Pipe clamping mechanism and cutting equipment

Abstract

The utility model provides a pipe clamping mechanism and cutting equipment, and the pipe clamping mechanism comprises a mounting plate; the butt clamping assembly comprises two pairs of clamping pieces, and the two pairs of clamping pieces can move on the mounting plate in the first direction so as to get close to each other to clamp the pipe or get away from each other to loosen the pipe; the moving part is arranged on the mounting plate and can move in the second direction to be close to or away from the pipe, and the second direction is perpendicular to the first direction; and the transmission assembly is connected with the moving piece and the two pairs of clamping pieces so as to push the two pairs of clamping pieces to get close to each other when the moving piece moves away from the pipe or push the two pairs of clamping pieces to get away from each other when the moving piece moves away from the pipe. According to the pipe clamping mechanism provided by the embodiment of the invention, the pipe can be stabilized, and the machining precision is ensured.

Description

Technical Field

[0001] The present application belongs to the field of laser processing technology, and more specifically, relates to a pipe clamping mechanism and cutting equipment. Background Art

[0002] When laser cutting tubes, they are typically held and fed forward by a fixed front chuck and a movable rear chuck. When cutting small tubes, the suspended portion between the front and rear chucks can swing and collapse, resulting in substandard precision. Utility Model Content

[0003] The embodiment of the present application provides a pipe clamping mechanism that can stabilize the pipe and ensure processing accuracy.

[0004] The technical solution adopted in the embodiment of the present application is to provide a pipe clamping mechanism, comprising:

[0005] Mounting plate;

[0006] The clamping assembly includes two pairs of clamping members, both of which can move along a first direction on the mounting plate to move closer to each other to clamp the pipe, or move away from each other to loosen the pipe;

[0007] a moving member, disposed on the mounting plate and movable along a second direction to approach or move away from the pipe, the second direction being perpendicular to the first direction;

[0008] A transmission assembly connects the moving member and the two clamping members to push the two clamping members toward each other when the moving member moves away from the pipe, or to push the two clamping members away from each other when the moving member moves toward the pipe.

[0009] Furthermore, the transmission assembly includes two connecting rods, and the two connecting rods correspond to the two clamping parts one by one respectively. One end of the connecting rod is hinged to the moving part, and the other end is hinged to the corresponding clamping part.

[0010] Furthermore, the movable member has a hinge portion, and one end of the two connecting rods away from the clamping member is hinged to the hinge portion.

[0011] Furthermore, the clamping member includes:

[0012] a clamping base plate, movably disposed on the mounting plate along the first direction;

[0013] The clamping block is arranged on the clamping bottom plate, and the side of the clamping block facing the other clamping piece is arranged in a recessed portion that matches the shape of the pipe.

[0014] Furthermore, the recess is arc-shaped or rectangular.

[0015] Furthermore, the clamping base plate is provided with a long hole, the clamping block is provided with a through hole, and a fastener is passed through the through hole and the long hole to fix the clamping block and the clamping base plate.

[0016] Furthermore, the pipe clamping mechanism further includes a first driver, and the first driver is used to drive the moving member to move along the second direction.

[0017] Furthermore, the pipe clamping mechanism further includes a second guide assembly, and the second guide assembly includes:

[0018] a second guide rail provided on the mounting plate along the second direction;

[0019] The second slider is arranged on the second guide rail and can slide along the length direction of the second guide rail. The moving member is arranged on the second slider.

[0020] Furthermore, the pipe clamping mechanism also includes a second driver for driving the mounting plate to move along the second direction so that the pipe is located between the two clamping members or is released from between the two clamping members.

[0021] An embodiment of the present application further provides a cutting device, comprising a fixed chuck, a movable chuck and the pipe clamping mechanism as described above, wherein the pipe clamping mechanism is located between the fixed chuck and the movable chuck.

[0022] The beneficial effect of the pipe clamping mechanism provided by the embodiment of the present application is that: a clamping assembly is provided in the pipe clamping mechanism of the embodiment of the present application, and the two clamping members of the clamping assembly can move along a first direction, thereby clamping or releasing the pipe located between the two clamping members. In addition, the movable member can be moved along a second direction under the drive of the first driver to approach or move away from the pipe. The movable member is connected to the two clamping members through a transmission assembly. When the movable member moves away from the pipe, the transmission assembly drives the two clamping members to move closer to each other to clamp the pipe, thereby preventing the pipe from swinging during the cutting process, ensuring processing accuracy, and improving the yield rate. After processing, the movable member moves closer to the pipe, and the transmission assembly drives the two clamping members to move away from each other to release the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1A schematic diagram of the three-dimensional structure of the pipe clamping mechanism provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the clamping assembly provided in an embodiment of the present application when clamping;

[0026] Figure 3 An exploded view of a clamping member provided in an embodiment of the present application;

[0027] Figure 4 Schematic diagram of the second driving mechanism provided in an embodiment of the present application driving the mounting plate to rise.

