Punching mechanism for cross arm production

Abstract

The utility model discloses a punching mechanism for cross arm production belongs to cross arm punching equipment field, including clamping structure, clamping plate, base, baffle, door type frame, auxiliary structure. The utility model utilizes base as the base platform, and the long side of cross arm is clamped from two sides by two clamping plates driven by clamping structure, and it is guaranteed that clamping plate can provide stable and balanced clamping force. When punching the cross arm of the asymmetric section of angle steel, the auxiliary structure is operated, the output end is stretched forward until tightly abuts the vertical edge of angle steel, thereby providing additional constraint force from the side, effectively preventing the workpiece from twisting or warping when punching, ensuring the stability and accuracy of the machining process, making the punch uniform and symmetrical in the moment of penetrating the metal, greatly reducing the eccentric load, lateral friction and impact vibration, thereby reducing the risk of abnormal wear, chipping and even fracture of the punch, prolonging the service life of the punch.

Description

Technical Field

[0001] This utility model relates to the field of crossarm punching equipment, and in particular to a punching mechanism for crossarm production. Background Technology

[0002] Metal crossarms are widely used as important structural components in fields such as power transmission, communication base stations, and building support, for fixing and supporting cables, wires, and other auxiliary equipment. Crossarms come in various materials and structural forms, with angle steel being the most common crossarm material in traditional applications due to its low cost, ease of processing, and good mechanical properties.

[0003] In the manufacturing process of crossarms, punching is a crucial step, as its quality directly affects the positioning accuracy and connection reliability during subsequent installation. Traditional crossarm punching processes, especially for angle steel crossarms, typically involve placing the workpiece on a simple base on the punch press table and using a clamping device for initial positioning and fixation. However, angle steel, as an asymmetrical cross-section profile, has an L-shaped cross-section with only one long side and one vertical side (vertical plane). This structural characteristic causes complex stresses to be generated at the moment of contact between the impact head and the material during punching. The angle steel is prone to slight warping or overall slippage towards the side without vertical support, using the clamped long side as an axis. This instability not only leads to deviations in the punching position, affecting machining accuracy, but in severe cases, it can even cause the punch to chip or wear prematurely due to uneven stress. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art by designing a punching mechanism for crossarm production.

[0005] The technical solution of this utility model to achieve the above objectives is a punching mechanism for crossbeam production, including a clamping structure, a clamping plate, a base, a baffle, a portal frame, and an auxiliary structure. The clamping structure is equipped with a clamping plate, which is slidably mounted on the base. Two baffles are mounted on the base, one of which is fixed on the base and the other is slidably mounted on the clamping plate and connected to the base by bolts. The clamping structure is installed inside the base and is used to drive the clamping plate to move towards the center. The portal frame is slidably mounted on the base, and the punching machine is installed at the center of the portal frame; The auxiliary structure is installed on the clamping plate, with at least two on each clamping plate, to prevent the crossbeam from moving out of its current position during punching.

[0006] Preferably, the clamping structure includes a drive motor, a connecting shaft, a worm gear, a worm wheel, and a double-ended threaded rod. The drive motor is fixed on the base and its output end is fixedly connected to the connecting shaft. The connecting shaft is rotatably installed inside the base. The worm gear is fixed on the connecting shaft. The worm wheel is meshed with the worm gear. The worm wheel is fixed on the double-ended threaded rod. The double-ended threaded rod is rotatably installed on the base. The thread directions at both ends of the double-ended threaded rod are opposite. The two clamping plates are respectively meshed with both sides of the double-ended threaded rod.

[0007] Preferably, the auxiliary structure includes a T-shaped slider, a push rod, a positioning rod, connecting teeth, and a spring. The T-shaped slider is slidably mounted on the clamping plate. The push rod is slidably inserted into the T-shaped slider. The positioning rod is slidably inserted into the T-shaped slider. Connecting teeth are fixedly provided at the lower end of the positioning rod near the push rod and at the upper side of the push rod near the positioning rod, respectively. The connecting teeth on the positioning rod and the push rod mesh with each other. The spring is located inside the slider and is fitted onto the push rod. One end of the spring is fixed to the push rod, and the other end is fixed to the slider.

[0008] Preferably, the base is provided with lifting legs, which are fixed at the four corners of the base.

[0009] Preferably, the base is provided with a scale plate, which is fixed on the base and parallel to the clamping plate.

