A bolt hole positioning device

Abstract

The present application relates to bolt punching technical field, the present application discloses a kind of bolt punching positioning device, including positioning unit, the positioning unit includes positioning assembly and the control assembly of being arranged in the one end of positioning assembly;Take out unit, the take out unit includes with the shell assembly of positioning assembly, control assembly is adapted, the adjusting assembly of being arranged in shell assembly and the extrusion assembly of being installed on adjusting assembly.It is beneficial to be as follows in the present application:through the setting of positioning assembly, positioning unit can be stably fixed in bolt fracture screw hole, through the limiting of positioning unit to the small electric drill used etc., help its in the center hole position of fracture bolt and carry out punching operation, avoid the deviation when punching, through the setting of take out unit, can be cooperated with positioning unit, the bolt after punching is taken out, also avoid that staff takes out by different tools, reduce the operation steps of staff.

Description

Technical Field

[0001] This invention relates to the field of bolt drilling technology, and in particular to a bolt drilling positioning device. Background Technology

[0002] As a typical representative of renewable energy utilization, the power generation efficiency and safety performance of wind turbines are important research directions. The pitch system is an important component of wind turbines. During the operation of wind turbines, the occasional occurrence of pitch bolt breakage poses a significant threat to the safe operation of the wind power system.

[0003] Currently, large bolt drilling equipment on the market cannot meet the needs of applications in small spaces. The inner ring bolt holes of pitch bearings are relatively small, and large bolt drilling equipment on the market cannot meet the operation requirements of drilling in small spaces. When the pitch bolt breaks in the bolt hole and there is still some space left in the bolt hole, there is a problem that when using small drilling tools such as electric drills, the drilling will deviate from the center plane of the broken bolt. It is impossible to accurately position the hole at the exact center of the bolt fracture surface, which will increase the difficulty of removing the broken bolt later. Summary of the Invention

[0004] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0005] The purpose of this invention is to provide a bolt drilling and positioning device that can solve the problem that when using small drilling tools such as electric drills, the hole deviates from the center plane of the broken bolt, making it impossible to accurately position the hole at the exact center of the bolt fracture surface.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a bolt drilling and positioning device, comprising a positioning unit, the positioning unit comprising a positioning component and a control component disposed at one end of the positioning component; and a removal unit, the removal unit comprising a housing component adapted to the positioning component and the control component, an adjustment component disposed inside the housing component, and a pressing component mounted on the adjustment component.

[0007] As a preferred embodiment of the bolt drilling positioning device of the present invention, the positioning component includes a threaded cylinder, a connecting cylinder fixed to one end of the threaded cylinder, and two first placement grooves symmetrically opened at one end of the connecting cylinder. An annular plate is fixedly sleeved on the outer ring of the connecting cylinder, and two limiting members are symmetrically arranged on the side of the annular plate away from the threaded cylinder.

[0008] As a preferred embodiment of the bolt drilling positioning device of the present invention, the limiting member includes a first limiting post fixed to one side of the annular plate, a first groove formed at one end of the first limiting post, a second limiting post sliding in the first limiting post, and a spring disposed in the first limiting post, wherein the two ends of the spring are respectively fixed to one side of the first limiting post and the bottom of the second limiting post.

[0009] As a preferred embodiment of the bolt drilling and positioning device of the present invention, the control component includes an adjusting cylinder rotatably sleeved on the outer ring of the connecting cylinder, a first through groove opened on one side of the adjusting cylinder, and a second groove opened on the inner ring of the adjusting cylinder. The first through groove has the same size as the inner ring of the connecting cylinder and the threaded cylinder. Two second placement grooves are symmetrically opened on the side wall of the first through groove. The second placement grooves have the same size as the first placement grooves.

[0010] As a preferred embodiment of the bolt drilling positioning device of the present invention, the control component further includes a first limiting groove formed on the top of the second groove, a second limiting groove formed on one side of the first limiting groove, limiting holes formed at both ends of the second limiting groove, the second limiting groove having the same shape as the first limiting groove, the size of the second limiting groove being smaller than the size of the first limiting groove, and the two ends of the first limiting groove being divided into a first end and a second end.

[0011] In a preferred embodiment of the bolt drilling positioning device of the present invention, the second groove is slidably engaged with the annular plate, the first limiting groove is slidably engaged with the first limiting post, the second limiting groove is slidably engaged with the second limiting post, and the limiting hole is inserted into the second limiting post.

