Automatic positioning device for track plate steel mold production

Abstract

The invention relates to an automatic positioning device for track plate steel mold production, and relates to the technical field of track plate production equipment.The automatic positioning device comprises a base, a machine frame is installed on the base, a steel mold is arranged on the base in a sliding mode, the steel mold moves to the position below the machine frame through sliding, a lifting table is installed on the machine frame, and the lifting table is arranged on the machine frame in a sliding mode; the lifting table slides towards the direction close to or away from the base, a plurality of installation blocks are arranged on the side, facing the base, of the lifting table in a circumferential sliding mode, the installation blocks slide in the circumferential direction of the lifting table, distance sensors are arranged between the installation blocks, and installation holes are formed in the sides, facing the base, of the installation blocks; and the baffle slides to open or close the opening of the mounting hole. The device has the effect of conveniently clamping and positioning the reinforcing steel bars when the track plate is poured.

Description

Technical Field

[0001] This application relates to the field of track slab production equipment, and in particular to an automatic positioning device for producing track slab steel molds. Background Technology

[0002] Track slab steel molds are key tooling equipment in the prefabrication process of ballastless track slabs for high-speed railways. They are mainly used to ensure the dimensional accuracy, appearance quality, reinforcement positioning, and accuracy of embedded parts of the track slabs during concrete pouring and forming.

[0003] When using steel molds for track slab production, reinforcing bars are first placed and tied inside the mold. Then, track mounting components are placed inside the mold, and finally, concrete is poured to fill the mold. After the concrete hardens, the side plates of the mold are removed, and the formed track slab is taken out. Existing track slab production processes require controlling the spacing and density of the reinforcing bars to ensure the structural strength of the cast track slab. Given the large number of reinforcing bars, manually controlling their spacing is quite difficult. Summary of the Invention

[0004] To facilitate the clamping and positioning of reinforcing bars during the casting of track slabs, this application provides an automatic positioning device for the production of track slab steel molds.

[0005] The automatic positioning device for producing track slab steel molds provided in this application adopts the following technical solution: An automatic positioning device for producing track slab steel molds includes a base, a frame mounted on the base, a steel mold slidably disposed on the base, the steel mold being moved to below the frame by sliding, a lifting platform mounted on the frame, the lifting platform being slidably disposed on the frame, the lifting platform sliding towards or away from the base, a plurality of mounting blocks being circumferentially disposed on the side of the lifting platform facing the base, the mounting blocks sliding along the circumference of the lifting platform, distance sensors being disposed between the mounting blocks, mounting holes being opened on the side of the mounting blocks facing the base, and baffles being slidably disposed on the mounting blocks, the baffles sliding to open or close the openings of the mounting holes.

[0006] By adopting the above technical solution, the mounting holes of the mounting blocks are used to insert and place reinforcing bars. The number of mounting blocks in the length and width directions of the lifting platform can be adjusted by the sliding of the mounting blocks around the lifting platform, and the spacing between the mounting blocks can also be adjusted. Thus, the mounting blocks are distributed on the lifting platform according to actual needs and are used to position the reinforcing bars for binding the reinforcing cage. Subsequently, the reinforcing bars are bound on the lifting platform, and the bound reinforcing bars are sent into the steel mold below the frame through the lifting platform, which facilitates the clamping and positioning of the reinforcing bars when pouring the track slab.

[0007] Optionally, the lifting platform is provided with an annular slide groove, the mounting block is provided with a sliding block, the sliding block is slidably disposed in the annular slide groove, the side walls of the annular slide groove are provided with track grooves, and rollers are rotatably disposed on both sides of the sliding block, the rollers roll in the track grooves, and a power component is installed on the sliding block, the power component drives the rollers to rotate.

[0008] Optionally, the sliding block is provided with a positioning piece that slides toward the bottom of the annular groove, and the positioning piece slides to abut against or detach from the bottom of the annular groove.

[0009] Optionally, the mounting block is hinged to the sliding block, and the mounting block abuts against the side of the lifting platform facing the base by rotation.

[0010] Optionally, the steel mold includes a base plate and side plates. The base plate is slidably disposed on the base, and there are four side plates, which are slidably disposed around the base plate.

[0011] Optionally, a drive disk is rotatably mounted inside the base plate, and four drive rods are eccentrically hinged to the drive disk. The ends of the four drive rods away from the drive disk are respectively hinged to four side plates.

