Safety mechanism for preventing upper disc from falling

Abstract

The utility model discloses a safety mechanism for preventing an upper disc from falling, which comprises a lower grinding disc and an upper grinding disc, the upper grinding disc is arranged above the lower grinding disc through a lifting support and a first air cylinder, the lifting support comprises a vertical plate and a lifting plate, the outer side of the vertical plate is provided with a guide support plate, the guide support plate is fixedly arranged on one side of a grinding rack, and the lifting plate is fixedly arranged on the other side of the grinding rack. The guide supporting plate is arranged on the outer side of the vertical plate in a sliding mode, the guide supporting plate is fixedly arranged on one side of the grinding machine frame and used for guiding the upper grinding disc in a sliding mode when the upper grinding disc is adjusted in a lifting mode, and the stability of the upper grinding disc in the lifting adjustment process is improved. And a rack locking mechanism is arranged between the guide supporting plate and the vertical plate, so that the upper grinding disc subjected to lifting adjustment can be locked, the whole upper disc suspension part cannot fall off due to gas interruption or sudden reasons, and the safety of lifting adjustment and use of the upper grinding disc is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a safety mechanism for preventing an upper plate from falling off. Background Art

[0002] A grinding machine is a machine that grinds the surface of a workpiece with a grinding tool coated or embedded with abrasives. It is mainly used to grind high-precision planes, internal and external cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other surfaces in the workpiece. It is used for single-sided grinding and polishing of materials. The surface grinder is a precision grinding and polishing equipment. The material to be ground and polished is placed on a flat grinding disc, which rotates counterclockwise. The correction wheel drives the workpiece to rotate. The workpiece is pressed by gravity or other means. The workpiece and the grinding disc are in relative motion and friction to achieve the purpose of grinding and polishing.

[0003] A double-disc grinder for PCB board production with application number 202210574528.4 in the prior art includes a machine body, a turntable is rotatably arranged on the machine body, a plurality of chassis moving components are arranged in a ring array on the turntable, and the grinding components are symmetrically arranged on the machine body, so that the surface of the PCB board can be polished. At the same time, in the structural design, the chassis moving component can flip the PCB board. After polishing one side of the PCB board, the chassis moving component flips the PCB board and then polishes the other side of the PCB board through another grinding component. The turntable moves the PCB board, and then polishes the two sides of the PCB board through two grinding wheels, which effectively improves the grinding speed of the PCB board and improves the production efficiency. However, when the cylinder is retracted and lifted, it is prevented that the entire upper plate suspension part suddenly falls down due to air failure or other reasons to cause injury, which affects the safety of the upper plate lifting and adjustment. Utility Model Content

[0004] The utility model aims to provide a safety mechanism to prevent the upper plate from falling, so as to solve the problem in the prior art that when the cylinder is retracted and lifted, the entire upper plate suspension part may be prevented from suddenly falling due to gas failure or other reasons, causing injuries, thereby affecting the safety of the upper plate lifting and lowering adjustment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety mechanism to prevent the upper plate from falling, comprising a lower grinding plate and an upper grinding plate, wherein the upper grinding plate is arranged above the lower grinding plate through a lifting bracket and a first cylinder, and the lifting bracket comprises a vertical plate and a lifting plate, a guide support plate is provided on the outer side of the vertical plate, and the guide support plate is fixedly arranged on one side of the grinding machine frame, and a rack locking mechanism is provided between the guide support plate and the vertical plate.

[0006] Furthermore, the vertical plate is configured as a rectangular plate, and one end of the vertical plate is vertically welded to the lifting plate.

[0007] Furthermore, a guide hole is provided inside the guide support plate, and the vertical plate and the guide hole are slidably arranged.

[0008] Furthermore, the rack locking mechanism includes a locking tooth groove arranged on one side of the vertical plate, two transmission rods are arranged inside the guide support plate through the second cylinder, one end of the transmission rod is provided with a locking tooth through the locking plate, and the locking tooth is meshed and connected with the locking tooth groove.

