CN117583806A - Automatic welding system for deformed bar for tunnel - Google Patents

Abstract

The invention relates to the field of welding technology and discloses an automatic welding system for threaded steel bars for tunnels, which includes a base. Vertical blocks are provided on both sides of the surface of the base. Guide blocks are provided between the two vertical blocks. There is a rotating shaft connected to the rotation, and a number of clamping parts are provided on the rotating shaft at equal intervals along the axial direction of the rotating shaft. The clamping parts include a threaded section symmetrically arranged on the rotating shaft and a clamping block threadedly connected to the threaded section. The clamping block and the guide The blocks are slidingly connected, and the two clamping blocks of each clamping part move in opposite directions; the bottom of the clamping block is provided with a first inclined plane for resisting the threaded steel bars; the surface of the base is provided with a number of equidistant blocks along the length direction of the base. Grooves for placing threaded steel bars, each groove is located between two clamping blocks of each clamping part; it also includes a welding mechanism and a driving mechanism for driving the rotating shaft to rotate. This solution mainly solves the problem of cumbersome operation in the clamping and positioning method of multiple steel bars by existing equipment.

Description

An automatic welding system for threaded steel bars for tunnels

Technical field

The invention relates to the field of welding technology, and in particular to an automatic welding system for threaded steel bars for tunnels.

Background technique

Threaded steel bar is the common name for hot-rolled ribbed steel bar and is a very common steel bar. Rebar is a steel material that must be used for medium-sized and above building components. China imports a certain amount of rebar every year, and the amount of exported rebar is growing day by day. During the tunnel construction process, according to construction needs, the welding process of threaded steel bars will be involved, but for threaded steel bars The traditional positioning method is for workers to simply press and position the threaded steel bars. This positioning method can easily cause the welding position to shift, and requires the processing of defective products after welding errors, which increases the workload and affects work efficiency. .

In order to solve the above problems, Chinese patent publication number CN218426511U discloses a steel bar welding positioning device, which includes a bottom fixed installation plate and at least two clamping components fixedly installed on the upper surface of the bottom fixed installation plate, wherein the clamping The assembly includes a clamp positioning seat and a positioning sleeve that is buckled on the clamp positioning seat. The inside of the top of the clamp positioning seat is connected with a support spring and a bottom clamp in sequence from bottom to top. The insides of both sides of the clamp positioning seat are slidingly connected with The side clamps are arranged oppositely, and the side clamps on both sides are arranged correspondingly to the top of the bottom clamp. The positioning sleeve is U-shaped, and an installation space for installing the clamp positioning seat is provided in the middle of the positioning sleeve. The interior of the installation space is also used to slide and install two opposite side clamps. This patent can position simple steel bars and prevent the steel bars from shaking during the welding process, improving welding efficiency and thus work efficiency.

During the actual use of the above patent, it is necessary to manually adjust the position of the two side clamps to offset the steel bars, and then manually adjust the position of the bolts to position the side clamps, thereby using the two side clamps to clamp and position the steel bars; However, tunnel construction sites usually require welding of multiple steel bars. If the above-mentioned manual adjustment method is used to clamp and position each steel bar one by one, the operation is very cumbersome and the work efficiency is low.

Contents of the invention

The present invention is intended to provide an automatic welding system for threaded steel bars for tunnels to solve the problem of cumbersome operations in the clamping and positioning method of multiple steel bars in existing equipment.

In order to achieve the above object, the present invention adopts the following technical solution: an automatic welding system for threaded steel bars for tunnels, including a base. Vertical blocks are provided on both sides of the surface of the base, and guide blocks are provided between the two vertical blocks. A rotating shaft is rotatably connected between the blocks, and a number of clamping parts are provided on the rotating shaft at equal intervals along the axial direction of the rotating shaft. The clamping parts include a threaded section symmetrically arranged on the rotating shaft and a clamping block threadedly connected to the threaded section. The block is slidingly connected to the guide block, and the two clamping blocks of each clamping part move in opposite directions; the bottom of the clamping block is provided with a first slope for resisting the threaded steel bars; the surface of the base is equidistantly located along the length of the base. There are several grooves for placing threaded steel bars, each groove is located between two clamping blocks of each clamping part; it also includes a welding mechanism and a driving mechanism for driving the rotating shaft to rotate.

