Temperature control device for laser welding glass tube

Abstract

The utility model discloses a laser welding glass tube temperature control device which comprises a bottom fastener, and a shell is fixed on the bottom fastener. A heat insulation layer is arranged in the shell, a heat supply layer is arranged in the heat insulation layer, an auxiliary positioning assembly is arranged in the heat supply layer, and the heat supply layer is externally connected with a PID temperature controller. Locking assemblies and heat insulation assemblies are arranged on the surface of the shell. According to the scheme, the preheating and annealing process of the laser welding glass tube can be achieved, the window is formed in the side edge, the device is suitable for side edge welding and surface welding, and the welding process can be observed through the window.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental auxiliary equipment technical field, concretely relates to a laser welding glass tube temperature control device. BACKGROUND

[0002] Preheating and annealing technology as two kinds of common welding processing technologies can reduce or even eliminate the cracks generated in the welding process, and the temperature control system can meet the experimental requirements of preheating and annealing at the same time, and is indispensable in the welding process and is widely used in material preparation and industrial production, semiconductor manufacturing, automobile industry, aerospace industry and other fields.

[0003] In the process of laser welding glass tube, due to the action of laser, the temperature rises sharply, which can cause cracks in the welding process, and the glass tube may be broken seriously, and after the welding is completed, the temperature will drop sharply, which can also cause cracks. In the prior art, preheating and annealing technology is not used, which causes cracks in the whole welding process, and the strength of the welded glass tube is not high and the sealing performance is not good. UTILITY MODEL CONTENTS

[0004] In view of the above problems of the prior art, the utility model provides a laser welding glass tube temperature control device, which solves the problems of cracks in the whole welding process, low strength of the welded glass tube and poor sealing performance caused by not using preheating and annealing technology in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: a laser welding glass tube temperature control device is provided, which comprises a bottom fastener, and an outer shell is fixed on the bottom fastener; the outer shell contains a heat insulation layer, and the heat insulation layer contains a heat supply layer, the heat supply layer is composed of brass, a heating coil and a temperature probe, the main body is brass, the heating coil is uniformly wound in the brass, the heat supply layer contains an auxiliary positioning assembly, and the heating coil and the temperature probe in the brass of the heat supply layer are connected with a PID temperature controller; the surface of the outer shell is provided with a locking assembly and a heat insulation assembly.

[0006] The utility model discloses beneficial effect is: the present scheme is mainly used for the control of preheating and annealing process in laser welding glass tube experiment, can adjust the voltage size of the heating coil buried in the heat supply layer through the PID temperature controller, and further change the current size, because the heating coil has inherent resistance characteristic, and the temperature rises through joule effect after the current is passed, and the temperature drop is mainly realized through heat exchange with the environment, the PID temperature controller can realize the accurate regulation and control of temperature through stepless regulation to input voltage and current, and realizes temperature feedback through temperature probe, the auxiliary positioning assembly can position glass tube processing position, makes glass tube and glass disc adhere and rotates and welds, the locking assembly can open the whole temperature control system, and the glass tube is convenient to take and put, the heat insulation component can reduce the temperature loss in the temperature control system, can realize the side welding of glass tube simultaneously and is convenient for observing the welding process.

[0007] Further, the shell contains an insulating layer, the insulating layer is processed from mica, contains a heat supply layer, the heat supply layer is processed from brass, the heat supply layer brass contains a heating coil, and also contains a temperature probe, the heating coil and the temperature probe in the heat supply layer brass are connected with a PID temperature controller.

[0008] The beneficial effects of the above technical solutions are: the insulating layer prevents the temperature loss of the temperature control system, the PID temperature controller can adjust the voltage size of the heating coil buried in the heat supply layer, and further change the current size, because the heating coil has inherent resistance characteristic, and the temperature rises through joule effect after the current is passed, and the temperature drop is mainly realized through heat exchange with the environment, realizes temperature regulation and control, and the temperature probe feeds back real-time temperature, so that the actual temperature is the temperature set by the PID temperature controller.

[0009] Further, the auxiliary positioning assembly includes an auxiliary positioning block and an auxiliary positioning slot, and the auxiliary positioning slot is fixed to the experiment platform through a positioning support; the auxiliary positioning slot has an auxiliary positioning block matched with a sliding groove, a jackscrew sleeve is fixed on the auxiliary positioning slot, and the jackscrew sleeve has a jackscrew 1 matched with a screw thread; the auxiliary positioning block has a jackscrew 2 connected with a screw thread, and the jackscrew 2 is also matched with an auxiliary positioning sliding groove through hole.

[0010] The beneficial effects of the above technical solutions are: the auxiliary positioning block is placed with the glass tube and the glass disc, the glass disc is pushed against by the jackscrew 1, so that the glass disc is tightly attached to the glass tube, and the front end of the jackscrew 1 is a hemispherical structure, which can reduce the friction during rotary welding. After the auxiliary positioning block completes the auxiliary positioning work, the auxiliary positioning slot pulls it out to the glass tube and the glass disc in the air through the jackscrew 2, further reduces the friction during rotary welding, and can realize the rotary welding of the glass tube and the glass disc.

