A fixing structure of a polyurethane glass polishing head surface grinder

Abstract

The utility model relates to a kind of fixing structure of polyurethane glass polishing grinding head surface grinding machine, including the polishing platform installed on grinder, the rectification component for adjusting the position of polishing grinding head is provided on the polishing platform, and the rectification component includes the disc installed on the back of polishing platform.This fixing structure of polyurethane glass polishing grinding head surface grinding machine uses the self-adapting centering mechanism of center-symmetrical limiting rod, ensures the coaxiality of grinding head central axis and positioning shaft, conical top axle, avoids the revolution of grinding head around the central axis of positioning column, thereby improves the effect of grinding head grinding, avoids abrasive exposure depth deviation, and using the elastic state recovery of spring, thereby auxiliary connecting seat and limiting rod are automatically reset, so that limiting rod automatically moves away from grinding head, provide sufficient space for polishing polyurethane glass polishing grinding head, and through the telescopic control of electric push rod, the range of folding and expansion of limiting rod can be adjusted, and different diameter polyurethane glass polishing grinding head can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane glass polishing head manufacturing technology, specifically a fixing structure for a polyurethane glass polishing head surface grinding machine. Background Technology

[0002] Polyurethane glass polishing heads are key tools for precision polishing in deep glass processing. They are cylindrical in shape and their core function is to combine the elasticity of polyurethane with the abrasiveness of the abrasive to achieve a high gloss finish on the glass surface. The production steps include pretreatment, step mixing, molding, polyurethane curing, demolding, surface treatment, and performance testing. The surface treatment involves using a lathe or milling machine to trim the edges, and then using a grinding machine to grind the surface to expose the abrasive and prevent the polyurethane from covering the abrasive and affecting the polishing process.

[0003] In the current technology, the positioning pins on the grinding machine are used to limit and fix the two ends of the polyurethane glass polishing head, and the positioning pins are driven by a servo motor to rotate the polyurethane glass polishing head. Then, the grinding structure is used to polish the surface of the polyurethane glass polishing head. Using two positioning pins to clamp and position the polyurethane glass polishing head makes it difficult for the central axis of the polyurethane glass polishing head to be collinear with the central axis of the positioning pins. If the central axes of the two are not collinear, the polyurethane glass polishing head will not rotate on its own central axis, but will revolve around the central axis of the positioning pins, thus affecting the polishing accuracy of the surface of the polyurethane glass polishing head and causing uneven abrasive exposure. Therefore, a fixing structure for a polyurethane glass polishing head surface polishing machine is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixing structure for a polyurethane glass polishing head surface grinding machine. It features automatic alignment of the central axis, solving the problem that using two positioning pins to clamp and position the polyurethane glass polishing head makes it difficult to ensure the central axis of the polishing head is collinear with the central axis of the positioning pins. If the two central axes are not collinear, the polishing head will not rotate on its own central axis but will instead revolve around the central axis of the positioning pins, thus affecting the polishing accuracy of the polyurethane glass polishing head surface and causing uneven abrasive exposure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixing structure for a polyurethane glass polishing head surface grinding machine, comprising a grinding table mounted on the grinding machine, wherein a correction component for adjusting the position of the polishing head is provided on the grinding table; The correction assembly includes a disc mounted on the back of the grinding table. The disc is provided with a plurality of limiting components for correcting the position of the polishing head. A mounting cylinder is fixedly mounted on the disc. The mounting cylinder is provided with a connecting component and a reset component for moving and expanding the limiting components. The limiting component includes a frustum base and a limiting rod fixedly installed on the frustum base. The disc has a plurality of guide grooves that are slidably connected to the limiting rod. The connecting component includes a connecting seat sleeved on the mounting cylinder and several connecting rods hinged to the connecting seat, with one end of the connecting rods hinged to the frustum base; The reset component includes two connecting rings sleeved on the mounting cylinder, and the connecting ring near the connecting seat is fixedly connected to the connecting seat. A spring is fixedly connected between the two connecting rings.

[0006] Furthermore, the mounting cylinder is equipped with a control component for controlling the movement of the connecting component away from the disk.

[0007] Furthermore, the control component includes an electric push rod fixedly installed inside the mounting cylinder. The telescopic end of the electric push rod is fixedly connected to a connecting plate for hooking the moving connecting component. The mounting cylinder has a through groove adapted to the connecting plate.

[0008] Furthermore, a positioning shaft for supporting the polishing head is rotatably mounted on the grinding table. One end of the positioning shaft is provided with a polyurethane glass polishing head to be ground, and the other end of the polyurethane glass polishing head is provided with a conical top shaft mounted on the grinding machine.

