Metal pipe drilling and forming equipment

Abstract

The present invention relates to the technical field of pipe hole opening, and specifically to a metal pipe drilling and forming equipment, comprising a base, a drilling mechanism arranged on the top of the base, and a clamping mechanism arranged on the top of the base, wherein the clamping mechanism comprises a first clamp fixedly arranged on the base, and a second clamp slidably arranged on the base, the clamping surfaces of the first clamp and the second clamp are provided with V-shaped grooves, the base is also provided with a driving mechanism for guiding the second clamp to slide toward the first clamp, and a belt body that can be elastically attached to the outer circumferential surface of the pipe is provided at the V-shaped groove. The present invention arranges a belt body at the V-shaped grooves of the first clamp and the second clamp, so that when the first clamp and the second clamp clamp the pipe, the belt body can be elastically attached to the outer circumferential surface of the pipe to form surface contact, and under the action of the line contact of the V-shaped groove, pipes of different diameters can be fixed on the base, thereby preventing the pipe from rolling during drilling, thereby improving the accuracy of drilling.

Description

Technical Field

[0001] The invention relates to the technical field of pipe hole opening, in particular to a metal pipe drilling and forming device. Background Art

[0002] Holes need to be drilled on round tube accessories, and a clamping device is needed to clamp the workpiece during the drilling process. The existing method is to use a quick chuck for clamping. This clamping method has a point contact position, and the clamping is unstable, which makes the round tube easily deviate during the drilling, and cannot meet the use requirements.

[0003] When existing mechanical processing is used to produce and process metal pipes, it is necessary to quickly transport the metal pipes. At the same time, most metal pipes need to be punched after processing to facilitate the subsequent installation and connection of the metal pipes. However, when existing metal pipe clamps are used to position and clamp metal pipes, they are generally line contact clamping or point contact clamping, and their stability is insufficient. They cannot stabilize the metal pipes when drilling, resulting in low drilling accuracy.

[0004] Chinese patent CN110919046B relates to an angle-adjustable hole forming device for aluminum tube processing, comprising a unloading manipulator, a loading assembly, a pushing assembly and an adjustable drilling assembly, wherein the adjustable drilling assembly is arranged at one end of the pushing assembly in the length direction, the pushing assembly comprises a material trough, a long-axis cylinder and a pushing block, the output port of the loading assembly is connected to the material trough, the pushing block is slidingly arranged in the material trough, the long-axis cylinder is arranged at one end of the material trough away from the adjustable drilling assembly, the output end of the long-axis cylinder is connected to the pushing block, a pneumatic suction mechanism is arranged on the pushing block, and the adjustable drilling assembly comprises a column, a clamping mechanism, an angle adjustment mechanism and a drilling mechanism.

[0005] The forming equipment clamps the pipe by means of a first V-shaped clamp and a second V-shaped clamp. This clamping method is a line contact clamping method. The pipe has insufficient stability when a hole is opened and the pipe is prone to rotate relative to the first V-shaped clamp and the second V-shaped clamp. Summary of the invention

[0006] In view of the above problems, a metal tube drilling and forming device is provided, which solves the problem that the existing point contact clamping and line contact clamping cannot stably clamp tubes of different diameters by using a first clamp and a second clamp.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0008] A metal tube drilling and forming device comprises a base, a drilling mechanism arranged on the top of the base, and a clamping mechanism arranged on the top of the base, wherein the clamping mechanism comprises a first clamp fixedly arranged on the base, and a second clamp slidably arranged on the base, the clamping surfaces of the first clamp and the second clamp are provided with V-shaped grooves, the base is also provided with a driving mechanism for guiding the second clamp to slide toward the first clamp, and a belt body that can be elastically attached to the outer circumferential surface of the pipe is provided at the V-shaped groove.

[0009] Preferably, the first clamp comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged in parallel, a V-shaped notch is arranged on one side of the first clamping plate and the second clamping plate, and the belt body is arranged between the first clamping plate and the second clamping plate.