[0012] Optionally, a drive torsion spring is provided between the drive disk and the base plate, and the drive torsion spring drives the drive disk to rotate, causing the side plate to abut against the base plate.

[0013] Optionally, the base is provided with a rotating component below the frame, and the rotating component is connected to the drive disk when the steel mold slides to the bottom of the frame.

[0014] Optionally, a guide rod is fixedly provided on the side plate, and the guide rod is slidably inserted into the base plate.

[0015] Optionally, a conveyor belt is provided on the base for conveying steel molds along the length of the base.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. The number of installation blocks in the length and width directions of the lifting platform can be adjusted by sliding the installation blocks around the circumference of the lifting platform. The spacing between the installation blocks can also be adjusted, so that the installation blocks can be distributed on the lifting platform according to actual needs. They are used to position the steel bars for binding the steel cage. Subsequently, the steel bars are bound on the lifting platform and then sent into the steel mold below the frame through the lifting platform, which facilitates the positioning of the steel bars when pouring the track slab. 2. The rollers are driven by a power component to rotate, which drives the sliding block to move along the lifting platform with the mounting block, thereby realizing the automatic adjustment of the mounting block. In conjunction with a distance sensor, the position of the mounting block is automatically adjusted and positioned. When the positioning piece slides and abuts against the bottom of the annular groove, it can generate abutment force and friction force with the bottom of the groove, thereby limiting the probability of the sliding block sliding under external force, so as to ensure the fixation of the mounting block after positioning. When the positioning block slides away from the bottom of the annular groove, the friction force and abutment force between the positioning block and the annular groove are released, and the sliding block can slide normally in the annular groove. In order to increase the friction force, an elastic rubber pad can be set on the side of the positioning block abutting against the bottom of the annular groove. The deformation generated by the compression of the elastic rubber pad further increases the friction force when the positioning block and the bottom of the annular groove abut against each other. 3. By rotating the installation block, the installation block is placed flat on the lifting platform, so that excess installation blocks will not affect the placement of the reinforcing bars; the opening of the disassembly port can add installation blocks to the lifting platform when there are fewer installation blocks than the number of reinforcing bars to be installed, and can also remove the installation blocks when there are too many installation blocks and they affect the normal installation of the reinforcing bars; the sliding part can adjust the installation position of the reinforcing bars in the horizontal and vertical directions of the lifting platform, so that the reinforcing bars in the horizontal and vertical directions of the lifting platform can be staggered, reducing interference when the reinforcing bars are fixed. 4. The sliding of the side plates on the base plate facilitates demolding after the track plate is cast and formed. The rotation of the drive plate can simultaneously drive the four side plates to slide against or detach from the base plate, thus facilitating the driving of the side plates. 5. The connection between the rotating motor and the drive plate is achieved by inserting polygonal plugs into polygonal holes. The rotating motor drives all side plates to slide away from the base plate. The displacement sensor detects the sliding of the lifting platform and, combined with the height of the frame and the position of the steel mold, calculates the height of the reinforcing bar to be placed in the steel mold. This allows for the positioning of the bundled reinforcing bar within the steel mold. Once the bundled reinforcing bar is placed at the specified height in the steel mold, the drive side plate abuts against the base plate to clamp the bundled reinforcing bar. At this time, the drive baffle slides to open the mounting hole, allowing the bundled reinforcing bar to detach from the mounting block and be fixed inside the steel mold, thus facilitating the positioning and installation of the reinforcing bar within the steel mold. 6. The mounting component is positioned and installed by adsorbing the base plate with the magnet embedded in the mounting component. After the track slab is cast and formed, the magnet in the mounting component is removed. The embedded magnet can reduce the probability of concrete entering the insertion hole during pouring and can also be used to fix the mounting component. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the structure of the mounting block in an embodiment of this application.

[0019] Figure 3 This is a cross-sectional view of the overall structure of an embodiment of this application.

[0020] Figure 4 yes Figure 2 A magnified view of section A in the middle.

[0021] Figure 5 This is a schematic diagram from another perspective of the overall structural cross-sectional view of an embodiment of this application.

[0022] Figure 6 yes Figure 2 A magnified view of section B in the middle.

[0023] Figure 7 yes Figure 5 A magnified view of section C.

