Floating centering head of threading machine tool

Abstract

The utility model discloses a threading machine tool floating centering head which comprises a floating top head and a supporting connecting rod and further comprises a fixing assembly, the fixing assembly is used for fixedly connecting the floating top head and the supporting connecting rod, one end of the floating top head is provided with a penetrating groove, a containing groove, a liquid discharging groove and a sealing gasket, and the liquid discharging groove is used for discharging accumulated water in the containing groove. The sealing gasket is used for sealing a gap between the fixing assembly and the containing groove, and the floating assembly is used for preventing the supporting connecting rod from bending. By means of the design of the floating top head, the fixing assembly, the sealing gasket and the liquid discharging groove, when the floating top head abuts against a pipe and the outer wall of the pipe is machined through the threading roller, cooling liquid or water flows into the containing groove but cannot flow into the penetrating groove under the limitation of the sealing gasket, and therefore the cooling liquid or the water cannot flow into the threaded groove, and the effect that the outer wall of the pipe is machined is achieved. And therefore, the rusting condition of the fixing screw rod is reduced.

Description

Technical Field

[0001] The utility model relates to the field of threading machine tools, in particular to a floating centering head of a threading machine tool. Background Art

[0002] When a threading machine is used to process pipe threads, a floating head is required to press the end of the pipe, thereby rotating the threading roller to process threads on the outer wall of the pipe.

[0003] The floating jack is usually fixedly connected to the supporting connecting rod by bolts. When the outer wall of the pipe is threaded, lubricant or water is usually poured to cool the contact area between the pipe and the thread roller, which will cause some lubricant or water to flow to the connection area between the bolt and the supporting connecting rod, resulting in rust and affecting the removal of the bolt when replacing the floating jack later. Utility Model Content

[0004] The utility model aims to provide a floating centering head for a threading machine tool to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floating centering head for a threading machine tool, comprising a floating head and a supporting connecting rod, wherein the supporting connecting rod is used for installing the floating head, and further comprising:

[0006] A fixing assembly, the fixing assembly is arranged at one end of the floating mandrel, the fixing assembly is used for fixing the floating mandrel and the supporting connecting rod, and one end of the floating mandrel is provided with a through-slot and a receiving slot for installing the fixing assembly;

[0007] A drainage trough, the drainage trough is arranged inside the receiving trough, and the drainage trough is used to discharge the accumulated water in the receiving trough;

[0008] A sealing gasket, which is arranged inside the receiving groove and is used to seal the gap between the fixing component and the receiving groove;

[0009] A floating assembly is arranged on the outer wall of the end of the supporting connecting rod, and the floating assembly is used to prevent the supporting connecting rod from bending.

[0010] Preferably, a groove for inserting a supporting connecting rod is formed at the other end of the floating jack, the groove and the through-slot are interconnected, and the through-slot and the receiving slot are interconnected.

[0011] Preferably, the fixing assembly includes a fixing nut and a fixing screw, one side of the fixing nut is fixedly connected to one end of the fixing screw, the fixing screw is inserted into the through-slot hole, and the fixing nut is inserted into the receiving groove.

[0012] Preferably, the sealing gasket is sleeved on the outer wall of one end of the fixing screw rod close to the fixing nut, and the sealing gasket is arranged in the receiving groove.

[0013] Preferably, a thread groove is formed at one end of the supporting connecting rod facing the floating jack, and the fixing screw is threadably connected to the thread groove.

[0014] Preferably, the outer wall of the support connecting rod near one end of the floating jack is provided with a floating gasket, and the floating assembly includes a first floating sleeve and a second floating sleeve, the first floating sleeve and the second floating sleeve are both provided on the outer wall of the floating gasket, the first floating sleeve is arranged between the floating jack and the second floating sleeve, and the second floating sleeve is provided with a connecting piece for connecting to the floating gasket at one end near the floating gasket.

[0015] Preferably, the connecting member comprises a fixing block, one end of which is fixedly connected to one end of the second floating sleeve, and one end of the floating gasket away from the floating head is provided with a slot for inserting the fixing block.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model utilizes the design of a floating plug, a fixed component, a sealing gasket and a drainage groove. When the floating plug supports the tube and the outer wall of the tube is processed by a threading roller, coolant or water flows in from the receiving groove, but cannot flow into the threading groove due to the restriction of the sealing gasket, so that the coolant or water cannot flow into the inside of the thread groove, thereby reducing the occurrence of rust on the fixed screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model.