[0010] Preferably, the gate frame is provided with a control panel, which is fixed to the side of the gate frame.

[0011] Preferably, the top rod is provided with a rubber pad, which is fixed on the top rod near the crossbeam.

[0012] In summary, this utility model provides a punching mechanism for crossarm production, which has the following beneficial effects: Through its structural design, this device uses a base as a basic platform, on which two clamping plates that can move synchronously in opposite directions are set. The clamping structure drives these two clamping plates to clamp the long side of the crossarm from both sides, ensuring that the clamping plates can provide a stable and balanced clamping force.

[0013] When punching crossbeams with asymmetrical cross sections like angle steel, the auxiliary structure is operated so that its output end extends forward until it is tightly pressed against the vertical edge of the angle steel. This provides additional lateral constraint, effectively preventing the workpiece from twisting or tilting during punching. This ensures the stability and precision of the processing and makes the punch bear force evenly and symmetrically at the moment of metal penetration. This greatly reduces off-center load, lateral friction, and impact vibration, thereby reducing the risk of abnormal wear, chipping, or even breakage of the punch and extending its service life. Attached Figure Description

[0014] Figure 1This is a three-dimensional structural schematic diagram of a punching mechanism for crossarm production according to the present invention; Figure 2 This is a top view of the punching mechanism for crossarm production described in this utility model; Figure 3 This is a side view of the punching mechanism for crossarm production described in this utility model; Figure 4 This is a front structural schematic diagram of a punching mechanism for crossarm production according to the present invention; Figure 5 This is a front cross-sectional view of a punching mechanism for crossarm production according to the present invention; Figure 6 This is a cross-sectional schematic diagram of the auxiliary structure described in this utility model.

[0015] In the diagram, 1. Clamping structure; 2. Clamping plate; 3. Base; 4. Baffle; 5. Gate frame; 6. Auxiliary structure; 7. Lifting leg; 8. Scale plate; 9. Control board; 10. Rubber pad; 11. Drive motor; 12. Connecting shaft; 13. Worm gear; 14. Worm wheel; 15. Double-ended threaded rod; 61. T-shaped slider; 62. Top rod; 63. Positioning rod; 64. Connecting tooth; 65. Spring. 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] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figure 1-6 This utility model provides a technical solution: a punching mechanism for crossbeam production, including a clamping structure 1, a clamping plate 2, a base 3, a baffle 4, a portal frame 5, and an auxiliary structure 6. The clamping structure 1 is equipped with a clamping plate 2, which is slidably mounted on the base 3. Two baffles 4 are mounted on the base 3, one of which is fixed on the base 3, and the other is slidably mounted on the clamping plate 2 and connected to the base 3 by bolts. The clamping structure 1 is installed inside the base 3 and is used to drive the clamping plate 2 to move towards the center. The portal frame 5 is slidably mounted on the base 3, and the punching machine is installed at the center of the portal frame 5. Auxiliary structure 6, installed on clamping plate 2, with at least two on each clamping plate 2, is used to prevent the crossbeam from falling out of its current position during punching.

[0020] In this utility model, the clamping structure 1 includes a drive motor 11, a connecting shaft 12, a worm 13, a worm wheel 14, and a double-ended threaded rod 15. The drive motor 11 is fixed on the base 3 and its output end is fixedly connected to the connecting shaft 12. The connecting shaft 12 is rotatably installed inside the base 3. The worm 13 is fixed on the connecting shaft 12. The worm wheel 14 is meshed with the worm 13. The worm wheel 14 is fixed on the double-ended threaded rod 15. The double-ended threaded rod 15 is rotatably installed on the base 3. The thread directions at both ends of the double-ended threaded rod 15 are opposite. Two clamping plates 2 are respectively meshed with both sides of the double-ended threaded rod 15.