The principles and advantages of this program are:

1. In this plan, several threaded steel bars are placed in the groove one by one, and the threaded steel bars are supported through the groove; the rotating shaft is driven by the driving mechanism to rotate, so that the two clamping blocks of each clamping part are between the threaded section and the guide block. When the two clamping blocks are close to each other, both clamping blocks move in the direction of the threaded steel bars, so that the first inclined surfaces of the two clamping blocks offset the threaded steel bars, that is, the two clamping blocks are used to press the threaded steel bars. Carry out clamping and positioning; then use the welding mechanism to weld the threaded steel bars. Compared with the existing technology, this solution can drive multiple clamping parts to clamp and position multiple threaded steel bars at the same time through the rotation of the rotating shaft, that is, to achieve multiple clamping and positioning of the threaded steel bars. The automatic positioning of each threaded steel bar avoids manual adjustment to clamp and position each steel bar one by one, making the operation easier and improving work efficiency.

2. In this solution, since the first inclined surface offsets the threaded steel bars, the clamping block can also compress the threaded steel bars, thereby enhancing the positioning effect of the threaded steel bars.

Further, the base is provided with a number of limiting parts and a number of adjusting parts at equal intervals along the length direction of the base. The limiting parts include two bottom blocks and elastic blocks located on both sides of the groove. The two bottom blocks are respectively connected to each clamping part. The two clamping blocks at the bottom are fixedly connected at the bottom. Side grooves are vertically provided on the side walls of the bottom block, and lifting blocks are slidingly connected in the side grooves; the elastic blocks are arc-shaped, and the protruding directions of the two elastic blocks are arranged transversely opposite. One end of the elastic block is fixed to the base, and the other end of the elastic block is fixed to the lifting block; when the two clamping blocks of each clamping part approach or move away, the adjusting part simultaneously drives the two lifting blocks of each limiting part. Vertical movement.

Through the above arrangement, when the two clamping blocks are approaching, the two clamping blocks drive the two bottom blocks to move synchronously, that is, the two bottom blocks are also approaching; during the lateral movement of the bottom block, the bottom block drives the lifting block to move synchronously, and, The adjusting part simultaneously drives the two lifting blocks of each limiting part to move downward, that is, during the transverse movement of the bottom block, the lifting blocks move both transversely and vertically.

During the lateral and vertical movement of the lifting block, the lateral movement of the lifting block can drive the upper end of the elastic block close to the threaded steel bars, and then drive the elastic block close to the threaded steel bars; at the same time, the vertical movement of the lifting block can make the two ends of the elastic block close to each other. , thereby increasing the amplitude of the convex part of the elastic block, that is, making the convex part of the elastic block offset the threaded steel bar; the lifting block continues to move, so that the convex part of the elastic block is hindered by the threaded steel bar from deforming, that is, using two elastic The block clamps and positions the threaded steel bars, thereby enhancing the positioning effect of the threaded steel bars; and using the deformed elastic block to offset the threaded steel bars, the contact area between the two is increased, further enhancing the positioning effect of the threaded steel bars.

Further, the adjustment part includes a top groove symmetrically opened on the surface of the base, the groove is located between the two top grooves; an inclined groove is provided on the inner wall of the top groove, and the distance between the two inclined grooves gradually decreases from top to bottom; the inclined groove There is a slide block in the inner sliding connection, the slide block is fixedly connected with the lifting block, and the lifting block can move laterally and vertically in the top groove.

Through the above arrangement, when the two clamping blocks are approaching, the two clamping blocks drive the two bottom blocks to move synchronously, that is, the two bottom blocks are also approaching; during the lateral movement of the bottom block, the bottom block drives the lifting block to move synchronously, and the lifting block It drives the slider to move synchronously. Since the slider slides in the inclined groove, during the lateral movement of the slider, the slider will also drive the lifting block to move downward. That is, during the lateral movement of the bottom block, the lifting block moves both horizontally and vertically. towards movement.

Furthermore, a number of rubber blocks are arranged equidistantly on the surface of the elastic block, and anti-skid patterns are provided on both sides of the rubber block.