[0010] Preferably, the belt body is an elastic belt, and both ends of the elastic belt are fixedly connected to the outer openings of the V-shaped notch.

[0011] Preferably, a first guide roller and a second guide roller are provided between the first clamping plate and the second clamping plate at the outer opening of the V-shaped notch, and the belt body is an annular elastic belt, which is sleeved on the first guide roller and the second guide roller.

[0012] Preferably, the first clamping plate and the second clamping plate are provided with a first guide roller and a second guide roller located at the outer opening of the V-shaped groove, and a third guide roller and a fourth guide roller are also provided between the first clamping plate and the second clamping plate. The belt body is a flexible belt, and both ends of the flexible belt are provided with tension springs extending along its length direction. The flexible belt and the tension spring are mounted on the first guide roller, the second guide roller, the third guide roller and the fourth guide roller.

[0013] Preferably, a locking mechanism capable of locking the first guide roller and the second guide roller is further provided between the first clamping plate and the second clamping plate, and the locking mechanism is drivingly connected to the inner side of the belt body.

[0014] Preferably, the locking mechanism includes a rotating shaft rotatably arranged between the first clamping plate and the second clamping plate, and a fixed shaft arranged parallel to the rotating shaft, the rotating shaft is provided with a first abutment plate and a second abutment plate extending along its radial direction, one side of the second abutment plate is fixedly connected to the fixed shaft through a spring, the second abutment plate elastically abuts against the inner side of the belt body under the action of the spring, and the first abutment plate abuts against the circumferential surface of the first guide roller.

[0015] Preferably, the circumferential surface of the first guide roller is uniformly provided with tooth grooves extending along its axial direction, and the first abutment plate is provided with a rack that can mesh with the tooth grooves.

[0016] Preferably, a clamping block is provided at the end of the belt body, a bolt is provided on the outer side of the clamping block, and both ends of the tension spring are hung on the bolt in a ring shape.

[0017] Preferably, a connecting roller is provided at the outer end of the fourth guide roller of the first clamp, a first bevel gear is provided on the connecting roller, an active roller perpendicular to the connecting roller is also provided on the base, a second bevel gear is provided at one end of the active roller, and the first bevel gear and the second bevel gear are meshed with each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a belt body at the V-shaped notch of the first clamp and the second clamp, so that when the first clamp and the second clamp clamp the pipe, the belt body can be elastically attached to the outer circumferential surface of the pipe to form surface contact. Under the action of the line contact of the V-shaped notch, pipes of different diameters can be fixed on the base, thereby preventing the pipe from rolling during drilling, thereby improving the drilling accuracy;

[0020] 2. The present invention allows the first clamp and the second clamp to slightly loosen the pipe while the belt body still clamps the pipe, and guides the belt body to slide to drive the pipe to rotate between the first clamp and the second clamp, thereby rotating the pipe body and allowing the drilling mechanism to drill holes at different positions of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of a metal tube drilling and forming device;

[0022] Figure 2 It is a stereoscopic diagram of a clamping mechanism in a metal tube drilling and forming device;

[0023] Figure 3 It is a three-dimensional exploded view of a clamping mechanism in a metal tube drilling and forming device;

[0024] Figure 4 It is a three-dimensional diagram of a first embodiment of a metal tube drilling and forming device in a non-working state;

[0025] Figure 5 It is a three-dimensional diagram of a first embodiment of a metal tube drilling and forming device in a working state;

[0026] Figure 6 It is a three-dimensional diagram of a second embodiment of a metal tube drilling and forming device in a non-working state;

[0027] Figure 7 It is a three-dimensional diagram of the second embodiment of the metal tube drilling and forming equipment in the working state;

[0028] Figure 8is a three-dimensional diagram of a third embodiment of a metal tube drilling and forming device in a non-working state;

