Automatic punching device for pipeline bracket and construction method of automatic punching device

Abstract

The invention discloses an automatic punching device for a pipeline bracket, which comprises a cross rod arranged above a gap bridge guardrail along the width direction of the gap bridge guardrail; the first vertical rod is located on the inner side of the gap bridge guardrail; the second vertical rod is located on the outer side of the gap bridge guardrail; the punching mechanism is arranged on the second vertical rod in a sliding manner; the positioning mechanism comprises a first telescopic component, a second telescopic component, a first supporting rod, a second supporting rod and a positioning plate, the first supporting rod and the second supporting rod are arranged at the upper end and the lower end of the outer side face of the positioning plate respectively, one end of the first telescopic component is connected with the first vertical rod, and the other end of the first telescopic component is connected with the first supporting rod; the first telescopic component pulls the inner side face of the positioning plate to be tightly attached to the outer side face of the gap bridge guardrail, one end of the second telescopic component is connected with the second vertical rod, the other end of the second telescopic component abuts against the second supporting rod, and a positioning hole is formed in the positioning plate. And a drill bit of the punching mechanism faces the positioning hole in the positioning plate. The invention further discloses a construction method of the punching device. Drill holes do not deviate, and the perpendicularity of the holes is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline bracket installation and construction, and more specifically, to an automatic drilling device for a pipeline bracket and a construction method thereof. Background Art

[0002] With the rapid development of infrastructure, the electromechanical construction period of highways is short, and communication cable lines need to be installed through pipeline support. The pipelines at the bridge crossing of highways are often laid outside the guardrails. The installation quality of the bridge pipeline is related to the normal development and operation of communication equipment and electrical equipment in electromechanical engineering.

[0003] The existing drilling construction for installing pipe brackets often uses hanging baskets to hoist construction workers outside the guardrail, which has the following defects: 1. The construction workers hold the drilling machine on the hanging basket, and the drilling positioning accuracy is poor; 2. There is a risk of the hanging basket falling during the construction process, which may easily cause casualties; 3. Manual drilling construction efficiency is low; 4. The drilling hole is prone to deviation and the verticality of the hole cannot be guaranteed.

[0004] For example, the patent with application number 201920921585.9 discloses a device for punching holes on the outer side of a bridge guard wall, which includes: a work vehicle, a punching mechanism installed on the work vehicle, and a work rod, the lower end of which is fixed by a first hydraulic cylinder installed on the work vehicle, a vertical rod 1 and a vertical rod 2 are provided at the lower end of the work rod, a second hydraulic cylinder is fixedly connected between the vertical rod 1 and the left end of the work rod, a wheel is provided on the inner side of each of the vertical rods 1 and 2, a guide plate is welded on the front end surface of the right part of the work rod, a guide rail is provided on the guide plate, a moving block is provided on the guide rail, a fourth hydraulic cylinder is fixedly provided at the lower end of the moving block, a drilling machine is fixedly connected to the rear end of the piston rod of the fourth hydraulic cylinder, and a third hydraulic cylinder is fixedly provided on the upper end surface of the work rod. Although it avoids the risk of falling of construction workers working on the outside of the guardrail. However, the drilling is prone to deviation, and the verticality of the hole cannot be guaranteed. Summary of the invention

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0006] Another object of the present invention is to provide an automatic drilling device for a pipe bracket, which uses a positioning mechanism to locate the hole positions at the holes on the outer side of the bridge guardrail to avoid deviation during the drilling process, ensure the verticality of the holes, and facilitate the subsequent installation of the pipe bracket.

[0007] In order to achieve these purposes and other advantages according to the present invention, there is provided an automatic perforating device for a pipe bracket, comprising: A crossbar, which is arranged above the bridge guardrail along the width direction of the bridge guardrail; A first vertical rod, which is located on the inner side of the bridge guardrail, one end of the first vertical rod is vertically fixedly connected to one end of the cross rod; A second vertical rod, which is located outside the bridge guardrail, and the second vertical rod is vertically fixedly connected to the other end of the cross rod; A punching mechanism, which is slidably disposed on the second vertical rod; The positioning mechanism comprises a first telescopic member, a second telescopic member, a first support rod, a second support rod and a positioning plate, wherein the first support rod and the second support rod are respectively arranged at the upper end and the lower end of the outer side surface of the positioning plate, one end of the first telescopic member is vertically fixedly connected to the first vertical rod, and the other end is vertically fixedly connected to the first support rod, the first telescopic member pulls the inner side surface of the positioning plate to be close to the outer side surface of the bridge guardrail, one end of the second telescopic member is vertically fixedly connected to the second vertical rod, and the other end abuts against the second support rod, and the positioning plate is provided with array-type positioning holes at intervals, the same vertical column is provided with positioning holes of the same specification, and the same horizontal row is provided with positioning holes of different specifications; Wherein, the drill bit of the punching mechanism faces the positioning hole on the positioning plate.

[0008] Preferably, the automatic perforating device for the pipe bracket further comprises: Four first electric telescopic rods, which are arranged on the outer side of the positioning plate and close to the four vertices of the positioning plate, and the four first electric telescopic rods are synchronously extended and retracted; A pair of limit rods, the upper and lower ends of which are respectively fixedly connected to the telescopic ends of the first electric telescopic rod at the two upper vertices and the two lower vertices; An infrared transmitter is arranged on a limit rod; An infrared receiver, which is arranged on the drill rod of the drilling mechanism; An LED lamp is arranged on the same limiting rod as the infrared emitter; A controller, which is in communication with the infrared transmitter, the infrared receiver, and the LED lamp; Wherein, the telescopic length of the first electric telescopic rod is set as follows: when the punching mechanism drills to a predetermined depth, the infrared receiver arranged on the drill rod in the punching mechanism receives a signal emitted by the infrared transmitter arranged on the limit rod, the controller controls the LED light to light up, and the punching mechanism stops punching.

[0009] Preferably, the first telescopic member and the second telescopic member have the same structure, both comprising a basic arm, a first telescopic arm, a second telescopic arm and a hydraulic cylinder, the first telescopic arm is arranged on the inner side of the basic arm, the second telescopic arm is arranged on the inner side of the first telescopic arm, a first slider is arranged between the basic arm and the first telescopic arm, the first slider is fixedly connected to the first telescopic arm, a second slider is arranged between the first telescopic arm and the second telescopic arm, the second slider is fixedly connected to the second telescopic arm, the output end of the hydraulic cylinder sequentially extends into the first telescopic arm and the second telescopic arm, and is fixedly connected to the first telescopic arm and slidably connected to the second telescopic arm, a first pulley is fixedly arranged at the end of the output end of the hydraulic cylinder, a first steel wire rope is wound around the first pulley, one end of the first steel wire rope is fixedly connected to the inner side of the second telescopic arm, and the other end slides through the second telescopic arm and the first telescopic arm and is fixedly connected to the inner side of the basic arm, a second pulley is fixedly arranged on the first telescopic arm, a second steel wire rope is wound around the second pulley, one end of the second steel wire rope is fixedly connected to the first slider, and the other end slides through the first telescopic arm and is fixedly connected to the outer side of the second telescopic arm.

