An assembling and positioning device and method suitable for welding different types of I-beams

Abstract

The application discloses an assembling and positioning device and method suitable for welding of different types of I-beams, which comprises a supporting part, a web clamping part and a guide plate clamping part, wherein the web clamping part clamps the web on the supporting part, the supporting part positions and adjusts the horizontal height of the web through a mechanical lifting mechanism to reach a predetermined technical requirement, the guide plate clamping part clamps the left guide plate and the right guide plate on the side of the supporting part in sequence, the relative angle between the left guide plate, the right guide plate and the web is adjusted to be perpendicular through a forward and reverse thread screw mechanism, the gap between the left guide plate, the right guide plate and the web is adjusted to reach a predetermined technical requirement, and the assembling and positioning before the welding of the I-beam is completed. The application solves the problem of precise adjustment of the height of the web, the assembling gap and the angle between the guide plate and the web during the assembling of the I-beam, improves the assembling precision, improves the quality qualification rate, improves the operation efficiency, and is suitable for the precise assembling of different types of I-beams.

Description

Technical Field

[0001] This invention relates to the manufacture of marine diesel engine components, specifically to an assembly and positioning device and method applicable to the welding of different types of I-beams, belonging to the field of diesel engine manufacturing technology. Background Technology

[0002] I-beams, widely used in industry, are an indispensable component of marine engine frames. An I-beam consists of two vertical guide plates and a horizontal web plate. The left and right guide plates are welded to the left and right ends of the web plate, respectively, and are perpendicular to the web plate. Before welding, the two guide plates and the web plate must be assembled according to predetermined precision requirements. The relative position of the guide plates and the web plate, as well as the assembly gap and angle between them, are key technical requirements that need to be controlled. As part of the marine engine frame, the assembly precision of the I-beam directly affects the subsequent welding precision. Furthermore, after being assembled onto the frame, the I-beam directly affects the assembly precision of the frame with other components.

[0003] Currently, in the assembly of I-beams, a universal jig method is used. The web plate is first laid flat on the jig, and then the height of the web plate is adjusted by adding shims between the jig and the web plate. However, this method not only requires repeated use of lifting equipment to move the web plate and multiple adjustments of the number of shims, but also cannot achieve fine adjustment of the web plate height because the shims have a fixed height. In addition, during the hoisting of the guide plate to approach the web plate, due to the lack of a fixing device, the guide plate can only be allowed to naturally and uncontrollably approach the web plate, making it difficult to ensure the assembly gap and assembly angle between the guide plate and the web plate, and making it impossible to ensure the perpendicularity between the guide plate and the web plate. Furthermore, I-beams have different specifications and models because the length, thickness, and width of the web plate and guide plate are different, but there is currently a lack of a universal assembly device applicable to various models of I-beams.

[0004] In summary, due to the different lengths and weights of the plates and the cutting precision issues during processing, the existing I-beam assembly methods have various technical challenges, such as difficulty in timely adjustment of the web height, difficulty in controlling the assembly gap between the guide plate and the web, and inability to guarantee the perpendicularity between the guide plate and the web. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the difficulties existing in the existing assembly methods of I-beams before welding, and to provide an assembly positioning device and method applicable to the welding of different models of I-beams. This effectively solves the problems that the height of the web plate cannot be precisely adjusted and the assembly gap and angle between the guide plate and the web plate cannot be adjusted during the assembly process of the I-beam, thereby achieving precise control of the assembly accuracy of the I-beam, meeting the assembly requirements of different models of I-beams, and improving work efficiency.

[0006] Based on the above objectives, the technical solution provided by the present invention is as follows: An assembly positioning device suitable for welding I-beams of different models, wherein the I-beam includes a web and a left guide plate and a right guide plate respectively vertically disposed at the left and right ends of the web; characterized in that: the assembly positioning device includes a support component, a web clamping component, and a guide plate clamping component; the support component is located on the ground and is used to support the web and adjust the height of the web; the web clamping component is connected to the upper part of the support component and is used to clamp the web; the guide plate clamping component is connected to one side of the support component and is used to clamp the left and right guide plates, while adjusting the distance and angle between the left and right guide plates and the web; The web clamping component secures the web to the supporting component. The supporting component positions and adjusts the horizontal height of the web through a mechanical lifting mechanism to meet predetermined technical requirements. The guide plate clamping component sequentially clamps the left and right guide plates to the side of the supporting component. The relative angles between the left and right guide plates and the web are adjusted to achieve perpendicularity through a positive and negative thread mechanism. The gaps between the left and right guide plates and the web are also adjusted to meet predetermined technical requirements, thereby completing the assembly and positioning of the I-beam before welding.