[0024] In the diagram, 1. Base; 2. Frame; 201. Support rod; 202. Mounting plate; 3. Steel mold; 301. Base plate; 302. Side plate; 4. Lifting platform; 5. Mounting block; 51. Mounting part; 52. Sliding part; 6. Distance sensor; 7. Mounting hole; 8. Baffle; 9. Annular chute; 10. Sliding block; 11. Track groove; 12. Roller; 13. Power component; 14. Positioning piece; 15. Disassembly / assembly port; 16. Disassembly / assembly block; 17. Drive disc; 18. Drive rod; 19. Drive torsion spring; 20. Guide rod; 21. Rotating component; 211. Lifting electric cylinder; 212. Rotating motor; 22. Polygonal insertion hole; 23. Polygonal insertion block; 24. Conveyor belt. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-7 The present application will be further described with reference to specific embodiments: First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This application discloses an automatic positioning device for producing track slab steel molds, referring to... Figure 1 The system includes a base 1 placed on the ground, with a frame 2 mounted in the middle of the base 1. In this embodiment, the frame 2 is a portal frame. The frame 2 includes support rods 201 and mounting plates 202. The support rods 201 are fixed to both sides of the base 1, and the mounting plates 202 are mounted between the support rods 201 on both sides of the base 1. A steel mold 3 is slidably mounted on the base 1. The steel mold 3 is used for casting track slabs. The steel mold 3 is moved to the bottom of the frame 2 by sliding. A lifting platform 4 is mounted on the frame 2. The lifting platform 4 is slidably mounted on the frame 2. In this embodiment, the lifting platform 4 is driven by an electric cylinder mounted on the frame 2. The electric cylinder drives the lifting platform 4 to slide towards or away from the base 1. Several mounting blocks 5 are slidably mounted on the side of the lifting platform 4 facing the base 1. The mounting blocks 5 slide around the circumference of the lifting platform 4. Distance sensors 6 are arranged between the mounting blocks 5. A mounting hole 7 is provided on one side, and a baffle 8 is slidably installed on the mounting block 5. The baffle 8 slides to open or close the opening of the mounting hole 7. In this embodiment, the baffle 8 is driven by an electric cylinder to slide on the mounting block 5. The mounting hole 7 of the mounting block 5 is used to insert and place reinforcing bars. The reinforcing bars can be inserted into the mounting hole 7 from one side of the mounting block 5, or the reinforcing bars can be placed into the mounting hole 7 by opening the baffle 8 and then the mounting hole 7 can be closed by the baffle 8 to fix the reinforcing bars. The number of mounting blocks 5 in the length and width directions of the lifting platform 4 can be adjusted by sliding the mounting block 5 around the lifting platform 4, and the spacing between the mounting blocks 5 can also be adjusted. Thus, the mounting blocks 5 are distributed on the lifting platform 4 according to actual needs and are used to position the reinforcing bars for binding the reinforcing cage. Subsequently, the reinforcing bars are bound on the lifting platform 4 and the bound reinforcing bars are sent into the steel mold 3 below the frame through the lifting platform 4, which facilitates the positioning of the reinforcing bars when pouring the track slab.

[0027] Reference Figure 1An annular groove 9 is provided on the lifting platform 4, extending circumferentially. A sliding block 10 is provided on the mounting block 5, sliding within the annular groove 9. In this embodiment, the annular groove 9 corresponds to the overall rectangular shape of the lifting platform 4, with a circular transition at the reversal point, thereby reducing the probability of the sliding block 10 jamming due to excessive turning radius. Track grooves 11 are provided on both side walls of the annular groove 9, and rollers 12 are rotatably mounted on both sides of the sliding block 10, rolling within the track grooves 11. A power component 13 is installed on the sliding block 10. In this embodiment, the power component 13 is a motor, which drives the rollers 12 to rotate. The rotation of the rollers 12 by the power component 13 drives the sliding block 10, carrying the mounting block 5, to move on the lifting platform 4, thereby achieving automated adjustment of the mounting block 5. This works in conjunction with the distance sensor 6. The installation block 5 is automatically adjusted and positioned. A positioning piece 14 is provided on the sliding block 10 facing the bottom of the annular groove 9. The positioning piece 14 slides to abut against or detach from the bottom of the annular groove 9. In this embodiment, the positioning piece 14 is driven by an electric cylinder. When the positioning piece 14 slides to abut against the bottom of the annular groove 9, it can generate abutment force and friction with the bottom of the groove, thereby limiting the probability of the sliding block 10 sliding under external force, so as to ensure the fixation of the installation block 5 after positioning. When the positioning block slides to detach from the bottom of the annular groove 9, the friction and abutment force between the positioning block and the annular groove 9 are released, and the sliding block 10 can slide normally in the annular groove 9. In order to increase the friction, an elastic rubber pad can be provided on the side of the positioning block abutting against the bottom of the annular groove 9. The deformation generated by the compression of the elastic rubber pad further increases the friction when the positioning block and the bottom of the annular groove 9 abut against each other.