[0012] As a preferred embodiment of the bolt drilling and positioning device of the present invention, the outer shell assembly includes an outer cylinder adapted to the inner ring of the threaded cylinder, a third groove and a fourth groove formed in the outer cylinder, and a through hole connecting the third groove and the fourth groove. Two first placement blocks are symmetrically fixedly connected to one end of the outer cylinder. The first placement blocks are adapted to the first placement groove and the second placement groove. At least two second through grooves are uniformly formed on the side wall of the fourth groove. Two sliding grooves are symmetrically formed on the side wall of the fourth groove. The sliding grooves and the second through grooves do not affect each other.

[0013] In a preferred embodiment of the bolt drilling positioning device of the present invention, the adjusting assembly includes a rotating rod rotating inside the outer cylinder, two second placement blocks symmetrically fixed to the outer ring of the rotating rod, a bidirectional threaded rod fixed to one end of the rotating rod away from the second placement blocks, and a first baffle and a second baffle sleeved on the outer ring of the bidirectional threaded rod. One end of the bidirectional threaded rod rotates to the bottom of the fourth groove. The bidirectional threaded rod is adapted to the through hole. The second placement block and the first placement block have the same size and fit together. Two sliders are symmetrically fixed to the outer rings of the second baffle and the first baffle. The first baffle and the second baffle are respectively disposed at the top and bottom of the fourth groove. The sliders slide in a groove. The inner rings of the first baffle and the second baffle are threaded in a groove with the bidirectional threaded rod.

[0014] As a preferred embodiment of the bolt drilling positioning device of the present invention, the extrusion assembly includes a first hinge seat, a second hinge seat, a third hinge seat, a fixed shaft fixed to the first hinge seat, the second hinge seat and the third hinge seat, a second connecting plate disposed between the first hinge seat and the second hinge seat, a first connecting plate disposed between the second hinge seat and the third hinge seat, and a rack sliding in the second through groove, wherein the outer ring of the rack is fixedly connected to a rack.

[0015] In a preferred embodiment of the bolt drilling positioning device of the present invention, the first hinge seat, the second hinge seat and the third hinge seat are respectively fixed to the bottom of the first baffle, the inner ring of the extrusion plate and the top of the second baffle. The two ends of the first connecting plate rotate on the fixed shafts on the second hinge seat and the third hinge seat, and the two ends of the second connecting plate rotate on the fixed shafts on the first hinge seat and the second hinge seat. The movements of the first connecting plate and the second connecting plate do not affect each other.

[0016] The beneficial effects of this invention are as follows: By setting up a positioning component, this invention can stably fix the positioning unit in the bolt hole where the bolt is broken. The positioning unit limits the small electric drill used, helping it to drill at the center of the broken bolt and preventing deviation during drilling. The removal unit can cooperate with the positioning unit to remove the bolt after drilling, avoiding the need for workers to use different tools and reducing the number of steps required for operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of a bolt drilling and positioning device.

[0019] Figure 2 A cross-sectional view of the bolt drilling and positioning device.

[0020] Figure 3 This is an exploded view of the positioning component.

[0021] Figure 4 This is a magnified view of the positioning component.

[0022] Figure 5 This is a side sectional view of the control component.

[0023] Figure 6 This is a schematic diagram of the bottom cross-sectional structure of the control component.

[0024] Figure 7 This is a partial cross-sectional view of the extracted unit.

[0025] Figure 8 This is a partial structural diagram of the extracted unit. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0029] Reference Figures 1-2This is the first embodiment of the present invention. This embodiment provides a bolt drilling and positioning device, which includes a positioning unit 100 and a removal unit 200. The removal unit 200 can be used in conjunction with the positioning unit 100. The removal unit 200 is placed in the channel of the central axis of the positioning unit 100. When it is necessary to drill along with a bolt that has broken in the bolt hole, the positioning unit 100 can limit the drilling position of the bolt so that it is drilled in the center of the broken bolt, which facilitates subsequent removal. Through the cooperation of the removal unit 200 and the positioning unit 100, the broken bolt can be removed and the positioning unit 100 can be removed from the bolt hole.

[0030] Specifically, the positioning unit 100 includes a positioning component 101 and a control component 102 disposed at one end of the positioning component 101; the extraction unit 200 includes a housing component 201 adapted to the positioning component 101 and the control component 102, an adjustment component 202 disposed inside the housing component 201, and a pressing component 203 installed on the adjustment component 202.

