A post-welding detection tool for a tower crane lower support steel structural member

Abstract

The utility model relates to engineering machinery manufacturing technical field discloses a tower crane lower support steel structural member detects frock after welding, including detection platform, the both sides of detection platform all are seted up with guide slot, the inside of guide slot is provided with detection subassembly, detection subassembly includes guide post, guide post slidingly connected in the inside of guide slot, the outside of two guide posts is connected with the adjusting frame of sliding, the upper surface of adjusting frame is fixedly connected with long ruler, the lower surface of adjusting frame is fixedly connected with two connecting frames, and the fixed connection with center pole has between two connecting frames. The utility model discloses utilize the adjusting frame close to the surface of the object to be measured, cooperate center pole to detect whether both sides hole is in the same horizontal line, and side rod is convenient for verifying the uniformity of hole size and position offset, and it is convenient to avoid the detection interruption caused by line fault, and easy operation, and the hole radius is measured through short ruler to evaluate the consistency, and the sliding sleeve longitudinal resistance is increased by using the pressing block extrusion adjusting frame.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery manufacturing technology, and in particular to a tooling for post-weld inspection of steel structural components of the lower support of a tower crane. Background Technology

[0002] Tower cranes are jib cranes that are supported by a metal structure and can rotate around a vertical axis. They are mainly used for vertical and horizontal material transportation in high-rise buildings, bridges, ports and other projects. The lower support is a key component of the tower crane's metal structure. It is located between the top of the tower body and the slewing bearing, and bears the load of the upper part of the tower crane and transmits it to the tower body.

[0003] When inspecting the steel structural components of the lower support of a tower crane after welding, it is usually necessary to measure the position of the holes in the connecting parts on both sides of the structural component and whether they are on the same horizontal line. However, the traditional method of using an external high-precision measuring instrument is difficult because the measuring instrument is expensive, difficult to maintain, and has high requirements for the operating environment and operators. This increases the difficulty of measuring the holes in the connecting parts after welding on both sides. In addition, the measuring instrument is prone to failure and short circuit after being powered on for a long time, making it difficult to measure the structural component in a timely manner. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a post-weld inspection fixture for the steel structure components of the lower support of a tower crane.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a post-weld inspection fixture for steel structural components of a tower crane lower support, including an inspection table, with guide grooves on both sides of the inspection table, and inspection components arranged inside the guide grooves; The detection assembly includes guide posts, which are slidably connected inside the guide groove. An adjustment frame is slidably connected to the outside of the two guide posts. A long ruler is fixedly connected to the upper surface of the adjustment frame, and two connecting frames are fixedly connected to the lower surface of the adjustment frame. A central rod is fixedly connected between the two connecting frames.

[0006] As a further description of the above technical solution: One of the connecting frames is rotatably connected to a bidirectional stud, and the other connecting frame is fixedly connected to a limiting square post. The connecting frame is slidably connected to two movable frames, which are threaded to the outside of the bidirectional stud.

[0007] As a further description of the above technical solution: The other two connecting brackets are slidably connected to the outside of the limiting square post, with a side rod fixedly connected to one end of each of the two connecting brackets, and a knob fixedly connected to one end of the bidirectional stud.

[0008] As a further description of the above technical solution: The adjusting frame is equipped with a measuring component, which includes a sliding sleeve that is slidably connected inside the adjusting frame. The inner wall of the sliding sleeve has two grooves, and springs are fixedly installed inside the two grooves.

[0009] As a further description of the above technical solution: One end of the spring is fixedly connected to a pressure block, which is slidably connected inside the groove. A fixing post is fixedly connected to the lower surface of the sliding sleeve. Support rods are fixedly connected to both sides of the fixing post, and a short ruler is fixedly connected to the upper surface of the support rod.

[0010] As a further description of the above technical solution: One of the guide columns has a screw hole on one side, and a bolt is threaded into the screw hole. The adjusting bracket has a screw hole on one side, and a bolt is threaded into the screw hole.

[0011] As a further description of the above technical solution: A stepper motor is fixedly installed on one side of the testing platform. A bidirectional lead screw is fixedly connected to the output end of the stepper motor. Two translation blocks are slidably connected to the outside of the bidirectional lead screw. The two translation blocks are slidably connected to the inside of the lower surface of the testing platform. Two clamps are fixedly connected to one side of each translation block.

[0012] This utility model has the following beneficial effects: 1. This utility model, through the setting of the detection component, utilizes the adjusting frame that slides outside the guide column to help it get close to the surface of the object to be measured. Under the action of the vertical center rod, it helps to detect whether the holes on both sides of the object are located on the same center line. Under the action of the vertical side rod, it helps to detect whether the holes on both sides of the object are of the same size and whether their positions are offset. There is no need to connect to the power to turn on the measuring instrument, reducing the phenomenon that holes cannot be measured due to short circuits or measuring instrument failures. The operation is relatively simple.