[0009] Furthermore, the number of the limiting components, connecting rods, and guide grooves is no less than four, and they are symmetrically distributed along the central axis of the grinding table.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: The fixed structure of this polyurethane glass polishing head surface grinding machine, through the setting of a correction component and the self-adaptive centering mechanism of a centrally symmetrical limiting rod, ensures the coaxiality of the grinding head's central axis with the positioning axis and the conical top axis, preventing the grinding head from revolving around the central axis of the positioning column, thereby improving the grinding effect and avoiding deviations in abrasive exposure depth. Moreover, the spring's compression state is used to restore its elastic state, thereby assisting the connecting seat and the limiting rod to automatically reset, allowing the limiting rod to automatically move away from the grinding head, providing sufficient space for grinding polyurethane glass polishing heads. Furthermore, the extension and retraction control of the electric push rod can adjust the retraction and expansion range of the limiting rod, which can accommodate polyurethane glass polishing heads of different diameters. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of the correction component; Figure 3 This is an enlarged view of the limiting component, control component, and reset component of the present invention. Figure 4 This is an exploded view of the structural control component of this utility model.

[0012] In the diagram: 1. Grinding table; 2. Positioning shaft; 3. Conical top shaft; 4. Polyurethane glass polishing head; 5. Correction assembly; 51. Disc; 511. Guide groove; 52. Limiting component; 521. Frustum base; 522. Limiting rod; 53. Mounting cylinder; 531. Through groove; 54. Connecting component; 541. Connecting seat; 542. Connecting rod; 55. Reset component; 551. Connecting ring; 552. Spring; 56. Control component; 561. Electric push rod; 562. Connecting plate. Detailed Implementation

[0013] 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.

[0014] Example 1: Please refer to Figure 1-4 The fixed structure of a polyurethane glass polishing head surface grinding machine in this embodiment includes a grinding table 1 installed on the grinding machine. A correction component 5 for adjusting the position of the polishing head is provided on the grinding table 1. A positioning shaft 2 for supporting the polishing head is rotatably installed on the grinding table 1. A polyurethane glass polishing head 4 to be polished is provided at one end of the positioning shaft 2. A conical top shaft 3 installed on the grinding machine is provided at one end of the polyurethane glass polishing head 4. The conical top shaft 3 is installed at the drive end of the grinding machine, so that the feed and rotation of the conical top shaft 3 can be controlled by the drive end.

[0015] Example 2: Please refer to Figure 1-4 Based on Embodiment 1, the correction component 5 includes a disc 51 installed on the back of the grinding table 1. The disc 51 is provided with a plurality of limiting components 52 for correcting the position of the polishing head. An installation cylinder 53 is fixedly installed on the disc 51. The installation cylinder 53 is provided with a connecting component 54 and a reset component 55 for driving the limiting components 52 to move and expand. The limiting component 52 includes a frustum base 521 and a limiting rod 522 fixedly installed on the frustum base 521. The disc 51 has a plurality of guide grooves 511 that are slidably connected to the limiting rod 522. The connecting component 54 includes a connecting seat 541 sleeved on the mounting cylinder 53 and a plurality of connecting rods 542 hinged to the connecting seat 541, and one end of the connecting rod 542 is hinged to the frustum base 521. The reset component 55 includes two connecting rings 551 sleeved on the mounting cylinder 53, and the connecting ring 551 near the connecting seat 541 is fixedly connected to the connecting seat 541. A spring 552 is fixedly connected between the two connecting rings 551.

[0016] Among them, the number of limiting components 52, connecting rods 542 and guide grooves 511 is not less than four, and they are symmetrically distributed in the center of the grinding table 1. The adaptive centering mechanism of the centrally symmetrical limiting rods 522 ensures the coaxiality of the grinding head center axis with the positioning axis 2 and the conical top axis 4.

[0017] Using the above technical solution, by controlling the connecting component 54 to move away from the disc 51, the spring 552 is compressed. The connecting seat 541 drives the connecting rod 542 to move synchronously, forcing the frustum seat 521 to slide radially along the guide groove 511. The limiting rod 522 retracts and presses against the grinding head. At least four centrally symmetrically distributed limiting rods 522 push the grinding head to be aligned with the central axis and the positioning shaft 2 and the conical top shaft 3 through uniform radial thrust. The electric push rod 561 extends to the initial position. After the compressed spring 552 loses its force, it automatically returns to the initial state, thereby assisting the connecting seat 541 to reset. The limiting rod 522 expands outward and disengages from the grinding head, providing space for grinding the polyurethane glass polishing grinding head 4.