[0019] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure.

[0020] In the figure: 1. floating head; 2. floating assembly; 21. first floating sleeve; 22. second floating sleeve; 23. clamping block; 3. floating gasket; 4. supporting connecting rod; 5. fixing assembly; 51. fixing nut; 52. fixing screw; 6. threaded groove; 7. sealing gasket; 8. drainage groove. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides Figure 1-2 A floating centering head for a threading machine tool shown in the figure comprises a floating pin 1 and a supporting connecting rod 4, wherein the supporting connecting rod 4 is used for installing the floating pin 1, and further comprises:

[0023] A fixing assembly 5, which is arranged at one end of the floating plug 1, and is used for fixing the floating plug 1 and the supporting connecting rod 4. A through-slot and a receiving slot for installing the fixing assembly 5 are provided at one end of the floating plug 1;

[0024] A drainage trough 8 is provided inside the receiving trough and is used to discharge the accumulated water in the receiving trough;

[0025] A sealing gasket 7 is arranged inside the receiving groove and is used to seal the gap between the fixing component 5 and the receiving groove;

[0026] The floating assembly 2 is arranged on the outer wall of the end of the supporting connecting rod 4, and the floating assembly 2 is used to prevent the supporting connecting rod 4 from bending.

[0027] Specifically, a groove for inserting the supporting connecting rod 4 is provided at the other end of the floating jack 1, the groove and the through-slot are interconnected, and the through-slot and the receiving groove are interconnected. The fixing assembly 5 includes a fixing nut 51 and a fixing screw 52, ​​one side of the fixing nut 51 is fixedly connected to one end of the fixing screw 52, ​​the fixing screw 52 is inserted in the through-slot, and the fixing nut 51 is inserted in the receiving groove. A sealing gasket 7 is sleeved on the outer wall of the fixing screw 52 near one end of the fixing nut 51, and the sealing gasket 7 is arranged in the receiving groove. A threaded groove 6 is provided at one end of the supporting connecting rod 4 facing the floating jack 1, and the fixing screw 52 is threadably inserted and connected with the threaded groove 6.

[0028] Furthermore, the size of the groove of the floating jack 1 matches the size of the end of the supporting connecting rod 4, the size of the through-slot is 1.01 times the size of the fixed screw 52, ​​the size of the thread groove 6 matches the size of the fixed screw 52, ​​the thread of the inner wall of the thread groove 6 meshes with the thread of the outer wall of the fixed screw 52, ​​the sealing gasket 7 is an elastic rubber ring, and the inner diameter of the sealing gasket 7 is 1.02 times the outer diameter of the fixed screw 52. When connecting the supporting connecting rod 4 and the floating jack 1, the supporting connecting rod 4 is inserted into the groove, and then the sealing gasket 7 is placed in the receiving groove, and then the fixed screw 52 is inserted into the receiving groove and the sealing gasket 7 is inserted into the receiving groove. , through the slot, and finally threadedly connected with the thread groove 6, so that the fixing nut 51 is gradually retracted into the receiving groove. When the fixing nut 51 cannot rotate, the connection between the floating head 1 and the supporting connecting rod 4 can be completed. At this time, the sealing gasket 7 is squeezed to fill the gap between the fixing nut 51 and the receiving groove. When the water flows into the receiving groove, it cannot flow into the through slot through the sealing gasket 7 and then flow into the thread groove 6, thereby ensuring that the outer wall of the fixing screw 52 and the inner wall of the thread groove 6 will not rust. Then, under the action of the drainage groove 8, the water flowing into the receiving groove is guided and discharged, thereby preventing the water from gathering for a long time.

