Grooving device for mold machining

Abstract

The utility model relates to the technical field of mold grooving devices, and discloses a grooving device for mold machining, which comprises a workbench, a plurality of second round holes are formed in the top of the workbench, a protective shell is fixedly connected to the middle of the rear side of the workbench, and a second servo motor is fixedly connected to the left side of the inner wall of the protective shell. The output end of the second servo motor is fixedly connected with a second gear, the front side of the second gear is in meshed connection with a second rack, the rear side of the top of the workbench is fixedly connected with a fixing block, the top of the second rack penetrates through the rear end of the middle of the fixing block and is fixedly connected with a pushing plate, and the top of the pushing plate is fixedly connected with a first shell. First fixing rods are fixedly connected to the left side and the right side of the top of the fixing block. According to the automatic grooving machine, the height of the grooving position is ensured through accurate transmission of the second servo motor on the rear side of the workbench and the second rack through the second gear, and the grooving efficiency is greatly improved through quick response and stable output of the second servo motor and high-speed rotary cutting of the rotating machine.

Description

Technical Field

[0001] The utility model relates to the technical field of die slotting devices, in particular to a slotting device for die processing. Background Technique

[0002] The die processing slotting process has an important impact on the quality, performance and service life of the die. Slotting is not only inefficient, but also difficult to guarantee the accuracy, resulting in problems such as uneven slot openings and dimensional deviations. When making precision injection molds, manual slotting is difficult to meet the required accuracy requirements, and it also causes flash and dimensional non-compliance in injection products. Using traditional simple mechanical tools for slotting, although the efficiency is improved to a certain extent, there are still problems such as low automation, inconvenient adjustment, and a large amount of time consumption.

[0003] The slotting device adopts a transmission mode combining a servo motor and a gear rack, which greatly improves the transmission accuracy and stability, and can achieve a more accurate slotting position. Through the coordinated work of multiple lifting rods and combined with the structure of the base and the partition, the lifting table can be lifted and lowered smoothly to adapt to molds of different heights. At the same time, the automatic control system realizes the real-time monitoring and precise control of various parameters during the slotting process, greatly reducing the dependence on manual experience and improving the production efficiency and product quality.

[0004] However, the existing die processing device consists of a bed body, a column, a workbench, a milling head and a motor. The motor drives the milling cutter to rotate, and the workbench drives the die to move to achieve slotting. Due to the relatively simple structure of this device and the limited accuracy of the control system and the transmission system, there will be certain errors during the processing, resulting in the processing efficiency and quality being difficult to meet the requirements of the die. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a slotting device for die processing, aiming to improve the problem that the limited accuracy of the control system and the transmission system may cause certain errors during the processing, resulting in the processing efficiency and quality being difficult to meet the requirements of the die.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A grooving device for mold processing, including a workbench. A plurality of round holes two are opened at the top of the workbench. The middle part at the rear side of the workbench is fixedly connected with a protective shell. The left side of the inner wall of the protective shell is fixedly connected with a servo motor two. The output end of the servo motor two is fixedly connected with a gear two. The front side of the gear two is meshed and connected with a rack two. The top of the rear side of the workbench is fixedly connected with a fixed block. The top of the rack two penetrates through the middle rear end of the fixed block and is fixedly connected with a pushing plate. The top of the pushing plate is fixedly connected with a housing one. The left and right sides of the top of the fixed block are fixedly connected with fixing rods one. A plurality of grooves are opened on both the left and right sides of the fixing rods one. The top ends of the two fixing rods one respectively penetrate through the left and right sides of the top of the housing one. The left and right sides of the inner wall of the housing one are rotationally connected with rotating rods. The rear ends of the two rotating rods penetrate through the housing one and are fixedly connected with buttons. The front sides of the adjacent sides of the two rotating rods are fixedly connected with snap fasteners one. The middle part of the front side of the housing one is fixedly connected with a fixing plate. A clamping groove one is arranged at the bottom of the fixing plate. A rotating machine is arranged at the bottom of the clamping groove one. Two nuts are threadedly connected to the lower left part of the left clamping groove one. The ends of the two nuts are respectively threadedly connected to the front and rear sides of the right clamping groove one. A self-tightening drill chuck is installed at the bottom of the rotating machine. An elevating mechanism is arranged in the middle of the inner wall of the workbench. The elevating mechanism is used for elevating the product.

