H-shaped profile clamping and positioning device

Abstract

The utility model relates to an H profile clamping and positioning device which comprises a machine frame, a plurality of clamping mechanisms are arranged on the machine frame side by side to form a clamping station, and each clamping mechanism comprises a fixed clamping part and a movable clamping part which are arranged on the machine frame side by side in the width direction of the clamping station. The movable clamping parts are movably arranged on the machine frame, the moving direction of the movable clamping parts is parallel to the width direction of the clamping station, the clamping faces of the movable clamping parts are opposite to the clamping faces of the fixed clamping parts, and the H-shaped profile clamping and positioning device further comprises a driving mechanism capable of driving the movable clamping parts to move synchronously. The driving mechanism is in driving connection with each movable clamping part, so that each movable clamping part is provided with a clamping position which is far away from the corresponding fixed clamping part to clamp the H-shaped profile and an unlocking position which is close to the corresponding fixed clamping part; according to the clamping and positioning device for the H-shaped section bar, the machining precision, the safety and the reliability are improved when the H-shaped section bar is cut.

Description

Technical Field

[0001] The utility model relates to the technical field of profile laser cutting, in particular to an H-profile clamping and positioning device. Background Art

[0002] For the processing of H-profiles, the raw materials are long and heavy, and it is not easy to accurately position them through lifting in daily life. The cutting process is likely to cause poor flatness of the material plate and large stress deformation, which in turn leads to large processing errors. Moreover, when laser cutting and separating H-profiles, the profiles are prone to interfere with and collide with the laser cutting device, which makes the laser cutting process have a high risk and affects the stability and reliability of the equipment. Utility Model Content

[0003] The main purpose of the utility model is to propose an H-profile clamping and positioning device, aiming to provide an H-profile clamping and positioning device, which improves the processing accuracy, safety and reliability when cutting the H-profile by clamping and positioning the H-profile before laser cutting.

[0004] To achieve the above-mentioned purpose, the utility model proposes an H-profile clamping and positioning device, comprising a frame, on which a plurality of clamping mechanisms are arranged side by side to form a clamping station, the clamping mechanism comprising a fixed clamping part and a movable clamping part arranged side by side on the frame along the width direction of the clamping station, the movable clamping part being movably arranged on the frame and its movable direction being parallel to the width direction of the clamping station, the clamping surface of the movable clamping part being opposite to the clamping surface of the fixed clamping part, the H-profile clamping and positioning device also comprises a driving mechanism capable of driving each of the movable clamping parts to move synchronously, the driving mechanism being drivingly connected to each of the movable clamping parts so that each of the movable clamping parts has a clamping position away from the corresponding fixed clamping part for clamping the H-profile and an unlocking position close to the corresponding fixed clamping part.

[0005] In some embodiments, grooves are provided on the clamping surfaces of the fixed clamping portion and the movable clamping portion.

[0006] In some embodiments, a mounting portion is provided on the top of the fixed clamping portion and the movable clamping portion, and two support members are provided side by side along the width direction of the clamping station, wherein one of the support members is provided at the top of each fixed clamping portion through each mounting portion, and the other support member is provided at the top of each movable clamping portion through each mounting portion.

[0007] In some embodiments, a plurality of supporting protrusions are provided at intervals on the top of the supporting member.

[0008] In some embodiments, the driving mechanism includes a driving unit and a plurality of transmission components for driving the movable clamping part to translate along the width direction of the clamping station, each movable clamping part is configured with one transmission component, and each of the above transmission components is connected to the driving unit.

[0009] In some embodiments, the transmission assembly includes a screw and a movable seat rotatably mounted on the frame, the axis of the screw is parallel to the width direction of the clamping station, the movable seat is screwed on the screw, and the movable clamping part is arranged on the movable seat.

[0010] In some embodiments, the transmission assembly further includes a guide structure for movably guiding the movable seat.

