Lathe thread sleeve processing tool

Abstract

The utility model relates to a lathe thread sleeve processing frock, including the taper handle for connecting lathe tailstock, connecting sleeve, die sleeve and die, connecting sleeve is cylindrical, connecting sleeve activity suit is installed in the taper handle outside, and is fixed relatively with the taper handle through first bolt, die sleeve activity is inserted in the side away from the taper handle of connecting sleeve, and is fixed relatively with connecting sleeve through second bolt, the side away from connecting sleeve of die sleeve is opened and has die groove, and die activity is placed in die groove, and is fixed relatively with die sleeve through third bolt, the processing frock of the utility model installs the taper handle in lathe tailstock, realizes quick installation and automatic positioning, connecting sleeve is locked with the taper handle through first bolt, and die sleeve is fixed with connecting sleeve through second bolt, forms three -level detachable module, can pre -assemble different specifications die sleeve group, directly replaces module when processing, need not repeatedly adjust position, improves the thread processing efficiency, effectively reduces the security risk and the operation hidden danger.

Description

Technical Field

[0001] This utility model relates to the field of lathe auxiliary tooling technology, and in particular to a lathe thread sleeve machining tooling. Background Technology

[0002] Currently, when machining M16 threads on machined components, a straight-handle wrench fixture is used. During the machining process, because the wrench cannot be fixed around its perimeter, personnel need to hold the fixture down with their hands while the equipment is running at low speed to prevent the wrench from rotating. This process poses significant safety risks and operational hazards, and can easily lead to accidents such as being struck by objects or causing mechanical injuries.

[0003] Therefore, this utility model proposes a lathe thread sleeve machining fixture to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lathe thread sleeve machining fixture to improve thread machining efficiency and reduce safety risks and operational hazards.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a lathe thread sleeve machining fixture, the innovation of which is: including Taper shank used for connecting to the tailstock of a lathe; A connecting sleeve, which is cylindrical in shape, is movably fitted onto the outside of the cone handle and is fixed relative to the cone handle by a first bolt; The die sleeve is movably inserted into the connecting sleeve on the side away from the taper shank and is relatively fixed to the connecting sleeve by a second bolt; The die sleeve has a die groove on the side away from the connecting sleeve. The die is movably placed in the die groove and is relatively fixed to the die sleeve by a third bolt.

[0006] Furthermore, the tapered shank includes a flat end, a conical section, a first expanded diameter cylindrical section, and a first reduced diameter cylindrical section arranged sequentially along the axial direction. The first expanded diameter cylindrical section is located at the large end of the conical section, and the outer diameter of the first expanded diameter cylindrical section is larger than the outer diameter of the large end of the conical section. The connecting sleeve is movably fitted on the outside of the first reduced diameter cylindrical section.

[0007] Furthermore, the connecting sleeve has a waist-shaped groove for the first bolt to pass through, and the first reduced-diameter cylindrical section has a first threaded hole that matches the first bolt. The first bolt passes through the waist-shaped groove and is threaded into the first threaded hole.

[0008] Furthermore, the die sleeve includes a second reduced-diameter cylindrical section and a second expanded-diameter cylindrical section arranged sequentially along the axial direction. The second reduced-diameter cylindrical section is inserted into the connecting sleeve, and the connecting sleeve has a second threaded hole that matches the second bolt. The second bolt is threaded into the second threaded hole, and the end of the second bolt abuts against the side wall of the second reduced-diameter cylindrical section.

[0009] Furthermore, the tooth groove is opened on the end face of the second expanded cylindrical section away from the second reduced cylindrical section. Three third threaded holes matching the third bolts are evenly opened on the outer wall of the second expanded cylindrical section along the outer circle direction. Each third threaded hole is internally threaded with a third bolt, and the end of the third bolt abuts against the side wall of the tooth.

[0010] Furthermore, a chip removal groove is formed on the side wall of the second reduced-diameter cylindrical section, the chip removal groove extends to the bottom surface of the die groove, and communicates with the central threaded hole of the die installed in the die groove.

[0011] The advantages of this utility model are: (1) The machining fixture of this utility model makes full use of the lathe tailstock, installs the taper shank on the lathe tailstock, realizes quick installation and automatic positioning, eliminates manual centering deviation, the connecting sleeve is locked to the taper shank by the first bolt, and the die sleeve is fixed to the connecting sleeve by the second bolt, forming a three-level detachable module. Operators can pre-assemble die sleeve groups of different specifications, and directly replace the modules during processing without repeated adjustment of the position, which improves the thread processing efficiency. The entire fixture is completely fixed on the lathe tailstock, and the operator only needs to control the feed handle and keep his hands away from the lathe spindle area, which effectively reduces safety risks and operational hazards.