[0028] Reference Figure 1 and Figure 4The mounting block 5 is hinged to the sliding block 10. The mounting block 5 rotates and abuts against the side of the lifting platform 4 facing the base 1. When the total number of mounting blocks 5 exceeds the number of steel bars to be installed, the mounting blocks 5 are rotated to place them flat on the lifting platform 4, so that the excess mounting blocks 5 will not affect the placement of the steel bars. In this embodiment, the mounting blocks 5 are driven by a motor to rotate on the sliding block 10. The lifting platform 4 is provided with a disassembly port 15, which is connected to the annular groove 9. The sliding block 10 passes through the disassembly port 15. 5. A disassembly / assembly block 16 is detachably installed at the disassembly / assembly port 15, allowing the disassembly / assembly port 15 to close after the disassembly / assembly block 16 is installed, and to open after the disassembly / assembly block 16 is removed. The opening of the disassembly / assembly port 15 allows for the addition of more installation blocks 5 to the lifting platform 4 when the number of installation blocks 5 is less than the number of reinforcing bars to be installed, and also allows for the removal of installation blocks 5 when too many installation blocks 5 interfere with the normal installation of the reinforcing bars. The installation block 5 includes an installation part 51 and a sliding part 52. The installation part 51 is hinged to the sliding block 10. The sliding part 52 is slidably disposed on the mounting part 51, and the mounting hole 7 is opened in the sliding part 52. The sliding part 52 is driven by an electric cylinder to slide on the mounting part 51. The sliding part 52 can adjust the installation position of the steel bars on the horizontal and vertical sides of the lifting platform 4, so that the steel bars on the horizontal and vertical sides of the lifting platform 4 can be staggered, reducing interference when the steel bars are fixed. A battery and a wireless signal receiving feedback device can be installed in the sliding block 10 to realize the power supply and electric drive of the electrical appliances in the sliding block 10. Two metal conductive plates can also be set along the bottom of the annular slide groove 9 to connect the two ends of the circuit. By setting a guide on the sliding block 10 to connect the circuit between the lifting platform 4 and the sliding block 10, the power supply and control of the electrical appliances on the sliding block 10 can be realized. When the control method of circuit docking between the lifting platform 4 and the sliding block 10 is adopted, the side of the lifting platform 4 away from the sliding block 10 needs to be equipped with control equipment and battery or connected to control equipment and power supply through a line.

[0029] Reference Figure 1 and Figure 4The steel mold 3 includes a rectangular base plate 301 and four side plates 302 respectively disposed around the base plate 301. The base plate 301 is slidably disposed on the base 1, and the four side plates 302 are slidably disposed around the base plate 301. The side plates 302 and the base plate 301 are separated after the track plate is cast and formed by the sliding of the side plates 302 on the base plate 301, which facilitates demolding after the track plate is cast and formed. A drive disk 17 is rotatably disposed inside the base plate 301. Four drive rods 18 are eccentrically hinged on the drive disk 17. The ends of the four drive rods 18 away from the drive disk 17 are respectively hinged to the four side plates 302. The rotation of the drive disk 17 can simultaneously drive the four side plates 302 to slide against or detach from the base plate 301, thereby facilitating the driving of the side plates 302. The drive disk 17 and the base plate 301 A drive torsion spring 19 is provided between the two plates. The drive torsion spring 19 drives the drive disk 17 to rotate, causing the side plate 302 to abut against the base plate 301. The torsion spring can drive the side plate 302 to abut against the base plate 301 under normal conditions, forming the mold cavity of the steel mold 3, reducing the probability that the side plate 302 will be driven to slide away from the base plate 301 during casting. A guide rod 20 is fixed on the side plate 302 and slides into the base plate 301. The guide rod 20 can guide the sliding of the side plate 302, making the sliding of the side plate 302 smoother and reducing the probability of the side plate 302 deflecting during the sliding process. In this embodiment, four support rods 201 are provided on the frame 2. The four support rods 201 avoid the position where the side plate 302 slides towards the width direction of the base 1, thereby reducing the interference to the sliding of the side plate 302.

