Vertical lathe wire guiding auxiliary device

Abstract

The utility model discloses a vertical lathe wire leading auxiliary device which comprises a conical connecting piece, a tip, a connecting sleeve, an elastic piece, an adapter and a screw tap, the conical connecting piece is used for being connected with a vertical lathe main shaft, the connecting sleeve is movably arranged outside the tip in a sleeved mode and detachably connected with the conical connecting piece so as to be used for conducting radial positioning and axial limiting on the tip, and the elastic piece is connected with the adapter. The elastic piece is arranged between the conical connecting piece and the tip and used for applying elastic force to the tip, the elastic force moves in the direction away from the conical connecting piece, and the adapter axially abuts against the tip and is matched with the screw tap in an inserted mode. The screw tap positioning device is used for conducting circumferential positioning, radial positioning and axial limiting on the screw tap and transmitting elastic force in the same direction as the feeding direction to the screw tap. Compared with the prior art, the vertical lathe tapping device has the advantages that the operation of wire guiding during tapping feeding is greatly simplified, the matching difficulty is reduced, the tapping quality and efficiency are improved, and the vertical lathe tapping device is suitable for vertical lathe tapping, high in practicability and suitable for wide popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of thread processing technology, and in particular, to a vertical lathe thread-drawing auxiliary device. Background Technology

[0002] Tunnel boring machines (TBMs) are multi-functional underground tunnel excavation equipment that play an important role in underground engineering construction in fields such as transportation, water conservancy, and mining. However, TBMs contain key components such as gearboxes, flanges, and cutterheads. These key components are heavy and expensive, and are usually reliably assembled using threads. However, when using vertical lathes for automatic tapping to process threads, the lack of proper matching between the speed and feed of the attachment head results in low perpendicularity of the processed threads, leading to quality problems such as unqualified threads. This in turn renders the key components unusable, wasting a lot of manpower and resources.

[0003] To ensure thread perpendicularity, after drilling the pilot hole on the vertical lathe, a threading tap needs to be guided smoothly and accurately into the pilot hole to avoid deviation or error and ensure machining accuracy. During machining, the threading tap can increase the support force and help the tap maintain a stable cutting state, thus improving machining efficiency. Currently, threading auxiliary devices usually have two types: fixed centers and movable centers. When using a fixed center for threading, it is necessary to control the fixed center to advance synchronously with the threading depth. In actual work, it requires three people to work together: one person operates the CNC handle of the machine tool to guide the feed, one person wrenches the tap, and one person operates the machine tool to rotate the angle. The operation is complicated and requires high coordination, resulting in low threading quality and low threading efficiency. As for the spring center for strong workpiece fixing disclosed in Chinese Utility Model Patent CN213888203U, although it is a movable center, it cannot connect the vertical lathe spindle and the tap tool and is not suitable for tapping on a vertical lathe. Utility Model Content

[0004] This invention provides a vertical lathe wire-drawing auxiliary device to solve the technical problems that existing wire-drawing auxiliary devices are complex to operate and have high matching requirements, or are not suitable for vertical lathe tapping.

[0005] According to one aspect of the present invention, a vertical lathe wire drawing auxiliary device is provided, comprising a tapered connector, a center, a connecting sleeve, an elastic element, an adapter, and a tap. The tapered connector is used to connect the vertical lathe spindle. The connecting sleeve is movably sleeved outside the center and detachably connected to the tapered connector for radial positioning and axial limiting of the center, thereby allowing the center to move axially relative to the connecting sleeve within a set range. The elastic element is arranged between the tapered connector and the center and is used to apply an elastic force to the center to move away from the tapered connector. The adapter axially abuts against the center and is inserted into the tap for circumferential positioning, radial positioning, and axial limiting of the tap, and transmits an elastic force to the tap in the same direction as the feed direction.

