Limiting mechanism of cam automatic lathe

Abstract

This utility model belongs to the technical field of cam automatic lathes, specifically a limiting mechanism for a cam automatic lathe. It includes an automatic lathe, a drive motor, a chuck, a rotary disk, and a rotary swing arm. The rotary disk is rotatably mounted on the automatic lathe. Guide holes are equidistantly distributed on the surface of the rotary disk. A first push rod, a second push rod, a third push rod, and a fourth push rod are sequentially inserted into the guide holes. A drill chuck is fixedly connected to one end of each of the first, second, third, and fourth push rods. A connecting screw is connected to the other end of each of the first, second, third, and fourth push rods. A positioning screw is threaded into the connecting seat of this invention. After the push rod moves, the positioning screw abuts against the surface of the rotary disk, limiting the movement of the push rod. This allows for positioning of the drilling and threading depth of the drilling bit and internal thread drill bit during use, improving the machining accuracy of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of cam automatic lathe technology, specifically a limiting mechanism for a cam automatic lathe. Background Technology

[0002] An automatic lathe is a high-performance, high-precision, low-noise sliding-tool automatic lathe that uses cams to control the machining program. There are also CNC automatic lathes, pneumatic automatic lathes, and sliding headstock automatic lathes. Their core function is to automatically process the same product for extended periods after certain settings and adjustments. They are suitable for machining precision parts made of copper, aluminum, iron, and plastics, and are applicable to the batch processing of small parts, especially complex parts, in industries such as instruments, watches, automobiles, motorcycles, bicycles, eyeglasses, stationery, hardware and sanitary ware, electronic components, connectors, computers, mobile phones, electromechanical products, and military applications.

[0003] Existing cam-operated automatic lathes rely on a rotating rocker arm to drive a push rod, which then moves to drill and thread holes on the workpiece surface using drill bits and internal thread drill bits. However, the drilling and threading depth is controlled by the rotation angle of the rocker arm. This rotation angle makes it difficult to precisely control the drilling and threading depth, which affects the drilling and threading accuracy of the workpiece. To address these issues, this application proposes a limiting mechanism for a cam-operated automatic lathe. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a limiting mechanism for an automatic cam lathe. Each connecting seat is threaded with a positioning screw. After the push rod moves, the positioning screw abuts against the surface of the rotary table, which can limit the movement of the push rod. This allows for positioning of the drilling and threading depth of the drilling bit and internal thread drill bit during use, improving the machining accuracy of the workpiece and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a limiting mechanism for an automatic cam lathe, including an automatic lathe, a drive motor, a chuck, a rotary disk and a rotary swing arm. The rotary disk is rotatably mounted on the automatic lathe. A guide hole is opened through the surface of the rotary disk. The guide holes are distributed at equal intervals. A first push rod, a second push rod, a third push rod and a fourth push rod are sequentially inserted into the guide holes.

[0008] One end of the first, second, third, and fourth push rods is fixedly connected to a drill rod chuck, and the other end of the first, second, third, and fourth push rods is connected to a connecting screw. The ends of the first and second push rods and the third and fourth push rods are respectively connected to a connecting seat through the connecting screw thread.

[0009] Each of the connecting seats has a threaded hole through the middle, and a positioning screw is threaded into the inner cavity of the threaded hole.

[0010] Preferably, a chuck is rotatably mounted on one end of the upper surface of the automatic lathe, and the drive motor is used to drive the chuck.

[0011] Preferably, a drilling bit and an internal thread drill bit are movably inserted into the inner cavity of the drill rod chuck, and the drilling bit and the internal thread drill bit are arranged at intervals on the drill rod chuck.

[0012] Preferably, the rotating swing arm is mounted on one side of the connecting screw, and a push ball is fixedly connected to the end of the rotating swing arm.

[0013] Preferably, each of the connecting screw ends is fixedly connected to a push plate, and the rotating swing arm pushes the top ball to push the push plate when it swings.