[0010] Preferably, the automatic perforating device for the pipe bracket further comprises: A linear sliding module, which is arranged on the second vertical rod, and the linear sliding module comprises: a first linear guide, a third slider and a second motor, wherein the first linear guide is fixed on the second vertical rod, the third slider is slidably arranged on the first linear guide, the second motor is arranged at the end of the first linear guide, and the output shaft of the second motor is connected to the third slider to drive the third slider to slide linearly along the vertical direction on the first linear guide; A fixed bracket is fixedly connected to the third slider; a second linear guide is provided on the fixed bracket, the second linear guide is arranged along the length direction of the bridge guardrail, a fourth slider is slidably provided on the second linear guide, the inner side surface of the fourth slider is fixedly connected to the punching mechanism, a third motor is provided at the end of the second linear guide, and the output shaft of the third motor is connected to the fourth slider to drive the fourth slider to slide linearly in a horizontal direction on the second linear guide.

[0011] Preferably, the automatic perforating device for the pipe bracket further comprises: A retractable support frame, one end of which is vertically fixed to the second vertical rod; The first movable wheel is fixedly arranged at the other end of the retractable support frame, and the first movable wheel is in rolling contact with the outer side surface of the bridge guardrail along the length direction of the bridge guardrail.

[0012] Preferably, the automatic perforating device for the pipe bracket further comprises: A power mechanism, comprising a power base with one end disposed on the first vertical rod, and a second electric telescopic rod vertically disposed on the power base; A mounting seat, which is arranged at the end of the second electric telescopic rod; A second moving wheel is arranged on the mounting seat, and the second moving wheel is in rolling contact with the inner side surface of the bridge guardrail along the length direction of the bridge guardrail; a fourth motor, which is disposed on the mounting seat and is used to drive the second moving wheel to roll; The moving mechanism includes a bracket connected to the other end of the power base, a pair of third moving wheels arranged below the bracket, and a pair of third moving wheels driven to roll on the bridge deck inside the bridge guardrail.

[0013] Preferably, the automatic perforating device for the pipe bracket further comprises: A calibration plate, which is arranged on the bridge guardrail; A laser rangefinder is arranged on the power base and is used to measure the distance between the power base and a calibration plate.

[0014] The present invention is further implemented by a construction method of the automatic hole punching device for a pipe bracket, and the construction method of the automatic hole punching device for a pipe bracket comprises the following steps: Step 1: Move the automatic punching device of the pipe bracket to the bridge guardrail to be punched by the moving mechanism, so that the punching mechanism and the positioning mechanism are located on the outside of the bridge guardrail, and the moving mechanism and the power mechanism are located on the inside of the bridge guardrail; Step 2: The calibration plate is placed on the bridge guardrail and in front of the automatic drilling device of the pipe bracket. The laser rangefinder measures the distance to the calibration plate to determine the position of the pipe bracket to be drilled. The construction personnel control the fifth motor to drive the moving mechanism to move on the bridge deck inside the bridge guardrail, and at the same time control the fourth motor to drive the second moving wheel to roll on the inner side of the bridge guardrail along the length direction of the bridge guardrail, driving the first moving wheel to roll on the outer side of the bridge guardrail along the length direction of the bridge guardrail, and then move the drilling mechanism and the positioning mechanism to the position to be drilled. Step 3: The first telescopic member is extended to drive the positioning plate to be close to the outer side of the bridge guardrail at the position to be punched, the second telescopic member is extended to abut against the second support rod, and the controller controls the extension of the multiple first electric telescopic rods to drive a pair of limit rods to move to the predetermined drilling depth indication position; Step 4: The second motor drives the third slider to slide on the first linear guide rail, thereby driving the fixed bracket to move linearly up and down; the third motor drives the fourth slider to slide on the second linear guide rail, thereby driving the punching mechanism to move linearly left and right on the fixed bracket so that the drill bit of the punching mechanism is aligned with the positioning hole of the corresponding specification on the positioning plate; Step 5, the infrared transmitter emits infrared rays, the infrared receiver receives the infrared rays emitted by the infrared transmitter, and drives the drill bit of the punching mechanism to move toward the positioning hole of the corresponding specification to punch holes. When the infrared receiver receives the infrared signal emitted by the infrared transmitter, it indicates that the drill bit of the punching mechanism has reached a predetermined punching depth, the controller controls the LED light to light up, and the operator controls the punching mechanism to stop punching; Step 6: After the drilling is completed, the drilling mechanism is moved by the linear sliding module so that the drill head of the drilling mechanism faces another positioning hole in the same column of the positioning plate, and step 5 is repeated to complete the construction of two holes in the same column of the position to be drilled; Step 7. Repeat the above steps until all holes for installing the pipe brackets on the outside of the bridge guardrail are completed.

[0015] The present invention has at least the following beneficial effects: 1. The automatic drilling device for the pipe bracket of the present invention locates the hole position of the hole on the outer side of the bridge guardrail through a positioning mechanism, so as to avoid the problem that the drill bit shakes a lot during the drilling process, causing the drilling to deviate and the verticality of the hole cannot be guaranteed. The drilling positioning is accurate and the hole verticality is good, which is convenient for the subsequent installation of the pipe bracket.

[0016] 2. The automatic drilling device for a pipe bracket of the present invention is provided with a limit rod, an infrared transmitter on the limit rod, and an infrared receiver on a drill rod on the drilling mechanism. When the infrared receiver provided on the drill rod in the drilling mechanism receives a signal emitted by the infrared transmitter provided on the limit rod, the controller controls the LED light to light up, stops drilling, and controls the drilling depth, so that the drilling depths of the same batch are the same, thereby ensuring the drilling accuracy.

[0017] 3. The automatic punching device for the pipe bracket of the present invention arranges multiple arms evenly on both sides of the hydraulic cylinder in the first telescopic member, and the telescopic balance is achieved. The basic arm and the two telescopic arms are synchronously linked and telescopic, and the structure has good load-bearing performance, so that the positioning mechanism can be driven to move smoothly, with good stability and not easy to shake.

[0018] 4. The linear sliding module of the automatic punching device for the pipe bracket of the present invention realizes the up and down movement of the punching mechanism, and the second linear guide rail and related structures realize the left and right movement of the punching mechanism, thereby realizing the up, down, left and right movement of the punching mechanism. For two holes on the same column of the pipe bracket of the same specification, it is sufficient to fix the device once, and the punching construction at the same position can be realized by moving the punching mechanism to align with the two positioning holes on the same column on the positioning plate, with high punching efficiency.

