Drilling device for production of cutting pick of heading machine

Abstract

The present application relates to the technical field of pick production equipment, in particular to a drilling device for roadheader pick production, which comprises a support, a feeding pipe is installed on the support, the support is slidingly connected with a first fixed block and a second fixed block, a first driving mechanism is installed between the support and the first fixed block, a material control mechanism is installed on the support, clamping blocks are arranged on the first fixed block and the second fixed block, the clamping blocks are symmetrically arranged, a first clamping mechanism is arranged between the clamping blocks on the first fixed block, a second clamping mechanism is arranged between the clamping blocks on the second fixed block, the first fixed block and the second fixed block are installed with fixed rods, a positioning point is arranged on the support, a position measuring mechanism is installed between the fixed rods on the support, and a second driving mechanism is installed between the support and the second fixed block.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pick production equipment, in particular to a drilling device for production of picks of a heading machine. BACKGROUND

[0002] The pick of a heading machine is a main cutting tool on a cutting head of the heading machine, is installed on the cutting head in cooperation with a tooth holder, and is one of easily-damaged parts of roadway heading. The pick mainly comprises a pick shank, a pick head, and an alloy bit head. A part of the pick head connected with the pick shank is a plane perpendicular to an axial direction of the pick shank. A part where the plane of the pick head is located is a tooth shoulder. In the production process of the pick of the heading machine, a drilling process is a crucial link. The traditional pick drilling device needs frequent manual intervention in the use process, and the feeding and discharging are not stopped, which not only increases the labor intensity, but also reduces the production efficiency. SUMMARY

[0003] The present application aims to provide a drilling device for production of picks of a heading machine, and solve the problem that manual intervention is needed frequently when the pick is drilled.

[0004] The technical scheme is that the drilling device for production of picks of a heading machine comprises a support with a fixed position, a feeding pipe is installed on the support, a first fixed block and a second fixed block are slidably connected below the feeding pipe, a first driving mechanism for moving the first fixed block is installed between the support and the first fixed block, a control mechanism is installed on the support, and the control mechanism is configured to make a lowermost pick in the feeding pipe fall between the first fixed block and the second fixed block after the pick moves downward between the first fixed block and the second fixed block, clamping blocks are arranged on the first fixed block and the second fixed block, the clamping blocks are symmetrically arranged, a first clamping mechanism is arranged between the clamping blocks on the first fixed block, a second clamping mechanism is arranged between the clamping blocks on the second fixed block, the first clamping mechanism and the second clamping mechanism are configured to move the pick to make the tooth shoulder of the pick contact the surfaces of the clamping blocks when the distance between the first fixed block and the second fixed block is reduced, fixed rods are installed on the first fixed block and the second fixed block, a positioning point is arranged on the support, a measuring mechanism is installed between the fixed rods on the support and is configured to measure the distance between the symmetric surfaces of the clamping blocks on the first fixed block and the second fixed block and the positioning point when the pick is fixed by the clamping blocks, and a second driving mechanism for moving the second fixed block is installed between the support and the second fixed block.

[0005] Preferably, the material control mechanism comprises a first rack fixed relative to the first fixed block, parallel mounting plates are mounted on the support, and a second rack and a third rack are slidingly connected between each mounting plate, the second rack is located between the first rack and the third rack, a gear meshing between the second rack and the first rack and the third rack is mounted, each gear is rotationally connected with the mounting plate, a spacer rod is mounted on the second rack and the third rack, and a through hole for the spacer rod to pass through is formed in the feed pipe.

[0006] Preferably, the first fixed block is provided with a limiting plate below the clamping block, the upper surface of the limiting plate is an inclined surface inclined downwardly toward the second fixed block, and the limiting plate cooperates with the second fixed block to support the cutting tooth when the cutting tooth moves from the feed pipe to between the first fixed block and the second fixed block.

[0007] Preferably, the first clamping mechanism comprises a clamping plate, a groove is formed in the first fixed block, a first connecting rod and a second connecting rod are rotationally connected between the clamping plate and the groove bottom, the connecting line between the rotational connection shafts of the first connecting rod and the second connecting rod forms a parallelogram structure, a first elastic member made of elastic material is mounted between the clamping plate and the groove bottom, the first clamping mechanism and the second clamping mechanism are the same in structure and principle and are symmetrically arranged.