[0014] Preferably, when the connecting seat moves, the end of the positioning screw abuts against the surface of the rotating disk.

[0015] Preferably, a return spring is fitted on the surface of the first, second, third, and fourth push rods at the end away from the connecting screw, and the two ends of the return spring abut against the rotary disk and the drill pipe chuck, respectively.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] 1. In this utility model, the ends of the first, second, third, and fourth push rods are respectively connected to the connecting seats via connecting screws. The connecting seats allow the first, second, third, and fourth push rods to form an integral structure. When the rotating arm rotates, it pushes the push ball to move the first push rod through the push plate, allowing drilling to be performed on the workpiece surface using a drilling bit. After the rotating plate drives the push rod to rotate, the rotating arm rotates again, pushing the push ball to move the third push rod, allowing for rapid tapping within the hole using an internal thread drill. When the first or third push rod moves, the second and fourth push rods guide the first and third push rods respectively. After changing the mounting positions of the drilling bit and internal thread drill, the first and third push rods can again guide the second and fourth push rods, reducing the need for guide rods during drilling and threading operations, optimizing the lathe structure, and reducing the lathe failure rate.

[0018] 2. In this utility model, the connecting seat is threaded with a positioning screw. After the push rod moves, the positioning screw abuts against the surface of the rotating disk, which can limit the movement of the push rod. Thus, the drilling and threading depth of the drilling bit and internal thread drill bit can be positioned during use, which can improve the processing accuracy of the workpiece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the limiting mechanism of a cam automatic lathe according to the present invention;

[0020] Figure 2 This is a schematic diagram of the push rod drive structure of the limiting mechanism of a cam automatic lathe according to the present invention;

[0021] Figure 3 This is a schematic diagram of the push rod structure of the limiting mechanism of an automatic cam lathe according to the present invention;

[0022] Figure 4 This is a schematic diagram of the rotating swing arm structure of the limiting mechanism of a cam automatic lathe according to the present invention.

[0023] Figure label:

[0024] 1. Automatic lathe; 2. Drive motor; 3. Chuck; 4. Rotary disc; 5. First ejector rod; 6. Second ejector rod; 7. Third ejector rod; 8. Fourth ejector rod; 9. Drill chuck; 10. Drill bit; 11. Internal thread drill bit; 12. Connecting screw; 13. Connecting seat; 14. Positioning screw; 15. Push plate; 16. Rotary swing arm; 17. Push ball; 18. Return spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figure 1-4 As shown, the present invention proposes a limiting mechanism for an automatic cam lathe, including an automatic lathe 1, a drive motor 2, a chuck 3, a rotary disk 4, and a rotary swing arm 16. The rotary disk 4 is rotatably mounted on the automatic lathe 1. A guide hole is provided through the surface of the rotary disk 4. The guide holes are distributed at equal intervals. A first push rod 5, a second push rod 6, a third push rod 7, and a fourth push rod 8 are sequentially inserted into the guide holes.

[0027] One end of the first push rod 5, the second push rod 6, the third push rod 7, and the fourth push rod 8 is fixedly connected to a drill rod chuck 9, and the other end of the first push rod 5, the second push rod 6, the third push rod 7, and the fourth push rod 8 is connected to a connecting screw 12. The ends of the first push rod 5 and the second push rod 6, and the ends of the third push rod 7 and the fourth push rod 8 are respectively threadedly connected to a connecting seat 13 through the connecting screw 12.

[0028] Each of the connecting seats 13 has a threaded hole through the middle, and a positioning screw 14 is threadedly connected to the inner cavity of the threaded hole. When the connecting seat 13 moves, the end of the positioning screw 14 abuts against the surface of the rotating disk 4.