[0007] Furthermore, the supporting components include a web bottom support, a web top support, a web positioning block, a driving block, a driving screw, a first support arm, a second support arm, a third support arm, a fourth support arm, two sliding circular guide posts, and two sliding bolts; The bottom web support is located at the bottom of the support component. It is a groove-shaped component with the groove opening facing upwards, and the rear is a closed blind end. It has longitudinal sliding groove holes on both sides. The top web support is located at the top of the support component and directly supports the web. It is a groove-shaped component with the groove opening facing downwards and longitudinal guide groove holes on both sides. The web plate positioning block is fixedly connected to the rear end of the web plate top support and abuts against the edge of the web plate to position the horizontal position of the web plate. The top surface of the web plate positioning block is provided with a vertical threaded hole connected to the web plate clamping component, and the side surface is provided with a horizontal threaded through hole connected to the guide plate clamping component. The drive block is clamped in the groove at the front of the web bottom support, and the drive screw passes through the round hole on the blind end of the rear of the web bottom support, with its front end connected to the drive block by a thread. The first, second, third, and fourth support arms are all straight strip plates. The first and second support arms, and the third and fourth support arms, are symmetrically hinged at their midpoints and can rotate relative to each other around the midpoints. The rear ends of the first and fourth support arms are respectively hinged to the two sides of the rear end of the web bottom support, and the front ends are respectively connected to the web top support through sliding circular guide posts passing through the guide slot holes and can slide back and forth along the guide slot holes. The rear ends of the second and third support arms are respectively hinged to the two sides of the rear end of the web top support, and the front ends are respectively connected to the two ends of the drive block through sliding bolts passing through the sliding slot holes and can slide back and forth along the sliding slot holes. Rotating the drive screw drives the drive block, which in turn drives the front ends of the second and third support arms to move back and forth along the sliding groove holes of the web bottom support. This changes the intersection angle between the second and first support arms and between the third and fourth support arms, thereby adjusting the horizontal height of the web to meet the predetermined technical requirements by raising and lowering the web top support.

[0008] Furthermore, the rear end of the drive screw is provided with a force-applying tube for applying rotational torque.

[0009] Furthermore, the drive block has a threaded hole in the middle for connecting the drive screw, and threaded holes at both ends for connecting the sliding bolt.

[0010] Furthermore, the web clamping component includes a web clamping plate, which is bolted to the vertical threaded hole of the web positioning block and pressed onto the web, thereby clamping the web between the web clamping plate and the web top support of the supporting component.

[0011] Furthermore, the guide plate clamping component includes a guide plate positioning block, a guide plate clamping plate, and two double-ended positive and negative threaded bolts; The guide plate positioning block has a horizontal threaded through hole with a thread direction opposite to that of the horizontal threaded through hole of the web plate positioning block. The two ends of the two double-ended forward and reverse threaded bolts have threads with opposite rotation directions and are screwed into the horizontal threaded through holes of the web plate positioning block and the guide plate positioning block respectively, connecting the guide plate positioning block to the side of the web plate positioning block. The guide plate clamp is bolted to the water guide plate positioning block and clamps the left or right guide plate between the guide plate clamp and the guide plate positioning block. Rotate the two double-ended screws in opposite directions to adjust the angle of the left or right guide plate, ensuring that the left or right guide plate maintains a perpendicular assembly angle with the web plate. Rotate the two double-ended screws in the same direction to drive the guide plate positioning block and the web plate positioning block to achieve relative movement, thereby adjusting the assembly gap between the left or right guide plate and the web plate to meet the predetermined technical requirements.

[0012] Furthermore, bolts of different lengths are used to meet the clamping requirements of web plates, left guide plates, and right guide plates of different thicknesses.