Through the above arrangement, when the elastic block and the threaded steel bar collide, the rubber block stretches into the gap of the threaded steel bar, which can limit the threaded steel bar and prevent the threaded steel bar from rotating, that is, the positioning effect of the threaded steel bar is strengthened; and , the rubber block is in contact with the inner walls on both sides of the gap, and the friction between the two is increased through the anti-slip pattern, thereby enhancing the limiting effect on the threaded steel bars.

Furthermore, a solid block is provided on the side wall of the lifting block, and an arc-shaped surface is provided at one end of the solid block away from the bottom block for abutting against the deformed elastic block.

Through the above settings, during the movement of the lifting block, the lifting block will also drive the solid block to move synchronously. When the clamping block is stopped, the elastic block will deform and offset the threaded steel bar. At the same time, the solid block will offset the deformed elastic block. That is, the arc surface offsets the deformed elastic block, which on the one hand can support the elastic block, and on the other hand can ensure the deformed shape of the elastic block, thereby ensuring the stability of the deformation of the elastic block and the threaded steel bar. That is, the stability of the clamping and positioning of the threaded steel bars by the two elastic blocks is improved.

Furthermore, a number of positioning parts are provided in the base at equal intervals along the length direction of the base. The positioning parts include a cavity opened inside the base and a guide groove opened on the side wall of the base. The cavity is connected to the two top grooves of each adjustment part. , a vertical groove is provided at the bottom of the chamber, a first wedge is slidably connected in the vertical groove, a first spring is provided between the first wedge and the chamber, and a positioning groove is provided on the side wall of the first wedge ; The top of the first wedge block is provided with a transverse block, and limit grooves are provided on both sides of the transverse block; the side wall of the lifting block is provided with a limit block, and the limit block slides with the limit groove, and the limit block can slide in the top groove , the chamber moves horizontally and vertically, and the transverse block is located on the movement trajectory of the pressure block; a second wedge for being squeezed by the first wedge is slidingly connected in the guide groove, and a third wedge is provided between the second wedge and the base. The second spring and the second wedge are in sliding fit with the positioning groove.

Through the above arrangement, the lifting block can move horizontally and vertically, that is, the movement direction of the lifting block is tilted. During the tilting movement of the lifting block, the lifting block drives the limit block to move synchronously. Since the limit block slides with the limit groove, , the limit block can slide in the limit groove, and at the same time, the limit block also drives the transverse block to move downward, and the transverse block drives the first wedge block to also move downward, and the first spring compresses; when the clamping block is stopped , the lifting block also stops, and then the first wedge block also stops.

During the downward movement of the first wedge, the first wedge squeezes the second wedge to move outward, and the second spring stretches; the first wedge continues to move downward, so that the second wedge is in contact with the side of the first wedge. The walls are against each other; the first wedge continues to move downward. When the clamping block is stopped, the lifting block is also stopped, and then the first wedge is also stopped. At this time, the second wedge is transversely opposite to the positioning groove, and the third wedge is laterally opposite to the positioning groove. The two wedges extend into the positioning groove under the action of the second spring, thereby positioning the first wedge and the transverse block, and then positioning the lifting block through the limiting block, that is, positioning the upper end of the elastic block. Positioning ensures the stability of the elastic block and the threaded steel bar, thereby improving the stability of the positioning of the threaded steel bar.

Further, it also includes a movable block, and the second wedge block is fixedly connected to the movable block.

Through the above arrangement, the movable block can drive several second wedge blocks to move simultaneously, so that all the second wedge blocks can be moved out of the positioning slot at the same time, so that several first wedge blocks can be in a movable state at the same time; the operation is more convenient.

Further, a second slope is provided on the side of the bottom of the clamping block away from the first slope; a number of auxiliary parts are provided on the base at equal intervals along the length direction of the base, and the auxiliary parts are located between two adjacent clamping parts; the auxiliary parts include A driven bevel gear that is coaxially connected to the rotating shaft, a one-way screw that is rotationally connected to the base, and a vertical rod that is fixed to the base. The one-way screw is fixed with a driving bevel gear that meshes with the driven gear; the thread on the one-way screw is A double wedge block is connected to the second inclined plane. The double wedge block is slidingly connected to the vertical rod. The second inclined plane is located on the movement track of the double wedge block.

