wire threading machine

Abstract

The application provides a threading machine suitable for threading a threaded sleeve rib, comprising a frame, a carrier, a grabbing assembly assembled on the carrier and used for grabbing the threaded sleeve rib, a multi-axis driving mechanism assembled on both the carrier and the frame, a pushing body movably arranged on the carrier and movable along a threading direction, and a reciprocating driver assembled on the carrier and used for driving the pushing body to move reciprocally. The multi-axis driving mechanism drives the carrier to move relative to the frame along with the grabbing assembly; the pushing body is configured to have a moving path passing through the threaded sleeve on the grabbed rib, so that the threaded sleeve is pushed to slide on the rib during the movement of the pushing body along the threading direction, so that the rib grabbed by the grabbing assembly is threaded into a threading hole of an external model base under the pushing of the threaded sleeve by the pushing body and / or the conveying of the grabbing assembly; and the threading machine solves the defect that the existing threading machine cannot be suitable for the threading operation of the threaded sleeve rib.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cage bar production in the pipe pile industry, and particularly relates to a bar threading machine suitable for threading bars with threaded sleeves. BACKGROUND

[0002] It is well known that a pipe pile is a combination of prefabricated concrete material and a reinforcement cage, and is widely used in the construction industry.

[0003] In the production process of the reinforcement cage, the steps include: a step of cutting the reinforcement bars of a desired length from the part of the rolled reinforcement bars after being unwound and straightened, a step of processing the two ends of the reinforcement bars into a radially protruding head structure, a step of threading the ends of a plurality of reinforcement bars through the corresponding threading holes of the mold seat and assembling them on the traction trolley, a step of roll welding welding wires on the reinforcement bars arranged at equal intervals in a circle controlled by the mold seat to form the main body of the reinforcement cage, and a step of assembling end plates at the ends of the main body of the reinforcement cage and locking them with the head structure of the ends. In the process of threading the ends of the reinforcement bars through the corresponding threading holes of the mold seat, the use of a threading device is indispensable, which can automatically thread the head structure of the ends of the reinforcement bars through the threading holes of the mold seat, replacing manual threading.

[0004] At present, a suspension type automatic bar threading device is disclosed in Chinese Patent Application No. 202122146968.3, but it cannot thread bars with threaded sleeves. This is because the threaded sleeve on the bar can slide along the bar and may not move forward with the bar during the threading process, so that the head structure of the end of the bar cannot drive the threaded sleeve to pass through the threading hole during the process of passing through the threading hole of the mold seat.

[0005] Therefore, there is an urgent need for a bar threading machine suitable for threading bars with threaded sleeves to overcome one or more of the above-mentioned defects. SUMMARY

[0006] The present application aims to provide a bar threading machine suitable for threading bars with threaded sleeves.

[0007] To achieve the above object, the present application provides a bar threading machine, which is suitable for threading a bar with a threaded sleeve into a threading hole of an external mold base. The bar threading machine comprises a frame, a carrier, a grabbing assembly assembled on the carrier and used for grabbing the bar with the threaded sleeve, a multi-axis driving mechanism assembled on both the carrier and the frame, a pushing body movably arranged on the carrier and movable along a threading direction, and a reciprocating driver assembled on the carrier and used for driving the pushing body to move reciprocally. The multi-axis driving mechanism drives the carrier together with the grabbing assembly to move in multi-axes relative to the frame, and the pushing body is configured to have a moving path passing through the threaded sleeve on the grabbed bar, so that the threaded sleeve is pushed to slide on the bar during the movement of the pushing body along the threading direction, thereby causing the bar grabbed by the grabbing assembly to be threaded into the threading hole of the external mold base under the pushing of the threaded sleeve by the pushing body and / or the conveying of the grabbing assembly.

[0008] Preferably, the pushing body is slidably arranged on the carrier, and the pushing body drives the bar to be threaded into the threading hole when the pushing body pushes the threaded sleeve to slide on the bar to abut against a head structure on the bar.

[0009] Preferably, the bar threading machine further comprises a supporting mechanism located behind the grabbing assembly along the threading direction, and the supporting mechanism comprises a supporting bracket movably assembled on the carrier. The supporting bracket has at least a supporting position and a yielding position relative to the carrier during movement. The supporting bracket supports the bar grabbed by the grabbing assembly from below when the supporting bracket is in the supporting position.

[0010] Preferably, the supporting mechanism further comprises a switching driver assembled on the carrier, and the switching driver drives the supporting bracket to switch between the supporting position and the yielding position.