[0013] Another technical solution of the present invention is: An assembly positioning method for welding I-beams of different models, using the aforementioned assembly positioning device, includes the following specific steps: Step 1: Clamping and positioning the web plate — Step 1), place the web plate on the web plate top support of the support member at a suitable position near the right side, and make the edge of the web plate abut against the web plate positioning block; Step 1, 2), clamp the web plate between the web plate clamp and the web plate top support using bolts; Step 1 (3) Rotate the drive screw to drive the drive block to move back and forth, and then drive the second support arm and the third support arm to change their intersection angle with the first support arm and the fourth support arm respectively. In this way, by adjusting the height of the web plate top support, the horizontal height of the web plate is adjusted to meet the predetermined technical requirements. Step 2: Clamping and positioning the right guide plate — Step 2, 1), hoist the right guide plate to the right side of the web and bring it close to the web; Step 2), clamp the right guide plate between the guide plate clamp and the guide plate positioning block using bolts; Step 2 (3) Rotate the two double-headed screws in the opposite direction to adjust the angle of the right guide plate so that the relative angle between the right guide plate and the web plate is perpendicular. Rotate the two double-headed screws in the same direction to adjust the distance between the right guide plate and the web plate through the guide plate positioning block and the guide plate clamping plate so that the assembly gap between the right guide plate and the web plate meets the predetermined technical requirements. Step 4) Fix the relative position between the right guide plate and the web plate by spot welding to complete the assembly and positioning of the right guide plate and the web plate. Step 3: Clamping and positioning the left guide plate — Step 3, 1) Move the assembly positioning device to a suitable position near the left side of the web plate, place the web plate on the web plate top support and make the edge of the web plate abut against the web plate positioning block, and clamp the web plate between the web plate clamp and the web plate top support with bolts. Step 3, 2), following the operation method described in Step 1, 3), adjust the web plate to a horizontal position by adjusting the height of the web plate support; Step 3), remove the guide plate clamping component from the right side of the web plate positioning block and connect it to the left side of the web plate positioning block in a manner symmetrical to the original structure; Step 3, 4): Hoist the left guide plate to the left side of the web and close to the web, and clamp the left guide plate between the guide plate clamp and the guide plate positioning block using bolts; Step 3 (5) Following the operation method described in Step 2 (3), adjust the angle position of the left guide plate to ensure that the relative angle between the left guide plate and the web plate is perpendicular, and adjust the distance between the left guide plate and the web plate to ensure that the assembly gap between the left guide plate and the web plate meets the predetermined technical requirements. Step 3 (6) Use spot welding to fix the relative position between the left guide plate and the web plate, thus completing the assembly and positioning of the left guide plate and the web plate, thereby completing the precision assembly and positioning before welding the I-beam.

[0014] Compared with traditional I-beam pre-welding assembly technology, the present invention achieves the following technical effects: 1) The support component uses a drive screw and a drive block to drive the drive block in a threaded transmission manner, which enables the drive block to move linearly back and forth, thereby driving the support arm to change the height of the web plate support and realizing fine adjustment of the web plate height; 2) The web plate positioning block and the guide plate positioning block are connected by two double-ended forward and reverse threaded bolts. Rotating the two double-ended forward and reverse threaded bolts in the same direction can adjust the assembly gap between the web plate and the guide plate; rotating the two double-ended forward and reverse threaded bolts in opposite directions can fine adjust the position angle of the guide plate to ensure that the assembly angle between the guide plate and the web plate is always perpendicular to each other. 3) By using bolts of different lengths, this invention can be applied to the assembly of I-beams with different plate thicknesses and heights.

[0015] In summary, this invention solves the problems of precise adjustment of the web height and adjustment of the assembly gap and angle between the guide plate and the web plate during the assembly of I-beams, effectively improving the assembly accuracy and quality pass rate of I-beams. Simultaneously, it reduces the amount of manual measurement work, improves the efficiency of assembly and positioning operations, and achieves precision assembly of I-beams. It is applicable to the precision assembly of different models of I-beams. This invention provides a solution for the efficient and high-precision manufacturing of marine diesel engine I-beams, with significant economic benefits and industry promotion value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2This is the front view of the present invention.

[0018] Figure 3 yes Figure 2 The left view.

[0019] Figure 4 yes Figure 2 Rear view.

[0020] Figure 5 This is an exploded view of the structure of the present invention.

[0021] Figure 6 This is one of the usage state diagrams of the present invention.

[0022] Figure 7 This is the second usage state diagram of the present invention.

