Tool for machining internal and external threads on rear tail bed of lathe

Abstract

The utility model provides a tool for machining internal and external threads on a rear tail lathe of a lathe, which belongs to the technical field of tapping tools and comprises a rear connecting handle, an embedding groove is arranged at one end of the rear connecting handle, a clamping block is clamped and detachably connected in the embedding groove, a plurality of elastic collet chucks are arranged on the clamping block along the circumference direction in a surrounding manner, and the collet chucks are arranged on the rear connecting handle. The rear connecting handle is in threaded connection with a spring chuck nut, the spring chuck nut is provided with a screw hole which can sleeve and extrude the collet chucks to move relatively, a threading die is detachably connected among the collet chucks, a screw tap and a Morse connecting rod are detachably connected to the threading die, and the Morse connecting rod is arranged at one end, deviating from the embedding groove, of the rear connecting handle. The Morse connecting rod is sleeved with and detachably connected with a Morse reducing sleeve. By arranging the collet chucks, the collet chucks are controlled to be relatively close to each other through the spring chuck nuts, so that the threading die is clamped and fixed, threading dies and screw taps of different specifications can be clamped by replacing the collet chucks of different models, and the machining efficiency of threads of different specifications is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thread tapping tooling, in particular to a tooling for machining internal and external threads on a tail bed of a lathe. Background Art

[0002] Thread machining is a mechanical machining process, which is mainly used to produce internal or external threads on workpieces. These threads are used for various purposes such as connection, fixing or transmitting power. It includes turning, milling, tapping, threading, grinding, grinding and other methods. Each method is suitable for different production conditions and requirements. However, the existing lathes can usually only process specific parts of certain size when thread machining, and their applicability is low.

[0003] In order to address the above problems, a Chinese patent with the existing announcement number CN214518015U proposes a lathe thread processing device, which fixes parts of different sizes by utilizing the reset function of the spring. At the same time, the position of the die is adjusted by the mutual cooperation between the screw rod and the nut, the depth of the thread is controlled, and the applicability of the equipment is improved.

[0004] However, although the above-mentioned lathe thread processing device can fix parts of different sizes by resetting the spring, and adjust the position of the die by using the cooperation of the screw rod and the nut, the die installation position of the lathe thread processing device is fixed, and the die cannot be quickly replaced according to threads of different specifications, thereby reducing the processing efficiency of threads of different specifications. Therefore, the utility model provides a tooling for processing internal and external threads on the tail bed of a lathe to meet the needs. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a tooling for machining internal and external threads on the tail bed of a lathe.

[0006] The technical problem to be solved by the utility model is to provide a tool for processing internal and external threads on the tail bed of a lathe to solve the problem that the die installation position of the existing lathe thread processing tool is fixed, and the die cannot be quickly replaced according to threads of different specifications, thereby reducing the processing efficiency of threads of different specifications.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A tooling for machining internal and external threads on a lathe tail bed, comprising:

[0009] A rear connecting handle, one end of which is provided with an embedding groove, a clamping block is clamped and detachably connected in the embedding groove, a plurality of elastic collets are arranged around the clamping block along its circumference direction, a spring collet nut is threadedly connected to the rear connecting handle, a screw hole is provided on the spring collet nut for sleeve-mounting and squeezing a plurality of collets to move relative to each other, a die is detachably connected between the plurality of collets, so that the spring collet nut drives the plurality of collets to gather together to clamp the die, and a tap is detachably connected to the die;

[0010] A Morse connecting rod is arranged at one end of the rear connecting handle away from the embedding groove, and a Morse reducing sleeve is sleeved on the Morse connecting rod and detachably connected thereto.

[0011] Preferably, sliders are relatively fixedly connected on both sides of the clamping block, and a slide groove 1 for the slider to slide into is provided in the rear connecting handle, and the slide groove 1 is connected to the embedding groove.

[0012] Preferably, the material of the collet is spring steel.

[0013] Preferably, the die is located at the screw hole, and the diameter of the screw hole is larger than the diameter of the die.

[0014] Preferably, an insert block is fixedly connected to the tap, a limiting groove is relatively provided on the insert block, a through hole for inserting the insert block is provided on the die, and a limiting mechanism for limiting the limiting groove is provided in the die.

[0015] Preferably, the limiting mechanism comprises:

[0016] A double-headed screw rod is rotatably arranged in the die, a threaded block is sleeved at both ends of the double-headed screw rod and threadedly connected, a sliding groove two for the threaded block to slide is arranged in the die, a connecting rod is fixedly connected to the threaded block, the connecting rod is fixedly connected to the limiting rod facing the limiting groove, and the limiting rod is configured to limit the limiting groove;

[0017] A rotating rod is rotatably connected to the die, a bevel gear 1 is sleeved on the rotating rod, a bevel gear 2 meshing with the bevel gear 1 is sleeved on the double-headed screw, and an end of the rotating rod away from the bevel gear 1 extends to the outside of the die.