[0031] In use, the positioning component 101 can fix the positioning unit 100 in the bolt hole of the broken bolt, thereby ensuring that the positioning unit 100 remains stable when drilling the bolt with small tools such as electric drills. Through the action of the control component 102, the positioning component 101 and the bolt hole can be stabilized. After drilling is completed, the extraction unit 200 passes through the channel in the center of the positioning unit 100 and enters the hole drilled in the bolt. There is a certain distance between the extraction unit 200 and the hole so that the extrusion component 203 can extend outward. Through the cooperation between the positioning unit 100 and the extraction unit 200, the stability of the extraction unit 200 during operation can also be ensured.

[0032] Furthermore, since there is a certain gap between the housing assembly 201 and the drilled hole, when using the extraction unit 200 alone to remove the broken bolt, there may be instability in the fixing, and when force is applied to rotate the extraction unit 200, the extraction unit 200 may shift, resulting in damage to the device and inability to remove the broken bolt. Example

[0033] Reference Figures 3-6 This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes a positioning component 101, which includes a threaded cylinder 101a, a connecting cylinder 101b fixed to one end of the threaded cylinder 101a, and two first placement grooves 101c symmetrically opened at one end of the connecting cylinder 101b. An annular plate 101d is fixedly sleeved on the outer ring of the connecting cylinder 101b, and two limiting members 101e are symmetrically arranged on the side of the annular plate 101d away from the threaded cylinder 101a.

[0034] Furthermore, the limiting member 101e includes a first limiting post 101e-1 fixed to one side of the annular plate 101d, a first groove 101e-2 opened at one end of the first limiting post 101e-1, a second limiting post 101e-4 sliding in the first limiting post 101e-1, and a spring 101e-3 disposed in the first limiting post 101e-1. The two ends of the spring 101e-3 are respectively fixed to one side of the first limiting post 101e-1 and the bottom of the second limiting post 101e-4.

[0035] The threaded outer ring of the threaded cylinder 101a allows it to be fixed in the hole of the broken bolt. The length of the threaded cylinder 101a is relatively long, but it should not interfere with the use of drilling tools such as electric drills. This ensures that when the threaded cylinder 101a is inserted into the hole, one end of the threaded cylinder 101a can fit against the surface of the broken bolt, guaranteeing stable drilling. The first placement groove 101c cooperates with the extraction unit 200 to limit its movement. The annular plate 101d and the limiting member 101e limit the rotation between the positioning component 101 and the control component 102. Furthermore, the cooperation between the limiting member 101e and the control component 102 provides sufficient support when the control component 102 rotates, driving the positioning component 101 to rotate, ensuring the stability of the connection between the two.

[0036] Specifically, the control component 102 includes an adjusting cylinder 102a rotatably sleeved on the outer ring of the connecting cylinder 101b, a first through groove 102c opened on one side of the adjusting cylinder 102a, and a second groove 102b opened on the inner ring of the adjusting cylinder 102a. The first through groove 102c has the same size as the inner ring of the connecting cylinder 101b and the threaded cylinder 101a. Two second placement grooves 102d are symmetrically opened on the side wall of the first through groove 102c. The second placement grooves 102d have the same size as the first placement grooves 101c.

[0037] Furthermore, the control component 102 also includes a first limiting groove 102e formed on the top of the second groove 102b. A second limiting groove 102e-1 is formed on one side of the first limiting groove 102e. Limiting holes 102e-2 are formed at both ends of the second limiting groove 102e-1. The second limiting groove 102e-1 has the same shape as the first limiting groove 102e. The size of the second limiting groove 102e-1 is smaller than the size of the first limiting groove 102e. The two ends of the first limiting groove 102e are divided into a first end L and a second end M.

[0038] Furthermore, the second groove 102b is slidably engaged with the annular plate 101d, the first limiting groove 102e is slidably engaged with the first limiting post 101e-1, the second limiting groove 102e-1 is slidably engaged with the second limiting post 101e-4, and the limiting hole 102e-2 is inserted into the second limiting post 101e-4.

[0039] The cooperation between the second groove 102b and the annular plate 101d can limit the position of the adjusting cylinder 102a, so that the adjusting cylinder 102a can remain stable when rotating. On the other hand, it can also provide support and operating conditions for the cooperation between the first limiting groove 102e and the limiting member 101e. The setting of the second placement groove 102d can ensure that the taking out unit 200 is driven to run while the adjusting cylinder 102a is rotated.