[0009] Furthermore, the second cylinder is a double-head cylinder, and a heat dissipation hole is provided on the guide support plate outside the second cylinder.

[0010] Furthermore, a limiting sliding groove is provided on the inner side of the guide support plate, and the outer side of the locking plate is vertically slidably arranged with respect to the limiting sliding groove.

[0011] Furthermore, the locking plate is configured as a rectangular plate, and the length of the locking tooth groove is greater than the length of the locking plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a guide support plate on the outer side of a vertical plate, the guide support plate is fixedly arranged on one side of a grinding machine frame, a guide hole is opened inside the guide support plate, and the vertical plate and the guide hole are slidably arranged, and the guide support plate is used for sliding guidance when the upper grinding disc is raised and lowered, which is beneficial to improving the stability of the upper grinding disc raising and lowering adjustment.

[0014] The utility model also provides a rack locking mechanism between the guide support plate and the vertical plate, the rack locking mechanism includes a locking tooth groove arranged on one side of the vertical plate, two transmission rods are arranged inside the guide support plate through the second cylinder, one end of the transmission rod is provided with a locking tooth through the locking plate, and the locking tooth is meshed and connected with the locking tooth groove, so that the locking tooth is driven by the second cylinder to be pressed into the locking tooth groove, and the upper grinding disc after lifting and adjustment can be locked, so that the entire upper disc suspension part will not fall due to air failure or sudden reasons, thereby improving the safety of the lifting and adjustment of the upper grinding disc, and the stability of the locking structure is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is the overall structural front view of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the second cylinder and the locking plate of the utility model;

[0018] Figure 3It is an enlarged schematic diagram of the structure at point A of the present utility model.

[0019] In the figure: 1. lower grinding disc; 2. upper grinding disc; 3. lifting plate; 4. first cylinder; 5. guide support plate; 6. guide hole; 7. vertical plate; 8. second cylinder; 9. transmission rod; 10. locking plate; 11. limiting slide groove; 12. locking tooth; 13. locking tooth groove; 14. heat dissipation hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 , Figure 3 In the embodiment of the utility model, a safety mechanism for preventing the upper plate from falling comprises a lower grinding disc 1 and an upper grinding disc 2. The upper grinding disc 2 is arranged above the lower grinding disc 1 through a lifting bracket and a first cylinder 4. The lifting bracket comprises a vertical plate 7 and a lifting plate 3. A guide support plate 5 is arranged on the outer side of the vertical plate 7, and the guide support plate 5 is fixedly arranged on one side of the grinding machine frame. A guide hole 6 is opened inside the guide support plate 5, and the vertical plate 7 is slidably arranged with the guide hole 6. The vertical plate 7 is arranged as a rectangular plate, and one end of the vertical plate 7 is vertically welded to the lifting plate 3. The guide support plate 5 is used for slidingly guiding the upper grinding disc 2 when it is lifted and lowered, which is beneficial to improve the stability of the lifting and lowering adjustment of the upper grinding disc 2.

[0022] like Figure 1 and Figure 2 As shown, in order to prevent the upper plate suspension part from falling due to gas failure or sudden reasons, a rack locking mechanism is provided between the guide support plate 5 and the vertical plate 7, and the rack locking mechanism includes a locking tooth groove 13 arranged on one side of the vertical plate 7. Two transmission rods 9 are provided inside the guide support plate 5 through the second cylinder 8. One end of the transmission rod 9 is provided with a locking tooth 12 through a locking plate 10, and the locking tooth 12 is meshed and connected with the locking tooth groove 13. A limiting slide groove 11 is provided on the inner side of the guide support plate 5, and the outer side of the locking plate 10 is vertically slidably arranged with the limiting slide groove 11. The locking plate 10 is set to a rectangular plate, and the length of the locking tooth groove 13 is greater than the length of the locking plate 10, so that the locking tooth 12 is driven by the second cylinder 8 to be pressed into the locking tooth groove 13 on one side of the vertical plate 7, so that the upper grinding plate 2 after lifting and adjustment can be locked, so that the entire upper plate suspension part will not fall due to gas failure or sudden reasons, thereby improving the safety of the lifting and adjustment of the upper grinding plate 2, and the stability of the locking structure is relatively high.

