Protective mechanism of numerical control vertical machining center

Abstract

The utility model relates to the technical field of numerical control machining centers, and provides a numerical control vertical machining center protection mechanism which comprises a box body and two protection doors symmetrically arranged on one side of the box body, and further comprises a first square block fixedly installed at one corner, close to the bottom, of one protection door. According to the protective door, when the two protective doors are gradually close to each other, an inserting block is inserted into an inserting groove, upward thrust is applied to a limiting block, a connecting strip is synchronously driven to slide upwards along the outer surface of a second guide rod, a compression spring is compressed, and when the thrust borne by the limiting block disappears, under the reset acting force of the compression spring, the limiting block can slide upwards along the outer surface of the second guide rod. According to the numerical control vertical machining center, the limiting block can be inserted into the limiting groove to limit the inserting block, so that the situation that the protective door is opened due to vibration can be avoided, scrap iron or a broken cutter is prevented from being thrown out, an operator is prevented from being hurt, and the safety of the numerical control vertical machining center is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining centers, in particular to a protection mechanism for a CNC vertical machining center. Background Art

[0002] The comprehensive machining ability of a CNC machining center is relatively strong. After a workpiece is clamped once, it can complete more machining contents, and the machining accuracy is relatively high. For batch workpieces with medium machining difficulty, its efficiency is 5-10 times that of ordinary equipment. The protection mechanism of a CNC machining center is mainly the external protective cover, which can prevent the machined workpiece, iron chips, dust, etc. formed during machining from flying out and causing damage to the staff.

[0003] In the prior art, during the machining of parts by a CNC machining center, when the parts are not clamped tightly, the tool will cause the parts to displace during machining, thereby generating vibration. Seriously, the tool may break. When the existing double-opening protective doors are closed, the operator needs to manually close them. When the closing force is too large, the two protective doors will collide. When the operator does not observe carefully, the protective doors may separate from each other under the action of the collision force, resulting in the situation that the protective doors are not tightly closed. When the CNC machining center vibrates, it may cause the protective doors to open completely, thereby possibly causing iron chips or broken tools to fly out and causing harm to the operator, there are certain safety problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art that during the machining of parts by a CNC machining center, when the parts are not clamped tightly, the tool will cause the parts to displace during machining, thereby generating vibration. Seriously, the tool may break. When the existing double-opening protective doors are closed, the operator needs to manually close them. When the closing force is too large, the two protective doors will collide. When the operator does not observe carefully, the protective doors may separate from each other under the action of the collision force, resulting in the situation that the protective doors are not tightly closed. When the CNC machining center vibrates, it may cause the protective doors to open completely, thereby possibly causing iron chips or broken tools to fly out and causing harm to the operator, there are certain safety problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A protection mechanism for a CNC vertical machining center, comprising: a box body and two protective doors, the two protective doors are symmetrically arranged on one side of the box body, and further comprising:

[0006] Block 1 is fixedly installed at one of the corners near the bottom of one of the protective doors. An insertion block is fixedly installed on one side of Block 1. A limiting groove is opened at the top of the insertion block. Block 2 is fixedly installed at one of the corners near the bottom of the other protective door. A slot is opened on one side of Block 2. A limiting block is movably embedded at the center of the top of Block 2. A connecting bar is fixedly installed at the top of the limiting block. Fixed blocks 2 are fixedly installed on the opposite sides of Block 2 near the top. Guide rods 2 are fixedly installed at the tops of the two fixed blocks 2. The outer surfaces of the two guide rods 2 are symmetrically and movably embedded in the inner wall of the connecting bar.

[0007] Preferably, compression springs are movably sleeved on the outer surfaces of the two guide rods 2. One ends of the two compression springs are respectively fixedly installed at one ends of the two guide rods 2. The other ends of the two compression springs are symmetrically fixedly installed at the bottom of the connecting bar. Under the restoring force of the compression springs, the connecting bar can slide downward along the outer surface of the guide rod 2, synchronously driving the limiting block to move downward.