Through the above settings, during the rotation of the rotating shaft, the rotating shaft drives the driving bevel gear to rotate, the driving bevel gear meshes with the driven bevel gear to drive the driven bevel gear to rotate, and the driven bevel gear drives the one-way screw to rotate, causing the double wedge block to move upward, that is, The double wedge block moves in the direction of the second inclined plane; the double wedge block continues to move. When the counter-rotating axis is stopped, the double wedge block also stops. At this time, the double wedge block simultaneously interacts with the two adjacent clamping parts. Two adjacent inclined wedge surfaces offset each other, thereby simultaneously ensuring the stability of the first inclined surfaces of the two adjacent clamping parts and the threaded steel bars, that is, improving the stability of positioning the threaded steel bars.

Description of drawings

Figure 1 is a front view of an embodiment of an automatic welding system for threaded steel bars for tunnels according to the present invention;

Figure 2 is an enlarged view of point A in Figure 1;

Figure 3 is a partial cross-sectional view from the front direction of Figure 1;

Figure 4 is an enlarged view of B in Figure 3;

Figure 5 is an enlarged view of C in Figure 4;

FIG. 6 is a partial cross-sectional view of the base in FIG. 1 from the left direction.

Detailed ways

The following is further detailed through specific implementation methods:

The reference numbers in the drawings of the description include: base 10, vertical block 11, guide block 12, rotating shaft 13, motor 14, threaded section 20, clamping block 21, first slope 22, groove 23, welding machine 30, One cylinder 31, third cylinder 32, support block 33, top base 34, first moving block 35, second moving block 36, third moving block 37, bottom block 40, elastic block 41, side groove 42, lifting block 43 , top groove 50, inclined groove 51, solid block 60, arc surface 61, chamber 70, guide groove 71, vertical groove 72, first wedge 73, first spring 74, positioning groove 75, transverse block 76, Limit groove 761, limit block 77, second wedge block 78, movable block 781, second spring 79, second slope 80, driven bevel gear 81, one-way screw 82, vertical rod 83, driving bevel gear 84, Double wedge block 85, threaded steel bar 90.

Example

Basically as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, and Figure 6: an automatic welding system for threaded steel bars for tunnels, including a base 10, both sides of the surface of the base 10 are solid There are vertical blocks 11 connected thereto. A guide block 12 is fixedly connected between the two vertical blocks 11. A rotating shaft 13 is rotatably connected between the two vertical blocks 11. The rotating shaft 13 is located below the guide block 12.

Several clamping parts are provided on the rotating shaft 13 at equal intervals along the axial direction of the rotating shaft 13. The clamping parts include a threaded section 20 symmetrically arranged on the rotating shaft 13 and a clamping block 21 threadedly connected to the threaded section 20. The clamping block 21 Slidingly connected with the guide block 12, the two clamping blocks 21 of each clamping part move in opposite directions; the bottom of the clamping block 21 is provided with a first slope 22 for resisting the threaded steel bar 90; the surface of the base 10 is along the base 10 A number of grooves 23 for placing threaded steel bars 90 are provided at equal intervals in the length direction. Each groove 23 is located between the two clamping blocks 21 of each clamping part. The grooves 23 are arc-shaped; a welding machine is also included. 30 structure and a driving mechanism for driving the rotating shaft 13 to rotate. The welding machine 30 structure includes a welding machine 30, a first cylinder 31, a second cylinder, a third cylinder 32 and support blocks 33 fixed on both sides of the surface of the base 10. Welding The machine 30 adopts commonly used equipment on the market. A top base 34 is fixedly connected between the two support blocks 33. The first cylinder 31 is fixedly connected to the top base 34. The first moving block 35 is fixedly connected to the output shaft of the first cylinder 31. , the first moving block 35 moves along the length direction of the top base 34, and the first moving block 35 is slidingly connected with the top base 34; the second cylinder is fixed on the first moving block 35, and the output shaft of the second cylinder is fixedly connected with The second moving block 36 moves along the width direction of the top base 34. The second moving block 36 is slidingly connected to the first moving block 35; the third cylinder 32 is fixed on the second moving block 36. The third moving block 37 is fixed on the output shaft of the cylinder 32. The moving direction of the third moving block 37 is perpendicular to the top base 34, that is, the third moving block 37 moves vertically; the welding machine 30 is fixed on the third moving block 37. bottom of. The driving mechanism is a motor 14, which is a servo motor 14. The motor 14 is fixed on the vertical block 11, and the output shaft of the motor 14 is coaxially connected to the rotating shaft 13.

