Glass polishing clamp for observing and aiming

Abstract

The utility model provides a glass polishing fixture for observing and aiming, which comprises a fixture bottom plate connected with a workbench of a polishing machine, the fixture bottom plate is detachably provided with a positioning assembly used for fixing a supporting disc pasted with polishing leather, the positioning assembly comprises four supporting plates arranged on the fixture bottom plate, and the supporting plates are arranged on the fixture bottom plate. Each supporting plate is provided with at least two step positioning grooves used for containing the supporting discs, each step positioning groove comprises a vertical part and a horizontal part, the vertical part is an arc face matched with the outer diameter of the corresponding supporting disc, and the horizontal part is a plane. The polishing disc can be supported and fixed through the clamp, the required planeness and perpendicularity requirements can be met through one-time installation and coping of the polishing abrasive paper, the polishing disc does not need to be disassembled and assembled frequently, unnecessary rework is avoided, the grinding and installation time of the polishing disc is greatly shortened, and the production efficiency is improved. And the polishing efficiency of the glass for observation and aiming is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass polishing auxiliary supporting and fixing devices for fish sighting, in particular to a glass polishing fixture for fish sighting. Background Art

[0002] In a tank, the sighting mirror is an accessory used to assist in observing enemy vehicles. The main raw material of the sighting mirror is glass. In the production process of the sighting mirror, a surface grinder is usually required to grind the supporting surfaces of the upper and lower polishing discs to ensure the overall flatness and verticality of the sighting mirror glass after polishing. The existing processing equipment requires at least two grinders to cooperate to grind the two opposite surfaces of the polishing disc and the supporting disc, and then grind the polishing skin on the polishing sheet before polishing the glass. This method not only has cumbersome procedures, but also requires repeated disassembly and assembly of the supporting disc and the polishing disc. It is easy to cause deviations in flatness due to repeated installation, resulting in unnecessary rework, taking up more time for grinding and installing the polishing disc, and reducing the polishing efficiency of the sighting glass. Utility Model Content

[0003] In view of this, the utility model provides a clamp for polishing observation glass, which can support and fix the polishing disc through the clamp, and can achieve the required flatness and verticality requirements through one-time installation and grinding of the polishing sandpaper. There is no need to frequently disassemble and install the polishing disc, thus avoiding unnecessary rework, greatly reducing the grinding and installation time of the polishing disc, and improving the polishing efficiency of the observation glass.

[0004] In order to solve the above technical problems, the utility model provides a glass polishing fixture for observation and aiming, comprising a fixture bottom plate connected to a workbench of a polishing machine, a positioning assembly for fixing a support plate with a polishing leather pasted thereon detachably provided on the fixture bottom plate, the positioning assembly comprising four support plates arranged on the fixture bottom plate, each support plate being provided with at least two step positioning grooves for placing the support plate, the step positioning groove comprising a vertical portion and a horizontal portion, the vertical portion being an arc surface adapted to the outer diameter of the support plate, the horizontal portion being a plane, and the horizontal surface of the step positioning groove on the fixture bottom plate being pre-polished to a flatness and a verticality both being near the median value of the tolerance allowable range of glass processing, Since the flatness of the horizontal surface is directly related to the accuracy of the flatness and verticality of the polishing machine's polishing of the polishing leather on the support plate, a machining center is required here to perform precise machining on the horizontal part of the step positioning groove. The new type can support and fix the support plate through a pre-processed fixture, and the sandpaper on the support plate can be installed once in conjunction with the grinding wheel of the polishing machine to achieve flat polishing. This avoids repeated disassembly and assembly of the polishing support plate and repeated grinding of it. One polishing machine can complete the grinding of the sandpaper on the support plate, which is more convenient to operate, greatly improves the polishing efficiency, reduces unnecessary equipment cost investment, and saves time, effort and money.

[0005] The four corners of the upper part of the clamp base plate are respectively provided with fixing grooves for installing the support plate, the lower part of the support plate is inserted in the fixing groove, and ear plates are provided on the outer side walls of the four corners of the clamp base plate, and threaded holes connected to the fixing grooves are provided on the ear plates, and threaded pins for fixing the support plate placed in the fixing grooves are threadedly connected in the threaded holes. The ear plates are convenient for lifting and installing the clamp base plate, and the threaded pins can be used to quickly disassemble and firmly install the support plate, and the support plate can be replaced according to support plates of different diameters. It is also convenient to quickly disassemble the support plate and grind the stepped positioning grooves on the support plate, which is more convenient and practical.

[0006] A counterweight plate is provided on the outer side wall of the bottom plate of the fixture, which facilitates dynamic balance adjustment of the fixture and the support plate with sandpaper placed on the fixture to avoid excessive vibration that causes the processing flatness and surface roughness of the glass to be polished surface to fail to meet the requirements.