[0008] Preferably, the position measuring mechanism comprises a mounting shell fixed relative to the support, a first plate, a second plate and a third plate are slidingly connected to the mounting shell, the third plate is located between the first plate and the second plate, a second elastic member made of elastic material is mounted between the third plate and the first plate and the second plate, the first plate and the second plate are symmetrically arranged, each second elastic member is symmetrically arranged, and the symmetry planes of the first plate and the second plate and the symmetry planes of each second elastic member are the same plane.

[0009] Preferably, the feed pipe is a tubular structure with a T-shaped hole inside, and the first fixed block and the second fixed block are located directly below the longitudinal portion of the T-shaped hole in the feed pipe.

[0010] Preferably, the first driving mechanism comprises a first telescopic member, the fixed end of the first telescopic member is fixedly connected with the support, the moving end of the first telescopic member is fixedly connected with the first fixed block, a guide rod is fixedly connected with the first fixed block, each guide rod is slidingly connected with the support, each guide rod is fixedly connected with a fixed frame, and the fixed frame is fixedly connected with the first rack in the material control mechanism.

[0011] Preferably, the second driving mechanism comprises a second telescopic member, a fixed end of the second telescopic member is fixedly connected with the support, a moving end of the second telescopic member is fixedly connected with a sliding block, the sliding block is slidingly connected with the support, a sliding direction of the sliding block relative to the support is perpendicular or inclined to a sliding direction of the first fixed block relative to the support, the sliding block is slidingly connected with a second fixed block, and a sliding direction of the sliding block relative to the second fixed block is inclined to the sliding direction of the sliding block relative to the support.

[0012] Preferably, a first baffle for contacting with a fixed rod on the first fixed block is arranged on the first plate, a second baffle for contacting with a fixed rod on the second fixed block is arranged on the second plate, a third baffle is arranged on the third plate, and a displacement sensor for measuring a distance between the third baffle and the positioning point is arranged on the support.

[0013] The application provides a drilling device for producing a cutting pick of a heading machine.

[0014] 1. The feeding and discharging of the cutting pick are completed through cooperation of the material control mechanism and the fixed blocks, and the positioning of the cutting pick in front-back, left-right and up-down directions is completed through cooperation of the fixed blocks and the first driving mechanism, the second driving mechanism, the position measuring mechanism, the first clamping mechanism and the second clamping mechanism, so that the feeding and discharging of the cutting pick are automatically completed, manual intervention is reduced, and the cutting pick is conveniently drilled. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the application.

[0016] Figure 2 It is a top view of the application.

[0017] Figure 3 It is a view of the application in B-B direction.

[0018] Figure 4 It is a view of the application in C-C direction.

[0019] Figure 5 It is a view of the application in D-D direction.

[0020] Figure 6 It is a partial view of the application when the clamping block fixes the cutting pick.

[0021] Figure 7 It is a partial view of the application when the cutting pick moves downward between the first fixed block and the second fixed block.

[0022] Figure 8 It is a partial view of the application when the cutting pick is supported by the second fixed block.

[0023] Figure 9This is a partially enlarged schematic diagram of the present invention at point A.

[0024] In the diagram: 1. Bracket; 2. Feed pipe; 3. First fixing block; 4. Second fixing block; 5. First drive mechanism; 5.1 First telescopic component; 5.2 Guide rod; 6. Second drive mechanism; 6.1 Second telescopic component; 6.2 Slider; 7. Material control mechanism; 7.1 First rack; 7.2 Second rack; 7.3 Third rack; 7.4 Gear; 7.5 Spacer; 7.6 Mounting plate; 8. First clamping mechanism; 8.1 Clamping plate; 8.2 Groove; 8.3 First connecting rod; 8.4 Second connecting rod; 8.5 First elastic component; 9. Second clamping mechanism; 10. Positioning mechanism; 10.1 Mounting shell; 10.2 First plate; 10.3 Second plate; 10.4 Third plate; 10.5 First baffle; 10.6 Second baffle; 10.7 Third baffle; 10.8 Displacement sensor; 11. Clamping block; 12. Fixing rod; 13. Positioning point; 14. Limiting plate; 15. Fixing frame. Detailed Implementation