[0023] In the picture, A—Web plate, A1—Left guide plate, A2—Right guide plate, 01—Support component, 02—Web plate clamping component, 03—Guide plate clamping component, 1—Web plate positioning block, 2—Web plate top support, 21—Guide slot hole, 3—Web plate bottom support, 31—Sliding slot hole, 32—Round hole, 4—First support arm, 5—Second support arm, 6—Third support arm, 7—Fourth support arm, 8—Round hinge column, 9—Sliding round guide column, 10—Sliding bolt, 11—Drive block, 111—Connecting threaded hole, 112—Threaded hole, 12—Drive screw, 121—Force tube, 13—Web plate clamping plate, 14—Bolt, 15—Guide plate positioning block, 16—Guide plate clamping plate, 17—Double-ended positive and negative threaded bolt. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings. All equivalent changes and modifications made based on the content of this specification fall within the technical scope of this invention.

[0025] This invention is used for precision assembly and positioning of I-beams of different models before welding. For example... Figure 6 As shown, the I-beam includes a web A, a left guide plate A1, and a right guide plate A2, with the left guide plate A1 and the right guide plate A2 respectively vertically disposed at the left and right ends of the web A.

[0026] Example like Figure 1 As shown, the assembly positioning device of the present invention includes a support component 01, a web clamping component 02, and a guide plate clamping component 03.

[0027] The support component 01 is located on the ground and is used to support the web plate A and adjust the height of the web plate A. The web plate clamping component 02 is connected to the support component 01 and is used to clamp the web plate A. The guide plate clamping component 03 is connected to one side of the support component 01 and is used to adjust the distance and angle between the left guide plate A1 or the right guide plate A2 and the web plate A, while clamping the left guide plate A1 or the right guide plate A2.

[0028] Please refer to the following: Figure 2 , Figure 3 and Figure 4 The supporting component 01 includes a web bottom support 3, a web top support 2, a web positioning block 1, a driving block 11, a driving screw 12, a first support arm 4, a second support arm 5, a third support arm 6, a fourth support arm 7, two sliding circular guide posts 9, two sliding bolts 10, and several circular hinge posts 8.

[0029] The web bottom support 3 is located at the bottom layer of the support component 01 and rests on the ground. The web bottom support 3 is a groove-shaped component with the groove facing upwards. Figure 5 The rear end is a closed blind end, and a circular hole 32 is provided on the blind end for the drive screw 12 to pass through. The two sides of the web bottom support 3 are provided with longitudinal sliding groove holes 31 for guiding the movement of the drive block 11.

[0030] The drive block 11 is clamped in the groove at the front of the web bottom support 3, see Figure 5 The drive screw 12 has a threaded hole 112 in the middle for connecting the drive screw 12, and threaded holes 111 at both ends for connecting the sliding bolts 10. The sliding bolts 10 are used to connect the front ends of the second support arm 5 and the third support arm 6, respectively. The drive screw 12 passes through the round hole 32 of the web bottom support 3, and its front end is threadedly connected to the threaded hole 112 of the drive block 11. The rear end of the drive screw 12 is provided with a force-applying tube 121 for applying rotational torque. Figure 5 .

[0031] The web plate top support 2 is located at the top layer of the support member 01 and directly supports the web plate A. Figure 6 The web top support 2 is a groove-shaped component with the slot facing downwards, see... Figure 5 Each side has a longitudinal guide slot 21.

[0032] The first support arm 4, the second support arm 5, the third support arm 6, and the fourth support arm 7 are all straight strip plates. The first support arm 4 and the second support arm 5 are symmetrically hinged at the midpoint by a circular hinge post 8, and can rotate relative to each other around the circular hinge post 8. The rear end of the first support arm 4 is hinged to the rear end of the web bottom support 3 on one side by a circular hinge post 8, and the front end is connected to the web top support 2 by a sliding circular guide post 9 that passes through the guide slot hole 21 on the same side of the web top support 2, and can slide back and forth along the guide slot hole 21. The rear end of the second support arm 5 is hinged to the rear end of the web top support 2 on the same side by a circular hinge post 8, and the front end is connected to one end of the drive block 11 by a sliding bolt 10 that passes through the sliding slot hole 31 on the same side of the web bottom support 3, and can slide back and forth along the sliding slot hole 31.