[0007] As a further description of the above technical scheme:

[0008] The elevating mechanism includes a servo motor one and an elevating table. The bottom of the servo motor one is fixedly connected to the inner bottom of the workbench. The middle upper part of the elevating table is arranged in the middle upper part of the inner side of the workbench. The output end of the servo motor one is fixedly connected with a gear one. The bottom of the gear one is meshed and connected with a rack one. The inner bottom of the workbench is fixedly connected with a base. A fixing column one is arranged at the rear end of the inner side of the base. A plurality of baffle plates one are fixedly connected at equal intervals on the rear side of the fixing column one. The rear side of the middle baffle plate one is fixedly connected to the front end of the rack one. The top of the fixing column one is fixedly connected with a plurality of elevating frames. The front ends of the plurality of elevating frames are respectively fixedly connected to the inner wall side of the base. The tops of the plurality of elevating frames are respectively fixedly connected to the left and right sides of the bottom of the elevating table. Round holes one are opened on both the left and right sides inside the base. The two ends of the fixing column one are respectively slidably connected to the corresponding round holes one.

[0009] As a further description of the above technical scheme:

[0010] The middle part of the left side of the workbench is fixedly connected with a fixing frame. The top of the fixing frame is fixedly connected with a hair dryer. The air outlet of the hair dryer penetrates through the middle upper part of the left side of the workbench.

[0011] As a further description of the above technical solution:

[0012] A sliding plate is slidably connected to the front side of the top of the workbench, and a first handle is fixedly connected to the upper middle part of the front side of the sliding plate.

[0013] As a further description of the above technical solution:

[0014] A second housing is fixedly connected to the upper middle part of the right side of the workbench. Second baffles are fixedly connected to both the front and rear sides of the second housing, and a waste outlet is formed at the bottom of the second housing.

[0015] As a further description of the above technical solution:

[0016] A second buckle is fixedly connected to the lower middle part of the right side of the workbench. A waste bin is slidably connected to the middle of the second buckle, and second handles are formed at the top of both the front and rear sides of the waste bin.

[0017] As a further description of the above technical solution:

[0018] A controller is fixedly connected to the lower left end of the middle part of the front side of the workbench. A display is fixedly connected to the upper middle part of the front end of the controller, and control buttons are fixedly connected to the lower middle part of the front end of the controller.

[0019] As a further description of the above technical solution:

[0020] A plurality of second fixing columns are fixedly connected to the top of the inner wall of the workbench, and foot pads are fixedly connected to the bottom ends of the second fixing columns.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the precise transmission of the second servo motor at the rear side of the workbench with the second gear and the second rack, stable up and down displacement can be provided for the first housing, ensuring the height of the grooving position. Through the rapid response and stable output of the second servo motor, as well as the high-speed rotary cutting of the rotary machine, the grooving efficiency is greatly improved. When mass-producing molds, grooving can be quickly completed, shortening the production cycle and improving the production efficiency.

[0023] 2. In the utility model, through the sliding connection of the first gear driven by the first servo motor with the first rack, precise linear motion control can be achieved. The strength of the structure is increased by multiple partitions inside the base, and together with the first fixing columns in the first round holes, the bearing capacity of the base is greatly improved. When large and heavy molds are placed on the lifting table, the entire lifting mechanism can still operate stably, ensuring the safety and stability of the processing process. Description of the Drawings

[0024] Figure 1A three-dimensional view of a grooving device for mold processing proposed by the present utility model;

[0025] Figure 2 A front view of a grooving device for mold processing proposed by the present utility model;

[0026] Figure 3 A left view of a grooving device for mold processing proposed by the present utility model;

[0027] Figure 4 A top view of a grooving device for mold processing proposed by the present utility model;

[0028] Figure 5 A sectional view of a grooving device for mold processing proposed by the present utility model;

[0029] Figure 6 A structural schematic diagram of a grooving device for mold processing proposed by the present utility model;

[0030] Figure 7 A rear view of a grooving device for mold processing proposed by the present utility model;

[0031] Figure 8 A structural schematic diagram of a grooving device for mold processing proposed by the present utility model.

