Square tube processing device

Abstract

The present invention discloses a square tube processing device, including a machine tool, a support mechanism, a first sliding member arranged on the machine tool and capable of sliding in a direction parallel to the axis center line of the square tube, a rotating member arranged on the first sliding member and capable of rotating around the axis center line of the square tube, a second sliding member arranged on the rotating member and capable of sliding in a direction close to or away from the square tube, a processing seat arranged on the second sliding member for processing the square tube to form an external thread, and the square tube is rotatable around its own axis center line and arranged on the support mechanism; the processing seat includes a connecting member arranged on the second sliding member, a rotating shaft arranged on the connecting member and capable of rotating around its own axis center line, a first motor arranged on the connecting member for driving the rotating shaft to rotate, and a milling cutter arranged at one end of the rotating shaft. In the square tube processing device of the present invention, the milling cutter mills out the external threads of the four corners of the square tube in four times, and the four external threads have high synchronization with each other; the milling cutter can mill out the external threads with a depth that meets the standard at one time, and the external threads have high precision.

Description

Technical Field

[0001] The invention relates to a square tube processing device. Background Art

[0002] The existing device for processing the external threads of square tubes uses four sets of cyclone milling cutters for processing. This processing device has the following disadvantages: the four sets of cyclone milling cutters are used to mill the external threads on the four corners of the square tube respectively, resulting in poor synchronization between the four external threads; since the position of the cyclone milling cutter from the center of the square tube is fixed, it is impossible to mill the external threads with the required depth at one time, and multiple cyclone milling cutters in one set are required to process in sequence to mill the external threads with the required depth. Multiple processing will result in low external thread accuracy. Summary of the invention

[0003] The object of the present invention is to provide a square tube processing device, which can mill four external threads at four corners of the square tube with high precision and high synchronization.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A square tube processing device comprises a machine tool, a support mechanism arranged on the machine tool, and a square tube is arranged on the support mechanism so as to be rotatable around its own axis; the device further comprises a first sliding member arranged on the machine tool and capable of sliding in a direction parallel to the axis of the square tube, a rotating member arranged on the first sliding member and capable of rotating around a direction perpendicular to the axis of the square tube, a second sliding member arranged on the rotating member and capable of sliding in a direction approaching or moving away from the square tube, and a processing seat arranged on the second sliding member for processing the square tube to form an external thread;

[0006] The processing seat includes a connecting member arranged on the second sliding member, a rotating shaft arranged on the connecting member and capable of rotating around its own axial centerline, a first motor arranged on the connecting member for driving the rotating shaft to rotate, and a milling cutter arranged at one end of the rotating shaft, wherein the milling cutter is used to process the square tube in a stationary state.

[0007] Preferably, the supporting mechanism includes a first supporting seat fixed on the machine tool for connecting one end of the square tube, and a second supporting seat slidable along the axial direction of the square tube and provided on the machine tool for connecting the other end of the square tube. The device also includes a second motor provided on the first supporting seat for driving the square tube to rotate.

[0008] More preferably, the support mechanism also includes a first connecting shaft which can rotate around its own axial centerline and is arranged on the first support seat, and a second connecting shaft which can rotate around its own axial centerline and is arranged on the second support seat, the first connecting shaft and the second connecting shaft are used to cooperate and fix the two ends of the square tube, the first connecting shaft, the second connecting shaft and the square tube extend coaxially, and the maximum diameter of the square tube is larger than the diameter of the first connecting shaft and the second connecting shaft.

[0009] More preferably, the supporting mechanism further comprises a third supporting seat disposed on the machine tool and located between the first supporting seat and the second supporting seat for supporting the square tube.

[0010] Preferably, the processing seat also includes a fixed tube fixedly connected to the connecting member, and two limit members arranged on the fixed tube for respectively contacting the two sides of the square tube to prevent the square tube from rotating; the rotating shaft can rotate around its own axis and pass through the fixed tube.

[0011] More preferably, the fixing tube includes a conical surface disposed at one end thereof for abutting against the square tube.