[0018] Preferably, a movable groove for allowing the connecting rod and the limiting rod to move is provided in the die, and the limiting groove is connected to the sliding groove.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] In the above scheme, by setting a collet, multiple collets are controlled to move relatively close together through the spring collet nut to achieve the clamping and fixing of the die, so that different specifications of dies and taps can be clamped by replacing collets of different models, so that a set of tooling can process internal and external threads of various specifications, thereby improving the efficiency of processing threads of different specifications.

[0021] In the above scheme, by providing a slider and a slide groove 1, the slider and the slide groove 1 can limit the clamping block, thereby preventing the clamping block and the collet from rotating during the clamping process.

[0022] In the above scheme, a limiting mechanism is provided to limit the limiting groove, thereby improving the installation efficiency of the tap and the die, and preventing the tap from loosening from the die during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is an exploded view of the utility model;

[0026] Figure 3 For this utility model Figure 2 A schematic diagram of the structure from another perspective;

[0027] Figure 4 It is a partial structural schematic diagram of the slider and the slideway of the utility model;

[0028] Figure 5 It is a partial structural schematic diagram of the plug block, the limiting groove and the through hole of the utility model;

[0029] Figure 6 It is a partial structural schematic diagram of the limiting mechanism of the utility model.

[0030] [reference numerals]

[0031] 1. Spring collet nut; 2. Collet; 3. Rear connecting handle; 4. Morse connecting rod; 5. Morse reducing sleeve; 6. Die; 7. Tap; 8. Snap-on block; 9. Limiting mechanism; 91. Rotating rod; 92. Bevel gear one; 93. Bevel gear two; 94. Double-headed screw; 95. Threaded block; 96. Connecting rod; 97. Limiting rod; 98. Slide groove two; 10. Screw hole; 11. Slider; 12. Slide groove one; 13. Through hole; 14. Insert block; 15. Limiting groove; 16. Movable groove; 17. Embedded groove. DETAILED DESCRIPTION

[0032] like Figures 1 to 6 As shown, an embodiment of the utility model provides a tooling for machining internal and external threads on the rear tail bed of a lathe, comprising a rear connecting handle 3, one end of which is provided with an embedding groove 17, a clamping block 8 is clamped and detachably connected in the embedding groove 17, a plurality of elastic collets 2 are arranged around the clamping block 8 along its circumference direction, a spring chuck nut 1 is threadedly connected to the rear connecting handle 3, the spring chuck nut 1 is provided with a screw hole 10 that can be sleeved and squeezed to move multiple collets 2 relative to each other, a die 6 is detachably connected between the multiple collets 2, so that the spring chuck nut 1 drives the multiple collets 2 to gather together to clamp the die 6, a tap 7 is detachably connected to the die 6, a Morse connecting rod 964, which is arranged at the end of the rear connecting handle 3 away from the embedding groove 17, and a Morse reducing sleeve 5 is sleeved and detachably connected on the Morse connecting rod 964.

[0033] The screw thread of the present invention is the same as the screw thread of the present invention, and the screw thread of the present invention is the same as the screw thread of the present invention, and the screw thread of the present invention is the same as the screw thread of the present invention, so that the screw thread of the present invention can be directly used for the production of the screw thread of the present invention.

[0034] It should be noted that, generally speaking, when the prior art adopts the tooling screws to fix the die 6, the overall fixing strength is general, and the fixing screws are easily deformed and damaged, and the die 6 is easy to slip when processing high-hardness, difficult-to-cut materials. Compared with the former, the present embodiment adopts the collet 2 type locking, which has a strong fixing strength and is not easy to slip and be damaged when processing high-hardness, difficult-to-cut materials; further, the Morse reducer 5, the Morse connecting rod 964 and the spring collet nut 1 can be connected by threaded connection or card connection for limiting. When the three of them are connected by thread, the threaded connection direction is the same, and the threaded connection direction between the three is opposite to the direction in which the lathe drives them to rotate, so as to avoid loosening when the device rotates.

[0035] like Figure 4As shown, in this embodiment, sliders 11 are relatively fixedly connected on both sides of the clamping block 8, and a sliding groove 12 for the slider 11 to slide into is provided in the rear connecting handle 3, and the sliding groove 12 is connected to the embedding groove 17. Specifically, the setting of the slider 11 and the sliding groove 12 can limit the clamping block 8.

[0036] like Figures 2 to 4 As shown, in this embodiment, the material of the collet 2 is preferably spring steel, the die 6 is located at the screw hole 10, and the diameter of the screw hole 10 is larger than the diameter of the die 6.

