Glass tube fusion sealing jig

Abstract

The application provides a glass tube fusion sealing jig, and relates to the technical field of tool jigs, which comprises a base plate and a guide rail arranged on the base plate. Two sliding blocks are slidingly arranged on the guide rail. A pair of clamping jaws are oppositely arranged on the two sliding blocks, and vertical grooves are arranged on the opposite surfaces of the clamping jaws for clamping and fixing glass tubes. A vertical positioning block is arranged between the two clamping jaws, and the upper end surface of the vertical positioning block is used for supporting the bottom end surface of the glass tube, so that the vertical positioning and clamping of the glass tube are realized together with the clamping jaws. A driving mechanism connected with the two sliding blocks is used for driving the two sliding blocks to move towards or away from each other along the guide rail. The application can realize rapid feeding and accurate positioning, effectively prevent damage to the glass tube during the feeding process, and improve product yield and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a glass tube fusion sealing fixture. Background Technology

[0002] In the glass tube encapsulation process, the glass tube opening needs to be clamped upwards, and then the opening is heated by a laser to melt it and complete the sealing. Current technology typically uses a sleeve structure to clamp the glass tube; however, this method requires high positioning accuracy for loading and unloading, and the handling mechanism needs to apply significant force to the glass tube during loading and unloading, which can easily damage the glass tube and restrict product yield and production efficiency. Utility Model Content

[0003] To address the problems in the background art, this utility model aims to provide a glass tube melting and sealing fixture that facilitates material loading, reduces damage to the glass tube, and improves production efficiency. This utility model achieves its objective through the following technical solution.

[0004] A glass tube fusion sealing fixture, comprising: substrate; Guide rails are disposed on the substrate; Two sliders are slidably mounted on the guide rail; A pair of grippers are respectively mounted on the two sliders, and vertical grooves are provided on the opposite surfaces of the grippers for clamping and fixing the glass tube. A vertical positioning block is disposed between the two grippers. The upper end face of the vertical positioning block is used to support the bottom end face of the glass tube, thereby working together with the grippers to achieve vertical positioning and clamping of the glass tube. A drive mechanism, connected to the two sliders, is used to drive the two sliders to move closer to or further away from each other along the guide rail.

[0005] Furthermore, the driving mechanism is disposed below the substrate, and the substrate is provided with a plurality of through holes parallel to the guide rail, through which the slider is connected to the driving mechanism.

[0006] Furthermore, the driving mechanism includes a conical cam rod and driven wheels; the upper end of the conical cam rod has a conical surface, and the lower end is rod-shaped; a thrust spring is provided between the conical cam rod and the base plate to provide downward pressure to the conical cam rod; there are two driven wheels, each connected to the corresponding slider through a set of connecting plates passing through the through hole, the two driven wheels are located on the left and right sides of the conical surface, and the rims of the driven wheels are in contact with the conical surface; a tension spring is provided between the two sets of connecting plates, so that the two driven wheels tend to move towards the center and maintain contact with the conical surface.

[0007] Furthermore, each set of connecting plates has two pieces, which are respectively connected to both sides of the corresponding slider; the driven wheel is installed between the two corresponding connecting plates via a rotating shaft.

[0008] Furthermore, it also includes a housing and a cylindrical flange installed below the housing; the housing is fixedly installed on the bottom of the base plate to accommodate the drive mechanism; a circular hole is opened at the bottom of the housing, the rod-shaped part of the tapered cam rod passes through the circular hole and is installed in the cylindrical flange through a linear bearing, so that the bottom end of the rod-shaped part protrudes downward from the cylindrical flange to receive external driving force.

[0009] Furthermore, each of the two grippers has a V-shaped groove on its opposite side, with the openings of the two V-shaped grooves facing each other, for clamping the glass tube.

[0010] Furthermore, each of the two grippers is equipped with a side baffle, which is respectively located on the left and right sides of the V-shaped groove. When the grippers are opened, the side baffle and the V-shaped groove form an annular feeding position.

[0011] Furthermore, the two sliders are mounted on the same guide rail, and a mounting plate with a width greater than the slider is mounted on the slider. The connecting plate is mounted on both sides of the mounting plate.

