Positioning tool for punching in steel structure production

Abstract

The utility model relates to the technical field of steel structures, in particular to a positioning tool for steel structure production punching, which comprises a support base, a positioning mounting table and two groups of positioning mounting racks, the positioning mounting table is fixedly mounted above the support base, and the two groups of positioning mounting racks are both positioned above the positioning mounting table. According to the positioning tool for steel structure production punching, the abutting limiting assembly with the damping function is arranged, the double damping effect of hydraulic buffering and elastic reset is formed in the steel plate pushing process, and therefore direct impact force between a steel plate and the tool is relieved; the front section is provided with an arc-shaped chamfer to guide a steel plate to enter smoothly, and the rear section is embedded with a friction pad for increasing the friction force of a contact surface and preventing the steel plate from sliding, so that not only are the problems of scratching and deviation avoided, but also the static stability of the steel plate before punching is improved, and the subsequent machining precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and in particular to a positioning fixture for punching holes in steel structure production. Background Technology

[0002] Steel structures are building or engineering structures assembled using steel as the main material through welding, bolting, or riveting. The positioning fixture for punching in steel structure production is an auxiliary device used for precise processing and positioning of steel components, such as steel plates and steel beams, during the punching process.

[0003] Existing positioning fixtures for punching steel structures generally adopt fixed support structures, which cannot accurately adjust the height or spacing according to steel plates of different sizes, affecting positioning accuracy and applicability. At the same time, during the loading and punching process of steel plates, existing equipment is mostly not equipped with shock absorption or buffering mechanisms. Rigid contact can easily cause scratches and displacement on the steel surface, affecting subsequent processes.

[0004] Therefore, addressing the issues of fixed support structures, inflexible adjustment, and lack of buffer structures in the positioning fixtures used for punching steel structures, which easily lead to workpiece damage, this utility model achieves dual adjustability of the positioning mounting frame in both the height and horizontal directions by setting up support adjustment components and spacing adjustment components. Simultaneously, by setting up a damping-function contact limiting component, composed of a limiting cylinder, a limiting piston rod, built-in damping fluid, and a spring, a dual shock absorption effect of hydraulic buffering and elastic reset is formed during the steel plate advancement process, thereby mitigating the direct impact force between the steel plate and the fixture. Utility Model Content

[0005] To overcome the common problems of fixed positioning tooling support structure in steel structure punching production, which cannot be flexibly adjusted and lacks a buffer structure, thus easily causing workpiece damage.

[0006] The technical solution of this utility model is: a positioning fixture for punching steel structure production, including a support base, a positioning mounting platform and a positioning mounting frame. The positioning mounting platform is fixedly installed above the support base. The top outer wall of the support base is symmetrically provided with two sets of columnar mounting grooves. There are two sets of positioning mounting frames, and both sets of positioning mounting frames are located above the positioning mounting platform.

[0007] Both sets of positioning mounting frames are provided with support adjustment components on their sides, and both sets of positioning mounting frames are provided with abutment and limiting components at their bottom. The positioning mounting platform is provided with a spacing adjustment component inside.

[0008] Preferably, the support adjustment assembly includes a limiting support frame, a handwheel, and a threaded rod. Two sets of limiting support frames are provided, and both sets of limiting support frames are slidably installed above the support base. The limiting support frame is configured as a horizontal "U"-shaped structure, and a handwheel is rotatably installed on the top outer wall of the limiting support frame. The bottom outer wall of the handwheel is connected to the top outer wall of the threaded rod, and the bottom outer wall of the threaded rod is rotatably installed on the bottom inner wall of the limiting support frame. The positioning mounting bracket is threaded through and installed on the outside of the threaded rod.

[0009] Preferably, a positioning T-shaped block is provided on the outer side wall of the threaded rod near the position of the limiting support frame, and a positioning T-shaped groove is correspondingly provided on the inner side wall of the limiting support frame for sliding installation of the positioning T-shaped block.

