CN113118566A - Automatic thread machining system with dynamically adjustable machining stroke - Google Patents

Automatic thread machining system with dynamically adjustable machining stroke Download PDF

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Publication number
CN113118566A
CN113118566A CN202110432246.6A CN202110432246A CN113118566A CN 113118566 A CN113118566 A CN 113118566A CN 202110432246 A CN202110432246 A CN 202110432246A CN 113118566 A CN113118566 A CN 113118566A
Authority
CN
China
Prior art keywords
thread
following sleeve
sleeve
tail handle
machining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110432246.6A
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Chinese (zh)
Inventor
吴国斌
田德荣
孙永建
杨洋
肖星平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu CAIC Electronics Co Ltd
Original Assignee
Chengdu CAIC Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu CAIC Electronics Co Ltd filed Critical Chengdu CAIC Electronics Co Ltd
Priority to CN202110432246.6A priority Critical patent/CN113118566A/en
Publication of CN113118566A publication Critical patent/CN113118566A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
    • B23G1/18—Machines with one working spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
    • B23G1/04—Machines with one working-spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B23G1/48—Equipment or accessories specially designed for machines or devices for thread cutting for guiding the threading tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)

Abstract

The invention discloses an automatic thread machining system with a dynamically adjustable machining stroke, which comprises a tail handle, a following sleeve and a thread tapping part, wherein the following sleeve is slidably sleeved on the tail handle, and the free end of the following sleeve is detachably provided with the thread tapping part; the tail handle is vertically provided with an anti-rotation pin, the following sleeve is correspondingly provided with a waist-shaped groove, and the anti-rotation pin is connected with the waist-shaped groove in a sliding mode. The invention adopts the lead angle of the processed thread to guide the following sleeve to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.