[0011] In some embodiments, the driving unit includes multiple T-type reducers, the number of the T-type reducers is the same as the number of the screw rods and they correspond one to one, the output shaft of each T-type reducer is connected to the corresponding screw rod, and the input shaft of each T-type reducer is distributed in sequence along the length direction of the clamping station, and each adjacent two input shafts are connected by a connecting rod, and the connecting rod is connected to a driving part for driving it to rotate around its axis.

[0012] In some embodiments, the driving unit includes a motor and a worm gear reducer, the output shaft of the motor is connected to the input shaft of the worm gear reducer, and the output shafts of the worm gear reducer are respectively connected to the corresponding connecting rods.

[0013] In some embodiments, the two side portions of the base along the width direction of the clamping station are hollowed out, and a protective cover is provided at the hollowed out portion.

[0014] The utility model has at least the following beneficial effects:

[0015] In the utility model, before the H-profile is placed on the clamping station, the movable clamping part is driven by the driving mechanism to move close to the fixed clamping part along the width direction of the clamping station, and then the H-profile is placed on the top of the fixed clamping part and the movable clamping part, and then the movable clamping part is driven to move away from the fixed clamping part to abut and clamp the two ends of the H-profile, thereby achieving the clamping and positioning effect, ensuring that the H-profile will not tilt and fall during the subsequent laser cutting process, thereby improving the processing accuracy, safety and reliability when cutting the H-profile. Secondly, a plurality of the clamping mechanisms are arranged at intervals along the length direction of the clamping station on the frame, which can not only avoid laser cutting, but also ensure that after the cutting is completed, each segment of the H-profile is still in a clamped and positioned state, further improving the safety. It is worth mentioning that the clamping surface of the movable clamping part in this scheme is opposite to the clamping surface of the fixed clamping part, and the clamping is completed by clamping the inner wall surface of the lower end of the H-profile. Compared with the method of clamping the outer wall surface, the clamping mechanism can directly provide a support plane for the H-profile without additional settings, and the required range of motion of the clamping mechanism is smaller, which can improve the integration of the device and reduce the design cost.

[0016] The utility model further has the following beneficial effects: because the movable stroke of the movable clamping part can be adjusted according to the size of the H-profile, the device can be applicable to H-profiles of different specifications and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of an H-profile clamping and positioning device provided in an embodiment of the utility model;

[0019] Figure 2 A schematic side view of the structure of an H-profile clamping and positioning device provided in an embodiment of the utility model;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the clamping mechanism;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the clamping mechanism (without the protective cover);

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the mobile seat.

[0023] Description of reference numerals:

[0024] 100-H profile clamping and positioning device; 1-frame; 11-clamping station; 2-clamping mechanism; 21-fixed clamping part; 22-movable clamping part; 3-driving mechanism; 31-transmission assembly; 311-screw rod; 312-moving seat; 313-guide structure; 32-driving unit; 321-T-type reducer; 322-connecting rod; 323-driving part; 3231-motor; 3232-worm gear reducer; 4-groove; 5-protective cover; 6-H profile; 7-installation part. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] At present, for the processing of H-profiles, the raw materials are long and heavy, and it is not easy to accurately position them through lifting in daily life. The cutting process is likely to cause poor flatness of the material plate and large stress deformation, which in turn leads to large processing errors. Moreover, when laser cutting and separating H-profiles, the profiles are prone to interfere with and collide with the laser cutting device, which makes the laser cutting process have a high risk and affects the stability and reliability of the equipment.

[0029] In view of this, the utility model provides an H-profile clamping and positioning device. Figure 1-Figure 5 The present invention provides a specific embodiment of the H-profile clamping and positioning device.