[0032] Legend Explanation:

[0033] 1. Workbench; 2. Lifting mechanism; 201. Servo motor 1; 202. Gear 1; 203. Rack 1; 204. Base; 205. Round hole 1; 206. Fixed column 1; 207. Baffle 1; 208. Lifting frame; 209. Lifting table; 3. Round hole 2; 4. Protective shell; 5. Servo motor 2; 6. Gear 2; 7. Rack 2; 8. Fixed block; 9. Push plate; 10. Fixed rod 1; 11. Groove; 12. Outer shell 1; 13. Rotating rod; 14. Button; 15. Snap 1; 16. Fixed plate; 17. Card slot 1; 18. Rotary machine; 19. Fixed frame; 20. Hair dryer; 21. Slide plate; 22. Handle 1; 23. Outer shell 2; 24. Baffle 2; 25. Waste outlet; 26. Snap 2; 27. Waste bin; 28. Handle 2; 29. Controller; 30. Display; 31. Control button; 32. Fixed column 2; 33. Foot pad; 34. Nut; 35. Self-tightening drill chuck. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Referring to Figure 1 , Figure 6 and Figure 7 , an embodiment provided by the present utility model: A grooving device for mold processing, including a workbench 1. A plurality of round holes two 3 are opened at the top of the workbench 1. A protective shell 4 is fixedly connected to the middle of the rear side of the workbench 1. A servo motor two 5 is fixedly connected to the left side of the inner wall of the protective shell 4. The output end of the servo motor two 5 is fixedly connected to a gear two 6. The front side of the gear two 6 is meshed and connected to a rack two 7. A fixed block 8 is fixedly connected to the top of the rear side of the workbench 1. The top of the rack two 7 penetrates through the middle rear end of the fixed block 8 and is fixedly connected to a pushing plate 9. The top of the pushing plate 9 is fixedly connected to a housing one 12. Fixed rods one 10 are fixedly connected to the left and right sides of the top of the fixed block 8. A plurality of grooves 11 are opened on both the left and right sides of the fixed rods one 10. The top ends of the two fixed rods one 10 respectively penetrate through the left and right sides of the top of the housing one 12. Rotating rods 13 are rotatably connected to the left and right sides of the inner wall of the housing one 12. The rear ends of the two rotating rods 13 penetrate through the housing one 12 and are fixedly connected to buttons 14. A clamping buckle one 15 is fixedly connected to the front end of the adjacent side of the two rotating rods 13. A fixing plate 16 is fixedly connected to the middle of the front side of the housing one 12. A clamping groove one 17 is arranged at the bottom of the fixing plate 16. A rotating machine 18 is arranged at the bottom of the clamping groove one 17. Two nuts 34 are threadedly connected to the lower left part of the left clamping groove one 17. The ends of the two nuts 34 are respectively threadedly connected to the front and rear sides of the right clamping groove one 17. A self-tightening drill chuck 35 is installed at the bottom of the rotating machine 18. A lifting mechanism 2 is arranged in the middle of the inner wall of the workbench 1. The lifting mechanism 2 is used to lift the product;

[0036] Specifically, the servo motor 25 drives the push plate 9 to move up and down through the engagement of the gear 26 and the rack 27. When the servo motor 25 is started, the gear 26 will rotate, thereby pushing the rack 27. The rack 27 drives the push plate 9 to move along the top and rear side of the workbench 1 through the fixed block 8. The movement of the push plate 9 will drive the shell 12 and the rotating rod 13 fixed on the top thereof. The rotating rod 13 slides in the groove 11 of the fixed rod 10 to ensure the stability of the movement and maintains the relative position with the fixed block 8 through the button 14. The buckle at the front end of the rotating rod 13 15 is used to cooperate with the card slot 17 on the fixed plate 16. When the push plate 9 moves, the card buckle 15 will be engaged and disengaged from the card slot 17, thereby adjusting the angle of the shell 12 to adapt to the mold processing at different positions. The rotary machine 18 under the fixed plate 16 can rotate at high speed. The self-tightening drill chuck 35 inside it is used to fix and rotate the tool to realize the slotting operation of the mold. The nut 34 of the left card slot 17 is used to adjust and fix the position of the rotary machine 18 to ensure stable operation at different heights and angles, and to accurately slot the mold.