[0019] 5. The automatic punching device of the pipe bracket of the present invention moves on the bridge deck inside the bridge guardrail through a moving mechanism, thereby ensuring that the cross bar is located in the square of the bridge guardrail instead of being stuck on the bridge guardrail, ensuring that the entire punching device moves smoothly along the length direction of the bridge guardrail.

[0020] 6. The automatic drilling device for the pipe bracket of the present invention can accurately determine the drilling position through the cooperation of the calibration plate and the laser rangefinder.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an automatic hole punching device for a pipe bracket in one technical solution of the present invention; Figure 2 It is a structural schematic diagram of a first telescopic member in another technical solution of the present invention; Figure 3 It is a cross-sectional view of a linear sliding module in another technical solution of the present invention; Figure 4 It is a schematic diagram of the display structure of the positioning mechanism on the outer surface of the guardrail in another technical solution of the present invention; Figure 5 It is a structural schematic diagram of the installation position of the limit rod and the first electric telescopic rod on the positioning plate in another technical solution of the present invention; Reference numerals: 1: punching mechanism, 2: positioning mechanism, 210: first telescopic member, 211: basic arm, 212: first telescopic arm, 213: second telescopic arm, 214: hydraulic cylinder, 215: first slider, 216: second slider, 217: first pulley, 218: first steel wire rope, 219: second pulley, 220: second steel wire rope, 230: fixed bracket, 231: fourth slider, 240: linear sliding module, 241: first linear guide rail, 242: third slider, 243: second motor, 244: ball array, 245: ball holding member, 25 0: second telescopic member, 260: first support rod, 270: second support rod, 280: positioning plate, 290: positioning hole, 3: first vertical rod, 4: second vertical rod, 5: horizontal rod, 6: telescopic support frame, 7: first moving wheel, 8: power mechanism, 800: power base, 810: second electric telescopic rod, 9, mounting seat, 10: second moving wheel, 11: fourth motor, 12: laser rangefinder, 13: bridge guardrail, 14: first electric telescopic rod, 15: limit rod, 16: infrared transmitter, 17: infrared receiver, 18, LED light, 19: moving mechanism. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0024] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0025] like Figures 1 to 5 As shown, the present invention provides an automatic hole punching device for a pipeline bracket, comprising: A crossbar 5, which is arranged above the bridge guardrail 13 along the width direction of the bridge guardrail 13; A first vertical rod 3, which is located on the inner side of the bridge guardrail 13, and one end of the first vertical rod 3 is vertically fixedly connected to one end of the cross rod 5; A second vertical rod 4, which is located outside the bridge guardrail 13, and the second vertical rod 4 is vertically fixedly connected to the other end of the cross rod 5; A punching mechanism 1, which is slidably disposed on the second vertical rod 4; The positioning mechanism 2 comprises a first telescopic member 210, a second telescopic member 250, a first support rod 260, a second support rod 270 and a positioning plate 280. The upper end and the lower end of the outer side surface of the positioning plate 280 are respectively provided with the first support rod 260 and the second support rod 270. One end of the first telescopic member 210 is vertically fixedly connected to the first vertical rod 3, and the other end is vertically fixedly connected to the first support rod 260. The first telescopic member 210 pulls the inner side surface of the positioning plate 280 to be close to the outer side surface of the bridge guardrail 13. One end of the second telescopic member 250 is vertically fixedly connected to the second vertical rod 4, and the other end abuts against the second support rod 270. The positioning plate 280 is provided with array-type positioning holes 290 at intervals. Positioning holes of the same specification are provided in the same vertical column, and positioning holes of different specifications are provided in the same horizontal row. The drill bit of the punching mechanism 1 faces the positioning hole 290 on the positioning plate 280 .

[0026] like Figure 1 As shown, the height requirement of the crossbar 5 must be met so that the first telescopic member 210 does not contact the top of the bridge guardrail 13, avoiding friction between the first telescopic member 210 and the bridge guardrail 13, which not only affects its telescopic movement toward the outside of the bridge guardrail 13, but also makes the punching device and the bridge guardrail 13 easily damaged due to friction during the movement.

[0027] A first vertical rod 3, which is located on the inner side of the bridge guardrail 13 and does not contact the inner side surface of the bridge guardrail 13; A second vertical rod 4, which is located outside the bridge guardrail 13 and does not contact the outer side surface of the bridge guardrail 13; The drilling mechanism 1 includes a drill rod and a drill bit. The drill rod can be slidably arranged on the second vertical rod 4. The drill bit is connected to the drill rod. The drilling mechanism 1 can be an electric hammer impact drill or an electric drill. The model is not limited as long as it can realize electric control drilling. The first support rod 260 and the second support rod 270 are respectively arranged at the upper and lower ends of the outer side surface of the positioning plate 280. The first support rod 260, the second support rod 270 and the positioning plate 280 can be connected in any rigid connection, and the connecting piece between the two does not pass through the inner side surface of the positioning plate 280. The first support rod 260 and the first telescopic member 210 can also be connected in any rigid connection.

[0028] The material of the crossbar 5, the first vertical bar 3 and the second vertical bar 4 is not limited, and can be steel or other metal structures, which can stably support the structure set thereon, and the three cooperate to ensure the stability of the entire punching device. The positioning plate 280, the first support rod 260, and the second support rod 270 are also made of metal to ensure their positioning accuracy and load-bearing capacity.

[0029] In the above technical solution, when performing the punching operation, after determining the punching position, the operator can stand on the inner side of the bridge guardrail 13 at the punching position, control the first vertical rod 3, the cross bar 5 is located above the bridge guardrail 13, and the second vertical rod 4 is located on the outer side of the bridge guardrail 13. The second vertical rod 4 has good load-bearing performance to stably carry the punching mechanism 1, and the inner side surface of the positioning plate 280 is pulled close to the outer side surface of the bridge guardrail 13 at the punching position by the first telescopic member 210. The lower end of the outer side surface of the bridge guardrail 13 is supported by the second telescopic member 250, so that the upper and lower ends of the positioning plate 280 are both close to the outer side surface of the bridge guardrail 13, and the drilling position is well positioned. At this time, the drilling mechanism 1 is turned on, so that the drill bit of the drilling mechanism 1 is directed toward the positioning hole 290 on the positioning plate 280, so that the drill bit only drills vertically on the outer side surface of the bridge guardrail 13 within the range of the positioning hole 290, avoiding the problem of large drilling shaking range during the drilling process, causing the drilling to deviate and fail to ensure the verticality of the drilling. The drilling positioning is accurate, the hole verticality is good, and the subsequent installation of the pipeline bracket is convenient.

