Milling machine for glass processing

Abstract

The invention provides a milling machine for glass processing, and relates to the technical field of glass milling, the milling machine comprises a fixed pipe mounted on a middle plate, a telescopic pipe is slidably connected in the fixed pipe in a sealed manner, an internal rod is slidably connected in the telescopic pipe, a ball groove is formed in the upper end of the internal rod, a rolling ball is rotatably connected in the ball groove, and a ball is arranged in the ball groove. A supporting spring is installed at the lower end of the inner rod and abuts against the interior of the telescopic pipe, and a fixing spring is installed at the lower end of the telescopic pipe. According to the milling machine for glass machining, a double-stage adsorption fixing system is adopted, and the technical problem that in traditional equipment, once glass is attached to a suction cup, the position cannot be adjusted is solved; the core innovation of the equipment lies in that a grading adsorption mechanism composed of an inner suction cup and an outer suction cup is designed, the glass fixing process is ingeniously divided into two independent steps of a fine adjustment stage and a fixing stage, and in the initial placement stage, glass is supported on a rotatable rolling ball only through gravity.

Description

Technical Field

[0001] This invention relates to the field of glass milling technology, and more specifically, to a milling machine for glass processing. Background Technology

[0002] In the current glass processing industry, milling machines are core equipment for precision glass product processing. The design of their fixing system directly affects processing accuracy and efficiency. Traditional milling machines generally use vacuum suction cup technology to fix glass workpieces. This method utilizes the principle of negative pressure to achieve stable fixation without damaging the glass surface. However, existing equipment has technical defects. Once the glass is placed on the suction cup surface and the vacuum system is activated, the workpiece is immediately and firmly adsorbed. At this time, it is almost impossible to make fine-tuning of the position. This "one-time positioning" working mechanism is extremely inconvenient in actual operation. Especially when the operator makes a slight deviation during the initial placement, the vacuum must be completely released, the glass must be repositioned, and the adsorption process must be restarted. In the processing of large or ultra-thin glass, this repeated placement-adsorption-release-replacement cycle not only significantly prolongs the production preparation time but also increases the risk of glass breakage. Statistics show that in the field of high-precision glass product processing, the positioning and adjustment process accounts for 15%-25% of the total processing time. This proportion can even be as high as 30% or more in the processing of special-shaped glass.

[0003] The lack of a flexible adjustment mechanism in the fixing system of glass milling machines has multiple negative impacts, becoming a bottleneck restricting the improvement of glass precision processing efficiency. First, in the field of precision processing, millimeter-level or even micrometer-level positional deviations can lead to a significant decrease in finished product quality. The existing equipment's "all-or-nothing" adsorption mechanism makes it difficult for operators to achieve fine adjustments. They can only try to reach the ideal position by repeatedly releasing and re-adsorbing. This method is not only inefficient but also makes it difficult to guarantee the accuracy of the adjustment. Second, frequent adsorption-release cycles will cause accelerated wear of vacuum system components, increasing equipment maintenance costs and failure rates. In a large-scale factory environment, this inefficient adjustment process significantly reduces the effective utilization rate of the equipment, directly affecting production capacity and delivery cycle. More seriously, for some high-value or special process requirements of glass products, each repositioning increases the risk of scratches, breakage, or contamination, increasing the scrap rate. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a milling machine for glass processing to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a milling machine for glass processing, comprising a fixed base and an intermediate plate mounted on the base; further comprising an adjustment mechanism, the adjustment mechanism comprising a fixed tube mounted on the intermediate plate, a telescopic tube slidably connected inside the fixed tube, an internal rod slidably connected inside the telescopic tube, a ball groove at the upper end of the internal rod, a ball rotatably connected inside the ball groove, a support spring mounted at the lower end of the internal rod, the support spring abutting against the inside of the telescopic tube, a fixed spring mounted at the lower end of the telescopic tube, the fixed spring abutting against the inside of the fixed tube; further comprising a self-priming mechanism, the self-priming mechanism comprising an outer sleeve mounted on the fixed tube, a negative pressure plate slidably connected inside the outer sleeve, and a plurality of bottom holes equally spaced at the lower end of the outer sleeve, the bottom holes communicating with the outside.

