A drawing device for a heat pipe

Abstract

The application discloses a stretching device for a heating tube, which comprises a first clamp, a second clamp, a material receiving clamp, a first axial positioning mechanism and a second axial positioning mechanism. The material receiving clamp is used for clamping the heating tube, the diameter of the pipe clamping groove of the material receiving clamp is larger than the diameter of the heating tube, and the axial position is not limited. The first axial positioning mechanism and the second axial positioning mechanism are respectively located at the two ends of the heating tube, and the first axial positioning mechanism and the second axial positioning mechanism can relatively move along the axial direction of the heating tube. The first clamp and the second clamp are respectively used for clamping the two ends of the heating tube, and the first clamp and the second clamp can relatively move along the axial direction of the heating tube. Therefore, the device is used for axially limiting and straightening the heating tube by the axial positioning mechanism before stretching, and is combined with the real-time length measurement of the electronic ruler and the feedback of the positioning signal, so that the timing linkage of "first positioning and straightening and then clamping and stretching" is realized, and the stretching precision is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of pipe stretching equipment technology, and in particular to a stretching device for a heating tube. Background Technology

[0002] The heating element needs to be stretched to a preset length in a stretching machine. Existing stretching machines do not perform axial limiting or correction of the heating element before stretching, which often results in large differences in the length of the heating element after stretching, which is not conducive to the uniformity of quality. Summary of the Invention

[0003] The purpose of this invention is to provide a stretching device for a heating element. Before stretching, the heating element is axially limited or corrected by an axial positioning mechanism, and then stretched, thereby improving the stretching accuracy, quality and consistency.

[0004] To achieve this objective, the present invention adopts the following technical solution: A stretching device for a heating element includes a first clamp, a second clamp, a receiving clamp, a first axial positioning mechanism, and a second axial positioning mechanism. The receiving clamp is used to hold the heating element, and the diameter of the clamping groove of the receiving clamp is larger than the diameter of the heating element. The first axial positioning mechanism and the second axial positioning mechanism are located at both ends of the heating tube, and the first axial positioning mechanism and the second axial positioning mechanism can move relative to each other along the axial direction of the heating tube. The first clamp and the second clamp are used to hold the two ends of the heating tube, respectively, and the first clamp and the second clamp can move relative to each other along the axial direction of the heating tube.

[0005] In some embodiments, the first axial positioning mechanism includes a positioning block and a first cylinder, wherein the output end of the first cylinder is drivenly connected to the positioning block; The positioning block is equipped with a V-groove and a transverse groove.

[0006] In some embodiments, the first axial positioning mechanism further includes an electronic ruler, the measuring end of which is connected to the positioning block; The measuring end of the electronic ruler is connected to the positioning block through a sliding block and a first spring.

[0007] In some embodiments, the second axial positioning mechanism includes a positioning cylinder and a second cylinder, the output end of the second cylinder being drivenly connected to the positioning cylinder, and the positioning cylinder having a concave conical surface.

[0008] In some implementations, a first component and a second component are included; The first component includes a first clamp and a receiving clamp; The second component includes a second clamp, a receiving clamp, and a second axial positioning mechanism; The first axial positioning mechanism is located on the side of the first component away from the first component.

[0009] In some implementations, the first component is driven to connect with the tension drive mechanism; The tension drive mechanism is used to drive the first component to move along the axial direction of the heating tube.

[0010] In some implementations, the second component is driven to connect with the position adjustment mechanism; The positioning mechanism can adjust the position of the second component.

[0011] In some embodiments, a base is also included, the base being provided with guide rails, and the second components are slidably connected to the guide rails; The first component is slidably connected to the base via a guide rail slider structure.

[0012] In some embodiments, the first axial positioning mechanism includes a positioning block and a sensing unit; When the positioning block moves to the preset position, the sensing unit sends a signal.

[0013] In some embodiments, a first component is also included, which includes a first clamp, a receiving clamp, and a first axial positioning mechanism.