[0030] In another technical solution, Figure 1 and 5 As shown, the automatic drilling device for the pipeline bracket also includes: Four first electric telescopic rods 14 are arranged on the outer side of the positioning plate 280 and close to the four vertices of the positioning plate 280. The four first electric telescopic rods 14 are synchronously extended and retracted; A pair of limit rods 15, the upper and lower ends of which are respectively fixedly connected to the telescopic ends of the first electric telescopic rod 14 at the two upper vertices and the two lower vertices; An infrared transmitter 16, which is arranged on a limit rod; An infrared receiver 17, which is arranged on the drill rod of the drilling mechanism 1; An LED lamp 18 is disposed on the same limiting rod as the infrared emitter 16; A controller, which is in communication with the infrared transmitter 16, the infrared receiver 17, and the LED lamp 18; Wherein, the telescopic length of the first electric telescopic rod 14 is set as follows: when the punching mechanism 1 drills a hole to a predetermined depth, the infrared receiver arranged on the drill rod in the punching mechanism receives a signal emitted by the infrared transmitter arranged on the limit rod, and the controller controls the LED light 18 to light up, and the punching mechanism 1 stops punching.

[0031] In the above technical solution, before drilling, the first electric telescopic rod 14 is extended and retracted according to a predetermined depth to drive the limit rod 15 to be a certain distance away from the outer side of the positioning plate 280. During the drilling process of the punching mechanism 1, as the drill bit penetrates into the positioning hole 290, the controller detects in real time the infrared signal emitted from the infrared transmitter 16 and the infrared receiver 17 receiving the infrared signal. When the infrared receiver 17 receives the signal emitted by the infrared transmitter 16, the controller controls the LED light 18 to light up, and the punching mechanism 1 stops drilling. Among them, after stopping drilling, if the distance from the end of the drill bit on the punching mechanism 1 (the end facing the positioning plate) to the position where the infrared receiver 17 on the drill rod in the punching mechanism receives infrared rays is L1, the sum of the initial length and the extension length of the first electric telescopic rod 14 is L2, the distance from the connection between the limiting rod 15 provided with the infrared transmitter 16 and the first electric telescopic rod 14 to the position where the infrared transmitter 16 emits infrared rays is L3, and the thickness of the positioning plate is D, then the predetermined depth = L1-(L2+L3+D). The punching depth of the punching mechanism 1 is limited by a pair of limiting rods 15 to ensure the consistency of the punching depth of the same batch.

[0032] In another technical solution, Figure 2 As shown, the structures of the first telescopic member 210 and the second telescopic member 250 are the same. Taking the first telescopic member 210 as an example, it includes a basic arm 211, a first telescopic arm 212, a second telescopic arm 213 and a hydraulic cylinder 214. The first telescopic arm 212 is arranged on the inner side of the basic arm 211, and the second telescopic arm 213 is arranged on the inner side of the first telescopic arm 212. A first slider 215 is arranged between the basic arm 211 and the first telescopic arm 212, and the first slider 215 is fixedly connected to the first telescopic arm 212. A second slider 215 is arranged between the first telescopic arm 212 and the second telescopic arm 213. The second slider 216 is fixedly connected to the second telescopic arm 213. The output end of the hydraulic cylinder 214 extends into the first telescopic arm 212 and the second telescopic arm 213 in sequence, and is fixedly connected to the first telescopic arm 212 and slidably connected to the second telescopic arm 213. A first pulley 217 is fixedly provided at the end of the output end of the hydraulic cylinder 214. A first steel wire rope 218 is wound around the first pulley 217. One end of the first steel wire rope 218 is fixedly connected to the inner side of the second telescopic arm 213, and the other end slides through the second telescopic arm 213 and the first telescopic arm 212 and is fixedly connected to the inner side of the basic arm 211. A second pulley 219 is fixedly provided on the first telescopic arm 212. A second steel wire rope 220 is wound around the second pulley 219. One end of the second steel wire rope 220 is fixedly connected to the first slider 215, and the other end slides through the first telescopic arm 212 and is fixedly connected to the outer side of the second telescopic arm 213.

[0033] In the above technical solution, when the first telescopic member is in the process of extension, the hydraulic cylinder 214 drives the first telescopic arm 212 and the first pulley 217 to extend, and the first pulley 217 drives the second telescopic arm 213 to extend synchronously through the first steel wire rope 218; when contracting, the hydraulic cylinder 214 drives the first telescopic arm 212 and the second pulley 219 to contract, and the second pulley 219 drives the second telescopic arm 213 to contract synchronously through the second steel wire rope 220. By equilibrating the basic arm 211, the first telescopic arm 212 and the second telescopic arm 213 on both sides of the hydraulic cylinder, the two telescopic arms are synchronously linked to extend and retract, and the two telescopic arms are driven to extend and retract through the pulley and the steel wire rope, and the telescopic stability is good. When driving the positioning mechanism 2 to extend and retract, it can move smoothly and is not easy to shake. The overall structural load-bearing and stability of the first telescopic member 210 have obvious advantages compared with the use of a hydraulic cylinder alone. If a hydraulic cylinder or a simple electric telescopic rod is used alone to drive the positioning mechanism to extend and retract, firstly, the contact area between the hydraulic cylinder and the first support rod 260 is much smaller than the contact area between the first telescopic member 210 and the first support rod 260. In the process of driving the positioning mechanism 2 to move, the positioning plate 280 is easily tilted and shaken, so that the positioning plate 280 cannot be horizontally and stably attached to the outer surface of the bridge guardrail 13; secondly, its load-bearing performance is worse than that of the first telescopic member 210. When the positioning plate 280 is driven to be suspended outside the bridge guardrail, due to the downward gravity pulling effect of the positioning plate 280, the electric telescopic rod is easily bent after a long time of use, and the service life and positioning accuracy will be greatly reduced.

[0034] In another technical solution, Figure 1 and 3 As shown, the automatic drilling device for the pipeline bracket also includes: A linear sliding module 240 is provided on the second vertical rod 4. The linear sliding module 240 comprises: a first linear guide rail 241, a third slider 242 and a second motor 243. The first linear guide rail 241 is fixed on the second vertical rod 4. The third slider 242 is slidably provided on the first linear guide rail 241. The second motor 243 is provided at the end of the first linear guide rail 241. The output shaft of the second motor 243 is connected to the third slider 242 to drive the third slider 242 to slide linearly on the first linear guide rail 241 along the vertical direction. A fixed bracket 230 is fixedly connected to the third slider 242; a second linear guide is provided on the fixed bracket 230, and the second linear guide is arranged along the length direction of the bridge guardrail; a fourth slider is slidably provided on the second linear guide, and the inner side surface of the fourth slider is fixedly connected to the punching mechanism; a third motor is provided at the end of the second linear guide, and the output shaft of the third motor is connected to the fourth slider to drive the fourth slider to slide linearly in the horizontal direction on the second linear guide.

