Automatic processing device and processing method for polytetrafluoroethylene pull rod

Abstract

The invention discloses a tetrafluoro pull rod automatic machining device which comprises a machine base, a feeding assembly, a cut-off assembly, an outer circle machining assembly, a drilling assembly, an outer thread machining assembly, an inner thread machining assembly and a moving assembly, and the feeding assembly, the cut-off assembly, the outer circle machining assembly, the drilling assembly, the outer thread machining assembly, the inner thread machining assembly and the moving assembly are installed on the machine base. The drilling assembly and the internal thread machining assembly are sequentially arranged below the cut-off assembly, the outer circle machining assembly is installed at the same horizontal height as the drilling assembly and is symmetrical to the drilling assembly, and the external thread machining assembly is installed at the same horizontal height as the internal thread machining assembly and is symmetrical to the internal thread machining assembly. The feeding assembly is arranged between the cut-off assembly, the drilling assembly and the internal thread machining assembly and between the outer circle machining assembly and the external thread machining assembly, and the drilling assembly and the internal thread machining assembly are both installed on the moving assembly. The device has the beneficial effects of being high in production efficiency, high in machining precision and high in automation degree.

Description

Technical Field

[0001] The invention relates to the field of chemical machinery and equipment, and more specifically to a polytetrafluoroethylene pull rod automatic processing device and a processing method thereof. Background Art

[0002] Heat exchanger is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. The heat exchanger industry involves nearly 30 industries such as HVAC, pressure vessels, reclaimed water treatment equipment, chemicals, and petroleum.

[0003] The plate condenser is composed of an overlapping assembly structure consisting of a glass-lined bottom, a cover, a double-sided glass-lined interlayer concave-convex sheet, a nitrile rubber gasket, a U-shaped hose and fasteners. Especially for enamel or tantalum alloy plate condensers that require corrosion protection, the fasteners connecting the interlayer concave-convex sheets also need to have corrosion resistance. Stainless steel is usually used based on economic considerations, but for austenitic stainless steel, such as 201 / 304, it will be corroded by hydrochloric acid or aqua regia in the solution; for 316L stainless steel with strong corrosion resistance, it will be corroded by mixed acids containing concentrated phosphoric acid, concentrated sulfuric acid, and fluorosilicic acid at a certain temperature in the solution, so the application scope of fasteners made of stainless steel is limited.

[0004] Taking the above reasons into consideration, PTFE fasteners are used to fix the interlayer concave-convex sheets. PTFE is the abbreviation of polytetrafluoroethylene, which has the characteristics of acid and alkali resistance, resistance to various organic solvents, almost insoluble in all solvents, and high strength.

[0005] For fastener processing, 1. The end needs to be cut into the specified size; 2. One end needs to be drilled and then processed into an internal thread; 3. The other end needs to be processed into an external circle and then processed into an external thread. The previous method was: first manually cut off the required length, then process the CNC lathe: turn the external circle, process the external thread; disassemble and clamp, drill holes, and process the internal thread. Separate processing has the following defects: manual cutting, large error in the length of the pull rod; low coaxiality of the external circle and the hole during disassembly, replacement and clamping during processing; low processing efficiency and poor processing accuracy. Summary of the invention

[0006] In order to solve the above problems, the object of the present invention is to provide a polytetrafluoroethylene pull rod automatic processing device and a processing method thereof with high production efficiency, high processing accuracy and high automation.

[0007] According to one aspect of the present invention, a polytetrafluoroethylene pull rod automatic processing device is provided, which comprises: a machine base and a feeding assembly, a truncation assembly, an outer cylindrical processing assembly, a drilling assembly, an outer thread processing assembly, an inner thread processing assembly and a moving assembly installed on the machine base, the truncation assembly is installed above the machine base, the drilling assembly and the inner thread processing assembly are arranged in sequence below the truncation assembly, the outer cylindrical processing assembly is installed at the same level as the drilling assembly and is symmetrically arranged with the drilling assembly, the outer thread processing assembly is installed at the same level as the inner thread processing assembly and is symmetrically arranged with the inner thread processing assembly, the feeding assembly is arranged between the truncation assembly, the drilling assembly and the inner thread processing assembly and the outer cylindrical processing assembly and the outer thread processing assembly, a discharge rod is arranged below the inner thread processing assembly, the drilling assembly and the inner thread processing assembly are both installed on the moving assembly, and the moving assembly drives the drilling assembly and the inner thread processing assembly to approach or move away from the outer cylindrical processing assembly. The polytetrafluoroethylene pull rod is cut into a specified size by the truncation assembly, and the cut polytetrafluoroethylene pull rod is moved to the outer cylindrical processing assembly, the drilling assembly, the outer thread processing assembly and the inner thread processing assembly by the feeding assembly for processing in sequence.

[0008] In some embodiments, the feeding assembly includes: a first driving member, a mounting plate, a first sliding plate, a first linear rail, a first slider, a second driving member, a third driving member and a clamping component. The output end of the first driving member is fixedly connected to the machine base, the first linear rail is installed on the mounting plate, the first slider is sleeved on the first linear rail, the first sliding plate is fixedly connected to the first slider and the first driving member, the second driving member is installed on the first sliding plate, the second driving member is installed on the output end of the first sliding plate, and the clamping component is installed on the output end of the third driving member. The three polytetrafluoroethylene pull rods are moved downward to different processing positions in sequence through the cooperation of the first driving member, the mounting plate, the first sliding plate, the first linear rail and the first slider, and the polytetrafluoroethylene pull rods are placed in different positions through the second driving member, the third driving member and the clamping component.

[0009] In some embodiments, the clamping component includes: a mounting bar, a first clamp, a second clamp and a third clamp, wherein the first clamp, the second clamp and the third clamp are installed in parallel and at equal intervals on the mounting bar. The first clamp, the second clamp and the third clamp grasp the PTFE pull rods of different processing steps and move them.