[0014] The beneficial effects of the present invention are as follows: the heating element is axially limited or corrected by an axial positioning mechanism before stretching, thereby improving the stretching accuracy, quality and consistency. Furthermore, it enables automated positioning, stretching, and other operations, thereby improving production efficiency; Furthermore, the position adjustment mechanism can accommodate heating elements of different lengths and specifications, making it widely applicable and ensuring stable and reliable operation. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the tensioning device according to the first embodiment of the present invention; Figure 2 This is a left view of the axial positioning mechanism according to the first embodiment of the present invention; Figure 3 This is a structural diagram of the positioning block according to the first embodiment of the present invention; Figure 4 This is a structural diagram of the positioning cylinder according to the first embodiment of the present invention; Figure 5 This is a structural diagram of the first component of the first embodiment of the present invention; Figure 6 This is a structural diagram of the second component according to the first embodiment of the present invention; Figure 7 This is a structural diagram of the tensioning device according to the second embodiment of the present invention; Figure 8This is a structural diagram of the first axial positioning mechanism according to the second embodiment of the present invention; Wherein: 1-First component; 11-First clamp; 111-First hydraulic cylinder; 12-First base; 13-Guide rail slider structure; 2-Second component; 21-Second clamp; 211-Second hydraulic cylinder; 22-Second base; 3-First axial positioning mechanism; 31-Bracket; 32-First cylinder; 33-Positioning block; 331-V-groove; 332-Horizontal groove; 34-Electronic ruler; 35-Slide block; 36-First spring; 37-Linkage plate; 4-Second axial positioning mechanism; 41-Second cylinder; 42-Positioning cylinder; 421-Conical surface; 5-Tension drive mechanism; 51-First motor; 52-First gear; 53-First rack; 6-Position adjustment mechanism; 61-Second motor; 62-Lead screw; 64-Locking structure; 7-Material receiving clamp; 71-Third cylinder; 8-Sensing part; 81-Bearing seat; 82-Shaft; 83-Second spring; 84-Connecting plate; 85-Sensing sensor; 9-Base; 91-Guide rail column; 100-Heating tube. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] First Embodiment refer to Figures 1 to 6 A stretching device for a heating element includes a first clamp 11, a second clamp 21, a receiving clamp 7, a first axial positioning mechanism 3, and a second axial positioning mechanism 4.

[0018] The receiving clamp 7 is used to hold the heating tube 100. The diameter of the second clamping groove of the receiving clamp 7 is larger than the diameter of the heating tube 100. Therefore, the receiving clamp 7 and the heating tube 100 are in clearance fit. After the heating tube 100 is held by the receiving clamp 7, the heating tube 100 is not restricted in the axial direction.

[0019] The first axial positioning mechanism 3 and the second axial positioning mechanism 4 are arranged opposite to each other and are located at both ends of the heating tube 100. The first axial positioning mechanism 3 and the second axial positioning mechanism 4 can move relative to each other along the axial direction of the heating tube 100; for example, they can move closer to each other and further away from each other, so as to position or correct the axial direction of the heating tube 100.

[0020] The first clamp 11 and the second clamp 21 are used to clamp the two ends of the heating tube 100, respectively. The first clamp 11 and the second clamp 21 can move relative to each other along the axial direction of the heating tube 100. For example, the second clamp 21 is fixed, and the first clamp 11 can move away from and towards the second clamp 21. When stretching the heating tube 100, the first clamp 11 can move away from the second clamp 21, thereby performing a stretching action.

[0021] Stretching steps: Step 1: The heating element 100 is moved to the corresponding position of the receiving clamp 7 by a robot or manually. The receiving clamp 7 holds the heating element 100. At this time, the axial position of the heating element 100 is not limited.

[0022] Step 2: The first axial positioning mechanism 3 and the second axial positioning mechanism 4 move closer to each other to position or correct the axial position of the heating tube 100.

[0023] Step 3: The first clamp 11 and the second clamp 21 clamp the two ends of the heating tube 100 respectively; Step 4: The second clamp 21 is fixed in place, and the first clamp 11 moves away from the second clamp 21 to stretch the heating tube 100 to the preset length.

[0024] If the first axial positioning mechanism 3 is equipped with an electronic ruler 34, step five will be executed after the heating tube 100 is stretched to the preset length. Step 5: Measure the length of the heating element 100.

[0025] Finally, heating element 100 is transferred to the next workstation.

[0026] Therefore, the heating element is axially limited or corrected by an axial positioning mechanism before stretching, thereby improving the stretching accuracy and quality; and it can realize automated positioning, stretching and other operations, improving production efficiency.

[0027] refer to Figure 2 and Figure 3 The first axial positioning mechanism 3 includes a positioning block 33 and a first cylinder 32. The output end of the first cylinder 32 is driven to the positioning block 33; the first cylinder 32 drives the positioning block 33 to move. The positioning block 33 is provided with a V-shaped groove 331 and a horizontal groove 332. The V-shaped groove 331 is conducive to centering the heating tube 100.

[0028] refer to Figure 2 The first axial positioning mechanism 3 also includes an electronic ruler 34, the measuring end of which is connected to the positioning block 33; The measuring end of the electronic ruler 34 is connected to the positioning block 33 through a sliding block 35 and a first spring 36.