[0029] Fig. 9 The third embodiment of the metal tube drilling and forming device is a three-dimensional diagram in working state; the numbers in the figure are:

[0030] 1- base;

[0031] 2- Drilling mechanism;

[0032] 3- first fixture;

[0033] 31- first splint;

[0034] 32- second splint;

[0035] 4- Second clamp;

[0036] 5- driving mechanism;

[0037] 51-slide cylinder;

[0038] 52-mounting plate;

[0039] 6- belt body;

[0040] 61-clamp block;

[0041] 63-bolt;

[0042] 71- first guide roller;

[0043] 72- second guide roller;

[0044] 73- third guide roller;

[0045] 74- fourth guide roller;

[0046] 75-tension spring;

[0047] 81-rotation axis;

[0048] 811- first abutment plate;

[0049] 812 - second abutment plate;

[0050] 82-fixed shaft;

[0051] 83-spring;

[0052] 84-limiting axis;

[0053] 91-active roller;

[0054] 92-first bevel gear;

[0055] 93-second bevel gear;

[0056] 94-Connection roller. DETAILED DESCRIPTION

[0057] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0058] like Figure 1 As shown, the present invention provides:

[0059] A metal tube drilling and forming device comprises a base 1, a drilling mechanism 2 arranged on the top of the base 1, and a clamping mechanism arranged on the top of the base 1, wherein the clamping mechanism comprises a first clamp 3 fixedly arranged on the base 1, and a second clamp 4 slidably arranged on the base 1, the clamping surfaces of the first clamp 3 and the second clamp 4 are provided with V-shaped notches, the base 1 is also provided with a driving mechanism 5 for guiding the second clamp 4 to slide toward the first clamp 3, and a belt 6 which can be elastically attached to the outer circumferential surface of the pipe is provided at the V-shaped notch.

[0060] Point contact clamping means that the contact between the clamp and the outer circumference of the pipe is point contact, while line contact clamping means that the contact between the clamp and the outer circumference of the pipe is line contact. Both point contact and line contact cannot stably clamp and fix the pipe, which will cause the pipe to rotate relative to the clamp during drilling, resulting in low hole opening accuracy of the pipe.

[0061] The first clamp 3 and the second clamp 4 are arranged alternately, the first clamp 3 is fixedly arranged on the base 1, and the second clamp 4 is slidably arranged on the base 1. When the driving mechanism 5 is started, the second clamp 4 can move toward the first clamp 3 to reduce the distance between the first clamp 3 and the second clamp 4.

[0062] When the second clamp 4 approaches the first clamp 3, the clamping surfaces of the first clamp 3 and the second clamp 4 approach each other, that is, the V-shaped notch on the first clamp 3 and the V-shaped notch on the second clamp 4 approach each other, the pipe is pre-placed between the clamping surfaces of the first clamp 3 and the second clamp 4, and the driving mechanism 5 is started so that the pipe can be clamped by the V-shaped notches approaching each other, and a line contact is formed between the inclined surface of the V-shaped notch and the outer circumferential surface of the pipe.

[0063] When the V-shaped notches are staggered and close to each other, since a belt body 6 is provided at the V-shaped notches, the belt body 6 can be elastically attached to the outer circumferential surface of the pipe, so that surface contact is formed between the belt body 6 and the pipe. Under the action of line contact and surface contact, the pipe can be stably fixed on the base 1.

[0064] The forming equipment also includes a lifting mechanism arranged at the top of the base 1, and the drilling mechanism 2 is arranged at the working end of the lifting mechanism. When the lifting mechanism is started, the drilling mechanism 2 can be lifted and lowered in the vertical direction on the top of the base 1. Then, when the drilling mechanism 2 is started, the working end of the drilling mechanism 2 rotates to open a hole in the fixed pipe by feeding in the vertical direction.