[0010] In some embodiments, the first driving member, the second driving member and the third driving member are all cylinders, and the first clamping jaw, the second clamping jaw and the third clamping jaw are all pneumatic clamping jaws.

[0011] In some embodiments, the cutting assembly includes: a first mounting seat, a first motor, a driving wheel, a second motor, a cutting wheel, a lifting part and a limit block, the bottom of the first mounting seat is connected to the base through the lifting part, the second motor is mounted on the first mounting seat, the cutting wheel is mounted on the output end of the second motor, the first motor is connected to the driving wheel, the limit block is movably mounted on the frame through a waist-shaped hole, and the limit block is correspondingly arranged with the driving wheel;

[0012] A cutting groove is provided on the frame below the cutting wheel;

[0013] The lifting part includes: a first linear bearing, a second linear bearing and a fourth driving member, wherein the first linear bearing and the second linear bearing are connected to the first mounting seat and the frame, and the fourth driving member is fixedly mounted on the frame, and the output end of the fourth driving member is connected to the first mounting seat and drives the first mounting seat to approach or move away from the cutting groove. The driving wheel is driven by a motor to realize the loading of the PTFE pull rod, and the cutting length of the PTFE pull rod is accurately controlled by the limit block, and the cutting wheel is driven up and down by the lifting part to complete the cutting of the PTFE pull rod raw material.

[0014] In some embodiments, the external cylindrical machining assembly includes: a first moving part, a third motor and an external cylindrical turning tool, the third motor is mounted on the first moving part, the external cylindrical turning tool is mounted on the output end of the third motor, and a fourth clamp is provided between the external cylindrical turning tool and the drilling assembly. The fourth clamp clamps the tetrafluoro pull rod, and the external cylindrical turning tool is used to perform external cylindrical machining on one end of the tetrafluoro pull rod.

[0015] In some embodiments, the drilling assembly includes: a second moving part, a fourth motor and a drill bit, the fourth motor is installed on the second moving part, the drill bit is installed on the output end of the fourth motor, a fifth clamp is provided between the drill bit and the external cylindrical turning tool, the fifth clamp is used to clamp the Teflon pull rod, and one end of the Teflon pull rod is drilled by the drill bit.

[0016] In some embodiments, the external thread processing assembly includes: a third moving part, a fifth motor and an external thread turning tool, the fifth motor is mounted on the third moving part, the external thread turning tool is mounted on the output end of the fifth motor, and a sixth clamp is provided between the external thread turning tool and the internal thread processing assembly. The PTFE pull rod is clamped by the sixth clamp, and one end of the PTFE pull rod is subjected to external thread processing by the external thread turning tool.

[0017] In some embodiments, the internal thread processing assembly includes: a fourth moving part, a sixth motor and an internal thread turning tool, the sixth motor is installed on the fourth moving part, the internal thread turning tool is installed at the output end of the sixth motor, and a seventh clamp is provided between the internal thread turning tool and the external thread turning tool; the polytetrafluoroethylene pull rod is clamped by the seventh clamp, and the internal thread processing is performed on one end of the polytetrafluoroethylene pull rod by the internal thread turning tool.

[0018] The fourth moving part includes: a second linear rail, a second slider, a fifth driving member and a sliding mounting block, the second slider sleeve is arranged on the second linear rail, the sliding mounting block is fixedly connected to the second slider, and the output end of the fifth driving member is fixedly connected to the sliding mounting block and drives the sliding mounting block to reciprocate on the second linear rail;

[0019] The fourth moving part has the same structure as the first moving part, the second moving part and the third moving part. The first moving part, the second moving part, the third moving part and the fourth moving part drive the machining tool to approach the tetrafluoro rod to machine the tetrafluoro rod.

[0020] In some embodiments, the moving assembly includes: a third linear rail, a third slider and a sliding mounting plate, the third slider sleeve is arranged on the third linear rail, the back of the sliding mounting plate is connected to the third slider, the third slider is limited on the third linear rail by a locking wrench, and the driving drilling assembly and the internal thread assembly are arranged on the front of the sliding mounting plate. The moving assembly is used to adjust the maximum length of the polytetrafluoroethylene pull rod to be processed.

[0021] According to one aspect of the present invention, there is provided a method for automatically processing a polyfluoro pull rod, comprising the following steps:

[0022] S1, loading, insert the long PTFE tie rod material through the driving wheel, and the first motor drives the driving wheel to push the long PTFE tie rod material against the limit block;

[0023] S2, the second driving member and the third driving member are all in the extended state, the first clamp is in the highest position, and the first clamp clamps the front end of the long PTFE pull rod;

[0024] S3, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material A;

[0025] S4, moving downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw;

[0026] S5, clamping, the second driving member extends but the third driving member is in a retracted state, and the fourth clamping jaw and the fifth clamping jaw simultaneously clamp the two ends of the short PTFE pull rod A;

[0027] S6, reset, the first clamp is released, the second drive is also in the retracted state, the first clamp is in the lowest position, the first drive drives the mounting plate to move up to the initial position, the second drive and the third drive are both in the extended state, the first clamp is in the highest position, and at the same time the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first clamp clamps the front end of the long PTFE pull rod, and the second clamp clamps the short PTFE pull rod A;

[0028] S7, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material B;

[0029] S8, while S7 is being performed, the third motor drives the external cylindrical turning tool to rotate, the first moving part drives the external cylindrical turning tool to perform external cylindrical processing on one end of the short material A, the fourth motor drives the drill bit to rotate, the second moving part drives the drill bit to perform drilling processing on one end of the short material A, and resets;

[0030] S9, move downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw, and the second clamping jaw is at the same height as the sixth clamping jaw and the seventh clamping jaw;