[0012] Preferably, the device also includes a guide rail arranged on the machine tool, a screw arranged on the machine tool and capable of rotating around its own axial line, a third motor arranged on the machine tool for driving the screw to rotate, and a nut arranged on the screw, and the first sliding member is fixedly connected to the nut and is slidably arranged on the guide rail.

[0013] More preferably, the guide rail and the screw are parallel to the axial centerline direction of the square tube.

[0014] Preferably, the axis lines of the square tube and the rotating shaft are both located in a horizontal plane, and the rotating member is rotatable in a vertical direction and is disposed on the first sliding member.

[0015] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the present invention is a square tube processing device, which processes the square tube by a milling cutter, and the distance between the initial position of the milling cutter and the center of the square tube is adjustable. The milling cutter mills out the external threads at the four corners of the square tube in four times, and the four external threads are highly synchronized with each other; the milling cutter can mill out external threads with a depth that meets the standard at one time, and the external threads have high precision; the angle between the milling cutter and the square tube is adjustable, and the milling cutter can mill out external threads with different thread lead angles as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the device of the present invention;

[0017] Attached Figure 2 For attachment Figure 1 A top view of

[0018] Attached Figure 3 For attachment Figure 1 A front view of

[0019] Attached Figure 4 It is a schematic diagram of the structure of the fixed tube and the rotating shaft.

[0020] Among them: 1. machine tool; 2. square tube; 3. first sliding member; 4. rotating member; 5. connecting member; 6. rotating shaft; 7. first motor; 8. milling cutter; 9. first supporting seat; 10. second supporting seat; 11. second motor; 12. first connecting shaft; 13. second connecting shaft; 14. third supporting seat; 15. fixed tube; 16. limiting member; 17. conical surface; 18. guide rail; 19. screw; 20. third motor; 21. second sliding member. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0022] See also Figure 1-4 As shown, the above-mentioned square tube processing device is used to mill four external threads on the four corners of the square tube 2 along its length direction. The formed externally threaded square tube 2 is generally used in the construction industry.

[0023] The above-mentioned square tube processing device includes a machine tool 1, a support mechanism disposed on the machine tool 1, and a square tube 2 is disposed on the support mechanism so as to be rotatable around its own axis, or the square tube 2 can be disposed on the support mechanism statically. The device also includes a first sliding member 3 disposed on the machine tool 1 and capable of sliding in a direction parallel to the axis of the square tube 2, a rotating member 4 disposed on the first sliding member 3 and capable of rotating around a direction perpendicular to the axis of the square tube 2, a second sliding member 21 disposed on the rotating member 4 and capable of sliding in a direction close to or away from the square tube 2, and a processing seat disposed on the second sliding member 21 for processing the square tube 2 to form an external thread. In this embodiment, when the processing seat is processing, the square tube 2 is in a static state. The square tube 2 is rotated in the left and right directions (see Figure 2 As shown, Figure 2 The left in the figure is the left here), and its axis is located in the horizontal plane. The sliding direction of the first sliding member 3 is parallel to the length extension direction of the square tube 2, and the rotating member 4 rotates around the vertical direction. Through this setting, the angle between the processing seat and the square tube 2 can be adjusted, and the processing seat can mill external threads with different thread lead angles according to processing needs.

[0024] The processing seat comprises a connecting member 5 fixedly mounted on the second sliding member 21, a rotating shaft 6 mounted on the connecting member 5 and rotatable around its own axis, a first motor 7 mounted on the connecting member 5 and used to drive the rotating shaft 6 to rotate, and a first motor 7 mounted on the right end of the rotating shaft 6 (see Figure 2 As shown, Figure 2The output end of the first motor 7 is connected to the left end of the rotating shaft 6. In the present embodiment, the axis of the rotating shaft 6 extends in the left-right direction and is located in the horizontal plane. The axis of the rotating shaft 6 and the axis of the square tube 2 are located at the same height, and the angle between the rotating shaft 6 and the square tube 2 is adjustable by rotating the rotating member 4. Since the milling cutter 8 extends coaxially with the rotating shaft 6, the angle between the milling cutter 8 and the square tube 2 is adjustable. In the present embodiment, the milling cutter 8 is a three-edged saw blade. The sliding direction of the second sliding member 21 is also located in the horizontal plane. When the rotating shaft 6 is parallel to the square tube 2, the sliding direction of the second sliding member 21 is perpendicular to the length extension direction of the square tube 2.

