Plate punching machine tool for producing steel furniture

Abstract

A plate punching machine tool for producing steel furniture comprises a mounting platform, a plurality of punching mechanisms distributed in the plate conveying direction and a shearing die are arranged on the mounting platform, and each punching mechanism comprises at least one punching unit and a driving unit used for driving the punching unit to move in the direction perpendicular to the plate conveying direction; the stamping unit comprises a die frame connected with the installation platform in a sliding mode and a stamping die installed in the die frame, a hydraulic cylinder used for pushing the stamping die to be closed is arranged on the die frame, the position relation between the dies can be adjusted conveniently, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel plate stamping technical field, specifically speaking, a kind of plate stamping machine for producing steel furniture. BACKGROUND

[0002] Steel plate is used to manufacture the main material of steel furniture, after a series of processing such as stamping, shearing and bending, steel plate can be made into cabinet door and cabinet body and other parts of steel furniture. Among them, the stamping process of steel plate is, first, cutting out the required length of sheet material from coil stock, then, sheet material is placed on different molds for punching, since the size of file cabinet is different, the size of steel plate is also different, i.e. multiple sets of molds are needed for production, which increases production cost;For large size steel plate, the volume of required mold is large, which is not convenient to install and disassemble;At the same time, when adjusting the position of mold, the mold needs to be disassembled from the machine tool for adjustment, and the adjustment process is complicated. SUMMARY

[0003] In order to solve the problem of complicated mold adjustment process and large volume in the prior art, the utility model provides a plate stamping machine for producing steel furniture, which is convenient for adjusting the position relationship between molds and reduces production cost.

[0004] In order to achieve the above purpose, the utility model adopts the following specific scheme: a plate stamping machine for producing steel furniture, characterized by comprising an installation platform, a plurality of stamping mechanisms and a shearing die are arranged on the installation platform along a straight line, each stamping mechanism comprises at least one stamping unit and a driving unit for driving the stamping unit to move vertically to the conveying direction of the plate, the stamping unit comprises a mold frame slidingly connected with the installation platform and a stamping die installed in the mold frame, and a hydraulic cylinder is arranged on the mold frame for pushing the stamping die to close.

[0005] As an optimization scheme of the above-mentioned plate stamping machine for producing steel furniture, the stamping mechanism further comprises two sliding rails fixedly connected with the installation platform and parallel to each other, the extension direction of the sliding rail is perpendicular to the conveying direction of the plate, and a sliding block fixedly connected with the mold frame is slidingly connected on the sliding rail.

[0006] As another optimization scheme of the above-mentioned plate stamping machine for producing steel furniture, the mold frame is fixedly connected with a power connecting block, the driving mechanism comprises a lead screw corresponding to the stamping unit, both ends of the lead screw are rotatably connected with the installation platform through a rotary support assembly, the lead screw passes through the power connecting block and can drive the power connecting block to reciprocate.

[0007] As another optimized solution for the above-mentioned sheet metal stamping machine for producing steel furniture: each stamping mechanism includes two stamping units, the driving mechanism includes a first lead screw and a second lead screw corresponding to the two stamping units, a power connecting block is fixedly connected to the mold frame, and the first lead screw and the second lead screw pass through the corresponding power connecting block and can drive the power connecting block to reciprocate.

[0008] As another optimized solution for the sheet metal stamping machine tool used to produce steel furniture, the end of the second lead screw is coaxially fixedly connected to a guide rod, and the guide rod extends to the side of the first lead screw.

[0009] As another optimized solution for the sheet metal stamping machine tool used to produce steel furniture, the mold frame has a feed groove on its side wall, and the openings of the two feed grooves in a stamping mechanism are arranged opposite to each other and connected.

[0010] As another optimized solution for the sheet metal stamping machine tool used to produce steel furniture mentioned above: the mold frame includes two oppositely arranged side plates, and a top plate and a bottom plate are respectively provided at the top and bottom of the side plates. The top plate, the bottom plate and the two side plates enclose a receiving space for accommodating the stamping mold; the top plate is provided with a sensing plate that can move synchronously along the piston rod of the hydraulic cylinder, and two sensors that can sense the position of the sensing plate and are distributed along the direction of piston rod movement.

