Reinforcing tailstock for fixing machine tool

Abstract

The utility model discloses a reinforcing tailstock for fixing a machine tool, which relates to the technical field of machine tool tailstocks, and comprises a tailstock main body and a sleeve arranged in the tailstock main body, the end part of the sleeve is fixedly provided with a tip, the outer side of the tip is sleeved with a protective tube, and one end of the protective tube close to the tip is fixedly provided with an annular plate; an annular sealing air bag is fixedly arranged on the inner wall of the annular plate, the inner wall of the annular sealing air bag makes contact with the outer wall of the tip, a sealing ring is fixedly arranged at the end, away from the tip, of the protection pipe, and a plurality of connecting bolts are arranged between the sealing ring and the tailstock body in a screwed mode. The tailstock can seal and wrap the connecting part of the tip, the sleeve and the tailstock main body, so that cuttings and impurities are prevented from entering the tailstock main body to influence the transmission precision, and the use effect of the tailstock is ensured.

Description

Technical Field

[0001] This utility model relates to the field of machine tool tailstock technology, specifically to a reinforced tailstock for fixing machine tools. Background Technology

[0002] The tailstock is an important accessory for machine tools, mainly used to assist in supporting and positioning the workpiece to ensure machining accuracy and improve machining efficiency. The tailstock consists of a tailstock body and a sleeve located inside the tailstock body. The sleeve can move inside the tailstock body, thereby driving the center to move and clamping the workpiece. Since the sleeve can slide inside the tailstock body, it means that the sleeve and the inside of the tailstock body are in sliding contact with each other and there is a contact gap. At this time, during the workpiece cutting process, the chips generated by the machining will enter the inside of the sleeve through the contact gap due to the airflow and the splashing of cutting fluid. This affects the connection of components such as the lead screw inside the sleeve, causing the lead screw to be unable to push the center accurately and stably, thus reducing the effectiveness of the tailstock.

[0003] Therefore, we propose a reinforced tailstock for fixed machine tools to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the current reinforced tailstock for fixed machine tools, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a reinforced tailstock for fixed machine tools, which solves the problem that the tailstock and sleeve are in sliding contact, and external cutting impurities can easily enter the tailstock through the contact gap, thus affecting the fitting accuracy of the lead screw and nut.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reinforced tailstock for a fixed machine tool includes a tailstock body and a sleeve disposed inside the tailstock body. A center point is fixedly provided at one end of the sleeve. A protective tube is sleeved on the outer side of the center point. An annular plate is fixedly provided at one end of the protective tube near the center point. An annular sealing airbag is fixedly provided on the inner wall of the annular plate. The inner wall of the annular sealing airbag contacts the outer wall of the center point. A sealing ring is fixedly provided at one end of the protective tube away from the center point. Multiple connecting bolts are screwed between the sealing ring and the tailstock body.

[0008] Preferably, the protective tube is a corrugated expansion joint protective tube.

[0009] Preferably, grooves are provided on both sides of the outer wall of the annular plate, and an air nozzle is provided inside the groove. The end of the air nozzle passes through the annular plate and is connected to the annular sealing airbag. A one-way gas valve is fixedly sleeved on the outer wall of the air nozzle.

[0010] The outer side of the air nozzle is provided with a protective cover, and an elastic moving mechanism is provided between the protective cover and the annular plate.

[0011] Preferably, the elastic moving mechanism includes a guide spring, the outer wall of the annular plate is provided with a moving groove and a slot, the moving groove and slot are connected to the groove, the protective cover is disposed in the moving groove and slot, the inner wall of the moving groove is provided with guide grooves on both sides, the protective cover is fixedly provided with a guide plate, the end of the guide plate is slidably disposed in the guide groove, the guide spring is located in the moving groove, and its two ends are fixedly connected to the inner wall of the moving groove and the protective cover respectively, and the outer wall of the protective cover is fixedly provided with a pull plate.

[0012] Furthermore, a fixing ring is fixedly provided on the inner wall of both the air nozzle and the groove, and a connecting ring is rotatably inserted through the inside of the fixing ring, and a tension spring is fixedly provided between the two connecting rings.