[0028] Among them, the reference numerals in the figures are:

[0029] 1. Pipe clamping mechanism;

[0030] 11. Mounting plate;

[0031] 12. Clamping assembly; 121. Clamping member; 1211. Clamping base plate; 12111. Long hole; 1212. Clamping block; 12121. Recess; 12122. Through hole;

[0032] 13. Moving part; 131. Articulated part;

[0033] 14. First driver;

[0034] 15. Transmission assembly; 151. Connecting rod;

[0035] 16. First guide assembly; 161. First guide rail; 162. First slider;

[0036] 17. Second guide assembly; 171. Second guide rail; 172. Second slider;

[0037] 18. Second driver;

[0038] 2. Pipes. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0040] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0043] See also Figure 1 Now, the pipe clamping mechanism 1 provided in the embodiment of the present application is described.

[0044] During the laser cutting process, the tube 2 is clamped by a fixed chuck and a movable chuck. However, when dealing with small tubes 2, the lack of support in the suspended portion of the tube 2 can cause it to swing or collapse, resulting in the processed tube 2 failing to meet the required precision. To address this issue, the present invention provides a tube clamping mechanism 1.

[0045] Reference Figure 1 and Figure 2 The pipe clamping mechanism 1 provided in an embodiment of the present application includes a mounting plate 11, a clamping assembly 12, a moving part 13 and a transmission assembly 15.

[0046] The mounting plate 11 is the mounting base of the entire clamping mechanism and is usually made of metal material with certain strength and stability. For example, it can be a rectangular, T-shaped or Y-shaped plate structure.

[0047] Reference Figure 1 and Figure 2 The clamping assembly 12 includes two pairs of clamping members 121. Both of the clamping members 121 can move along the first direction on the mounting plate 11 to move closer to each other to clamp the pipe 2, or move away from each other to loosen the pipe 2.

[0048] The shape of the clamping members 121 can be designed based on the shape of the tubing 2. For example, for round tubing 2, a clamping member 121 with an arc-shaped opening can be used, while for square tubing, a clamping member 121 with a rectangular opening can be used. When the two clamping members 121 approach each other, they clamp the tubing 2; when they move away from each other, they release the tubing 2. The clamping members 121 move along a first direction on the mounting plate 11, which can be horizontal. Specifically, the clamping members 121 can be connected to the mounting plate 11 via a guide rail and slider assembly.

[0049] Reference Figure 1 and Figure 2 The movable member 13 is disposed on the mounting plate 11 and is movable in a second direction to move closer to or further away from the pipe 2, the second direction being perpendicular to the first direction. When the first direction is horizontal, the second direction may be vertical. The movable member 13 may be generally made of a metal material having a certain strength and stability. The function of the movable member 13 is to trigger the operation of the transmission assembly 15 by moving closer to or further away from the pipe 2.

[0050] Reference Figure 1 and Figure 2 The transmission assembly 15 connects the moving member 13 and the two clamping members 121 to push the two clamping members 121 toward each other when the moving member 13 moves away from the pipe 2, or to push the two clamping members 121 away from each other when the moving member 13 moves toward the pipe 2. The transmission assembly 15 can be in the form of a rack and pinion transmission or a connecting rod 151 transmission. When the moving member 13 moves away from the pipe 2, the transmission assembly 15 pushes the two pairs of clamping members 121 toward each other and clamps the pipe 2; when the moving member 13 moves toward the pipe 2, the transmission assembly 15 pushes the two pairs of clamping members 121 away from each other and releases the pipe 2.

[0051] The following is the working process of the pipe clamping mechanism 1:

[0052] Prepare for clamping: Initially, the moving member 13 is in a position close to the pipe 2. At this time, the transmission assembly 15 pushes the two pairs of clamping members 121 away from each other, and the clamping members 121 are in a state of loosening the pipe 2.

[0053] Clamping the pipe: When clamping the pipe 2, the moving member 13 moves away from the pipe 2 in a second direction (e.g., vertical direction). As the moving member 13 moves, the transmission assembly 15 begins to operate, transmitting the movement of the moving member 13 to the two pairs of clamping members 121. The transmission assembly 15 pushes the two pairs of clamping members 121 toward each other on the mounting plate 11 in a first direction (e.g., horizontal direction). The two pairs of clamping members 121 gradually approach the pipe 2 and ultimately clamp the pipe 2, preventing the pipe 2 from swinging or collapsing during the cutting process, thereby ensuring processing accuracy.