[0065] The driving mechanism 5 includes a slide cylinder 51 horizontally arranged on the base 1, a mounting plate 52 is arranged at the working end of the slide cylinder 51, the second clamp 4 is arranged on the mounting plate 52, a guide rail slidingly matched with the base 1 is arranged at the bottom end of the mounting plate 52, and the first clamp 3 is fixedly arranged on the base 1.

[0066] The drilling mechanism 2 includes a drill shaft and a motor for guiding the drill shaft to rotate. The drill shaft can be driven to rotate by starting the motor.

[0067] In this embodiment, a belt body 6 is arranged at the V-shaped grooves of the first clamp 3 and the second clamp 4, so that when the first clamp 3 and the second clamp 4 clamp the pipe, the belt body 6 can be elastically attached to the outer circumferential surface of the pipe to form surface contact. Under the action of the line contact of the V-shaped groove, pipes of different diameters can be fixed on the base 1, thereby preventing the pipe from rolling during drilling, thereby improving the drilling accuracy.

[0068] like Figure 3 As shown, the first clamp 3 includes a first clamp plate 31 and a second clamp plate 32 , the first clamp plate 31 and the second clamp plate 32 are arranged in parallel, a V-shaped notch is arranged on one side of the first clamp plate 31 and the second clamp plate 32 , and the belt body 6 is arranged between the first clamp plate 31 and the second clamp plate 32 .

[0069] The first clamp 3 and the second clamp 4 have the same structure.

[0070] The first clamp 31 and the second clamp 32 are provided with a space in parallel, and a V-shaped groove is provided on the same side of the first clamp 31 and the second clamp 32, and the belt body 6 is arranged between the first clamp 31 and the second clamp 32. When the second clamp 4 moves toward the first clamp 3, the pipe is clamped at the V-shaped groove of the first clamp 31 and the second clamp 32, so that the inclined surface of the V-shaped groove on the first clamp 31 and the second clamp 32 can form a line contact with the pipe, and the belt body 6 arranged between the first clamp 31 and the second clamp 32 can elastically abut against the outer circumferential surface of the pipe, so that the belt body 6 can form a surface contact with the pipe, so that the pipe can be stably set on the base 1.

[0071] like Figure 4 and Figure 5 As shown, the belt body 6 is an elastic belt, and both ends of the elastic belt are fixedly connected to the outer openings of the V-shaped notch.

[0072] As the first embodiment of the present application, the belt body 6 is an elastic belt, and the two ends of the elastic belt are respectively connected to the inclined surfaces of the V-shaped groove, so that when the V-shaped grooves on the first clamp 3 and the second clamp 4 clamp the pipe, the elastic belt can be elastically deformed to elastically adhere to the outer circumferential surface of the pipe, so that the deformed elastic belt can form a surface contact with the pipe, so that the pipe can be stabilized on the base 1, thereby preventing the pipe from rolling during drilling.

[0073] like Figure 6 and Figure 7 As shown, a first guide roller 71 and a second guide roller 72 are provided between the first clamping plate 31 and the second clamping plate 32 at the outer opening of the V-shaped groove, and the belt body 6 is an annular elastic belt, which is sleeved on the first guide roller 71 and the second guide roller 72.

[0074] As a second embodiment of the present application, a first guide roller 71 and a second guide roller 72 are arranged between the first clamping plate 31 and the second clamping plate 32, and an annular elastic belt is sleeved on the first guide roller 71 and the second guide roller 72, so that when the V-shaped groove forms a linear contact with the pipe, the annular elastic belt can elastically abut against the outer circumferential surface of the pipe, and at the same time, the annular elastic belt can be deformed so that the left and right sections abut against each other, thereby preventing the annular elastic belt from sliding on the first guide roller 71 and the second guide roller 72.