[0031] S10, clamping, the second driving member is extended but the third driving member is in a retracted state, and the fourth clamp and the fifth clamp simultaneously clamp the two ends of the short PTFE pull rod B, and the sixth clamp and the seventh clamp simultaneously clamp the two ends of the short PTFE pull rod A;

[0032] S11, reset, the first clamp and the second clamp are released, the second driving member is also in the retracted state, the first clamp is in the lowest position with the second clamp, the first driving member drives the mounting plate to move up to the initial position, the second driving member and the third driving member are both in the extended state, the first clamp is in the highest position, and at the same time, the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first clamp clamps the front end of the long PTFE pull rod, the second clamp clamps the short PTFE pull rod B, and the third clamp clamps the short PTFE pull rod A;

[0033] S10, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material C;

[0034] S11. While S10 is being performed, the third motor drives the external cylindrical turning tool to rotate, the first moving part drives the external cylindrical turning tool to perform external cylindrical processing on one end of the short material B, the fourth motor drives the drill bit to rotate, the second moving part drives the drill bit to perform drilling processing on one end of the short material B, the fifth motor drives the external thread turning tool to rotate, the third moving part drives the external thread turning tool to perform external thread processing on one end of the short material A, the sixth motor drives the internal thread turning tool to rotate, the fourth moving part drives the internal thread turning tool to perform internal thread processing on one end of the short material A, and reset;

[0035] S12, move downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw, the second clamping jaw is at the same height as the sixth clamping jaw and the seventh clamping jaw, and the third clamping jaw is flush with the discharge rod;

[0036] S13, clamping, the second driving member is extended but the third driving member is in a retracted state, and the fourth clamp and the fifth clamp simultaneously clamp the two ends of the short PTFE pull rod C, and the sixth clamp and the seventh clamp simultaneously clamp the two ends of the short PTFE pull rod B;

[0037] S14, unloading reset, the first jaw, the second jaw and the third jaw are released, the second driving member is also in the retracted state, the first jaw is in the lowest position, the second jaw and the third jaw are in the lowest position, the short material A falls into the material guide trough through the unloading rod and is collected, then the first driving member drives the mounting plate to move up to the initial position, the second driving member and the third driving member are both in the extended state, the first jaw is in the highest position, and at the same time the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first jaw clamps the front end of the long PTFE pull rod, the second jaw clamps the short PTFE pull rod C, and the third jaw clamps the short PTFE pull rod B;

[0038] S15. Repeat the above steps S3-S14.

[0039] The present invention discloses an automatic processing device for polytetrafluoroethylene pull rods, which has the beneficial effects of high production efficiency, high processing accuracy and high degree of automation. The polytetrafluoroethylene pull rods are cut into specified sizes by a truncation assembly, and the cut polytetrafluoroethylene pull rods are moved to the outer circle processing assembly, the drilling assembly, the outer thread processing assembly and the inner thread processing assembly for processing in sequence by a feeding assembly; the three polytetrafluoroethylene pull rods are moved downward to different processing positions in sequence by the cooperation of the first driving member, the mounting plate, the first sliding plate, the first linear rail and the first sliding block, and the polytetrafluoroethylene pull rods are placed in different positions by the second driving member, the third driving member and the clamping member; the polytetrafluoroethylene pull rods of different processing steps are grasped and moved by the first clamp, the second clamp and the third clamp; the feeding of the polytetrafluoroethylene pull rods is realized by a motor driving the driving wheel, and the precise control of the cutting length of the polytetrafluoroethylene pull rods is realized by the limit block, and the polytetrafluoroethylene pull rods are processed by the motor. The cutting wheel is driven up and down by the lifting part to complete the cutting of the PTFE pull rod raw material; the PTFE pull rod is clamped by the fourth clamping jaw, and one end of the PTFE pull rod is turned externally by an external cylindrical turning tool; the PTFE pull rod is clamped by the fifth clamping jaw, and one end of the PTFE pull rod is drilled by a drill bit; the PTFE pull rod is clamped by the sixth clamping jaw, and one end of the PTFE pull rod is processed with an external thread turning tool; the PTFE pull rod is clamped by the seventh clamping jaw, and one end of the PTFE pull rod is processed with an internal thread turning tool; the processing tool is driven to approach the PTFE pull rod by the first moving part, the second moving part, the third moving part and the fourth moving part to process the PTFE pull rod; the maximum length of the PTFE pull rod to be processed is adjusted by the moving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of the automatic processing device for polytetrafluoroethylene tie rods of the present invention;

[0041] Figure 2 This is a front view of the automatic processing device for polytetrafluoroethylene pull rods of the present invention;

[0042] Figure 3 It is a structural schematic diagram of a feeding assembly of a polytetrafluoroethylene pull rod automatic processing device of the present invention;

[0043] Figure 4 It is a structural schematic diagram of the clamping components of the automatic processing device for polytetrafluoroethylene pull rods of the present invention;

[0044] Figure 5 It is a structural schematic diagram of a truncation assembly of a polytetrafluoroethylene pull rod automatic processing device of the present invention;

[0045] Figure 6 It is a structural schematic diagram of the outer circle processing assembly of the automatic processing device for polytetrafluoroethylene pull rods of the present invention;

[0046] Figure 7 It is a structural schematic diagram of a drilling assembly of a polytetrafluoroethylene pull rod automatic processing device of the present invention;

[0047] Figure 8 It is a structural schematic diagram of the external thread processing assembly of the automatic processing device for polytetrafluoroethylene pull rods of the present invention;

[0048] Fig. 9 It is a structural schematic diagram of the internal thread processing assembly of the automatic processing device for polytetrafluoroethylene pull rods of the present invention. DETAILED DESCRIPTION