[0054] Loosening the Tube: After processing the tube 2, the moving member 13 moves toward the tube 2 in the second direction. This movement of the moving member 13 causes the transmission assembly 15 to reverse direction, pushing the two pairs of clamping members 121 away from each other in the first direction on the mounting plate 11. The two pairs of clamping members 121 gradually loosen the tube 2, allowing the processed tube 2 to be removed.

[0055] Reference Figure 1 and Figure 2 The transmission assembly 15 includes two connecting rods 151, and the two connecting rods 151 correspond to the two clamping members 121 one by one. One end of the connecting rod 151 is hinged to the moving member 13, and the other end is hinged to the corresponding clamping member 121.

[0056] One end of the connecting rod 151 is hingedly connected to the moving member 13, allowing the connecting rod 151 to rotate freely within a certain angle range, thereby accommodating the movement of the moving member 13 in the second direction and converting this movement into a force that pushes the clamping member 121. The other end of the connecting rod 151 is hingedly connected to the corresponding clamping member 121, allowing the clamping member 121 to move smoothly in the first direction. When the connecting rod 151 moves, it can push or pull the clamping member 121, achieving the clamping and loosening operations of the pipe 2.

[0057] The primary function of the connecting rod 151 is to transmit force and motion between the moving member 13 and the clamping member 121. When the moving member 13 moves in the second direction, it drives the connecting rod 151. If the moving member 13 moves away from the tubular 2, the two connecting rods 151 push the two clamping members 121 toward each other along the first direction on the mounting plate 11, thereby clamping the tubular 2. In this manner, the connecting rod 151 transmits force and converts direction.

[0058] When the moving member 13 moves closer to the pipe 2, the connecting rod 151 pulls the clamping members 121 away from each other, releasing the pipe 2. Throughout the entire process, the two connecting rods 151 correspond to the two pairs of clamping members 121 one by one, working together to ensure the synchronization and accuracy of the movement of the clamping members 121, thereby achieving stable clamping and release of the pipe 2 and ensuring the processing accuracy of the pipe 2 during the laser cutting process.

[0059] Reference Figure 1 and Figure 2, the movable member 13 has a hinge portion 131, and the ends of the two connecting rods 151 away from the clamping member 121 are hinged to the hinge portion 131. The hinge portion 131 can be a protruding shaft, through which the connecting rod 151 is hinged. The ends of the two connecting rods 151 away from the clamping member 121 are hinged to the hinge portion 131, that is, the two connecting rods 151 are jointly connected to the same hinge portion 131 of the movable member 13. This connection method enables the movable member 13 to drive the two connecting rods 151 to move at the same time, thereby realizing synchronous control of the two pairs of clamping members 121. In some embodiments, the two connecting rods 151 are arranged one above and one below the hinge portion 131,

[0060] When the moving member 13 moves in the second direction, the hinge 131 moves with the moving member 13, thereby driving the connecting rod 151 to move. Since the two connecting rods 151 are connected to the hinge 131, their movement is synchronous, which can ensure that the two pairs of clamps 121 move in unison.

[0061] Reference Figure 1 and Figure 3 The clamping member 121 includes a clamping base plate 1211 and a clamping block 1212 .

[0062] The clamping base plate 1211 is movably mounted on the mounting plate 11 along the first direction. The clamping base plate 1211 primarily supports and drives the movement of the clamping block 1212. Driven by the transmission assembly 15, the clamping base plate 1211 can accurately move along the mounting plate 11, thereby clamping and releasing the pipe 2. For example, the clamping base plate 1211 can be moved on the mounting plate 11 by means of a slider and a guide rail. The guide rail ensures the accurate movement of the clamping base plate 1211, while the slider reduces frictional resistance and improves smooth movement.

[0063] A clamping block 1212 is mounted on the clamping base plate 1211. The side of the clamping block 1212 facing the other clamping member 121 is provided with a recessed portion 12121 that matches the shape of the pipe 2. The recessed portion 12121 is designed to better conform to the surface of the pipe 2, enhancing the stability and reliability of the clamping. When the two pairs of clamping members 121 are brought close together, the recessed portion 12121 on the clamping block 1212 tightly wraps around the pipe 2, preventing it from slipping or rotating during the clamping process.

[0064] The shape of the recess 12121 is determined according to the specific shape of the tube 2. For example, if the tube 2 is circular, the recess 12121 is arc-shaped; if the tube 2 is square, the recess 12121 is rectangular.