[0007] The counterweight plate is fixed to the outer side wall of the fixture bottom plate by screws, so as to facilitate the rapid disassembly and installation of the counterweight plate.

[0008] A mounting hole for mounting the fixture base on the workbench of the polishing machine is provided on the axis of the fixture base. The mounting hole facilitates fastening the fixture base to the fixing rod on the supporting plate of the polishing machine through a nut, which is more convenient.

[0009] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0010] 1. Pre-polish the horizontal surface of the stepped positioning groove on the bottom plate of the fixture until the flatness and verticality are near the median of the tolerance allowable range of glass processing. Since the flatness of the horizontal surface is directly related to the accuracy of the flatness and verticality of the polishing skin on the support plate polished by the polishing machine, a machining center is required here to perform precise machining on the horizontal part of the stepped positioning groove. This new type can support and fix the support plate through a pre-processed fixture, and cooperate with the grinding disc of the polishing machine to install the sandpaper on the support plate once to achieve flat polishing, avoiding repeated disassembly and assembly of the polishing support plate, and repeated grinding of it. One polishing machine can complete the grinding of the sandpaper on the support plate, which is more convenient to operate, greatly improves the polishing efficiency, reduces unnecessary equipment cost investment, and saves time, effort and money.

[0011] 2. The ear plate makes it easy to lift and install the fixture base plate, and the threaded pins make it possible to quickly disassemble and firmly install the support plate. The support plate can be replaced according to support plates of different diameters, and the support plate can be quickly disassembled and the stepped positioning grooves on the support plate can be ground, which is more convenient and practical.

[0012] 3. The counterweight plate can be used to facilitate dynamic balance adjustment of the fixture and the support plate with sandpaper placed on the fixture to avoid excessive vibration, which may cause the processing flatness and surface roughness of the glass to be polished surface to fail to meet the requirements.

[0013] 4. The mounting holes make it easier to fasten the fixture base plate to the fixing rod on the support plate of the polishing machine through nuts, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the glass polishing fixture for observation and aiming of the utility model;

[0015] Figure 2 It is an isometric side view of the glass polishing fixture for observation and aiming of the utility model;

[0016] Figure 3 It is a front view of the glass polishing fixture for observation and aiming of the utility model;

[0017] Figure 4 The utility model is a top view of the glass polishing fixture for observation and aiming.

[0018] Explanation of the reference numerals: 100, fixture base plate; 200, positioning assembly; 210, support plate; 220, stepped positioning groove; 221, vertical portion; 222, horizontal portion; 300, fixing groove; 400, ear plate; 500, threaded pin; 600, counterweight plate; 700, screw; 800, mounting hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0020] like Figure 1-4 As shown: This embodiment provides a glass polishing fixture for observation, including a fixture base plate 100 connected to the workbench of the polishing machine, and a positioning assembly 200 for fixing a support plate with a polishing leather attached thereto can be detachably provided on the fixture base plate 100. The positioning assembly 200 includes four support plates 210 provided on the fixture base plate 100, and each support plate 210 is provided with at least two stepped positioning grooves 220 for placing the support plate. The stepped positioning groove 220 includes a vertical portion 221 and a horizontal portion 222. The vertical portion 221 is an arc surface adapted to the outer diameter of the support plate, and the horizontal portion 222 is a plane. The horizontal surface of the stepped positioning groove 220 on the fixture base plate 100 is polished in advance to a level where the flatness and verticality are both within the allowable tolerance range of glass processing. The value is near, because the flatness of the horizontal surface is directly related to the accuracy of the flatness and verticality of the polishing machine's polishing of the polishing skin on the support plate. Therefore, a machining center is needed here to perform precise processing on the horizontal part 222 of the step positioning groove. The polishing skin can be selected from the brand: Global, model: LP66 polishing skin. This new type can be used to support and fix the support plate through a pre-processed fixture, and the sandpaper on the support plate can be installed once with the grinding wheel of the polishing machine to achieve flat polishing. Repeated disassembly and assembly of the polishing support plate and repeated grinding of it can be achieved with one polishing machine. The grinding operation of the sandpaper on the support plate can be completed, which is more convenient to operate, greatly improves the polishing efficiency, reduces unnecessary equipment cost investment, and saves time, effort and money.

