Lathe anti-collision device

Abstract

The application discloses a lathe anti-collision device in the technical field of anti-collision devices, which comprises a lathe body, a saddle, a chuck and a tool rest, the lathe body is provided with the chuck on one side, the saddle is fixedly provided with the tool rest on the top, a control lever is arranged on the lathe body near the chuck side, a travel switch is arranged on the lathe body on the side of the control lever, a pawl is arranged above the control lever, and a linkage sliding block is fixed to the top of the pawl. The lathe body is stopped by the mode that the saddle is moved to drive the top rod to impact the hinged part of the two limiting rods, the pawl is pushed to close the travel switch, the cutting tool can be stopped, the cutting tool is prevented from moving to the chuck, the problem of poor safety of the existing lathe anti-collision device is solved, the lathe operation can be paused in time when the collision is about to occur, the direct collision is avoided, the preventive protection mode is adopted, and the safety of the lathe operation is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of anti-collision device technology, specifically an anti-collision device for lathes. Background Technology

[0002] A lathe is a machine tool that primarily uses a cutting tool to machine rotating workpieces. It is the most important type of metal cutting machine tool, and is the most numerous and prevalent type in general machine manufacturing plants. Lathes also utilize drills, reamers, taps, dies, and knurling tools for various machining operations. The function of a lathe is to cut rotating surfaces of various sizes and shapes, as well as helical surfaces.

[0003] When a lathe is running, the saddle moves the tool post toward the chuck, thereby driving the cutting tool to cut the workpiece. During cutting, improper operation or command failure can easily cause the saddle to move excessively, resulting in the cutting tool colliding with the workpiece or chuck, causing damage to the cutting tool, chuck, or workpiece. Most existing lathe anti-collision structures provide protection through buffering, which cannot stop or pause the impact in time, affecting the safety of lathe operation. Based on this, the present invention designs a lathe anti-collision device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a lathe anti-collision device to solve the problem of poor safety of existing lathe anti-collision devices mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lathe anti-collision device, comprising a lathe body, a saddle, a chuck, and a tool post, wherein a chuck is provided on one side of the lathe body, and a tool post is fixedly provided on the top of the saddle.

[0006] A control lever is provided on the lathe body near the chuck side. A limit switch is provided on the lathe body next to the control lever. A pawl is provided above the control lever, and a linkage slider is fixed on the top of the pawl. The top of the linkage slider is rotatably connected to a limit rod one via a hinge shaft. The top of the limit rod one is rotatably connected to a limit rod two via a hinge shaft. The top of the limit rod two is rotatably connected to the lathe body via a hinge shaft. A push rod is fixed on the saddle on the opposite side of the limit rod one and the limit rod two.

[0007] In a further embodiment, the pawl is configured as a semi-circular shape that cooperates with the control lever. The pawl is located directly above the control lever, and the center of the push rod is on the same horizontal line as the center of the hinge axis connecting the first and second limit rods.

[0008] In a further embodiment, a toggle block is fixed to the upper part of the linkage slider near the limit switch, and the toggle block is set as a horizontally placed triangle, and the end of the limit switch near the linkage slider is set as a ring.

[0009] In a further embodiment, a support sleeve is slidably connected to the back of the linkage slider, and the support sleeve is fixed to the front side of the lathe body.

[0010] In a further embodiment, the support sleeve has a groove inside that mates with the inner slider, and a fixed sliding rod is fixed inside the groove. Both the inner slider and the spring are slidably sleeved on the outside of the fixed sliding rod.

[0011] In a further embodiment, an inner slider is fixed to the rear side of the linkage slider, and the inner slider is slidably sleeved inside the support sleeve. A spring is fixed between the bottom surface of the inner slider and the bottom surface of the support sleeve.

[0012] In a further embodiment, the distance between the bottom surface of the support sleeve and the hinge shaft at the top of the second limiting rod is equal to the sum of the heights of the first limiting rod and the second limiting rod, and the distance between the inner groove of the support sleeve and the hinge shaft at the top of the second limiting rod is less than the sum of the heights of the first limiting rod and the second limiting rod.

[0013] In a further embodiment, the first and second limiting rods are configured with their tips pointing towards the top rod in an inclined position.