[0030] Reference Figure 1 and Figure 4A rotating component 21 is provided below the frame 2 on the base 1. The rotating component 21 includes a lifting cylinder 211 and a rotating motor 212. The lifting cylinder 211 is installed on the base 1, and the rotating motor 212 is installed on the lifting cylinder 211. When the steel mold 3 slides below the frame 2, the lifting cylinder 211 drives the rotating motor 212 to slide and connect to the drive plate 17. The drive plate 17 has a polygonal insertion hole 22. A polygonal plug 23 is fixed on the rotating shaft of the rotating motor 212. The polygonal plug 23 is adapted to the polygonal insertion hole 22. The connection between the rotating motor 212 and the drive plate 17 is achieved by inserting the polygonal plug 23 into the polygonal insertion hole 22. The rotation of the rotating motor 212 drives all the side plates 302 to slide and detach from the base plate 301. A displacement sensor is provided between the frame 2 and the lifting platform 4. The displacement sensor detects the sliding of the lifting platform 4 and combines it with the height of the frame 2 and the steel mold 3. The position of mold 3 allows for the calculation of the height at which the reinforcing bar is placed in the steel mold 3, thereby positioning the height of the bundled reinforcing bar within the steel mold 3. Once the bundled reinforcing bar is placed at the specified height in the steel mold 3, the drive side plate 302 abuts against the bottom plate 301 to clamp the bundled reinforcing bar. At this time, the drive baffle 8 slides to open the mounting hole 7, allowing the bundled reinforcing bar to detach from the mounting block 5 and be fixed inside the steel mold 3, thus facilitating the positioning and installation of the reinforcing bar at the specified height within the steel mold 3. In this embodiment, the bottom plate 301 facing the lifting platform 4 is made of magnetic material. The mounting component of the mounting rail is used to detachably embed magnets in the insertion hole of the mounting rail. The mounting component is positioned and installed by adsorbing the magnet embedded in the mounting component onto the bottom plate 301. After the subsequent track plate is cast and formed, the magnets in the mounting component are removed. The embedding of the magnets can reduce the probability of concrete entering the insertion hole during pouring and can also be used to fix the mounting component.

[0031] Reference Figure 1 and Figure 4 A conveyor belt 24 is installed on the base 1. The conveyor belt 24 transports the steel mold 3 along the length of the base 1. The conveyor belt 24 can transport the steel mold, which is convenient for the steel mold to be sent into the bottom of the frame 2 for the placement of the reinforcing bars. It can also be convenient for the steel mold to be sent out of the frame 2 for subsequent construction after the reinforcing bars are placed. In this embodiment, two conveyor belts 24 are provided. The two conveyor belts 24 are respectively set on both sides of the width direction of the base 1, thereby avoiding the rotating part 21 on the base 1 and reducing the impact on the docking of the rotating part 21 and the drive disk 17.

[0032] The implementation principle of this application embodiment is as follows: The mounting blocks 5 are slidable according to the required number of reinforcing bars, adjusting the number and position of the mounting blocks 5 on the lifting platform 4. Unused mounting blocks 5 are rotated and fitted onto the lifting platform 4. When there are too many or too few mounting blocks 5, the disassembly port is opened to remove or supplement them. After the position of the mounting blocks 5 is adjusted, the sliding part 52 of the mounting block 5 in the width direction of the lifting platform 4 is driven to slide and misalign with the mounting hole 7 on the mounting block 5 in the length direction of the lifting platform 4. Reinforcing bars are placed in the mounting holes 7 manually or by a robot. After the reinforcing bars are placed, the mounting holes 7 are closed by the baffle 8 to clamp and fix them. After all the reinforcing bars in the mounting holes 7 are placed, the reinforcing bars are tied manually or by a robot. At the same time, the steel mold 3 is placed on the input side of the base 1, and the steel mold 3 is sent to the bottom of the frame 2 by the conveyor belt 24. When the steel mold 3 is sent to the bottom of the frame 2, the rotating motor 212 is driven to slide by the lifting cylinder 211, causing the rotating motor 212 to... The polygonal insert 23 on the output shaft is inserted into the polygonal socket 22 of the drive disk 17. Then, the rotating motor 212 drives the drive disk 17 to rotate, causing the side plate 302 to slide away from the base plate 301. After the lifting platform 4 slides, the bundled steel bars are placed at a specified height in the steel mold 3. The drive side plate 302 slides and abuts against the base plate 301, clamping the bundled steel bars and fixing them. Then, the drive rotating motor 212 disengages from the drive disk 17, and the steel mold 3 containing the steel bars is transported to the output end of the base 1 via the conveyor belt 24. After the installation parts are positioned at the output end, they are sent to the pouring area to pour concrete. After the concrete solidifies, the drive disk 17 is rotated to drive the side plate 302 to slide away from the base plate 301 to open the mold. Then, the formed track plate is taken out, the magnet in the installation parts is taken out, and after correction and other post-processing, the production of the track plate is completed. After the track plate is laid, the sockets on the installation parts are used for track installation.