[0023] like Figure 2 and Figure 3 As shown, in order to lock the inner sides of the two vertical plates 7 at the same time, the second cylinder 8 is a double-headed cylinder, and the locking plate 10 can be driven by the second cylinder 8 to move and adjust toward each other, so that the inner sides of the two vertical plates 7 can be locked, further improving the stability of the locking of the vertical plates 7, and a heat dissipation hole 14 is opened on the guide support plate 5 on the outer side of the second cylinder 8, which is convenient for heat dissipation of the outer side of the second cylinder 8.

[0024] The working principle and use process of the utility model are as follows: when in use, the lifting bracket includes a vertical plate 7 and a lifting plate 3, a guide support plate 5 is provided on the outer side of the vertical plate 7, a guide hole 6 is opened inside the guide support plate 5, and the vertical plate 7 and the guide hole 6 are slidably arranged, and the guide support plate 5 is used for slidingly guiding the upper grinding disc 2 when the upper grinding disc 2 is lifted and lowered, which is beneficial to improving the stability of the lifting and lowering adjustment of the upper grinding disc 2; and a rack locking mechanism is provided between the guide support plate 5 and the vertical plate 7, so that the upper grinding disc 2 after the lifting and lowering adjustment can be locked, so that the entire upper disc suspension part will not fall off due to air failure or sudden reasons, thereby improving the safety of the lifting and lowering adjustment of the upper grinding disc 2, and the stability of the locking structure is relatively high.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A safety mechanism for preventing an upper plate from falling, comprising a lower grinding plate (1) and an upper grinding plate (2), characterized in that: The upper grinding disc (2) is arranged above the lower grinding disc (1) via a lifting bracket and a first cylinder (4); the lifting bracket comprises a vertical plate (7) and a lifting plate (3); a guide support plate (5) is arranged outside the vertical plate (7), and the guide support plate (5) is fixedly arranged on one side of the grinding machine frame; a rack locking mechanism is provided between the guide support plate (5) and the vertical plate (7).

2. The upper plate anti-falling safety mechanism according to claim 1, characterized in that: The vertical plate (7) is configured as a rectangular plate, and one end of the vertical plate (7) is vertically welded to the lifting plate (3).

3. The upper plate anti-falling safety mechanism according to claim 1, characterized in that: A guide hole (6) is provided inside the guide support plate (5), and the vertical plate (7) is slidably arranged with the guide hole (6).

4. The upper plate anti-falling safety mechanism according to claim 1, characterized in that: The rack locking mechanism comprises a locking tooth groove (13) arranged on one side of the vertical plate (7); two transmission rods (9) are arranged inside the guide support plate (5) via a second cylinder (8); one end of the transmission rod (9) is provided with a locking tooth (12) via a locking plate (10); and the locking tooth (12) is meshedly connected with the locking tooth groove (13).

5. The upper plate anti-falling safety mechanism according to claim 4, characterized in that: The second cylinder (8) is a double-headed cylinder, and a heat dissipation hole (14) is provided on the guide support plate (5) outside the second cylinder (8).

6. The upper plate anti-falling safety mechanism according to claim 4, characterized in that: A limiting sliding groove (11) is provided on the inner side of the guide support plate (5), and the outer side of the locking plate (10) is vertically slidably arranged with respect to the limiting sliding groove (11).

7. The upper plate anti-falling safety mechanism according to claim 4, characterized in that: The locking plate (10) is configured as a rectangular plate, and the length of the locking tooth groove (13) is greater than the length of the locking plate (10).

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