[0025] In this embodiment, the support mechanism includes a first support seat 9 fixed on the machine tool 1 for connecting the left end of the square tube 2, a second support seat 10 slidable along the axis of the square tube 2 and provided on the machine tool 1 for connecting the right end of the square tube 2, and the support mechanism also includes a second motor 11 provided on the first support seat 9 for driving the square tube 2 to rotate. When the output end of the second motor 11 stops rotating, the square tube 2 is in a stationary state. The support mechanism also includes a third support seat 14 provided on the machine tool 1 and located between the first support seat 9 and the second support seat 10 for supporting the square tube 2. In this embodiment, the third support seat 14 is located at the middle position of the first support seat 9 and the second support seat 10. Since the square tube 2 is relatively long, by setting the third support seat 14 to surround and contact the square tube 2 to limit it, it can be avoided that when the square tube 2 is processed in a stationary state, the square tube 2 body slightly jumps and affects the processing quality. Specifically, the contact surface between the third support seat 14 and the square tube 2 is in an arc shape, and the arc makes way at the contact position between the square tube 2 and the milling cutter 8 to prevent interference with the processing of the milling cutter 8.

[0026] The above-mentioned support mechanism also includes a first connecting shaft 12 which can rotate around its own axis and is arranged on the first support seat 9, and a second connecting shaft 13 which can rotate around its own axis and is arranged on the second support seat 10. The first connecting shaft 12 and the second connecting shaft 13 are used to cooperate and fix the left and right ends of the square tube 2. The first connecting shaft 12, the second connecting shaft 13 and the square tube 2 extend coaxially, and the maximum diameter of the square tube 2 is greater than the diameter of the first connecting shaft 12 and the second connecting shaft 13. Through this setting, when the processing seat is in the initial position (that is, the milling cutter 8 is aligned with the second connecting shaft 13), the distance between the axis of the milling cutter 8 and the second connecting shaft 13 is directly adjusted. Since the second connecting shaft 13 extends coaxially with the square tube 2, this distance can determine the depth of the external thread milled by the milling cutter 8 when processing the square tube 2. Since the diameter of the second connecting shaft 13 is smaller than the maximum diameter of the square tube 2, and the radius difference between the two is greater than the standard depth of the external thread, when the position of the milling cutter 8 is adjusted at the initial position, the milling cutter 8 will not contact the second connecting shaft 13.

[0027] The processing seat also includes a fixed tube 15 fixedly connected to the connecting member 5, and two stoppers 16 arranged on the fixed tube 15 for respectively contacting the two sides of the square tube 2 to prevent the square tube 2 from rotating; the rotating shaft 6 is arranged in the fixed tube 15 so as to rotate around its own axis. The fixed tube 15 includes a tapered surface 17 arranged at its right end for contacting the square tube 2. When processing the square tube 2, by setting the two stoppers 16 to contact the upper and lower sides of the square tube 2 respectively, and by setting the tapered surface 17 to press against the part of the square tube 2 located between the two stoppers 16, the square tube 2 can be effectively prevented from rotating during processing, thereby further improving the processing efficiency and processing quality.

[0028] The square tube processing device further comprises a guide rail 18 provided on the machine tool 1, a screw 19 provided on the machine tool 1 and rotatable around its own axis, a third motor 20 provided on the machine tool 1 and used to drive the screw 19 to rotate, and a nut provided on the screw 19. The first sliding member 3 is fixedly connected to the nut, and the first sliding member 3 is slidably provided on the guide rail 18. In this embodiment, the guide rail 18 and the screw 19 are parallel to the axis direction of the square tube 2. The third motor 20 drives the screw 19 to rotate, and the nut moves on the screw 19 along its length extension direction, driving the first sliding member 3 to move along the length extension direction parallel to the square tube 2, and the guide rail 18 guides the sliding of the first sliding member 3.