[0006] Preferably, the adjustment mechanism includes an inner suction cup installed at the upper end of a telescopic tube, multiple side grooves evenly spaced on the outer wall of the inner rod, and multiple transverse holes on the side wall of the inner rod, the transverse holes respectively connecting the side grooves and the inner rod. In this technical feature, the inner suction cup, as the direct contact surface of the glass, can provide flexible contact during the fine-tuning stage to avoid scratching the glass surface.

[0007] Preferably, an outer pipe is coaxially and sealed inside the fixed pipe, the outer pipe is connected to an external negative pressure device, and multiple vertical pipes are installed at equal intervals on the outer pipe. A pilot pipe is installed at the upper end of the multiple vertical pipes, and the telescopic pipe is sealed and slidably connected to the pilot pipe. In this technical feature, the fixed pipe provides a stable installation platform and sealing environment as the supporting foundation of the overall structure.

[0008] Preferably, a one-way disc is fixedly installed at the lower end of the pilot tube, and a pressure regulating disc is fitted onto the one-way disc. A microflow hole is opened at the center of the pressure regulating disc. In this technical feature, the one-way disc provides a stable sealing base and pressure transmission platform as a reference surface for pressure threshold control, and the pressure regulating disc, as a pressure sensor, can automatically adjust the sealing state between itself and the one-way disc according to the magnitude of the negative pressure.

[0009] Preferably, multiple guide rods are installed at equal intervals on the upper end of the pressure regulating plate, and a guide plate is fixedly installed inside the pilot tube. The multiple guide rods are slidably connected inside the guide plate. In this technical feature, the guide rods serve as precision guiding components to ensure that the pressure regulating plate can move accurately along the axial direction under pressure to avoid deviation or tilting. The guide plate serves as a guiding reference surface to provide a unified sliding guide for the multiple guide rods to ensure the parallelism and synchronicity of the movement of the pressure regulating plate.

[0010] Preferably, the guide plate has multiple through holes at equal intervals at both ends, and a pressure control spring is installed on the pressure regulating plate. The other end of the pressure control spring abuts against the guide plate. In this technical feature, the through holes at both ends of the guide plate serve as a multi-channel system for negative pressure transmission to ensure that negative pressure can flow freely.

[0011] Preferably, the self-adhesive mechanism further includes a rubber sleeve installed on the fixing tube, and an outer suction cup is installed on the outer wall of the fixing tube. The rubber sleeve, the outer suction cup, and the inner suction cup are all offset in the same direction. The outer suction cup, as the main adsorption surface for secondary fixation, provides strong vacuum adsorption to ensure the glass is firmly fixed during the processing.

[0012] Preferably, a plurality of negative pressure rods are installed at equal intervals on the negative pressure plate, and a plurality of semi-encasing sleeves corresponding to the negative pressure rods are installed at equal intervals on the outer suction cup. The semi-encasing sleeves and the negative pressure rods are coaxially arranged. In this technical feature, the negative pressure rods, as mechanical triggers for pressure transmission, can sense the contact of the glass and convert the mechanical displacement into a vacuum start signal.

[0013] Preferably, when the negative pressure plate is attached to the upper end of the outer sleeve, the upper end of the negative pressure rod and the upper end of the outer suction cup are set on the same plane. The upper end of the outer sleeve is connected to and installed with multiple compensation tubes, and the multiple compensation tubes are connected inside the outer suction cup. In this technical feature, the coplanar setting when the negative pressure plate and the outer sleeve are attached ensures that the cooperation between the negative pressure rod and the outer suction cup avoids trigger failure caused by pre-contact or excessive gap.