[0011] Preferably, the supporting bracket is pivoted to the carrier body about a pivoting center line arranged along the bar penetrating direction, the supporting bracket is provided with a wheel away from the pivoting center line, the carrier body is provided with a lateral positioning member arranged opposite to the supporting bracket along the pivoting direction of the supporting bracket, the lateral positioning member positions the bar grabbed by the grabbing assembly from the lateral side, the wheel is close to the lateral positioning member and supports the bar grabbed by the grabbing assembly from the lower side when the supporting bracket is in the supporting position, the wheel is away from the lateral positioning member when the supporting bracket is in the retreating position; the switching driver has a driver body and a telescopic body telescopically sliding relative to the driver body, one of the telescopic body and the driver body is located at a position between the pivoting center line and the wheel, and the other of the telescopic body and the driver body is pivoted to the carrier body.

[0012] Preferably, the grabbing assembly clamps the bar along a horizontal direction intersecting the bar penetrating direction, a threaded sleeve on the bar is located in front of the grabbing assembly along the bar penetrating direction, and the pushing body passes through the grabbing assembly right above the bar clamped by the grabbing assembly.

[0013] Preferably, the reciprocating driver is located above the pushing body in correspondence, the reciprocating driver includes a driver body and a telescopic body telescopically sliding relative to the driver body along a direction parallel to the bar penetrating direction, the driver body is fixed to the carrier body, the telescopic body is spaced apart from the pushing body along the up-down direction, and the telescopic body and the pushing body are fixed together through an intermediate connecting frame, and the pushing body is long strip-shaped.

[0014] Preferably, the telescopic body extends in a direction opposite to the bar penetrating direction, the carrier body is provided with a carrier guide structure located between the grabbing assembly and the intermediate connecting frame along the bar penetrating direction, and the pushing body is arranged in the carrier guide structure.

[0015] Preferably, the carrier guide structure includes two wheels arranged opposite along the horizontal direction, the side wall of the wheel is provided with an annular groove matching the pushing body, and the pushing body is arranged in the annular groove.

[0016] Preferably, the reciprocating driver is located at the top of the carrier body, and the grabbing assembly is located at the side of the carrier body; the grabbing assembly comprises a rotating driver, a first wheel, a second wheel, and a closing and opening driver for driving the first wheel and the second wheel to slide along a horizontal direction intersecting the threading direction; the closing and opening driver and the rotating driver are each assembled to the carrier body, and the rotating driver drives the first wheel and / or the second wheel to rotate; the multi-axis driving mechanism comprises a first axis moving device and a second axis moving device; the first axis moving device is assembled to the frame, the second axis moving device is assembled to the output end of the first axis moving device, and the carrier body is assembled to the output end of the second axis moving device; the threading direction, the moving direction of the first axis moving device, and the moving direction of the second axis moving device together form an X direction, a Y axis direction, and a Z axis direction in a three-dimensional coordinate system.

[0017] Compared with the prior art, the threading machine further comprises a pushing body movably arranged on the carrier body and movable along the threading direction, and a reciprocating driver assembled to the carrier body and driving the pushing body to move reciprocally, and the pushing body is configured to pass through the threaded sleeve on the grabbed reinforcing bar in the moving path, so that the pushing body can push the threaded sleeve to slide on the reinforcing bar during the movement along the threading direction; therefore, in the case that the grabbing assembly does not have the function of conveying the reinforcing bar, the threaded sleeve can drive the stub structure at the end of the reinforcing bar to pass through the threading hole of the external model seat when the threaded sleeve slides to abut against the stub structure, so as to achieve the automatic threading purpose of the reinforcing bar with the threaded sleeve; in the case that the grabbing assembly has the function of conveying the reinforcing bar, the grabbing assembly is responsible for conveying the reinforcing bar, so that the stub structure at the end of the reinforcing bar passes through the threading hole of the external model seat, and the pushing body pushes the threaded sleeve to slide along the reinforcing bar and pass through the threading hole before, after or during the conveying of the reinforcing bar by the grabbing assembly, so as to achieve the automatic threading purpose of the reinforcing bar with the threaded sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the threading machine of the present application when the reinforcing bar with the threaded sleeve is grabbed and the supporting bracket is in the supporting position.

[0019] Figure 2 is Figure 1 is a perspective view of the threading machine shown in another angle.

[0020] Figure 3 is Figure 1 is a perspective view of the threading machine shown in another angle.

[0021] Figure 4 is a perspective view of the threading machine shown in another angle. Figure 3Figure 3 is a perspective view of the present application showing the pusher body in the retracted position.

[0022] Figure 5 Figure 4 is a perspective view of the present application showing the pusher body in the extended position. Figure 2 Figure 5 is a perspective view of the present application showing the pusher body in the retracted position.

