A floating polishing head

Abstract

The utility model discloses a kind of floating polishing head, including connecting seat, floating assembly, polishing seat, polishing brush and fastener, the connecting seat is connected on the motor transmission shaft of polishing equipment, the floating assembly is connected between the connecting seat and the polishing seat, and the polishing seat can be axially floated relative to the connecting seat, and the fastener is used to fix the polishing brush on the polishing seat.The utility model can realize the self-adaptive compensation of polishing head height, ensure that the polishing brush of each polishing head can be evenly contacted with glass substrate surface, so that the polishing effect of each glass substrate is uniform, improve yield rate.Meanwhile, floating assembly can absorb and buffer the impact between polishing brush and glass substrate, avoid polishing head or glass substrate damage due to rigid impact.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and specifically to a floating polishing head. Background Technology

[0002] In the glass substrate surface polishing process, to improve polishing efficiency, multi-axis polishing equipment is usually used to polish multiple glass substrates simultaneously. Existing multi-axis polishing equipment has polishing heads directly fixed to the motor's drive shaft via rigid connecting seats. During operation, multiple glass substrates are first fixed on a fixture, then the multi-axis polishing equipment is started. The motor drives multiple polishing heads to rotate, and simultaneously, a single lifting mechanism drives multiple polishing heads to descend together, allowing multiple polishing heads to polish multiple glass substrates independently.

[0003] However, due to tolerances in machining and assembly, the actual height of each polishing head varies. Additionally, the glass substrate on the fixture may have thickness or clamping tolerances. When the lifting mechanism drives multiple polishing heads down to the polishing station, it cannot ensure that all polishing heads make simultaneous and uniform contact with the glass substrate surface. This results in some polishing heads applying excessive contact pressure to the glass substrate, which can easily damage those polishing heads or the glass substrate due to rigid impact. Conversely, some polishing heads applying insufficient contact pressure may result in inadequate polishing of those sections of the glass substrate. Consequently, the overall polishing effect is poor, affecting the product yield. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this invention provides a floating polishing head that can achieve adaptive compensation of the polishing head height, ensuring that the polishing brushes of each polishing head can make uniform contact with the surface of the glass substrate, resulting in a uniform polishing effect for each glass substrate and improving the yield rate. Simultaneously, the floating component can absorb and buffer the impact between the polishing brushes and the glass substrate, preventing damage to the polishing head or glass substrate due to rigid collisions.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A floating polishing head includes a connecting seat, a floating component, a polishing seat, a polishing brush, and fasteners. The connecting seat is connected to the motor drive shaft of a polishing device. The floating component is connected between the connecting seat and the polishing seat, enabling the polishing seat to float axially relative to the connecting seat. The fasteners are used to fix the polishing brush on the polishing seat.

[0006] As a further improvement to the above technical solution, the floating component includes a connecting sleeve and a spring. One end of the connecting sleeve is provided with an inner flange, and one end of the polishing seat is provided with an outer flange. The inner wall of the connecting sleeve is slidably sleeved on the outer periphery of the outer flange. The connecting sleeve is connected to the connecting seat. The inner flange abuts against the outer flange to limit the sliding stroke of the polishing seat. The two ends of the spring abut against the connecting seat and the polishing seat, respectively.

[0007] As a further improvement to the above technical solution, the inner wall of the connecting sleeve is provided with an anti-rotation protrusion, and the outer periphery of the outer flange is provided with an anti-rotation plane, and the anti-rotation protrusion slides in cooperation with the anti-rotation plane.

[0008] As a further improvement to the above technical solution, the number of the anti-rotation protrusions and the anti-rotation planes are both two and symmetrically arranged.

[0009] As a further improvement to the above technical solution, the outer periphery of the connecting sleeve is formed with a stepped shaft segment, the stepped shaft segment including a large diameter segment and a small diameter segment, the small diameter segment is provided with an external thread, and one end of the connecting seat is provided with a first threaded hole that mates with the external thread.

[0010] As a further improvement to the above technical solution, the outer periphery of the connector is provided with at least two first snap-fit ​​surfaces, and the large-diameter section is provided with at least two second snap-fit ​​surfaces. Both the first snap-fit ​​surfaces and the second snap-fit ​​surfaces are used for clamping external tools.

[0011] As a further improvement to the above technical solution, the connecting seat is provided with a first receiving groove, and one end of the polishing seat is provided with a second receiving groove. The first receiving groove and the second receiving groove are respectively used to accommodate the two ends of the spring.