[0033] The third support arm 6 and the fourth support arm 7 are symmetrically hinged at the midpoint by a circular hinge post 8, and can rotate relative to each other around the circular hinge post 8. The rear end of the fourth support arm 7 is hinged to the rear end of the web bottom support 3 on the other side by a circular hinge post 8, and the front end is connected to the web top support 2 by a sliding circular guide post 9 that passes through the guide slot hole 21 on the same side of the web top support 2, and can slide back and forth along the guide slot hole 21. The rear end of the third support arm 6 is hinged to the rear end of the web top support 2 on the same side by a circular hinge post 8, and the front end is connected to the other end of the drive block 11 by a sliding bolt 10 that passes through the sliding slot hole 31 on the same side of the web bottom support 3, and can slide back and forth along the sliding slot hole 31.

[0034] like Figure 6 and Figure 7As shown, rotating the drive screw 12 causes the drive block 11 to be driven by the screw thread, converting the rotational motion of the drive screw 11 into the linear motion of the drive block 11. The drive block 11, through the sliding bolts 10 at both ends, drives the front ends of the second support arm 5 and the third support arm 6 to move backward in a straight line along the sliding groove hole 31 of the web bottom support 3, thereby changing the intersection angle between the second support arm 5 and the first support arm 4, and between the third support arm 6 and the fourth support arm 7. Consequently, the front ends of the first support arm 4 and the fourth support arm 7 move backward in a straight line along the guide groove hole 21 of the web top support 2 through the sliding circular guide post 9, thereby lifting the web top support 2 and the web A above it upward. Conversely, by rotating the drive screw 12 in the opposite direction, the drive screw 12 drives the drive block 11 via a thread. The drive block 11, through the sliding bolts 10 at both ends, drives the front ends of the second support arm 5 and the third support arm 6 to move forward in a straight line along the sliding groove hole 31 of the web bottom support 3. This changes the intersection angle between the second support arm 5 and the first support arm 4, and between the third support arm 6 and the fourth support arm 7. Consequently, the front ends of the first support arm 4 and the fourth support arm 7 move forward in a straight line along the guide groove hole 21 of the web top support 2 via the sliding circular guide post 9, thereby causing the web top support 2 and the web A above it to sink downward. Thus, by rotating the drive screw 12, the front ends of the second support arm 5 and the third support arm 6 are driven to move back and forth, thereby changing their intersection angle with the first support arm 4 and the fourth support arm 7, thus changing the support height of the web top support 2 on the web A.

[0035] Please refer to the following: Figure 2 , Figure 3 and Figure 4 The web plate positioning block 1 is fixedly connected (e.g., welded) to the rear end of the web plate top support 2, and abuts against the edge of the web plate A to position the web plate A horizontally. The top surface of the web plate positioning block 1 has a vertical threaded hole for connection with the web plate clamping component 02, see... Figure 5 A horizontal threaded through hole is provided on the side for connection with the guide plate clamping component 03.

[0036] Please see Figure 5 The web clamping component 02 includes a web clamping plate 13 and two bolts 14. The web clamping plate 13 is a flat plate pressed onto the web A. A through hole is provided on the web clamping plate 13, and the two bolts 14 pass through this through hole and connect to the vertical threaded hole of the web positioning block 1; Figure 6 and Figure 7As shown, tightening the bolt 14 clamps the web A between the web clamping plate 13 and the web top support 2 of the support member 01, thereby achieving the clamping and fixing of the web A. Using bolts 14 of different lengths can meet the clamping needs of webs A of different thicknesses.

[0037] The guide plate clamping component 03 includes a guide plate positioning block 15, a guide plate clamping plate 16, two double-ended forward and reverse threaded bolts 17, and two bolts 14. Please refer to the following reference. Figure 2 and Figure 4 The guide plate positioning block 15 has a horizontal threaded through hole for connecting the double-ended forward and reverse threaded bolts 17 and a threaded through hole for connecting the bolts 14. The thread of the horizontal threaded through hole of the guide plate positioning block 15 is opposite in direction to the thread of the horizontal threaded through hole of the web plate positioning block 1. The two ends of the double-ended forward and reverse threaded bolts 17 are respectively provided with threads in opposite directions of rotation. The two ends of the two double-ended forward and reverse threaded bolts 17 are respectively screwed into the horizontal threaded through holes of the web plate positioning block 1 and the guide plate positioning block 15, connecting the guide plate positioning block 15 to the side of the web plate positioning block 1. The guide plate clamp 16 is a flat plate, pressed against one side of the left guide plate A1 or the right guide plate A2. The guide plate clamp 16 has a through hole, through which two bolts 14 pass and connect to the threaded through hole of the guide plate clamp 16. Figure 6 and Figure 7 As shown, tightening the bolt 14 clamps the left guide plate A1 or the right guide plate A2 between the guide plate clamping plate 16 and the guide plate positioning block 15, thereby achieving the clamping and fixing of the left guide plate A1 or the right guide plate A2. Using bolts 14 of different lengths can meet the clamping needs of left guide plates A1 and right guide plates A2 of different thicknesses.