[0018] Example 3: Please refer to Figure 1-4 Based on Embodiment 2, the interior of the mounting cylinder 53 is provided with a control component 56 for controlling the movement of the connecting component 54 away from the disk 51. The control component 56 includes an electric push rod 561 fixedly installed inside the mounting cylinder 53. The telescopic end of the electric push rod 561 is fixedly connected to a connecting plate 562 for hooking the movement of the connecting component 54. The mounting cylinder 53 is provided with a through groove 531 adapted to the connecting plate 562.

[0019] Using the above technical solution, the electric push rod 561 inside the mounting cylinder 53 retracts, hooks onto the connecting plate 562, and drives the connecting seat 541 to move axially along the mounting cylinder 53, thereby compressing the spring 552. The connecting seat 541 then drives the connecting rod 542 to move synchronously, forcing the frustum seat 521 to slide radially along the guide groove 511.

[0020] The working principle of the above embodiments is as follows: The fixed structure of this polyurethane glass polishing head surface grinding machine allows the polyurethane glass polishing head 4 to be polished to be placed between the positioning shaft 2 and the conical top shaft 3 during use. Both ends are initially in contact with the positioning shaft 2 and the conical top shaft 3 respectively, achieving initial axial positioning. However, at this time, the central axis of the grinding head may deviate from the central axis of the positioning shaft 2. The electric push rod 561 inside the mounting cylinder 53 retracts, hooks onto the connecting plate 562, and drives the connecting seat 541 to move axially along the mounting cylinder 53, thereby compressing the spring 552. The connecting seat 541 then drives the connecting rod 542 to move synchronously, forcing the frustum seat 521 to slide radially along the guide groove 511. The limiting rod 522 retracts towards the grinding head and abuts against it. At least four centrally symmetrically distributed limiting rods 522 push the grinding head to be aligned with the central axis and coincide with the positioning shaft 2 and the conical top shaft 3 through uniform radial thrust. Subsequently, the positioning shaft 2 and the conical top shaft 3 are subjected to axial preload, and the electric push rod 561 is controlled to extend to the initial position. After the compressed spring 552 loses its force, it automatically returns to the initial state, thereby assisting the connecting seat 541 to reset. Meanwhile, the limiting rod 522 expands outward and disengages from the grinding head, providing space for grinding the polyurethane glass polishing grinding head 4.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for a polyurethane glass polishing head surface grinding machine, comprising a grinding table (1) mounted on the grinding machine, characterized in that: The grinding table (1) is provided with a correction component (5) for adjusting the position of the polishing head. The correction component (5) includes a disc (51) installed on the back of the polishing table (1). The disc (51) is provided with a plurality of limiting components (52) for correcting the position of the polishing head. A mounting cylinder (53) is fixedly installed on the disc (51). The mounting cylinder (53) is provided with a connecting component (54) and a reset component (55) for driving the limiting components (52) to move and expand. The limiting component (52) includes a frustum base (521) and a limiting rod (522) fixedly installed on the frustum base (521). The disc (51) has a plurality of guide grooves (511) that are slidably connected to the limiting rod (522). The connecting component (54) includes a connecting seat (541) sleeved on the mounting cylinder (53) and a plurality of connecting rods (542) hinged to the connecting seat (541), and one end of the connecting rod (542) is hinged to the frustum base (521); The reset component (55) includes two connecting rings (551) sleeved on the mounting cylinder (53), and the connecting ring (551) near the connecting seat (541) is fixedly connected to the connecting seat (541), and a spring (552) is fixedly connected between the two connecting rings (551).

2. The fixing structure of a polyurethane glass polishing head surface grinding machine according to claim 1, characterized in that: The mounting cylinder (53) is equipped with a control component (56) for controlling the connecting component (54) to move away from the disk (51).

3. The fixing structure of a polyurethane glass polishing head surface grinding machine according to claim 2, characterized in that: The control component (56) includes an electric push rod (561) fixedly installed inside the mounting cylinder (53). The telescopic end of the electric push rod (561) is fixedly connected to a connecting plate (562) for hooking the moving connecting component (54). The mounting cylinder (53) has a through groove (531) adapted to the connecting plate (562).

4. The fixing structure of a polyurethane glass polishing head surface grinding machine according to claim 1, characterized in that: The grinding table (1) is rotatably mounted with a positioning shaft (2) for supporting the polishing head. One end of the positioning shaft (2) is provided with a polyurethane glass polishing head (4) to be ground. One end of the polyurethane glass polishing head (4) is provided with a conical top shaft (3) mounted on the grinding machine.

5. The fixing structure of a polyurethane glass polishing head surface grinding machine according to claim 1, characterized in that: The number of the limiting component (52), connecting rod (542) and guide groove (511) is not less than four, and they are symmetrically distributed along the central axis of the grinding table (1).

Images