[0049] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and equivalent changes or substitutions in functions, methods or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0051] like Figure 1 and 2As shown, the present invention discloses an automatic processing device for a polyfluoro pull rod, which comprises: a machine base 1 and a feeding assembly 2, a truncation assembly 3, an outer cylindrical processing assembly 4, a drilling assembly 5, an outer thread processing assembly 6, an inner thread processing assembly 7 and a moving assembly 8 installed on the machine base 1. The truncation assembly 3 is installed above the machine base 1, and the drilling assembly 5 and the inner thread processing assembly 7 are arranged in sequence below the truncation assembly 3. The outer cylindrical processing assembly 4 is installed at the same level as the drilling assembly 5 and is symmetrically arranged with the drilling assembly 5. The outer thread processing assembly 6 is installed at the same level as the inner thread processing assembly 7 and is symmetrically arranged with the inner thread processing assembly 7. The feeding assembly 2 is arranged between the truncation assembly 3, the drilling assembly 5 and the inner thread processing assembly 7 and the outer cylindrical processing assembly 4 and the outer thread processing assembly 6. A discharge rod 9 is provided below the inner thread processing assembly 7. The drilling assembly 5 and the inner thread processing assembly 7 are both installed on the moving assembly 8. The moving assembly 8 drives the drilling assembly 5 and the inner thread processing assembly 7 to approach or move away from the outer cylindrical processing assembly 4. The PTFE pull rod is cut into specified sizes by the cutting assembly 3, and the cut PTFE pull rod is moved to the outer circle processing assembly 4, the drilling assembly 5, the external thread processing assembly 6 and the internal thread processing assembly 7 by the feeding assembly 2 for processing in sequence.

[0052] During use, there is only a material guide groove below the discharge rod 9, which is convenient for collecting the processed PTFE pull rods together.

[0053] like Figure 3 As shown, the feeding assembly 2 includes: a first driving member 21, a mounting plate 22, a first sliding plate 23, a first linear rail 24, a first slider 25, a second driving member 26, a third driving member 27 and a clamping component 28. The output end of the first driving member 21 is fixedly connected to the machine base 1, the first linear rail 24 is installed on the mounting plate 22, the first slider 25 is sleeved on the first linear rail 24, the first sliding plate 23 is fixedly connected to the first slider 25 and the first driving member 21, the second driving member 26 is installed on the first sliding plate 23, the second driving member 26 is installed on the output end of the first sliding plate 23, and the clamping component 28 is installed on the output end of the third driving member 27. Through the cooperation of the first driving member 21, the mounting plate 22, the first sliding plate 23, the first linear rail 24 and the first slider 25, the three polytetrafluoroethylene pull rods are moved downward to different processing positions in sequence, and the polytetrafluoroethylene pull rods are placed in different positions through the second driving member 26, the third driving member 27 and the clamping component 28.

[0054] like Figure 4 As shown, the clamping component 28 includes: a mounting bar 281, a first clamping jaw 282, a second clamping jaw 283 and a third clamping jaw 284. The first clamping jaw 282, the second clamping jaw 283 and the third clamping jaw 284 are installed in parallel and at equal intervals on the mounting bar 281. The first clamping jaw 282, the second clamping jaw 283 and the third clamping jaw 284 are used to grab the polytetrafluoroethylene pull rods of different processing steps and move them.

[0055] The first driving member 21 , the second driving member 26 and the third driving member 27 are all cylinders, and the first clamping jaw 282 , the second clamping jaw 283 and the third clamping jaw 284 are all pneumatic clamping jaws.

[0056] Similarly, the fourth driving member 363 and the fifth driving member 713 are both cylinders, and the fourth clamping jaw 44, the fifth clamping jaw 54, the sixth clamping jaw 64 and the seventh clamping jaw 74 are all pneumatic clamping jaws.

[0057] During actual use, in the initial state: the first jaw 282 is at the same height as the cutting component 3, the second jaw 283 is located between the external circle processing component 4 and the drilling component 5 and is at the same height as the fourth jaw 44 and the fifth jaw 54, and the third jaw 284 is located between the external thread processing component 6 and the internal thread processing component 7 and is at the same height as the sixth jaw 64 and the seventh jaw 74.

[0058] When the cut-off assembly 3 is running, the second driving member 26 and the third driving member 27 are both in the extended state, and the first clamp 282 is in the highest position. The first clamp 282 clamps the front end of the tetrafluoro pull rod, and the cut-off assembly 3 cuts off the tetrafluoro pull rod raw material 1. The first driving member 21 drives the mounting plate 22 to move downward, so that the first clamp 282 is at the same height as the fourth clamp 44 and the fifth clamp 54. The second driving member 26 is extended but the third driving member 27 is in the retracted state. At the same time, the fourth clamp 44 and the fifth clamp 54 clamp the two ends of the tetrafluoro pull rod raw material 1 at the same time. The first clamp 282 is released, and the second driving member 26 is also in the retracted state. The first clamp 282 is in the lowest position. The first driving member 21 drives the mounting plate 22 to move up to the initial position. The second driving member 26 and the third driving member 27 are both in the extended state, and the first clamp 282 is in the highest position.

[0059] The outer circle processing component 4 and the drilling component 5 process the two ends of the polytetrafluoroethylene pull rod raw material 1. At the same time, when the cutting component 3 is running, the second driving member 26 and the third driving member 27 are both in the extended state, and the first clamping jaw 282 is in the highest position. The first clamping jaw 282 clamps the front end of the polytetrafluoroethylene pull rod, and the cutting component 3 cuts off the polytetrafluoroethylene pull rod raw material 2, and the second clamping jaw 283 clamps the polytetrafluoroethylene pull rod raw material 1; further, the first driving member 21 drives the mounting plate 22 to move downward, so that the first clamping jaw 282 is at the same height as the fourth clamping jaw 44 and the fifth clamping jaw 54, the second driving member 26 is extended but the third driving member 27 is in the retracted state, and the first The fourth jaw 44 and the fifth jaw 54 clamp the two ends of the tetrafluoro rod raw material 2 at the same time, and the second jaw 283 is at the same height as the sixth jaw 64 and the seventh jaw 74, the sixth jaw 64 and the seventh jaw 74 clamp the two ends of the tetrafluoro rod raw material 1 at the same time, and then the first jaw 282 and the second jaw 283 are released, the second driving member 26 is also in a retracted state, the first jaw 282 and the second jaw 283 are in the lowest position, the first driving member 21 drives the mounting plate 22 to move up to the initial position, the second driving member 26 and the third driving member 27 are both in an extended state, and the first jaw 282 is in the highest position.