[0075] When the pipe on the base 1 needs to be rotated, the distance between the first clamp 3 and the second clamp 4 is increased, so that the annular elastic band on the V-shaped grooves of the first clamp 3 and the second clamp 4 is still deformed and abuts against the circumferential surface of the pipe. At the same time, the left and right sections of the annular elastic band are separated from each other so that the annular elastic band can rotate on the first guide roller 71 and the second guide roller 72. After the pipe adjusts the rotation angle, the second clamp 4 is driven to move toward the first clamp 3, so that the first clamp 3 and the second clamp 4 re-clamp the pipe.

[0076] like Figure 8 and Fig. 9 As shown, the first clamping plate 31 and the second clamping plate 32 are provided with a first guide roller 71 and a second guide roller 72 located at the outer opening of the V-shaped groove, and a third guide roller 73 and a fourth guide roller 74 are also provided between the first clamping plate 31 and the second clamping plate 32. The belt body 6 is a flexible belt, and both ends of the flexible belt are provided with tension springs 75 extending along its length direction. The flexible belt and the tension spring 75 are mounted on the first guide roller 71, the second guide roller 72, the third guide roller 73 and the fourth guide roller 74.

[0077] As a third embodiment of the present application, a first guide roller 71, a second guide roller 72, a third guide roller 73 and a fourth guide roller 74 are arranged between the first clamping plate 31 and the second clamping plate 32. Since the belt body 6 is a flexible belt, the flexible belt is deformed by force and cannot return to its original shape after the force is lost, the two ends of the flexible belt are connected by a tension spring 75, so that the annular flexible belt and the tension spring 75 can be sleeved on the first guide roller 71, the second guide roller 72, the third guide roller 73 and the fourth guide roller 74. At the same time, the flexible belt is located between the first guide roller 71 and the second guide roller 72. When the V-shaped grooves on the first clamping plate 31 and the second clamping plate 32 clamp the pipe, the flexible belt elastically abuts against the circumferential surface of the pipe under the tension of the tension spring 75.

[0078] like Figure 8 and Fig. 9 As shown, a locking mechanism capable of locking the first guide roller 71 and the second guide roller 72 is further provided between the first clamping plate 31 and the second clamping plate 32 , and the locking mechanism is drivingly connected to the inner side of the belt body 6 .

[0079] Because the flexible belt and the tension spring 75 are sleeved on the first guide roller 71, the second guide roller 72, the third guide roller 73 and the fourth guide roller 74, when the belt body 6 contacts the surface of the pipe, the belt body 6 is deformed and the first guide roller 71 and the second guide roller 72 can be locked by the locking mechanism arranged between the first clamping plate 31 and the second clamping plate 32 to prevent the first guide roller 71 and the second guide roller 72 from rotating between the first clamping plate 31 and the second clamping plate 32, thereby causing the belt body 6 to slide by itself when contacting the surface of the pipe.

[0080] like Figure 8 and Fig. 9 As shown, the locking mechanism includes a rotating shaft 81 rotatably arranged between the first clamping plate 31 and the second clamping plate 32, and a fixed shaft 82 arranged parallel to the rotating shaft 81, and the rotating shaft 81 is provided with a first abutment plate 811 and a second abutment plate 812 extending along its radial direction, one side of the second abutment plate 812 is fixedly connected to the fixed shaft 82 through a spring 83, and the second abutment plate 812 elastically abuts against the inner side of the belt body 6 under the action of the spring 83, and the first abutment plate 811 abuts against the circumferential surface of the first guide roller 71.