[0014] Preferably, a movable frame is slidably connected to the base, and a milling machine is mounted on the movable frame.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a milling machine for glass processing, which has the following beneficial effects: This glass milling machine employs a two-stage adsorption and fixing system, solving the technical pain point of traditional equipment where the glass cannot be adjusted once it is attached to the suction cup. The core innovation of this equipment lies in the design of a graded adsorption mechanism composed of an inner and outer suction cup. This cleverly divides the glass fixing process into two independent steps: a "fine-tuning stage" and a "fixing stage." In the initial placement stage, the glass is supported only by gravity on a rotatable ball. Although the inner suction cup is attached to the glass surface, it does not generate adsorption force. At this time, the operator can freely push the glass for precise positioning and adjustment, overcoming the limitation of "one-time positioning" in traditional equipment. This design improves positioning accuracy, especially for large or complex-shaped glass products. The operator can directly perform millimeter-level fine-tuning without repeatedly releasing the vacuum, ensuring absolute precision in the processing position. This improves the processing accuracy and pass rate of the finished product, and reduces material waste and rework risks caused by inaccurate positioning.

[0016] The equipment employs a precision telescopic structure consisting of a fixed tube, a telescopic tube, and an internal rod. Combined with built-in support and fixing springs, the negative pressure system connects to an external vacuum source via an external pipe and forms a tiered negative pressure transmission network through a vertical tube and a pilot tube. First, after fine-tuning, the negative pressure is activated, and the system prioritizes initial fixation via the side groove and internal suction cup. Subsequently, when the negative pressure exceeds the preset threshold of the pressure control spring, the seal between the pressure regulating plate and the one-way plate is automatically released, and the negative pressure is transmitted to the second-stage system. This drives the telescopic tube to smoothly lower the glass until it contacts the external suction cup and rubber sleeve. During this process, the glass also triggers the negative pressure rod, activating the negative pressure plate in the self-priming mechanism. The compensation tube provides additional suction to the external suction cup, creating a double-safety fixation effect. This progressive negative pressure control not only ensures the stability of the glass throughout the entire fixation process but also achieves a smooth transition from "light fixation for easy adjustment" to "firm fixation for processing," completely eliminating the problems of sudden glass displacement or stress concentration caused by one-time strong adsorption in traditional equipment, creating ideal conditions for high-precision processing.

[0017] This milling machine's unique adaptive negative pressure system provides stability for glass processing. The system, through a carefully designed pressure regulating mechanism consisting of micro-orifices, a one-way disc, and a pressure regulating disc, achieves precise control of the negative pressure transmission process. Once the negative pressure is initially established, the system automatically adjusts the suction force according to the actual weight and size of the glass, preventing excessive negative pressure from causing glass deformation or insufficient negative pressure from failing to securely fix it. Particularly noteworthy is the equipment's self-suction mechanism, which, through the coordinated work of the outer sleeve and the negative pressure disc, provides auxiliary fixing force on top of the main negative pressure system. When the glass descends and contacts the negative pressure rod, the rod pushes the negative pressure disc downward, creating a partial vacuum within the outer sleeve. This additional negative pressure is transmitted to the outer suction cup through a compensation tube, forming an active suction enhancement mechanism. This design ensures that the glass remains stable even when the main negative pressure system fluctuates. Furthermore, the guiding mechanism, composed of multiple guide rods and guide discs, ensures the transmission of negative pressure and mechanical movement.

[0018] The equipment's negative pressure control system adopts an automatic graded activation method, avoiding the complex operation of precisely controlling the opening of vacuum valves required in traditional equipment. This reduces the skill requirements for operators. From the perspective of work efficiency, the equipment simplifies the tedious cycle of "placement-inspection-release-re-placement-re-inspection" into a smooth process of "placement-fine-adjustment-confirmation-fixing," shortening preparation time. This is especially significant for complex workpieces requiring high-precision positioning. This innovation in ease of operation not only improves production efficiency but also reduces the labor intensity and skill threshold for operators, bringing significant economic benefits to glass processing enterprises. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a milling machine for glass processing according to the present invention; Figure 2 This is a schematic diagram of the structure of the inner and outer suction cups in this invention; Figure 3 This is a cross-sectional view of the outer sleeve and fixing tube in this invention; Figure 4 This is a schematic diagram of the structure of the fixing tube and the external suction cup in this invention; Figure 5 This is a cross-sectional view of the telescopic tube and internal rod in this invention. Figure 6 This is a schematic cross-sectional view of the outer nozzle in this invention; Figure 7 This is a schematic diagram of the negative pressure disk in this invention; Figure 8 This is a schematic diagram of the pressure regulating plate in this invention.