[0029] It should be noted that the ends of the first ejector rod 5, the second ejector rod 6, the third ejector rod 7, and the fourth ejector rod 8 are respectively connected to the connecting seat 13 via the connecting screw 12. The connecting seat 13 allows the first ejector rod 5, the second ejector rod 6, the third ejector rod 7, and the fourth ejector rod 8 to form an integral structure. When the rotating arm 16 rotates, it pushes the ejector ball 17 to move the first ejector rod 5 via the push plate 15, allowing drilling on the workpiece surface using the drill bit 10. After the rotating plate 4 drives the ejector rod to rotate, the rotating arm 16 rotates again, pushing the ejector ball 17 to move the third ejector rod 7. The internal thread drill bit 11 can be used for rapid tapping within the opened hole. When the first ejector rod 5 or the third ejector rod 7 moves, the second ejector rod 6 and the fourth ejector rod 8... The push rod 8 can guide the first push rod 5 and the third push rod 7 respectively. After changing the installation position of the drilling bit 10 and the internal thread drill bit 11, the first push rod 5 and the third push rod 7 can guide the second push rod 6 and the fourth push rod 8. This can reduce the setting of guide rods when drilling and threading the drilling bit 10 and the internal thread drill bit 11, optimize the lathe structure, and reduce the lathe failure rate. At the same time, each connecting seat 13 is threaded with a positioning screw 14. After the push rod moves, the positioning screw 14 abuts against the surface of the rotary disk 4, which can limit the movement of the push rod. Thus, the drilling and threading depth of the drilling bit 10 and the internal thread drill bit 11 can be positioned during use, which can improve the machining accuracy of the workpiece.

[0030] In this embodiment, as Figure 1 As shown, a chuck 3 is rotatably mounted on one end of the upper surface of the automatic lathe 1, and the drive motor 2 is used to drive the chuck 3.

[0031] It should be noted that the clamping plate 3 is used for clamping and fixing the workpiece.

[0032] In this embodiment, as Figure 3 As shown, a drilling bit 10 and an internal thread drill bit 11 are movably inserted into the inner cavity of the drill chuck 9, and the drilling bit 10 and the internal thread drill bit 11 are arranged at intervals on the drill chuck 9.

[0033] It should be noted that the drilling bit 10 and the internal threading bit 11 can perform drilling and threading operations on the workpiece.

[0034] In this embodiment, as Figure 4 As shown, the rotating swing arm 16 is installed on one side of the connecting screw 12. A push ball 17 is fixedly connected to the end of the rotating swing arm 16. A push plate 15 is fixedly connected to the end of the connecting screw 12. When the rotating swing arm 16 swings, the push ball 17 pushes the push plate 15.

[0035] It should be noted that pushing the top ball 17 pushes the push plate 15, which can reduce the friction between the top ball 17 and the push plate 15.

[0036] In this embodiment, as Figure 3 As shown, the first push rod 5, the second push rod 6, the third push rod 7 and the fourth push rod 8 are all fitted with a return spring 18 on the surface of the end away from the connecting screw 12. The two ends of the return spring 18 abut against the rotating disk 4 and the drill chuck 9, respectively.

[0037] It should be noted that after being stretched, the return spring 18 applies a retraction force to the first push rod 5, the second push rod 6, the third push rod 7, and the fourth push rod 8, so that the drilling drill bit 10 and the internal thread drill bit 11 can quickly disengage from the workpiece after drilling or threading.