[0023] Figure 6 Figure 6 is a perspective view of the present application showing the pusher body in the extended position. Figure 3 Figure 7 is a plan view of the present application as viewed in the direction of arrow A.

[0024] Figure 7 Figure 8 is a plan view of the present application as viewed in the direction of arrow A. Figure 4 Figure 9 is a plan view of the present application as viewed in the direction of arrow A.

[0025] Figure 8 Figure 10 is a perspective view of the present application showing the pusher body in the retracted position. Figure 1 Figure 11 is a perspective view of the present application showing the pusher body in the extended position.

[0026] Figure 9 Figure 12 is a plan view of the present application showing the pusher body in the retracted position.

[0027] Figure 10 Figure 13 is a plan view of the present application showing the pusher body in the extended position.

[0028] Figures 11a to 11d Figure 14 is a flow chart showing the threading of the threaded sleeve of the rebar into the threaded hole of the model base by the cooperation of the gripping assembly and the pusher body.

[0029] Figures 12a to 12c Figure 15 is another flow chart showing the threading of the threaded sleeve of the rebar into the threaded hole of the model base by the cooperation of the gripping assembly and the pusher body. DETAILED DESCRIPTION

[0030] In order to describe the technical content and structural features of the present application in detail, the following further description is made in conjunction with the embodiments and the accompanying drawings.

[0031] Referring to Figure 1 , Figure 2 , Figure 9 and Figure 10 , the present application is a rebar threading machine 100 for threading the rebar 220 with the threaded sleeve 210 into the threaded hole 310 of the model base 300, as shown in Figure 11d or Figure 12c , to replace the manual operation mode of threading the rebar 220 with the threaded sleeve 210. The rebar threading machine 100 of the present application comprises a frame 10, a carrier 20, a gripping assembly 30, a multi-axis drive mechanism 40, a pusher body 50 and a reciprocating drive 60. Optionally, Figure 1 and Figure 2In an embodiment, as an example, the rack 10 comprises a vertical support 11 and a crossbeam 12, one end of the crossbeam 12 is fixed at the top end of the vertical support 11, so that the other end of the crossbeam 12 is arranged away from the vertical support 11 and is suspended, providing sufficient space for the assembly of the multi-axis driving mechanism 40; of course, the rack 10 can also be designed into other shapes and structures according to actual needs, and therefore is not limited to the embodiment shown in the drawings. Figure 1 and Figure 2 The embodiment shown in the drawings is only an example.

[0032] The gripping assembly 30 is assembled on the carrier 20 and is used to grip the rib 220 with the threaded sleeve 210, so that under the cooperation of the multi-axis driving mechanism 40, the gripping assembly 30 can grip the rib 220 with the threaded sleeve 210 from the rib feeding station and then transfer the rib 220 with the threaded sleeve 210 to the rib penetrating station; alternatively, in Figures 1 to 4 In an embodiment, as an example, the gripping assembly 30 is located at the side 22 of the carrier 20, so that the gripping assembly 30 and the carrier 20 are not increased in the up-down direction, of course, the gripping assembly 30 can also be located at other positions of the carrier 20 according to actual needs, and therefore is not limited to the embodiment shown in the drawings. Figures 1 to 4

[0033] The multi-axis driving mechanism 40 is assembled on both the carrier 20 and the rack 10, so that the multi-axis driving mechanism 40 can drive the carrier 20 together with the gripping assembly 30 to move relative to the rack 10 in multiple axes; alternatively, in Figure 1 and Figure 2 In an embodiment, as an example, the multi-axis driving mechanism 40 comprises a first-axis moving device 41 and a second-axis moving device 42, the first-axis moving device 41 is assembled on the rack 10, the second-axis moving device 42 is assembled on the output end 411 of the first-axis moving device 41, the carrier 20 is assembled on the output end 421 of the second-axis moving device 42, the moving direction of the first-axis moving device 41, the moving direction of the second-axis moving device 42 and the rib penetrating direction together constitute the X direction, the Y-axis direction and the Z-axis direction in a three-dimensional coordinate system, for example, in Figure 1 and Figure 2 In an embodiment, the moving direction of the first-axis moving device 41 is the Y-axis direction in the three-dimensional coordinate system, the moving direction of the second-axis moving device 42 is the Z-axis direction in the three-dimensional coordinate system, and the rib penetrating direction is the X-axis direction in the three-dimensional coordinate system, the purpose of this design is to enable the multi-axis driving mechanism 40 to drive the carrier 20 and the gripping assembly 30 to move in the Y-axis direction and the Z-axis direction respectively, of course, the multi-axis driving mechanism 40 can also be selected into other structures according to actual needs, for example but not limited to a multi-joint robot; for example, in Figure 1 and Figure 2 ​In this design, the first axis transfer device 41 and the second axis transfer device 42 can each be composed of a servo motor, a gear, a linear rack meshing with the gear, and a sliding body forming the output end 411 (421). Of course, depending on actual needs, the first axis transfer device 41 and the second axis transfer device 42 can also be existing structures well known in the art, so they will not be described in detail here. It should be noted that when the frame 10 includes a vertical stand 11 and a crossbeam 12, the multi-axis drive mechanism 40 is mounted on the crossbeam 12, specifically the first axis transfer device 41 is mounted on the crossbeam 12. Alternatively, the transfer direction of the first axis transfer device 41 can be designed as the X-axis direction in the three-dimensional coordinate system, the transfer direction of the second axis transfer device 42 can be designed as the Z-axis direction in the three-dimensional coordinate system, and the rib-penetrating direction can be designed as the positive Y-axis direction in the three-dimensional coordinate system. Therefore, it is not necessary to specify the specific direction of the transfer device 41. Figure 1 and Figure 2 The coordinate system shown is limited.