[0020] In the diagram: 11. Base; 12. Middle plate; 13. Moving frame; 14. Milling machine; 21. Fixed tube; 22. Telescopic tube; 23. Internal rod; 24. Ball groove; 25. Rolling ball; 26. Support spring; 27. Fixed spring; 28. Inner suction cup; 29. ​​Side groove; 31. Outer sleeve; 32. Negative pressure plate; 33. Bottom hole; 34. Rubber sleeve; 35. Outer suction cup; 36. Negative pressure rod; 37. Semi-enclosed sleeve; 38. Compensating tube; 210. Horizontal hole; 211. Outer tube; 212. Vertical tube; 213. Pilot tube; 214. One-way disc; 215. Pressure regulating disc; 216. Microflow hole; 217. Guide rod; 218. Guide disc; 219. Through hole; 220. Pressure control spring. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0024] Please see Figures 1 to 8A milling machine for glass processing includes a fixed base 11 and an intermediate plate 12 mounted on the base 11; it also includes an adjustment mechanism, which includes a fixed tube 21 mounted on the intermediate plate 12, a telescopic tube 22 slidably connected inside the fixed tube 21, an internal rod 23 slidably connected inside the telescopic tube 22, a ball groove 24 at the upper end of the internal rod 23, a ball 25 rotatably connected inside the ball groove 24, a support spring 26 mounted at the lower end of the internal rod 23, the support spring 26 abutting against the inside of the telescopic tube 22, a fixed spring 27 mounted at the lower end of the telescopic tube 22, the fixed spring 27 abutting against the inside of the fixed tube 21, an inner suction cup 28 mounted at the upper end of the telescopic tube 22, multiple side grooves 29 evenly spaced on the outer wall of the internal rod 23, and multiple transverse holes 210 on the side wall of the internal rod 23, the transverse holes 210 respectively communicating with the side grooves 29 and the internal rod 23, and a fixed... An outer pipe 211 is coaxially and sealed inside the pipe 21. The outer pipe 211 is connected to an external negative pressure device. Multiple vertical pipes 212 are installed at equal intervals on the outer pipe 211. A pilot pipe 213 is installed at the upper end of the multiple vertical pipes 212. A telescopic pipe 22 is slidably and sealed to the pilot pipe 213. A one-way disc 214 is fixedly installed at the lower end of the pilot pipe 213. A pressure regulating disc 215 is fitted onto the one-way disc 214. A micro-flow hole 216 is opened at the center of the pressure regulating disc 215. Multiple guide rods 217 are installed at equal intervals on the upper end of the pressure regulating disc 215. A guide disc 218 is fixedly installed inside the pilot pipe 213, and the multiple guide rods 217 are slidably connected inside the guide disc 218. Multiple through holes 219 are opened at equal intervals at both ends of the guide disc 218. A pressure control spring 220 is installed on the pressure regulating disc 215, and the other end of the pressure control spring 220 abuts against the guide disc 218.

[0025] Before processing the glass, it needs to be placed on the equipment. The glass is placed on multiple rollers 25 by external hoisting equipment. At this time, the weight of the glass will press on the rollers 25 and cause the internal rod 23 to slide downward. The gravity is transmitted to the telescopic tube 22 through the support spring 26. Therefore, the fixed spring 27 is also subjected to the weight of the glass. At this time, both the support spring 26 and the fixed spring 27 will be compressed. As the internal rod 23 moves downward, the glass will adhere to the inner suction cup 28. However, the negative pressure is not activated at this time, so the inner suction cup 28 will not adhere to the glass. Then, when the gravity and the elastic force of the fixed spring 27 are equal, the telescopic tube 22 stops moving downward. At this time, the glass will not adhere to the rubber sleeve 34 and the outer suction cup 35. At this time, the inner suction cup 28 does not have an adsorption force with the glass, so the glass can be pushed for fine adjustment. This allows the glass to complete the fine adjustment process.