[0021] In this utility model, the auxiliary structure 6 includes a T-shaped slider 61, a push rod 62, a positioning rod 63, a connecting tooth 64, and a spring 65. The T-shaped slider 61 is slidably mounted on the clamping plate 2. The push rod 62 is slidably inserted into the T-shaped slider 61. The positioning rod 63 is slidably inserted into the T-shaped slider 61. The lower end of the positioning rod 63 near the push rod 62 and the upper side of the push rod 62 near the positioning rod 63 are respectively fixed with connecting teeth 64. The positioning rod 63 and the connecting teeth 64 on the push rod 62 mesh with each other. The spring 65 is located inside the slider and is fitted onto the push rod 62. One end of the spring 65 is fixed onto the push rod 62, and the other end is fixed onto the slider. Before punching, press the push rod 62 in the auxiliary structure 6 to press it against the vertical edge of the crossarm until the end of the push rod 62 is in contact with the vertical edge of the crossarm. Then release the push rod 62, and the connecting tooth 64 at the end of the positioning rod 63 will engage with the connecting tooth 64 at the end of the push rod 62 to prevent the push rod 62 from springing back. At this time, the push rod 62 fixes the vertical edge of the crossarm, preventing the crossarm from detaching towards the side without a vertical surface when punching. This makes the crossarm more stably fixed to the base 3. After punching is completed, pull up the positioning rod 63, and the connecting tooth 64 at the lower end of the positioning rod 63 will separate from the connecting tooth 64 on the upper side of the push rod 62. At this time, under the elastic action of the spring 65, the push rod 62 will move back to the side of the T-shaped slider 61 away from the crossarm, ready for the next use.

[0022] In this invention, a lifting leg 7 is provided below the base 3, and the lifting leg 7 is fixed at the four corners below the base 3. By using the lifting leg 7 located below the base 3, the height of the base 3 can be adjusted so that the height of the base 3 can match the height of the operator, making it convenient for the operator to operate.

[0023] In this invention, a scale plate 8 is provided on the base 3, and the scale plate 8 is fixed on the base 3 and parallel to the clamping plate 2. Through the scale plate 8 on the base 3, the length can be presented to the workers more intuitively, without the need for workers to confirm the punching position using other auxiliary tools such as measuring tapes.

[0024] In this invention, a control plate 9 is provided on the portal frame 5, and the control plate 9 is fixed to the side of the portal frame 5. When punching holes, the operator needs to stand at the portal frame 5, and the control plate 9 located on the portal frame 5 facilitates the operator's operation.

[0025] In this invention, a rubber pad 10 is provided on the top rod 62, and the rubber pad 10 is fixed on the top rod 62 near the crossarm. The rubber pad 10 on the top rod 62 can reduce the friction of the top rod 62 when fixing the crossarm.

[0026] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0027] In this embodiment: when punching holes in a crossbeam made of angle steel in the conventional technique, the crossbeam is placed between two clamping plates 2 above the base 3. Both ends of the crossbeam are also located between two baffles 4.

[0028] First, move the baffle 4 that is slidably connected to the clamping plate 2. When both the fixed baffle 4 and the sliding baffle 4 are in close contact with the short side of the crossarm, rotate the bolt to fix the sliding baffle 4 to the base 3. Then, the clamping structure 1 can drive the clamping plate 2 to clamp the long side of the crossarm. The height of the base 3 can be adjusted by the lifting leg 7 located below the base 3 so that the height of the base 3 can match the height of the operator, making it convenient for the operator to operate.

[0029] The drive motor 11 in the clamping structure 1 drives the connecting shaft 12 to rotate. The rotation of the connecting shaft 12 drives the worm gear 13 on the connecting shaft 12 to rotate. The rotation of the worm gear 13 drives the worm wheel 14 that meshes with it to rotate together with the rotation of the worm gear 13. The rotation of the worm wheel 14 drives the double-ended threaded rod 15 to rotate in the base 3. The rotation of the double-ended threaded rod 15 drives the clamping plates 2 at both ends to slide inward on the base 3 at the same time to complete the initial clamping of the crossarm.

[0030] After the clamping plate 2 has initially clamped the crossarm, the auxiliary structure 6 on the clamping plate 2 furthest from the vertical edge is slid to prevent the auxiliary structure 6 from interfering with the punching position. The length can be presented to the operator more intuitively through the scale plate 8 on the base 3, eliminating the need for the operator to confirm the punching position using measuring tape or other auxiliary tools.

[0031] Press the push rod 62 in the auxiliary structure 6 to press it against the vertical edge of the crossarm until the end of the push rod 62 is in contact with the vertical edge of the crossarm. Release the push rod 62, and the connecting teeth 64 at the end of the positioning rod 63 will engage with the connecting teeth 64 at the end of the push rod 62 to prevent the push rod 62 from springing back. At this time, the push rod 62 fixes the vertical edge of the crossarm, preventing the crossarm from detaching towards the side without a vertical surface when punching holes in the crossarm. This makes the crossarm more stably fixed to the base 3. When the crossarm is punched, the stable crossarm can improve the processing accuracy of the punching and reduce the wear on the impact head. The rubber pad 10 located on the push rod 62 can reduce the friction of the push rod 62 when fixing the crossarm.