Description

Automatic thread machining system with dynamically adjustable machining stroke
Technical Field
The invention belongs to the technical field of thread tapping devices, and particularly relates to an automatic thread machining system with a dynamically adjustable machining stroke.
Background
In machining, we often encounter some external thread and internal thread workpiece machining, and the common methods are: the processing method comprises the following steps of moving a die frame plate, cutting a threading tool, cutting a thread milling cutter, rolling threads, tapping a screw tap and the like, the required cost of different processing methods is different, if a product can meet the requirement, aiming at internal thread processing, the simple tapping method is the lowest cost, and the tapping method by using the screw tap has the problems that the quality and the efficiency of the internal thread cannot be effectively guaranteed due to the fact that the threads are tapped manually, and the defects that the processed threads are inclined, the tooth forms are not correct and the like are often caused. Aiming at the processing of the external thread, the simple method of moving the die holder plate is the lowest cost, and the problem of moving the die holder plate is that the quality and the efficiency of the external thread cannot be effectively ensured because the thread is manufactured by the plate, and the defects of skew, irregular tooth form and the like of the processed thread are often caused.
Disclosure of Invention
The invention aims to provide an automatic thread machining system with a dynamically adjustable machining stroke, and aims to improve the thread machining quality and efficiency. The invention adopts the lead angle of the processed thread to guide the following sleeve to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.
The invention is mainly realized by the following technical scheme:
a thread automatic processing system with a dynamically adjustable processing stroke comprises a tail handle, a following sleeve and a thread tapping part, wherein the following sleeve is slidably sleeved on the tail handle, and the thread tapping part is detachably arranged at the free end of the following sleeve; the tail handle is vertically provided with an anti-rotation pin, the following sleeve is correspondingly provided with a waist-shaped groove, and the anti-rotation pin is connected with the waist-shaped groove in a sliding mode. The anti-rotation pin can prevent the following sleeve from rotating relative to the tail handle.
When the tail handle is used, the tail handle is fixed in a taper hole of a lathe tailstock or a main shaft of a drilling machine, the thread tapping part is fixed on the following sleeve, when the main shaft is started to rotate, the tail handle rotates in one direction, at the moment, the following sleeve and the thread tapping part move forwards simultaneously to perform thread tapping, after the main shaft is machined to a preset length, the main shaft rotates in the opposite direction, at the moment, the tail handle rotates in the opposite direction, and the following sleeve and the thread tapping part retreat backwards and separate from the end face of a machined part simultaneously to finish thread machining.
In order to better realize the invention, a step hole is formed at the free end of the following sleeve corresponding to the thread tapping part, a positioning screw is vertically arranged at one side of the following sleeve, and the positioning screw extends into the step hole and is fixedly abutted against one end of the thread tapping part. The following sleeve is provided with a mounting hole corresponding to the tail handle, plays a role in centering when the thread is tapped, and moves synchronously along with the tapping part due to the positioning of the positioning screw when the thread is processed.
In order to better realize the invention, further, the other end of the following sleeve is provided with a mounting hole corresponding to the tail handle, and the side wall of the mounting hole is correspondingly provided with a waist-shaped groove.
In order to better implement the present invention, further, the tapping portion is a tap or a die.
In the use process, aiming at the processing of the internal thread, the internal thread is processed through the screw tap, during the processing, the tail handle is arranged in a taper hole of a lathe tailstock or a main shaft of a drilling machine, the following sleeve and the screw tap are guided to the end face of the internal thread of a processed workpiece, and when the main shaft is started to rotate, the following sleeve and the screw tap move forwards, so that the internal thread is tapped; when the main shaft is reversely started to rotate, the following sleeve and the screw tap are reversely withdrawn. The following sleeve and the screw tap are coaxially cut, so that the tooth form and the thread quality of the internal thread are guaranteed, and the coaxiality of the internal thread and the required axial lead is effectively controlled.
During the use of the external thread processing machine, the external thread is processed through the threading die aiming at the processing of the external thread, the tail handle is pushed into and fixed in a main shaft hole of a lathe tailstock or a drilling machine during the processing, then, a part needing the external thread processing is installed and clamped, the following sleeve is manually pulled to enable the end face of the processed section of the external thread to be in contact with the orifice of the threading die, and the main shaft is started to enable a processed piece to rotate. The following sleeve moves forwards while being sleeved by the external thread until the required processing length is reached. And finally, reversing the main shaft, and moving the main shaft in the reverse direction along with the sleeve until the main shaft is separated from the end face of the processed workpiece, so that the processing of the external thread is finished. The invention effectively keeps the tooth form of the external thread and effectively ensures the coaxiality of the external thread and the required axial lead by following the coaxial cutting of the upper threading die; the invention has simple structure and convenient operation, and can be widely applied to the processing and manufacturing process of the external thread. In the process of sleeving the external thread, cooling liquid needs to be continuously added to the cutting part of the die, so that the thread achieves due roughness.
In order to better implement the invention, further, a taper shank or a straight shank is arranged at the free end of the tail shank, and is connected with the taper hole of the sleeve of the tail seat of the equipment or the taper hole of the main shaft through the taper shank or the straight shank. The tail handle can be clamped through tools such as a spring chuck and the like, so that the tail handle can be fixed and can support and guide the following sleeve.
In order to better implement the invention, further, the length of the processing thread is less than or equal to the length of the waist-shaped groove.
The invention has the beneficial effects that:
the invention adopts the lead angle of the processed thread to guide the following sleeve to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an internal thread following manufacturing device;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a state diagram after the internal thread is processed by a distance H;
FIG. 4 is a schematic structural view of the tap;
FIG. 5 is a schematic structural view of an external thread following manufacturing apparatus;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a view showing the external thread processed by a distance H;
fig. 8 is a schematic structural view of the die.
Wherein: 1. the screw tap comprises a screw tap body 2, a positioning screw 3, a following sleeve 4, an anti-rotation pin 5, a tail handle and a screw die 6.
Detailed Description
Example 1:
a thread automatic processing system with a dynamically adjustable processing stroke comprises a tail handle 5, a following sleeve 3 and a thread tapping part, wherein the following sleeve 3 is slidably sleeved on the tail handle 5, and the thread tapping part is detachably arranged at the free end of the following sleeve 3; an anti-rotation pin 4 is vertically arranged on the tail handle 5, a waist-shaped groove is correspondingly arranged on the following sleeve 3, and the anti-rotation pin 4 is connected with the waist-shaped groove in a sliding mode.
Further, follow the free end of cover 3 and correspond the screw tapping portion and be provided with the step hole, and follow one side of cover 3 and be provided with set screw 2 perpendicularly, set screw 2 stretches into the step hole and with the fixed butt of one end of screw tapping portion. Follow cover 3 and correspond tail-stock 5 and set up the mounting hole, play the centering effect when the screw is attacked, when processing the screw, follow cover 3 because set screw 2's location, along with the synchronous motion of screw attack portion.
Furthermore, the other end of the following sleeve 3 is provided with a mounting hole corresponding to the tail handle 5, and a waist-shaped groove is correspondingly arranged on the side wall of the mounting hole. The anti-rotation pin 4 can prevent the following sleeve 3 from rotating relative to the tail handle 5, and the anti-rotation pin 4 is arranged in a linear sliding mode along the length direction of the waist-shaped groove.
Further, as shown in fig. 1 and 4, and fig. 5 and 8, the tapping portion is a tap 1 or a die 6.
In the use process of the invention, firstly, the tail handle 5 is fixed in a taper hole of a lathe tailstock or a main shaft of a drilling machine, the thread tapping part is fixed on the following sleeve 3, when the main shaft is started to rotate, the tail handle 5 rotates towards one direction, at the moment, the following sleeve 3 and the thread tapping part move forwards simultaneously to perform thread tapping, after the main shaft is machined to a preset length, the main shaft rotates towards the opposite direction, at the moment, the tail handle 5 rotates towards the opposite direction, and the following sleeve 3 and the thread tapping part simultaneously retreat backwards to be separated from the end face of a machined workpiece, thereby completing the thread machining. The invention realizes the tapping of internal threads through the tap 1 and external threads through the die 6.
The invention adopts the lead angle of the processed thread to guide the following sleeve 3 to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual thread tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.
Example 2:
the utility model provides a screw thread automatic processing system with adjustable processing stroke developments, as shown in fig. 1-4, includes caudal peduncle 5, follows cover 3, screw tap 1, follow cover 3 slip cover and establish in the outside of caudal peduncle 5, and follow the free end of cover 3 and be fixed with screw tap 1 through set screw 2. An anti-rotation pin 4 is vertically arranged on the tail handle 5, a waist-shaped groove is correspondingly arranged on the following sleeve 3, and two ends of the anti-rotation pin 4 are respectively connected with the waist-shaped groove in a sliding mode. As shown in fig. 2, the maximum stroke of the thread machining is equal to the length L of the waist-shaped groove. Only a square handle is arranged at one end of the screw tap 1, and the positioning screw 2 is fixedly abutted to the square handle of the screw tap 1.
In the using process, before machining, a tail handle 5 is pushed into a main shaft rotary hole fixed in a lathe tailstock or a drilling machine, an anti-rotation pin 4 on the tail handle 5 is arranged in a linear sliding mode along the length direction of a waist-shaped groove, a part needing internal thread machining is installed and clamped, a following sleeve 3 is pulled manually to enable an end orifice of a machined section of the internal thread to be in contact with the front end of a screw tap 1, and a main shaft is started to enable a machined part to rotate to tap the internal thread; or fixing the part to be processed with the internal thread, manually guiding and installing the main shaft of the device, enabling the front end of the screw tap 1 to be in contact with the orifice of the internal thread bottom hole of the workpiece to be processed, and starting the main shaft to tap. As shown in fig. 3, the follower sleeve 3 is now advanced with the tap 1 during the internal thread tapping to the desired processing length H. And (3) reversing the main shaft, and moving the following sleeve 3 along with the screw tap 1 in the reverse direction until the following sleeve is separated from the end face of the processed workpiece, so that the processing of the internal thread is finished. In the process of sleeving and taking the internal thread, cooling liquid needs to be continuously added to the cutting part of the screw tap 1, so that the thread achieves due roughness.
The invention adopts the lead angle of the processed thread to guide the following sleeve 3 to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual thread tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.
Example 3:
a thread automatic processing system with a dynamically adjustable processing stroke is shown in figures 5-8 and comprises a tail handle 5, a following sleeve 3 and a threading die 6, wherein the following sleeve 3 is slidably sleeved on the outer side of the tail handle 5, and the free end of the following sleeve 3 is fixed with the threading die 6 through a positioning screw 2. An anti-rotation pin 4 is vertically arranged on the tail handle 5, a waist-shaped groove is correspondingly arranged on the following sleeve 3, and two ends of the anti-rotation pin 4 are respectively connected with the waist-shaped groove in a sliding mode. As shown in fig. 6, the maximum stroke of the thread machining is equal to the length L of the kidney groove. And the threading die 6 is provided with a positioning concave hole corresponding to the positioning screw 2.
In the using process, the external thread is machined through the threading die 6, the tail handle 5 is pushed and fixed into a spindle hole of a lathe tailstock or a drilling machine during machining, then a part needing to be subjected to external thread machining is installed and clamped, the following sleeve 3 is manually pulled to enable the end face of the section to be subjected to external thread machining to be in contact with an orifice of the threading die 6, and the spindle is started to enable a machined part to rotate. As shown in fig. 7, the follower bush 3 is moved forward while the external thread is being tightened up to the required working length H. And finally, reversing the main shaft, and moving the main shaft in the reverse direction along with the sleeve 3 until the main shaft is separated from the end face of the processed workpiece, so that the processing of the external thread is finished. The invention effectively keeps the tooth form of the external thread and effectively ensures the coaxiality of the external thread and the required axial lead by following the coaxial cutting of the screw die 6 on the sleeve 3; the invention has simple structure and convenient operation, and can be widely applied to the processing and manufacturing process of the external thread. In the process of sleeving the external thread, cooling liquid needs to be continuously added to the cutting part of the die 6 to ensure that the thread has proper roughness.
The invention adopts the lead angle of the processed thread to guide the following sleeve 3 to move forward, thereby eliminating the defects of uneven stress, inconvenient guide, interrupted processing, irregular tooth shape and the like caused by manual thread tapping, ensuring that the processing process of the thread is stable and continuous, improving the thread quality, reducing the operation intensity and improving the processing efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims (6)