[0010] Preferably, the abutment limiting assembly includes a limiting cylinder, a limiting piston rod, an abutment spring, and an abutment seat. The limiting cylinder is embedded in the bottom outer wall of the positioning mounting bracket. The limiting piston rod is slidably installed inside the limiting cylinder. An abutment spring is connected between the top outer wall of the limiting piston rod and the top inner wall of the limiting cylinder. The protruding end of the limiting piston rod is located below the limiting cylinder, and the protruding end of the limiting piston rod is connected to the top outer wall of the abutment seat.

[0011] Preferably, the abutment is composed of a front guide portion and a rear abutment portion. The outer side wall of the abutment at the guide portion position is provided with an arc-shaped chamfer, and a friction pad is embedded in the outer bottom wall of the abutment at the abutment portion position.

[0012] Preferably, the limiting cylinder is filled with damping fluid, and the top outer wall of the limiting piston rod located at the piston disc position is provided with an overflow groove that runs through it circumferentially.

[0013] Preferably, the spacing adjustment component includes a limiting member and a limiting groove. The two sets of limiting support frames are provided with limiting members on the outer side walls near the positioning mounting platform. The limiting member is set as a horizontal "L" shaped structure. The positioning mounting platform has a corresponding limiting groove for the limiting member to slide and install.

[0014] Preferably, the top outer wall of the positioning mounting platform is provided with a first set of cylindrical through grooves at equal intervals, and the top outer wall of the limiting member is provided with a second set of cylindrical through grooves. Fastening bolts are inserted into the interior of the two sets of cylindrical through grooves. The interior of the positioning mounting platform is provided with corresponding cylindrical thread grooves for threaded installation of the fastening bolts, and the internal space of the cylindrical thread grooves and the cylindrical through grooves are connected.

[0015] The beneficial effects of this utility model are:

[0016] 1. When using this steel structure punching positioning fixture, the support adjustment component and the spacing adjustment component are set up to achieve dual adjustability of the positioning mounting frame in both the height and horizontal directions. Among them, the lifting mechanism composed of threaded rod and handwheel allows the operator to accurately adjust the support height according to the thickness of the steel plate. At the same time, the spacing locking mechanism composed of limit component and slide groove allows the lateral spacing between the two sets of mounting frames to be quickly adjusted and firmly fixed according to the length of the steel plate, thereby improving the adaptability of the positioning fixture to steel components of different specifications and the punching positioning accuracy.

[0017] 2. When using the positioning fixture for punching in this steel structure production, a damping-function abutment and limiting component is set up. This component consists of a limiting cylinder, a limiting piston rod, built-in damping fluid, and a spring. During the steel plate's advancement, it forms a dual shock absorption effect of hydraulic buffering and elastic reset, thereby alleviating the direct impact force between the steel plate and the fixture. At the same time, the abutment seat adopts a front-guided and rear-limiting structural design. The front section has an arc-shaped chamfer to guide the steel plate to enter smoothly, while the rear section is embedded with a friction pad to increase the friction of the contact surface and prevent the steel plate from slipping. This not only avoids scratches and deviations but also improves the static stability of the steel plate before punching, ensuring the accuracy of subsequent processing. Attached Figure Description

[0018] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0019] Figure 2 The diagram shown is a three-dimensional structural illustration of the positioning mounting frame and the limiting support frame of this utility model.

[0020] Figure 3 The diagram shown is a three-dimensional structural diagram of the mounting structure of the contact seat and friction pad of this utility model;

[0021] Figure 4 This utility model is shown. Figure 3 Enlarged 3D structural diagram at point A;