[0011] Further, the locking assembly includes a buckle and a hook, the buckle is fixed to the upper half of the temperature control system shell, and the hook is fixed to the lower half of the temperature control system.

[0012] The beneficial effects of the above technical solution are that the hook is matched with the buckle to realize the closing and opening of the upper and lower two parts of the temperature control system, and the glass tube is convenient to take and place.

[0013] Further, the heat insulation assembly comprises two baffles and a side baffle, the two baffles are fixed to the outer surface of the central circular through hole of the temperature control system, and the side baffle is fixed to the side of the shell of the temperature control system.

[0014] The beneficial effects of the above technical solution are that the two baffles can reduce the diameter of the central circular through hole of the temperature control system, reduce the temperature loss during preheating and annealing, when the two baffles are removed, the glass tube of large size can be welded; the side baffle also reduces the temperature loss of the temperature control system, when the side baffle is removed, the side of the glass tube can be welded, and two welding modes are realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the temperature control device for laser welding glass tube;

[0016] Figure 2 It is a side view of the temperature control device for laser welding glass tube;

[0017] Figure 3 It is a top view of the temperature control device for laser welding glass tube;

[0018] Figure 4 It is a three-dimensional perspective view of the temperature control device for laser welding glass tube.

[0019] Wherein, 1, positioning support; 2, jackscrew; 3, connecting jackscrew; 4, baffle; 5, bottom fastener; 6, PID temperature controller; 7, hinge; 8, shell; 9, heat insulation layer; 10, side baffle; 11, heat supply layer; 12, glass tube; 13, glass disc; 14, buckle; 15, hook; 16, jackscrew sleeve; 17, auxiliary positioning groove; 18, auxiliary positioning block; 19, heating coil. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application are described below to facilitate the understanding of the present application by those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, these changes are obvious, and all the utility model creations utilizing the concept of the present application are within the scope of protection.

[0021] The X-axis direction or the translation direction in the utility model is horizontal direction, the Y-axis direction or the lifting direction is vertical direction perpendicular to the horizontal direction, and the Z-axis direction is the direction perpendicular to the X-axis and the Y-axis.

[0022] As shown in Figure 1 The utility model discloses a laser welding glass tube temperature control device, including bottom fastener 5, bottom fastener 5 is fixed with shell 8, the shell 8 contains heat insulating layer 9, and heat insulating layer 9 contains heat supply layer 11, and heat supply layer 11 is composed of brass, heating coil 19 and temperature probe, and the main part is brass, and heating coil 19 is evenly arranged in brass, and heat supply layer 11 contains auxiliary positioning assembly, and the heating coil 19 in the brass of heat supply layer 11 and temperature probe are connected with PID temperature controller 6, and the surface of shell 8 has locking assembly and heat insulation assembly.

[0023] The utility model mainly is used in the control of preheating and annealing process in laser welding glass tube experiment, can adjust the voltage size of heating coil 19 buried in heat supply layer 11 through PID temperature controller 6, and then changes the current size, because heating coil 19 has inherent resistance characteristic, and the temperature rises through joule effect after passing in current, and temperature drop mainly realizes through heat exchange with environment, and PID temperature controller 6 can realize accurate regulation and control of temperature through stepless regulation of input voltage and current, and realizes temperature feedback through temperature probe, and its auxiliary positioning assembly can position glass tube 12 processing position, makes glass tube 12 and glass disc 13 carry out the bonding rotary welding, and locking assembly can open the whole temperature control system, and it is convenient to take and place glass tube 12, and heat insulation assembly can reduce the temperature loss in temperature control system, and can realize the side welding of glass tube 12 and facilitate to observe the welding process.

[0024] As shown in Figure 2 Locking assembly includes buckle 14 and hook 15, and buckle 14 is fixed on the upper half of temperature control system shell 8, and hook 15 is fixed on the lower half of temperature control system.

[0025] As shown in Figure 2 And Figure 3 Heat insulation assembly includes two baffle plates 4 and a side baffle plate 10, and the two baffle plates 4 are fixed on the outer surface of the central circular hole of temperature control system, and the side baffle plate 10 is fixed on the side of temperature control system shell 8.

[0026] As shown in Figure 4As shown, the auxiliary positioning assembly includes an auxiliary positioning block 18 and an auxiliary positioning slot 17, the auxiliary positioning slot 17 is fixed on the experimental platform through the positioning support 1; the auxiliary positioning slot 17 has the auxiliary positioning block 18 matched through the sliding groove, the auxiliary positioning slot 17 is fixed with the jackscrew sleeve 16, and the jackscrew sleeve 16 has the jackscrew 2 matched through the thread; the auxiliary positioning block 18 is threadedly connected with the connecting jackscrew 3, and the connecting jackscrew 3 is matched with the auxiliary positioning sliding groove through hole. The auxiliary positioning assembly is integrally made of steel and can withstand high temperature.

