Positioning fixture clamp for processing glass panel

Abstract

This application relates to a positioning fixture for glass panel processing, belonging to the technical field of glass positioning devices. It includes a base rod connected to an actuating mechanism and a slide rod slidably engaged at the end of the base rod. One end of the slide rod passes through the base rod and is connected to the base rod by a compression spring. A vacuum pump with its output end extending out of the slide rod is embedded inside the slide rod. An adsorption chamber with a cavity on one side is provided at the end of the slide rod, and the output end of the vacuum pump extends into the cavity. One side of the adsorption chamber is airtightly fitted to the side of the glass facing away from the processing panel. Several support rods are also hinged at equal intervals along the circumference of the slide rod. Each support rod has a contact plate hinged to its end away from the slide rod, which always remains in contact with the back of the glass. A torsion spring connects the support rods and the slide rod. When the glass is connected to the adsorption chamber, the torsion spring is in a taut state. This application has the effect of uniformizing the force on the glass during processing, providing more stable support for glass panel processing, and increasing the effective processing area of ​​the glass panel.

Description

Technical Field

[0001] This application relates to the field of glass positioning device technology, and in particular to a positioning fixture for glass panel processing. Background Technology

[0002] Optical glass is a special type of glass with specific optical properties, mainly used in the manufacture of optical components such as lenses, prisms, and windows. Its core characteristic lies in the precise control of light (such as refraction, dispersion, and transmission). The manufacturing of optical glass often requires multiple processes, and the processes of engraving, grinding, and polishing require processing one side of the panel. At this time, positioning fixtures are needed to fix the glass panel in a predetermined position.

[0003] However, existing positioning fixtures primarily achieve contact at the edges and corners of optical glass. When processing a single panel of glass, this type of positioning fixture can easily lead to uneven stress distribution on the glass surface. Furthermore, these fixtures may encroach on the processing surface of the glass at the edges and corners, reducing the effective area available for processing. Therefore, there is still significant room for improvement in existing positioning fixtures for glass panel processing. Utility Model Content

[0004] In order to overcome the deficiencies of existing positioning fixtures in glass panel processing and to ensure that the glass is subjected to uniform force during processing, this application provides a positioning fixture for glass panel processing.

[0005] The positioning fixture for glass panel processing provided in this application adopts the following technical solution:

[0006] A positioning fixture for glass panel processing includes a base rod connected to an actuating mechanism and a slide rod slidably engaged at the end of the base rod. One end of the slide rod passes through the base rod and is connected to the base rod by a compression spring. A vacuum pump with its output end extending out of the end of the slide rod is embedded inside the slide rod. An adsorption chamber with a cavity on one side is provided at the end of the slide rod, and the output end of the vacuum pump extends into the cavity. One side of the adsorption chamber is airtightly fitted to the side of the glass facing away from the processing panel.

[0007] The slide rod is also hinged with several support rods at equal intervals along its circumference. Each of the support rods is hinged to an abutment plate that is always in contact with the back of the glass at the end away from the slide rod. A torsion spring is connected between the support rod and the slide rod to provide elastic torsional force. When the glass is connected to the adsorption chamber, the torsion spring is in a taut state.

[0008] Optionally, a shock-absorbing device is installed inside the base rod at the position of the compression spring. The shock-absorbing device includes a shock-absorbing cylinder fixed inside the base rod on the side away from the slide rod, a movable disc slidably passing through the shock-absorbing cylinder, and a movable rod integrally connected to the movable disc on the side near the slide rod. The end of the movable rod passes through the shock-absorbing cylinder and is connected to the slide rod. The shock-absorbing cylinder is filled with shock-absorbing oil, and the movable disc has several through holes for the shock-absorbing oil to pass through.

[0009] Optionally, a rubber sealing gasket is laid along the edge of the cavity on the side of the adsorption chamber where the cavity is opened. The rubber sealing gasket extends outward in the width direction on the side away from the adsorption chamber, and the rubber sealing gasket has elastic extensibility.

[0010] Optionally, the slide rod is provided with a plurality of circumferentially spaced grooves corresponding to the support rods. The grooves extend along the axis of the slide rod, and each of the grooves has a hinge seat slidably engaged. The top side of the hinge seat is hinged to the support rod, and the two ends of the torsion spring are respectively connected to the hinge seat and the support rod. An adaptive spring is connected between the bottom side of the hinge seat and the sidewall of the groove. When the glass is connected to the adsorption chamber, the adaptive spring is in a compressed state.