[0038] When the two double-ended threaded bolts 17 are rotated in the same direction, the guide plate positioning block 15 and the web plate positioning block 1 can move closer (towards) or further away (in opposite directions) through the threads, thereby adjusting the distance between the left guide plate A1 or the right guide plate A2 and the web plate A, i.e., the assembly gap. When the two double-ended threaded bolts 17 are rotated in opposite directions, the angle position of the left guide plate A1 or the right guide plate A2 can be adjusted, thereby adjusting the relative angle between the left guide plate A1 or the right guide plate A2 and the web plate A, so as to ensure that the left guide plate A1 or the right guide plate A2 and the web plate A maintain a perpendicular assembly angle.

[0039] The assembly and positioning method for welding different types of I-beams as described in this invention includes the following steps: Step 1: Clamping and positioning the web plate — Step 1), place the appropriate part of the web plate A near the right guide plate A2 on the web plate top support 2 of the support member 01. Please refer to [link to relevant documentation]. Figure 6 And make the edge of the web plate A abut against the web plate positioning block 1; Step 1 (2) Use and tighten the bolt 14 to clamp the web A between the web clamp 13 and the web top support 2 of the support member 01. Step 1 (3), rotating the drive screw 12 causes the drive block 11 to move back and forth, which in turn drives the second support arm 5 to change its intersection angle with the first support arm 4. Simultaneously, the third support arm 6 changes its intersection angle with the fourth support arm 7. Thus, by adjusting the height of the web plate top brace 2, the support height of the web plate A is adjusted to meet the predetermined technical requirements. (See...) Figure 6 ; Step 2: Clamping and positioning the right guide plate — Step 2, 1), hoist the right guide plate A2 to the right side of the web plate A and bring it close to the web plate A; Step 2), use and tighten the bolt 14 to clamp the right guide plate A2 between the guide plate clamp 16 and the guide plate positioning block 15 through the guide plate clamp 16; Step 2 (3) Rotate the two double-ended threaded bolts 17 in the opposite direction to adjust the angle of the right guide plate A2, ensuring that the relative angle between the right guide plate A2 and the web plate A is perpendicular. Rotate the two double-ended threaded bolts 17 in the same direction, and adjust the distance between the right guide plate A2 and the web plate A through the guide plate positioning block 15 and the guide plate clamping plate 16, so that the assembly gap between the right guide plate A2 and the web plate A meets the predetermined technical requirements. See [link to relevant documentation]. Figure 6 ; Step 4) Fix the relative position between the right guide plate A2 and the web plate A by spot welding to complete the assembly and positioning of the right guide plate A2 and the web plate A. Step 3: Clamping and positioning the right guide plate — Step 3, 1) Move the assembly positioning device to a suitable position close to the left guide plate A1, place the web plate A on the web plate top support 2 and make the edge of the web plate A abut against the web plate positioning block 1, use and tighten the bolt 14, and clamp the web plate A between the web plate clamp 13 and the web plate top support 2 through the web plate clamp 13; Step 3 (2) Following the operation method described in Step 1 (3), the web plate A is adjusted to a horizontal position by adjusting the height of the web plate support 2; Step 3), remove the guide plate clamping component 03 from the right side of the web plate positioning block 1 and connect it to the left side of the web plate positioning block 1 in a manner symmetrical to the original structure, such as... Figure 7 As shown; Step 3 (4) Hoist the left guide plate A1 to the left side of the web plate A and close to the web plate A, use and tighten the bolt 14, and clamp the left guide plate A1 between the guide plate clamp 16 and the guide plate positioning block 15 through the guide plate clamp 16; Step 3 (5) Following the operation method described in Step 2 (3), adjust the angle position of the left guide plate A1 to ensure that the relative angle between the left guide plate A1 and the web plate A is perpendicular, and adjust the distance between the left guide plate A1 and the web plate A so that the assembly gap between the left guide plate A1 and the web plate A meets the predetermined technical requirements. Step 3 (6) uses spot welding to fix the relative position between the left guide plate A1 and the web plate A, thus completing the assembly and positioning of the left guide plate A1 and the web plate A, thereby completing the precision assembly and positioning before welding the I-beam.