[0026] After fine-tuning, the external negative pressure device is activated to generate negative pressure through the external pipe 211. Since negative pressure requires a certain time, and the vertical pipe 212 is directly connected to the pilot pipe 213, the negative pressure first acts on the telescopic pipe 22 and is then transmitted to the inner suction cup 28 through the side groove 29. At this time, the inner suction cup 28 is already attached to the glass, thus generating an adsorption force. Multiple inner suction cups 28 perform the adsorption process, thereby ensuring the synchronous fixation of multiple telescopic pipes 22 and the glass. Since the pressure regulating plate 215 is attached to the one-way plate 214 and applies pressure through the pressure control spring 220, after the inner suction cup 28 and the glass are fixed, negative pressure continues to be generated. After the glass is fixed, the glass is in a vertical position. The direction does not move. When the negative pressure exceeds the elastic force of the pressure control spring 220, the seal between the pressure regulating plate 215 and the one-way plate 214 will be released. At this time, the negative pressure process will also be slowly carried out through the micro-flow hole 216. However, the negative pressure process is relatively slow. The main reason is that the negative pressure is still generated after the seal between the one-way plate 214 and the pressure regulating plate 215 is released. At this time, the negative pressure will be transmitted to the space between the telescopic tube 22 and the fixed tube 21. At this time, the telescopic tube 22 will move downward and the glass will move downward accordingly. Then, the glass lifting box will also press against the negative pressure rod 36 under the rubber sleeve 34 and the external suction cup 35. Then, the downward pushing force will cause the external suction cup 35 to generate negative pressure again to fix the glass, thereby ensuring the stability of the fixation.

[0027] As the glass continues to move downwards, it pushes the negative pressure rod 36 downwards, which in turn drives the negative pressure plate 32 downwards. This causes the negative pressure plate 32 to generate negative pressure, which is then transmitted to the rubber sleeve 34 and the outer suction cup 35 through the compensation tube 38. The glass is already attached to the outer suction cup 35 and the rubber sleeve 34. Under the action of negative pressure, the glass is secondarily adsorbed and fixed until the telescopic tube 22 hits the fixing tube 21, thus completing the complete fixing process. Then, the glass is processed by the milling machine 14.

[0028] Once the processing is complete, the negative pressure of the external equipment is removed, and the gas will directly enter the inner suction cup 28 to contact the negative pressure. It will also slowly flow into the telescopic sleeve and the fixing tube 21 through the micro-flow hole 216, thus releasing the negative pressure and allowing the glass to be released from its fixation.

[0029] The process can be simply described as follows: the glass is placed on multiple rolling balls 25 and an inner suction cup 28. At this time, the glass can be pushed for fine adjustment. After the fine adjustment is completed, negative pressure is generated, which uses the inner suction cup 28 to adsorb and fix the glass. When the force of the pressure control spring 220 is exceeded, the negative pressure will cause the glass to fall. The glass will press against the negative pressure rod 36 to generate negative pressure, and this negative pressure will cause the outer suction cup 35 to adsorb and fix it a second time, thus ensuring the stability of the fixation.

[0030] The self-priming mechanism includes an outer sleeve 31 mounted on a fixed tube 21. A negative pressure plate 32 is slidably connected to the inner side of the outer sleeve 31. Multiple bottom holes 33 are evenly spaced at the lower end of the outer sleeve 31, communicating with the outside. The self-priming mechanism also includes a rubber sleeve 34 mounted on the fixed tube 21. An outer suction cup 35 is mounted on the outer wall of the fixed tube 21. The rubber sleeve 34, the outer suction cup 35, and the inner suction cup 28 are all offset in the same direction. Multiple negative pressure rods 36 are evenly spaced on the negative pressure plate 32. Furthermore, multiple semi-enclosed sleeves 37 corresponding to the negative pressure rod 36 are installed at equal intervals on the outer suction cup 35. The semi-enclosed sleeves 37 and the negative pressure rod 36 are coaxially arranged. When the negative pressure plate 32 is attached to the upper end of the outer sleeve 31, the upper end of the negative pressure rod 36 and the upper end of the outer suction cup 35 are set on the same plane. Multiple compensation tubes 38 are connected to the upper end of the outer sleeve 31, and the multiple compensation tubes 38 are connected inside the outer suction cup 35. A movable frame 13 is slidably connected to the base 11, and a milling machine 14 is installed on the movable frame 13.