[0025] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0028] Please see Figures 1-9This invention provides a technical solution: a drilling device for producing cutting teeth for a tunneling machine, comprising a support 1 fixed in a relative position, a feed pipe 2 bolted to the support 1, a first fixing block 3 and a second fixing block 4 slidably connected to the support 1 below the feed pipe 2, the first fixing block 3 and the second fixing block 4 sliding in the same direction relative to the support 1, a first driving mechanism 5 for moving the first fixing block 3 installed between the support 1 and the first fixing block 3, and a material control mechanism 7 installed on the support 1, forming a structure where, after the cutting tooth located between the first fixing block 3 and the second fixing block 4 moves downward, the material control mechanism 7 causes the lowest cutting tooth in the feed pipe 2 to fall between the first fixing block 3 and the second fixing block 4, and clamping blocks 11 are provided on the first fixing block 3 and the second fixing block 4. The clamping blocks 11 on the fixing block 3 are integral with the first fixing block 3, and the clamping blocks 11 on the second fixing block 4 are integral with the second fixing block 4. The clamping blocks 11 are symmetrically arranged, with each clamping block 11 symmetrical with respect to both the horizontal and vertical planes. A first clamping mechanism 8 is provided between each clamping block 11 on the first fixing block 3, and a second clamping mechanism 9 is provided between each clamping block 11 on the second fixing block 4. This forms a structure where, when the distance between the first fixing block 3 and the second fixing block 4 decreases, the first clamping mechanism 8 and the second clamping mechanism 9 cooperate to move the cutting teeth, causing the cutting tooth shoulders to contact the surfaces of each clamping block 11. Fixing rods 12 are mounted on the first fixing block 3 and the second fixing block 4, and the first fixing block 3 is welded to the fixing rods 12. Two fixed blocks 4 are welded and fixed to their fixed rods 12. Positioning points 13 are set on the bracket 1. A measuring mechanism 10 is installed between each fixed rod 12 on the bracket 1 to measure the distance between the symmetrical plane of the clamping block 11 on the first fixed block 3 and the clamping block 11 on the second fixed block 4 and the positioning point 13 when the clamping blocks 11 are fixed with their cutting teeth. A second driving mechanism 6 is installed between the bracket 1 and the second fixed block 4 to move the second fixed block 4. In use, the cutting teeth are arranged in a single row inside the feed pipe 2. Through the material control mechanism 7, when the cutting teeth between the first fixed block 3 and the second fixed block 4 move downwards, the lowest cutting tooth in the feed pipe 2 falls between the first fixed block 3 and the second fixed block 4. The first driving mechanism 5 changes the distance between the first fixed block 3 and the second fixed block 4. The distance between the clamping blocks 11 is fixed by fixing the cutting tooth shank, thereby fixing the cutting tooth. Simultaneously, as the distance between the first fixing block 3 and the second fixing block 4 decreases, the first clamping mechanism 8 and the second clamping mechanism 9 cooperate to move the cutting tooth so that the cutting tooth shoulder contacts the surface of each clamping block 11, thus completing the positioning of the cutting tooth in the front-back direction. Since the clamping blocks 11 are symmetrically arranged, when each clamping block 11 fixes the cutting tooth shank, the axis of the cutting tooth shank is the intersection of the symmetrical horizontal plane and the symmetrical vertical plane of each clamping block 11, completing the positioning of the cutting tooth in a direction perpendicular to both the axis of the cutting tooth shank and the sliding direction of the first fixing block 3 relative to the support 1. For example, when the first fixing block 3 slides left-right relative to the support 1, the positioning of the cutting tooth in the up-down direction is completed.Positioning point 13 can be a point on the same vertical plane as the rotation axis of the drilling tool at the position of the support 1 on the measuring mechanism 10, or it can be any other suitable position. Using positioning point 13 as a reference, when the clamping blocks 11 are fixing the cutting tooth shank, the measuring mechanism 10 measures the distance between the symmetrical plane of the clamping blocks 11 on the first fixing block 3 and the clamping blocks 11 on the second fixing block 4 and positioning point 13. Then, through the cooperation of the first driving mechanism 5 and the second driving mechanism 6, the measured value of the measuring mechanism 10 is within the range measured by the measuring mechanism 10 when the cutting tooth drilling meets the standard, thus completing the positioning of the cutting tooth in the sliding direction of the first fixing block 3 relative to the support 1. For example, when the first fixing block 3 slides left and right relative to the support 1, the cutting tooth is positioned in the left and right direction, thus completing the overall positioning of the cutting tooth, facilitating the drilling tool to rotate the cutting tooth. After the rotation is completed, the cutting tooth can be moved down between the first fixing block 3 and the second fixing block 4 by moving the first fixing block 3, completing the automated loading and unloading of the cutting tooth and reducing manual intervention.