[0040] The first limiting groove 102e and the second limiting groove 102e-1 are mainly used to limit the rotation of the adjusting cylinder 102a. The adjusting cylinder 102a can be fixed in different positions by the snap-fit ​​cooperation between the limiting hole 102e-2 and the second limiting post 101e-4.

[0041] When the device is in its initial state, the two second placement slots 102d are aligned with the two first placement slots 101c. When the adjusting cylinder 102a is rotated, the two second placement slots 102d will be misaligned with the two first placement slots 101c. This misalignment will firmly limit the extraction unit 200 within the threaded cylinder 101a and the adjusting cylinder 102a, preventing it from shaking and making it easier for the user to operate. When the adjusting cylinder 102a is rotated again in the same direction, the extraction unit 200 will be rotated, thereby removing the broken bolt from the screw hole.

[0042] When removing a broken bolt from the inner ring threaded hole of the pitch bearing of a wind turbine generator set, first, place the positioning unit 100 in the threaded hole, insert the threaded cylinder 101a into the threaded hole, and then rotate the adjusting cylinder 102a manually or with a wrench or other tools to move the threaded cylinder 101a into the threaded hole. At this time, one end of the first limiting groove 102e in the adjusting cylinder 102a contacts and fits against the first limiting post 101e-1, facilitating the transmission of force. Figure 6 When inserting the threaded cylinder 101a into the threaded hole, the adjusting cylinder 102a needs to be rotated along the direction from the first end L to the second end M. At this time, the first limiting post 101e-1 is located at the first end L of the first limiting groove 102e. This is to prevent the second limiting post 101e-4 from contacting the limiting hole 102e-2 and bearing force when the adjusting cylinder 102a rotates and drives the threaded cylinder 101a to rotate, which would damage the device and affect its use. Example

[0043] Reference Figures 7-8 This is the third embodiment of the present invention. This embodiment is based on the first two embodiments. This embodiment also includes a shell assembly 201, which includes an outer cylinder 201a adapted to the inner ring of the threaded cylinder 101a, a third groove 201b and a fourth groove 201c opened in the outer cylinder 201a, and a through hole 201d connecting the third groove 201b and the fourth groove 201c. Two first placement blocks 201e are symmetrically fixedly connected to one end of the outer cylinder 201a. The first placement blocks 201e are adapted to the first placement groove 101c and the second placement groove 102d. At least two second through grooves 201f are evenly opened on the side wall of the fourth groove 201c. Two sliding grooves 201g are symmetrically opened on the side wall of the fourth groove 201c. The sliding grooves 201g and the second through grooves 201f do not affect each other.

[0044] According to the description in Embodiment 2, the size of the outer cylinder 201a is smaller than the size of the hole drilled by a small drilling tool such as an electric drill, so that it will not be obstructed when placing the extraction unit 200. The first placement block 201e can be engaged with the first placement groove 101c. After the first placement block 201e is placed in the first placement groove 101c, the side away from the fourth groove 201c is aligned with the top of the connecting cylinder 101b. Only after rotating the adjusting cylinder 102a can the stability of the outer cylinder 201a in the threaded cylinder 101a be guaranteed.

[0045] Specifically, the adjusting assembly 202 includes a rotating rod 202a rotating inside the outer cylinder 201a, two second placement blocks 202b symmetrically fixed to the outer ring of the rotating rod 202a, a bidirectional threaded rod 202c fixed to one end of the rotating rod 202a away from the second placement blocks 202b, and a first baffle 202d and a second baffle 202e sleeved on the outer ring of the bidirectional threaded rod 202c. One end of the bidirectional threaded rod 202c rotates to the bottom of the fourth groove 201c, and the bidirectional threaded rod 202c is adapted to the through hole 201d. The second placement block 202b has the same size as the first placement block 201e and fits into the first placement block 201e. The outer rings of the second baffle 202e and the first baffle 202d are symmetrically fixed with two sliders 202f. The first baffle 202d and the second baffle 202e are respectively set at the top and bottom of the fourth groove 201c. The sliders 202f slide in cooperation with the slide groove 201g. The inner rings of the first baffle 202d and the second baffle 202e are threaded in cooperation with the bidirectional threaded rod 202c.