[0008] Preferably, a first inclined surface is provided on one side of the insertion block, and a second inclined surface is provided at the bottom of the limiting block. Through the above settings, when the first inclined surface of the insertion block contacts the second inclined surface of the limiting block, it is convenient to apply an upward thrust to the limiting block.

[0009] Preferably, two connection blocks are symmetrically and fixedly installed on one side of each of the two protective doors near the top. Two fixing plates are symmetrically and fixedly installed on one side of the box body near the top. A guide rod 1 is fixedly installed on the opposite sides of the two fixing plates. The inner walls of the connection blocks near the top are movably sleeved on the outer surface of the guide rod 1. Through the above settings, the connection blocks can slide to one side along the outer surface of the guide rod 1, thus facilitating the movement of the protective door to one side.

[0010] Preferably, a guide rail is fixedly installed on one side of the box body near the bottom. A chute is opened at the top of the guide rail. Two fixing blocks 1 are symmetrically and fixedly installed at the bottom of each of the two protective doors. A round rod is movably embedded on one side of each of the two fixing blocks 1. A roller is fixedly sleeved at one end of each of the two round rods. The outer surfaces of the rollers are movably embedded in the chute. Through the above settings, the rollers can roll inside the chute, thus facilitating the movement of the protective door to one side.

[0011] Preferably, transparent windows are provided on one side of each of the two protective doors. Handles are fixedly installed on one side of each of the two protective doors. Through the setting of the transparent windows, it is convenient to observe the inside of the box body. Through the setting of the handles, it is convenient to close and open the protective doors.

[0012] Preferably, a fixing ring is fixedly sleeved at the center of the outer surface of the first guiding rod. Two buffer springs are symmetrically and movably sleeved on the outer surface of the first guiding rod. Two movable rings are symmetrically and movably sleeved on the outer surface of the first guiding rod. One ends of the two buffer springs are respectively fixedly installed on one sides of the two movable rings, and the other ends of the two buffer springs are respectively fixedly installed on the opposite sides of the fixing ring. When the two protective doors gradually approach, the connecting block near the center of the first guiding rod will contact the movable ring and apply a squeezing force to the movable ring, causing the movable ring to slide towards the middle along the outer surface of the first guiding rod, and simultaneously compressing the buffer springs. Under the restoring force of the buffer springs, a reverse force can be applied to the connecting block through the movable ring.

[0013] Preferably, a control box is fixedly installed on the other side of the box body near the top. Through the setting of the control box, it plays a role in controlling this device.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0015] 1. In the present utility model, when the two protective doors gradually approach, the insertion block will be inserted into the inside of the slot, and apply an upward thrust to the limiting block, simultaneously driving the connecting strip to slide upward along the outer surface of the second guiding rod, compressing the compression spring. When the thrust received by the limiting block disappears, under the restoring force of the compression spring, the limiting block can be inserted into the limiting slot to limit the insertion block, thus avoiding the situation that the protective door opens due to vibration, further avoiding the ejection of iron filings or broken tools, causing harm to the operator, and improving the safety of the CNC vertical machining center.

[0016] 2. In the present utility model, when the two protective doors gradually approach, the connecting block near the center of the first guiding rod will contact the movable ring and apply a squeezing force to the movable ring, causing the movable ring to slide towards the middle along the outer surface of the first guiding rod, and simultaneously compressing the buffer springs. Under the restoring force of the buffer springs, a reverse force can be applied to the connecting block through the movable ring, thus slowing down the speed of the two protective doors moving towards the middle, reducing the impact force when the two protective doors collide, and further playing a certain buffering effect. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a protective mechanism of a CNC vertical machining center provided by the present utility model;

[0018] Figure 2 is a schematic side view structural diagram of a protective mechanism of a CNC vertical machining center provided by the present utility model;

[0019] Figure 3 is a protective mechanism of a CNC vertical machining center provided by the present utility modelFigure 2 Schematic diagram of the enlarged structure at A in the middle

[0020] Figure 4 It is a schematic diagram of a partially disassembled structure of a protection mechanism for a numerically controlled vertical machining center provided by the present utility model.