[0029] In this solution, the bracket 1 is also equipped with a drilling tool. The drilling tool moves and rotates to drill holes at the cutting tooth head. This part is part of the prior art and will not be described in detail here. A collection box can also be set directly below the first fixing block 3 and the second fixing block 4 to hold the cutting teeth that fall after drilling.

[0030] In one embodiment, please refer to Figure 4 The material control mechanism 7 includes a first rack 7.1, which is fixed relative to the first fixed block 3. Parallel mounting plates 7.6 are bolted to the bracket 1. Second racks 7.2 and third racks 7.3 are slidably connected between the mounting plates 7.6. Strip-shaped blocks are welded to the sides of the second racks 7.2 and third racks 7.3. Elongated holes that mate with the strip-shaped blocks are formed on the mounting plates 7.6. Through the engagement of the strip-shaped blocks with the elongated holes, the second racks 7.2 and third racks 7.3 slide on the mounting plates 7.6. The second rack 7.2 is positioned between the first rack 7.1 and the third rack 7.3. Between racks 7.3, and between the second rack 7.2 and the first rack 7.1 and the third rack 7.3, meshing gears 7.4 are installed. There are two gears 7.4, and each gear 7.4 is rotatably connected to the mounting plate 7.6. There are two mounting plates 7.6, located on both sides of each rack and gear 7.4. Spacer rods 7.5 are installed on the second rack 7.2 and the third rack 7.3. The spacer rods 7.5 and the connected racks are an integral structure, or they can be welded and fixed. Only one cutting tooth can be placed between each spacer rod 7.5. Through holes are opened on the feed pipe 2 for the spacer rods 7.5 to pass through.

[0031] In one embodiment, a limiting plate 14 is provided below the clamping block 11 on the first fixing block 3. The limiting plate 14 and the first fixing block 3 are integrally formed. The upper surface of the limiting plate 14 is an inclined surface that slopes downward toward the second fixing block 4. When the cutting tooth moves from the feed pipe 2 between the first fixing block 3 and the second fixing block 4, the limiting plate 14 and the second fixing block 4 cooperate to support the cutting tooth. When the clamping block 11 clamps the fixed cutting tooth, such as Figure 6 As shown, the cutting teeth inside the feed pipe 2 are all located above the third rack 7.3, increasing the distance between the first fixing block 3 and the second fixing block 4, so that when the cutting teeth between the first fixing block 3 and the second fixing block 4 move downwards, as... Figure 7 As shown, the cutting teeth inside the feed tube are all located above the second rack 7.2. Reducing the distance between the first fixing block 3 and the second fixing block 4, so that the distance between the limiting plate 14 and the second fixing block 4 prevents the cutting teeth from passing through, as shown... Figure 8 As shown, a cutting tooth located between the second rack 7.2 and the third rack 7.3 in the feed tube falls between the first fixing block 3 and the second fixing block 4. The limiting plate 14 cooperates with the second fixing block 4 to support the cutting tooth. The remaining cutting teeth in the feed tube are located above the third rack 7.3 and are restricted from moving by the spacer rod 7.5 connected to the third rack 7.3. This forms a structure in which, after the cutting tooth located between the first fixing block 3 and the second fixing block 4 moves downward, the material control mechanism 7 causes the lowest cutting tooth in the feed tube 2 to fall between the first fixing block 3 and the second fixing block 4.

