An auxiliary jig for steel weld joint inspection

Abstract

The utility model belongs to the technical field of clamp especially relates to a kind of auxiliary fixture for steel weld detection, including base and two groups of clamping mechanism spaced apart along first direction, each group of clamping mechanism includes: two locating seats, two clamping blocks and transmission mechanism;Two locating seats are set on base, two locating seats are symmetrically distributed in second direction, the surface of two locating seats and steel contact is inclined plane;Two clamping blocks are slidably set on base along second direction, two clamping blocks are located above two locating seats respectively, the surface of two clamping blocks and steel contact is inclined plane;Transmission mechanism can simultaneously drive two clamping blocks to approach each other;Compared with prior art, the auxiliary fixture of the utility model adopts the clamping structure of inclined plane cooperation, realizes two-way synchronous clamping by single driving mechanism, simplifies operation steps, improves detection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, and in particular relates to an auxiliary fixture for inspecting steel welds. Background Technology

[0002] After steel is welded, it is generally necessary to conduct a trial weld to obtain a test weld, and then test the strength of the weld to ensure the quality of the weld before mass production can begin.

[0003] The strength testing methods for steel include tensile testing, bending testing, and impact testing. To ensure the accuracy of the tests, the steel needs to be clamped before testing to prevent displacement during the test. Patent document CN221572168U discloses a weld strength testing device. In this technology, the steel is clamped by the cooperation of a first lead screw, two sliders, a servo motor, a support plate, a first screw, a pressure plate, and a second screw. However, the clamping process requires not only the servo motor to drive the first lever to rotate and adjust the position of the two sliders, but also the rotation of the first screws on the two sliders to drive the support plate to press the upper surface of the steel, and then the rotation of the second screws on the two support plates to drive the pressure plate to press the side of the steel. The clamping structure is relatively complex, and the clamping process is time-consuming and labor-intensive, reducing the efficiency of steel testing. Therefore, improvements to the existing steel testing clamping structure are needed. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing an auxiliary fixture for inspecting steel welds. It adopts a clamping structure with inclined surfaces and achieves bidirectional synchronous clamping through a single drive mechanism, simplifying the operation steps and improving the inspection efficiency.

[0005] In view of this, the present invention provides an auxiliary fixture for inspecting steel welds, comprising a base and two sets of clamping mechanisms spaced apart along a first direction, each set of clamping mechanisms comprising:

[0006] Two positioning seats are set on the base and are symmetrically distributed in the second direction. The surfaces of the two positioning seats that contact the steel are inclined.

[0007] Two clamping blocks are slidably mounted on the base along the second direction. The two clamping blocks are located above the two positioning seats respectively, and the surfaces of the two clamping blocks that contact the steel are inclined surfaces.

[0008] The transmission mechanism can simultaneously drive two clamping blocks to move closer to each other.

[0009] The two clamping mechanisms clamp the two ends of the steel respectively.

[0010] In this technical solution, an auxiliary clamp can be installed below the pendulum. First, the two ends of the steel are placed on the two positioning seats of the two clamping mechanisms, so that the steel is positioned at the symmetrical center of the two positioning seats. Then, the two clamping blocks are driven to move closer to each other through the transmission mechanism, so that both clamping blocks are in contact with the steel. This allows the two positioning seats and two clamping blocks in each clamping mechanism to cooperate and apply clamping force from the four corners of the steel to the center to clamp the steel. Finally, the pendulum impacts the welding position of the steel to complete the strength test.

[0011] In the above technical solution, the transmission mechanism further includes:

[0012] Two transmission blocks are symmetrically arranged on two clamping blocks, and the surfaces of the two transmission blocks that are far apart from each other are inclined planes.

[0013] The transmission frame has two push pins spaced apart in a second direction, and the surfaces of the two push pins that are close to each other are in contact with the surfaces of the two transmission blocks that are far apart from each other.

[0014] The driving component is used to drive the transmission frame to move vertically.

[0015] In the above technical solution, further, the surface in contact between the pusher and the transmission block is an inclined surface adapted to the transmission block.

[0016] In the above technical solution, the driving component further includes:

[0017] The upright frame is mounted on the base and has a horizontal section located above the transmission frame. The horizontal section has threaded holes that penetrate its upper and lower surfaces.

[0018] The drive screw is coaxially distributed and threadedly connected to the threaded hole. One end of the drive screw is rotatably connected to the transmission frame, and the other end of the drive screw is located above the upright frame.

[0019] Guide components are used to guide the vertical movement of the transmission frame relative to the upright frame.

[0020] In the above technical solution, a manual lever is further provided at the end of the drive screw away from the transmission frame.

[0021] In the above technical solution, the guide component further includes:

[0022] A guide hole is provided on the horizontal section, and the guide hole penetrates the upper and lower surfaces of the horizontal section;

[0023] The guide rod is coaxially distributed with the guide hole and vertically slidably connected. One end of the guide rod is connected to the transmission frame.