1. The automatic thread machining system with the dynamically adjustable machining stroke is characterized by comprising a tail handle (5), a following sleeve (3) and a thread tapping part, wherein the following sleeve (3) is sleeved on the tail handle (5) in a sliding manner, and the thread tapping part is detachably arranged at the free end of the following sleeve (3); the tail handle (5) is vertically provided with an anti-rotation pin (4), the following sleeve (3) is correspondingly provided with a waist-shaped groove, and the anti-rotation pin (4) is connected with the waist-shaped groove in a sliding mode.
2. The automatic thread machining system with the dynamically adjustable machining stroke as claimed in claim 1, wherein a stepped hole is formed in the free end of the following sleeve (3) corresponding to the thread tapping portion, a positioning screw (2) is vertically arranged on one side of the following sleeve (3), and the positioning screw (2) extends into the stepped hole and is fixedly abutted against one end of the thread tapping portion.
3. The automatic thread machining system with the dynamically adjustable machining stroke according to claim 2, characterized in that the other end of the following sleeve (3) is provided with a mounting hole corresponding to the tail handle (5), and a waist-shaped groove is correspondingly arranged on the side wall of the mounting hole.
4. The automatic thread machining system with the dynamically adjustable machining stroke according to any one of claims 1 to 3, characterized in that the thread tapping portion is a tap (1) or a die (6).
5. The automatic thread machining system with the dynamically adjustable machining stroke according to the claim 1 is characterized in that a taper shank or a straight shank is arranged at the free end of the tail shank (5) and is connected with a taper hole of a sleeve of a tail seat of equipment or a taper hole of a main shaft through the taper shank or the straight shank.
6. The automatic thread machining system with the dynamically adjustable machining stroke according to claim 1, wherein the length of the machined thread is less than or equal to the length of the kidney groove.
CN202110432246.6A 2021-04-21 2021-04-21 Automatic thread machining system with dynamically adjustable machining stroke Pending CN113118566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110432246.6A CN113118566A (en) 2021-04-21 2021-04-21 Automatic thread machining system with dynamically adjustable machining stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110432246.6A CN113118566A (en) 2021-04-21 2021-04-21 Automatic thread machining system with dynamically adjustable machining stroke

Publications (1)

Publication Number Publication Date
CN113118566A true CN113118566A (en) 2021-07-16

Family

ID=76778807

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110432246.6A Pending CN113118566A (en) 2021-04-21 2021-04-21 Automatic thread machining system with dynamically adjustable machining stroke

Country Status (1)

Country Link
CN (1) CN113118566A (en)

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