[0029] The working process of this embodiment is described in detail below:

[0030] First, adjust the first sliding member 3 to move the processing seat to the initial position, align the milling cutter 8 with the second connecting shaft 13, and adjust the rotating member 4 according to the processing requirements so that the angle between the rotating shaft 6 and the square tube 2 meets the processing requirements; adjust the second sliding member 21 according to the processing requirements so that the distance between the milling cutter 8 and the second connecting shaft 13 meets the processing requirements;

[0031] Next, the second motor 11 drives the square tube 2 to rotate so that one corner of the square tube 2 faces the milling cutter 8; the first motor 7 and the third motor 20 are started, and the milling cutter 8 rotates around its own axis while moving from right to left to process the square tube 2 until an external thread is milled on one corner of the square tube 2 along the length direction of the square tube 2;

[0032] Repeat the above steps until external threads are milled on the four corners of the square tube 2.

[0033] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A square tube processing device, characterized in that: The device comprises a machine tool, a support mechanism disposed on the machine tool, and a square tube that can rotate around its own axis is disposed on the support mechanism; the device also comprises a first sliding member disposed on the machine tool that can slide in a direction parallel to the axis of the square tube, a rotating member disposed on the first sliding member that can rotate around a direction perpendicular to the axis of the square tube, a second sliding member disposed on the rotating member that can slide in a direction close to or away from the square tube, and a processing seat disposed on the second sliding member for processing the square tube to form an external thread; The processing seat comprises a connecting member arranged on the second sliding member, a rotating shaft arranged on the connecting member and capable of rotating around its own axis, a first motor arranged on the connecting member and used to drive the rotating shaft to rotate, and a milling cutter arranged at one end of the rotating shaft, wherein the milling cutter is used to process the square tube in a stationary state; the processing seat is used to process the four corners of the square tube one by one to mill out external threads; The support mechanism includes a first support seat fixedly mounted on the machine tool for connecting one end of the square tube, and a second support seat slidable along the axis of the square tube and mounted on the machine tool for connecting the other end of the square tube. The device also includes a second motor mounted on the first support seat for driving the square tube to rotate. The support mechanism further comprises a first connecting shaft rotatable around its own axis and arranged on the first support seat, and a second connecting shaft rotatable around its own axis and arranged on the second support seat, the first connecting shaft and the second connecting shaft are used to cooperate and fix the two ends of the square tube, the first connecting shaft, the second connecting shaft and the square tube extend coaxially, and the maximum diameter of the square tube is greater than the diameters of the first connecting shaft and the second connecting shaft; In the square tube and the second connecting shaft, the difference in radius between the two is greater than the standard depth of the external thread; The processing seat also includes a fixed tube fixedly connected to the connecting member, and two stoppers arranged on the fixed tube for respectively contacting two sides of the square tube to prevent the square tube from rotating. The rotating shaft can rotate around its own axis and is inserted into the fixed tube. The fixing tube comprises a conical surface arranged at one end thereof for contacting the square tube.

2. A square tube processing device according to claim 1, characterized in that: The supporting mechanism further comprises a third supporting seat disposed on the machine tool and located between the first supporting seat and the second supporting seat for supporting the square tube.

3. A square tube processing device according to claim 1, characterized in that: The device also includes a guide rail arranged on the machine tool, a screw arranged on the machine tool and rotatable around its own axial direction, a third motor arranged on the machine tool for driving the screw to rotate, and a nut arranged on the screw. The first sliding member is fixedly connected to the nut and is slidably arranged on the guide rail.

4. A square tube processing device according to claim 3, characterized in that: The guide rail and the screw rod are parallel to the axial center line direction of the square tube.

5. A square tube processing device according to claim 1, characterized in that: The axis lines of the square tube and the rotating shaft are both located in a horizontal plane, and the rotating member is arranged on the first sliding member so as to be rotatable in a vertical direction.

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