[0011] As another optimized solution for the sheet metal stamping machine tool used to produce steel furniture mentioned above: a slide rod is slidably arranged on the top plate, the top end of the slide rod is located above the top plate and is fixedly connected to the induction plate, and the bottom end of the slide rod is located below the top plate and is connected to the piston rod.

[0012] As another optimized solution for the sheet metal stamping machine tool used to produce steel furniture mentioned above: a movable plate is fixedly connected to the bottom end of the slide rod, a push plate is fixedly sleeved on the piston rod, the movable plate is located below the push plate and on the push plate's movement trajectory; a spring is sleeved on the part of the slide rod located between the sensing plate and the top plate to push the sensing plate upward.

[0013] As another optimized solution for the above-mentioned sheet metal stamping machine tool for producing steel furniture: the stamping machine tool further includes a steel plate guiding mechanism located in front of the stamping mechanism. The steel plate guiding mechanism includes a positioning component and two parallel fixed plates for fixed connection with the mounting platform. The positioning component includes a third lead screw and a positioning block. The third lead screw is rotatably connected to one of the fixed plates and extends toward the other fixed plate. The third lead screw passes through the positioning block and can drive the positioning block to reciprocate horizontally. Guide rods that can pass through the positioning block and are fixedly connected to the fixed plates are provided on both sides of the third lead screw. A guide block is sleeved at the center of the guide rod. The horizontal position of the guide block is higher than the horizontal position of the third lead screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a sheet metal stamping machine for producing steel furniture. The number of stamping units is adjusted and combined according to the size of the workpiece. The stamping units are moved by a drive mechanism, thereby adjusting their positions to accommodate steel plates of different widths. This utility model has a wide range of applications and can reduce production costs. Furthermore, the stamping units can be adjusted individually without removing them from the machine, simplifying the adjustment process and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure within the installation platform of this utility model;

[0017] Figure 2 This is a top view of the mounting platform in this utility model;

[0018] Figure 3 This is a schematic diagram of the drive unit in this utility model;

[0019] Figure 4 This is a structural schematic diagram of the mold frame;

[0020] Figure 5 This is a schematic diagram of the stamping unit;

[0021] Figure 6 This is a sectional view of the mold frame;

[0022] Reference numerals: 1. Mounting platform; 101. Mounting plate; 102. Slide rail; 2. Steel plate guide mechanism; 201. Fixing plate; 202. Third lead screw; 203. Positioning block; 204. Guide rod; 205. Guide block; 3. Mold frame; 301. Slider; 302. Hydraulic cylinder; 303. First discharge hole; 304. Power connection block; 305. Material passage; 306. Mounting hole; 4. Material guide; 5. Shearing mold; 6. Sensing plate; 601. Slide rod; 602. Spring; 603. Moving plate; 7. Sensor; 701. Fixing piece; 702. Long slot; 8. First lead screw; 801. First rotary support assembly; 9. Second lead screw; 901. Second rotary support assembly; 902. Smooth rod; 903. Third rotary support assembly; 10. Guide plate; 11. Push plate. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art, such as the structure of the shearing mold 5, how the control unit obtains the sensing signal of the sensor 7, how the control unit controls the piston rod to change the direction of movement, how the steel plate guiding mechanism 2 is installed on the installation platform 1, and the structure of the material guide 4, etc.

[0024] Example 1

[0025] A sheet metal stamping machine for producing steel furniture includes a mounting platform 1. The mounting platform 1 includes a horizontally arranged mounting plate 101 and a support frame for supporting the mounting plate 101. Multiple cabinet doors (not shown in the figure) are provided on the support frame, making the sheet metal stamping machine a closed machine tool. The mounting platform 1 is equipped with several stamping mechanisms distributed in a straight line and a shearing die 5, such as... Figure 2 As shown, the steel plate is fed from left to right. Several stamping mechanisms and shearing dies 5 on the mounting platform 1 are arranged in sequence along the plate conveying direction. The number of stamping mechanisms is determined according to the length of the holes to be punched on the steel plate. In this embodiment, there are 3 stamping mechanisms, which are distributed along the plate conveying direction. The shearing die 5 is located at the edge of the mounting platform 1 and is used to shear the steel plate.