[0014] In a further embodiment, the limit switch and the linkage slider slide against each other on opposite sides, and the length of the push rod is equal to the safe distance from the chuck to the tool holder.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) This invention uses the movement of the saddle to drive the push rod to hit the hinge of the two limit rods, thereby pushing the lever to close the limit switch and stopping the saddle. This prevents the cutting tool from continuing to move towards the chuck, solving the problem of poor safety of existing lathe anti-collision devices. It can stop the lathe operation in time when an impact is about to occur, thereby avoiding the direct occurrence of the impact. This preventive protection method greatly improves the safety of lathe operation.

[0017] (2) By pushing the linkage slider down through the two limit rods, the control lever is pushed down through the toggle block to turn the control lever down and shut down the machine tool. This can directly prevent the occurrence of impact to a greater extent. The machine tool can only continue to run after the operator confirms and then manually opens it. This further improves the safety of the machine tool during operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the box body of the present invention when it is opened;

[0021] Figure 3 This is a bottom-view cross-sectional view of the structure of the present invention;

[0022] Figure 4 The structure of this invention Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0023] Figure 5 For the present invention Figure 3 Rear view in the structure;

[0024] Figure 6 For the present invention Figure 3 Front view of the structure.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Lathe body, 2-Saddle, 3-Chuck, 4-Tool post, 5-Operating lever, 6-Limit switch, 7-Pawl, 8-Linkage slider, 9-Pulley, 10-Support sleeve, 11-Inner slider, 12-Fixed slide rod, 13-Spring, 14-Limit rod one, 15-Limit rod two, 16-Push rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-6This invention provides a technical solution: a lathe anti-collision device, including a lathe body 1, a saddle 2, a chuck 3, and a tool post 4. The chuck 3 is located on one side of the lathe body 1, and the tool post 4 is fixedly mounted on the top of the saddle 2. A control lever 5 is located on the lathe body 1 near the chuck 3, and a limit switch 6 is located on the side of the control lever 5. A pawl 7 is located above the control lever 5, and the pawl 7 is a semi-circular shape that cooperates with the control lever 5. The pawl 7 is located directly above the control lever 5. The center of the push rod 16 is on the same horizontal line as the center of the hinge shaft connecting the first limit rod 14 and the second limit rod 15. A linkage slider 8 is fixed to the top of the pawl 7. The top of the linkage slider 8 is rotatably connected to the first limit rod 14 via a hinge shaft, and the top of the first limit rod 14 is rotatably connected to the second limit rod 15 via a hinge shaft. The bottom surface of the support sleeve 10 extends to the second limit rod. The distance between the top hinge shafts of 15 is equal to the sum of the heights of limit rod 14 and limit rod 2 15. The distance between the inner groove of the support sleeve 10 and the top hinge shaft of limit rod 2 15 is less than the sum of the heights of limit rod 14 and limit rod 2 15. The top of limit rod 2 15 is rotatably connected to the lathe body 1 through the hinge shaft. A top rod 16 is fixed on the saddle 2 on the opposite side of limit rod 14 and limit rod 2 15. An inner slider 11 is fixed on the rear side of the linkage slider 8, and the inner slider 11 is slidably sleeved inside the support sleeve 10. A spring 13 is fixed between the bottom surface of the inner slider 11 and the inner bottom surface of the support sleeve 10. Limit rod 14 and limit rod 2 15 are set in an inclined shape with their tips facing the top rod 16. The limit switch 6 and the linkage slider 8 slide against each other on opposite sides. The length of the top rod 16 is equal to the safe distance from the chuck 3 to the tool post 4.

[0029] When the saddle 2 moves to the left and the tool post 4 approaches the chuck 3, the push rod 16 on the left side of the saddle 2 reaches the hinge point of limit rod 14 and limit rod 2 15. Limit rod 14 and limit rod 2 15 rotate and push the linkage slider 8 downward, which in turn drives the inner slider 11 to move downward in the slide groove. This drives the pawl 7 at the lower end of the linkage slider 8 to push the control lever 5 downward to the middle position. At the same time, the lever 9 on the linkage slider 8 triggers the limit switch 6 downward, causing the limit switch 6 to close, cutting off the power to the machine tool. At the same time, the control lever 5 also controls the machine tool to be in a stopped state, achieving the dual protection of electrical disconnection and control lever 5 reset to stop the machine tool. After confirming safety, the control lever 5 and the limit switch 6 are opened, the saddle 2 moves to the right, the linkage slider 8 is reset upward by the spring 13, the pawl 7 leaves the control lever 5, and the limit switch 6 is reset. The machine tool can then be restarted.