[0032] In one embodiment, such as Figure 5As shown, the first clamping mechanism 8 includes a clamping plate 8.1, a groove 8.2 on the first fixing block 3, and a first connecting rod 8.3 and a second connecting rod 8.4 rotatably connected between the clamping plate 8.1 and the bottom of the groove 8.2. The connecting lines between the rotating connecting shafts of the first connecting rod 8.3 and the second connecting rod 8.4 form a parallelogram structure. A first elastic element 8.5 made of an elastic material such as a spring is installed between the clamping plate 8.1 and the bottom of the groove 8.2. The two ends of the first elastic element 8.5 are engaged and fixed with the clamping plate 8.1 and the bottom of the groove 8.2. The first clamping mechanism 8 and the second clamping mechanism 9 have the same structure and principle and are symmetrically arranged. Each clamping plate 8.1 can move into the groove 8.2. When the cutting tooth is located between the first fixing block 3 and the second fixing block 4, the first clamping mechanism 8 and the second clamping mechanism 9 are located on both sides of the cutting tooth, reducing the distance between the first fixing block 3 and the second fixing block 4. The distance between the two fixed blocks 4 is such that each clamping plate 8.1 contacts the cutting tooth rod. The distance between the first fixed block 3 and the second fixed block 4 continues to decrease. Through the parallelogram structure, each clamping plate 8.1 moves backward, and the length of the first elastic element 8.5 decreases. Through the action of the first elasticity, each clamping plate 8.1 clamps the cutting tooth rod and moves backward. When the cutting tooth shoulder contacts the surface of each clamping block 11, as the distance between the first fixed block 3 and the second fixed block 4 continues to decrease, the cutting tooth rod slides with the clamping plate 8.1. The cutting tooth shoulder continues to maintain surface contact with each clamping block 11, without affecting the fixing of the cutting tooth by each clamping block 11. This forms a structure in which, when the distance between the first fixed block 3 and the second fixed block 4 decreases, the first clamping mechanism 8 and the second clamping mechanism 9 cooperate to move the cutting tooth so that the cutting tooth shoulder contacts the surface of each clamping block 11.

[0033] In one embodiment, the positioning mechanism 10 includes a mounting shell 10.1, which is fixed in a relative position to the support 1. The mounting shell 10.1 can be directly fixed to the support 1 by bolts or welded to the feed pipe 2, thereby being fixed to the support 1 at intervals. A first plate 10.2, a second plate 10.3, and a third plate 10.4 are slidably connected on the mounting shell 10.1. The third plate 10.4 is located between the first plate 10.2 and the second plate 10.3. A second elastic element made of an elastic material such as a spring is installed between the third plate 10.4 and the first plate 10.2 and the second plate 10.3. The two ends of the second elastic element are in contact with the surfaces of the connected components. The first plate 10.2 and the second plate 10.3 are arranged symmetrically, and the second elastic elements are arranged symmetrically. The plane of symmetry of the first plate 10.2 and the second plate 10.3 and the plane of symmetry of the second elastic elements are the same plane.

[0034] In one embodiment, a first baffle 10.5 is mounted on the first plate 10.2 for contacting the fixing rod 12 on the first fixing block 3; a second baffle 10.6 is mounted on the second plate 10.3 for contacting the fixing rod 12 on the second fixing block 4; a third baffle 10.7 is mounted on the third plate 10.4; and a displacement sensor 10.8 for measuring the distance between the third baffle 10.7 and the positioning point 13 is mounted on the bracket 1. The displacement sensor 10.8 is a suitable component such as a laser displacement sensor. The first plate 10.2 and the first baffle 10.5 are an integral structure, the second plate 10.3 and the second baffle 10.6 are an integral structure, and the third plate 10.4 and the third baffle 10.7 are an integral structure, or they can be fixed with screws. The upper side of the mounting shell 10.1 has an opening for the third baffle 10.7. The mounting housing 10.1 has movable holes on its lower side for the movement of the first baffle 10.5 and the second baffle 10.6. When each clamping block 11 fixes the cutting tooth, the fixing rod 12 on the first fixing block 3 contacts the first baffle 10.5, and the fixing rod 12 on the second fixing block 4 contacts the second baffle 10.6. Through the second elastic element, the symmetrical plane between the left and right sides of the third baffle 10.7 and the symmetrical plane between the clamping blocks 11 on the first fixing block 3 and the clamping blocks 11 on the second fixing block 4 are on the same plane. By measuring the distance between the third baffle 10.7 and the positioning point 13 through the displacement sensor 10.8, the distance between the symmetrical plane between the clamping blocks 11 on the first fixing block 3 and the clamping blocks 11 on the second fixing block 4 and the positioning point 13 can be measured, which facilitates the positioning of the cutting tooth in the left and right direction.