[0026] Each stamping mechanism includes at least one stamping unit and a drive unit for moving the stamping unit perpendicular to the sheet metal conveying direction. The drive unit drives the stamping unit to move perpendicular to the sheet metal conveying direction to accommodate steel sheets of different widths; or, by adjusting the stamping unit, punches with holes at different distances from the edges onto the steel sheet. The drive unit can drive each stamping unit individually, allowing for more flexible combination of stamping units to accommodate steel sheets with different stamping requirements.

[0027] The stamping unit includes a mold frame 3 slidably connected to the mounting platform 1 and a stamping die installed within the mold frame 3. In this embodiment, the mold frame 3 is mounted on the mounting plate 101, and a hydraulic cylinder 302 for pushing the stamping die to close is provided on the mold frame 3. Specifically, the mold frame 3 includes two parallel side plates, which are perpendicular to the mounting plate 101. A top plate and a bottom plate are respectively provided at the top and bottom of the side plates. The top plate, bottom plate, and two side plates enclose a receiving space for accommodating the stamping die. The receiving space is open at both ends, and the top plate and bottom plate are parallel to each other and perpendicular to the side plates. The top plate can be connected to the two side plates by welding, bolting, or snap-fit. In this embodiment, the top plate and side plates are connected by snap-fit ​​and bolting. Specifically, the top of each side plate has a first groove with an opening facing the receiving space on its top side. The two ends of the top plate extend into the two first grooves and are connected by bolts. Similarly, the bottom plate can be connected to the two side plates by welding, bolting, or snap-fit. In this embodiment, the bottom plate and side plates are connected by snap-fit. The bottom of each side plate has a second groove with an opening facing the receiving space on its bottom side. The two ends of the bottom plate extend into the two second grooves and are connected by bolts. This connection method for the side plates, top plate, and bottom plate achieves a fixed connection, which improves the load-bearing capacity of the entire mold frame 3 and further enhances its stability.

[0028] In this embodiment, the outer shell of the hydraulic cylinder 302 is fixed above the top plate, and the free end of the piston rod of the hydraulic cylinder 302 passes through the top plate and is located below the top plate. The hydraulic cylinder 302 is connected to the top plate by bolts.

[0029] A material passage 305 with one open end is provided on the side wall of the mold frame 3. The opening direction of the material passage 305 is the same as the opening direction of one of the accommodating spaces. During the stamping process of the steel plate, the steel plate near the edge passes through the material passage 305 and moves along the plate conveying direction. In this embodiment, the material passage 305 is provided on two side plates, and the material passage 305 is in the same position and has the same opening direction on the two side plates, so that the material passage 305 on the two side plates are connected. A guide plate 10 is fixedly provided on the side wall of the material passage 305. The two sides of the guide plate 10 are bent downward to form a bending part. The two bending parts are located on both sides of the side plate, which facilitates the steel plate to pass through the material passage 305.

[0030] The base plate has multiple mounting holes 306 for mounting stamping dies. In this embodiment, there are three mounting holes 306 evenly distributed along the sheet metal conveying direction. The middle mounting hole 306 has an internal thread. The stamping die is pushed into the receiving space, and the lower template of the stamping die is connected to the middle mounting hole 306 with bolts. Positioning pins are inserted into the two mounting holes 306 on the edge. The outer side wall of the positioning pin fits against the side wall of the lower template of the stamping die, thereby positioning and fixing the stamping die. The base plate has a first discharge hole 303 corresponding to the blanking hole on the stamping die, and the mounting plate 101 has a second discharge hole that communicates with the first discharge hole 303. The size of the second discharge hole is larger than that of the first discharge hole 303, so that when adjusting the position of the stamping unit, the second discharge hole is always connected to the first discharge hole 303, ensuring that the punched scrap falls smoothly through the first discharge hole 303 and the second discharge hole 303.