[0081] By arranging a rotating shaft 81 and a fixed shaft 82 between the first clamping plate 31 and the second clamping plate 32, and arranging a first abutting plate 811 and a second abutting plate 812 extending radially thereof on the rotating shaft 81, the second abutting plate 812 abuts against the inner side of the belt body 6 under the elastic force of the spring 83. When the belt body 6 is not deformed but attached to the outer circumferential surface of the pipe, the first abutting plate 811 is away from the first guide roller 71 or the second guide roller 72, so that the first guide roller 71 and the second guide roller 72 can rotate between the first clamping plate 31 and the second clamping plate 32, thereby enabling the belt body 6 to be moved along the first guide roller 71 or the second guide roller 72. The roller 71 and the second guide roller 72 slide on the first clamp 3 and the second clamp 4, thereby driving the pipe to rotate between the first clamp 3 and the second clamp 4; when the belt body 6 is deformed and elastically adheres to the outer circumferential surface of the pipe, the second abutment plate 812 abuts against the inner side of the belt body 6 and drives the rotating shaft 81 to rotate, thereby making the first abutment plate 811 abut against the circumferential surfaces of the first guide roller 71 and the second guide roller 72 and unable to rotate, thereby locking the first guide roller 71 and the second guide roller 72 to prevent the first clamp 3 and the second clamp 4 from sliding between the pipe and the belt body 6 when clamping the pipe.

[0082] A limiting shaft 84 is further provided between the first clamping plate 31 and the second clamping plate 32. When the belt body 6 is not deformed, the first abutting plate 811 abuts against the limiting shaft 84.

[0083] like Figure 8 and Fig. 9 As shown, the circumferential surface of the first guide roller 71 is uniformly provided with tooth grooves extending along its axial direction, and the first abutment plate 811 is provided with a rack that can mesh with the tooth grooves.

[0084] The first guide roller 71 and the second guide roller 72 have the same structure. A tooth groove extending along the axial direction of the first guide roller 71 is provided, and a rack is provided on the first abutment plate 811. When the first abutment plate 811 abuts against the first guide roller 71, the rack can engage with the tooth groove to prevent the first guide roller 71 from being unable to rotate in the first clamp 3 and the second clamp 4.

[0085] like Figure 8 and Fig. 9 As shown, a clamping block 61 is disposed at the end of the belt body 6 , a bolt 63 is disposed on the outer side of the clamping block 61 , and both ends of the tension spring 75 are hung on the bolt 63 in a ring shape.

[0086] In order to facilitate the adjustment of the abutment force between the belt body 6 and the outer circumferential surface, a clamping block 61 is provided at the end of the belt body 6, and a pin 63 is provided on the outside of the clamping block 61. By hanging the rings at both ends of the tension spring 75 on the pin 63, it is convenient to replace the tension spring 75 with different elastic coefficients, so that the belt body 6 can abut against the outer circumferential surface of the pipe with appropriate elastic force.

[0087] like Figure 2 As shown, a connecting roller 94 is provided at the outer end of the fourth guide roller 74 of the first clamp 3, and a first bevel gear 92 is provided on the connecting roller 94. An active roller 91 perpendicular to the connecting roller 94 is also provided on the base 1, and a second bevel gear 93 is provided at one end of the active roller 91. The first bevel gear 92 and the second bevel gear 93 are meshed with each other.

[0088] In order to allow the first clamp 3 and the second clamp 4 to loosen the pipe and the belt body 6 to elastically clamp the pipe, the active roller 91 is rotated to make the meshing first bevel gear 92 and the second bevel gear 93 rotate with each other, so that the connecting roller 94 can drive the fourth guide roller 74 of the first clamp 3, so that the belt body 6 mounted on the first guide roller 71, the second guide roller 72, the third guide roller 73 and the fourth guide roller 74 can drive the pipe to rotate, so that after the angle of the pipe is adjusted, the pipe can be clamped again by the first clamp 3 and the second clamp 4, so that the drilling mechanism 2 can accurately open a hole in the pipe.

[0089] In this embodiment, a belt body 6 is arranged at the V-shaped grooves of the first clamp 3 and the second clamp 4, so that when the first clamp 3 and the second clamp 4 clamp the pipe, the belt body 6 can be elastically attached to the outer circumferential surface of the pipe to form surface contact. Under the action of the line contact of the V-shaped groove, pipes of different diameters can be fixed on the base 1, thereby preventing the pipe from rolling during drilling, thereby improving the drilling accuracy.