[0012] As a further improvement to the above technical solution, the fastener is a first bolt, the polishing brush has a first mounting hole in the middle for the threaded portion of the first bolt to pass through, and the polishing seat has a second threaded hole at the end away from the second receiving groove that is threadedly engaged with the first bolt.

[0013] As a further improvement to the above technical solution, the first mounting hole is a stepped hole to accommodate the head of the first bolt and allow the head of the first bolt to sink into the polishing brush.

[0014] As a further improvement to the above technical solution, the connecting seat is fixedly connected to one end of the motor drive shaft by a second bolt. A third receiving groove is provided at the end of the connecting seat away from the first threaded hole. A second mounting hole is provided in the middle of the connecting seat. The third receiving groove is used to accommodate one end of the motor drive shaft. The second mounting hole is for the threaded part of the second bolt to pass through.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a floating polishing head. By setting a floating component between the connecting seat and the polishing seat, when the lifting mechanism of the polishing equipment drives multiple polishing heads to descend together, the polishing brush first abuts against the surface of the glass substrate. As the polishing head continues to descend, the polishing brush and the polishing seat are blocked by the glass substrate and remain stationary. The connecting seat overcomes the resistance of the floating component and undergoes axial displacement relative to the polishing seat. At the same time, the floating component provides a continuous axial force, maintaining a relatively constant contact pressure between the polishing brush and the surface of the glass substrate. Thus, adaptive compensation of the polishing head height can be achieved, ensuring that the polishing brush of each polishing head can make uniform contact with the surface of the glass substrate, making the polishing effect of each glass substrate uniform and consistent, and improving the yield rate. Furthermore, the floating component can absorb and buffer the collision impact between the polishing brush and the glass substrate, avoiding damage to the polishing head or the glass substrate due to rigid collisions. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model; Figure 2 yes Figure 1 A sectional view; Figure 3 yes Figure 1 Exploded view; Figure 4 yes Figure 3 An exploded view from another perspective.

[0018] Reference numerals: 100-connecting seat, 110-first threaded hole, 120-first snap-fit ​​surface, 130-first receiving groove, 140-third receiving groove, 150-second mounting hole, 200-floating component, 210-connecting sleeve, 211-inner flange, 212-anti-rotation protrusion, 213-external thread, 214-second snap-fit ​​surface, 220-spring, 300-polishing seat, 310-outer flange, 311-anti-rotation surface, 320-second receiving groove, 330-second threaded hole, 400-polishing brush, 410-first mounting hole, 500-fastener. Detailed Implementation

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0020] Reference Figures 1 to 4 The present invention provides a floating polishing head, including a connecting seat 100, a floating component 200, a polishing seat 300, a polishing brush 400, and a fastener 500. The connecting seat 100 is connected to the motor drive shaft (not shown in the figure) of the polishing equipment. The floating component 200 is connected between the connecting seat 100 and the polishing seat 300, and enables the polishing seat 300 to float axially relative to the connecting seat 100. The fastener 500 is used to fix the polishing brush 400 on the polishing seat 300.

[0021] Understandably, when the lifting mechanism (not shown in the attached diagram) of the polishing equipment drives multiple polishing heads to descend together, the polishing brush 400 first contacts the surface of the glass substrate. As the polishing head continues to descend, the polishing brush 400 and the polishing seat 300 are blocked by the glass substrate and remain stationary. The connecting seat 100 overcomes the resistance of the floating component 200 and undergoes axial displacement relative to the polishing seat 300. Simultaneously, the floating component 200 provides a continuous axial force, maintaining a relatively constant contact pressure between the polishing brush 400 and the surface of the glass substrate. This enables adaptive compensation of the polishing head height, ensuring that the polishing brush 400 of each polishing head can make uniform contact with the surface of the glass substrate, resulting in a uniform polishing effect for each glass substrate and improving the yield rate. Furthermore, the floating component 200 can absorb and buffer the impact between the polishing brush 400 and the glass substrate, preventing damage to the polishing head or glass substrate due to rigid collisions.

[0022] In some preferred embodiments, the floating component 200 includes a connecting sleeve 210 and a spring 220. One end of the connecting sleeve 210 is provided with an inner flange 211, and one end of the polishing seat 300 is provided with an outer flange 310. The inner wall of the connecting sleeve 210 is slidably sleeved on the outer periphery of the outer flange 310. The connecting sleeve 210 is connected to the connecting seat 100. The inner flange 211 abuts against the outer flange 310 to limit the sliding stroke of the polishing seat 300. The two ends of the spring 220 abut against the connecting seat 100 and the polishing seat 300, respectively.