The base 10 is provided with a number of limiting parts and a number of adjusting parts at equal intervals along the length direction of the base 10. The limiting parts include two bottom blocks 40 and elastic blocks 41 located on both sides of the groove 23. The two bottom blocks 40 are respectively connected with The bottoms of the two clamping blocks 21 of each clamping part are fixed, that is, the bottom of each clamping block 21 is fixed with a bottom block 40. The side walls of the bottom block 40 are vertically provided with side grooves 42. The side grooves There is a lifting block 43 slidingly connected inside 42; the elastic block 41 is an elastic iron block, and the elastic block 41 is arc-shaped. The protruding directions of the two elastic blocks 41 are arranged transversely opposite to each other. One end of the elastic block 41 is fixedly connected to the base 10, and the elastic block 41 The other end is fixedly connected with the lifting block 43; when the two clamping blocks 21 of each clamping part are close to or away from each other, the adjusting part simultaneously drives the two lifting blocks 43 of each limiting part to move vertically, and the adjusting part includes symmetrical There is a top groove 50 on the surface of the base 10, and the groove 23 is located between the two top grooves 50; an inclined groove 51 is provided on the inner wall of the top groove 50, and the distance between the two inclined grooves 51 gradually decreases from top to bottom; the tilt A slide block is slidably connected in the groove 51 . The slide block is fixedly connected to the lifting block 43 . The lifting block 43 can move laterally and vertically in the top groove 50 .

A solid block 60 is fixed on the side wall of the lifting block 43 . An arc surface 61 is provided at one end of the solid block 60 away from the bottom block 40 for abutting against the deformed elastic block 41 .

The base 10 is provided with a number of positioning parts equidistantly along the length direction of the base 10. The positioning parts include a cavity 70 opened inside the base 10 and a guide groove 71 opened in the side wall of the base 10. The cavity 70 is connected with each adjusting part. The two top grooves 50 are connected, and a vertical groove 72 is opened at the bottom of the chamber 70. A first wedge 73 is slidably connected in the vertical groove 72, and a first spring is fixedly connected between the first wedge 73 and the chamber 70. 74. There is a positioning groove 75 on the side wall of the first wedge block 73; a transverse block 76 is fixed on the top of the first wedge block 73, and positioning grooves 761 are formed on both sides of the transverse block 76; the side wall of the lifting block 43 The limiting block 77 is fixedly connected, and the limiting block 77 is slidingly matched with the limiting groove 761. The limiting block 77 can move laterally and vertically in the top groove 50 and the chamber 70, and the transverse block 76 is located on the movement trajectory of the pressure block; A second wedge 78 for being squeezed by the first wedge 73 is slidably connected in the guide groove 71 . A second spring 79 is fixedly connected between the second wedge 78 and the base 10 . The second wedge 78 is connected to the positioning groove 75 Slip fit.

A second slope 80 is provided on the side of the bottom of the clamping block 21 away from the first slope 22; a number of auxiliary parts are provided on the base 10 at equal intervals along the length direction of the base 10, and the auxiliary parts are located between two adjacent clamping parts; The auxiliary part includes a driven bevel gear 81 coaxially connected with the rotating shaft 13, a one-way screw 82 rotatably connected with the base 10, and a vertical rod 83 fixedly connected with the base 10. The one-way screw 82 is fixedly connected with the driven gear. The driving bevel gear 84; the one-way screw 82 is threadedly connected with a double wedge block 85 used to offset the second inclined plane 80. The double wedge block 85 is slidingly connected to the vertical rod 83, and the second inclined plane 80 is located on the double wedge block 85. on the movement trajectory.

The specific implementation process is as follows:

During use, several threaded steel bars 90 are placed in the grooves 23 one by one, and the threaded steel bars 90 are supported through the grooves 23. Moreover, at this time, the threaded steel bars 90 are located between the two clamping blocks 21, and the threaded steel bars 90 are also located between the two clamping blocks 21. Between the two elastic blocks 41; since the groove 23 is arc-shaped, the contact area between the threaded steel bar 90 and the groove 23 is increased, thereby improving the support stability.