[0040] This invention connects the web plate and two guide plates respectively through an assembly positioning device, adjusts the height of the web plate by driving the support arm through a drive screw, and adjusts the assembly gap and angle between the web plate and the guide plates through double-headed positive and negative threaded bolts, thereby achieving precise assembly positioning of I-beams of different models.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the content of this application should be considered within the technical scope of the present invention.

Claims

1. An assembly and positioning device suitable for welding different types of I-beams, wherein the I-beam includes a web and a left guide plate and a right guide plate respectively vertically disposed at the left and right ends of the web; characterized in that: The assembly positioning device includes a support component, a web clamping component, and a guide plate clamping component. The support component is located on the ground and is used to support the web and adjust its height. The web clamping component is connected to the top of the support component and is used to clamp the web. The guide plate clamping component is connected to one side of the support component and is used to clamp the left and right guide plates, while adjusting the distance and angle between the left and right guide plates and the web. The web clamping component secures the web to the supporting component. The supporting component positions and adjusts the horizontal height of the web through a mechanical lifting mechanism to meet predetermined technical requirements. The guide plate clamping component sequentially clamps the left and right guide plates to the side of the supporting component. The relative angles between the left and right guide plates and the web are adjusted to achieve perpendicularity through a positive and negative thread mechanism. The gaps between the left and right guide plates and the web are also adjusted to meet predetermined technical requirements, thereby completing the assembly and positioning of the I-beam before welding.

2. The assembly positioning device for welding different types of I-beams as described in claim 1, characterized in that: The supporting components include a web bottom support, a web top support, a web positioning block, a driving block, a driving screw, a first support arm, a second support arm, a third support arm, a fourth support arm, two sliding circular guide posts, and two sliding bolts. The bottom web support is located at the bottom of the support component. It is a groove-shaped component with the groove opening facing upwards, and the rear is a closed blind end. It has longitudinal sliding groove holes on both sides. The top web support is located at the top of the support component and directly supports the web. It is a groove-shaped component with the groove opening facing downwards and longitudinal guide groove holes on both sides. The web plate positioning block is fixedly connected to the rear end of the web plate top support and abuts against the edge of the web plate to position the horizontal position of the web plate. The top surface of the web plate positioning block is provided with a vertical threaded hole connected to the web plate clamping component, and the side surface is provided with a horizontal threaded through hole connected to the guide plate clamping component. The drive block is clamped in the groove at the front of the web bottom support, and the drive screw passes through the round hole on the blind end of the rear of the web bottom support, with its front end connected to the drive block by a thread. The first, second, third, and fourth support arms are all straight strip plates. The first and second support arms, and the third and fourth support arms, are symmetrically hinged at their midpoints and can rotate relative to each other around the midpoints. The rear ends of the first and fourth support arms are respectively hinged to the two sides of the rear end of the web bottom support, and the front ends are respectively connected to the web top support through sliding circular guide posts passing through the guide slot holes and can slide back and forth along the guide slot holes. The rear ends of the second and third support arms are respectively hinged to the two sides of the rear end of the web top support, and the front ends are respectively connected to the two ends of the drive block through sliding bolts passing through the sliding slot holes and can slide back and forth along the sliding slot holes. Rotating the drive screw drives the drive block, which in turn drives the front ends of the second and third support arms to move back and forth along the sliding groove holes of the web bottom support. This changes the intersection angle between the second and first support arms and between the third and fourth support arms, thereby adjusting the horizontal height of the web to meet the predetermined technical requirements by raising and lowering the web top support.

3. The assembly positioning device for welding different types of I-beams as described in claim 2, characterized in that: The rear end of the drive screw is provided with a force-applying tube for applying rotational torque.

4. The assembly positioning device for welding different types of I-beams as described in claim 2, characterized in that: The drive block has a threaded hole in the middle for connecting the drive screw, and threaded holes at both ends for connecting the sliding bolts.