[0035] In one embodiment, the feed pipe 2 is a tubular structure with an internal T-shaped hole. The first fixing block 3 and the second fixing block 4 are located directly below the longitudinal part of the T-shaped hole in the feed pipe 2, so that the cutting tooth can fall into front of each fixing block.

[0036] In one embodiment, the first drive mechanism 5 includes a first telescopic member 5.1, which is a suitable telescopic rod such as an electric spiral telescopic rod. The fixed end of the first telescopic member 5.1 is bolted to the bracket 1, and the movable end of the first telescopic member 5.1 is bolted to the first fixed block 3. Guide rods 5.2 are bolted to the first fixed block 3. There are two guide rods 5.2, and each guide rod 5.2 is slidably connected to the bracket 1. Each guide rod 5.2 is welded to a fixed frame 15, and the fixed frame 15 is welded to the first rack 7.1 in the material control mechanism 7. The first fixed block 3 is moved by the change in the length of the first telescopic member 5.1.

[0037] In one embodiment, the second driving mechanism 6 includes a second telescopic member 6.1, which is a suitable telescopic rod such as an electric spiral telescopic rod. The fixed end of the second telescopic member 6.1 is fixed to the bolt bracket 1, and the moving end of the second telescopic member 6.1 is bolted to the slider 6.2. The slider 6.2 is slidably connected to the bracket 1, and the sliding direction of the slider 6.2 relative to the bracket 1 is perpendicular to the sliding direction of the first fixed block 3 relative to the bracket 1, or it can be arranged at an angle. The slider 6.2 is slidably connected to the second fixed block 4, and the sliding direction of the slider 6.2 relative to the second fixed block 4 is inclined to the sliding direction of the slider 6.2 relative to the bracket 1. A T-slot can be formed on the slider 6.2, and a T-block that mates with the T-slot can be provided on the second fixed block 4, thereby facilitating the relative sliding of the slider 6.2 and the second fixed block 4 and preventing the slider 6.2 and the second fixed block 4 from separating. The second telescopic member 6.1 facilitates the sliding of the second fixed block 4 relative to the bracket 1 by a small amount.

[0038] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A drilling device for producing cutting teeth for a tunneling machine, comprising a support (1) with a fixed relative position, characterized in that: The support (1) is equipped with a feed pipe (2). The support (1) is slidably connected to a first fixing block (3) and a second fixing block (4) below the feed pipe (2). A first driving mechanism (5) for moving the first fixing block (3) is installed between the support (1) and the first fixing block (3). A material control mechanism (7) is installed on the support (1). After the cutting tooth located between the first fixing block (3) and the second fixing block (4) moves downward, the material control mechanism (7) causes the lowest cutting tooth in the feed pipe (2) to fall into the space between the first fixing block (3) and the second fixing block (4). Clamping blocks (11) are provided on the first fixing block (3) and the second fixing block (4). Each clamping block (11) is symmetrically arranged. A first clamping mechanism (8) is provided between each clamping block (11) on the first fixing block (3). A second clamping mechanism (9) is provided between each clamping block (11) to form a structure in which the first clamping mechanism (8) and the second clamping mechanism (9) cooperate to move the cutting teeth so that the cutting tooth shoulder contacts the surface of each clamping block (11) when the distance between the first fixed block (3) and the second fixed block (4) decreases. Fixing rods (12) are installed on the first fixed block (3) and the second fixed block (4). A positioning point (13) is provided on the bracket (1). A measuring mechanism (10) is installed between each fixed rod (12) on the bracket (1) to measure the distance between the symmetrical plane of the clamping block (11) on the first fixed block (3) and the clamping block (11) on the second fixed block (4) and the positioning point (13) when the cutting teeth of each clamping block (11) are fixed. A second driving mechanism (6) for moving the second fixed block (4) is installed between the bracket (1) and the second fixed block (4). The material control mechanism (7) includes a first rack (7.1), which is fixed relative to the first fixed block (3). Parallel mounting plates (7.6) are mounted on the bracket (1). A second rack (7.2) and a third rack (7.3) are slidably connected between the mounting plates (7.6). The second rack (7.2) is located between the first rack (7.1) and the third rack (7.3). Gears (7.4) meshing with the second rack (7.2) and the first rack (7.1) and the third rack (7.3) are installed. Each gear (7.4) is rotatably connected to the mounting plate (7.6). Spacer rods (7.5) are installed on the second rack (7.2) and the third rack (7.3). A through hole for the spacer rods (7.5) to pass through is opened on the feed pipe (2). The positioning mechanism (10) includes a mounting shell (10.1), which is fixed relative to the bracket (1). A first plate (10.2), a second plate (10.3), and a third plate (10.4) are slidably connected on the mounting shell (10.1). The third plate (10.4) is located between the first plate (10.2) and the second plate (10.3). A second elastic element made of elastic material is installed between the third plate (10.4) and the first plate (10.2) and the second plate (10.3). The first plate (10.2) and the second plate (10.3) are symmetrically arranged, and each of the second elastic elements is symmetrically arranged. The plane of symmetry of the first plate (10.2) and the second plate (10.3) and the plane of symmetry of each of the second elastic elements are the same plane. A first baffle (10.5) for contacting the fixing rod (12) on the first fixing block (3) is installed on the first plate (10.2), a second baffle (10.6) for contacting the fixing rod (12) on the second fixing block (4) is installed on the second plate (10.3), a third baffle (10.7) is installed on the third plate (10.4), and a displacement sensor (10.8) for measuring the distance between the third baffle (10.7) and the positioning point (13) is installed on the bracket (1).