[0030] like Figure 1-Figure 3 As shown, an embodiment of the utility model provides an H-profile clamping and positioning device 100, comprising a frame 1, on which a plurality of clamping mechanisms 2 are arranged side by side to form a clamping station, the clamping mechanism 2 comprises a fixed clamping portion 21 and a movable clamping portion 22 which are arranged side by side on the frame 1 along the width direction of the clamping station, the movable clamping portion 22 is movably arranged on the frame 1 and its movable direction is parallel to the width direction of the clamping station, the clamping surface of the movable clamping portion 22 is opposite to the clamping surface of the fixed clamping portion 21, the H-profile clamping and positioning device 100 also comprises a driving mechanism 3 capable of driving each of the movable clamping portions 22 to move synchronously, the driving mechanism 3 is drivingly connected to each of the movable clamping portions 22 so that each of the movable clamping portions 22 has a clamping position away from the corresponding fixed clamping portion 21 to clamp the H-profile 6 and an unlocking position close to the corresponding fixed clamping portion.

[0031] In the utility model, before the H-profile 6 is placed on the clamping station 11, the movable clamping part 22 is driven by the driving mechanism 3 to move along the width direction of the clamping station 11 close to the fixed clamping part 21, and then the H-profile 6 is placed on the top of the fixed clamping part 21 and the movable clamping part 22, and then the movable clamping part 22 is driven to move away from the fixed clamping part 21, so that the two ends of the H-profile 6 are abutted and clamped and fixed, thereby achieving the clamping and positioning effect, ensuring that the H-profile will not tilt and fall during the subsequent laser cutting process, thereby improving the processing accuracy, safety and reliability when cutting the H-profile 6. Secondly, a plurality of the clamping mechanisms 2 are arranged at intervals along the length direction of the clamping station 11 on the frame 1, which can not only avoid laser cutting, but also ensure that after the cutting is completed, each segment of the H-profile 6 is still in a clamped and positioned state, further improving the safety. It is worth mentioning that the clamping surface of the movable clamping part 22 in this scheme is opposite to the clamping surface of the fixed clamping part 21, and the clamping is completed by clamping the inner wall surface of the lower end of the H-profile 6. Compared with the method of clamping the outer wall surface, the clamping mechanism 2 can directly provide a support plane for the H-profile 6 without the need for additional settings, and the required range of motion of the clamping mechanism 2 is smaller, which can improve the integration of the device.

[0032] Taking into account that the contact area between the clamping surfaces of the fixed clamping part 21 and the movable clamping part 22 and the H-profile 6 is too large and there is a large interference, in one embodiment, a groove 4 is provided on the clamping surfaces of the fixed clamping part 21 and the movable clamping part 22. Based on the above structure, the contact area can be reduced, the friction force can be reduced, and the service life can be extended.

[0033] When the H-profile 6 is placed in the clamping mechanism 2, the right-angle area of ​​the inner wall surface of the lower end thereof will directly contact the top of the fixed clamping part 21 and the movable clamping part 22. Taking into account factors such as processing errors, the right-angle area may interfere with the top of the fixed clamping part 21 and the movable clamping part 22. Therefore, in one embodiment, the top of the clamping surface of the fixed clamping part 21 and the movable clamping part 22 is provided with an oblique angle.

[0034] Specifically, the top of the fixed clamping part 21 and the movable clamping part 22 are both provided with a mounting part 7, and two support members are arranged side by side along the width direction of the clamping station, one of the support members is arranged on the top of each fixed clamping part 21 through each mounting part 7, and the other support member is arranged on the top of each movable clamping part 22 through each mounting part 7. In this way, each fixed clamping part 21 and each movable clamping part 22 are respectively associated with each other, thereby improving the stability and force coordination of the overall structure. Because each fixed clamping part 21 / movable clamping part 22 has a gap in the length direction of the clamping station, supporting the profile by the support member can further improve the support stability, and the support member can be detachably connected to each fixed clamping part 21 and each movable clamping part 22 through the mounting part 7, which is convenient for disassembly and replacement of support parts of different shapes / specifications, so that it can be suitable for steel sections of different shapes / specifications. It should also be noted that there is no specific restriction on the mounting portion 7. It only needs to be able to connect the support member and each of the fixed clamping portions 21 or each of the movable clamping portions 22. The mounting portion 7 can be in the form of a matching groove, a matching hole or a matching protrusion. For example, a matching groove can be used, and the matching groove can be connected to the matching protrusion protruding from the bottom of the support member.