[0031] The top plate is equipped with a sensing plate 6 that can move synchronously along the piston rod of the hydraulic cylinder 302, and two sensors 7 that can sense the position of the sensing plate 6 and are distributed along the direction of piston rod movement, thereby limiting the stroke of the hydraulic cylinder 302. Figure 4 and Figure 5 As shown, the sensing plate 6 is located above the top plate, that is, a sliding rod 601 is slidably mounted on the top plate. The sliding rod 601 is a cylindrical structure, and a hole with the same diameter as the sliding rod 601 is opened on the top plate. The sliding rod 601 passes through the hole and its two ends are located on both sides of the top plate. Specifically, the top end of the sliding rod 601 is located above the top plate and is fixedly connected to the sensing plate 6. The sensing plate 6 is a circular plate structure coaxial with the sliding rod 601, and the two are connected by a bolt located at the center of the sensing plate 6. The bottom end of the slide rod 601 is located below the top plate and connected to the piston rod. In this embodiment, a movable plate 603 is fixedly connected to the bottom end of the slide rod 601. The movable plate 603 is a circular plate-shaped mechanism coaxial with the slide rod 601. The diameter of the movable plate 603 is the same as the diameter of the sensing plate 6, and the movable plate 603 and the slide rod 601 are connected by bolts located on their axes. A push plate 11 is fixedly sleeved on the piston rod. The movable plate 603 is located below the push plate 11 and on the movement trajectory of the push plate 11, that is, the edge of the push plate 11 extends between the upper surface of the movable plate 603 and the lower surface of the top plate. When the hydraulic cylinder 302 pushes the stamping die to close, the piston rod moves downward, causing the push plate 11 to push the moving plate 603 downward. The portion of the slide rod 601 located between the sensing plate 6 and the top plate is fitted with a spring 602 that pushes the sensing plate 6 upward. One end of the spring 602 abuts against the sensing plate 6, and the other end of the spring 602 abuts against the upper surface of the top plate. During the downward movement of the moving plate 603, the spring 602 is compressed. During the upward movement of the piston rod, under the action of the spring 602's restoring elasticity, the sensing plate 6, the slide rod 601, and the moving plate 603 move upward synchronously.

[0032] The sensor 7 is positioned above the top plate and on one side of the sensing plate 6. The sensor 7 is connected to the top plate via a fixing piece 701. Specifically, the fixing piece 701 includes a vertical part perpendicular to the top plate and a horizontal part parallel to the top plate. The vertical part and the horizontal part are integrally connected, and the horizontal part is connected to the top plate by bolts. An elongated hole 702 is provided on the vertical part. The length direction of the elongated hole 702 is parallel to the movement direction of the piston rod. The sensor 7 is slidably disposed in the elongated hole 702 and can be fixed. When the piston rod moves downward to close the stamping die, the push plate 11 pushes the moving plate 603 downward, which in turn moves the sensing plate 6 downward until the sensing plate 6 senses the sensor 7 located below it. The sensor 7 senses the sensing plate 6 and transmits the signal to the control unit. The control unit then controls the piston rod to stop pushing the stamping die and move upward. Under the restoring force of the spring 602, the sensing plate 6 moves upward until it reaches the position of the sensor 7 above it. The sensor 7 senses the sensing plate 6 and transmits the signal to the control unit. The control unit then controls the piston rod to change its direction of movement. In other words, the sensor 7 is used to control the stroke of the piston rod. The elongated hole 702 allows adjustment of the positions of the two sensors 7, thereby adjusting the stroke of the hydraulic cylinder 302 to adapt to different stamping dies, thus improving the applicability of this invention.

[0033] A power connection block 304 is fixedly connected to the mold frame 3. The power connection block 304 is located on the side wall of the mold frame 3. The drive mechanism includes lead screws that correspond one-to-one with the stamping units. The two ends of the lead screws are rotatably connected to the mounting platform 1 through a rotary support assembly. The lead screws pass through the power connection block 304 and can drive the power connection block 304 to reciprocate, thereby adjusting the position of the stamping units to accommodate steel plates of different widths, thus improving the applicability of this utility model.