[0012] (2) When the tapered shank of this utility model is installed, the flat end is inserted into the corresponding slot of the lathe tailstock to achieve axial positioning. The tapered section provides the basic tapered fit, so as to achieve high-precision positioning and automatic centering of the tapered shank and the lathe spindle. The first expanded diameter cylindrical section is located at the large end of the tapered section and has a larger outer diameter, forming an additional support surface, increasing the contact area with the lathe tailstock, and improving the overall rigidity. The design of the first reduced diameter cylindrical section facilitates the installation of the connecting sleeve.

[0013] (3) The connecting sleeve of this utility model has a waist-shaped groove for the first bolt to pass through, which is beneficial to adjust the axial installation position of the connecting sleeve on the taper shank, thereby adjusting the distance between the die and the screw rod fixed on the lathe spindle jaw.

[0014] (4) The die sleeve of this utility model includes a second reduced diameter cylindrical section and a second expanded diameter cylindrical section arranged sequentially along the axial direction. The second expanded diameter cylindrical section and the second reduced diameter cylindrical section cooperate to form a stepped surface, which plays a limiting role for the die sleeve and prevents the die sleeve from entering the connecting sleeve completely and being unable to be pulled out.

[0015] (5) This utility model provides that by uniformly opening three third threaded holes on the outer wall of the second expanded cylindrical section, the third bolts in the three third threaded holes apply balanced pressure to the die from multiple points, ensuring that the die fits tightly in the die groove and eliminating the risk of radial displacement.

[0016] (6) This utility model opens a chip removal groove on the second reduced diameter cylindrical section, and the chip removal groove is connected to the threaded hole in the middle of the die installed in the die groove, so that the drill chips generated during the threading process are discharged through the chip removal groove. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the lathe threaded sleeve machining tool of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the die sleeve and die of this utility model. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Example This embodiment provides a lathe tooling for machining threaded sleeves, such as... Figure 1-2 As shown, it includes a taper shank 1, a connecting sleeve 2, a die sleeve 3, and a die 4 for connecting to the tailstock of a lathe.

[0022] The taper shank 1 includes a flat end 101, a conical section 102, a first expanded diameter cylindrical section 103, and a first reduced diameter cylindrical section 104, which are coaxially arranged along the axial direction. The first expanded diameter cylindrical section 103 is located at the larger end of the conical section 102, and the outer diameter of the first expanded diameter cylindrical section 103 is larger than the outer diameter of the larger end of the conical section 102. When the taper shank 1 is installed on the lathe tailstock, the flat end 101 is inserted into the slot in the corresponding mounting hole of the lathe tailstock to achieve axial positioning. The conical section 102 is inserted into the mounting hole to provide a basic taper fit, enabling high-precision positioning and automatic alignment of the taper shank 1 with the lathe spindle. The first expanded diameter cylindrical section 103 is located at the larger end of the conical section 102 and has a larger outer diameter, forming an additional support surface, increasing the contact area with the lathe tailstock, and improving overall rigidity.

[0023] The connecting sleeve 2 is cylindrical and is movably and coaxially fitted onto the outside of the first reduced-diameter cylindrical section 104, and is relatively fixed to the tapered shank 1 by the first bolt 501. The connecting sleeve 2 has a waist-shaped slot 201 through which the first bolt 501 passes, and the first reduced-diameter cylindrical section 104 has a first threaded hole that matches the first bolt 501. The first bolt 501 passes through the waist-shaped slot 201 and is threaded into the first threaded hole. The design of the waist-shaped slot 201 facilitates adjustment of the axial installation position of the connecting sleeve 2 on the tapered shank 1, thereby adjusting the distance between the die 4 and the screw guide fixed on the lathe spindle jaws.

[0024] The die sleeve 3 includes a second reduced-diameter cylindrical section 301 and a second expanded-diameter cylindrical section 302 arranged sequentially along the axial direction. The second reduced-diameter cylindrical section 301 is movably inserted into the side of the connecting sleeve 2 away from the tapered shank 1 and is relatively fixed to the connecting sleeve 2 by a second bolt 502. Three second threaded holes matching the second bolts 502 are evenly opened on the side wall of the connecting sleeve 2 along the circumferential direction. Each second threaded hole corresponds to a second bolt, and the second bolt 502 is threaded into the corresponding second threaded hole. The end of the second bolt 502 abuts against the side wall of the second reduced-diameter cylindrical section 301.