[0024] Furthermore, in the above technical solution, the positioning seat and the base are detachably connected.

[0025] In the above technical solution, the base is further provided with two sets of sliding grooves at intervals for each clamping block along the first direction, and sliding columns are slidably arranged in both sets of sliding grooves along the second direction. The two sliding columns are respectively connected to the two side walls of the clamping block.

[0026] The beneficial effects of this utility model are:

[0027] 1. By using a positioning seat and clamping block with inclined surfaces, combined with a transmission mechanism, bidirectional synchronous clamping is achieved, simplifying the structure and improving clamping efficiency.

[0028] 2. The use of inclined push column and transmission block to achieve bidirectional clamping controlled by a single drive mechanism makes operation more convenient. Furthermore, the inclined surfaces of the push column and transmission block are adapted to reduce friction and improve transmission stability.

[0029] 3. The drive screw is threaded into the upright frame and combined with the guide components to ensure smooth lifting and lowering of the transmission frame and avoid jamming. In addition, the manual lever facilitates manual adjustment and is suitable for environments without power.

[0030] 4. The detachable design of the positioning seat and the base makes it easy to replace the positioning seat with the corresponding slope according to the steel with different outer contours, so as to meet the inspection needs of steel of different sizes. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional schematic diagram of the auxiliary clamp of this utility model.

[0033] Figure 2 This is a three-dimensional schematic diagram of the auxiliary clamp of this utility model holding steel.

[0034] Figure 3 This is a front view schematic diagram of the auxiliary clamp of this utility model holding steel.

[0035] Figure 4 This is a side view of the auxiliary clamp of this utility model holding steel.

[0036] Figure 5 This is a side view of the auxiliary clamp of this utility model for releasing steel.

[0037] The markings in the diagram are as follows:

[0038] 1. Base; 2. Positioning seat; 3. Clamping block; 4. Transmission block; 5. Transmission frame; 6. Stand; 7. Horizontal section; 701. Threaded hole; 8. Drive screw; 9. Manual lever; 10. Guide hole; 11. Guide rod; 12. Slide groove; 13. Sliding column; G. Steel; X. First direction; Y. Second direction. Detailed Implementation

[0039] 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.

[0040] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0041] The strength testing of steel G in this invention employs a pendulum impact test, a common industry practice. The "steel G" referred to in this invention is actually a test weldment. Steel G typically has a rectangular cross-section with chamfers at its four corners. It also has a V-shaped notch at a specific angle (usually 45 degrees) and depth in the center, simulating a crack initiation that may occur during actual use. After clamping steel G with an auxiliary fixture, the notch is positioned so that it faces the direction of the pendulum impact and is located on the impact center line of the pendulum. The pendulum is then dropped freely from a preset height, subjecting steel G to a rapid impact load. Finally, the energy absorbed by steel G is determined by measuring the energy change before and after the impact. The energy difference before and after the impact is the energy absorbed by steel G, reflecting its ability to resist impact loads.

[0042] Example 1

[0043] like Figures 1-5 As shown, this embodiment provides an auxiliary fixture for inspecting weld seams of steel, including a base 1 and two sets of clamping mechanisms spaced apart along a first direction X, with the two sets of clamping mechanisms clamping the two ends of the steel G respectively;

[0044] In this embodiment, the base 1 can be made of high-strength cast iron or welded steel plate, and the surface is treated with anti-rust to ensure load-bearing capacity and stability.

[0045] In this embodiment, each clamping mechanism includes: two positioning seats 2, two clamping blocks 3, and a transmission mechanism;

[0046] Please see Figure 1 Two positioning seats 2 are set on the base 1. The two positioning seats 2 are symmetrically distributed in the second direction Y. The surfaces of the two positioning seats 2 that contact the steel material G are inclined surfaces. The chamfers at the four corners of the steel material G are adapted to the inclined surfaces on the positioning seats 2. During positioning, the worker places the steel material G along the length direction of the first direction X on the two sets of clamping mechanisms, and then contacts the two chamfers at the bottom of the steel material G with the inclined surfaces on the two positioning seats 2 to complete the positioning. In this embodiment, the positioning seats 2 can be designed to be detachably connected to the base 1. For example, the base 1 is provided with threaded holes for mounting the positioning seats 2, and the positioning seats 2 are provided with through holes. The threaded fasteners cooperate with the threaded holes and through holes to fix the positioning seats 2 on the base 1.

[0047] Two clamping blocks 3 are slidably mounted on the base 1 along the second direction Y. The two clamping blocks 3 are respectively located above the two positioning seats 2. The surfaces of the two clamping blocks 3 that contact the steel G are inclined surfaces. The inclined surfaces on the clamping blocks 3 can be adapted to the chamfer angle of the steel G.