[0023] Understandably, the inner wall of the connecting sleeve 210 and the outer flange 310 of the polishing seat 300 form a sliding pair, allowing the polishing seat 300 to slide axially along the inner wall of the connecting sleeve 210. Simultaneously, the inner flange 211 of the connecting sleeve 210 acts as a mechanical stop, preventing the polishing seat 300 from disengaging by abutting against the outer flange 310. Initially, the spring 220 is pre-compressed between the connecting seat 100 and the polishing seat 300, providing continuous elastic pressure to the polishing seat 300 towards the glass substrate. When the lifting mechanism drives the polishing head to descend and abut against the glass substrate, the polishing seat 300 slides axially along the inner wall of the connecting sleeve 210, compressing the spring 220. The spring 220 absorbs and buffers the impact between the polishing brush 400 and the glass substrate, and the inner wall of the connecting sleeve 210 guides the polishing seat 300, preventing radial displacement. Moreover, the connecting sleeve 210 and spring 220 have simple structures, low manufacturing costs, are easy to disassemble and assemble, and facilitate subsequent maintenance.

[0024] Furthermore, the inner wall of the connecting sleeve 210 is provided with an anti-rotation protrusion 212, and the outer periphery of the outer flange 310 is provided with an anti-rotation plane 311, with the anti-rotation protrusion 212 and the anti-rotation plane 311 slidingly engaged.

[0025] Understandably, the anti-rotation protrusion 212 and the anti-rotation plane 311 slide together, allowing the polishing seat 300 to slide axially along the inner wall of the connecting sleeve 210. At the same time, it completely restricts the relative rotation between the polishing seat 300 and the connecting sleeve 210. This ensures that the rotational power of the motor drive shaft can be transmitted to the polishing seat 300 and the polishing brush 400 through the connecting seat 100 and the connecting sleeve 210, preventing the polishing seat 300 from slipping and ensuring the polishing effect of the glass substrate.

[0026] Furthermore, the number of anti-rotation protrusions 212 and the number of anti-rotation planes 311 are both two and symmetrically arranged, which can make the torque transmission more balanced, prevent one-sided wear, and extend the service life of the connecting sleeve 210 and the polishing seat 300.

[0027] In some preferred embodiments, the outer periphery of the connecting sleeve 210 is formed with a stepped shaft segment, which includes a large diameter segment and a small diameter segment. The small diameter segment is provided with an external thread 213, and one end of the connecting seat 100 is provided with a first threaded hole 110 that mates with the external thread 213.

[0028] It is understandable that by screwing the external thread 213 of the connecting sleeve 210 into the first threaded hole 110 of the connecting seat 100 until the end face of the connecting seat 100 abuts against the shoulder of the stepped shaft section, the connecting sleeve 210 is conveniently installed and disassembled, facilitating later maintenance or parts replacement.

[0029] Furthermore, the outer periphery of the connector 100 is provided with at least two first snap-fit ​​surfaces 120, and the large-diameter section is provided with at least two second snap-fit ​​surfaces 214. Both the first snap-fit ​​surfaces 120 and the second snap-fit ​​surfaces 214 are used for clamping external tools.

[0030] Understandably, the first snap-fit ​​surface 120 and the second snap-fit ​​surface 214 can provide force points for tools such as wrenches, making it easier to snap the wrench's jaws into the connecting seat 100 and the connecting sleeve 210, thus ensuring the reliable assembly process of the connecting sleeve 210 and the connecting seat 100.

[0031] In some preferred embodiments, the connecting seat 100 is provided with a first receiving groove 130, and one end of the polishing seat 300 is provided with a second receiving groove 320. The first receiving groove 130 and the second receiving groove 320 are respectively used to accommodate the two ends of the spring 220.

[0032] Understandably, the first receiving groove 130 and the second receiving groove 320 can radially limit the two ends of the spring 220, preventing the spring 220 from radially bending and shifting during compression or rebound, ensuring that the spring force of the spring 220 is always transmitted axially, and avoiding jamming or wear of the polishing seat 300 due to radial offset of the spring 220.

[0033] In some preferred embodiments, the fastener 500 is the first bolt, the polishing brush 400 has a first mounting hole 410 in the middle for the threaded portion of the first bolt to pass through, and the polishing seat 300 has a second threaded hole 330 at the end away from the second receiving groove 320 that is threaded with the first bolt.