[0060] The external thread processing component 6 and the internal thread processing component 7 process the tetrafluoro pull rod raw material 1, and the external circle processing component 4 and the drilling component 5 process the two ends of the tetrafluoro pull rod raw material 2. At the same time, when the cut-off component 3 is running, the second driving member 26 and the third driving member 27 are both in the extended state. The first clamp 282 is in the highest position, and the first clamp 282 clamps the front end of the tetrafluoro pull rod. The cut-off component 3 cuts off the tetrafluoro pull rod raw material 3, the second clamp 283 clamps the tetrafluoro pull rod raw material 2, and the third clamp 284 clamps the tetrafluoro pull rod raw material 1; further, the first driving member 21 drives the mounting plate 22 to move downward, so that the first clamp 282 is at the same height as the fourth clamp 44 and the fifth clamp 54, the second driving member 26 is extended but the third driving member 27 is in the retracted state, the fourth clamp 44 and the fifth The clamp 54 clamps both ends of the PTFE pull rod raw material 3 at the same time, and the second clamp 283 is at the same height as the sixth clamp 64 and the seventh clamp 74. The sixth clamp 64 and the seventh clamp 74 clamp both ends of the PTFE pull rod raw material 2 at the same time. The third clamp 284 grabs the PTFE pull rod raw material and moves down to the position of the discharge rod 9, and then the first clamp 282 and the second clamp 283 are released. The PTFE pull rod raw material 1 after the third clamp 284 is released falls into the guide groove through the discharge rod 9 and is collected. Then the second driving member 26 is also in a retracted state, the first clamp 282 and the second clamp 283 are in the lowest position, the first driving member 21 drives the mounting plate 22 to move up to the initial position, the second driving member 26 and the third driving member 27 are both in an extended state, and the first clamp 282 is in the highest position. The production is repeated in this way.

[0061] like Figure 5As shown, the cutting component 3 includes: a first mounting seat 31, a first motor 32, a driving wheel 33, a second motor 34, a cutting wheel 35, a lifting portion 36 and a limit block 37. The bottom of the first mounting seat 31 is connected to the base through the lifting portion 36, the second motor 34 is installed on the first mounting seat 31, the cutting wheel 35 is installed on the output end of the second motor 34, the first motor 32 is connected to the driving wheel 33, and the limit block 37 is movably installed on the frame through a waist-shaped hole. The limit block 37 is arranged corresponding to the driving wheel 33; the driving wheel 33 is directly in contact with the polytetrafluoroethylene pull rod raw material, and the middle of the driving wheel 33 has a groove that fits the outer wall of the polytetrafluoroethylene pull rod so as to drive the polytetrafluoroethylene pull rod to move forward to the position of the limit block 37 during rotation.

[0062] A cutting groove 38 is provided on the frame below the cutting wheel 35 ; the cutting groove 38 facilitates the cutting wheel 35 to move downward to complete cutting.

[0063] The lifting part 36 includes: a first linear bearing 361, a second linear bearing 362 and a fourth driving member 363, wherein the first linear bearing 361 and the second linear bearing 362 are connected to the first mounting seat 31 and the frame, and the fourth driving member 363 is fixedly mounted on the frame, and the output end of the fourth driving member 363 is connected to the first mounting seat 31 and drives the first mounting seat 31 to approach or move away from the cutting groove 38. The driving wheel 33 is driven by the motor to realize the loading of the tetrafluoro rod, and the cutting length of the tetrafluoro rod is accurately controlled by the limit block 37, and the cutting wheel 35 is driven up and down by the lifting part 36 to complete the cutting of the tetrafluoro rod raw material.

[0064] like Figure 6 As shown, the external cylindrical machining assembly 4 includes: a first moving part 41, a third motor 42 and an external cylindrical turning tool 43. The third motor 42 is mounted on the first moving part 41. The external cylindrical turning tool 43 is mounted on the output end of the third motor 42. A fourth clamping jaw 44 is provided between the external cylindrical turning tool 43 and the drilling assembly 5. The fourth clamping jaw 44 clamps the tetrafluoroethylene tie rod, and the external cylindrical turning tool 43 performs external cylindrical machining on one end of the tetrafluoroethylene tie rod.

[0065] like Figure 7 As shown, the drilling assembly 5 includes: a second moving part 51, a fourth motor 52 and a drill bit 53. The fourth motor 52 is installed on the second moving part 51. The drill bit 53 is installed at the output end of the fourth motor 52. A fifth clamp 54 is provided between the drill bit 53 and the external cylindrical turning tool 43. The fifth clamp 54 clamps the tetrafluoro rod, and the drill bit 53 is used to drill one end of the tetrafluoro rod.

[0066] like Figure 8As shown, the external thread processing assembly 6 includes: a third moving part 61, a fifth motor 62 and an external thread turning tool 63, the fifth motor 62 is mounted on the third moving part 61, the external thread turning tool 63 is mounted on the output end of the fifth motor 62, and a sixth clamping jaw 64 is provided between the external thread turning tool 63 and the internal thread processing assembly 7. The sixth clamping jaw 64 clamps the tetrafluoro rod, and the external thread turning tool 63 performs external thread processing on one end of the tetrafluoro rod.