[0048] The transmission mechanism can simultaneously drive the two clamping blocks 3 to move closer to each other;

[0049] In this embodiment, after the two ends of the steel G are positioned by the two positioning seats 2 in the two sets of clamping mechanisms, the steel G is located between the two clamping blocks 3. At this time, the transmission mechanism drives the two clamping blocks 3 to move closer to each other, so that the two positioning seats 2 and the two clamping blocks 3 in each set of clamping mechanisms cooperate to apply clamping force from the four corners of the steel G to the center to clamp the steel G.

[0050] Figure 2 and Figure 3 This diagram illustrates a clamping action on steel G. In actual clamping, the notch on steel G faces the direction of the pendulum's impact; that is, the orientation of the notch after clamping steel G is not necessarily in accordance with... Figure 2 Orientation within.

[0051] Example 2

[0052] Based on Embodiment 1, this embodiment also discloses a structure of the transmission mechanism;

[0053] In this embodiment, the transmission mechanism includes: two transmission blocks 4, a transmission frame 5, and a driving component;

[0054] Please see Figure 1 or Figure 2 Two transmission blocks 4 are symmetrically arranged on two clamping blocks 3, and the surfaces of the two transmission blocks 4 that are far apart from each other are inclined surfaces;

[0055] The transmission frame 5 is generally U-shaped. The transmission frame 5 has two push columns spaced apart in the second direction Y. The surfaces of the two push columns that are close to each other are in contact with the surfaces of the two transmission blocks 4 that are far apart. In this embodiment, the surfaces of the push columns that are in contact with the transmission blocks 4 are inclined surfaces that are adapted to the transmission blocks 4. This can reduce friction and improve the stability of the transmission.

[0056] The driving component is used to drive the transmission frame 5 to move vertically. Specifically, in this embodiment, the driving component includes: a vertical frame 6, a driving screw 8, and a guide component.

[0057] The support frame 6 is L-shaped in general, with a horizontal section 7 located above the transmission frame 5 and a vertical section located on one side of the transmission frame 5. The vertical section is fixedly connected to the base 1, and the horizontal section 7 is provided with threaded holes 701 that penetrate its upper and lower surfaces.

[0058] The drive screw 8 is coaxially distributed and threadedly connected to the threaded hole 701. One end of the drive screw 8 is rotatably connected to the transmission frame 5, and the other end of the drive screw 8 is located above the upright frame 6. In this embodiment, a manual lever 9 is provided at the end of the drive screw 8 away from the transmission frame 5, which is convenient for manual adjustment without the need for tools and is suitable for non-powered environments.

[0059] The guide is used to guide the vertical movement of the transmission frame 5 relative to the upright frame 6. Any structure in the prior art that can achieve this function can be used as the guide in this embodiment.

[0060] In this embodiment, when the transmission frame 5 needs to move vertically, the worker can rotate the drive screw 8 to drive the transmission frame 5 to move vertically upward or downward. The drive screw 8 can rotate in both directions, thereby changing the direction of movement of the transmission frame 5; please refer to Figure 4 As the transmission frame 5 moves vertically downward from a position away from the transmission block 4, the surfaces of the two pushers on their respective sides push the two transmission blocks 4 in a direction closer to each other. Finally, the inclined surfaces on the two transmission blocks 4 press against the two chamfered positions above the steel G, cooperating with the two positioning seats 2 to clamp the steel G, thus obtaining… Figure 4The state; and when the steel G is clamped, the transmission block 4 reacts the force clamping the steel G to the transmission frame 5, and the transmission frame 5 gives the drive screw 8 an upward compressive force, so that the thread on the outer wall of the drive screw 8 and the thread of the threaded hole 701 are axially compressed, and the steel G can be stably clamped without the action of external force; when the steel G needs to be released after the inspection, the drive transmission frame 5 moves upward, at this time the force that makes the two transmission blocks 4 close to each other is removed, and the worker can manually push the two transmission blocks 4 away from each other to obtain Figure 5 In this state, the steel G can be lifted upwards. Alternatively, after the force on the two transmission blocks 4 is removed, the steel G can be lifted upwards directly. During this process, the steel G will push the two transmission blocks 4 away from each other, making the removal of the part more efficient.

[0061] In this embodiment, please refer to Figure 5 When the transmission frame 5 is separated from the two transmission blocks 4, the lowest point of the two pushers is always lower than the highest point of the inclined surface of the transmission block 4, which ensures that the two transmission blocks 4 are always within the driving range of the transmission frame 5.