[0035] Furthermore, a plurality of supporting protrusions are provided at intervals on the top of the support member, which reduces the contact area with the profile, can reduce the friction force during clamping activities, and extend the service life of the support member. The specific shape of the support member is not limited, including but not limited to a toothed plate, a striped plate, etc.

[0036] In one embodiment, the driving mechanism 3 includes a driving unit 32 and a plurality of transmission components 31 for driving the movable clamping part 22 to move in translation along the width direction of the clamping station 11. Each movable clamping part 22 is provided with a transmission component 31, and each of the transmission components 31 is connected to the driving unit 32. The use of translational movement can reduce the movement distance of the movable clamping part 22, so as to perform the clamping and releasing operations more efficiently. It should be noted that the structure for driving the translational movement of the movable clamping part 22 is not specifically limited, and for example, an electric push rod, a screw nut pair, a gear rack, etc. can be used.

[0037] In one embodiment, the transmission assembly 31 includes a screw rod 311 and a movable seat 312 rotatably mounted on the frame 1, the axis of the screw rod 311 is parallel to the width direction of the clamping station 11, the movable seat 312 is screwed onto the screw, and the movable clamping portion 22 is disposed on the movable seat 312. Based on the above structure, the movable seat 312 is driven to perform translational movement along the axis direction of the screw rod 311 by rotating the screw rod 311 forward or reversely.

[0038] Further, considering that the clamping mechanism 2 is provided with multiple ones, in order to enable the driving mechanism 3 to simultaneously drive multiple movable clamping parts 22 to move, in one embodiment, the driving unit 32 includes multiple T-type reducers, and the number of the T-type reducers is the same as the number of the screw rods 311 and they correspond one to one. The output shaft of each T-type reducer is connected to the corresponding screw rod 311, and the input shaft of each T-type reducer is distributed in sequence along the length direction of the clamping station 11, and each adjacent two input shafts are connected by a connecting rod 322. The connecting rod 322 is connected to a driving part 323 for driving it to rotate around its axis. It can be understood that the way in which the driving part 3233 drives the connecting rod 322 to rotate is not specifically limited, and it can be a gear transmission, a worm gear transmission, etc.

[0039] Preferably, the driving unit 323 includes a motor 3231 and a worm gear reducer 3232, the output shaft of the motor 3231 is connected to the input shaft of the worm gear reducer 3232, the output shafts of the worm gear reducer 3232 are respectively connected to the corresponding connecting rods 322, and the worm gear reducer 3232 can increase the torque of the motor 3231.

[0040] The working principle of the driving mechanism 3 is as follows: driving the motor 3231 to rotate, and the rotation causes the connecting rod 322 connected to the worm gear output shaft to rotate through the worm gear transmission. Since the input shafts of each T-type reducer are distributed in sequence along the length direction of the clamping station 11, and each adjacent two input shafts are connected by a connecting rod 322, each of the connecting rods 322 rotates synchronously, and each of the connecting rods 322 is connected to the input shaft of the T-type reducer, so that the output shaft of each T-type reducer can be driven to rotate synchronously, driving the screw 311 to rotate synchronously, and then driving each of the movable seats 312 to synchronously drive the movable clamping part 22 to move close to or away from the fixed clamping part 21.

[0041] Taking into account the stability of the moving seat 312 during translation, in one embodiment, the transmission assembly 31 also includes a guide structure 313 for guiding the moving seat 312. The guide structure 313 is not specifically limited, and may be in the form of a slide rail or the like. Preferably, a plurality of rollers are provided at the bottom of the moving seat 312, which can provide guidance while providing support for the moving seat 312, and avoid direct contact between the moving seat 312 and the base, thereby reducing mutual interference between the two and improving the stability of the moving seat 312 during translation.