[0031] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling machine for glass processing, comprising a fixedly mounted base (11) and an intermediate plate (12) mounted on the base (11); characterized in that: It also includes an adjustment mechanism, which includes a fixed tube (21) installed on the intermediate plate (12), a telescopic tube (22) is slidably connected inside the fixed tube (21), an internal rod (23) is slidably connected inside the telescopic tube (22), a ball groove (24) is opened at the upper end of the internal rod (23), a ball (25) is rotatably connected inside the ball groove (24), a support spring (26) is installed at the lower end of the internal rod (23), the support spring (26) abuts against the telescopic tube (22), a fixed spring (27) is installed at the lower end of the telescopic tube (22), and the fixed spring (27) abuts against the fixed tube (21); it also includes a self-priming mechanism, which includes an outer sleeve (31) installed on the fixed tube (21), a negative pressure plate (32) is slidably connected inside the outer sleeve (31), and a plurality of bottom holes (33) are opened at equal intervals at the lower end of the outer sleeve (31), the bottom holes (33) communicating with the outside.

2. The milling machine for glass processing according to claim 1, characterized in that: The adjustment mechanism includes an inner suction cup (28) installed at the upper end of the telescopic tube (22), a plurality of side grooves (29) are equally spaced on the outer wall of the inner rod (23), and a plurality of transverse holes (210) are opened on the side wall of the inner rod (23), and the transverse holes (210) are respectively connected to the side grooves (29) and the inner rod (23).

3. A milling machine for glass processing according to claim 2, characterized in that: An outer pipe (211) is coaxially and sealed inside the fixed pipe (21). The outer pipe (211) is connected to an external negative pressure device. Multiple vertical pipes (212) are installed at equal intervals on the outer pipe (211). A pilot pipe (213) is installed at the upper end of the multiple vertical pipes (212). The telescopic pipe (22) is sealed and slidably connected to the pilot pipe (213).

4. A milling machine for glass processing according to claim 3, characterized in that: A one-way disc (214) is fixedly installed at the lower end of the pilot tube (213), and a pressure regulating disc (215) is attached to the one-way disc (214). A micro-flow hole (216) is opened at the center of the pressure regulating disc (215).

5. A milling machine for glass processing according to claim 4, characterized in that: Multiple guide rods (217) are installed at equal intervals on the upper end of the pressure regulating plate (215), and a guide plate (218) is fixedly installed inside the pilot guide (213), and the multiple guide rods (217) are slidably connected inside the guide plate (218).

6. A milling machine for glass processing according to claim 5, characterized in that: The guide plate (218) has multiple through holes (219) at equal intervals at both ends. The pressure regulating plate (215) is equipped with a pressure control spring (220), and the other end of the pressure control spring (220) abuts against the guide plate (218).

7. A milling machine for glass processing according to claim 1, characterized in that: The self-priming mechanism also includes a rubber sleeve (34) installed on the fixed tube (21), and an outer suction cup (35) is installed on the outer wall of the fixed tube (21). The rubber sleeve (34), the outer suction cup (35) and the inner suction cup (28) are all offset in the same direction.

8. A milling machine for glass processing according to claim 7, characterized in that: Multiple negative pressure rods (36) are installed at equal intervals on the negative pressure plate (32), and multiple semi-enclosed sleeves (37) corresponding to the negative pressure rods (36) are installed at equal intervals on the outer suction cup (35). The semi-enclosed sleeves (37) and the negative pressure rods (36) are coaxially arranged.

9. A milling machine for glass processing according to claim 8, characterized in that: When the negative pressure plate (32) is attached to the upper end of the outer sleeve (31), the upper end of the negative pressure rod (36) and the upper end of the outer suction cup (35) are set on the same plane. The upper end of the outer sleeve (31) is connected to a plurality of compensation tubes (38), and the plurality of compensation tubes (38) are connected to the outer suction cup (35).

10. A milling machine for glass processing according to claim 1, characterized in that: A movable frame (13) is slidably connected to the base (11), and a milling machine (14) is installed on the movable frame (13).

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