[0062] Example 3

[0063] Based on Embodiment 1, this embodiment also discloses a structure for the guide component;

[0064] In this embodiment, the guide includes a guide hole 10 and a guide rod 11;

[0065] Please see Figure 1 or Figure 2 The guide hole 10 is set on the horizontal section 7 and passes through the upper and lower surfaces of the horizontal section 7; the guide rod 11 is coaxially distributed with the guide hole 10 and vertically slidably connected, and one end of the guide rod 11 is connected to the transmission frame 5.

[0066] When the drive screw 8 applies a helical force to the transmission frame 5, the guide rod 11 cooperates with the guide hole 10 to restrict the rotation of the transmission frame 5, so that the helical force of the drive screw 8 on the transmission frame 5 is decomposed into a rotational force and a vertical component. The rotational force is consumed by the rotational connection between the drive screw 8 and the transmission frame 5, thereby realizing the vertical movement of the transmission frame 5.

[0067] In this embodiment, guide rods 11 and guide holes 10 are provided on both sides of the drive screw 8, so that the force on the transmission frame 5 and the horizontal section 7 is more uniform and the lifting and lowering of the transmission frame 5 is more stable.

[0068] Example 4

[0069] Based on Embodiment 1, this embodiment also discloses a sliding structure between the clamping block 3 and the base 1;

[0070] In this embodiment, please refer to Figure 1 or Figure 2 The base 1 has two sets of sliding grooves 12 spaced apart along the first direction X for each clamping block 3. Each set of sliding grooves 12 has a sliding column 13 slidably arranged along the second direction Y. The two sliding columns 13 are respectively connected to the two side walls of the clamping block 3.

[0071] In this embodiment, each clamping block 3 is provided with a sliding post 13 and a sliding groove 12 on both sides, so that the clamping block 3 slides smoothly and improves the clamping reliability.

[0072] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An auxiliary fixture for inspecting steel welds, characterized in that, It includes a base (1) and two sets of clamping mechanisms spaced apart along a first direction (X), each set of clamping mechanisms including: Two positioning seats (2) are provided on the base (1). The two positioning seats (2) are symmetrically distributed in the second direction (Y). The surfaces of the two positioning seats (2) that contact the steel (G) are inclined surfaces. Two clamping blocks (3) are slidably disposed on the base (1) along the second direction (Y). The two clamping blocks (3) are respectively located above the two positioning seats (2). The surfaces of the two clamping blocks (3) that contact the steel (G) are inclined surfaces. A transmission mechanism that can simultaneously drive the two clamping blocks (3) to move closer to each other; The two sets of clamping mechanisms respectively clamp the two ends of the steel (G).

2. The auxiliary fixture for inspecting steel welds according to claim 1, characterized in that, The transmission mechanism includes: Two transmission blocks (4) are symmetrically arranged on two clamping blocks (3), and the surfaces of the two transmission blocks (4) that are far apart from each other are inclined surfaces; The transmission frame (5) has two push pins spaced apart in the second direction (Y), and the surfaces of the two push pins that are close to each other are in contact with the surfaces of the two transmission blocks (4) that are far apart from each other. A driving component is used to drive the transmission frame (5) to move vertically.

3. The auxiliary fixture for inspecting steel welds according to claim 2, characterized in that: The surface of the pusher that contacts the transmission block (4) is an inclined surface adapted to the transmission block (4).

4. The auxiliary fixture for inspecting steel welds according to claim 2, characterized in that, The driving component includes: A support frame (6) is mounted on the base (1). The support frame (6) has a horizontal section (7) located above the transmission frame (5). The horizontal section (7) is provided with threaded holes (701) penetrating its upper and lower surfaces. A drive screw (8) is coaxially distributed and threadedly connected to the threaded hole (701). One end of the drive screw (8) is rotatably connected to the transmission frame (5), and the other end of the drive screw (8) is located above the upright frame (6). A guide member is provided for guiding the transmission frame (5) to move vertically relative to the upright frame (6).

5. The auxiliary fixture for inspecting steel welds according to claim 4, characterized in that: A manual lever (9) is provided at the end of the drive screw (8) away from the transmission frame (5).

6. The auxiliary fixture for inspecting steel welds according to claim 4, characterized in that, The guide component includes: A guide hole (10) is provided on the horizontal section (7) and the guide hole (10) penetrates the upper and lower surfaces of the horizontal section (7); Guide rod (11) is coaxially distributed with the guide hole (10) and vertically slidably connected. One end of the guide rod (11) is connected to the transmission frame (5).

7. The auxiliary fixture for inspecting steel welds according to claim 1, characterized in that: The positioning seat (2) is detachably connected to the base (1).

8. The auxiliary fixture for inspecting steel welds according to claim 1, characterized in that: The base (1) is provided with two sets of sliding grooves (12) at intervals along the first direction (X) corresponding to each clamping block (3). Each of the two sets of sliding grooves (12) is provided with a sliding column (13) sliding along the second direction (Y). The two sliding columns (13) are respectively connected to the two side walls of the clamping block (3).

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