Start the motor 14, and the output shaft of the motor 14 drives the rotating shaft 13 to rotate, so that the two clamping blocks 21 of each clamping part are approached under the action of the threaded section 20 and the guide block 12; while the two clamping blocks 21 are approaching, the two clamping blocks 21 are close to each other. Each clamping block 21 moves in the direction of the threaded steel bar 90. When the first inclined surfaces 22 of the two clamping blocks 21 both offset the threaded steel bar 90, the motor 14 is turned off, thereby realizing the stop of the rotating shaft 13, that is, the clamping is realized. The holding block 21 is stopped, and then the two clamping blocks 21 are used to clamp and position the threaded steel bar 90; and because the first inclined surface 22 offsets the threaded steel bar 90, the clamping block 21 can also clamp the threaded steel bar 90 It has a compressing effect, thereby strengthening the positioning effect of the threaded steel bar 90.

When the two clamping blocks 21 are approaching, the two clamping blocks 21 drive the two bottom blocks 40 to move synchronously, that is, the two bottom blocks 40 are also approaching. During the lateral movement of the bottom block 40, the bottom block 40 drives the lifting block 43 to move synchronously. , the lifting block 43 drives the slide block to move synchronously. Since the slide block slides in the inclined groove 51, during the lateral movement of the slide block, the slide block will also drive the lifting block 43 to move downward, that is, during the lateral movement of the bottom block 40, the lifting block 40 moves downward. The block 43 moves both laterally and vertically.

During the lateral and vertical movement of the lifting block 43, the lateral movement of the lifting block 43 can drive the upper end of the elastic block 41 close to the threaded steel bar 90, and then drive the elastic block 41 close to the threaded steel bar 90; at the same time, the vertical movement of the lifting block 43 can Bring the two ends of the elastic block 41 closer together, thereby increasing the amplitude of the convex part of the elastic block 41, that is, allowing the convex part of the elastic block 41 to offset the threaded steel bar 90; the lifting block 43 continues to move, so that the convex part of the elastic block 41 The deformation is partially hindered by the threaded steel bar 90. When the clamping block 21 is stopped, the elastic block 41 is also stopped, and the deformation of the elastic block 41 stops. That is, the two elastic blocks 41 are used to clamp and position the threaded steel bar 90. , thereby enhancing the positioning effect of the threaded steel bar 90; and, using the deformed elastic block 41 to offset the threaded steel bar 90, the contact area between the two is increased, further strengthening the positioning effect of the threaded steel bar 90.

During the movement of the lifting block 43, the lifting block 43 will also drive the solid block 60 to move synchronously. When the clamping block 21 is stopped, the elastic block 41 deforms and offsets the threaded steel bar 90. At the same time, the solid block 60 and the deformed elastic block The blocks 41 offset, that is, the arc surface 61 offsets the deformed elastic block 41. On the one hand, it can support the elastic block 41, and on the other hand, it can also ensure the deformed shape of the elastic block 41, thereby ensuring that the deformed elastic block 41 The stability of fitting with the threaded steel bar 90 is to improve the stability of the clamping and positioning of the threaded steel bar 90 by the two elastic blocks 41 .

The lifting block 43 can move laterally and vertically, that is, the movement direction of the lifting block 43 is tilted. During the tilting movement of the lifting block 43, the lifting block 43 drives the limiting block 77 to move synchronously. Since the limiting block 77 slides with the limiting groove 761 Therefore, the limit block 77 can slide in the limit groove 761 , and at the same time, the limit block 77 also drives the transverse block 76 to move downward, and the transverse block 76 drives the first wedge block 73 to also move downward, and the first spring 74 Compression; when the clamping block 21 is stopped, the lifting block 43 is also stopped, and then the first wedge block 73 is also stopped.