[0012] Furthermore, the guide rail is provided with stops at both ends to prevent the slider from sliding out.

[0013] Furthermore, the vertical positioning block is detachably mounted on the substrate, with its top surface serving as a positioning surface and having a preset height.

[0014] Compared to existing technologies, the advantages of this invention are as follows: By combining vertical grooves on a pair of grippers with vertical positioning blocks, this invention enables the glass tube to achieve precise positioning in both the horizontal and vertical directions simultaneously during clamping, thus achieving rapid loading and accurate positioning. This embodiment does not require high loading precision or large loading clamping force, effectively preventing damage to the glass tube during the loading process and improving product yield and production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the glass tube fusion sealing fixture in an embodiment of this utility model; Figure 2 This is a schematic diagram of the drive mechanism in an embodiment of the present invention; Figure 3 This is a side view of the drive mechanism in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the bottom of the glass tube fusion sealing fixture in an embodiment of this utility model; Figure 5 This is a schematic diagram of the gripper structure in an embodiment of the present invention.

[0016] Wherein, 1: base plate; 2: guide rail; 3: slider; 4: gripper; 5: glass tube; 6: vertical positioning block; 7: drive mechanism; 8: box body; 9: cylinder flange; 21: mounting plate; 22: stop block; 41: side baffle; 71: tapered cam rod; 72: driven wheel; 73: thrust spring; 74: connecting plate; 75: tension spring. Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. The connection can be a direct connection or an indirect connection.

[0020] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] One embodiment of this utility model provides a glass tube fusion sealing fixture, such as... Figure 1 The diagram shown is a structural schematic of the glass tube fusion sealing fixture in this embodiment. The glass tube fusion sealing fixture provided in this embodiment includes a substrate 1, a guide rail 2, two sliders 3, a pair of grippers 4, a vertical positioning block 6, and a driving mechanism 7.

[0022] The guide rail 2 is mounted on the substrate 1.

[0023] Two sliders 3 are slidably mounted on the guide rail 2.

[0024] A pair of grippers 4 are respectively mounted on two sliders 3. Vertical grooves are provided on the opposite surfaces of the grippers 4 for clamping and fixing the glass tube 5.

[0025] A vertical positioning block 6 is positioned between two grippers 4. The upper end face of the vertical positioning block 6 is used to support the bottom end face of the glass tube 5, thereby working together with the grippers 4 to achieve vertical positioning and clamping of the glass tube 5.

[0026] The drive mechanism 7 is connected to the two sliders 3 and is used to drive the two sliders 3 to move closer to or further away from each other along the guide rail 2.

[0027] The base plate 1 serves as the foundation platform for the fixture, ensuring the secure installation of other components and improving the overall structural stability. One or two linear guide rails 2 are fixedly mounted on the base plate 1, guiding the sliding direction of the slider 3. The guide rails 2 ensure that the slider 3 can only move along a predetermined path, guaranteeing the accuracy and repeatability of the opening and closing motion of the grippers 4. The slider 3, mounted on the guide rails 2, drives the grippers 4 to move synchronously, completing clamping and opening. The vertical grooves on the two grippers 4 are shaped to match the shape of the glass tube 5, accommodating and holding the glass tube 5. When the grippers 4 approach each other, the grooves contact the surface of the glass tube 5, providing uniform clamping force and preventing the glass tube 5 from rolling or sliding. The material of the grippers 4 can be heat-resistant or elastic to avoid damaging the glass tube 5. A vertical positioning block 6 is positioned between the two grippers 4, its upper surface being a horizontal support surface for direct contact with the bottom end face of the glass tube 5, ensuring a consistent height at the upper opening of the glass tube 5, facilitating the sealing process. The vertical positioning block 6 cooperates with the gripper 4, and after the gripper 4 clamps, it can automatically achieve precise positioning and clamping of the glass tube 5 in three-dimensional space. The driving mechanism 7 can be any mechanism that can drive the slider 3 to move closer or further away from each other along the guide rail 2, and is preferably driven by external force.