[0013] 2. This utility model, through the setting of the measuring component, uses a short ruler supported by the support rod to help measure the radius of the hole, thereby facilitating the observation of the uniformity of the hole. Under the action of the pressure block pressing against the adjustment frame, it helps to increase the resistance of the longitudinal movement of the sliding sleeve, thereby helping to reduce the displacement phenomenon generated after the sliding sleeve slides while being able to slide. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2This is a schematic diagram of the adjustment frame structure proposed in this utility model; Figure 3 This is a schematic diagram of the mobile frame structure proposed in this utility model; Figure 4 This is a schematic diagram of the connecting frame structure proposed in this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the sliding sleeve proposed in this utility model; Figure 6 This is a schematic diagram of the guide column structure proposed in this utility model; Figure 7 This is a schematic diagram of the bottom structure of the testing platform proposed in this utility model; Figure 8 This is a schematic diagram of the cross-sectional structure of the guide groove proposed in this utility model; Figure 9 This is a schematic diagram of the translation block structure proposed in this utility model.

[0015] Legend: 1. Testing table; 2. Guide groove; 3. Guide column; 4. Adjustment frame; 5. Long ruler; 6. Connecting frame; 7. Center rod; 8. Two-way stud; 9. Limiting square column; 10. Moving frame; 11. Side rod; 12. Knob; 13. Sliding sleeve; 14. Groove; 15. Spring; 16. Pressure block; 17. Fixed column; 18. Support rod; 19. Short ruler; 20. Screw hole one; 21. Bolt one; 22. Screw hole two; 23. Bolt two; 24. Stepper motor; 25. Two-way lead screw; 26. Translation block; 27. Clamp. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] As attached Figure 1-9 As shown, one embodiment of this utility model is provided: a post-weld inspection fixture for steel structure components of the lower support of a tower crane, including an inspection table 1, with guide grooves 2 on both sides of the inspection table 1, and inspection components are arranged inside the guide grooves 2. The detection assembly includes guide posts 3, which are slidably connected inside the guide groove 2. Adjustment frames 4 are slidably connected to the outside of the two guide posts 3. A long ruler 5 is fixedly connected to the upper surface of the adjustment frame 4 to facilitate the measurement of the hole spacing. Two connecting frames 6 are fixedly connected to the lower surface of the adjustment frame 4. A center rod 7 is fixedly connected between the two connecting frames 6 to measure whether the center position of the hole is on the same horizontal line.

[0018] As attached Figure 4 As shown, one of the connecting frames 6 has a bidirectional stud 8 rotatably connected inside, and the outside has threads in the opposite direction. The other connecting frame 6 has a limiting square post 9 fixedly connected inside, which facilitates the stability of the side rod 11 when it moves. The connecting frame 6 has two sliding frames 10 slidably connected inside, which drive the side rod 11 to move. The two sliding frames 10 are threaded to the outside of the bidirectional stud 8, and the other two connecting frames 6 are slidably connected to the outside of the limiting square post 9. The side rod 11 is fixedly connected to one end of the two connecting frames 6 to detect whether the side of the hole is on the same horizontal line. A knob 12 is fixedly connected to one end of the bidirectional stud 8. The adjusting frame 4 has a measuring component inside, which includes a sliding sleeve 13. The sliding sleeve 13 is slidably connected inside the adjusting frame 4 and adjusts the position according to the position of the hole.

[0019] As attached Figure 5 As shown, the inner wall of the sliding sleeve 13 has two grooves 14 to facilitate the retraction of the pressure block 16. A spring 15 is fixedly installed inside the two grooves 14. One end of the spring 15 is fixedly connected to the pressure block 16 to apply elastic force to the pressure block 16. The pressure block 16 is slidably connected inside the groove 14. A fixing post 17 is fixedly connected to the lower surface of the sliding sleeve 13. Support rods 18 are fixedly connected to both sides of the fixing post 17 to facilitate the support of the short ruler 19. The short ruler 19 is fixedly connected to the upper surface of the support rod 18 to measure the radius of the hole.

[0020] As attached Figure 6 As shown, one of the guide posts 3 has a screw hole 20 on one side for mounting bolt 21.

[0021] As attached Figure 2 As shown, a screw hole 22 is provided on one side of the adjustment bracket 4 for mounting bolt 23.

[0022] As attached Figure 1 As shown, bolt 21 is connected to the internal thread of screw hole 20 to facilitate the fixing of guide post 3, and bolt 23 is connected to the internal thread of screw hole 22 to facilitate the fixing of adjustment bracket 4.

[0023] As attached Figure 7 As shown, a stepper motor 24 is fixedly installed on one side of the testing table 1. A bidirectional lead screw 25 is fixedly connected to the output end of the stepper motor 24. The lead screw has threads in opposite directions on the outside. Two translation blocks 26 are slidably connected to the outside of the bidirectional lead screw 25, which drives the clamp 27 to translate. The two translation blocks 26 are slidably connected to the inside of the lower surface of the testing table 1. Two clamps 27 are fixedly connected to one side of the translation blocks 26 to clamp and limit the object to be tested.