[0034] The jacking body 50 is movably mounted on the bearing body 20 and can move along the direction of the reinforcing bars (i.e., indicated by arrow A). The jacking body 50 is configured such that its movement path (see...) Figures 11a to 11d ,as well as Figures 12a to 12c The threaded sleeve 210 on the grasped rib 220 is pushed onto the rib 220 to slide on the rib 220 during the movement of the jacking body 50 along the rib-penetrating direction; alternatively, the jacking body 50 is movably disposed on the bearing body 20 by sliding the jacking body 50 along the parallel rib-penetrating direction (i.e., the direction indicated by arrow A and the opposite direction), and the projections of the jacking body 50 and the threaded sleeve 210 along the rib-penetrating direction at least partially overlap, so that the threaded sleeve 210 can be pushed onto the rib 220 to slide on the rib 220 during the sliding of the jacking body 50 along the rib-penetrating direction; furthermore, Figures 1 to 4 In this design, the jacking body 50 is elongated, and its cross-sectional outer contour can be circular, elliptical, or polygonal to simplify its structure. Of course, the manner in which the jacking body 50 moves on the support body 20 and its shape can also be designed in other ways. Therefore, it is not limited to... Figures 1 to 4 The above is the limit.

[0035] The reciprocating drive 60 is mounted on the carrier 20, and optionally, in Figure 1 and Figure 3 In this example, the reciprocating actuator 60 is located at the top 21 of the carrier 20, effectively preventing interference and collision between the reciprocating actuator 60 and the rib 220 when the gripping assembly 30 grips the threaded sleeve 210, and ensuring sufficient clearance at the rib loading station to avoid collision. Of course, depending on actual needs, the reciprocating actuator 60 can also be located at other positions on the carrier 20, as long as it ensures that the reciprocating actuator 60 does not interfere with the rib 200 during the gripping process of the gripping assembly 30. Therefore, it is not necessary to consider other locations.Figure 1 and Figure 3 The reciprocating driver 60 also drives the pushing body 50 to reciprocate to meet the power requirement of the reciprocating movement of the pushing body 50.

[0036] Therefore, in combination with Figures 11a to 11d In the process of penetrating the rib 220, the pushing body 50 slides on the rib 220 through the threaded sleeve 210 until it is blocked by the pier head structure 221 on the rib 220 (as shown in Figure 11b At this time, the pushing body 50 can drive the rib 220 to penetrate the rib penetrating hole 310 of the external mold base 300 through the threaded sleeve 210 (as shown in Figure 11d

[0037] It should be noted that when the pushing body 50 drives the rib 220 to penetrate the rib penetrating hole 310 of the external mold base 300 through the threaded sleeve 210, the grabbing assembly 30 can have a structure for conveying the rib 220, or can not have a structure for conveying the rib 220; when the grabbing assembly 30 does not have a structure for conveying the rib 220, the power for penetrating the rib 220 into the rib penetrating hole 310 comes from the reciprocating driver 60; when the grabbing assembly 30 has a structure for conveying the rib 220, the power for penetrating the rib 220 into the rib penetrating hole 310 can come from the reciprocating driver 60, or from the grabbing assembly 30 itself, or from both the reciprocating driver 60 and the grabbing assembly 30. Therefore, in the process of penetrating the rib 220, the rib 220 grabbed by the grabbing assembly 30 can also penetrate the rib penetrating hole 310 of the external mold base 300 through the conveying of the grabbing assembly 30, or the rib 220 grabbed by the grabbing assembly 30 can penetrate the rib penetrating hole 310 of the external mold base 300 through the driving of the threaded sleeve 210 by the pushing body 50 and the conveying of the grabbing assembly 30. More specifically, as follows:

[0038] As shown in Figure 2 and Figures 4 to 8 The rib penetrating machine 100 also includes a supporting mechanism 70 located behind the grabbing assembly 30 in the rib penetrating direction, the supporting mechanism 70 including a supporting bracket 71 movably assembled on the carrier 20 and a switching driver 75 assembled on the carrier 20. The supporting bracket 71 has at least a supporting position as shown in Figure 6 and a yielding position as shown in Figure 7 When the supporting bracket 71 is in the supporting position, it supports the rib 220 grabbed by the grabbing assembly 30 from below, and when the supporting bracket 71 is in the yielding position, it moves away to grab and support the rib 220 again; the switching driver 75 drives the supporting bracket 71 to the supporting position as shown in Figure 6 and the yielding position as shown in Figure 7 ​switches between the retreat position and the supporting position; the purpose of this design is to support the position of the strip 220 behind the gripping assembly 30, effectively overcoming the problem of the position of the strip 220 behind the gripping assembly 30 falling seriously due to lack of support, thereby improving the reliability of the strip threading. Specifically, in Figure 6 and Figure 7 , as an example, the supporting bracket 71 is pivoted to the carrier 20 around the pivoting center line 72 arranged along the strip threading direction, to ensure that the supporting bracket 71 can pivot up and down around the pivoting center line 72, and the carrier 20 is provided with a lateral positioning member 74 arranged opposite to the supporting bracket 71 along the pivoting direction of the supporting bracket 71 (see the clockwise direction or the counterclockwise direction in Figure 6 and Figure 7 ), the lateral positioning member 74 positions the strip 220 gripped by the gripping assembly 30 from the side; the supporting bracket 71 is provided with a wheel 73 away from the pivoting center line 72, the wheel 73 is close to the lateral positioning member 74 and supports the strip 220 gripped by the gripping assembly 30 from below when the supporting bracket 71 is in the supporting position as shown in Figure 6 , so that the strip 220 behind the gripping assembly 30 is supported by the wheel 73 and the lateral positioning member 74, which can also reduce the friction of the wheel 73 and the lateral positioning member 74 on the strip 220, thereby improving the smoothness of the strip 220 conveying; and the wheel 73 moves away from the lateral positioning member 74 when the supporting bracket 71 is in the retreat position, to prepare for the gripping and supporting of the strip 220 again; in addition, the switching driver 75 has a driver body 751 and a telescopic body 752 that slides relative to the driver body 751, the position 711 of the supporting bracket 71 between the pivoting center line 72 and the wheel 73 is pivoted to the telescopic body 752, and the driver body 751 is pivoted to the carrier 20, to meet the need that the switching driver 75 reliably drives the supporting bracket 71 to pivot around the pivoting center line 72. For example, the switching driver 75 is a pneumatic cylinder, of course, it can also be a hydraulic cylinder or an electric push rod according to actual needs, so it is not limited to this. It should be noted that although Figure 6 and Figure 7 show that the telescopic body 752 is pivoted to the position 711 and the driver body 751 is pivoted to the carrier 20, of course, the driver body 751 can be pivoted to the position 711 and the telescopic body 752 can be pivoted to the carrier 20 according to actual needs, so it is not limited to Figure 6 and Figure 7 .

[0039] To optimize the arrangement of the support mechanism 70 on the support body 20, it is positioned at the side 22' of the support body 20, so that the support mechanism 70 and the gripping component 30 are arranged in a rear-to-front configuration along the rib-through direction, i.e., the gripping component 30 is in front and the support mechanism 70 is behind. Furthermore, to ensure a more reliable fit between the lateral positioning member 74 and the wheel 73, the lateral positioning member 74 is offset from the wheel 73 along the pivot direction of the support bracket 71. For example, at... Figure 5 In the middle, there are two lateral positioning members 74. The wheel 73 is aligned with the space 741 between the two lateral positioning members 74 along the pivot direction of the support bracket 71, so that when the support bracket 71 is in the support position, the two lateral positioning members 74 can avoid collision interference with the wheel 73 by means of the space 741. Preferably, the lateral positioning member 74 is a bearing structure or a wheel structure, but is not limited to this.