[0042] After the H-profile 6 is clamped, it needs to be laser cut. During the cutting process, cutting waste will be generated. Therefore, in one embodiment, the interior of the base is hollow to form a accommodating space, and the cutting waste is temporarily stored in the accommodating space to avoid excessive accumulation and affect the cutting accuracy.

[0043] In order to improve the safety of the equipment, in one embodiment, the base is hollowed out on both sides along the width direction of the clamping station 11, and a protective cover 5 is provided at the hollowed out part to protect the driving mechanism 3 located in the base. Preferably, the protective cover 5 adopts an accordion cover, which can be contracted and extended, and can provide protection without affecting the movement of the movable seat 312.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An H-profile clamping and positioning device, characterized in that: The invention comprises a frame, on which a plurality of clamping mechanisms are arranged side by side to form a clamping station, wherein the clamping mechanism comprises a fixed clamping part and a movable clamping part which are arranged side by side on the frame along the width direction of the clamping station, wherein the movable clamping part is movably arranged on the frame and its movable direction is parallel to the width direction of the clamping station, and the clamping surface of the movable clamping part is opposite to the clamping surface of the fixed clamping part, and the H-profile clamping and positioning device further comprises a driving mechanism capable of driving each of the movable clamping parts to move synchronously, and the driving mechanism is drivingly connected to each of the movable clamping parts so that each of the movable clamping parts has a clamping position away from the corresponding fixed clamping part for clamping the H-profile and an unlocking position close to the corresponding fixed clamping part.

2. The H-profile clamping and positioning device according to claim 1, characterized in that: The clamping surfaces of the fixed clamping part and the movable clamping part are both provided with grooves.

3. The H-profile clamping and positioning device according to claim 1, characterized in that: The tops of the fixed clamping parts and the movable clamping parts are both provided with mounting parts, and two supporting members are arranged side by side along the width direction of the clamping station, wherein one of the supporting members is arranged at the top of each fixed clamping part through each mounting part, and the other supporting member is arranged at the top of each movable clamping part through each mounting part.

4. The H-profile clamping and positioning device according to claim 3, characterized in that: A plurality of supporting protrusions are protruded at intervals on the top of the supporting member.

5. The H-profile clamping and positioning device according to claim 1, characterized in that: The driving mechanism includes a driving unit and a plurality of transmission components for driving the movable clamping part to translate along the width direction of the clamping station. Each movable clamping part is equipped with one transmission component, and each of the transmission components is connected to the driving unit.

6. The H-profile clamping and positioning device according to claim 5, characterized in that: The transmission assembly comprises a screw rod and a movable seat rotatably mounted on the frame, the axis of the screw rod is parallel to the width direction of the clamping station, the movable seat is screwed on the screw rod, and the movable clamping part is arranged on the movable seat.

7. The H-profile clamping and positioning device according to claim 6, characterized in that: The transmission assembly also includes a guide structure for movably guiding the movable seat.

8. The H-profile clamping and positioning device according to claim 6, characterized in that: The driving unit includes a plurality of T-type reducers, the number of the T-type reducers is the same as the number of the screw rods and they correspond one to one, the output shaft of each T-type reducer is connected to the corresponding screw rod, the input shaft of each T-type reducer is distributed in sequence along the length direction of the clamping station, and every two adjacent input shafts are connected by a connecting rod, and the connecting rod is connected to a driving part for driving it to rotate around its axis.

9. The H-profile clamping and positioning device according to claim 8, characterized in that: The driving unit includes a motor and a worm gear reducer, wherein the output shaft of the motor is connected to the input shaft of the worm gear reducer, and the output shafts of the worm gear reducer are respectively connected to the corresponding connecting rods.

10. The H-profile clamping and positioning device according to claim 1, characterized in that: The frame is hollowed out at both sides along the width direction of the clamping station, and a protective cover is provided at the hollowed out portion.

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