[0028] In summary, this embodiment, through the combination of vertical grooves on a pair of grippers 4 and vertical positioning blocks 6, enables the glass tube 5 to achieve precise positioning in both the horizontal and vertical directions simultaneously during clamping, thereby achieving rapid loading and accurate positioning. This embodiment does not require high loading accuracy or large loading clamping force, effectively preventing damage to the glass tube 5 during the loading process and improving product yield and production efficiency.

[0029] In this embodiment, the driving mechanism 7 is disposed below the substrate 1. The substrate 1 has a plurality of through holes parallel to the guide rail 2. The slider 3 is connected to the driving mechanism 7 through the through holes.

[0030] The drive mechanism 7 is located below the substrate 1 and will not affect the feeding process. The slider 3 and the drive mechanism 7 can be connected by connecting rods. The number of connecting rods can be the same as the number of through holes. Preferably, each slider 3 is equipped with two connecting rods, which improves the stability of the slider 3's movement.

[0031] like Figure 2 The diagram shown is a structural schematic of the drive mechanism in this embodiment. In this embodiment, the drive mechanism 7 includes a tapered cam rod 71 and a driven wheel 72.

[0032] The tapered cam rod 71 has a conical surface at the upper end and a rod shape at the lower end; a thrust spring 73 is provided between the tapered cam rod 71 and the base plate 1 to provide downward pressure to the tapered cam rod 71.

[0033] There are two driven wheels 72, each connected to the corresponding slider 3 via a set of connecting plates 74 passing through through holes. The two driven wheels 72 are located on the left and right sides of the conical surface, and the rims of the driven wheels 72 are in contact with the conical surface. A tension spring 75 is provided between the two sets of connecting plates 74, so that the two driven wheels 72 tend to move towards the center and maintain contact with the conical surface.

[0034] The conical surface at the upper end of the conical cam rod 71 has a structure that is narrower at the top and wider at the bottom. The driven wheel 72 is tightly attached to the conical surface, and the connecting plate 74 has a preset height, allowing the driven wheel 72 to move only in the horizontal direction. Therefore, when the conical cam rod 71 moves upward, it can push the two driven wheels 72 to the sides, opening the gripper 4. When the conical cam rod 71 moves downward, the two driven wheels 72 move towards the center under the action of the tension spring 75, clamping the gripper 4. A thrust spring 73 is provided between the conical cam rod 71 and the base plate 1, so that the conical surface is in a lower position when no external force is applied, thus keeping the gripper 4 in a clamped state under normal conditions. This embodiment can achieve synchronous, stepless, and low-friction drive of the two sliders 3, and can be applied to glass tubes 5 with different diameters. Multiple springs preload ensure reliable contact between the driven wheel 72 and the conical surface, preventing disengagement and providing a self-locking function. The cam mechanism can significantly reduce friction and wear, extend the life of the device, and this embodiment has a compact structure, low manufacturing cost, and is easy to maintain, which is conducive to improving production efficiency.

[0035] like Figure 3 The figure shown is a side view of the drive mechanism in this embodiment. In this embodiment, each set of connecting plates 74 has two pieces, which are respectively connected to the two sides of the corresponding slider 3; the driven wheel 72 is installed between the two corresponding connecting plates 74 through a rotating shaft.

[0036] Each set of connecting plates 74 has two pieces, which not only ensures even force distribution on the slider 3 but also facilitates the installation of the driven wheel 72. In this embodiment, the driven wheel 72 can be a ball bearing, and the rotating shaft can be fixedly installed between the two connecting plates 74. This embodiment enables symmetrical distribution of driving force on both sides of the slider 3, improving the rigidity and straightness of the slider 3, preventing torsion or tilting due to unilateral force, and ensuring the positioning accuracy of the glass tube 5 during vertical positioning and clamping. The centralized support of the rotating shaft ensures that the rotation of the driven wheel 72 only revolves around the axis, further reducing friction and wear and extending the service life of the device.