[0021] Legend description:

[0022] 1. Box body; 101. Control box; 2. Fixed plate; 201. First guide rod; 202. Fixed ring; 203. Buffer spring; 204. Movable ring; 205. Connecting block; 206. Protection door; 207. Transparent window; 208. Handle; 209. Guide rail; 210. Chute; 211. First fixing block; 212. Round rod; 213. Roller; 3. First square block; 301. Insert block; 302. Limit groove; 4. Second square block; 401. Slot; 402. Limit block; 403. Connecting bar; 404. Second guide rod; 405. Compression spring; 406. Second fixing block. Specific implementation mode

[0023] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0025] Embodiment 1, as Figures 1 to 4As shown in the figure, the utility model provides a protection mechanism for a numerical control vertical machining center, including: a box body 1 and two protection doors 206. The two protection doors 206 are symmetrically arranged on one side of the box body 1. It also includes: a first square block 3, fixedly installed at one of the corners near the bottom of one of the protection doors 206. One side of the first square block 3 is fixedly installed with an insertion block 301. A limit groove 302 is opened at the top of the insertion block 301. One of the corners near the bottom of the other protection door 206 is fixedly installed with a second square block 4. A slot 401 is opened on one side of the second square block 4. A limit block 402 is movably embedded at the center of the top of the second square block 4. A connecting strip 403 is fixedly installed at the top of the limit block 402. On the opposite sides of the second square block 4 near the top, two second fixing blocks 406 are fixedly installed respectively. On the tops of the two second fixing blocks 406, two second guide rods 404 are fixedly installed respectively. The outer surfaces of the two second guide rods 404 are symmetrically and movably embedded in the inner wall of the connecting strip 403. Compression springs 405 are movably sleeved on the outer surfaces of the two second guide rods 404 respectively. One ends of the two compression springs 405 are fixedly installed at one ends of the two second guide rods 404 respectively. The other ends of the two compression springs 405 are symmetrically fixedly installed at the bottom of the connecting strip 403. One side of the insertion block 301 is provided with a first inclined surface. The bottom of the limit block 402 is provided with a second inclined surface. On one side of the two protection doors 206 near the top, two connecting blocks 205 are symmetrically and fixedly installed respectively. On one side of the box body 1 near the top, two fixing plates 2 are symmetrically and fixedly installed respectively. On the opposite sides of the two fixing plates 2, a first guide rod 201 is fixedly installed. The inner walls of the plurality of connecting blocks 205 near the top are movably sleeved on the outer surface of the first guide rod 201. On one side of the box body 1 near the bottom, a guide rail 209 is fixedly installed. A chute 210 is opened at the top of the guide rail 209. On the bottoms of the two protection doors 206, two first fixing blocks 211 are symmetrically and fixedly installed respectively. On one side of each of the two first fixing blocks 211, a round rod 212 is movably embedded. At one end of each of the two round rods 212, a roller 213 is fixedly sleeved. The outer surfaces of the plurality of rollers 213 are movably embedded in the inside of the chute 210. On one side of each of the two protection doors 206, a transparent window 207 is provided. On one side of each of the two protection doors 206, a handle 208 is fixedly installed. On the other side of the box body 1 near the top, a control box 101 is fixedly installed.