[0034] In this embodiment, each stamping mechanism includes two stamping units arranged opposite each other, such as... Figure 3As shown, the drive mechanism includes a first lead screw 8 and a second lead screw 9 corresponding to the two stamping units. Both the first lead screw 8 and the second lead screw 9 are rotatably connected to the mounting plate 101, and the length direction of the first lead screw 8 and the second lead screw 9 is perpendicular to the sheet metal conveying direction. In this embodiment, the two ends of the first lead screw 8 are connected to the mounting plate 101 through a first rotary support assembly 801; the two ends of the second lead screw 9 are connected to the mounting plate 101 through a second rotary support assembly 901. A guide rod 902 is coaxially fixedly connected to the end of the second lead screw 9, and the guide rod 902 extends to the side of the first lead screw 8. In this embodiment, the guide rod 902 extends to be flush with the end of the first lead screw 8 that is away from the second lead screw 9. Specifically, in order to save machine tool space and reduce the size of the mounting platform 1, the first lead screw 8 is located above the second lead screw 9; the two ends of the guide rod 902 are connected to the mounting plate 101 through a third rotary support assembly 903 located below the first rotary support assembly 801. A power connection block 304 is fixedly connected to the mold frame 3. The power connection block 304 is fixed on the side wall of the mold frame 3, and the connection between the power connection block 304 and the mold frame 3 is a bolt connection. The first lead screw 8 and the second lead screw 9 pass through the corresponding power connection block 304 and can drive the power connection block 304 to reciprocate. This setting allows the position of the two stamping units to be adjusted separately on the same side, which is convenient for the adjustment of the stamping units.

[0035] In this embodiment, the first slewing support assembly 801, the second slewing support assembly 901, and the third slewing support assembly 903 all include a bearing housing and a bearing disposed in the inner hole of the bearing housing. The three slewing support assemblies are existing technologies and will not be described in detail here.

[0036] The stamping mechanism also includes two slide rails 102 that are fixedly connected to the mounting platform 1 and are parallel to each other. The slide rails 102 are connected to the mounting plate 101 by bolts. The extension direction of the slide rails 102 is perpendicular to the sheet material conveying direction. A slider 301 that is fixedly connected to the mold frame 3 is slidably connected to the slide rails 102. The slider 301 is connected to the bottom plate of the mold frame 3, and the connection between the two is by bolts.

[0037] In this embodiment, the openings of two feed grooves 305 in a stamping mechanism are arranged opposite to each other and connected, allowing the steel plate to pass through the feed grooves 305.

[0038] The guide machine 4 is set according to the spacing of the stamping mechanism to ensure stable feeding of the steel plate. In this embodiment, for example... Figure 2 As shown, a feeder 4 is provided between the first stamping mechanism and the second stamping mechanism.

[0039] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0040] Example 2

[0041] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 1 and Figure 2 As shown, the stamping machine also includes a steel plate guide mechanism 2 located in front of the stamping mechanism. The steel plate guide mechanism 2 includes two parallel fixed plates 201 for fixed connection with the mounting platform 1. Guide wheels, a first guide wheel pair and a second guide wheel pair are arranged between the two fixed plates 201 along the feeding direction. The positioning component is located between the first guide wheel pair and the second guide wheel pair. The positioning component includes a third lead screw 202 and a positioning block 203. The third lead screw 202 is rotatably connected to the fixed plate 201 and extends toward the other fixed plate 201. The third lead screw 202 passes through the positioning block 203 and can drive the positioning block 203 to move horizontally back and forth. Guide rods 204 are arranged on both sides of the third lead screw 202 that can pass through the positioning block 203 and are fixedly connected to the fixed plate 201. In this embodiment, the fixed plate 201 has a threaded hole that mates with the third lead screw 202. One end of the third lead screw 202 extends out of the fixed plate 201, and the other end of the third lead screw 202 faces another fixed plate 201. A rotating disk is fixedly connected to the end of the third lead screw 202 that extends out of the fixed plate 201. Rotating the rotating disk causes the third lead screw 202 to rotate, which in turn causes the positioning block 203 to move horizontally, thereby positioning the steel plate more accurately.

[0042] A guide block 205 is sleeved at the center of the guide rod 204. The horizontal position of the guide block 205 is higher than the horizontal position of the third lead screw 202. During the steel plate transmission process, the lower surface of the steel plate is prevented from contacting the thread of the third lead screw 202, which would scratch the surface of the steel plate or damage the thread of the third lead screw 202.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sheet metal stamping machine for producing steel furniture, characterized in that: The system includes an installation platform (1), on which are provided a plurality of stamping mechanisms distributed along the sheet material conveying direction and a shearing die (5). Each stamping mechanism includes at least one stamping unit and a drive unit for driving the stamping unit to move perpendicular to the sheet material conveying direction. The stamping unit includes a die frame (3) slidably connected to the installation platform (1) and a stamping die installed in the die frame (3). The die frame (3) is provided with a hydraulic cylinder (302) for pushing the stamping die to close.