[0038] The working principle and usage process of this utility model are as follows: The workpiece is clamped by the chuck 3, and the drilling bit 10 and the internal thread drill bit 11 are respectively clamped by the drill rod chuck 9. The drilling bit 10 and the internal thread drill bit 11 are arranged in a spaced manner on the drill rod chuck 9. The ends of the first push rod 5, the second push rod 6, the third push rod 7, and the fourth push rod 8 are respectively connected to the connecting seat 13 through the connecting screw 12. The connecting seat 13 can make the first push rod 5, the second push rod 6, the third push rod 7, and the fourth push rod 8 form an integral structure. When the rotating arm 16 rotates, it pushes the push ball 17 to push the first push rod 5 to move through the push plate 15, so that the drilling bit 10 can drill holes on the surface of the workpiece. After the rotating plate 4 drives the push rod to rotate, the rotating arm 16 rotates again, and it can push the push ball 17 to push the third push rod 7 to move, so that the internal thread drill bit can be used to drill holes on the surface of the workpiece. The head 11 can quickly tap within the hole. When the first ejector rod 5 or the third ejector rod 7 moves, the second ejector rod 6 and the fourth ejector rod 8 can guide the first ejector rod 5 and the third ejector rod 7 respectively. After changing the installation position of the drilling bit 10 and the internal thread drill 11, the first ejector rod 5 and the third ejector rod 7 can guide the second ejector rod 6 and the fourth ejector rod 8. This reduces the need for guide rods during drilling and threading operations of the drilling bit 10 and the internal thread drill 11, optimizes the lathe structure, and reduces the lathe failure rate. At the same time, each connecting seat 13 is threaded with a positioning screw 14. After the ejector rod moves, the positioning screw 14 abuts against the surface of the rotary disk 4, which can limit the movement of the ejector rod. Thus, the drilling and threading depth of the drilling bit 10 and the internal thread drill 11 can be positioned during use, which can improve the machining accuracy of the workpiece.

[0039] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A limiting mechanism of a cam automatic lathe, comprising an automatic lathe (1), a driving motor (2), a chuck (3), a rotating disc (4) and a rotating swing arm (16), characterized in that, The rotary disk (4) is rotatably mounted on the automatic lathe (1). A guide hole is provided through the surface of the rotary disk (4). The guide holes are distributed at equal intervals. A first push rod (5), a second push rod (6), a third push rod (7), and a fourth push rod (8) are sequentially inserted into the guide holes. One end of the first push rod (5), the second push rod (6), the third push rod (7), and the fourth push rod (8) is fixedly connected to a drill rod chuck (9), and the other end of the first push rod (5), the second push rod (6), the third push rod (7), and the fourth push rod (8) is connected to a connecting screw (12). The ends of the first push rod (5) and the second push rod (6) and the third push rod (7) and the fourth push rod (8) are respectively threadedly connected to a connecting seat (13) through the connecting screw (12). Each of the connecting seats (13) has a threaded hole through the middle, and a positioning screw (14) is threadedly connected to the inner cavity of the threaded hole.

2. The stop mechanism of a cam automatic lathe according to claim 1, wherein The automatic lathe (1) has a chuck (3) rotatably mounted on one end of its upper surface, and the drive motor (2) is used to drive the chuck (3).

3. The stop mechanism of a cam automatic lathe according to claim 2, wherein The drill chuck (9) has a drilling bit (10) and an internal thread drill bit (11) movably inserted into its inner cavity. The drilling bit (10) and the internal thread drill bit (11) are arranged at intervals on the drill chuck (9).

4. The stop mechanism of a cam automatic lathe according to claim 3, wherein The rotating arm (16) is installed on one side of the connecting screw (12), and a push ball (17) is fixedly connected to the end of the rotating arm (16).

5. The stop mechanism of a cam automatic lathe according to claim 4, wherein Each end of the connecting screw (12) is fixedly connected to a push plate (15). When the rotating arm (16) swings, it pushes the top ball (17) to push the push plate (15).

6. A stop mechanism for a cam automatic lathe according to claim 5, wherein When the connecting seat (13) moves, the end of the positioning screw (14) abuts against the surface of the rotating disk (4).

7. The stop mechanism of a cam automatic lathe according to claim 6, wherein The first push rod (5), the second push rod (6), the third push rod (7) and the fourth push rod (8) are all fitted with a return spring (18) on the surface of the end away from the connecting screw (12). The two ends of the return spring (18) abut against the rotating disk (4) and the drill chuck (9) respectively.

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