[0040] like Figure 1 As shown, the gripping component 30 is positioned along a horizontal direction intersecting the rib-piercing direction (e.g., but not limited to...). Figure 1 The clamping rib 220 (pointed to by the positive Y-axis) has a threaded sleeve 210 on it located in front of the gripping assembly 30 along the rib-penetrating direction. The pushing body 50 passes through the gripping assembly 30 directly above the rib 220 it is holding. (See attached diagram). Figure 1 As shown; the purpose of this design is to position the jacking body 50 directly above the gripping rib 220, effectively overcoming the problem of interference between the jacking body 50 and the gripping assembly 30 when gripping the rib 220 because the jacking body 50 is positioned directly below the gripping rib 220. It also allows the jacking body 50 to be designed as a straight structure, thus simplifying its structure. When the jacking body 50 does not pass through the gripping assembly 30, since the projections of the jacking body 50 and the threaded sleeve 210 along the rib-passing direction need to overlap, and the jacking body 50 also needs to avoid the gripping assembly 30, the jacking body 50 will be designed in a bent shape, such as a "Z" shape, thus making its structure more complex. Specifically, in Figures 1 to 8 As an example, the gripping assembly 30 includes a rotary actuator 31, a first wheel 32, a second wheel 33, and a tensioning actuator 34 that drives the first wheel 32 and the second wheel 33 to slide in a horizontal direction intersecting the direction of the reinforcing bar. The tensioning actuator 34 and the rotary actuator 31 are each mounted on the carrier 20. The rotary actuator 31 drives the first wheel 32 to rotate, so that the gripping assembly 30, in addition to having the function of gripping the reinforcing bar 220, also has the function of conveying the gripped reinforcing bar 200. Of course, depending on actual needs, the rotary actuator 31 can also be designed to drive the second wheel 33 to rotate, so it is not necessary to specify the rotational actuator 31. Figures 1 to 8 The examples shown are for illustrative purposes only. For instance, the rotary actuator 31 may be an electric motor, and the opening / closing actuator 34 may be a pneumatic or hydraulic cylinder, but this is not a limitation.

[0041] It should be noted that, although Figures 1 to 8 The second wheel 33 shown is mounted on the output end of the opening / closing actuator 34, and the first wheel 32 is mounted on the output end of the rotation actuator 31. This allows the opening / closing actuator 34 to drive the second wheel 33 to slide closer to or further away from the first wheel 32, thus achieving the opening / closing purpose between the first wheel 32 and the second wheel 33. Of course, depending on actual needs, the first wheel 32 can also be mounted on the output end of the opening / closing actuator 34, and correspondingly, the second wheel 33 can be mounted on the output end of the rotation actuator 31, achieving the same opening / closing sliding purpose between the first wheel 32 and the second wheel 33. Therefore, it is not necessary to consider the first wheel 32 as the second wheel 33. Figures 1 to 8 The above is the limit.

[0042] like Figures 1 to 5 ,as well as Figure 8 As shown, the reciprocating actuator 60 includes an actuator body 61 and a telescopic body 62 that slides and extends relative to the actuator body 61 along a direction parallel to the through-rib direction. The actuator body 61 is fixed to the support body 20. When the reciprocating actuator 60 is located at the top 21 of the support body 20, the actuator body 61 is fixed at the top 21. The telescopic body 62 is spaced apart from the pusher body 50 in the vertical direction, and the telescopic body 62 and the pusher body 50 are fixed together by an intermediate connecting frame 63. This satisfies the need for the reciprocating actuator 60 to quickly drive the pusher body 50 to slide reciprocally, and also simplifies the structure of the reciprocating actuator 60. Specifically, in Figures 1 to 5 In this example, the extension direction of the telescopic body 62 (i.e., the direction indicated by arrow A) is opposite to the direction of the through-rib (i.e., the direction indicated by arrow A). This design avoids the problem of misalignment between the gripping component 30 and the telescopic body 62 that would occur if the extension direction of the telescopic body 62 were the same as the through-rib direction. The support body 20 is provided with a support guide structure 90 located between the gripping component 30 and the intermediate connecting frame 63 along the through-rib direction. The pusher body 50 is inserted into the support guide structure 90. With the help of the support guide structure 90, the pusher body 50 is supported at the position between the gripping component 30 and the intermediate connecting frame 63, effectively preventing the pusher body 50 from sagging due to suspension at the position between the gripping component 30 and the intermediate connecting frame 63, thereby improving the reliability of the pusher body 50 pushing the threaded sleeve 210. Specifically, in Figure 5 In the middle, the bearing guide structure 90 is located directly above the gripping rib 220. There are two bearing guide structures 90 spaced apart along the rib-penetrating direction. Each bearing guide structure 90 includes wheels 91 arranged opposite each other in the horizontal direction. The sidewall of each wheel 91 has an annular groove 911 that matches the pushing body 50. The pushing body 50 passes through the annular groove 911, thereby improving the support capacity for the pushing body 50 and the smoothness of its reciprocating sliding by utilizing the wheels 91 with the annular groove 911. It should be noted that although... Figure 5The displayed load-bearing guide structure 90 is two in number. Of course, depending on actual needs, it can be designed with one or three, so it is not considered... Figure 5 The above is the limit.