[0024] Working principle: In use, first place the steel structure of the lower support to be tested on the upper surface of the testing table 1. Then, use an external controller to start the stepper motor 24, so that its output end drives the bidirectional lead screw 25 to rotate. Under the action of the threads in opposite directions on both sides, the two translation blocks 26 will move closer to each other, which in turn will drive the two clamps 27 to move closer to each other, clamping and positioning the object to be tested. Then, slide the adjusting frame 4 down outside the guide column 3 until it moves to the surface of the object to be tested. Tighten the bolt 23 under the connection of the screw hole 22 to fix the adjusting frame 4. Then move the guide column 3 laterally so that the guide column 3 slides inside the guide groove 2. When the guide column 3 indirectly drives the center rod 7 to the middle position of the two holes, tighten the bolt 21 under the connection of the screw hole 20 to fix the guide rod 7. With the column 3 fixed, the center of the hole can be observed to see if it is offset by checking if the center of the two holes is on the center rod 7. When the knob 12 is turned, the bidirectional stud 8 will be rotated, which will cause the two movable frames 10 to slide inside the connecting frame 6. At the same time, they will move closer to each other according to the opposite direction of the threads of the bidirectional stud 8, which will in turn cause the two side rods 11 to move closer to each other. When the two side rods 11 move to the two sides of the hole respectively, the knob 12 is stopped. Then, it is observed whether the two sides of the hole are on the same horizontal line. Then, the sliding sleeve 13 is moved laterally, so that the sliding sleeve 13 indirectly drives the fixed column 17 to the center of the hole. At this time, the support rod 18 is on both sides of the hole. The radius of the hole is measured by using the short ruler 19 to check if they are consistent, which facilitates the measurement of the hole.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A post-welding detection tool for a tower crane lower support steel structure, comprising a detection table (1), characterized in that: The testing platform (1) has guide grooves (2) on both sides, and the testing components are installed inside the guide grooves (2). The detection component includes guide posts (3), which are slidably connected inside the guide groove (2). Adjustment frames (4) are slidably connected to the outside of the two guide posts (3). A long ruler (5) is fixedly connected to the upper surface of the adjustment frame (4). Two connecting frames (6) are fixedly connected to the lower surface of the adjustment frame (4). A center rod (7) is fixedly connected between the two connecting frames (6).

2. The post-weld inspection fixture for the steel structure of the lower support of a tower crane according to claim 1, characterized in that: One of the connecting frames (6) is rotatably connected to a bidirectional stud (8), and the other connecting frame (6) is fixedly connected to a limiting square post (9). The connecting frame (6) is slidably connected to two movable frames (10), and the two movable frames (10) are threaded to the outside of the bidirectional stud (8).

3. The post-weld testing tooling for a tower crane lower pedestal steel structure member of claim 1, wherein: The other two connecting brackets (6) are slidably connected to the outside of the limiting column (9), with a side rod (11) fixedly connected to one end of each of the two connecting brackets (6), and a knob (12) fixedly connected to one end of the bidirectional stud (8).

4. The post-weld testing tooling for a tower crane lower pedestal steel structure member of claim 1, wherein: The measuring component is provided inside the adjusting frame (4). The measuring component includes a sliding sleeve (13). The sliding sleeve (13) is slidably connected inside the adjusting frame (4). Two grooves (14) are opened on the inner wall of the sliding sleeve (13). Springs (15) are fixedly installed inside the two grooves (14).

5. The post-weld testing tooling for a tower crane lower pedestal steel structure member of claim 4, wherein: One end of the spring (15) is fixedly connected to a pressure block (16), the pressure block (16) is slidably connected inside the groove (14), the lower surface of the sliding sleeve (13) is fixedly connected to a fixing post (17), both sides of the fixing post (17) are fixedly connected to a support rod (18), and the upper surface of the support rod (18) is fixedly connected to a short ruler (19).

6. The post-weld testing fixture for a tower crane lower pedestal steel structure member of claim 1, wherein: One of the guide posts (3) has a screw hole (20) on one side, and a bolt (21) is connected to the screw hole (20) by its internal thread. The adjusting bracket (4) has a screw hole (22) on one side, and a bolt (23) is connected to the screw hole (22) by its internal thread.

7. The post-weld testing fixture for a tower crane lower pedestal steel structure member of claim 1, wherein: A stepper motor (24) is fixedly installed on one side of the testing platform (1). A bidirectional lead screw (25) is fixedly connected to the output end of the stepper motor (24). Two translation blocks (26) are slidably connected to the outside of the bidirectional lead screw (25). The two translation blocks (26) are slidably connected to the inside of the lower surface of the testing platform (1). Two clamps (27) are fixedly connected to one side of the translation blocks (26).

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