[0034] Understandably, the threaded part of the first bolt passes through the first mounting hole 410 of the polishing brush 400 and is screwed into the second threaded hole 330 of the polishing seat 300. The head of the first bolt presses the polishing brush 400 tightly onto the polishing seat 300, thereby enabling quick disassembly and assembly and facilitating the replacement of the polishing brush 400.

[0035] Furthermore, the first mounting hole 410 is a stepped hole to accommodate the head of the first bolt and to allow the head of the first bolt to be recessed into the polishing brush 400, thereby preventing the head of the first bolt from protruding and scratching the surface of the glass substrate.

[0036] In some preferred embodiments, the connecting seat 100 is fixedly connected to one end of the motor drive shaft by a second bolt (not shown in the figure). The end of the connecting seat 100 away from the first threaded hole 110 is provided with a third receiving groove 140. The middle part of the connecting seat 100 is provided with a second mounting hole 150. The third receiving groove 140 is used to accommodate one end of the motor drive shaft. The second mounting hole 150 is for the threaded part of the second bolt to pass through.

[0037] Understandably, the end of the motor drive shaft is first preliminarily positioned through the third receiving groove 140 to make the connecting seat 100 concentric with the motor drive shaft. Then, by passing the threaded part of the second bolt through the second mounting hole 150 of the connecting seat 100 and screwing it into the threaded hole of the motor drive shaft, the connecting seat 100 and the motor drive shaft are fixedly connected, thereby facilitating the precise positioning and quick assembly and disassembly of the connecting seat 100.

[0038] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A floating polishing head, characterized in that, The device includes a connecting seat, a floating assembly, a polishing seat, a polishing brush, and fasteners. The connecting seat is connected to the motor drive shaft of the polishing equipment. The floating assembly is connected between the connecting seat and the polishing seat, enabling the polishing seat to float axially relative to the connecting seat. The fasteners are used to fix the polishing brush to the polishing seat. The floating assembly includes a connecting sleeve and a spring. One end of the connecting sleeve has an inner flange, and one end of the polishing seat has an outer flange. The inner wall of the connecting sleeve slides around the outer periphery of the outer flange. The connecting sleeve is connected to the connecting seat. The inner flange abuts against the outer flange to limit the sliding stroke of the polishing seat. The two ends of the spring abut against the connecting seat and the polishing seat, respectively.

2. A floating polishing head according to claim 1, characterized in that, The inner wall of the connecting sleeve is provided with an anti-rotation protrusion, and the outer periphery of the outer flange is provided with an anti-rotation plane. The anti-rotation protrusion and the anti-rotation plane are slidably engaged.

3. A floating polishing head according to claim 2, characterized in that, The number of anti-rotation protrusions and anti-rotation planes are both two and they are arranged symmetrically.

4. A floating polishing head according to claim 1, characterized in that, The outer periphery of the connecting sleeve is formed with a stepped shaft section, which includes a large diameter section and a small diameter section. The small diameter section is provided with an external thread, and one end of the connecting seat is provided with a first threaded hole that mates with the external thread.

5. A floating polishing head according to claim 4, characterized in that, The outer periphery of the connector is provided with at least two first snap-fit ​​surfaces, and the large-diameter section is provided with at least two second snap-fit ​​surfaces. Both the first snap-fit ​​surfaces and the second snap-fit ​​surfaces are used for clamping external tools.

6. A floating polishing head according to claim 1, characterized in that, The connecting seat is provided with a first receiving groove, and one end of the polishing seat is provided with a second receiving groove. The first receiving groove and the second receiving groove are respectively used to accommodate the two ends of the spring.

7. A floating polishing head according to claim 6, characterized in that, The fastener is a first bolt, the polishing brush has a first mounting hole in the middle for the threaded portion of the first bolt to pass through, and the polishing seat has a second threaded hole at the end away from the second receiving groove that is threadedly engaged with the first bolt.

8. A floating polishing head according to claim 7, characterized in that, The first mounting hole is a stepped hole to accommodate the head of the first bolt and to allow the head of the first bolt to sink into the polishing brush.

9. A floating polishing head according to claim 5, characterized in that, The connecting seat is fixedly connected to one end of the motor drive shaft by a second bolt. The end of the connecting seat away from the first threaded hole is provided with a third receiving groove. The middle part of the connecting seat is provided with a second mounting hole. The third receiving groove is used to accommodate one end of the motor drive shaft. The second mounting hole is for the threaded part of the second bolt to pass through.

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