[0037] like Figure 4 The diagram shown is a schematic of the bottom of the glass tube sealing fixture in this embodiment. In this embodiment, the glass tube sealing fixture also includes a housing 8 and a cylindrical flange 9 installed below the housing 8. The housing 8 is fixedly installed on the bottom of the substrate 1 to accommodate the drive mechanism 7. A circular hole is opened at the bottom of the housing 8, through which the rod-shaped portion of the conical cam rod 71 passes and is installed in the cylindrical flange 9 via a linear bearing, so that the bottom end of the rod-shaped portion protrudes downwards from the cylindrical flange 9 to receive external driving force. In use, a cylinder or electric cylinder corresponding to the position of the conical cam rod 71 can be set at the corresponding workstation to push the conical cam rod 71 upwards, causing the gripper 4 to open.

[0038] The housing 8 has an opening at the top, and the base plate 1 covers the opening to form a relatively sealed space, in which the drive mechanism 7 is placed, providing protection and support. The diameter of the circular hole at the bottom of the housing 8 is smaller than the diameter of the conical surface portion, restricting the upper end of the conical cam rod 71 within the housing 8 and limiting its range of motion, thereby determining the maximum opening size of the gripper 4. The cylindrical flange 9 restricts the direction of movement of the conical cam rod 71 through a linear bearing, ensuring vertical movement and improving motion accuracy. Furthermore, the flange of the cylindrical flange 9 can be used for installation, allowing the glass tube melting and sealing fixture provided in this embodiment to be mounted onto components such as production lines or turntables.

[0039] like Figure 5 The diagram shown is a schematic diagram of the gripper structure in this embodiment. In this embodiment, the two grippers 4 are provided with V-shaped grooves on their opposite sides, and the openings of the two V-shaped grooves are opposite to each other for gripping the glass tube 5.

[0040] The glass tube 5 is clamped in two V-shaped grooves, which enables bidirectional oblique clamping and precise vertical positioning of the glass tube 5. This not only improves positioning accuracy but also enables quick loading and unloading and universal compatibility, thereby increasing production efficiency and reducing replacement costs.

[0041] In this embodiment, each of the two grippers 4 is equipped with a side baffle 41. The two side baffles 41 are respectively located on the left and right sides of the V-shaped groove. When the grippers 4 are opened, the side baffles 41 and the V-shaped groove form an annular feeding position.

[0042] The side baffle 41 can surround the gap between the left and right sides of the two grippers 4 when the grippers 4 are open, forming a ring-shaped feeding position. During feeding, the glass tube 5 only needs to be placed into this ring-shaped feeding position. The glass tube 5 can remain stable under the support of the V-shaped groove of the gripper 4 and the side baffle 41, and is positioned during the closing process of the gripper 4. This embodiment can reduce the precision requirements of the feeding mechanism, improve the feeding efficiency, prevent the glass tube 5 from falling, and improve the stability of the glass tube melting and sealing fixture.

[0043] In this embodiment, two sliders 3 are mounted on the same guide rail 2, and a mounting plate 21 with a width greater than that of the slider 3 is mounted on the slider 3. A connecting plate 74 is mounted on both sides of the mounting plate 21.

[0044] In this embodiment, the two sliders 3 are mounted on the same guide rail 2, ensuring that their movement trajectories are always on the same straight line, naturally achieving relative positioning and preventing the sliders 3 and grippers 4 from shifting, thus improving the gripping stability of the grippers 4. The mounting plate 21 is wider than the slider 3, facilitating the symmetrical mounting of connecting plates 74 on its left and right sides to form a bridge structure, ensuring that the slider 3 is subjected to uniform force and preventing shifting. Corresponding through holes are provided on the base plate 1 to accommodate the connecting plates 74, and the through holes can be designed according to the size of the connecting plates 74 and the movement limit distance of the grippers 4.

[0045] In this embodiment, the guide rail 2 is provided with stops 22 at both ends to prevent the slider 3 from sliding out.

[0046] Among them, the stop blocks 22 at both ends of the guide rail 2 can prevent the slider 3 from sliding out, further improving the operational stability of the glass tube fusion sealing fixture.

[0047] In this embodiment, the vertical positioning block 6 is detachably mounted on the base plate 1, its top surface is the positioning surface, and it has a preset height.