[0025] The die sleeve 3 has a die groove on the side away from the connecting sleeve 2. The die groove is located on the end face of the second expanded diameter cylindrical section 302 away from the second reduced diameter cylindrical section 301. The die 4 is movably placed in the die groove and is relatively fixed to the die sleeve 3 by the third bolt 503. Three third threaded holes 304, matching the third bolts 503, are evenly opened along the outer circle direction on the outer wall of the second expanded diameter cylindrical section 301. Each third threaded hole is threaded with a third bolt, and the end of the third bolt 503 abuts against the side wall of the die 4. A chip removal groove 303 is opened on the side wall of the second reduced diameter cylindrical section 301. The chip removal groove 303 extends to the bottom surface of the die groove and communicates with the middle threaded hole of the die 4 installed in the die groove, so that the drill chips generated during the threading process are discharged through the chip removal groove 303.

[0026] When using this machining fixture, dies of different specifications are pre-installed in die sleeves of corresponding sizes to form die sleeve sets. The appropriate die sleeve set is then installed on the taper shank via a connecting sleeve. The taper shank is then installed on the lathe tailstock, enabling rapid installation and automatic positioning, eliminating manual alignment errors. The screw rod to be machined is installed in the chuck of the lathe spindle. The operator controls the feed handle, driving the lathe tailstock closer to the spindle, causing the die to gradually approach the screw rod. The lathe spindle rotates, driving the screw rod to rotate as well. The screw rod then enters the threaded hole in the center of the die for tapping, thus achieving the purpose of cutting threads on the workpiece. The use of this machining fixture reduces operational risks while increasing efficiency from 0.11 hours / piece to 0.05 hours / piece, a 54.5% increase.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lathe tooling for machining threaded sleeves, characterized in that: include Taper shank used for connecting to the tailstock of a lathe; A connecting sleeve, which is cylindrical in shape, is movably fitted onto the outside of the cone handle and is fixed relative to the cone handle by a first bolt; The die sleeve is movably inserted into the connecting sleeve on the side away from the taper shank and is relatively fixed to the connecting sleeve by a second bolt; The die sleeve has a die groove on the side away from the connecting sleeve. The die is movably placed in the die groove and is relatively fixed to the die sleeve by a third bolt.

2. The lathe threaded sleeve machining fixture according to claim 1, characterized in that: The tapered shank includes a flat end, a conical section, a first expanded diameter cylindrical section, and a first reduced diameter cylindrical section arranged sequentially along the axial direction. The first expanded diameter cylindrical section is located at the large end of the conical section, and the outer diameter of the first expanded diameter cylindrical section is larger than the outer diameter of the large end of the conical section. The connecting sleeve is movably fitted on the outside of the first reduced diameter cylindrical section.

3. The lathe threaded sleeve machining fixture according to claim 2, characterized in that: The connecting sleeve has a waist-shaped groove for the first bolt to pass through, and the first reduced-diameter cylindrical section has a first threaded hole that matches the first bolt. The first bolt passes through the waist-shaped groove and is threaded into the first threaded hole.

4. The lathe threaded sleeve machining fixture according to claim 1, characterized in that: The die sleeve includes a second reduced-diameter cylindrical section and a second expanded-diameter cylindrical section arranged sequentially along the axial direction. The second reduced-diameter cylindrical section is inserted into the connecting sleeve. The connecting sleeve has a second threaded hole that matches the second bolt. The second bolt is threaded into the second threaded hole, and the end of the second bolt abuts against the side wall of the second reduced-diameter cylindrical section.

5. The lathe threaded sleeve machining fixture according to claim 4, characterized in that: The die groove is opened on the end face of the second expanded cylindrical section away from the second reduced cylindrical section. Three third threaded holes matching the third bolt are evenly opened on the outer wall of the second expanded cylindrical section along the outer circle direction. Each third threaded hole is internally threaded with a third bolt, and the end of the third bolt abuts against the side wall of the die.

6. The lathe threaded sleeve machining fixture according to claim 5, characterized in that: A chip removal groove is opened on the side wall of the second reduced-diameter cylindrical section. The chip removal groove extends to the bottom surface of the die groove and is connected to the middle threaded hole of the die installed in the die groove.

Images