[0046] The rotating rod 202a rotates inside the outer cylinder 201a, and the second placement block 202b is positioned above the first placement block 201e. The bottom of the second placement block 202b is almost in contact with the top of the first placement block 201e. The bottom of the second placement block 202b should not be lower than the bottom of the second placement groove 102d to avoid affecting the normal operation of the device. The sliders 202f on the first baffle 202d and the second baffle 202e are slidably engaged with the groove 201g, so that they can limit the movement of the first baffle 202d and the second baffle 202e. When the rotating rod 202a is rotated, the first baffle 202d and the second baffle 202e will move relative to each other normally, so that the extrusion assembly 203 can operate normally.

[0047] Specifically, the extrusion assembly 203 includes a first hinge seat 203a, a second hinge seat 203b, a third hinge seat 203c, a fixed shaft 203d fixed on the first hinge seat 203a, the second hinge seat 203b and the third hinge seat 203c, a second connecting plate 203f disposed between the first hinge seat 203a and the second hinge seat 203b, a first connecting plate 203e disposed between the second hinge seat 203b and the third hinge seat 203c, and a rack 203h sliding in the second through groove 201f, with the outer ring of the rack 203h fixedly connected to the rack 203h.

[0048] Furthermore, the first hinge seat 203a, the second hinge seat 203b, and the third hinge seat 203c are respectively fixed to the bottom of the first baffle 202d, the inner ring of the extrusion plate 203g, and the top of the second baffle 202e. The two ends of the first connecting plate 203e rotate on the fixed shafts 203d on the second hinge seat 203b and the third hinge seat 203c, respectively. The two ends of the second connecting plate 203f rotate on the fixed shafts 203d on the first hinge seat 203a and the second hinge seat 203b, respectively. The movements of the first connecting plate 203e and the second connecting plate 203f do not affect each other.

[0049] The first hinge seat 203a, the second hinge seat 203b, and the third hinge seat 203c all function as hinges, ensuring the normal operation of the extrusion assembly 203. Through the action of the first connecting plate 203e and the second connecting plate 203f, the second hinge seat 203b extends outward as the first baffle 202d and the second baffle 202e move relative to each other. The second hinge seat 203b is positioned on the center line connecting the first hinge seat 203a and the second hinge seat 203b, ensuring stable movement of the extrusion plate 203g. Simultaneously, the first connecting plate 203e and the second connecting plate 203f are rotatably connected to the fixed shaft 203d on the second hinge seat 203b. Various configurations are possible, but this is existing technology and will not be elaborated upon. Initially, the extrusion plate 203g is located in the second through groove 201f, at which point the second placement block 202b aligns with the first placement block 201e.

[0050] The outer ring of the extrusion plate 203g, which needs to contact the hole, is equipped with a rack 203h. The function of the rack 203h is to rotate the rotating rod 202a, which drives the bidirectional threaded rod 202c to rotate. By utilizing the cooperation between the adjusting component 202 and the extrusion component 203, the extrusion plate 203g is moved towards the side wall of the hole. When the extrusion plate 203g contacts the side wall of the hole, the rack 203h increases the friction between the extrusion plate 203g and the hole, so that when the outer cylinder 201a is rotated, the broken bolt can be smoothly rotated and removed.