[0067] like Fig. 9 As shown, the internal thread processing assembly 7 includes: a fourth moving part 71, a sixth motor 72 and an internal thread turning tool 73. The sixth motor 72 is installed on the fourth moving part 71. The internal thread turning tool 73 is installed at the output end of the sixth motor 72. A seventh clamping jaw 74 is provided between the internal thread turning tool 73 and the external thread turning tool 63. The polytetrafluoroethylene pull rod is clamped by the seventh clamping jaw 74, and one end of the polytetrafluoroethylene pull rod is internally threaded by the internal thread turning tool 73.

[0068] The fourth moving part 71 includes: a second linear rail 711, a second slider 712, a fifth driving member 713 and a sliding mounting block 714, the second slider 712 is sleeved on the second linear rail 711, the sliding mounting block 714 is fixedly connected to the second slider 712, and the output end of the fifth driving member 713 is fixedly connected to the sliding mounting block 714 and drives the sliding mounting block 714 to reciprocate on the second linear rail 711;

[0069] The fourth moving part 71 has the same structure as the first moving part 41, the second moving part 51 and the third moving part 61. The first moving part 41, the second moving part 51, the third moving part 61 and the fourth moving part drive the machining tool to approach the tetrafluoro rod to machine the tetrafluoro rod.

[0070] The moving assembly 8 includes: a third linear rail 81, a third slider 82 and a sliding mounting plate 83. The third slider 82 is sleeved on the third linear rail 81. The back of the sliding mounting plate 83 is connected to the third slider 82. The third slider 82 is limited on the third linear rail 81 by a locking wrench. The driving drilling assembly 5 and the internal thread assembly are arranged on the front of the sliding mounting plate 83. The moving assembly 8 is used to adjust the maximum length of the polytetrafluoroethylene pull rod to be processed.

[0071] During use, the position of the sliding mounting plate 83 is adjusted as required, and then the position of the limit block 37 is adjusted to obtain the precise cutting length of the PTFE pull rod.

[0072] A method for automatically processing a polytetrafluoroethylene pull rod comprises the following steps:

[0073] S1, loading, inserting the long PTFE pull rod material through the driving wheel 33, and the first motor 32 drives the driving wheel 33 to push the long PTFE pull rod material against the limit block 37;

[0074] S2, the second driving member 26 and the third driving member 27 are all in the extended state, the first clamping jaw 282 is in the highest position, and the first clamping jaw 282 clamps the front end of the long PTFE pull rod;

[0075] S3, cutting, the second motor 34 drives the cutting wheel 35 to rotate, and the fourth driving member 363 drives the cutting wheel 35 to move downward to complete the cutting, forming a short material A;

[0076] S4, move downward, the first driving member 21 drives the mounting plate 22 to move downward, so that the first clamping jaw 282 is at the same height as the fourth clamping jaw 44 and the fifth clamping jaw 54;

[0077] S5, clamping, the second driving member 26 is extended but the third driving member 27 is in a retracted state, and the fourth clamping jaw 44 and the fifth clamping jaw 54 clamp both ends of the short PTFE pull rod A at the same time;

[0078] S6, reset, the first clamping jaw 282 is released, the second driving member 26 is also in the retracted state, the first clamping jaw 282 is in the lowest position, the first driving member 21 drives the mounting plate 22 to move up to the initial position, the second driving member 26 and the third driving member 27 are both in the extended state, the first clamping jaw 282 is in the highest position, and at the same time, the first motor 32 drives the driving wheel 33 to push the long PTFE pull rod against the limit block 37, the first clamping jaw 282 clamps the front end of the long PTFE pull rod, and the second clamping jaw 283 clamps the short PTFE pull rod A;

[0079] S7, cutting, the second motor 34 drives the cutting wheel 35 to rotate, and the fourth driving member 363 drives the cutting wheel 35 to move downward to complete the cutting, forming a short material B;

[0080] S8, while S7 is being performed, the third motor 42 drives the external cylindrical turning tool 43 to rotate, the first moving part 41 drives the external cylindrical turning tool 43 to perform external cylindrical processing on one end of the short material A, the fourth motor 52 drives the drill bit 53 to rotate, the second moving part 51 drives the drill bit 53 to perform drilling processing on one end of the short material A, and resets;

[0081] S9, move downward, the first driving member 21 drives the mounting plate 22 to move downward, so that the first clamping jaw 282 is at the same height as the fourth clamping jaw 44 and the fifth clamping jaw 54, and the second clamping jaw 283 is at the same height as the sixth clamping jaw 64 and the seventh clamping jaw 74;

[0082] S10, clamping, the second driving member 26 is extended but the third driving member 27 is in a retracted state, and at the same time, the fourth clamping jaw 44 and the fifth clamping jaw 54 clamp the two ends of the short PTFE pull rod B, and the sixth clamping jaw 64 and the seventh clamping jaw 74 clamp the two ends of the short PTFE pull rod A;

[0083] S11, reset, the first clamp 282 and the second clamp 283 are released, the second drive member 26 is also in the retracted state, the first clamp 282 is at the lowest position with the second clamp 283, the first drive member 21 drives the mounting plate 22 to move up to the initial position, the second drive member 26 and the third drive member 27 are both in the extended state, the first clamp 282 is at the highest position, and at the same time the first motor 32 drives the driving wheel 33 to push the long PTFE pull rod against the limit block 37, the first clamp 282 clamps the front end of the long PTFE pull rod, the second clamp 283 clamps the short PTFE pull rod B, and the third clamp 284 clamps the short PTFE pull rod A;

[0084] S10, cutting, the second motor 34 drives the cutting wheel 35 to rotate, and the fourth driving member 363 drives the cutting wheel 35 to move downward to complete the cutting, forming a short material C;