[0035] In the above technical solution, the linear sliding module 240 is a four-row ball guide rail. Figure 3 As shown, four rows of ball arrays 244 and ball holding members 245 are provided between the first linear guide 241 and the third slider 242. When the second motor drives the third slider 242 to move on the first linear guide 241, the third slider 242 and the first linear guide 241 are subjected to rolling friction by the balls, so as to achieve high-precision and high-rigidity linear motion of the third slider 242 on the first linear guide 241. The second linear guide and the fourth slider structure provided on the fixed bracket 230, and the third motor driving the fourth slider to move linearly on the second linear guide are the same as the structure and driving principle of the above-mentioned linear motion module. Among them, the punching mechanism 1 is fixedly connected to the inner side of the fourth slider, and the outer side of the fourth slider moves horizontally and linearly on the second linear guide rail. The fixed bracket 230 is fixedly connected to the inner side of the third slider 242, and the outer side of the third slider moves vertically and linearly on the first linear guide rail to realize the up and down, left and right linear sliding of the punching mechanism 1. When punching holes in the same vertical column of the positioning holes on the positioning plate, it is only necessary to move the punching mechanism 1 in the vertical direction. When punching holes in the same horizontal row of the positioning plate, it is only necessary to move the punching mechanism 1 in the horizontal direction. For two holes in the same column of the same specification of pipe brackets, it is sufficient to fix the device once. By moving the punching mechanism 1 to align with the two positioning holes in the same column of the positioning plate, the punching construction at the same position can be realized. There is no need to move the entire punching device, and the punching efficiency is high.

[0036] In another technical solution, Figure 1 As shown, the automatic drilling device for the pipeline bracket also includes: A retractable support frame 6, one end of which is vertically fixed to the second vertical rod 4, and the other end of which is retractable toward the outer side of the bridge guardrail 13; The first movable wheel 7 is fixedly mounted on the other end of the retractable support frame 6 , and the first movable wheel 7 is in rolling contact with the outer side surface of the bridge guardrail 13 along the length direction of the bridge guardrail 13 .

[0037] In the above technical solution, the length of the retractable support frame 6 is adjusted to ensure that the first moving wheel 7 rolls in contact with the outer side of the bridge guardrail 13. The retractable support frame 6 can be a common electric telescopic rod, which can drive the first moving wheel 7 to contact with the outer side of the bridge guardrail 13.

[0038] In another technical solution, Figure 1 As shown, the automatic drilling device for the pipeline bracket also includes: A power mechanism 8, comprising a power base 800 with one end disposed on the first vertical rod 3, and a second electric telescopic rod 810 vertically disposed on the power base 800; A mounting seat 9, which is provided at the end of the second electric telescopic rod 810; A second moving wheel 10, which is disposed on the mounting seat 9, and the second moving wheel 10 is in rolling contact with the inner side surface of the bridge guardrail 13 along the length direction of the bridge guardrail 13; a fourth motor 11, which is disposed on the mounting seat 9 and is used to drive the second moving wheel 10 to roll; The moving mechanism 19 includes a bracket connected to the other end of the power base 800, a pair of third moving wheels arranged below the bracket, and a fifth motor driving the pair of third moving wheels to roll on the bridge deck inside the bridge guardrail 13.

[0039] In the above technical scheme, in order to realize the automation of the punching device, the fifth motor drives the moving mechanism 19 to roll on the bridge deck inside the bridge guardrail 13, driving the entire punching device to move on the inner and outer sides of the bridge guardrail 13 along the length direction of the bridge guardrail 13, and the second electric telescopic rod 810 is extended and retracted so that the second moving wheel 10 rolls in contact with the inner side surface inside the bridge guardrail 13, and the fourth motor drives the second moving wheel 10 to roll in contact with the inner side surface of the bridge guardrail 13, and the third moving wheel, the first moving wheel, and the second moving wheel move synchronously on the bridge deck inside the bridge guardrail 13, the outer side surface of the bridge guardrail 13, and the inner side surface of the bridge guardrail 13 respectively, so that the overall punching device can be automatically and smoothly moved to the predetermined punching position, further saving manpower and improving construction efficiency.

[0040] In another technical solution, Figure 1 As shown, the automatic drilling device for the pipeline bracket also includes: A calibration plate, which is arranged on the bridge guardrail 13; The laser rangefinder 12 is arranged on the power base 800 and is used to measure the distance between the power base 800 and the calibration plate.

[0041] In the above technical solution, the engineer measures the elevation of the pipe bracket support surface and the elevation of the pipe bracket hole distance according to the height of the pipe from the top surface of the bridge guardrail indicated in the design drawing, and marks the position of the punching position vertically extending to the position on the bridge guardrail 13. The calibration plate is set by the construction personnel on the bridge guardrail 13 and is located in front of the punching device. The distance between it and the calibration plate is determined by the laser rangefinder 12 to determine whether the punching device has moved to the predetermined punching position (i.e., the mark position), until the punching device moves to the predetermined punching position, and then the positioning plate 280 is moved to the determined punching position for positioning. For example, if a hole needs to be punched every meter, the calibration plate is placed at the third predetermined punching position and vertically extended to the bridge guardrail for marking. When the position of the first hole is punched, the punching device moves forward, and the laser rangefinder 12 thereon determines whether the distance between it and the calibration plate has moved to the position of the second hole. According to the elevation of the pipe bracket support surface, it can be determined by controlling the vertical linear movement of the punching mechanism 1.

[0042] This technical solution may also include the following technical details to better achieve the technical effect: A construction method of an automatic drilling device for a pipeline bracket, comprising: Step 1: Move the automatic drilling device of the pipe bracket to the bridge guardrail 13 to be drilled by the moving mechanism 19, so that the drilling mechanism 1 and the positioning mechanism 2 are located on the outside of the bridge guardrail 13, and the moving mechanism 19 and the power mechanism 8 are located on the inside of the bridge guardrail 13; Step 2: The calibration plate is placed on the bridge guardrail 13 and in front of the automatic drilling device of the pipe bracket. The laser rangefinder 12 measures the distance to the calibration plate to determine the position of the pipe bracket to be drilled. The construction personnel control the fifth motor to drive the moving mechanism 19 to move on the bridge deck inside the bridge guardrail 13, and at the same time control the fourth motor 11 to drive the second moving wheel 10 to roll on the inner side of the bridge guardrail 13 along the length direction of the bridge guardrail 13, driving the first moving wheel 7 to roll on the outer side of the bridge guardrail 13 along the length direction of the bridge guardrail 13, and then move the drilling mechanism 1 and the positioning mechanism 2 to the position to be drilled. Step 3: The first telescopic member 210 is extended and retracted, and the second telescopic member 250 is extended to drive the positioning plate 280 to be close to the outer side of the bridge guardrail 13 at the position to be punched, and the controller controls the multiple first electric telescopic rods 14 to extend and drive a pair of limit rods 15 to move to the predetermined drilling depth indication position; Step 4: The second motor 243 drives the third slider 242 to slide on the first linear guide rail 241, thereby driving the fixed bracket 230 to move linearly up and down. The third motor drives the fourth slider to slide on the second linear guide rail, thereby driving the punching mechanism 1 to move linearly left and right on the fixed bracket so that the drill bit of the punching mechanism 1 is aligned with the positioning hole 290 of the corresponding specification on the positioning plate 280. Step 5: The infrared transmitter 16 transmits infrared rays, and the infrared receiver 17 receives the infrared rays emitted by the infrared transmitter 16, and drives the drill bit of the punching mechanism 1 to move toward the positioning hole 290 of the corresponding specification to punch holes. When the infrared receiver 17 receives the infrared signal emitted by the infrared transmitter 16, it indicates that the drill bit of the punching mechanism 1 has reached a predetermined punching depth, and the controller controls the LED light 18 to light up, and the operator controls the punching mechanism 1 to stop punching. Step 6: After the drilling is completed, the drilling mechanism 1 is moved by the linear sliding module 240 so that the drill head of the drilling mechanism 1 faces another positioning hole 290 in the same column on the positioning plate 280, and step 5 is repeated to complete the construction of two holes in the same column at the position to be drilled; Step 7: Repeat the above steps until all holes for installing the pipe brackets on the outer side of the bridge guardrail 13 are constructed.