[0051] In use, according to Embodiment 2, the threaded cylinder 101a is installed in the threaded hole of the broken bolt. Then, a small electric drill or similar tool is used to drill a hole in the bolt. When the hole reaches the specified depth, the drill is removed. The outer cylinder 201a is then inserted into the drilled hole through the channel between the threaded cylinder 101a and the center of the adjusting cylinder 102a. The first placement block 201e and the second placement block 202b are then aligned with the second placement groove 102d and the first placement groove 101c. Due to the depth limitation of the drilling, after the outer cylinder 201a is placed into the hole, the side of the first placement block 201e closest to the bidirectional threaded rod 202c is aligned with... When one side of the first placement groove 101c is engaged, one end of the outer cylinder 201a extends to the bottom of the hole. At this time, the second limiting post 101e-4 is pressed, and the second limiting post 101e-4 moves into the first limiting post 101e-1. When the first limiting post 101e-1 disengages from the limiting hole 102e-2, the adjusting cylinder 102a is rotated manually or with a wrench or other suitable tool along the direction from the second end M to the first end L. The adjusting cylinder 102a will drive the rotating rod 202a to rotate through the engagement of the second placement groove 102d and the second placement block 202b. The rotating rod 202a drives the bidirectional threaded rod 2 When 02c rotates, the first baffle 202d and the second baffle 202e will move relative to each other. As the distance between the first baffle 202d and the second baffle 202e decreases, the second connecting plate 203f and the first connecting plate 203e will drive the extrusion plate 203g to move outward and contact the side wall of the hole. At the same time as the adjusting cylinder 102a rotates, the first limiting post 101e-1 and the second limiting post 101e-4 slide in the first limiting groove 102e and the second limiting groove 102e-1 respectively, moving from the second end M to the first end L. When they reach the first end L, the second limiting post 101e-4... e-4 will be ejected by spring 101e-3 and engage with the limiting hole 102e-2 at the first end L. Then, as the adjusting cylinder 102a continues to rotate, since the first limiting post 101e-1 is in contact with the first end L, it will simultaneously drive the threaded cylinder 101a and the outer cylinder 201a to rotate, and drive the threaded cylinder 101a and the broken bolt to move outward from the threaded hole until the broken bolt is removed. After removal, press the second limiting post 101e-4, and then rotate the adjusting cylinder 102a in the direction from the first end L to the second end M so that the removal unit 200 and the positioning unit 100 return to their original positions, and then remove the bolt.

[0052] In summary, when the device is in operation and it is necessary to remove the broken bolt from the inner ring screw hole of the pitch bearing, the positioning component 101 is fixed into the screw hole by operating the control component 102. Then, a small electric drill or other tools are used to drill the bolt. When the hole is drilled to the specified depth, the electric drill is removed. Then, the outer cylinder 201a is placed into the hole. Then, the broken bolt is removed by using the cooperation between the positioning unit 100 and the removal unit 200.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A bolt drilling and positioning device, characterized in that: include, The positioning unit (100) includes a positioning component (101) and a control component (102) disposed at one end of the positioning component (101). The extraction unit (200) includes a housing assembly (201) adapted to the positioning assembly (101) and the control assembly (102), an adjustment assembly (202) disposed inside the housing assembly (201), and a pressing assembly (203) mounted on the adjustment assembly (202). The positioning assembly (101) includes a threaded cylinder (101a), a connecting cylinder (101b) fixed to one end of the threaded cylinder (101a), and two first placement slots (101c) symmetrically opened at one end of the connecting cylinder (101b). An annular plate (101d) is fixedly sleeved on the outer ring of the connecting cylinder (101b). Two limiting members (101e) are symmetrically arranged on the side of the annular plate (101d) away from the threaded cylinder (101a). The control component (102) includes an adjusting cylinder (102a) rotatably sleeved on the outer ring of the connecting cylinder (101b), a first through groove (102c) opened on one side of the adjusting cylinder (102a), and a second groove (102b) opened on the inner ring of the adjusting cylinder (102a). The first through groove (102c) has the same size as the inner ring of the connecting cylinder (101b) and the threaded cylinder (101a). The side wall of the first through groove (102c) is symmetrically provided with two second placement grooves (102d), and the second placement grooves (102d) have the same size as the first placement grooves (101c). The second groove (102b) is in sliding engagement with the annular plate (101d); The control component (102) further includes a first limiting groove (102e) opened at the top of the second groove (102b), a second limiting groove (102e-1) opened on one side of the first limiting groove (102e), and limiting holes (102e-2) opened at both ends of the second limiting groove (102e-1). The first limiting groove (102e), the second limiting groove (102e-1), the limiting holes (102e-2) cooperate with the limiting member (101e) to limit the rotation of the adjusting cylinder (102a). The outer shell assembly (201) includes an outer cylinder (201a) and two first placement blocks (201e) fixedly connected to one side of the outer cylinder (201a). The adjustment assembly (202) is movably installed inside the outer cylinder (201a). The adjustment assembly (202) includes a rotating rod (202a) rotating inside the outer cylinder (201a), two second placement blocks (202b) symmetrically fixed to the outer ring of the rotating rod (202a), and a fixed part of the rotating rod (202a) away from the first placement block. The two placement blocks (202b) have a bidirectional threaded rod (202c) at one end, and a first baffle (202d) and a second baffle (202e) sleeved on the outer ring of the bidirectional threaded rod (202c). The outer rings of the second baffle (202e) and the first baffle (202d) are symmetrically fixed with two sliders (202f). The second placement groove (102d) and the first placement groove (101c) cooperate with the second placement block (202b) and the first placement block (201e) respectively. The extrusion assembly (203) is hinged between the first baffle (202d) and the second baffle (202e) for connection with the bolt; The positional relationship between the second placement groove (102d) and the first placement groove (101c) is changed by rotating the adjusting cylinder (102a), thereby realizing the deformation of the extrusion assembly (203) and ensuring its connection with the broken bolt.