During the downward movement of the first wedge 73, the first wedge 73 presses the second wedge 78 to move outward, and the second spring 79 stretches; the first wedge 73 continues to move downward, so that the second wedge 78 and The side walls of the first wedge 73 are against each other; the first wedge 73 continues to move downward. When the clamping block 21 is stopped, the lifting block 43 also stops, and then the first wedge 73 also stops. At this time The second wedge 78 is transversely opposite to the positioning groove 75. The second wedge 78 extends into the positioning groove 75 under the action of the second spring 79, thereby positioning the first wedge 73 and the transverse block 76. Then, the lifting block 43 is positioned through the limiting block 77, that is, the upper end of the elastic block 41 is positioned to ensure the stability of the elastic block 41 and the threaded steel bar 90, thereby improving the stability of positioning the threaded steel bar 90.

During the rotation of the rotating shaft 13, the rotating shaft 13 drives the driving bevel gear 84 to rotate. The driving bevel gear 84 meshes with the driven bevel gear 81 to drive the driven bevel gear 81 to rotate. The driven bevel gear 81 drives the one-way screw 82 to rotate, making the double wedge block 85 moves upward, that is, the double wedge block 85 moves in the direction of the second inclined plane 80; the double wedge block 85 continues to move, and when the rotating shaft 13 is stopped, the double wedge block 85 also stops. At this time, the double wedge block 85 also stops. 85 simultaneously offsets the two adjacent inclined wedge surfaces of the two adjacent clamping parts, thereby ensuring the stability of the first inclined surfaces 22 of the two adjacent clamping parts and the threaded steel bars 90 at the same time, that is, improving the stability of the threaded The stability of the steel bar 90 positioning.

After the positioning of each threaded steel bar 90 is completed, the welding machine 30 and the third cylinder 32 are started. The output shaft of the third cylinder 32 drives the third moving block 37 to move downward. The third moving block 37 drives the welding machine 30 to act on the threaded steel bars. 90 requires the position of the welding machine to realize the welding process; and the position of the welding machine 30 can also be adjusted according to the needs of use, specifically: start the first cylinder 31, and the output shaft of the first cylinder 31 drives the first moving block 35 along the The length direction movement of the top base 34 drives the welding machine 30 to move along the length direction of the top base 34, thereby changing the position of the welding machine 30; the second cylinder is started, and the output shaft of the second cylinder drives the second moving block 36 along the top base. The width direction movement of the base 34 further drives the welding machine 30 to move along the width direction of the top base 34, thereby changing the position of the welding machine 30.

In this embodiment, a number of rubber blocks (not shown in the figure) are fixedly fixed on the surface of the elastic block 41 at equal intervals, and anti-slip patterns are provided on both sides of the rubber block; when the elastic block 41 offsets the threaded steel bar 90, the rubber block Stretch into the gap of the threaded steel bar 90, so as to limit the threaded steel bar 90 and prevent the threaded steel bar 90 from rotating, that is, to strengthen the positioning effect of the threaded steel bar 90; and, the rubber block is in contact with the inner walls on both sides of the gap, The anti-skid pattern increases the friction between the two, thereby enhancing the limiting effect on the threaded steel bar 90 .

In this embodiment, a movable block 781 is also included, and the second wedge block 78 is fixedly connected to the movable block 781; through the movable block 781, several second wedge blocks 78 can be driven to move simultaneously, so that all the second wedge blocks 78 can be moved out at the same time. The positioning groove 75 allows several first wedges 73 to be movable at the same time; the operation is more convenient.

The above are only embodiments of the present invention, and common knowledge such as specific technical solutions and/or characteristics that are known in the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention. These should also be regarded as the protection scope of the present invention and will not affect the implementation of the present invention. The effect and practicality of the patent. The scope of protection claimed in this application shall be based on the content of the claims, and the specific implementation modes and other records in the description may be used to interpret the content of the claims.

Claims (8)

1. The utility model provides a screw thread reinforcing bar automatic weld system for tunnel, includes base, its characterized in that: the two sides of the surface of the base are provided with vertical blocks, a guide block is arranged between the two vertical blocks, a rotating shaft is rotationally connected between the two vertical blocks, a plurality of clamping parts are equidistantly arranged on the rotating shaft along the axial direction of the rotating shaft, each clamping part comprises a threaded section symmetrically arranged on the rotating shaft and clamping blocks in threaded connection with the threaded section, the clamping blocks are in sliding connection with the guide block, and the movement directions of the two clamping blocks of each clamping part are opposite; the bottom of the clamping block is provided with a first inclined plane which is used for propping against the twisted steel; the surface of the base is provided with a plurality of grooves for placing the twisted steel at equal intervals along the length direction of the base, and each groove is positioned between two clamping blocks of each clamping part; the welding mechanism and the driving mechanism for driving the rotating shaft to rotate are also included.