[0029] The first axial positioning mechanism 3 includes a bracket 31, a first cylinder 32 and an electronic ruler 34 are both assembled on the bracket 31, the output end of the first cylinder 32 is connected to the linkage plate 37 through a linear bearing, a slide 35 is slidably connected to the bracket 31, one end of the slide 35 is connected to the measuring end of the electronic ruler 34, and the other end of the slide 35 is connected to the linkage plate 37. The connecting plate 84 is connected to the positioning block 33 through a joint bearing, thereby reducing friction and reducing deviation.

[0030] The first cylinder 32 can be a MI cylinder structure, featuring a magnetic switch and a floating joint, which can compensate for installation errors and improve accuracy. The magnetic switch can detect the movement of the first cylinder 32.

[0031] The electronic ruler 34 is used to measure the length of the heating tube 100 and record the length data of the heating tube 100. When abnormal data is found, the device can be adjusted or operated.

[0032] refer to Figure 2 and Figure 4 The second axial positioning mechanism 4 includes a positioning cylinder 42 and a second cylinder 41. The output end of the second cylinder 41 is drivenly connected to the positioning cylinder 42. The positioning cylinder 42 is provided with a concave conical surface 421. The second cylinder 41 pushes the positioning cylinder 42 to move. The second cylinder 41 may be provided with a magnetic switch for detecting the action of the second cylinder 41. The concave conical surface 421 is conducive to aligning the heating tube 100.

[0033] Therefore, when axially positioning the heating element 100, the positioning block 33 and the positioning cylinder 42 move closer to each other, thereby positioning or correcting the axial position of the heating element 100. The positioning block 33 and the positioning cylinder 42 can move simultaneously, or the positioning cylinder 42 can move first, followed by the positioning block 33.

[0034] The movement stroke of the positioning cylinder 42 is set to be fixed. Therefore, the axial position coordinate of one end of the heating tube 100 is fixed. When measuring the length of the heating tube 100, it is only necessary to measure the other end of the heating tube 100 to know its axial position coordinate. Then, the axial length data of the heating tube 100 can be obtained based on the axial position coordinates of both ends of the heating tube 100.

[0035] Once the heating element 100 is axially limited or calibrated, the first axial positioning mechanism 3 can send relevant signals such as "positioning or calibration completed".

[0036] refer to Figure 5 The first clamp 11 is driven to the first oil cylinder 111, and the second clamp 21 is driven to the second oil cylinder 211. The oil cylinder is used to drive the clamp to loosen and clamp. Both the first clamp 11 and the second clamp 21 have a V-shaped first clamping groove, which can clamp heating tubes 100 of various diameters, improve applicability, and clamp more firmly.

[0037] refer to Figure 5 The receiving clamp 7 is connected to the third cylinder 71, which is used to drive the receiving clamp 7 to loosen and clamp. The receiving clamp 7 has a circular second clamping groove, the diameter of which is larger than the diameter of the heating tube 100, so that the receiving clamp 7 and the heating tube 100 are in clearance fit. Two or more receiving clamps 7 can be appropriately set according to the length of the heating tube 100.

[0038] refer to Figure 5 and Figure 6 The device includes a first component 1 and a second component 2; The first component 1 is provided with a first clamp 11 and a receiving clamp 7; that is, the first clamp 11 and the receiving clamp 7 are assembled on top of the first base 12.

[0039] The second component 2 is provided with a second clamp 21, a receiving clamp 7 and a second axial positioning mechanism 4; that is, the second clamp 21, the receiving clamp 7 and the second axial positioning mechanism 4 are assembled on the top of the second base 22.

[0040] The first axial positioning mechanism 3 is located on the side of the first component 1 away from the first component 1. The first axial positioning mechanism 3 is fixedly assembled to the base 9.

[0041] refer to Figure 5 The first component 1 is driven by the tension drive mechanism 5; the tension drive mechanism 5 is fixedly assembled on the base 9.

[0042] The stretching drive mechanism 5 is used to drive the first component 1 to move along the axial direction of the heating tube 100.

[0043] The stretching drive mechanism 5 includes a first motor 51, a first gear 52, and a first rack 53; The output end of the first motor 51 is driven by the first gear 52, the first gear 52 meshes with the first rack 53, and the first rack 53 is connected to the first base 12 of the first component 1.

[0044] A stroke sensor may also be provided, which can measure and limit the movement stroke of the first component 1 when the heating tube 100 is stretched.