2. The bolt drilling and positioning device as described in claim 1, characterized in that: The limiting member (101e) includes a first limiting post (101e-1) fixed to one side of the annular plate (101d), a first groove (101e-2) opened at one end of the first limiting post (101e-1), a second limiting post (101e-4) sliding in the first limiting post (101e-1), and a spring (101e-3) disposed in the first limiting post (101e-1). The two ends of the spring (101e-3) are respectively fixed to one side of the first limiting post (101e-1) and the bottom of the second limiting post (101e-4).

3. The bolt drilling and positioning device as described in claim 2, characterized in that: The second limiting groove (102e-1) has the same shape as the first limiting groove (102e). The size of the second limiting groove (102e-1) is smaller than that of the first limiting groove (102e). The two ends of the first limiting groove (102e) are divided into a first end (L) and a second end (M).

4. The bolt drilling and positioning device as described in claim 3, characterized in that: The first limiting groove (102e) is slidably engaged with the first limiting post (101e-1), the second limiting groove (102e-1) is slidably engaged with the second limiting post (101e-4), and the limiting hole (102e-2) is inserted into the second limiting post (101e-4).

5. The bolt drilling and positioning device as described in claim 4, characterized in that: The outer casing assembly (201) includes an outer cylinder (201a) adapted to the inner ring of the threaded cylinder (101a), a third groove (201b) and a fourth groove (201c) opened in the outer cylinder (201a), and a through hole (201d) connecting the third groove (201b) and the fourth groove (201c). Two first placement blocks (201e) are symmetrically fixedly connected to one end of the outer cylinder (201a). The first placement blocks (201e) are adapted to the first placement groove (101c) and the second placement groove (102d). At least two second through grooves (201f) are evenly opened on the side wall of the fourth groove (201c). Two sliding grooves (201g) are symmetrically opened on the side wall of the fourth groove (201c). The sliding grooves (201g) and the second through grooves (201f) do not affect each other.

6. The bolt drilling and positioning device as described in claim 5, characterized in that: One end of the bidirectional threaded rod (202c) rotates to the bottom of the fourth groove (201c). The bidirectional threaded rod (202c) is adapted to the through hole (201d). The second placement block (202b) is the same size as the first placement block (201e). The second placement block (202b) fits into the first placement block (201e). The first baffle (202d) and the second baffle (202e) are respectively disposed at the top and bottom of the fourth groove (201c). The slider (202f) is slidably engaged with the slide groove (201g). The inner rings of the first baffle (202d) and the second baffle (202e) are threadedly engaged with the bidirectional threaded rod (202c).

7. The bolt drilling and positioning device as described in claim 6, characterized in that: The extrusion assembly (203) includes a first hinge seat (203a), a second hinge seat (203b), a third hinge seat (203c), a fixed shaft (203d) fixed on the first hinge seat (203a), the second hinge seat (203b), and the third hinge seat (203c), a second connecting plate (203f) disposed between the first hinge seat (203a) and the second hinge seat (203b), a first connecting plate (203e) disposed between the second hinge seat (203b) and the third hinge seat (203c), and a rack (203h) sliding in the second through groove (201f), wherein the outer ring of the rack (203h) is fixedly connected with a rack (203h).

8. The bolt drilling and positioning device as described in claim 7, characterized in that: The first hinge seat (203a), the second hinge seat (203b), and the third hinge seat (203c) are respectively fixed to the bottom of the first baffle (202d), the inner ring of the extrusion plate (203g), and the top of the second baffle (202e). The two ends of the first connecting plate (203e) rotate on the fixed shaft (203d) on the second hinge seat (203b) and the third hinge seat (203c), respectively. The two ends of the second connecting plate (203f) rotate on the fixed shaft (203d) on the first hinge seat (203a) and the second hinge seat (203b), respectively. The movements of the first connecting plate (203e) and the second connecting plate (203f) do not affect each other.

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