[0006] As a further improvement to the above technical solution:

[0007] Furthermore, the tapered connector includes a Morse tool holder for connecting the vertical lathe spindle and a cylindrical connecting part that is fixedly connected to the Morse tool holder and detachably connected to the connecting sleeve. The cylindrical connecting part has a receiving groove along the axial direction to accommodate the elastic element.

[0008] Furthermore, the outer wall of the cylindrical connecting part is provided with a threaded structure one, and the inner wall of the connecting sleeve is provided with a threaded structure two for threaded connection with the threaded structure one.

[0009] Furthermore, the inner diameter of the receiving groove is greater than or equal to the outer diameter of the tip.

[0010] Furthermore, the outer wall of the tail of the tip is provided with a limiting boss that extends radially outward, and the inner wall of the end of the connecting sleeve is provided with a limiting protrusion that extends radially inward and is used to axially abut against the limiting boss to axially limit the tip.

[0011] Furthermore, the outer diameter of the limiting boss is the same as the inner diameter of the connecting sleeve; and / or the inner diameter of the limiting protrusion is the same as the inner diameter of the tip.

[0012] Furthermore, the elastic element is a compression spring.

[0013] Furthermore, the adapter includes an adapter body, a square groove axially formed on a first end of the adapter body and engaging with a tap, a mounting groove axially formed on a second end of the adapter body, a connecting block disposed in the mounting groove and axially abutting against a tip, and a plurality of balls disposed between the mounting groove and the connecting block and arranged circumferentially along the connecting block.

[0014] Furthermore, the adapter includes an adapter body, a square groove formed axially at a first end of the adapter body and engaging with a tap, and a conical groove formed axially at a second end of the adapter body and abutting against a tip.

[0015] Furthermore, a rotating bearing for fitting outside the center is provided between the connecting sleeve and the center.

[0016] This utility model has the following beneficial effects:

[0017] This utility model's vertical lathe wire-drawing auxiliary device movably fits around the tip via a connecting sleeve and is detachably connected to a tapered connector. This sleeve provides radial positioning and axial limiting of the tip, allowing it to move axially relative to the connecting sleeve within a set range. This, in turn, applies a force to an elastic element, causing the elastic element to exert an elastic force on the tip, moving it away from the tapered connector. An adapter then axially abuts against the tip and engages with the tap, providing circumferential, radial, and axial positioning of the tap. Thus, when the tap rotates via the adapter, the tip does not participate in the rotation, ensuring stable and reliable transmission of the elastic force and preventing interference with the rotation of the rotating component. During tapping... After the vertical lathe spindle reaches the desired rotation angle, the tapered connector connects to the spindle, aligning the tap with the hole to be machined. Then, the adapter is rotated to drive the tap to rotate synchronously, thus initiating the tapping feed action. During the tap's feed movement, an elastic element applies an elastic force to the tip, moving it away from the tapered connector, ensuring the tip moves synchronously with the tap. This provides the tap with the same elastic force as the feed direction, thereby limiting the tap's radial movement and ensuring the thread perpendicularity requirement. Compared to existing technologies, this solution significantly simplifies the thread-drawing operation during tapping, reduces the difficulty of assembly, improves tapping quality and efficiency, and is suitable for vertical lathe tapping. It is highly practical and suitable for widespread promotion and application.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the vertical car wire drawing auxiliary device according to a preferred embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A side view of the rotating component in the vertical car wire drawing auxiliary device shown.

[0022] Figure 3 This is an exploded schematic diagram of the vertical car wire drawing auxiliary device of the preferred embodiment of this utility model.