[0085] S11. While S10 is being performed, the third motor 42 drives the external cylindrical turning tool 43 to rotate, the first moving part 41 drives the external cylindrical turning tool 43 to perform external cylindrical processing on one end of the short material B, the fourth motor 52 drives the drill bit 53 to rotate, the second moving part 51 drives the drill bit 53 to perform drilling processing on one end of the short material B, the fifth motor 62 drives the external thread turning tool 63 to rotate, the third moving part 61 drives the external thread turning tool 63 to perform external thread processing on one end of the short material A, the sixth motor 72 drives the internal thread turning tool 73 to rotate, the fourth moving part 71 drives the internal thread turning tool 73 to perform internal thread processing on one end of the short material A, and resets;

[0086] S12, move downward, the first driving member 21 drives the mounting plate 22 to move downward, so that the first clamping jaw 282 is at the same height as the fourth clamping jaw 44 and the fifth clamping jaw 54, the second clamping jaw 283 is at the same height as the sixth clamping jaw 64 and the seventh clamping jaw 74, and the third clamping jaw 284 is flush with the discharge rod;

[0087] S13, clamping, the second driving member 26 is extended but the third driving member 27 is in a retracted state, and at the same time, the fourth clamping jaw 44 and the fifth clamping jaw 54 clamp the two ends of the short PTFE pull rod C, and the sixth clamping jaw 64 and the seventh clamping jaw 74 clamp the two ends of the short PTFE pull rod B;

[0088] S14, unloading is reset, the first jaw 282, the second jaw 283 and the third jaw 284 are released, the second driving member 26 is also in a retracted state, the first jaw 282 is at the lowest position, the second jaw 283 and the third jaw 284 are at the lowest position, the short material A falls into the material guide trough through the unloading rod and is collected, then the first driving member 21 drives the mounting plate 22 to move up to the initial position, the second driving member 26 and the third driving member 27 are both in an extended state, the first jaw 282 is at the highest position, and at the same time the first motor 32 drives the driving wheel 33 to push the long polytetrafluoroethylene pull rod material against the limit block 37, the first jaw 282 clamps the front end of the long polytetrafluoroethylene pull rod material, the second jaw 283 clamps the short polytetrafluoroethylene pull rod material C, and the third jaw 284 clamps the short polytetrafluoroethylene pull rod material B;

[0089] S15. Repeat the above steps S3-S14.

[0090] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. PTFE pull rod automatic processing device, characterized in that: include: A machine base and a feeding assembly, a cutting assembly, an outer cylindrical processing assembly, a drilling assembly, an outer thread processing assembly, an inner thread processing assembly and a moving assembly installed on the machine base, the cutting assembly is installed above the machine base, the drilling assembly and the inner thread processing assembly are arranged in sequence below the cutting assembly, the outer cylindrical processing assembly is installed at the same level as the drilling assembly and is symmetrically arranged with the drilling assembly, the outer thread processing assembly is installed at the same level as the inner thread processing assembly and is symmetrically arranged with the inner thread processing assembly, the feeding assembly is arranged between the cutting assembly, the drilling assembly and the inner thread processing assembly and the outer cylindrical processing assembly and the outer thread processing assembly, a unloading rod is provided below the inner thread processing assembly, the drilling assembly and the inner thread processing assembly are both installed on the moving assembly, and the moving assembly drives the drilling assembly and the inner thread processing assembly to approach or move away from the outer cylindrical processing assembly.

2. The automatic processing device for polytetrafluoroethylene tie rods according to claim 1, characterized in that: The feeding assembly includes: a first driving member, a mounting plate, a first sliding plate, a first linear rail, a first slider, a second driving member, a third driving member and a clamping component. The output end of the first driving member is fixedly connected to the machine base, the first linear rail is installed on the mounting plate, the first slider is sleeved on the first linear rail, the first sliding plate is fixedly connected to the first slider and the first driving member, the second driving member is installed on the first sliding plate, the second driving member is installed on the output end of the first sliding plate, and the clamping component is installed on the output end of the third driving member.

3. The automatic processing device for polytetrafluoroethylene tie rods according to claim 2, characterized in that: The clamping component includes: a mounting bar, a first clamp, a second clamp and a third clamp. The first clamp, the second clamp and the third clamp are installed on the mounting bar in parallel and at equal intervals. The first driving member, the second driving member and the third driving member are all cylinders. The first clamp, the second clamp and the third clamp are all pneumatic clamps.

4. The automatic processing device for polytetrafluoroethylene tie rods according to claim 3, characterized in that: The cutting assembly comprises: a first mounting seat, a first motor, a driving wheel, a second motor, a cutting wheel, a lifting part and a limit block, wherein the bottom of the first mounting seat is connected to the base through the lifting part, the second motor is mounted on the first mounting seat, the cutting wheel is mounted on the output end of the second motor, the first motor is connected to the driving wheel, the limit block is movably mounted on the frame through a waist-shaped hole, and the limit block is arranged corresponding to the driving wheel; A cutting groove is provided on the frame below the cutting wheel; The lifting part includes: a first linear bearing, a second linear bearing and a fourth driving member, the first linear bearing and the second linear bearing are connected to the first mounting seat and the frame, the fourth driving member is fixedly installed on the frame, and the output end of the fourth driving member is connected to the first mounting seat and drives the first mounting seat to approach or move away from the cutting groove.

5. The automatic processing device for polytetrafluoroethylene tie rods according to claim 4, characterized in that: The external cylindrical machining component comprises: a first moving part, a third motor and an external cylindrical turning tool, wherein the third motor is mounted on the first moving part, the external cylindrical turning tool is mounted on the output end of the third motor, and a fourth clamp is provided between the external cylindrical turning tool and the drilling component.

6. The automatic processing device for polytetrafluoroethylene tie rods according to claim 5, characterized in that: The drilling assembly comprises: a second moving part, a fourth motor and a drill bit, wherein the fourth motor is mounted on the second moving part, the drill bit is mounted on the output end of the fourth motor, and a fifth clamp is provided between the drill bit and the external cylindrical turning tool.