[0026] In this embodiment, when the operator closes the protective door 206 by applying force through the handle 208, the roller 213 will roll inside the chute 210, and the connecting block 205 will slide along the outer surface of the first guide rod 201 to one side. When the two protective doors 206 gradually approach, the insertion block 301 will be inserted into the slot 401, and the first inclined surface of the insertion block 301 will contact the second inclined surface of the limiting block 402, and apply an upward thrust to the limiting block 402, causing the limiting block 402 to slide upward, synchronously driving the connecting bar 403 to slide upward along the outer surface of the second guide rod 404, compressing the compression spring 405. When the limiting groove 302 moves to directly below the limiting block 402, the thrust received by the limiting block 402 disappears. Under the restoring force of the compression spring 405, the connecting bar 403 can slide downward along the outer surface of the second guide rod 404, synchronously driving the limiting block 402 to move downward and inserting into the limiting groove 302 to limit the insertion block 301. At this time, the two protective doors 206 are in a combined closed state. In this way, when the two protective doors 206 are closed with too much force, it can be avoided that the two protective doors 206 separate from each other under the action of the collision force and fail to close tightly, thereby avoiding the situation that the protective door 206 opens due to vibration, and further avoiding the ejection of iron chips or broken tools, causing harm to the operator, and improving the safety of the CNC vertical machining center.

[0027] Embodiment 2, as Figures 1 to 4 shown, a fixed ring 202 is fixedly sleeved at the center of the outer surface of the first guide rod 201. Two buffer springs 203 are symmetrically and movably sleeved on the outer surface of the first guide rod 201. Two movable rings 204 are symmetrically and movably sleeved on the outer surface of the first guide rod 201. One ends of the two buffer springs 203 are respectively fixedly installed on one side of the two movable rings 204, and the other ends of the two buffer springs 203 are respectively fixedly installed on the opposite sides of the fixed ring 202.

[0028] In this embodiment, when the two protective doors 206 gradually approach, the connecting block 205 near the center of the first guide rod 201 will contact the movable ring 204 and apply an extrusion force to the movable ring 204, causing the movable ring 204 to slide toward the middle along the outer surface of the first guide rod 201, synchronously compressing the buffer spring 203. Under the restoring force of the buffer spring 203, a reverse force can be applied to the connecting block 205 through the movable ring 204. In this way, the speed of the two protective doors 206 moving toward the middle can be slowed down, thereby reducing the collision force between the two protective doors 206, and further achieving a certain buffering effect.

[0029] Working principle: When in use, when the operator closes the protective door 206 by applying force through the handle 208, the roller 213 will roll inside the chute 210, and the connecting block 205 will slide along the outer surface of the first guide rod 201 to one side. When the two protective doors 206 gradually approach, the insertion block 301 will be inserted into the slot 401, and the first inclined surface of the insertion block 301 will contact the second inclined surface of the limit block 402, and apply an upward thrust to the limit block 402, causing the limit block 402 to slide upward, synchronously driving the connecting bar 403 to slide upward along the outer surface of the second guide rod 404, compressing the compression spring 405. When the limit groove 302 moves to directly below the limit block 402, the thrust received by the limit block 402 disappears. Under the restoring force of the compression spring 405, the connecting bar 403 can slide downward along the outer surface of the second guide rod 404, synchronously driving the limit block 402 to move downward and insert into the limit groove 302 to limit the insertion block 301. At this time, the two protective doors 206 are in a combined closed state. In this way, when the two protective doors 206 are closed with excessive force, it can be avoided that the two protective doors 206 are separated from each other under the action of the collision force and are not tightly closed, thereby avoiding the situation that the protective door 206 opens due to vibration, and further avoiding the iron filings or broken tools from being thrown out and causing harm to the operator, improving the safety of the CNC vertical machining center. Synchronously, when the two protective doors 206 gradually approach, the connecting block 205 near the center of the first guide rod 201 will contact the movable ring 204 and apply an extrusion force to the movable ring 204, causing the movable ring 204 to slide toward the middle along the outer surface of the first guide rod 201, synchronously compressing the buffer spring 203. Under the restoring force of the buffer spring 203, a reverse force can be applied to the connecting block 205 through the movable ring 204. In this way, the speed of the two protective doors 206 moving toward the middle can be slowed down, thereby reducing the collision force between the two protective doors 206, and further playing a certain buffering effect. And since the limit block 402 is inserted into the limit groove 302, the insertion block 301 can be limited, making it impossible for the two protective doors 206 to move away from each other, and avoiding the restoring force of the buffer spring 203 from separating the two protective doors 206. When it is necessary to separate the two protective doors 206, pull the connecting bar 403 upward to disengage the limit block 402 from the limit groove 302 to release the limit on the insertion block 301.