[0023] Legend:

[0024] 100. Tapered connector; 110. Morse taper tool holder; 120. Cylindrical connector; 200. Center point; 210. Limiting boss; 300. Connecting sleeve; 310. Limiting protrusion; 400. Elastic element; 500. Adapter; 510. Adapter body; 520. Connecting block; 530. Ball bearing; 600. Tap. Detailed Implementation

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0026] like Figure 1 As shown, the vertical lathe wire-drawing auxiliary device of this embodiment includes a tapered connector 100, a center point 200, a connecting sleeve 300, an elastic element 400, an adapter 500, and a tap 600. The tapered connector 100 is used to connect the vertical lathe spindle. The connecting sleeve 300 is movably sleeved on the center point 200 and detachably connected to the tapered connector 100 to perform radial positioning and axial limiting of the center point 200, thereby allowing the center point 200 to move axially relative to the connecting sleeve 300 within a set range. The elastic element 400 is arranged between the tapered connector 100 and the center point 200 and is used to apply an elastic force to the center point 200 to move away from the tapered connector 100. The adapter 500 axially abuts against the center point 200 and is inserted into the tap 600 to perform circumferential positioning, radial positioning, and axial limiting of the tap 600, and to transmit an elastic force to the tap 600 in the same direction as the feed direction.

[0027] like Figure 1As shown, specifically, the vertical lathe wire-drawing auxiliary device of this utility model is movably sleeved on the outside of the tip 200 and detachably connected to the tapered connector 100 via a connecting sleeve 300. This sleeve provides radial positioning and axial limiting of the tip 200, allowing it to move axially relative to the connecting sleeve 300 within a set range. This, in turn, applies a force to the elastic element 400, causing the elastic element 400 to exert an elastic force on the tip 200 in a direction away from the tapered connector 100. The adapter 500 then axially abuts against the tip 200 and engages with the tap 600, providing circumferential, radial, and axial positioning of the tap 600. Thus, when the tap 600 is rotated via the adapter 500, the tip 200 does not participate in the rotation, ensuring the stable and reliable transmission of the elastic force by the tip 200 and preventing the tip 200 from exerting a force on the tip. The rotation of rotating parts causes interference. During tapping, after the vertical lathe spindle reaches the desired rotation angle, the tapered connector 100 connects to the vertical lathe spindle so that the tap 600 is aligned with the bottom hole to be machined. Then, the adapter 500 is rotated to drive the tap 600 to rotate synchronously, thereby performing the tapping feed action. When the tap 600 moves forward, the elastic element 400 applies an elastic force to the tip 200 in a direction away from the tapered connector 100, so that the tip 200 moves synchronously with the tap 600, giving the tap 600 the same elastic force as the feed direction, thereby limiting the radial movement of the tap 600 and thus meeting the perpendicularity requirements of the thread. Compared with the existing technology, this solution greatly simplifies the thread entry operation during tapping feed, reduces the difficulty of mating, improves tapping quality and efficiency, and is suitable for vertical lathe tapping. It is highly practical and suitable for widespread promotion and application.

[0028] like Figure 1 As shown, it should be understood that in this embodiment, the radial, axial and circumferential directions are based on the center point 200.

[0029] like Figure 1 As shown, in this embodiment, the tapered connector 100 includes a Morse taper tool holder 110 for connecting to the vertical lathe spindle and a cylindrical connecting portion 120 fixedly connected to the Morse taper tool holder 110 and detachably connected to the connecting sleeve 300. The cylindrical connecting portion 120 has a receiving groove along the axial direction to accommodate the elastic member 400. Specifically, the Morse taper tool holder 110 achieves a stable connection with the vertical lathe spindle through the Morse taper fit, and is detachably connected to the connecting sleeve 300 through the cylindrical connecting portion 120, and accommodates the elastic member 400 through the receiving groove. When the tip 200 moves toward the Morse taper tool holder 110, it squeezes the elastic member 400, thereby causing the elastic member 400 to apply an elastic force to the tip 200 in a direction away from the tapered connector 100, thus performing wire drawing during tapping.

[0030] like Figure 1As shown, in this embodiment, the outer wall of the cylindrical connecting part 120 is provided with a first threaded structure, and the inner wall of the connecting sleeve 300 is provided with a second threaded structure for threaded connection with the first threaded structure. Specifically, the cylindrical connecting part 120 and the connecting sleeve 300 are threadedly connected by the first threaded structure and the second threaded structure, which is convenient to assemble, quick to connect, and highly detachable. Furthermore, the set range can be adjusted by rotating the connecting sleeve 300.