[0048] The vertical positioning block 6 is used to position the glass tube 5 in the vertical direction. By replacing different vertical positioning blocks 6, the openings of glass tubes 5 of different heights can be at the same height, which facilitates the laser's melting and sealing operation. When operating on different glass tubes 5, there is no need to adjust the height of the laser, which can reduce equipment costs and increase the application range of the glass tube melting and sealing fixture.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A glass tube fusion sealing fixture, characterized in that, include: substrate(1); Guide rail (2) is disposed on the substrate (1); Two sliders (3) are slidably mounted on the guide rail (2); A pair of grippers (4) are respectively mounted on the two sliders (3). The opposing surfaces of the grippers (4) are provided with vertical grooves for clamping and fixing the glass tube (5). A vertical positioning block (6) is disposed between the two grippers (4). The upper end face of the vertical positioning block (6) is used to support the bottom end face of the glass tube (5), thereby achieving vertical positioning and clamping of the glass tube (5) together with the grippers (4). The drive mechanism (7) is connected to the two sliders (3) and is used to drive the two sliders (3) to move closer to or further away from each other along the guide rail (2).

2. The glass tube sealing fixture according to claim 1, characterized in that, The driving mechanism (7) is located below the substrate (1). The substrate (1) has several through holes parallel to the guide rail (2). The slider (3) is connected to the driving mechanism (7) through the through holes.

3. The glass tube fusion sealing fixture according to claim 2, characterized in that, The drive mechanism (7) includes a tapered cam rod (71) and a driven wheel (72). The tapered cam rod (71) has a conical surface at its upper end and a rod shape at its lower end; a thrust spring (73) is provided between the tapered cam rod (71) and the base plate (1) to provide downward pressure to the tapered cam rod (71); There are two driven wheels (72), which are connected to the corresponding sliders (3) through a set of connecting plates (74) passing through the through holes. The two driven wheels (72) are located on the left and right sides of the conical surface, and the rims of the driven wheels (72) are in contact with the conical surface. A tension spring (75) is provided between the two sets of connecting plates (74) so ​​that the two driven wheels (72) tend to move towards the center and keep in contact with the conical surface.

4. The glass tube sealing fixture according to claim 3, characterized in that, Each set of connecting plates (74) has two pieces, which are respectively connected to the two sides of the corresponding slider (3); the driven wheel (72) is installed between the two corresponding connecting plates (74) through a rotating shaft.

5. The glass tube fusion sealing fixture according to claim 4, characterized in that, It also includes a housing (8) and a cylindrical flange (9) installed below the housing (8); the housing (8) is fixedly installed on the bottom of the base plate (1) to accommodate the drive mechanism (7); a round hole is opened at the bottom of the housing (8), the rod-shaped part of the tapered cam rod (71) passes through the round hole and is installed in the cylindrical flange (9) by a linear bearing, so that the bottom end of the rod-shaped part protrudes downward from the cylindrical flange (9) to receive external driving force.

6. The glass tube fusion sealing fixture according to claim 1, characterized in that, The two grippers (4) are provided with V-shaped grooves on their opposite sides, and the openings of the two V-shaped grooves are opposite to each other for clamping the glass tube (5).

7. The glass tube fusion sealing fixture according to claim 6, characterized in that, Both grippers (4) are equipped with a side baffle (41). The two side baffles (41) are respectively located on the left and right sides of the V-shaped groove. When the grippers (4) are opened, the side baffles (41) and the V-shaped groove form an annular feeding position.

8. The glass tube fusion sealing fixture according to claim 3, characterized in that, The two sliders (3) are mounted on the same guide rail (2), and a mounting plate (21) with a width greater than the slider (3) is mounted on the slider (3). The connecting plate (74) is mounted on both sides of the mounting plate (21).

9. The glass tube sealing fixture according to claim 8, characterized in that, The guide rail (2) is provided with stops (22) at both ends to prevent the slider (3) from sliding out.

10. The glass tube melting and sealing fixture according to claim 1, characterized in that, The vertical positioning block (6) is detachably mounted on the base plate (1), its top surface is the positioning surface, and it has a preset height.

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