[0043] like Figures 1 to 5 ,as well as Figure 8 As shown, in order to further improve the smoothness of the reciprocating sliding of the jacking body 50 on the support body 20, a slide rail 23 extending parallel to the direction of the through rod is installed on the top 21 of the support body 20, and a slider 64 sliding on the slide rail 23 is installed on the intermediate connecting frame 63. Preferably, the slider 64 is located between the intermediate connecting frame 63 and the top 21 in the vertical direction.

[0044] Compared with the prior art, the rebar threading machine 100 of the present invention further includes a pusher 50 movably disposed on the support body 20 and movable along the threading direction, and a reciprocating drive 60 assembled on the support body 20 and driving the pusher 50 to reciprocate. The pusher 50 is configured such that its movement path passes through the threaded sleeve 210 on the gripped rebar 220. This allows the pusher 50 to push the threaded sleeve 210 to slide on the rebar 220 during its movement along the threading direction. Therefore, even when the gripping assembly 30 does not have the function of conveying the rebar 220, the pusher 50 can push the threaded sleeve 210 to slide to the end of the rebar 220. When the pier head structure 221 is in contact with the external model base 300, it can drive the pier head structure 221 to pass through the reinforcing hole 310, thus achieving the automatic reinforcing of the reinforcing bar 220 with threaded sleeve 210. When the gripping component 30 has the function of conveying the reinforcing bar 220, the gripping component 30 can be responsible for conveying the reinforcing bar 220, so that the pier head structure 221 at the end of the reinforcing bar 220 passes through the reinforcing hole 310 of the external model base 300. After the gripping component 30 conveys the reinforcing bar 220, the jacking body 50 pushes the threaded sleeve 210 to slide along the reinforcing bar 220 until it passes through the reinforcing hole 310, thus also achieving the automatic reinforcing of the reinforcing bar 220 with threaded sleeve 210. See the state. Figures 12a to 12c As shown; while Figures 12a to 12c In the process, after the gripping component 30 inserts the gripped rib 220 into the rib-passing hole 310 of the external model base 300 (see status...), Figure 12b As shown), at this point, the jacking body 50 pushes the threaded sleeve 210 to slide along the reinforcing bar 220, and finally passes through the reinforcing bar hole 310 to reach the position where it abuts against the pier head structure 221. The state is shown in the figure. Figure 12c As shown.

[0045] It should be noted that when the gripping component 30 has a conveying function, during the process of the gripping component 30 conveying the rib 220, the pusher 50 can push the threaded sleeve 210 to slide along the rib 220 and pass through the rib-passing hole 310. That is, while the gripping component 30 is conveying the rib 220, the pusher 50 pushes the threaded sleeve 210, achieving synchronization of the conveying of the rib 220 and the pushing of the threaded sleeve 210. Therefore, it is not considered as... Figures 11a to 11d The rebar installation process shown Figures 12a to 12c The rib threading process shown is limited; in addition, the above rib threading process is carried out when the multi-axis drive mechanism 40 drives the gripping component 30 to move so that the gripped rib 220 is aligned with the rib threading hole 310 of the external model seat 300 along the rib threading direction.

[0046] To further explain, in order to save costs, a threaded sleeve 210 is used instead of an end plate. The process of installing the threaded sleeve 210 on the reinforcing bar 220 is as follows: the threaded sleeve 210 is sleeved on the reinforcing bar 220 when both ends of the reinforcing bar 220 have not been upsetting; or, the threaded sleeve 210 is sleeved on the reinforcing bar 220 from the other end while one end of the reinforcing bar 220 is being upsetting; or, the threaded sleeve 210 is sleeved on the reinforcing bar 220 from the other end after one end of the reinforcing bar 220 has been upsetting. This allows the threaded sleeve 210 to slide freely between the two upsetting structures 221 under the stopping action of the upsetting structures 221 at both ends of the reinforcing bar 220. Therefore, the suspension-type automatic reinforcing bar threading device described in the background art cannot realize the threading of the reinforcing bar 220 with the threaded sleeve 210.