[0027] In one embodiment, the positioning support 1 is fixed on the experimental platform, the auxiliary positioning slot 17 is fixed on the positioning support 1, the jackscrew sleeve 16 and the auxiliary positioning block 18 are fixed and matched on the auxiliary positioning slot 17, the buckle 14 is opened, the temperature control system is opened, the glass tube 12 is placed, one end of the glass tube 12 is clamped on the three-jaw chuck, the other end of the glass tube 12 is attached to the glass disc 13 and placed on the auxiliary positioning block 18 for centering, the jackscrew 2 is used to push the glass disc 13 through the jackscrew sleeve 16, the connecting jackscrew 3 is threadedly connected with the auxiliary positioning block 18, the auxiliary positioning block 18 is pulled out through the auxiliary positioning slot 17, which does not affect the rotation of the glass tube 12 and the glass disc 13 attached to each other, the front end of the jackscrew 2 is designed in a spherical shape to reduce contact and friction when the glass tube 12 rotates. The required preheating temperature is adjusted through the PID temperature controller 6, during welding, the glass tube 12 starts to rotate together with the glass disc 13, the laser beam is shot through the middle of the baffle 4, directly acting on the glass disc 13, after the welding is completed, the slow annealing process is adjusted through the PID temperature controller 6. If the baffle 4 is removed, the inner diameter of the temperature control system can be increased to realize the welding of large-size glass tubes.

[0028] In another embodiment, the positioning support 1 is fixed on the experimental platform, the auxiliary positioning slot 17 is fixed on the positioning support 1, the jackscrew sleeve 16 and the auxiliary positioning block 18 are fixed and matched on the auxiliary positioning slot 17, the buckle 14 is opened, the temperature control system is opened, the glass tube 12 is placed, one end of the glass tube 12 is clamped on the three-jaw chuck, the other end of the glass tube 12 is attached to the glass disc 13 and placed on the auxiliary positioning block 18 for centering, the jackscrew 2 is used to push the glass disc 13 through the jackscrew sleeve 16, the connecting jackscrew 3 is threadedly connected with the auxiliary positioning block 18, the auxiliary positioning block 18 is pulled out through the auxiliary positioning slot 17, which does not affect the rotation of the glass tube 12 and the glass disc 13 attached to each other, the front end of the jackscrew 2 is designed in a spherical shape to reduce contact and friction when the glass tube 12 rotates. The required preheating temperature is adjusted through the PID temperature controller 6, during welding, the glass tube 12 starts to rotate together with the glass disc 13, the laser beam is shot through the middle of the baffle 4, directly acting on the glass disc 13, after the welding is completed, the slow annealing process is adjusted through the PID temperature controller 6. If the baffle 4 is removed, the inner diameter of the temperature control system can be increased to realize the welding of large-size glass tubes.

[0029] In summary, the present application can realize the preheating and annealing treatment of laser welding glass tube, and can realize two different welding methods and weld different glass tube sizes.

Claims

1. A laser welded glass tube temperature control apparatus, characterized by: Including the bottom fastener (5), the bottom fastener (5) is fixed with the shell (8);The shell (8) contains the heat insulation layer (9), the heat insulation layer (9) contains the heat supply layer (11), the heat supply layer (11) contains the auxiliary positioning assembly, the heat supply layer (11) is circumscribed with PID temperature controller (6);The surface of the shell (8) has locking assembly and heat insulation assembly.

2. The laser welded glass tube temperature control apparatus of claim 1, wherein: The shell (8) is processed by stainless steel, contains the heat insulation layer (9), the heat insulation layer (9) is processed by mica, contains the heat supply layer (11), the heat supply layer (11) is processed by brass, contains the heating coil and temperature probe, and is connected with PID temperature controller (6).

3. The laser welded glass tube temperature control apparatus of claim 1, wherein: The auxiliary positioning assembly includes auxiliary positioning block (18) and auxiliary positioning slot (17), the auxiliary positioning slot (17) is fixed on the experimental platform by positioning support (1);The auxiliary positioning slot (17) has sliding groove matched auxiliary positioning block (18), the auxiliary positioning slot (17) is fixed with the top silk sleeve (16), the top silk sleeve (16) has threaded top silk (2);The auxiliary positioning block (18) has threaded connection connecting top silk (3), the connecting top silk (3) is matched with auxiliary positioning sliding groove through hole.

4. The laser welded glass tube temperature control apparatus of claim 1, wherein: The locking assembly includes buckle (14) and hook (15), the buckle (14) is fixed on the upper half of the temperature control system shell (8), and the hook (15) is fixed on the lower half of the temperature control system.

5. The laser welded glass tube temperature control apparatus of claim 1, wherein: The heat insulation assembly includes two baffles (4) and a side baffle (10), the two baffles (4) are fixed on the outer surface of the central circular through hole of the temperature control system, and the side baffle (10) is fixed on the side of the temperature control system shell (8).

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