[0033] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. An automatic positioning device for producing track slab steel molds, characterized in that: Includes a base (1), on which a frame (2) is mounted, and a steel mold (3) is slidably mounted on the base (1). The steel mold (3) is slidably moved to the bottom of the frame (2). A lifting platform (4) is mounted on the frame (2). The lifting platform (4) is slidably mounted on the frame (2). The lifting platform (4) slides toward or away from the base (1). Several mounting blocks (5) are slidably mounted on the side of the lifting platform (4) toward the base (1). The mounting blocks (5) slide around the lifting platform (4). A distance sensor (6) is provided between the mounting blocks (5). Mounting holes (7) are opened on the side of the mounting blocks (5) toward the base (1). A baffle (8) is slidably mounted on the mounting blocks (5). The baffle (8) slidably opens or closes the opening of the mounting holes (7).

2. The automatic positioning device for producing track slab steel molds according to claim 1, characterized in that: The lifting platform (4) is provided with an annular slide groove (9), and the mounting block (5) is provided with a sliding block (10). The sliding block (10) is slidably disposed in the annular slide groove (9). Track grooves (11) are provided on both sides of the annular slide groove (9). Rollers (12) are rotatably disposed on both sides of the sliding block (10). The rollers (12) roll in the track grooves (11). A power component (13) is installed on the sliding block (10). The power component (13) drives the rollers (12) to rotate.

3. The automatic positioning device for producing track slab steel molds according to claim 2, characterized in that: The sliding block (10) is provided with a positioning piece (14) that slides toward the bottom of the annular groove (9). The positioning piece (14) slides to abut against or detaches from the bottom of the annular groove (9).

4. The automatic positioning device for producing track slab steel molds according to claim 3, characterized in that: The mounting block (5) is hinged to the sliding block (10), and the mounting block (5) abuts against the lifting platform (4) on the side facing the base (1) by rotation.

5. The automatic positioning device for producing track slab steel molds according to claim 4, characterized in that: The steel mold (3) includes a base plate (301) and side plates (302). The base plate (301) is slidably disposed on the base (1). There are four side plates (302), which are slidably disposed around the base plate (301).

6. The automatic positioning device for producing track slab steel molds according to claim 5, characterized in that: A drive plate (17) is rotatably mounted inside the base plate (301). Four drive rods (18) are eccentrically hinged on the drive plate (17). The ends of the four drive rods (18) away from the drive plate (17) are respectively hinged to four side plates (302).

7. An automatic positioning device for producing track slab steel molds according to claim 6, characterized in that: A drive torsion spring (19) is provided between the drive disk (17) and the base plate (301). The drive torsion spring (19) drives the drive disk (17) to rotate, causing the side plate (302) to abut against the base plate (301).

8. An automatic positioning device for producing track slab steel molds according to claim 7, characterized in that: The base (1) is provided with a rotating part (21) below the frame (2). When the steel mold (3) slides to the bottom of the frame (2), the rotating part (21) is connected to the drive disk (17).

9. An automatic positioning device for producing track slab steel molds according to claim 8, characterized in that: A guide rod (20) is fixed on the side plate (302), and the guide rod (20) is slidably inserted into the bottom plate (301).

10. An automatic positioning device for producing track slab steel molds according to claim 9, characterized in that: The base (1) is equipped with a conveyor belt (24), which conveys the steel mold (3) along the length of the base (1).

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