[0030] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A protective mechanism for a numerically controlled vertical machining center, comprising: A box body (1) and two protective doors (206), the two protective doors (206) are symmetrically arranged on one side of the box body (1), and it is characterized in that it further includes: A first square block (3) is fixedly installed at one of the corners near the bottom of one of the protective doors (206). An insertion block (301) is fixedly installed on one side of the first square block (3). A limiting groove (302) is opened at the top of the insertion block (301). A second square block (4) is fixedly installed at one of the corners near the bottom of the other protective door (206). A slot (401) is opened on one side of the second square block (4). A limiting block (402) is movably embedded at the center of the top of the second square block (4). A connecting bar (403) is fixedly installed at the top of the limiting block (402). Fixed blocks two (406) are fixedly installed on the opposite sides of the second square block (4) near the top. Guide rods two (404) are fixedly installed at the tops of the two fixed blocks two (406). The outer surfaces of the two guide rods two (404) are symmetrically and movably embedded in the inner wall of the connecting bar (403).

2. The protective mechanism of a numerically controlled vertical machining center according to claim 1, characterized in that: Compression springs (405) are movably sleeved on the outer surfaces of the two guide rods two (404). One ends of the two compression springs (405) are respectively fixedly installed at one ends of the two guide rods two (404). The other ends of the two compression springs (405) are symmetrically fixedly installed at the bottom of the connecting bar (403).

3. A protective mechanism for a numerically controlled vertical machining center according to claim 1, characterized in that: One side of the insertion block (301) is provided with a first inclined surface, and the bottom of the limiting block (402) is provided with a second inclined surface.

4. A protective mechanism for a numerically controlled vertical machining center according to claim 1, characterized in that: Two connecting blocks (205) are symmetrically and fixedly installed on one side of the two protective doors (206) near the top. Two fixing plates (2) are symmetrically and fixedly installed on one side of the box body (1) near the top. A guide rod one (201) is fixedly installed on the opposite sides of the two fixing plates (2). The inner walls of the plurality of connecting blocks (205) near the top are movably sleeved on the outer surface of the guide rod one (201).

5. The protection mechanism of a numerically controlled vertical machining center according to claim 4, characterized in that: A guide rail (209) is fixedly installed on one side of the box body (1) near the bottom. A chute (210) is opened at the top of the guide rail (209). Two fixing blocks one (211) are symmetrically and fixedly installed at the bottoms of the two protective doors (206). Round rods (212) are movably embedded on one side of the two fixing blocks one (211). One ends of the two round rods (212) are fixedly sleeved with rollers (213). The outer surfaces of the plurality of rollers (213) are movably embedded in the inside of the chute (210).

6. The protective mechanism of a numerically controlled vertical machining center according to claim 5, characterized in that: Transparent windows (207) are arranged on one side of the two protective doors (206). Handles (208) are fixedly installed on one side of the two protective doors (206).

7. A protection mechanism for a numerically controlled vertical machining center according to claim 4, characterized in that: A fixing ring (202) is fixedly sleeved at the center of the outer surface of the first guiding rod (201). Two buffer springs (203) are symmetrically and movably sleeved on the outer surface of the first guiding rod (201). Two movable rings (204) are symmetrically and movably sleeved on the outer surface of the first guiding rod (201). One ends of the two buffer springs (203) are respectively fixedly installed on one sides of the two movable rings (204), and the other ends of the two buffer springs (203) are respectively fixedly installed on the opposite sides of the fixing ring (202).

8. The protective mechanism of a numerically controlled vertical machining center according to claim 5, characterized in that: A control box (101) is fixedly installed on the other side of the box body (1) near the top.

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