[0037] like Figure 5 and Figure 6 As shown, in this embodiment, the tap 7 is fixedly connected with an insert block 14, and a limiting groove 15 is relatively provided on the insert block 14. The die 6 is provided with a through hole 13 for inserting the insert block 14, and the die 6 is provided with a limiting mechanism 9 for limiting the limiting groove 15. The limiting mechanism 9 includes a double-headed screw 94, which is rotatably arranged in the die 6. The two ends of the double-headed screw 94 are sleeved and threadedly connected with a threaded block 95. The die 6 is provided with a slide groove 98 for the threaded block 95 to slide. The threaded block 95 is fixedly connected with a connecting rod 96. The connecting rod 96 is fixedly connected to the limiting rod 97 opposite to the limiting groove 15, and the limiting rod 97 is configured to limit the limiting groove 15. The rotating rod 91 is rotatably connected to the die 6. The rotating rod 91 is sleeved with a bevel gear 1 92, and the double-headed screw 94 is sleeved with a bevel gear 2 93 meshing with the bevel gear 1 92. The end of the rotating rod 91 away from the bevel gear 1 92 extends to the outside of the die 6. The die 6 is provided with a movable groove 16 for the connecting rod 96 and the limiting rod 97 to move, and the limiting groove 15 is connected to the slide groove 2 98.

[0038] Specifically, when it is necessary to install the tap 7 and the die 6, the rotating rod 91 drives the bevel gear 1 92 to rotate, the bevel gear 1 92 drives the bevel gear 2 93 to rotate, and the bevel gear 2 93 drives the double-headed screw 94 to rotate, so that the two threaded blocks 95 move away from each other, that is, drive the limit rod 97 to move into the movable groove 16, and then insert the plug 14 of the tap 7 into the through hole 13, so that the limit groove 15 and the limit rod 97 are arranged opposite to each other, and then reverse the rotating rod 91, so that the double-headed screw 94 is reversed and drives the two threaded blocks 95 to move closer to each other, that is, the limit rod 97 is inserted into the limit groove 15 for positioning. The overall operation is simple and the linkage is high, which improves the installation efficiency of the tap 7 and the die 6 and avoids the tap 7 from loosening with the die 6 during work.

[0039] Working principle:

[0040] The screw thread of the present invention is the same as the screw thread of the present invention, and the screw thread of the present invention is the same as the screw thread of the present invention, and the screw thread of the present invention is the same as the screw thread of the present invention, and the screw thread of the present invention is the same as the screw thread of the present invention.

Claims

1. A tool for machining internal and external threads on a lathe tail bed, characterized in that: include: A rear connecting handle (3) is provided with an embedding groove (17) at one end thereof, a clamping block (8) is clamped and detachably connected in the embedding groove (17), a plurality of elastic collets (2) are arranged around the clamping block (8) along its circumference direction, a spring chuck nut (1) is threadedly connected to the rear connecting handle (3), a screw hole (10) is provided on the spring chuck nut (1) for sleeve-mounting and squeezing the plurality of collets (2) to move relative to each other, a die (6) is detachably connected between the plurality of collets (2), so that the spring chuck nut (1) drives the plurality of collets (2) to gather together to clamp the die (6), and a tap (7) is detachably connected to the die (6); A Morse connecting rod (96) (4) is arranged at one end of the rear connecting handle (3) away from the embedding groove (17), and a Morse reducing sleeve (5) is sleeved on the Morse connecting rod (96) (4) and is detachably connected thereto.

2. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 1 is characterized in that: Slide blocks (11) are relatively fixedly connected on both sides of the clamping block (8), and a slide groove (12) for the slide block (11) to slide into is provided in the rear connecting handle (3), and the slide groove (12) is connected to the embedding groove (17).

3. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 2 is characterized in that: The material of the collet (2) is preferably spring steel.

4. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 1, characterized in that: The die (6) is located at the screw hole (10), and the diameter of the screw hole (10) is greater than the diameter of the die (6).

5. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 4 is characterized in that: The tap (7) is fixedly connected with an insert block (14), the insert block (14) is relatively provided with a limiting groove (15), the die (6) is provided with a through hole (13) for the insert block (14) to be inserted, and the die (6) is provided with a limiting mechanism (9) for limiting the limiting groove (15).

6. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 5, characterized in that: The limiting mechanism (9) comprises: A double-headed screw (94) is rotatably arranged in the die (6), and a threaded block (95) is sleeved and threadedly connected at both ends of the double-headed screw (94), and a second slide groove (98) is provided in the die (6) for the threaded block (95) to slide, and a connecting rod (96) is fixedly connected to the threaded block (95), and the connecting rod (96) is fixedly connected to a limiting rod (97) facing the limiting groove (15), and the limiting rod (97) is configured to limit the limiting groove (15); A rotating rod (91) is rotatably connected to the die (6); a bevel gear 1 (92) is sleeved on the rotating rod (91); a bevel gear 2 (93) meshing with the bevel gear 1 (92) is sleeved on the double-headed screw (94); an end of the rotating rod (91) away from the bevel gear 1 (92) extends to the outside of the die (6).

7. The tooling for machining internal and external threads on the rear bed of a lathe according to claim 6, characterized in that: The die (6) is provided with a movable groove (16) for the connecting rod (96) and the limiting rod (97) to move, and the limiting groove (15) is connected to the second slide groove (98).

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