[0022] Figure 5 The diagram shown is a three-dimensional structural diagram of the positioning mounting platform and limiting support frame of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Positioning mounting platform; 3. Positioning mounting bracket; 4. Support adjustment assembly; 401. Limiting support bracket; 402. Handwheel; 403. Threaded rod; 404. Positioning T-block; 405. Positioning T-slot; 5. Abutment limiting assembly; 501. Limiting cylinder; 502. Limiting piston rod; 503. Abutment spring; 504. Abutment seat; 505. Friction pad; 6. Spacing adjustment assembly; 601. Limiting component; 602. Limiting slide; 603. Cylindrical through groove; 604. Cylindrical threaded groove; 605. Fastening bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a positioning fixture for punching steel structure production, including a support base 1, a positioning mounting platform 2 and a positioning mounting frame 3. The positioning mounting platform 2 is fixedly installed above the support base 1. The top outer wall of the support base 1 is symmetrically provided with two sets of columnar mounting grooves. Two sets of positioning mounting frames 3 are provided, and both sets of positioning mounting frames 3 are located above the positioning mounting platform 2.

[0026] Both sets of positioning mounting brackets 3 are equipped with support adjustment components 4 on their sides, and both sets of positioning mounting brackets 3 are equipped with abutment limit components 5 at their bottom. The positioning mounting platform 2 is equipped with a spacing adjustment component 6 inside.

[0027] The support adjustment assembly 4 includes a limiting support frame 401, a handwheel 402, and a threaded rod 403. Two sets of limiting support frames 401 are provided, and both sets of limiting support frames 401 are slidably installed above the support base 1. The limiting support frame 401 is configured as a horizontal "U"-shaped structure, and the handwheel 402 is rotatably installed on the top outer wall of the limiting support frame 401. The bottom outer wall of the handwheel 402 is connected to the top outer wall of the threaded rod 403. The bottom outer wall of the threaded rod 403 is rotatably installed on the bottom inner wall of the limiting support frame 401. The positioning mounting bracket 3 is threaded through and installed on the outside of the threaded rod 403. A positioning T-shaped block 404 is provided on the side outer wall of the threaded rod 403 near the position of the limiting support frame 401. A positioning T-shaped groove 405 is correspondingly opened on the side inner wall of the limiting support frame 401 for the positioning T-shaped block 404 to slide and install.

[0028] The positioning T-block 404 and positioning T-slot 405 here provide a limiting support for the positioning mounting bracket 3, so that when the threaded rod 403 rotates, it can only drive the positioning mounting bracket 3 to achieve a vertical sliding trajectory.

[0029] The abutment limiting assembly 5 includes a limiting cylinder 501, a limiting piston rod 502, an abutment spring 503, and an abutment seat 504. The limiting cylinder 501 is embedded in the bottom outer wall of the positioning mounting bracket 3. The limiting piston rod 502 is slidably installed inside the limiting cylinder 501. The abutment spring 503 is connected between the top outer wall of the limiting piston rod 502 and the top inner wall of the limiting cylinder 501. The protruding end of the limiting piston rod 502 is located below the limiting cylinder 501 and limits the movement of the piston rod. The extended end of the piston rod 502 is connected to the top outer wall of the contact seat 504. The contact seat 504 is composed of a front guide part and a rear contact part. The outer wall of the side of the contact seat 504 at the guide part position is provided with an arc-shaped chamfer. The bottom outer wall of the contact seat 504 at the contact part position is embedded with a friction pad 505. The inside of the limiting cylinder 501 is filled with damping fluid. The top outer wall of the limiting piston rod 502 at the piston disc position is circumferentially provided with an overflow groove.

[0030] The curved chamfer here makes it easier to push the steel plate under the contact seat 504 for contact support and limiting when it is positioned above the device. The damping fluid, together with the overflow groove, has a speed-reducing and buffering effect on the limiting piston rod 502. The incompressibility of the liquid extends the overall durability of the device.