[0032] During punching, the position of the portal frame 5 on the base 3 is moved so that the punching machine on the portal frame 5 corresponds to the position on the crossarm that needs to be punched. Then, the punching machine is started to complete the punching of the crossarm. The control panel 9 located on the portal frame 5 moves along with the portal frame 5 and the operator. During punching, the operator needs to stand on the portal frame 5; the control panel 9 on the portal frame 5 facilitates operation.

[0033] After punching is completed, pull up the positioning rod 63, and the connecting tooth 64 at the lower end of the positioning rod 63 separates from the connecting tooth 64 on the upper side of the push rod 62. At this time, under the elastic action of the spring 65, the push rod 62 is moved back to the side of the T-shaped slider 61 away from the crossarm, ready for the next use.

[0034] When clamping crossarms with vertical surfaces on both sides, such as square steel and channel steel, there is no need to worry about the side-tipping phenomenon that is prone to occur with angle steel, which has only one vertical surface. It is sufficient to clamp the crossarm with clamping plate 2, without the need for secondary fixation by auxiliary structure 6.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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 punching mechanism for crossbeam production, comprising a clamping structure (1), a clamping plate (2), a base (3), a baffle (4), a portal frame (5), and an auxiliary structure (6), characterized in that, The clamping structure (1) is equipped with a clamping plate (2), which is slidably mounted on the base (3). Two baffles (4) are mounted on the base (3), one of which is fixed on the base (3) and the other is slidably mounted on the clamping plate (2) and connected to the base (3) by bolts. The clamping structure (1) is installed inside the base (3) and is used to drive the clamping plate (2) to move in the center direction; The portal frame (5) is slidably mounted on the base (3), and the punching machine is installed at the center of the portal frame (5); The auxiliary structure (6) is installed on the clamping plate (2), with at least two on each clamping plate (2), to prevent the crossbeam from leaving its current position during punching.

2. The punching mechanism for crossarm production according to claim 1, characterized in that, The clamping structure (1) includes a drive motor (11), a connecting shaft (12), a worm (13), a worm wheel (14), and a double-ended threaded rod (15). The drive motor (11) is fixed on the base (3) and its output end is fixedly connected to the connecting shaft (12). The connecting shaft (12) is rotatably installed inside the base (3). The worm (13) is fixed on the connecting shaft (12). The worm wheel (14) is meshed with the worm (13). The worm wheel (14) is fixed on the double-ended threaded rod (15). The double-ended threaded rod (15) is rotatably installed on the base (3). The threads at both ends of the double-ended threaded rod (15) are opposite in direction. The two clamping plates (2) are meshed and connected to both sides of the double-ended threaded rod (15).

3. The punching mechanism for crossarm production according to claim 1, characterized in that, The auxiliary structure (6) includes a T-shaped slider (61), a top rod (62), a positioning rod (63), a connecting tooth (64), and a spring (65). The T-shaped slider (61) is slidably mounted on the clamping plate (2). The top rod (62) is slidably inserted into the T-shaped slider (61). The positioning rod (63) is slidably inserted into the T-shaped slider (61). The lower end of the positioning rod (63) near the top rod (62) and the upper side of the top rod (62) near the positioning rod (63) are respectively fixed with connecting teeth (64). The connecting teeth (64) on the positioning rod (63) and the top rod (62) mesh with each other. The spring (65) is located inside the slider and is fitted onto the top rod (62). One end of the spring (65) is fixed onto the top rod (62), and the other end is fixed onto the slider.

4. The punching mechanism for crossarm production according to claim 1, characterized in that, The base (3) is provided with lifting legs (7) below it, and the lifting legs (7) are fixed at the four corners below the base (3).

5. The punching mechanism for crossarm production according to claim 1, characterized in that, The base (3) is provided with a scale plate (8), which is fixed on the base (3) and parallel to the clamping plate (2).

6. The punching mechanism for crossarm production according to claim 1, characterized in that, The gate frame (5) is provided with a control panel (9), which is fixed to the side of the gate frame (5).

7. The punching mechanism for crossarm production according to claim 3, characterized in that, A rubber pad (10) is provided on the top rod (62), and the rubber pad (10) is fixed on the top rod (62) near the crossbeam.

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