7. The automatic processing device for polytetrafluoroethylene tie rods according to claim 6, characterized in that: The external thread processing assembly includes: a third moving part, a fifth motor and an external thread turning tool, the fifth motor is installed on the third moving part, the external thread turning tool is installed at the output end of the fifth motor, and a sixth clamp is provided between the external thread turning tool and the internal thread processing assembly.

8. The automatic processing device for polytetrafluoroethylene tie rods according to claim 6, characterized in that: The internal thread processing assembly comprises: a fourth moving part, a sixth motor and an internal thread turning tool, wherein the sixth motor is mounted on the fourth moving part, the internal thread turning tool is mounted on the output end of the sixth motor, and a seventh clamping jaw is provided between the internal thread turning tool and the external thread turning tool; The fourth moving part comprises: a second linear rail, a second slider, a fifth driving member and a sliding mounting block, the second slider sleeve is arranged on the second linear rail, the sliding mounting block is fixedly connected to the second slider, and the output end of the fifth driving member is fixedly connected to the sliding mounting block and drives the sliding mounting block to reciprocate on the second linear rail; The fourth moving part has the same structure as the first moving part, the second moving part and the third moving part.

9. The automatic processing device for polytetrafluoroethylene tie rods according to claim 8, characterized in that: The moving assembly includes: a third linear rail, a third slider and a sliding mounting plate, the third slider sleeve is arranged on the third linear rail, the back side of the sliding mounting plate is connected to the third slider, the third slider is limited on the third linear rail by a locking wrench, and the drive drilling assembly and the internal thread assembly are arranged on the front side of the sliding mounting plate.

10. The processing method using the automatic processing device for polytetrafluoroethylene tie rods according to claim 9, characterized in that: The following steps are involved: S1, loading, insert the long PTFE tie rod material through the driving wheel, and the first motor drives the driving wheel to push the long PTFE tie rod material against the limit block; S2, the second driving member and the third driving member are all in the extended state, the first clamp is in the highest position, and the first clamp clamps the front end of the long PTFE pull rod; S3, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material A; S4, moving downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw; S5, clamping, the second driving member extends but the third driving member is in a retracted state, and the fourth clamping jaw and the fifth clamping jaw simultaneously clamp the two ends of the short PTFE pull rod A; S6, reset, the first clamp is released, the second drive is also in the retracted state, the first clamp is in the lowest position, the first drive drives the mounting plate to move up to the initial position, the second drive and the third drive are both in the extended state, the first clamp is in the highest position, and at the same time the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first clamp clamps the front end of the long PTFE pull rod, and the second clamp clamps the short PTFE pull rod A; S7, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material B; S8, while S7 is being performed, the third motor drives the external cylindrical turning tool to rotate, the first moving part drives the external cylindrical turning tool to perform external cylindrical processing on one end of the short material A, the fourth motor drives the drill bit to rotate, the second moving part drives the drill bit to perform drilling processing on one end of the short material A, and resets; S9, move downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw, and the second clamping jaw is at the same height as the sixth clamping jaw and the seventh clamping jaw; S10, clamping, the second driving member is extended but the third driving member is in a retracted state, and the fourth clamp and the fifth clamp simultaneously clamp the two ends of the short PTFE pull rod B, and the sixth clamp and the seventh clamp simultaneously clamp the two ends of the short PTFE pull rod A; S11, reset, the first clamp and the second clamp are released, the second driving member is also in the retracted state, the first clamp is in the lowest position with the second clamp, the first driving member drives the mounting plate to move up to the initial position, the second driving member and the third driving member are both in the extended state, the first clamp is in the highest position, and at the same time, the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first clamp clamps the front end of the long PTFE pull rod, the second clamp clamps the short PTFE pull rod B, and the third clamp clamps the short PTFE pull rod A; S10, cutting, the second motor drives the cutting wheel to rotate, and the fourth driving member drives the cutting wheel to move downward to complete the cutting, forming a short material C; S11. While S10 is being performed, the third motor drives the external cylindrical turning tool to rotate, the first moving part drives the external cylindrical turning tool to perform external cylindrical processing on one end of the short material B, the fourth motor drives the drill bit to rotate, the second moving part drives the drill bit to perform drilling processing on one end of the short material B, the fifth motor drives the external thread turning tool to rotate, the third moving part drives the external thread turning tool to perform external thread processing on one end of the short material A, the sixth motor drives the internal thread turning tool to rotate, the fourth moving part drives the internal thread turning tool to perform internal thread processing on one end of the short material A, and reset; S12, move downward, the first driving member drives the mounting plate to move downward, so that the first clamping jaw is at the same height as the fourth clamping jaw and the fifth clamping jaw, the second clamping jaw is at the same height as the sixth clamping jaw and the seventh clamping jaw, and the third clamping jaw is flush with the discharge rod; S13, clamping, the second driving member is extended but the third driving member is in a retracted state, and the fourth clamp and the fifth clamp simultaneously clamp the two ends of the short PTFE pull rod C, and the sixth clamp and the seventh clamp simultaneously clamp the two ends of the short PTFE pull rod B; S14, unloading reset, the first jaw, the second jaw and the third jaw are released, the second driving member is also in the retracted state, the first jaw is in the lowest position, the second jaw and the third jaw are in the lowest position, the short material A falls into the material guide trough through the unloading rod and is collected, then the first driving member drives the mounting plate to move up to the initial position, the second driving member and the third driving member are both in the extended state, the first jaw is in the highest position, and at the same time the first motor drives the driving wheel to push the long PTFE pull rod against the limit block, the first jaw clamps the front end of the long PTFE pull rod, the second jaw clamps the short PTFE pull rod C, and the third jaw clamps the short PTFE pull rod B; S15. Repeat the above steps S3-S14.

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