[0011] Optionally, the abutment plate has an adhesive pad on the side near the glass, the adhesive pad being made of a flexible material.

[0012] Optionally, all of the support rods are electrically controlled telescopic rods, and the support rods are electrically connected to the same control device.

[0013] Optionally, the number of support rods is not less than three.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. This application can provide stable support for the glass panel during the processing of the glass panel, ensuring that the force on the glass panel can be transmitted to all positions, and avoiding excessive stress concentration that could cause the glass to break;

[0016] 2. All structures of the tooling fixture in this application are connected to the same side of the glass panel, so that the panel on the side to be processed is not affected, which can effectively increase the effective area during glass processing.

[0017] 3. The connection structure between this application and the glass will not affect the glass surface and can effectively prevent the blurring effect caused by friction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture for glass panel processing according to this application.

[0019] Figure 2 yes Figure 1 Cross-sectional view at point AA.

[0020] Explanation of reference numerals in the attached drawings: 1. Base rod; 11. Compression spring; 2. Slide rod; 21. Adsorption chamber; 211. Cavity; 22. Slide groove; 23. Hinge seat; 24. Adaptive spring; 3. Vacuum pump; 4. Support rod; 41. Abutment plate; 42. Torsion spring; 5. Shock absorption device; 51. Shock absorption cylinder; 52. Movable disc; 521. Leakage hole; 53. Movable rod; 54. Shock absorption oil; 6. Rubber sealing gasket; 7. Adhesive gasket. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0022] This application discloses a positioning fixture for glass panel processing.

[0023] Reference Figure 1 A positioning fixture for glass panel processing includes a base rod 1 connected to an actuating mechanism and a slide rod 2 slidably engaged at the end of the base rod 1. One sliding end extends into the base rod 1 and is connected to the base rod 1 by a compression spring 11. A vacuum pump 3 is embedded inside the slide rod 2, and an adsorption chamber 21 is integrally connected to the end of the slide rod 2. A cavity 211 is formed on the side of the adsorption chamber 21 away from the slide rod 2, and the output end of the vacuum pump 3 extends into the cavity 211.

[0024] When the tooling fixture of this application is connected to the glass, the side of the adsorption chamber 21 with the cavity 211 is airtightly fitted with the side of the glass away from the processing panel. At this time, the air in the cavity 211 is extracted to form a negative pressure, and the glass can be fixed on the adsorption chamber 21 under the action of atmospheric pressure, forming a stable connection.

[0025] It should be noted that the motion mechanism described in this application is one of a rotating seat, a mounting frame, or a robotic arm, which is a device for placing glass on a processing station or the processing station itself. The motion mechanism provides the mounting base for the tooling fixture of this application.

[0026] Reference Figure 1 and Figure 2Furthermore, several support rods 4 are hinged at equal intervals along the circumference of the slide rod 2. Each support rod 4 has a contact plate 41 hinged to its end furthest from the slide rod 2, which remains in contact with the back of the glass. During glass processing, the structure of the support plate and contact plate 41 provides auxiliary support to the glass, increasing the area of ​​the supported region, which helps to homogenize the stress on the glass and prevents localized stress concentration that could lead to breakage. A torsion spring 42 connects the support rods 4 and the slide rod 2, providing elastic torsional force and thus providing elastic auxiliary support. When the glass is fixed to one side of the adsorption chamber 21, the torsion spring 42 should be taut, meaning that the contact plate 41 provides support to the glass at this time.

[0027] In this application, the compression spring 11 and several torsion springs 42 work together to provide the glass with a reverse resistance force when subjected to force, helping to offset the internal stress of the glass, so that the glass can withstand greater operating or cutting forces during processing. As a processing method that demonstrates the effect of this application, when finely engraving glass, compared with traditional tooling fixtures, the glass positioned by the tooling fixture of this application can achieve a greater engraving depth.