5. The assembly positioning device for welding different types of I-beams as described in claim 2, characterized in that: The web clamping component includes a web clamp, which is bolted to the vertical threaded hole of the web positioning block and pressed onto the web, thereby clamping the web between the web clamp and the web top support of the supporting component.

6. The assembly positioning device for welding different types of I-beams as described in claim 5, characterized in that: The guide plate clamping component includes a guide plate positioning block, a guide plate clamping plate, and two double-ended positive and negative threaded bolts; The guide plate positioning block has a horizontal threaded through hole with a thread direction opposite to that of the horizontal threaded through hole of the web plate positioning block. The two ends of the two double-ended forward and reverse threaded bolts have threads with opposite rotation directions and are screwed into the horizontal threaded through holes of the web plate positioning block and the guide plate positioning block respectively, connecting the guide plate positioning block to the side of the web plate positioning block. The guide plate clamp is bolted to the water guide plate positioning block and clamps the left or right guide plate between the guide plate clamp and the guide plate positioning block. Rotate the two double-ended screws in opposite directions to adjust the angle of the left or right guide plate, ensuring that the left or right guide plate maintains a perpendicular assembly angle with the web plate. Rotate the two double-ended screws in the same direction to drive the guide plate positioning block and the web plate positioning block to achieve relative movement, thereby adjusting the assembly gap between the left or right guide plate and the web plate to meet the predetermined technical requirements.

7. The assembly positioning device for welding different types of I-beams as described in claim 5 or 6, characterized in that: Bolts of different lengths are used to meet the clamping requirements of web plates, left guide plates, and right guide plates of different thicknesses.

8. An assembly positioning method applicable to welding different types of I-beams, implemented using the assembly positioning device described in claim 6, characterized in that: The assembly positioning method includes the following specific steps: Step 1: Clamping and positioning the web plate — Step 1), place the web plate on the web plate top support of the support member at a suitable position near the right side, and make the edge of the web plate abut against the web plate positioning block; Step 1, 2), clamp the web plate between the web plate clamp and the web plate top support using bolts; Step 1 (3) Rotate the drive screw to drive the drive block to move back and forth, and then drive the second support arm and the third support arm to change their intersection angle with the first support arm and the fourth support arm respectively. In this way, by adjusting the height of the web plate top support, the horizontal height of the web plate is adjusted to meet the predetermined technical requirements. Step 2: Clamping and positioning the right guide plate — Step 2, 1), hoist the right guide plate to the right side of the web and bring it close to the web; Step 2), clamp the right guide plate between the guide plate clamp and the guide plate positioning block using bolts; Step 2 (3) Rotate the two double-headed screws in the opposite direction to adjust the angle of the right guide plate so that the relative angle between the right guide plate and the web plate is perpendicular. Rotate the two double-headed screws in the same direction to adjust the distance between the right guide plate and the web plate through the guide plate positioning block and the guide plate clamping plate so that the assembly gap between the right guide plate and the web plate meets the predetermined technical requirements. Step 4) Fix the relative position between the right guide plate and the web plate by spot welding to complete the assembly and positioning of the right guide plate and the web plate. Step 3: Clamping and positioning the left guide plate — Step 3, 1) Move the assembly positioning device to a suitable position near the left side of the web plate, place the web plate on the web plate top support and make the edge of the web plate abut against the web plate positioning block, and clamp the web plate between the web plate clamp and the web plate top support with bolts. Step 3, 2), following the operation method described in Step 1, 3), adjust the web plate to a horizontal position by adjusting the height of the web plate support; Step 3), remove the guide plate clamping component from the right side of the web plate positioning block and connect it to the left side of the web plate positioning block in a manner symmetrical to the original structure; Step 3, 4): Hoist the left guide plate to the left side of the web and close to the web, and clamp the left guide plate between the guide plate clamp and the guide plate positioning block using bolts; Step 3 (5) Following the operation method described in Step 2 (3), adjust the angle position of the left guide plate to ensure that the relative angle between the left guide plate and the web plate is perpendicular, and adjust the distance between the left guide plate and the web plate to ensure that the assembly gap between the left guide plate and the web plate meets the predetermined technical requirements. Step 3 (6) Use spot welding to fix the relative position between the left guide plate and the web plate, thus completing the assembly and positioning of the left guide plate and the web plate, thereby completing the precision assembly and positioning before welding the I-beam.

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