[0043] In the above technical solution, the moving mechanism 19 is moved on the bridge deck of the bridge guardrail 13, which can be controlled electrically or operated by construction personnel. There is no need for operators to hold the entire device, which reduces the workload of construction personnel. The calibration plate and the laser rangefinder 12 cooperate with each other to accurately locate the punching position, and the positioning mechanism 2 is used to position the punching position, so that the drill bit of the punching mechanism 1 drills in the positioning hole 290 on the positioning plate 280, avoiding the large range of shaking of the drill bit during the drilling process, causing the drilling to be offset and unable to ensure the verticality of the drilling. The drilling positioning is accurate and the hole verticality is good, which is convenient for the subsequent installation of the pipeline bracket. Since the pipeline bracket on the conventional bridge guardrail 13 is a right-angled triangle structure, it is necessary to drill two holes on the same vertical line on the outer surface of the bridge guardrail 13 to fix the right-angled triangle bracket. By setting the fixed bracket 230 of the punching mechanism 1 to be slidably set on the second vertical rod 4 to realize its vertical up and down linear movement, the device can be fixed once for two holes on the same column of the same specification of the pipe bracket to realize the construction of the two holes and then move the punching device forward, thereby improving the efficiency of the punching construction. For pipe brackets of different specifications, by setting horizontal left and right linear moving tracks on the fixed bracket 230, the left and right linear movement of the punching mechanism 1 can be realized to meet the construction of holes of different specifications. By setting a pair of limit rods 15 on the positioning plate 280, and setting an infrared transmitter 16 on the limit rod, when the infrared receiver 17 set on the drill rod in the punching mechanism 1 receives the infrared signal emitted by the infrared transmitter 16, the controller controls the LED light 18 to light up, and the punching mechanism 1 stops punching. The punching depth is controlled so that the punching depth of the same batch is the same, the punching accuracy is guaranteed, and the subsequent installation of the pipe bracket is convenient.

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following embodiments are provided for illustration: like Figure 1-5 As shown, a pipe bracket automatic punching device comprises: A crossbar 5, which is arranged above the bridge guardrail 13 along the width direction of the bridge guardrail 13; A first vertical rod 3, which is located on the inner side of the bridge guardrail 13, and one end of the first vertical rod 3 is vertically fixedly connected to one end of the cross rod 5; A second vertical rod 4, which is located outside the bridge guardrail 13, and the second vertical rod 4 is vertically fixedly connected to the other end of the cross rod 5; A punching mechanism 1, which is slidably disposed on the second vertical rod 4; The positioning mechanism 2 comprises a first telescopic member 210, a second telescopic member 250, a first support rod 260, a second support rod 270 and a positioning plate 280, wherein the upper end and the lower end of the outer side surface of the positioning plate 280 are respectively provided with the first support rod 260 and the second support rod 270, one end of the first telescopic member 210 is vertically fixedly connected to the first vertical rod 3, and the other end is vertically fixedly connected to the first support rod 260, the first telescopic member 210 pulls the inner side surface of the positioning plate 280 to be close to the outer side surface of the bridge guardrail 13, one end of the second telescopic member 250 is vertically fixedly connected to the second vertical rod 4, and the other end abuts against the second support rod 270, and array-type positioning holes 290 are arranged on the positioning plate 280 at intervals, the same vertical column is provided with positioning holes of the same specifications, and the same horizontal row is provided with positioning holes of different specifications; the first telescopic member 210 and the second telescopic member 250 have the same structure, with the first telescopic member 2 10 as an example, it includes a basic arm 211, a first telescopic arm 212, a second telescopic arm 213 and a hydraulic cylinder 214, the first telescopic arm 212 is arranged on the inner side of the basic arm 211, the second telescopic arm 213 is arranged on the inner side of the first telescopic arm 212, a first slider 216 is arranged between the basic arm 211 and the first telescopic arm 212, a second slider 216 is arranged between the first telescopic arm 212 and the second telescopic arm 213, a first pulley 217 is arranged at the end of the hydraulic cylinder 214, a first steel wire rope 218 is wound around the first pulley 217, two ends of the first steel wire rope 218 are respectively connected to the inner sides of the basic arm 211 and the second telescopic arm 213, a second pulley 219 is arranged on the first telescopic arm 212, a second steel wire rope 220 is wound around the second pulley 219, and two ends of the second steel wire rope 220 are respectively connected to the outer sides of the first slider 215 and the second telescopic arm 213; Wherein, the drill bit of the punching mechanism 1 faces the positioning hole 290 on the positioning plate 280; Four first electric telescopic rods 14 are arranged on the outer side of the positioning plate 280 and close to the four vertices of the positioning plate 280. The four first electric telescopic rods 14 are synchronously extended and retracted; A pair of limit rods 15, the upper and lower ends of which are respectively fixedly connected to the telescopic ends of the first electric telescopic rod 14 at the two upper vertices and the two lower vertices; An infrared transmitter 16, which is arranged on a limit rod; An infrared receiver 17, which is arranged on the drill rod of the drilling mechanism 1; An LED lamp 18 is disposed on the same limiting rod as the infrared emitter 16; A controller, which is in communication with the infrared transmitter 16, the infrared receiver 17, and the LED lamp 18; The telescopic length of the first electric telescopic rod 14 is set such that when the punching mechanism 1 drills to a predetermined depth, the infrared receiver 17 provided on a pair of limit rods 15 and the drilling rod in the punching mechanism 1 receives an infrared signal emitted by the infrared transmitter 16, and the controller controls the LED light 18 to light up, and the punching mechanism 1 stops punching; A linear sliding module 240 is provided on the second vertical rod 4. The linear sliding module 240 comprises: a first linear guide rail 241, a third slider 242 and a second motor 243. The first linear guide rail 241 is fixed on the second vertical rod 4. The third slider 242 is slidably provided on the first linear guide rail 241. The second motor 243 is provided at the end of the first linear guide rail 241. The output shaft of the second motor 243 is connected to the third slider 242 to drive the third slider 242 to slide linearly on the first linear guide rail 241 along the vertical direction. A fixed bracket 230, which is fixedly connected to the third slider 242; a second linear guide is provided on the fixed bracket 230, the second linear guide is arranged along the length direction of the bridge guardrail, a fourth slider is slidably provided on the second linear guide, the inner side surface of the fourth slider is fixedly connected to the punching mechanism, a third motor is provided at the end of the second linear guide, and the output shaft of the third motor is connected to the fourth slider to drive the fourth slider to slide linearly along the horizontal direction on the second linear guide; A retractable support frame 6, one end of which is vertically fixed to the second vertical rod 4, and the other end of which is retractable toward the outer side of the bridge guardrail 13; A first moving wheel 7, which is fixedly mounted at the other end of the retractable support frame 6, and the first moving wheel 7 is in rolling contact with the outer side surface of the bridge guardrail 13 along the length direction of the bridge guardrail 13; A power mechanism 8, comprising a power base 810 with one end disposed on the first vertical rod 3, and a second electric telescopic rod 810 vertically disposed on the power base 810; A mounting seat 9, which is provided at the end of the second electric telescopic rod 810; A second moving wheel 10, which is disposed on the mounting seat 9, and the second moving wheel 10 is in rolling contact with the inner side surface of the bridge guardrail 13 along the length direction of the bridge guardrail 13; a fourth motor 11, which is disposed on the mounting seat 9 and is used to drive the second moving wheel 10 to roll; The moving mechanism 19 includes a bracket connected to the other end of the power base 810, a pair of third moving wheels arranged below the bracket, and a fifth motor driving the pair of third moving wheels to roll on the bridge deck inside the bridge guardrail 13; A calibration plate, which is arranged on the bridge guardrail 13; The laser rangefinder 12 is arranged on the power base 800 and is used to measure the distance between the power base 800 and the calibration plate.