[0031] The spacing adjustment component 6 includes a limiting member 601 and a limiting groove 602. The two sets of limiting support frames 401 are provided with limiting members 601 on the outer side walls near the positioning mounting platform 2. The limiting members 601 are configured as horizontal "L" shaped structures. The positioning mounting platform 2 is provided with a corresponding limiting groove 602 for the sliding installation of the limiting members 601. The top outer wall of the positioning mounting platform 2 is provided with a first set of cylindrical through grooves 603 at equal intervals. The top outer wall of the limiting members 601 is provided with a second set of cylindrical through grooves 603. Fastening bolts 605 are inserted into the two sets of cylindrical through grooves 603. The positioning mounting platform 2 is provided with a corresponding cylindrical thread groove 604 for the threaded installation of the fastening bolts 605, and the cylindrical thread groove 604 communicates with the internal space of the cylindrical through groove 603.

[0032] The limiting component 601 and the limiting slide 602 here enable the limiting support frame 401 to be more stably limited on the side of the positioning mounting platform 2 through the sliding limiting function.

[0033] Working principle: See Figure 5As shown, firstly, the two sets of positioning mounting brackets 3 need to be adjusted to a suitable support spacing according to the length of the steel plates in the same batch. During adjustment, the fastening bolts 605 need to be unscrewed from the inside of the cylindrical threaded groove 604, and then the limiting member 601 changes from the locked state to the movable state. Then, the limiting support bracket 401 is pulled directly to adjust it to the corresponding first set of cylindrical through grooves 603. When the limiting support bracket 401 moves, it will automatically drive the limiting member 601 to slide inside the limiting slide groove 602, thereby limiting and supporting the movement of the limiting support bracket 401. When it moves to the corresponding first set of cylindrical through grooves 603, the fastening bolts 605 are passed through the two sets of cylindrical through grooves 603 and screwed into the inside of the cylindrical threaded groove 604. This process can complete the re-locking and installation of the limiting support bracket 401, thus completing the spacing adjustment process of the two sets of positioning mounting brackets 3.

[0034] See Figures 1-2 As shown, the two sets of positioning mounting brackets 3 are then adjusted to a suitable support height according to the thickness of the steel plate. The adjustment is such that only the handwheel 402 needs to be turned, which will automatically drive the threaded rod 403 to rotate, thereby moving the positioning mounting bracket 3. Here, due to the limiting effect of the positioning T-block 404 and positioning T-slot 405 on the positioning mounting bracket 3, the threaded rod 403 will only drive the positioning mounting bracket 3 to achieve a vertical sliding trajectory when it rotates. When the positioning mounting bracket 3 moves to a suitable support height, that is, the abutment seat 504 at the lower end of the positioning mounting bracket 3 is in contact with the top outer wall of the positioning mounting platform 2, the handwheel 402 can then be stopped. It should be noted that the threaded rod 403 has a self-locking function. When it stops rotating, it can position the positioning mounting bracket 3 at the specified support height.

[0035] See Figures 3-4 As shown, when the steel plate needs to be positioned, the steel plate to be punched is simply pushed horizontally to the middle position of the two sets of contact seats 504. The contact seats 504 then move upward automatically under the pressure of the steel plate. When the contact seats 504 move upward, they will automatically drive the limiting piston rod 502 to slide inside the limiting cylinder 501. At this time, the damping fluid inside the limiting cylinder 501 flows from one side of the piston plate to the other side through the overflow groove. This process simultaneously slows down and buffers the limiting piston rod 502. At this time, the contact spring 503 is in a contracted state due to the pressure of the limiting piston rod 502. When the contact spring 503 is compressed, it will also generate a reaction force to push the limiting piston rod 502 to move. Then, the limiting piston rod 502 moves downward and automatically pushes the contact seat 504 to abut against the top outer wall of the steel plate to complete the limiting process of the steel plate. The friction pad 505 is set here to increase the contact friction between the device and the top outer wall of the steel plate, so that it can be positioned more stably above the device.

[0036] The subsequent punching process for the steel plate can be referenced from existing technical structures without any modifications. It is a conventional operating technique and will not be described in detail here.