2. The sheet metal stamping machine tool for producing steel furniture as described in claim 1, characterized in that: The stamping mechanism also includes two slide rails (102) that are fixedly connected to the mounting platform (1) and parallel to each other. The extension direction of the slide rails (102) is perpendicular to the sheet material conveying direction. A slider (301) that is fixedly connected to the mold frame (3) is slidably connected on the slide rails (102).

3. The sheet metal stamping machine tool for producing steel furniture as described in claim 1, characterized in that: A power connection block (304) is fixedly connected to the mold frame (3). The drive mechanism includes a lead screw corresponding to each stamping unit. The two ends of the lead screw are rotatably connected to the mounting platform (1) through a rotary support assembly. The lead screw passes through the power connection block (304) and can drive the power connection block (304) to reciprocate.

4. A sheet metal stamping machine for producing steel furniture as described in claim 1, characterized in that: Each of the stamping mechanisms includes two stamping units. The driving mechanism includes a first lead screw (8) and a second lead screw (9) corresponding to the stamping unit. A power connecting block (304) is fixedly connected to the mold frame (3). The first lead screw (8) and the second lead screw (9) pass through the corresponding power connecting block (304) and can drive the power connecting block (304) to reciprocate.

5. A sheet metal stamping machine for producing steel furniture as described in claim 4, characterized in that: The end of the second lead screw (9) is coaxially fixedly connected to a guide rod (902), and the guide rod (902) extends to the side of the first lead screw (8).

6. A sheet metal stamping machine for producing steel furniture as described in claim 4, characterized in that: The mold frame (3) has a feed groove (305) on its side wall, and the openings of the two feed grooves (305) in a stamping mechanism are arranged opposite to each other and connected.

7. A sheet metal stamping machine for producing steel furniture as described in claim 1, characterized in that: The mold frame (3) includes two oppositely arranged side plates. The top and bottom of the side plates are respectively provided with a top plate and a bottom plate. The top plate, the bottom plate and the two side plates enclose a receiving space for accommodating the stamping mold. The top plate is provided with a sensing plate (6) that can move synchronously along the piston rod of the hydraulic cylinder (302), and two sensors (7) that can sense the position of the sensing plate (6) and are distributed along the direction of piston rod movement.

8. A sheet metal stamping machine for producing steel furniture as described in claim 7, characterized in that: A slide rod (601) is slidably disposed on the top plate. The top end of the slide rod (601) is located above the top plate and is fixedly connected to the sensing plate (6). The bottom end of the slide rod (601) is located below the top plate and is connected to the piston rod.

9. A sheet metal stamping machine for producing steel furniture as described in claim 8, characterized in that: A movable plate (603) is fixedly connected to the bottom end of the slide rod (601), and a push plate (11) is fixedly sleeved on the piston rod. The movable plate (603) is located below the push plate (11) and on the movement trajectory of the push plate (11). A spring (602) that pushes the sensing plate upward is sleeved on the part of the slide rod (601) located between the sensing plate (6) and the top plate.

10. A sheet metal stamping machine for producing steel furniture as described in claim 1, characterized in that: The stamping machine tool also includes a steel plate guiding mechanism located in front of the stamping mechanism. The steel plate guiding mechanism includes a positioning component and two parallel fixed plates (201) for fixed connection with the mounting platform (1). The positioning component includes a third lead screw (202) and a positioning block (203). The third lead screw (202) is rotatably connected to one of the fixed plates (201) and extends toward the other fixed plate (201). The third lead screw (202) passes through the positioning block (203) and can drive the positioning block (203) to reciprocate horizontally. Guide rods (204) are provided on both sides of the third lead screw (202) that can pass through the positioning block (203) and are fixedly connected to the fixed plate (201). A guide block (205) is sleeved at the center of the guide rod (204). The horizontal position of the guide block (205) is higher than the horizontal position of the third lead screw (202).

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