[0028] Reference Figure 1 and Figure 2 Furthermore, a shock-absorbing device 5 is installed inside the base rod 1 at the position of the compression spring 11. The shock-absorbing device 5 can slow down the reset speed when the glass performs an elastic reset action after being subjected to force, avoiding collision between the glass and the workpiece and improving the safety of the processing operation. The shock-absorbing device 5 specifically includes a shock-absorbing cylinder 51 fixed inside the base rod 1 on the side away from the slide rod 2, a movable disc 52 slidably passing through the shock-absorbing cylinder 51, and a movable rod 53 integrally connected to the movable disc 52 on the side near the slide rod 2. The other end of the movable rod 53 passes through the shock-absorbing cylinder 51 and is fixedly connected to the end of the slide rod 2. The shock-absorbing cylinder 51 is filled with shock-absorbing oil 54, and the movable disc 52 has several drainage holes 521 for the shock-absorbing oil 54 to pass through.

[0029] When the slide rod 2 is compressed or reset, it drives the movable rod 53 and the movable disc 52 to slide within the damping cylinder 51. During this process, due to the squeezing action of the movable disc 52, the space inside the damping cylinder 51 on one side of the movable disc 52 becomes smaller. At this time, the damping oil 54 can only flow to the other end of the damping cylinder 51 through the various leakage holes 521, thus hindering the movement of the slide rod 2 and reducing its moving speed.

[0030] Reference Figure 1 and Figure 2 Preferably, a rubber sealing gasket 6 is laid on the side of the adsorption chamber 21 where the cavity 211 is formed, along the edge of the cavity 211. The rubber sealing gasket 6 extends outward in the direction of width away from the side of the adsorption chamber 21, and the rubber sealing gasket 6 has elastic extensibility.

[0031] When the glass is connected to the adsorption chamber 21, the rubber sealing gasket 6 not only provides an airtight seal, ensuring the glass and adsorption chamber 21 are completely fixed together, but also protects the surface structure of the glass and increases the contact area.

[0032] It is worth mentioning that when the rubber sealing gasket 6 is installed on the adsorption chamber 21, the tooling fixture of this application can also achieve complete adsorption on some uneven glass surfaces.

[0033] Reference Figure 1 and Figure 2 Furthermore, the slide rod 2 is provided with several equally spaced grooves 22 extending in the same direction as the axis of the slide rod 2, and multiple hinge seats 23 are slidably engaged within the grooves 22. The number of hinge seats 23 corresponds one-to-one with the number of support rods 4, and the support rods 4 are hinged to the side of the hinge seats 23 closest to the glass. The two ends of the torsion spring 42 are respectively connected to the hinge seats 23 and the support rods 4 to achieve the above functions.

[0034] Furthermore, an adaptive spring 24 is connected between the bottom side of the hinge seat 23 and the side wall of the slide groove 22 along its length. The adaptive spring 24 works in conjunction with the compression spring 11, allowing the support rod 4 to slide along the axis of the slide rod 2 together with it, thus ensuring coordinated movement of the entire tooling fixture. This structure also reduces the sliding of the abutment plate 41 on the glass, preventing excessive wear. Additionally, this structure enhances the auxiliary support capabilities of the support rod 4 and the abutment plate 41.

[0035] When the glass is connected to the adsorption chamber 21, the adaptive spring 24 should be in a compressed state.

[0036] Reference Figure 1 and Figure 2 Preferably, an adhesive pad 7 is laid on the side of the abutment plate 41 closest to the glass, and the adhesive pad 7 is made of a soft material. The function of the adhesive pad 7 is to further protect the surface structure of the glass and prevent the abutment plate 41 from causing wear to the glass during sliding. As a feasible solution of this application, the adhesive pad 7 is made of wool or cotton.

[0037] Reference Figure 1 and Figure 2 The support rods 4 are all electrically controlled telescopic rods, and the support rods 4 are electrically connected to the same control device. The function of the control device is to make the support rods 4 extend or retract synchronously, so as to avoid uneven stress on the abutment plates 41 located at the ends of the support rods 4 during glass processing.

[0038] The support rod 4 in this application is designed as an electrically controlled telescopic rod, which allows the operator to change the length of the support rod 4 at will, thereby adapting to more optical glass panels with different surface areas.

[0039] Reference Figure 1 and Figure 2 The number of support rods 4 should be no less than three to achieve uniform support for the glass panel along the circumference.