[0090] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A metal tube drilling and forming device, comprising a base (1), a drilling mechanism (2) arranged on the top of the base (1), and a clamping mechanism arranged on the top of the base (1), the clamping mechanism comprising a first clamp (3) fixedly arranged on the base (1), and a second clamp (4) slidably arranged on the base (1), the clamping surfaces of the first clamp (3) and the second clamp (4) being provided with V-shaped notches, the base (1) being further provided with a driving mechanism (5) for guiding the second clamp (4) to slide toward the first clamp (3), characterized in that: The V-shaped notch is provided with a belt body (6) which can be elastically attached to the outer circumferential surface of the pipe. The first clamp (3) comprises a first clamp plate (31) and a second clamp plate (32). The first clamp plate (31) and the second clamp plate (32) are arranged in parallel. One side of the first clamp plate (31) and the second clamp plate (32) is provided with a V-shaped notch. The belt body (6) is arranged between the first clamp plate (31) and the second clamp plate (32). The first clamp plate (31) and the second clamp plate (32) are provided with a V-shaped notch. A first guide roller (71) and a second guide roller (72) are provided at the outer opening of the groove, a third guide roller (73) and a fourth guide roller (74) are also provided between the first clamping plate (31) and the second clamping plate (32), the belt body (6) is a flexible belt, and tension springs (75) extending along the length direction of the flexible belt are provided at both ends of the flexible belt, the flexible belt and the tension spring (75) are sleeved on the first guide roller (71), the second guide roller (72), the third guide roller (73) and the fourth guide roller (74), and a locking mechanism capable of locking the first guide roller (71) and the second guide roller (72) is also provided between the first clamping plate (31) and the second clamping plate (32), and the locking mechanism is transmission-connected to the inner side of the belt body (6).

2. A metal tube drilling and forming device according to claim 1, characterized in that: The belt body (6) is an elastic belt, and both ends of the elastic belt are fixedly connected to the outer openings of the V-shaped notch.

3. The metal tube drilling and forming equipment according to claim 1, characterized in that: A first guide roller (71) and a second guide roller (72) are provided between the first clamping plate (31) and the second clamping plate (32) and are located at the outer opening of the V-shaped notch. The belt body (6) is an annular elastic belt, and the annular elastic belt is sleeved on the first guide roller (71) and the second guide roller (72).

4. The metal tube drilling and forming equipment according to claim 1, characterized in that: The locking mechanism comprises a rotating shaft (81) rotatably arranged between a first clamping plate (31) and a second clamping plate (32), and a fixed shaft (82) arranged parallel to the rotating shaft (81); the rotating shaft (81) is provided with a first abutment plate (811) and a second abutment plate (812) extending along its radial direction; one side of the second abutment plate (812) is fixedly connected to the fixed shaft (82) via a spring (83); the second abutment plate (812) elastically abuts against the inner side of the belt body (6) under the action of the spring (83); and the first abutment plate (811) abuts against the circumferential surface of the first guide roller (71).

5. The metal tube drilling and forming equipment according to claim 4, characterized in that: The circumferential surface of the first guide roller (71) is uniformly provided with tooth grooves extending along its axial direction, and the first abutment plate (811) is provided with a rack that can mesh with the tooth grooves.

6. A metal tube drilling and forming device according to any one of claims 4-5, characterized in that: A clamping block (61) is provided at the end of the belt body (6), a bolt (63) is provided on the outer side of the clamping block (61), and both ends of the tension spring (75) are hung on the bolt (63) in a ring shape.

7. A metal tube drilling and forming device according to any one of claims 4-5, characterized in that: A connecting roller (94) is provided at the outer end of the fourth guide roller (74) of the first clamp (3), and a first bevel gear (92) is provided on the connecting roller (94). An active roller (91) perpendicular to the connecting roller (94) is also provided on the base (1), and a second bevel gear (93) is provided at one end of the active roller (91), and the first bevel gear (92) and the second bevel gear (93) are meshed with each other.

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