[0065] Reference Figure 1 and Figure 3The clamping base plate 1211 is provided with a long hole 12111, and the clamping block 1212 is provided with a through hole 12122. A fastener is passed through the through hole 12122 and the long hole 12111 to fix the clamping block 1212 to the clamping base plate 1211. The long hole 12111 is usually in the shape of a long strip, and its length direction is along the first direction. The long hole 12111 is mainly used to adjust the position of the clamping block 1212 on the clamping base plate 1211. Through the long hole 12111, the position of the clamping block 1212 can be adjusted within a certain range to adapt to pipes 2 of different sizes or meet specific clamping requirements.

[0066] The clamping block 1212 is provided with a through hole 12122, and the size of the through hole 12122 is usually matched with the fastener to ensure that the fastener can smoothly pass through the through hole 12122 and the long hole 12111. The fastener is passed through the through hole 12122 and the long hole 12111 to fix the clamping block 1212 to the clamping base plate 1211. The fastener can be a bolt, a nut, a screw, etc. After the fastener passes through the through hole 12122 and the long hole 12111, the clamping block 1212 can be firmly fixed to the clamping base plate 1211 by tightening the nut or other means. During use, the fastener can be loosened as needed to adjust the position of the clamping block 1212 on the clamping base plate 1211, and then the fastener can be re-tightened to fix it. This design not only meets the demand for position adjustment of the clamping block 1212, but also ensures the stability and reliability of the clamping block 1212 when clamping the pipe 2.

[0067] Reference Figure 1 and Figure 2 The pipe clamping mechanism further includes a first driver, which is used to drive the moving member to move along the second direction.

[0068] The first driver 14 can be a power device such as a motor, a cylinder, etc. Specifically, the moving member 13 is L-shaped, with one end being slidably connected to the mounting plate 11 and the other end being connected to the first driver 14 .

[0069] When the pipe 2 needs to be clamped, the first driver 14 is activated to drive the moving member 13 away from the pipe 2 along the second direction (eg, vertical direction), and then the two pairs of clamps 121 are driven closer to each other through the transmission assembly 15 to clamp the pipe 2.

[0070] When the pipe 2 needs to be loosened, the first driver 14 is started to drive the moving member 13 toward the pipe 2 along the second direction (eg, vertical direction), and then the two pairs of clamps 121 are driven away from each other through the transmission assembly 15 to loosen the pipe 2.

[0071] Reference Figure 1 and Figure 2The pipe clamping mechanism 1 further includes a first guide assembly 16 , which includes a first guide rail 161 and two first sliders 162 .

[0072] The first guide rail 161 is provided on the mounting plate 11 along the first direction, and provides a precise path for the movement of the clamping member 121. The first guide rail 161 restricts the movement of the clamping member 121 to the first direction, preventing it from deflecting or shaking, thereby improving the precision and reliability of the clamping mechanism.

[0073] The first slider 162 is mounted on the first guide rail 161 and is slidable along the length of the first guide rail 161. One of the clamping members 121 is mounted on one of the first sliders 162, and the other clamping member 121 is mounted on the other of the first sliders 162. Both first sliders 162 are mounted on the first guide rail 161 and are slidable along the length of the first guide rail 161. The two clamping members 121 are mounted on the two first sliders 162, respectively, so that the two clamping members 121 can slide independently on the first guide rail 161 while ensuring that they move in the same direction.

[0074] The first slider 162 serves to connect the clamping member 121 and the first guide rail 161 , and has a high matching accuracy with the first guide rail 161 , thereby reducing friction resistance and improving the smoothness of movement of the clamping member 121 .

[0075] Reference Figure 1 The pipe clamping mechanism 1 further includes a second guide assembly 17 , and the second guide assembly 17 includes a second guide rail 171 and a second slider 172 .

[0076] The second guide rail 171 is disposed on the mounting plate 11 along the second direction. The second direction is perpendicular to the first direction. For example, if the first direction is horizontal, the second direction can be vertical. The second guide rail 171 provides a precise path for the movement of the movable member 13, strictly restricting the movable member 13 to slide only in the second direction, preventing the movable member 13 from deviating from the predetermined direction, and ensuring the operating accuracy and reliability of the entire clamping mechanism.

[0077] The second slider 172 is disposed on the second guide rail 171 and is slidable along the length of the second guide rail 171. The movable member 13 is disposed on the second slider 172. The sliding of the second slider 172 on the second guide rail 171 drives the movable member 13 to move in the second direction, allowing the movable member 13 to perform stable linear motion, thereby ensuring accurate and reliable movement during the process of clamping and releasing the pipe 2.