2. The automatic welding system for screw bars for tunnels according to claim 1, wherein: a plurality of limiting parts and a plurality of adjusting parts are equidistantly arranged on the base along the length direction of the base, each limiting part comprises two bottom blocks and elastic blocks positioned at two sides of the groove, the two bottom blocks are fixedly connected with the bottoms of the two clamping blocks of each clamping part respectively, side grooves are vertically formed in the side walls of the bottom blocks, and lifting blocks are connected in the side grooves in a sliding mode; the elastic blocks are arc-shaped, the protruding directions of the two elastic blocks are transversely opposite, one end of each elastic block is fixedly connected with the base, and the other end of each elastic block is fixedly connected with the lifting block; when the two clamping blocks of each clamping part are close to or far away from each other, the adjusting part drives the two lifting blocks of each limiting part to vertically move.

3. The automatic welding system for screw bars for tunnels according to claim 2, wherein: the adjusting part comprises top grooves symmetrically arranged on the surface of the base, and the groove is positioned between the two top grooves; the inner wall of the top groove is provided with an inclined groove, and the distance between the two inclined grooves is gradually reduced from top to bottom; the inclined groove is internally and slidably connected with a sliding block, the sliding block is fixedly connected with a lifting block, and the lifting block can transversely and vertically move in the top groove.

4. The automatic welding system for a screw-type reinforcing bar for a tunnel according to claim 3, wherein: the surface equidistance of elastic block is equipped with a plurality of rubber blocks, and the both sides of rubber block all are equipped with anti-skidding line.

5. The automatic welding system for screw bars for tunnels according to claim 4, wherein: the side wall of the lifting block is provided with a solid block, and one end of the solid block, which is far away from the bottom block, is provided with an arc surface for propping against the deformed elastic block.

6. The automatic welding system for screw bars for tunnels according to claim 5, wherein: a plurality of positioning parts are equidistantly arranged in the base along the length direction of the base, each positioning part comprises a cavity formed in the base and a guide groove formed in the side wall of the base, each cavity is communicated with two top grooves of each adjusting part, a vertical groove is formed in the bottom of each cavity, a first wedge block is connected in the vertical groove in a sliding mode, a first spring is arranged between each first wedge block and each cavity, and a positioning groove is formed in the side wall of each first wedge block; the top of the first wedge block is provided with a transverse block, and both sides of the transverse block are provided with limit grooves; the side wall of the lifting block is provided with a limiting block, the limiting block is in sliding fit with the limiting groove, the limiting block can transversely and vertically move in the top groove and the cavity, and the transverse block is positioned on the movement track of the pressing block; the guide groove is connected with a second wedge block in a sliding mode, the second wedge block is extruded by the first wedge block, a second spring is arranged between the second wedge block and the base, and the second wedge block is matched with the positioning groove in a sliding mode.

7. The automatic welding system for screw bars for tunnels according to claim 6, wherein: the device also comprises a movable block, and the second wedge block is fixedly connected with the movable block.

8. The automatic welding system for screw bars for tunnels according to claim 7, wherein: a second inclined plane is arranged at one side of the bottom of the clamping block, which is far away from the first inclined plane; a plurality of auxiliary parts are equidistantly arranged on the base along the length direction of the base, and the auxiliary parts are positioned between two adjacent clamping parts; the auxiliary part comprises a driven bevel gear coaxially connected with the rotating shaft, a unidirectional screw rod rotationally connected with the base and a vertical rod fixedly connected with the base, and a driving bevel gear meshed with the driven gear is fixedly connected on the unidirectional screw rod; the unidirectional screw is in threaded connection with a double-wedge surface block which is used for propping against the second inclined plane, the double-wedge surface block is in sliding connection with the vertical rod, and the second inclined plane is positioned on the motion track of the double-wedge surface block.