2. The drilling device for producing cutting teeth for tunneling machines according to claim 1, characterized in that: The first fixing block (3) has a limiting plate (14) below the clamping block (11). The upper surface of the limiting plate (14) is an inclined surface that slopes downward toward the second fixing block (4). When the cutting tooth moves from the feed pipe (2) to between the first fixing block (3) and the second fixing block (4), the limiting plate (14) and the second fixing block (4) cooperate to support the cutting tooth.

3. The drilling device for producing cutting teeth for tunneling machines according to claim 1, characterized in that: The first clamping mechanism (8) includes a clamping plate (8.1), and a groove (8.2) is provided on the first fixing block (3). A first connecting rod (8.3) and a second connecting rod (8.4) are rotatably connected between the clamping plate (8.1) and the bottom of the groove (8.2). The line connecting the rotatable connecting shafts of the first connecting rod (8.3) and the second connecting rod (8.4) forms a parallelogram structure. A first elastic element (8.5) made of elastic material is installed between the clamping plate (8.1) and the bottom of the groove (8.2). The first clamping mechanism (8) and the second clamping mechanism (9) have the same structure and principle and are arranged symmetrically.

4. The drilling device for producing cutting teeth for tunneling machines according to claim 1, characterized in that: The feed pipe (2) is a tubular structure with a T-shaped hole inside. The first fixing block (3) and the second fixing block (4) are located directly below the longitudinal part of the T-shaped hole in the feed pipe (2).

5. The drilling device for producing cutting teeth for tunneling machines according to claim 1, characterized in that: The first driving mechanism (5) includes a first telescopic member (5.1), the fixed end of the first telescopic member (5.1) is fixedly connected to the bracket (1), the moving end of the first telescopic member (5.1) is fixedly connected to the first fixed block (3), the first fixed block (3) is fixedly connected to the guide rod (5.2), each of the guide rods (5.2) is slidably connected to the bracket (1), each of the guide rods (5.2) is fixedly connected to the fixing frame (15), and the fixing frame (15) is fixedly connected to the first rack (7.1) in the material control mechanism (7).

6. The drilling device for producing cutting teeth for tunneling machines according to claim 1, characterized in that: The second driving mechanism (6) includes a second telescopic member (6.1). The fixed end of the second telescopic member (6.1) is fixedly connected to the bracket (1), and the moving end of the second telescopic member (6.1) is fixedly connected to the slider (6.2). The slider (6.2) is slidably connected to the bracket (1). The sliding direction of the slider (6.2) relative to the bracket (1) is perpendicular or inclined to the sliding direction of the first fixed block (3) relative to the bracket (1). The slider (6.2) is slidably connected to the second fixed block (4). The sliding direction of the slider (6.2) relative to the second fixed block (4) is inclined to the sliding direction of the slider (6.2) relative to the bracket (1).

Images