[0078] Reference Figure 1 and Figure 4The pipe clamping mechanism 1 further includes a second driver 18 for driving the mounting plate 11 to move along the second direction so that the pipe 2 is positioned between the two pairs of clamping members 121 or is released from between the two pairs of clamping members 121. The second driver 18 drives the mounting plate 11 to move along the second direction in the pipe clamping mechanism 1. Through this movement, the positions of the mounting plate 11 and the clamping assembly 12 mounted thereon, and other components, can be adjusted so that the pipe 2 can be accurately positioned between the two pairs of clamping members 121 for clamping, or released from between the two pairs of clamping members 121 after processing is completed, thereby facilitating the loading and unloading and operation of the pipe 2.

[0079] As mentioned above, the second direction is usually perpendicular to the first direction. Assuming that the second direction is a vertical direction, the second driver 18 can achieve precise movement of the mounting plate 11 in the vertical direction by means of a motor-driven screw nut mechanism, a cylinder push, etc.

[0080] When the pipe 2 needs to be clamped, the second actuator 18 drives the mounting plate 11 upward (assuming the second direction is upward), allowing the pipe 2 to smoothly enter the clamping position between the two pairs of clamps 121. When processing is completed, the second actuator 18 drives the mounting plate 11 downward, allowing the pipe 2 to be released from between the two pairs of clamps 121, so that the next pipe 2 can be processed or replaced.

[0081] An embodiment of the present application further provides a cutting device, comprising a fixed chuck, a movable chuck, and a pipe clamping mechanism 1 as described in any of the above embodiments, wherein the pipe clamping mechanism 1 is located between the fixed chuck and the movable chuck.

[0082] The cutting device of the embodiment of the present application includes the pipe clamping mechanism 1 in any of the above embodiments, and thus has the beneficial effects brought about by the pipe clamping mechanism 1 in any of the above embodiments, which will not be described in detail here.

[0083] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pipe clamping mechanism, characterized in that: include: Mounting plate; The clamping assembly includes two pairs of clamping members, both of which can move along a first direction on the mounting plate to move closer to each other to clamp the pipe, or move away from each other to loosen the pipe; a moving member, disposed on the mounting plate and movable along a second direction to approach or move away from the pipe, the second direction being perpendicular to the first direction; A transmission assembly connects the moving member and the two clamping members to push the two clamping members toward each other when the moving member moves away from the pipe, or to push the two clamping members away from each other when the moving member moves toward the pipe.

2. The pipe clamping mechanism according to claim 1, characterized in that: The transmission assembly includes two connecting rods, which correspond to the two clamping parts one by one. One end of the connecting rod is hinged to the moving part, and the other end is hinged to the corresponding clamping part.

3. The pipe clamping mechanism according to claim 2, characterized in that: The moving member has a hinge portion, and one end of the two connecting rods away from the clamping member is hinged to the hinge portion.

4. The pipe clamping mechanism according to claim 1, characterized in that: The clamping piece includes: a clamping base plate, movably disposed on the mounting plate along the first direction; The clamping block is arranged on the clamping bottom plate, and the side of the clamping block facing the other clamping piece is arranged in a recessed portion that matches the shape of the pipe.

5. The pipe clamping mechanism according to claim 4, characterized in that: The concave portion is arc-shaped or rectangular.

6. The pipe clamping mechanism according to claim 4, characterized in that: The clamping base plate is provided with a long hole, the clamping block is provided with a through hole, and a fastener is passed through the through hole and the long hole to fix the clamping block and the clamping base plate.

7. The pipe clamping mechanism according to claim 1, characterized in that: The pipe clamping mechanism further includes a first driver, which is used to drive the moving member to move along the second direction.

8. The pipe clamping mechanism according to claim 1, characterized in that: The pipe clamping mechanism further includes a second guide assembly, the second guide assembly including: a second guide rail provided on the mounting plate along the second direction; The second slider is arranged on the second guide rail and can slide along the length direction of the second guide rail. The moving member is arranged on the second slider.

9. The pipe clamping mechanism according to claim 1, characterized in that: The pipe clamping mechanism further includes a second driver for driving the mounting plate to move along the second direction so that the pipe is located between the two clamping members or is released from between the two clamping members.

10. A cutting device, characterized in that: The invention comprises a fixed chuck, a movable chuck and a pipe clamping mechanism according to any one of claims 1 to 9, wherein the pipe clamping mechanism is located between the fixed chuck and the movable chuck.

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