[0045] Stretching steps: Step 1: The heating element 100 is moved to the corresponding position of the receiving clamp 7 by a robot or manually. The third cylinder 71 drives the receiving clamp 7 to hold the heating element 100. At this time, the axial position of the heating element 100 is not limited.

[0046] Step 2: The first cylinder 32 of the first axial positioning mechanism 3 drives the positioning block 33 to move, and the second cylinder 41 of the second axial positioning mechanism 4 drives the positioning cylinder 42 to move, causing the positioning block 33 and the positioning cylinder 42 to move closer to each other and abut against the two ends of the heating tube 100, thereby positioning or correcting the axial position of the heating tube 100.

[0047] Step 3: The first hydraulic cylinder 111 drives the first clamp 11 to clamp one end of the heating tube 100, and the second hydraulic cylinder 211 drives the second clamp 21 to clamp the other end of the heating tube 100, thereby clamping both ends of the heating tube 100 respectively. Step 4: The second clamp 21 is fixed in place, and the first motor 51 of the stretching drive mechanism 5 drives the first component 1 to move, thereby causing the first clamp 11 to move away from the second clamp 21 and stretch the heating tube 100 to the preset length.

[0048] When the first axial positioning mechanism 3 is equipped with an electronic ruler 34, after the heating tube 100 is stretched to the preset length, step five is executed. Step 5: The first cylinder 32 drives the electronic ruler 34 to move and measure the length of the heating tube 100.

[0049] Finally, heating element 100 is transferred to the next workstation.

[0050] Therefore, this device uses an axial positioning mechanism to axially limit and straighten the heating tube before stretching, and coordinates with real-time length measurement and positioning feedback by an electronic ruler to achieve a sequential linkage of "first positioning and straightening, then clamping and stretching", which significantly improves the stretching accuracy.

[0051] refer to Figure 1 The second component 2 is driven to be connected to the position adjustment mechanism 6; the position adjustment mechanism 6 can adjust the position of the second component 2.

[0052] Therefore, the second component 2 can be adjusted accordingly based on the different lengths of the heating element 100, thus adapting to heating elements 100 of different lengths and improving applicability. After the second component 2 is adjusted to the desired position, it remains fixed in place. The second component 2 can be fixed in position by means of the locking structure 64.

[0053] The position adjustment mechanism 6 includes a second motor 61, a lead screw 62, and a nut block. The output end of the second motor 61 is driven and connected to the lead screw 62. The lead screw 62 is connected to the nut block, and the nut block is connected to the second base 22 of the second component 2.

[0054] refer to Figure 1 The base 9 is provided with guide rail post 91, and the second components 2 are slidably connected to the guide rail post 91.

[0055] The first component 1 is slidably connected to the base 9 via the guide rail slider structure 13.

[0056] The first axial positioning mechanism 3, the tension drive mechanism 5, the position adjustment mechanism 6, etc. are fixedly assembled on the machine base 9.

[0057] Second embodiment: refer to Figure 7 and Figure 8 The second embodiment has a structure that is basically the same or similar to that of the first embodiment, except that the structure and position of the first axial positioning mechanism 3 are somewhat different.

[0058] Specifically: The first axial positioning mechanism 3 includes a positioning block 33 and a sensing unit 8; when the positioning block 33 moves to a preset position, the sensing unit 8 sends a signal, such as a light signal.

[0059] The sensing unit 8 includes a connecting plate 84, a shaft 82, a second spring 83, a bearing seat 81, a sensing sensor 85, and a sensor light. A positioning block 33 is connected to one side of the connecting plate 84, and the shaft 82 is slidably connected to the bearing seat 81 on the other side. The second spring 83 is sleeved on the shaft 82. The sensing sensor 85 is located on one side of the connecting plate 84. When the positioning block 33 moves to a preset position, the sensing sensor 85 sends a signal, causing the sensor light to illuminate, and simultaneously, the positioning block 33 stops moving.

[0060] The first component 1 is equipped with a first clamp 11, a receiving clamp 7, and a first axial positioning mechanism 3. Thus, the first axial positioning mechanism 3 moves with the first component 1. When axially positioning or correcting the heating element 100, the stretching drive mechanism 5 drives the first component 1 to move, thereby bringing the positioning block 33 closer to the heating element 100. When positioning or correction is completed, the first component 1 stops moving. After the first clamp 11 and the second clamp 21 clamp the heating element 100, the stretching drive mechanism 5 drives the first component 1 to move again, stretching the heating element 100.

[0061] Stretching steps: Step 1: The heating element 100 is moved to the corresponding position of the receiving clamp 7 by a robot or manually. The third cylinder 71 drives the receiving clamp 7 to hold the heating element 100. At this time, the axial position of the heating element 100 is not limited.