[0021] According to one embodiment of the utility model, Figure 1 and Figure 2As shown, fixing grooves 300 for installing the support plate 210 are respectively provided on the four corners of the upper part of the clamp base plate 100, and the lower part of the support plate 210 is inserted in the fixing groove 300. Ear plates 400 are provided on the outer side walls of the four corners of the clamp base plate 100. The ear plates 400 are provided with threaded holes connected to the fixing grooves 300. The threaded holes are threadedly connected with threaded pins 500 for fixing the support plate 210 placed in the fixing grooves 300. The ear plates 400 facilitate lifting and installation of the clamp base plate 100. The threaded pins 500 can be used to quickly disassemble and firmly install the support plate 210, and the support plate 210 can be replaced according to support plates of different diameters. It is also convenient to quickly disassemble the support plate 210 and grind the stepped positioning grooves 220 on the support plate 210, which is more convenient and practical.

[0022] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, a counterweight plate 600 is provided on the outer wall of the fixture bottom plate 100, and the counterweight plate 600 facilitates dynamic balancing of the fixture and a support plate with sandpaper placed on the fixture to avoid excessive vibration that causes the processing flatness and surface roughness of the glass surface to be polished to fail to meet the requirements.

[0023] The counterweight plate 600 is fixed to the outer side wall of the fixture bottom plate 100 by screws 700 , so as to facilitate the rapid disassembly and installation of the counterweight plate 600 .

[0024] According to another embodiment of the present invention, Figure 1 and Figure 4 As shown, a mounting hole 800 for mounting the fixture base plate 100 on the workbench of the polishing machine is provided on the axis thereof. The mounting hole 800 makes it easier to fasten the fixture base plate 100 to the fixing rod on the support plate of the polishing machine through a nut, which is more convenient.

[0025] The use of the utility model:

[0026] First of all, it should be made clear that the fixture involved in the utility model is mainly used to place the support plate of sandpaper for glass polishing, and cooperate with the polishing machine to realize the auxiliary positioning equipment for grinding the end surface of the sandpaper. The utility model takes the operation of 200-grit sandpaper polishing as an example to explain its usage in detail. When the sandpaper needs to be polished, a support plate of the corresponding diameter is selected in advance according to the diameter of the sandpaper, and a fixture of the corresponding positioning assembly 200 prepared in advance is selected, and the fixture base plate 100 is locked to the fixed axis of the turntable fan of the polishing machine through a lock nut, and then a leveling instrument is used to detect the runout of the rotating fixture base plate 100, and a counterweight is used to adjust the runout of the installed fixture to an appropriate range, and then Finally, the sandpaper is pasted on the support plate, and the back of the support plate is placed on the horizontal plane of the stepped positioning groove 220 on the positioning assembly 200. It should be noted here that the height and flatness of the four stepped positioning grooves 220 meet the requirements of machining accuracy. The flatness and verticality can be ensured by a machining center. Then the grinding wheel of the polishing machine can be started to grind the sandpaper. The utility model can support and fix the polishing plate through a clamp, and the required flatness and verticality requirements can be achieved by installing and grinding the polishing sandpaper once. There is no need to frequently disassemble and assemble the polishing plate, which avoids unnecessary rework, greatly reduces the grinding and installation time of the polishing plate, and improves the polishing efficiency of observation glass.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A glass polishing fixture for sighting, comprising a fixture base plate (100) connected to a workbench of a polishing machine, characterized in that: A positioning assembly (200) for fixing a support plate with a polishing leather attached thereto is detachably provided on the fixture base plate (100), the positioning assembly (200) comprising four support plates (210) arranged on the fixture base plate (100), each of the support plates (210) being provided with at least two stepped positioning grooves (220) for placing the support plate, the stepped positioning grooves (220) comprising a vertical portion (221) and a horizontal portion (222), the vertical portion (221) being an arc surface adapted to the outer diameter of the support plate, and the horizontal portion (222) being a plane.

2. The glass polishing fixture for sighting as claimed in claim 1, characterized in that: The four corners of the upper portion of the clamp bottom plate (100) are respectively provided with fixing grooves (300) for mounting the support plate (210), and the lower portion of the support plate (210) is inserted into the fixing grooves (300).

3. The sight glass polishing fixture as claimed in claim 2, characterized in that: Ear plates (400) are arranged on the outer side walls of the four corners of the clamp base plate (100), and the ear plates (400) are provided with threaded holes connected to the fixing grooves (300), and threaded pins (500) are connected to the threads in the threaded holes for fixing the support plate (210) placed in the fixing grooves (300).

4. The sight glass polishing fixture as claimed in claim 3, characterized in that: A counterweight plate (600) is arranged on the outer side wall of the fixture bottom plate (100).

5. The sight glass polishing fixture as claimed in claim 4, characterized in that: The counterweight plate (600) is fixed to the outer side wall of the fixture bottom plate (100) by means of screws (700).

6. The sight glass polishing fixture as claimed in claim 5, characterized in that: The axis of the fixture base plate (100) is provided with a mounting hole (800) for mounting it on a workbench of a polishing machine.

Images