[0030] Please see Figure 1-4A lever 9 is fixed on the upper part of the linkage slider 8 near the limit switch 6, and the lever 9 is set as a horizontally placed triangle. The end of the limit switch 6 near the linkage slider 8 is set as a ring. A support sleeve 10 is slidably connected to the back of the linkage slider 8, and the support sleeve 10 is fixed on the front side of the lathe body 1. A groove is opened inside the support sleeve 10 to cooperate with the inner slider 11, and a fixed slide rod 12 is fixed inside the groove. The inner slider 11 and the spring 13 are both slidably sleeved on the outside of the fixed slide rod 12.

[0031] When the inner slider 11 moves downward under the drive of the linkage slider 8, it slides on the fixed slide rod 12 and compresses the spring 13, so that the spring 13 also slides on the outside of the fixed slide rod 12. When the saddle 2 moves to the right, the thrust of the first limit rod 14 and the second limit rod 15 is released, and the inner slider 11 is pushed upward under the push of the spring 13, thereby driving the linkage slider 8 to move upward and reset.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lathe anti-collision device, comprising a lathe body (1), a saddle (2), a chuck (3), and a tool post (4), wherein a chuck (3) is provided on one side of the lathe body (1), and a tool post (4) is fixedly provided on the top of the saddle (2), characterized in that: A control lever (5) is provided on the lathe body (1) near the chuck (3). A limit switch (6) is provided on the lathe body (1) on the side of the control lever (5). A pawl (7) is provided above the control lever (5), and a linkage slider (8) is fixed on the top of the pawl (7). The top of the linkage slider (8) is rotatably connected to a limit rod one (14) through a hinge shaft. The top of the limit rod one (14) is rotatably connected to a limit rod two (15) through a hinge shaft. The top of the limit rod two (15) is rotatably connected to the lathe body (1) through a hinge shaft. A top rod (16) is fixed on the saddle (2) on the opposite side of the limit rod one (14) and the limit rod two (15). The pawl (7) is set as a semi-circular shape that cooperates with the control lever (5). The pawl (7) is located directly above the control lever (5). The center of the top rod (16) is on the same horizontal line as the center of the hinge axis connecting the first limit rod (14) and the second limit rod (15). The upper part of the linkage slider (8) near the limit switch (6) is fixed with a toggle block (9), and the toggle block (9) is set as a horizontally placed triangle. The end of the limit switch (6) near the linkage slider (8) is set as a ring.

2. The lathe anti-collision device according to claim 1, characterized in that: The linkage slider (8) is slidably connected to a support sleeve (10) on its back, and the support sleeve (10) is fixed to the front side of the lathe body (1).

3. The lathe anti-collision device according to claim 2, characterized in that: The support sleeve (10) has a groove inside that cooperates with the inner slider (11), and a fixed slider (12) is fixed inside the groove. The inner slider (11) and the spring (13) are both slidably sleeved on the outside of the fixed slider (12).

4. The lathe anti-collision device according to claim 3, characterized in that: An inner slider (11) is fixed to the rear side of the linkage slider (8), and the inner slider (11) is slidably sleeved inside the support sleeve (10). A spring (13) is fixed between the bottom surface of the inner slider (11) and the bottom surface inside the support sleeve (10).

5. The lathe anti-collision device according to claim 3, characterized in that: The distance between the bottom surface of the support sleeve (10) and the top hinge shaft of the second limiting rod (15) is equal to the sum of the heights of the first limiting rod (14) and the second limiting rod (15). The distance between the inner groove of the support sleeve (10) and the top hinge shaft of the second limiting rod (15) is less than the sum of the heights of the first limiting rod (14) and the second limiting rod (15).

6. The lathe anti-collision device according to claim 1, characterized in that: The limiting rod one (14) and the limiting rod two (15) are set in an inclined shape with their tips facing the top rod (16).

7. The lathe anti-collision device according to claim 1, characterized in that: The limit switch (6) and the linkage slider (8) slide against each other, and the length of the top rod (16) is equal to the safe distance from the chuck (3) to the tool holder (4).

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