[0013] Preferably, a horizontal plate is fixedly provided on both sides of the outer wall of the annular plate, a positioning bolt is threaded through the internal thread of the horizontal plate, and a threaded groove is opened on the outer wall of the tip to cooperate with the positioning bolt.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model, through the tailstock body, sleeve, tip, protective tube, annular plate, annular sealing airbag and sealing ring, can seal and wrap the connection parts of the tip, sleeve and tailstock body, so as to avoid chips and impurities from entering the tailstock body and affecting the transmission accuracy, and ensure the tailstock's performance.

[0016] 2. This utility model, through the provided annular plate, annular sealing airbag, groove, air nozzle, elastic moving mechanism and protective cover, can allow air to enter and exit the annular sealing airbag, ensuring that the protective tube is in sealed contact with the outer wall of the tip while facilitating the disassembly and separation of the tip, thus improving the ease of use of the tailstock. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a side view of the annular plate of this utility model.

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of part A.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Tailstock body; 2. Sleeve; 3. Center; 4. Protective tube; 5. Annular sealing airbag; 6. Sealing ring; 7. Connecting bolt; 8. Annular plate; 9. Air nozzle; 10. Gas check valve; 11. Protective cover; 12. Guide spring; 13. Guide groove; 14. Guide plate; 15. Pull plate; 16. Fixing ring; 17. Connecting ring; 18. Tension spring; 19. Horizontal plate; 20. Positioning bolt. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses a reinforced tailstock for a fixed machine tool.

[0026] This utility model provides, for example Figure 1-4 The embodiment shown includes a reinforced tailstock for a fixed machine tool, comprising a tailstock body 1 and a sleeve 2 disposed inside the tailstock body 1. The sleeve 2 is characterized by having a center point 3 fixedly disposed at its end, a protective tube 4 sleeved on the outer side of the center point 3, the protective tube 4 being a corrugated telescopic protective tube, an annular plate 8 fixedly disposed at the end of the protective tube 4 near the center point 3, an annular sealing airbag 5 fixedly disposed on the inner wall of the annular plate 8, the inner wall of the annular sealing airbag 5 contacting the outer wall of the center point 3, a sealing ring 6 fixedly disposed at the end of the protective tube 4 away from the center point 3, and multiple connecting bolts 7 screwed between the sealing ring 6 and the tailstock body 1. Horizontal plates 19 are fixedly disposed on both sides of the outer wall of the annular plate 8, and positioning bolts 20 are threaded through the internal threads of the horizontal plates 19. The outer wall of the center point 3 has threaded grooves for the positioning bolts 20 to pass through.

[0027] In order to ensure that the annular sealing airbag 5 is stably and securely fitted on the outside of the tip 3, such as Figure 3-4 As shown, grooves are provided on both sides of the outer wall of the annular plate 8, and an air nozzle 9 is provided inside the groove. The end of the air nozzle 9 passes through the annular plate 8 and is connected to the annular sealing airbag 5. A gas one-way valve 10 is fixedly sleeved on the outer wall of the air nozzle 9.

[0028] The outer side of the air nozzle 9 is covered with a protective cover 11. An elastic moving mechanism is provided between the protective cover 11 and the annular plate 8. The elastic moving mechanism includes a guide spring 12. The outer wall of the annular plate 8 is provided with a moving groove and a slot. The moving groove and slot are connected to the groove. The protective cover 11 is located in the moving groove and slot. Guide grooves 13 are provided on both sides of the inner wall of the moving groove. A guide plate 14 is fixedly inserted inside the protective cover 11. The end of the guide plate 14 is slidably disposed in the guide groove 13. The guide spring 12 is located in the moving groove, and its two ends are fixedly connected to the inner wall of the moving groove and the protective cover 11, respectively. A pull plate 15 is fixedly provided on the outer wall of the protective cover 11. A fixing ring 16 is fixedly provided on the inner wall of both the air nozzle 9 and the groove. A connecting ring 17 is rotatably inserted inside the fixing ring 16. A tension spring 18 is fixedly provided between the two connecting rings 17.