[0037] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for punching of steel structure production, comprising a supporting base (1), a positioning installation table (2) and a positioning installation rack (3), characterized in that: The positioning mounting platform (2) is fixedly installed above the support base (1). The top outer wall of the support base (1) is symmetrically provided with two sets of columnar mounting slots. The positioning mounting frame (3) is provided with two sets, and both sets of positioning mounting frames (3) are located above the positioning mounting platform (2). Both sets of positioning mounting brackets (3) are provided with support adjustment components (4) on their sides, and both sets of positioning mounting brackets (3) are provided with abutment limit components (5) at their bottom. The positioning mounting platform (2) is provided with a spacing adjustment component (6) inside.

2. A positioning tool for punching a steel structure according to claim 1, characterized in that: The support adjustment assembly (4) includes a limiting support frame (401), a handwheel (402), and a threaded rod (403). Two sets of limiting support frames (401) are provided, and both sets of limiting support frames (401) are slidably installed above the support base (1). The limiting support frame (401) is configured as a horizontal "U"-shaped structure, and the handwheel (402) is rotatably installed on the top outer wall of the limiting support frame (401). The bottom outer wall of the handwheel (402) is connected to the top outer wall of the threaded rod (403). The bottom outer wall of the threaded rod (403) is rotatably installed on the bottom inner wall of the limiting support frame (401). The positioning mounting bracket (3) is threaded through and installed on the outside of the threaded rod (403).

3. A positioning tool for punching a steel structure according to claim 2, characterized in that: The threaded rod (403) is provided with a positioning T-shaped block (404) on the outer side wall near the limiting support frame (401), and the inner side wall of the limiting support frame (401) is provided with a positioning T-shaped groove (405) for the positioning T-shaped block (404) to be slidably installed.

4. A positioning tool for punching a steel structure as claimed in claim 1, characterized in that: The abutment limiting assembly (5) includes a limiting cylinder (501), a limiting piston rod (502), an abutment spring (503), and an abutment seat (504). The limiting cylinder (501) is embedded in the bottom outer wall of the positioning mounting bracket (3). The limiting piston rod (502) is slidably installed inside the limiting cylinder (501). The abutment spring (503) is connected between the top outer wall of the limiting piston rod (502) and the top inner wall of the limiting cylinder (501). The protruding end of the limiting piston rod (502) is located below the limiting cylinder (501), and the protruding end of the limiting piston rod (502) is connected to the top outer wall of the abutment seat (504).

5. A positioning tool for punching a steel structure according to claim 4, characterized in that: The abutment (504) is composed of a front guide part and a rear abutment part. The outer side wall of the abutment (504) at the guide part position is provided with an arc-shaped chamfer, and a friction pad (505) is embedded in the outer bottom wall of the abutment (504) at the abutment part position.

6. A positioning tool for punching a steel structure as claimed in claim 4, characterized in that: The limiting cylinder (501) is filled with damping fluid, and the limiting piston rod (502) has an overflow groove circumferentially opened on the top outer wall of the piston disc.

7. A positioning tool for punching a steel structure as claimed in claim 2, characterized in that: The spacing adjustment component (6) includes a limiting member (601) and a limiting groove (602). The two sets of limiting support frames (401) are provided with limiting members (601) on the outer side walls near the positioning mounting platform (2). The limiting member (601) is set as a horizontal "L" shaped structure. The positioning mounting platform (2) is provided with a corresponding limiting groove (602) for the limiting member (601) to slide.

8. A positioning tool for punching a steel structure according to claim 7, characterized in that: The top outer wall of the positioning mounting platform (2) is provided with a first set of cylindrical through grooves (603) at equal intervals. The top outer wall of the limiting member (601) is provided with a second set of cylindrical through grooves (603) that are aligned and penetrate through it. Fastening bolts (605) are inserted into the two sets of cylindrical through grooves (603). The interior of the positioning mounting platform (2) is provided with corresponding cylindrical thread grooves (604) for threaded installation of the fastening bolts (605), and the internal space of the cylindrical thread grooves (604) is connected to that of the cylindrical through grooves (603).

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