[0029] Specifically, the outer wall of the supporting connecting rod 4 near the floating jack 1 is sleeved with a floating gasket 3, and the floating assembly 2 includes a first floating sleeve 21 and a second floating sleeve 22. The first floating sleeve 21 and the second floating sleeve 22 are both sleeved on the outer wall of the floating gasket 3. The first floating sleeve 21 is arranged between the floating jack 1 and the second floating sleeve 22. The second floating sleeve 22 is provided with a connecting piece for connecting with the floating gasket 3 at one end near the floating gasket 3. The connecting piece includes a clamping block 23. One end of the clamping block 23 is fixedly connected to one end of the second floating sleeve 22. A clamping groove for inserting the clamping block 23 is provided at the end of the floating gasket 3 away from the floating jack 1.

[0030] Furthermore, the floating gasket 3 and the second floating sleeve 22 are integrally formed, the first floating sleeve 21 and the second floating sleeve 22 are respectively split floating sleeves, the opposite ends of the first floating sleeve 21 and the second floating sleeve 22 are respectively opened as inclined surfaces that fit each other, the size of the fixing block 23 is adapted to the slot, the first floating sleeve 21 and the second floating sleeve 22 are positioned and installed under the extrusion limiting action of the floating head 1 and the floating gasket 3, the first floating sleeve 21, the second floating sleeve 22 and the floating gasket 3 can increase the service life of the supporting connecting rod 4 and avoid bending of the supporting connecting rod 4 due to bending of the pipe, and through the radial floating action of the floating sleeve, the thread processing quality defects caused by tail stock jitter can be reduced.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A floating centering head for a threading machine tool, comprising a floating centering head (1) and a supporting connecting rod (4), wherein the supporting connecting rod (4) is used for installing the floating centering head (1), and is characterized in that: Also includes: A fixing assembly (5), the fixing assembly (5) being arranged at one end of the floating jack (1), the fixing assembly (5) being used for fixing the floating jack (1) and the supporting connecting rod (4), and a through-slot and a receiving slot for installing the fixing assembly (5) being provided at one end of the floating jack (1); A drainage trough (8), the drainage trough (8) being arranged inside the receiving trough, and the drainage trough (8) being used to discharge the accumulated water in the receiving trough; A sealing gasket (7), the sealing gasket (7) being arranged inside the receiving groove, the sealing gasket (7) being used to seal the gap between the fixing component (5) and the receiving groove; A floating component (2) is arranged on the outer wall of the end of the supporting connecting rod (4), and the floating component (2) is used to prevent the supporting connecting rod (4) from bending.

2. A floating centering head for a threading machine tool according to claim 1, characterized in that: The other end of the floating jack (1) is provided with a groove for inserting the supporting connecting rod (4), the groove and the through-slot are interconnected, and the through-slot is interconnected with the receiving slot.

3. The floating centering head for a threading machine tool according to claim 1, characterized in that: The fixing assembly (5) comprises a fixing nut (51) and a fixing screw (52), one side of the fixing nut (51) is fixedly connected to one end of the fixing screw (52), the fixing screw (52) is inserted into the through-slot, and the fixing nut (51) is inserted into the receiving slot.

4. A floating centering head for a threading machine tool according to claim 3, characterized in that: The sealing gasket (7) is sleeved on the outer wall of the fixing screw (52) close to one end of the fixing nut (51), and the sealing gasket (7) is arranged in the receiving groove.

5. The floating centering head for a threading machine tool according to claim 3, characterized in that: A thread groove (6) is formed at one end of the supporting connecting rod (4) facing the floating jack (1), and the fixing screw rod (52) is threadably connected to the thread groove (6).

6. The floating centering head for a threading machine tool according to claim 1, characterized in that: The outer wall of the supporting connecting rod (4) near the floating jack (1) is provided with a floating gasket (3), and the floating assembly (2) comprises a first floating sleeve (21) and a second floating sleeve (22), the first floating sleeve (21) and the second floating sleeve (22) are both sleeved on the outer wall of the floating gasket (3), the first floating sleeve (21) is arranged between the floating jack (1) and the second floating sleeve (22), and the second floating sleeve (22) is provided with a connecting piece for connecting with the floating gasket (3) at one end near the floating gasket (3).

7. A floating centering head for a threading machine tool according to claim 6, characterized in that: The connecting piece comprises a fixing block (23), one end of which is fixedly connected to one end of the second floating sleeve (22), and a slot for inserting the fixing block (23) is provided at one end of the floating gasket (3) away from the floating head (1).

Images