[0062] Step 2: The first motor 51 of the stretching drive mechanism 5 drives the first component 1 to move as a whole, causing the positioning block 33 to approach the heating tube 100. The second cylinder 41 of the second axial positioning mechanism 4 drives the positioning cylinder 42 to approach the heating tube 100, thereby causing the positioning block 33 and the positioning cylinder 42 to move closer to each other and abut against both ends of the heating tube 100. When the positioning or correction is completed, the sensing unit 8 emits a light signal, and the first motor 51 of the stretching drive mechanism 5 stops working, thereby realizing the positioning or correction of the axial position of the heating tube 100.

[0063] Step 3: The first hydraulic cylinder 111 drives the first clamp 11 to clamp one end of the heating tube 100, and the second hydraulic cylinder 211 drives the second clamp 21 to clamp the other end of the heating tube 100, thereby clamping both ends of the heating tube 100 respectively. Step 4: The second clamp 21 is fixed in place, and the first motor 51 of the stretching drive mechanism 5 drives the first component 1 to move as a whole, thereby causing the first clamp 11 to move away from the second clamp 21 and stretch the heating tube 100 to the preset length.

[0064] Finally, heating element 100 is transferred to the next workstation.

[0065] The above description only discloses some embodiments of the present invention. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the invention.

Claims

1. A stretching device for a heating element, characterized in that, It includes a first clamp (11), a second clamp (21), a receiving clamp (7), a first axial positioning mechanism (3), and a second axial positioning mechanism (4); The receiving clamp (7) is used to hold the heating tube (100), and the diameter of the clamping groove of the receiving clamp (7) is larger than the diameter of the heating tube (100); The first axial positioning mechanism (3) and the second axial positioning mechanism (4) are located at both ends of the heating tube (100), and the first axial positioning mechanism (3) and the second axial positioning mechanism (4) can move relative to each other along the axial direction of the heating tube (100). The first clamp (11) and the second clamp (21) are respectively used to clamp the two ends of the heating tube (100), and the first clamp (11) and the second clamp (21) can move relative to each other along the axial direction of the heating tube (100).

2. The stretching device for a heating element according to claim 1, characterized in that, The first axial positioning mechanism (3) includes a positioning block (33) and a first cylinder (32), and the output end of the first cylinder (32) is drivenly connected to the positioning block (33); The positioning block (33) is provided with a V-shaped groove (331) and a transverse groove (332).

3. The stretching device for a heating element according to claim 2, characterized in that, The first axial positioning mechanism (3) further includes an electronic ruler (34), the measuring end of which is connected to the positioning block (33); The measuring end of the electronic ruler (34) is connected to the positioning block (33) through a sliding block (35) and a first spring (36) cooperation structure.

4. The stretching device for a heating element according to claim 2, characterized in that, The second axial positioning mechanism (4) includes a positioning cylinder (42) and a second cylinder (41). The output end of the second cylinder (41) is driven to the positioning cylinder (42). The positioning cylinder (42) is provided with a concave conical surface (421).

5. The stretching device for a heating element according to claim 1, characterized in that, Includes the first component (1) and the second component (2); The first component (1) includes a first clamp (11) and a receiving clamp (7); The second component (2) includes a second clamp (21), a receiving clamp (7), and a second axial positioning mechanism (4); The first axial positioning mechanism (3) is located on the side of the first component (1) away from the first component (1).

6. The stretching device for a heating element according to claim 5, characterized in that, The first component (1) is driven to connect with the stretching drive mechanism (5); The stretching drive mechanism (5) is used to drive the first component (1) to move along the axial direction of the heating tube (100).

7. The stretching device for a heating element according to claim 5, characterized in that, The second component (2) is driven to connect with the position adjustment mechanism (6); The position adjustment mechanism (6) can adjust the position of the second component (2).

8. The stretching device for a heating element according to claim 5, characterized in that, It also includes a base (9), which is provided with a guide rail post (91), and the second component (2) is slidably connected to the guide rail post (91); The first component (1) is slidably connected to the base (9) via a guide rail slider structure (13).

9. The stretching device for a heating element according to claim 1, characterized in that, The first axial positioning mechanism (3) includes a positioning block (33) and a sensing unit (8); When the positioning block (33) moves to the preset position, the sensing unit (8) sends a signal.

10. The stretching device for a heating element according to claim 9, characterized in that, It also includes a first component (1), which includes a first clamp (11), a receiving clamp (7) and a first axial positioning mechanism (3).

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