[0029] Working principle:

[0030] Before using the tailstock, the protective tube 4 is fitted over the outside of the tip 3, and the sealing gasket 7 is made to contact the side wall of the tailstock body 1. At this time, one end of the protective tube 4 is fixed with the connection of the connecting bolt 7. Then, with the cooperation of the positioning bolt 20 and the threaded groove, the setting position of the annular plate 8 and the annular sealing airbag 5 is determined.

[0031] Then, the pull plate 15 is pulled, so that the protective cover 11 moves laterally through the sliding cooperation of the guide plate 14 and the guide groove 13, and squeezes the guide spring 12. At this time, the protective cover 11 opens the groove, so that the air nozzle 9 can pop out of the groove under the elastic force of the tension spring 18. Then the air nozzle is connected to the external air source. Under the setting of the gas one-way valve 9, the annular sealing airbag 5 gradually inflates, and the inner wall of the annular airbag 5 seals against the outside of the tip 3, ensuring that the tip 3, the sleeve 2 and the tailstock body 1 are sealed and wrapped.

[0032] Under the expansion and contraction of the protective tube 4, the tip 3 can maintain a stable sealing connection during movement, minimizing the entry of external impurities into the tailstock and affecting the transmission accuracy of the screw nut inside the sleeve 2, thus improving the tailstock's performance.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reinforced tailstock for a fixed machine tool, comprising a tailstock body (1) and a sleeve (2) disposed inside the tailstock body (1), characterized in that, The sleeve (2) is fixedly provided with a tip (3) at its end. A protective tube (4) is sleeved on the outside of the tip (3). An annular plate (8) is fixedly provided at the end of the protective tube (4) near the tip (3). An annular sealing airbag (5) is fixedly provided on the inner wall of the annular plate (8). The inner wall of the annular sealing airbag (5) is in contact with the outer wall of the tip (3). A sealing ring (6) is fixedly provided at the end of the protective tube (4) away from the tip (3). Multiple connecting bolts (7) are screwed between the sealing ring (6) and the tailstock body (1).

2. The reinforced tailstock for a fixed machine tool according to claim 1, characterized in that, The protective pipe (4) is a corrugated expansion protective pipe.

3. The reinforced tailstock for a fixed machine tool according to claim 1, characterized in that, The outer wall of the annular plate (8) is provided with grooves on both sides. An air nozzle (9) is provided inside the groove. The end of the air nozzle (9) passes through the annular plate (8) and is connected to the annular sealing airbag (5). A gas one-way valve (10) is fixedly sleeved on the outer wall of the air nozzle (9). The outer side of the air nozzle (9) is provided with a protective cover (11), and an elastic moving mechanism is provided between the protective cover (11) and the annular plate (8).

4. The reinforced tailstock for a fixed machine tool according to claim 3, characterized in that, The elastic moving mechanism includes a guide spring (12), the outer wall of the annular plate (8) is provided with a moving groove and a slot, the moving groove and slot are connected to the groove, the protective cover (11) is provided in the moving groove and slot, the inner wall of the moving groove is provided with guide grooves (13) on both sides, the protective cover (11) is fixedly provided with a guide plate (14), the end of the guide plate (14) is slidably provided in the guide groove (13), the guide spring (12) is located in the moving groove, and its two ends are fixedly connected to the inner wall of the moving groove and the protective cover (11) respectively, and the outer wall of the protective cover (11) is fixedly provided with a pull plate (15).

5. The reinforced tailstock for a fixed machine tool according to claim 3, characterized in that, The air nozzle (9) and the inner wall of the groove are both fixed with a fixing ring (16), and a connecting ring (17) is rotatably passed through the inside of the fixing ring (16). A tension spring (18) is fixed between the two connecting rings (17).

6. The reinforced tailstock for a fixed machine tool according to claim 1, characterized in that, Both sides of the outer wall of the annular plate (8) are fixed with horizontal plates (19), and the internal threads of the horizontal plates (19) are threaded with positioning bolts (20). The outer wall of the tip (3) is provided with threaded grooves that cooperate with the positioning bolts (20).

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