[0040] The implementation principle of a positioning fixture for glass panel processing according to an embodiment of this application is as follows:

[0041] This application achieves the positioning of glass panels to be processed on the same side through a vacuum adsorption structure and the design of support rods 4. During this process, the abutment plates 41 at the ends of several support rods 4, which are hinged to the slide rod 2, are pressed tightly against the glass surface, providing stable auxiliary support for the glass. This structure not only increases the glass's resistance to pressure but also disperses the concentrated stress generated inside the glass when subjected to force to various locations.

[0042] Furthermore, this application has a shock-absorbing device 5, which drives the movable plate 52 to move by moving the slide rod 2. The movable plate 52 reduces the space of the shock-absorbing oil 54, so that the shock-absorbing oil 54 generates a reverse force opposite to the moving direction of the slide rod 2 during the movement, thereby reducing the moving speed of the slide rod 2 and effectively preventing the glass from being subjected to excessive force.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning fixture for processing glass panels, characterized in that: The device includes a base rod (1) connected to the actuation mechanism and a slide rod (2) slidably mounted at the end of the base rod (1). One end of the slide rod (2) passes into the base rod (1) and is connected to the base rod (1) by a compression spring (11). A vacuum pump (3) with its output end extending out of the end of the slide rod (2) is embedded inside the slide rod (2). An adsorption chamber (21) with a cavity (211) on one side is provided at the end of the slide rod (2). The output end of the vacuum pump (3) extends into the cavity (211). One side of the adsorption chamber (21) is airtightly fitted to the side of the glass opposite to the processing panel. The slide rod (2) is also hinged with several support rods (4) at equal intervals along its circumference. Each of the support rods (4) is hinged with an abutment plate (41) that is always in contact with the back of the glass at the end away from the slide rod (2). A torsion spring (42) for providing elastic torsional force is connected between the support rod (4) and the slide rod (2). When the glass is connected to the adsorption chamber (21), the torsion spring (42) is in a taut state.

2. The positioning fixture for glass panel processing according to claim 1, characterized in that: A shock-absorbing device (5) is installed inside the base rod (1) at the position of the compression spring (11). The shock-absorbing device (5) includes a shock-absorbing cylinder (51) fixed inside the base rod (1) on the side away from the slide rod (2), a movable disc (52) slidably passing through the shock-absorbing cylinder (51), and a movable rod (53) integrally connected to the movable disc (52) on the side near the slide rod (2). The end of the movable rod (53) passes through the shock-absorbing cylinder (51) and is connected to the slide rod (2). The shock-absorbing cylinder (51) is filled with shock-absorbing oil (54). The movable disc (52) has several through holes (521) for the shock-absorbing oil (54) to pass through.

3. The positioning fixture for glass panel processing according to claim 2, characterized in that: The adsorption chamber (21) has a rubber sealing gasket (6) laid along the edge of the cavity (211) on the side where the cavity (211) is opened. The rubber sealing gasket (6) extends outward in the width direction on the side away from the adsorption chamber (21), and the rubber sealing gasket (6) has elastic extensibility.

4. A positioning fixture for glass panel processing according to claim 3, characterized in that: The slide rod (2) is provided with a plurality of grooves (22) that correspond one-to-one with the support rod (4) along the circumferential direction. The grooves (22) extend along the axis of the slide rod (2), and each of the grooves (22) is slidably fitted with a hinge seat (23). The top side of the hinge seat (23) is hinged to the support rod (4), and the two ends of the torsion spring (42) are respectively connected to the hinge seat (23) and the support rod (4). An adaptive spring (24) is connected between the bottom side of the hinge seat (23) and the side wall of the groove (22). When the glass is connected to the adsorption chamber (21), the adaptive spring (24) is in a compressed state.

5. A positioning fixture for glass panel processing according to claim 1, characterized in that: The abutment plate (41) has an adhesive pad (7) on the side near the glass, the adhesive pad (7) being made of a soft material.

6. The positioning fixture for glass panel processing according to claim 1, characterized in that: All of the support rods (4) are electrically controlled telescopic rods, and all of the support rods (4) are electrically connected to the same control device.

7. A positioning fixture for glass panel processing according to claim 1, characterized in that: The number of support rods (4) is not less than three.

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