[0031] like Figure 1 As shown, in this embodiment, the inner diameter of the receiving groove is greater than or equal to the outer diameter of the tip 200. Specifically, by making the inner diameter of the receiving groove greater than or equal to the outer diameter of the tip 200, the tip 200 is made to fit into the receiving groove, thereby increasing the set range and facilitating wire entry during tapping.

[0032] like Figure 1 As shown, in this embodiment, the outer wall of the tail of the tip 200 is provided with a limiting boss 210 extending radially outward, and the inner wall of the end of the connecting sleeve 300 is provided with a limiting protrusion 310 extending radially inward for axially abutting against the limiting boss 210 to axially limit the tip 200. Specifically, the tip 200 and the connecting sleeve 300 abut axially through the limiting boss 210 and the limiting protrusion 310, so that after the connecting sleeve 300 is connected to the tapered connector 100, the tip 200 is axially limited, thereby restricting the axial movement of the tip 200 within a set range.

[0033] like Figure 1 As shown, in this embodiment, the outer diameter of the limiting boss 210 is the same as the inner diameter of the connecting sleeve 300, so that the outer wall of the limiting boss 210 radially abuts against the inner wall of the connecting sleeve 300, thereby radially positioning the tip 200.

[0034] like Figure 1 As shown, in this embodiment, the inner diameter of the limiting protrusion 310 is the same as the inner diameter of the tip 200, so that the outer wall of the limiting protrusion 210 radially abuts against the inner wall of the connecting sleeve 300, thereby radially positioning the tip 200.

[0035] like Figure 1 As shown, in this embodiment, the elastic element 400 is a compression spring, which is pressed against the compression spring when the tip 200 moves axially, thereby causing the compression spring to apply an elastic force to the tip 200 in a direction away from the tapered connector 100. Optionally, in another embodiment, the elastic element 400 is one of a bent spring, a refillable straight spring, or a curved spring.

[0036] like Figure 1 and Figure 2As shown, in this embodiment, the adapter 500 includes an adapter body 510, a square groove formed axially on the first end of the adapter body 510 and engaging with a tap 600, a mounting groove formed axially on the second end of the adapter body 510, a connecting block 520 disposed in the mounting groove and axially abutting against the tip 200, and a plurality of balls 530 disposed between the mounting groove and the connecting block 520 and arranged circumferentially along the connecting block 520. Specifically, the tap 600 is axially inserted into a square groove on the first end of the adapter body 510 to provide radial, circumferential, and axial positioning. A mounting groove on the second end of the adapter body 510 accommodates the connecting block 520, which axially abuts against the tip 200. Multiple balls 530 arranged circumferentially between the mounting groove and the connecting block 520 ensure that the tip 200 does not rotate when the rotating body drives the tap 600, guaranteeing stable and reliable transmission of elastic force. Optionally, the connecting block 520 has a tapered groove for axial insertion with the tip 200, preventing interference from the tip 200 with the rotation of the rotating body.

[0037] Example 2

[0038] like Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that the adapter 500 includes an adapter body 510, a square groove axially formed on the first end of the adapter body 510 and engaging with the tap 600, and a conical groove axially formed on the second end of the adapter body 510 and abutting axially with the tip 200. Specifically, the tap 600 is inserted axially into the square groove on the first end of the adapter body 510 to radially, circumferentially, and axially limit the tap 600. The conical groove on the second end of the adapter body abuts axially with the tip 200, so that when the rotating body drives the tap 600 to rotate, the tip 200 does not participate in the rotation, ensuring that the elastic force transmitted by the tip 200 is stable and reliable, and avoiding interference of the tip 200 with the rotation of the rotating body.