[0047] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A rebar threading machine, suitable for threading rebars with threaded sleeves, inserting the rebars with threaded sleeves into threading holes in an external model holder, the rebar threading machine comprising a frame, a support body, a gripping assembly mounted on the support body for gripping the rebars with threaded sleeves, and a multi-axis drive mechanism mounted on both the support body and the frame, the multi-axis drive mechanism driving the support body together with the gripping assembly to perform multi-axis motion relative to the frame, characterized in that, The rebar threading machine further includes a pusher body movably disposed on the support body and movable along the threading direction, and a reciprocating drive assembly mounted on the support body and driving the pusher body to reciprocate. The pusher body is configured to move through the threaded sleeve on the gripped rib, so that during the movement of the pusher body along the threading direction, the threaded sleeve is pushed to slide on the rib, thereby causing the rib gripped by the gripping assembly to be threaded into the threading hole of the external model seat by the pusher body pushing the threaded sleeve and / or by the transport of the gripping assembly.

2. The rebar threading machine according to claim 1, characterized in that, The jacking body is slidably disposed on the bearing body. When the jacking body pushes the threaded sleeve to slide on the reinforcing bar until it abuts against the pier head structure on the reinforcing bar, it drives the reinforcing bar to pass through the reinforcing bar hole.

3. The rebar threading machine according to claim 1, characterized in that, It also includes a support mechanism located behind the gripping component along the direction of the reinforcing bar, the support mechanism comprising a support bracket movably mounted on the carrier, the support bracket having at least a support position and a retracted position relative to the carrier during the movement, the support bracket supporting the reinforcing bar gripped by the gripping component from below when in the support position.

4. The rebar threading machine according to claim 3, characterized in that, The support mechanism further includes a switching driver mounted on the carrier, the switching driver driving the support bracket to switch between the supporting position and the yielding position.

5. The rebar threading machine according to claim 4, characterized in that, The support bracket is pivotally connected to the carrier body around a pivot center line arranged along the direction of the through-rib. The support bracket is provided with wheels away from the pivot center line. The carrier body is provided with lateral positioning members arranged opposite to the support bracket along the pivot direction of the support bracket. The lateral positioning members laterally position the rib gripped by the gripping component. When the support bracket is in the supporting position, the wheels are close to the lateral positioning members and support the rib gripped by the gripping component from below. When the support bracket is in the retracting position, the wheels move away from the lateral positioning members. The switching drive has a drive body and a telescopic body that slides and extends relative to the drive body. The support bracket is located between the pivot center line and the wheels and is connected to one of the telescopic body and the drive body. The other of the telescopic body and the drive body is pivotally connected to the carrier body.

6. The rebar threading machine according to claim 1, characterized in that, The gripping component clamps the rib in a horizontal direction intersecting the rib-threading direction. The threaded sleeve on the rib is located in front of the gripping component along the rib-threading direction. The pushing body passes through the gripping component directly above the rib held by the gripping component.

7. The rebar threading machine according to claim 6, characterized in that, The reciprocating actuator is located above the corresponding jacking body. The reciprocating actuator includes an actuator body and a telescopic body that slides and extends relative to the actuator body along a direction parallel to the through-rib direction. The actuator body is fixed to the bearing body. The telescopic body is separated from the jacking body in the vertical direction. The telescopic body and the jacking body are fixed together by an intermediate connecting frame. The jacking body is elongated.

8. The rebar threading machine according to claim 7, characterized in that, The extension direction of the telescopic body is opposite to the direction of the through-rib, and the bearing body is provided with a bearing guide structure located between the gripping component and the intermediate connecting frame along the direction of the through-rib. The pushing body is inserted into the bearing guide structure.

9. The rebar threading machine according to claim 8, characterized in that, The load-bearing guide structure includes two wheels arranged opposite each other in a horizontal direction. The sidewalls of the wheels are provided with annular grooves that match the pusher body, and the pusher body passes through the annular grooves.

10. The rebar threading machine according to claim 1 or 6, characterized in that, The reciprocating drive is located at the top of the carrier, and the gripping assembly is located at the side of the carrier. The gripping assembly includes a rotary drive, a first wheel, a second wheel, and a tension-closing drive that drives the first wheel and the second wheel to slide in a horizontal direction intersecting the rib-piercing direction. The tension-closing drive and the rotary drive are each mounted on the carrier, and the rotary drive drives the first wheel and / or the second rotor to rotate. The multi-axis drive mechanism includes a first-axis transfer device and a second-axis transfer device. The first-axis transfer device is mounted on the frame, and the second-axis transfer device is mounted on the output end of the first-axis transfer device. The carrier is mounted on the output end of the second-axis transfer device. The rib-piercing direction, the transfer direction of the first-axis transfer device, and the transfer direction of the second-axis transfer device together constitute the X-direction, Y-axis direction, and Z-axis direction in a three-dimensional coordinate system.

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