[0045] The construction method of the automatic drilling device for the pipe bracket in this embodiment includes the following steps: Step 1: Move the automatic drilling device of the pipe bracket to the bridge guardrail 13 to be drilled by the moving mechanism 19, so that the drilling mechanism 1 and the positioning mechanism 2 are located on the outside of the bridge guardrail 13, and the moving mechanism 19 and the power mechanism 8 are located on the inside of the bridge guardrail 13; Step 2: The calibration plate is placed on the bridge guardrail 13 and in front of the automatic drilling device of the pipe bracket. The laser rangefinder 12 measures the distance to the calibration plate to determine the position of the pipe bracket to be drilled. The construction personnel control the fifth motor to drive the moving mechanism 19 to move on the bridge deck inside the bridge guardrail 13, and at the same time control the fourth motor 11 to drive the second moving wheel 10 to roll on the inner side of the bridge guardrail 13 along the length direction of the bridge guardrail 13, driving the first moving wheel 7 to roll on the outer side of the bridge guardrail 13 along the length direction of the bridge guardrail 13, and then move the drilling mechanism 1 and the positioning mechanism 2 to the position to be drilled. Step 3: The first telescopic member 210 is extended to drive the positioning plate 280 to be close to the outer side of the bridge guardrail 13 at the position to be punched, and the second telescopic member 250 is extended to abut against the second support rod 270. The controller controls the multiple first electric telescopic rods 14 to extend and drive a pair of limit rods 15 to move to the predetermined drilling depth indication position; Step 4: The second motor 243 drives the third slider 242 to slide on the first linear guide rail 241, thereby driving the fixed bracket 230 to move linearly up and down. The third motor drives the fourth slider to slide on the second linear guide rail, thereby driving the punching mechanism 1 to move linearly left and right on the fixed bracket so that the drill bit of the punching mechanism is aligned with the positioning hole of the corresponding specification on the positioning plate. Step 5: The infrared transmitter 16 transmits infrared rays, and the infrared receiver 17 receives the infrared rays emitted by the infrared transmitter 16, and drives the drill bit of the punching mechanism 1 to move toward the positioning hole 290 of the corresponding specification to punch holes. When the infrared receiver 17 receives the infrared signal emitted by the infrared transmitter 16, it indicates that the drill bit of the punching mechanism 1 has reached the predetermined punching depth, and the controller controls the LED light 18 to light up, and the operator controls the punching mechanism 1 to stop punching. Step 6: After the drilling is completed, the drilling mechanism 1 is moved by the linear sliding module 240 so that the drill head of the drilling mechanism 1 faces another positioning hole 290 in the same column on the positioning plate 280, and step 5 is repeated to complete the construction of two holes in the same column at the position to be drilled; Step 7: Repeat the above steps until all holes for installing the pipe brackets on the outer side of the bridge guardrail 13 are constructed.

[0046] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the automatic perforating device for pipe brackets of the present invention are obvious to those skilled in the art.

[0047] Although the technical solution of the present invention has been disclosed as above, it is not limited to the applications listed in the specification and implementation methods. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Automatic punching device for pipe brackets, It is characterized in that include: A crossbar, which is arranged above the bridge guardrail along the width direction of the bridge guardrail; A first vertical rod, which is located on the inner side of the bridge guardrail, one end of the first vertical rod is vertically fixedly connected to one end of the cross rod; A second vertical rod, which is located outside the bridge guardrail, and the second vertical rod is vertically fixedly connected to the other end of the cross rod; A punching mechanism, which is slidably disposed on the second vertical rod; The positioning mechanism comprises a first telescopic member, a second telescopic member, a first support rod, a second support rod and a positioning plate, wherein the first support rod and the second support rod are respectively arranged at the upper end and the lower end of the outer side surface of the positioning plate, one end of the first telescopic member is vertically fixedly connected to the first vertical rod, and the other end is vertically fixedly connected to the first support rod, the first telescopic member pulls the inner side surface of the positioning plate to be close to the outer side surface of the bridge guardrail, one end of the second telescopic member is vertically fixedly connected to the second vertical rod, and the other end abuts against the second support rod, and the positioning plate is provided with array-type positioning holes at intervals, the same vertical column is provided with positioning holes of the same specification, and the same horizontal row is provided with positioning holes of different specifications; Wherein, the drill bit of the punching mechanism faces the positioning hole on the positioning plate.