[0039] Example 2

[0040] The difference between this embodiment and Embodiment 3 is that a rotating bearing is provided between the connecting sleeve 300 and the center tip 200 for sleeved outside the center tip 200. Specifically, the rotating bearing prevents the connecting sleeve 300 from interfering with the rotation of the rotating component when the rotating component rotates and drives the center tip 200 to rotate, thereby ensuring smooth tapping operation.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical lathe wire drawing auxiliary device, characterized in that, The assembly includes a tapered connector (100), a center (200), a connecting sleeve (300), an elastic element (400), an adapter (500), and a tap (600). The tapered connector (100) is used to connect to the spindle of the vertical lathe. The connecting sleeve (300) is movably fitted over the center (200) and detachably connected to the tapered connector (100) for radial positioning and axial limiting of the center (200), thereby allowing the center (200) to be positioned relative to the connecting sleeve within a set range. The sleeve (300) moves axially, and the elastic element (400) is arranged between the tapered connector (100) and the tip (200) to apply an elastic force to the tip (200) to move away from the tapered connector (100). The adapter (500) abuts axially with the tip (200) and is inserted into the tap (600) to perform circumferential positioning, radial positioning and axial limiting of the tap (600) and to transmit an elastic force to the tap (600) in the same direction as the feed.

2. The vertical lathe wire-drawing auxiliary device according to claim 1, characterized in that, The tapered connector (100) includes a Morse tool holder (110) for connecting the spindle of the vertical lathe and a cylindrical connecting part (120) fixedly connected to the Morse tool holder (110) and detachably connected to the connecting sleeve (300). The cylindrical connecting part (120) has a receiving groove along the axial direction for receiving the elastic element (400).

3. The vertical lathe wire-drawing auxiliary device according to claim 2, characterized in that, The outer wall of the cylindrical connecting part (120) is provided with a threaded structure one, and the inner wall of the connecting sleeve (300) is provided with a threaded structure two for threaded connection with the threaded structure one.

4. The vertical lathe wire-drawing auxiliary device according to claim 2, characterized in that, The inner diameter of the receiving groove is greater than or equal to the outer diameter of the tip (200).

5. The vertical lathe wire-drawing auxiliary device according to any one of claims 1-4, characterized in that, The outer wall of the tail of the tip (200) is provided with a limiting boss (210) extending radially outward, and the inner wall of the end of the connecting sleeve (300) is provided with a limiting protrusion (310) extending radially inward for axially abutting against the limiting boss (210) to axially limit the tip (200).

6. The vertical lathe wire-drawing auxiliary device according to claim 5, characterized in that, The outer diameter of the limiting boss (210) is the same as the inner diameter of the connecting sleeve (300); and / or The inner diameter of the limiting protrusion (310) is the same as the inner diameter of the tip (200).

7. The vertical lathe wire-drawing auxiliary device according to any one of claims 1-4, characterized in that, The elastic element (400) is a compression spring.

8. The vertical lathe wire-drawing auxiliary device according to any one of claims 1-4, characterized in that, The adapter (500) includes an adapter body (510), a square groove axially formed on the first end of the adapter body (510) and engaged with a tap (600), a mounting groove axially formed on the second end of the adapter body (510), a connecting block (520) disposed in the mounting groove and axially abutting against a tip (200), and a plurality of balls (530) disposed between the mounting groove and the connecting block (520) and arranged circumferentially along the connecting block (520).

9. The vertical lathe wire-drawing auxiliary device according to any one of claims 1-4, characterized in that, The adapter (500) includes an adapter body (510), a square groove formed axially on the first end of the adapter body (510) and engaged with a tap (600), and a conical groove formed axially on the second end of the adapter body (510) and axially abutting against a tip (200).

10. The vertical lathe wire-drawing auxiliary device according to any one of claims 1-4, characterized in that, A rotating bearing for fitting around the center (200) is provided between the connecting sleeve (300) and the center (200).

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