembly.

[0045] The drill bit of the drilling device 6 is positioned and drilled through the guide hole of the drilling positioning fixture 11, ensuring the consistency of the axial position (with the end of the control rod) of the 24 holes. Simultaneously, the V-shaped positioning design of the drilling positioning fixture ensures that the drilling position is at the highest point of the control rod's cylindrical surface, i.e., accurate circumferential positioning of the hole. Furthermore, the slotted V-shaped positioning surface of the drilling positioning fixture prevents metal chips from accumulating at the drilling position during the drilling process, thus avoiding issues such as metal chips entanglement of the drill bit and impaired heat dissipation.

[0046] Figure 6This is the original drilling and positioning fixture. Due to its large size, the original fixture could not position all control rods at once. It required disassembly and reassembly before drilling could continue, making the process cumbersome. Furthermore, repeated disassembly resulted in low consistency in the axial position of the 24 holes. Additionally, because the positioning surface of the original fixture was curved, it could not guarantee that the drilling position was at the highest point of the control rod, leading to inaccurate positioning. Inaccurate drilling and positioning affects the quality of the control components, potentially causing them to fail to meet technical requirements; it also hinders secondary drilling during rework of the control components.

[0047] This invention provides a method for assembling a control component, comprising the following steps:

[0048] Step 1: The control rod support plate 2, the support plate connecting shaft 3, and the drilling guide plate 4 are positioned on the assembly platform 1, and the drilling positioning fixture 11 is positioned on the drilling guide plate 4;

[0049] Step 2: Position all control rods on the first rotatable support plate 8 of the control rod support plate 2;

[0050] Step 3: The connecting handle positioning fixture 5 is positioned on the assembly platform 1;

[0051] Step 4: Position the connecting handle on the connecting handle positioning fixture 5;

[0052] Step 5: Rotate the control rod to assemble it together with the connecting handle finger via threaded connection;

[0053] Step 6: The control rod support plate 2 and the drilling guide plate 4 are rotated synchronously through the support plate connecting shaft 3. The connecting handle positioning fixture 5 rotates with the drilling guide plate 4, thereby realizing the assembly of all control rods and connecting handles.

[0054] Step 7: Fix the control rod support plate 2, the drilling guide plate 4, the connecting handle positioning fixture 5, and the drilling positioning fixture 11 to help determine the drilling position. Use the drilling device 6 to drill holes in the control rod.

[0055] Step 8: After completing the drilling of one batch of control rods, release the fixed state of the control rod support plate 2, the drilling guide plate 4, and the connecting handle positioning fixture 5.

[0056] Step 9: Rotate the control rod support plate 2, the drilling guide plate 4, and the connecting handle positioning fixture 5, and repeat steps 7) to 9) until all control rods are drilled.

[0057] Step 10: Perform pin spot welding on the control components.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control component assembly device, characterized in that: The assembly platform includes a control rod support plate, a support plate connecting shaft, a drilling guide plate, a connecting handle positioning fixture, and a drilling device. The assembly platform has multiple control rod support plates and one drilling guide plate. The support plate connecting shaft passes through the control rod support plates and the drilling guide plate. The connecting handle positioning fixture is installed on the outside of the drilling guide plate on the assembly platform, and the drilling device is arranged on the side of the assembly platform. The drilling guide plate includes a second rotatable support plate, a second support frame, a second rotating wheel, and the drilling positioning fixture. The bottom of the second support frame... The first rotatable support plate is a plate-shaped structure with protruding ends. It is clamped onto the assembly platform. The upper middle part of the support plate has two support plates. A second rotating wheel is installed at the top and bottom of each of the two support plates. There are a total of four second rotating wheels. A disc-shaped second rotatable support plate is clamped between the four second rotating wheels. The first rotatable support plate has a square hole in the middle. The support plate connecting shaft passes through the square hole. The second rotatable support plate has multiple round holes evenly distributed on it. A drilling and positioning fixture is installed on each round hole of the second rotatable support plate.

2. The control component assembly device as described in claim 1, characterized in that: The control rod support plate includes a first rotatable support plate, a first support frame, and a first rotating wheel. The bottom of the first support frame is a mounting base, which is a plate-shaped structure with protruding parts at both ends and is snapped onto the assembly platform. The upper middle part of the mounting base has two support plates, and a first rotating wheel is installed at the top and bottom of each of the two support plates. There are a total of four first rotating wheels. The disc-shaped first rotatable support plate is snapped between the four first rotating wheels. The middle of the first rotatable support plate has a square hole structure, through which the support plate connecting shaft passes. Multiple round holes are evenly distributed on the first rotatable support plate.

3. The control component assembly device as described in claim 2, characterized in that: The first rotatable support plate of the control rod support plate is made of polyethylene material.

4. The control component assembly device as described in claim 1, characterized in that: The second rotatable support plate of the perforated guide plate is made of stainless steel.

5. The control component assembly apparatus as described in claim 1, characterized in that: The support plate connecting shaft includes a square shaft locking sleeve and a square connecting shaft. The square shaft locking sleeve is fitted onto the square connecting shaft to assist the control rod in rotating the support plate.

6. The control component assembly apparatus as described in claim 1, characterized in that: The connecting handle positioning fixture includes a three-jaw chuck, a three-jaw chuck base, a three-jaw chuck support, a positioning fixture, and a connecting handle protective sleeve, realizing the positioning and support of the connecting handle; wherein, the positioning fixture is a plate-shaped structure with outward protrusions at both ends, which can be clamped onto the assembly platform, the upper middle part of the positioning fixture is connected to the three-jaw chuck support, the three-jaw chuck base is connected to the three-jaw chuck support, and the three-jaw chuck is connected to the three-jaw chuck base.

7. A method for assembling a control component using the device of claim 2, comprising the following steps: Step 1: The control rod support plate, support plate connecting shaft, and drilling guide plate are positioned on the assembly platform, and the drilling positioning fixture is positioned on the drilling guide plate; Step 2: Position all control rods on the first rotatable support plate of the control rod support plate; Step 3: The connecting handle positioning fixture is positioned on the assembly platform; Step 4: Position the connecting handle on the connecting handle positioning fixture; Step 5: Rotate the control rod to assemble it together with the connecting handle finger via threaded connection; Step 6: The control rod support plate and the drilling guide plate are rotated synchronously through the support plate connecting shaft. The connecting handle positioning fixture rotates with the drilling guide plate, thereby realizing the assembly of all control rods and connecting handles. Step 7: Fix the control rod support plate, the drilling guide plate, and the connecting handle positioning fixture. The drilling positioning fixture helps to determine the drilling position, and the drilling device is used to drill holes in the control rod. Step 8: After completing the drilling of one batch of control rods, release the control rod support plate, drilling guide plate, and connecting handle positioning fixture from their fixed positions. Step 9: Rotate the control rod support plate, the drilling guide plate, and the connecting handle positioning fixture. Repeat steps 7 to 9 until all control rods are drilled. Step 10: Perform pin spot welding on the control components.

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