2. The automatic drilling device for pipe brackets according to claim 1, It is characterized in that Also includes: Four first electric telescopic rods, which are arranged on the outer side of the positioning plate and close to the four vertices of the positioning plate, and the four first electric telescopic rods are synchronously extended and retracted; A pair of limit rods, the upper and lower ends of which are respectively fixedly connected to the telescopic ends of the first electric telescopic rod at the two upper vertices and the two lower vertices; An infrared transmitter is arranged on a limit rod; An infrared receiver, which is arranged on the drill rod of the drilling mechanism; An LED lamp is arranged on the same limiting rod as the infrared emitter; A controller, which is in communication with the infrared transmitter, the infrared receiver, and the LED lamp; Wherein, the telescopic length of the first electric telescopic rod is set as follows: when the punching mechanism drills to a predetermined depth, the infrared receiver arranged on the drill rod in the punching mechanism receives a signal emitted by the infrared transmitter arranged on the limit rod, the controller controls the LED light to light up, and the punching mechanism stops punching.

3. The automatic drilling device for pipe brackets according to claim 2, It is characterized in that The first telescopic member and the second telescopic member have the same structure, and both include a basic arm, a first telescopic arm, a second telescopic arm and a hydraulic cylinder. The first telescopic arm is arranged on the inner side of the basic arm, and the second telescopic arm is arranged on the inner side of the first telescopic arm. A first slider is arranged between the basic arm and the first telescopic arm, and the first slider is fixedly connected to the first telescopic arm. A second slider is arranged between the first telescopic arm and the second telescopic arm, and the second slider is fixedly connected to the second telescopic arm. The output end of the hydraulic cylinder sequentially extends into the first telescopic arm and the second telescopic arm, and is fixedly connected to the first telescopic arm and slidably connected to the second telescopic arm. A first pulley is fixedly arranged at the end of the output end of the hydraulic cylinder, and a first steel wire rope is wound around the first pulley. One end of the first steel wire rope is fixedly connected to the inner side of the second telescopic arm, and the other end slides through the second telescopic arm and the first telescopic arm and is fixedly connected to the inner side of the basic arm. A second pulley is fixedly arranged on the first telescopic arm, and a second steel wire rope is wound around the second pulley. One end of the second steel wire rope is fixedly connected to the first slider, and the other end slides through the first telescopic arm and is fixedly connected to the outer side of the second telescopic arm.

4. The automatic drilling device for pipe brackets according to claim 3, It is characterized in that Also includes: A linear sliding module, which is arranged on the second vertical rod, and the linear sliding module comprises: a first linear guide, a third slider and a second motor, wherein the first linear guide is fixed on the second vertical rod, the third slider is slidably arranged on the first linear guide, the second motor is arranged at the end of the first linear guide, and the output shaft of the second motor is connected to the third slider to drive the third slider to slide linearly along the vertical direction on the first linear guide; A fixed bracket is fixedly connected to the third slider; a second linear guide is provided on the fixed bracket, the second linear guide is arranged along the length direction of the bridge guardrail, a fourth slider is slidably provided on the second linear guide, the inner side surface of the fourth slider is fixedly connected to the punching mechanism, a third motor is provided at the end of the second linear guide, and the output shaft of the third motor is connected to the fourth slider to drive the fourth slider to slide linearly in a horizontal direction on the second linear guide.

5. The automatic drilling device for pipe brackets according to claim 4, It is characterized in that Also includes: A retractable support frame, one end of which is vertically fixed to the second vertical rod, and the other end of which is retractable toward the outer side of the bridge guardrail; The first movable wheel is fixedly arranged at the other end of the retractable support frame, and the first movable wheel is in rolling contact with the outer side surface of the bridge guardrail along the length direction of the bridge guardrail.

6. The automatic drilling device for pipe brackets according to claim 5, It is characterized in that Also includes: A power mechanism, comprising a power base with one end disposed on the first vertical rod, and a second electric telescopic rod vertically disposed on the power base; A mounting seat, which is arranged at the end of the second electric telescopic rod; A second moving wheel is arranged on the mounting seat, and the second moving wheel is in rolling contact with the inner side surface of the bridge guardrail along the length direction of the bridge guardrail; a fourth motor, which is disposed on the mounting seat and is used to drive the second moving wheel to roll; The moving mechanism includes a bracket connected to the other end of the power base, a pair of third moving wheels arranged below the bracket, and a fifth motor driving the pair of third moving wheels to roll on the bridge deck inside the bridge guardrail.

7. The automatic drilling device for pipe brackets according to claim 6, It is characterized in that Also includes: A calibration plate, which is arranged on the bridge guardrail; A laser rangefinder is arranged on the power base and is used to measure the distance between the power base and a calibration plate.

8. A construction method of the automatic drilling device for a pipe bracket as claimed in claim 7, It is characterized in that The steps include: Step 1: Move the automatic punching device of the pipe bracket to the bridge guardrail to be punched by the moving mechanism, so that the punching mechanism and the positioning mechanism are located on the outside of the bridge guardrail, and the moving mechanism and the power mechanism are located on the inside of the bridge guardrail; Step 2: The calibration plate is placed on the bridge guardrail and in front of the automatic drilling device of the pipe bracket. The laser rangefinder measures the distance to the calibration plate to determine the position of the pipe bracket to be drilled. The construction personnel control the fifth motor to drive the moving mechanism to move on the bridge deck inside the bridge guardrail, and at the same time control the fourth motor to drive the second moving wheel to roll on the inner side of the bridge guardrail along the length direction of the bridge guardrail, driving the first moving wheel to roll on the outer side of the bridge guardrail along the length direction of the bridge guardrail, and then move the drilling mechanism and the positioning mechanism to the position to be drilled. Step 3: The first telescopic member is extended to drive the positioning plate to be close to the outer side of the bridge guardrail at the position to be punched, the second telescopic member is extended to abut against the second support rod, and the controller controls the extension of the multiple first electric telescopic rods to drive a pair of limit rods to move to the predetermined drilling depth indication position; Step 4: The second motor drives the third slider to slide on the first linear guide rail, thereby driving the fixed bracket to move linearly up and down; the third motor drives the fourth slider to slide on the second linear guide rail, thereby driving the punching mechanism to move linearly left and right on the fixed bracket so that the drill bit of the punching mechanism is aligned with the positioning hole of the corresponding specification on the positioning plate; Step 5, the infrared transmitter emits infrared rays, the infrared receiver receives the infrared rays emitted by the infrared transmitter, and drives the drill bit of the punching mechanism to move toward the positioning hole of the corresponding specification to punch holes. When the infrared receiver receives the infrared signal emitted by the infrared transmitter, it indicates that the drill bit of the punching mechanism has reached a predetermined punching depth, the controller controls the LED light to light up, and the operator controls the punching mechanism to stop punching; Step 6: After the drilling is completed, the drilling mechanism is moved by the linear sliding module so that the drill head of the drilling mechanism faces another positioning hole in the same column of the positioning plate, and step 5 is repeated to complete the construction of two holes in the same column of the position to be drilled; Step 7. Repeat the above steps until all holes for installing the pipe brackets on the outside of the bridge guardrail are completed.

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