[0037] Reference Figure 8 The lifting mechanism 2 includes a servo motor 201 and a lifting platform 209. The bottom of the servo motor 201 is fixedly connected to the inner bottom of the workbench 1. The upper middle part of the lifting platform is arranged at the upper middle part of the inner side of the workbench 1. The upper middle part of the lifting platform 209 is slidably connected with the workbench 1. The output end of the servo motor 201 is fixedly connected to a gear 202. The bottom of the gear 202 is meshedly connected to a rack 203. The inner bottom of the workbench 1 is fixedly connected to a base 204. The inner rear end of the base 204 is provided with a fixed column 206. The rear side of column 1 206 is fixedly connected to multiple baffles 1 207 at equal intervals. The rear side of the middle baffle 1 207 is fixedly connected to the front end of rack 1 203. The top of fixed column 1 206 is fixedly connected to multiple lifting frames 208. The front ends of the multiple lifting frames 208 are respectively fixedly connected to the inner wall side of the base 204. The tops of the multiple lifting frames 208 are respectively fixedly connected to the left and right sides of the bottom of the lifting platform 209. The left and right sides of the interior of the base 204 are opened with circular holes 1 205. The two ends of fixed column 1 206 are respectively slidably connected to the corresponding circular holes 1 205.

[0038] Specifically, the first servo motor 201 is installed in the lower middle part of the inner wall of the workbench 1. When the motor starts, the first gear 202 at its output end will rotate accordingly. The first gear 202 meshes with the first rack 203 at the bottom. When the first gear 202 rotates, it will drive the first rack 203 to move in the vertical direction. The front end of the first rack 203 is connected to a baffle 207 on a fixed column 206 fixed to the inner rear end of the base 204. Therefore, the movement of the first rack 203 will cause the fixed column 206 to slide up and down. Multiple lifting frames 208 at the top of the fixed column 206 are fixedly connected to the inner side of the inner wall of the base 204 and the left and right sides of the bottom of the lifting table 209. When the fixed column 206 moves, the lifting table 209 will rise and fall accordingly. The first round holes 205 are arranged on the left and right sides inside the base 204, and both ends of the fixed column 206 slide in the first round holes 205 to ensure the smoothness of its movement. The first servo motor 201 can precisely control the lifting action of the lifting table 209, realizing the smooth lifting and position adjustment of the equipment.

[0039] Refer to Figure 3 , Figure 4 and Figure 5 , a fixed frame 19 is fixedly connected to the middle part on the left side of the workbench 1. A hair dryer 20 is fixedly connected to the top of the fixed frame 19. The air outlet of the hair dryer 20 penetrates through the upper middle part on the left side of the workbench 1. A sliding plate 21 is slidably connected to the front side of the top of the workbench 1. A first handle 22 is fixedly connected to the upper middle part on the front side of the sliding plate 21. A second housing 23 is fixedly connected to the upper middle part on the right side of the workbench 1. Second baffles 24 are fixedly connected to both the front and rear sides of the second housing 23. A waste outlet 25 is opened at the bottom of the second housing 23;

[0040] Specifically, the hair dryer 20 on the fixed frame 19 generates an air flow through its air outlet towards the upper middle part on the left side of the workbench 1. The sliding plate 21 can slide on the front side of the top of the workbench 1, and the first handle 22 fixed thereto facilitates adjusting the position of the sliding plate 21. When processing materials, the materials are placed on the sliding plate 21, and the air flow from the hair dryer 20 can help remove debris on the workbench 1. The second housing 23 provides lateral protection, the second baffles 24 are used to prevent waste from splashing, and the waste outlet 25 is directly opened at the upper middle part on the right side of the workbench 1 to facilitate the collection and discharge of waste generated during the processing.

[0041] Refer to Figure 2 , Figure 4 and Figure 5A second buckle 26 is fixedly connected to the middle and lower part of the right side of the workbench 1, and a waste box 27 is slidably connected to the middle part of the second buckle 26. A second handle 28 is provided on the top of the front and rear sides of the waste box 27. A controller 29 is fixedly connected to the left end of the middle and lower part of the front side of the workbench 1, a display 30 is fixedly connected to the middle and upper part of the front end of the controller 29, and a control button 31 is fixedly connected to the middle and lower part of the front end of the controller 29. A plurality of second fixing columns 32 are fixedly connected to the top of the inner wall of the workbench 1, and a foot pad 33 is fixedly connected to the bottom end of the second fixing column 32;

[0042] Specifically, through the coordinated action of various components, the second clip 26 is fixed to the lower middle part of the right side of the workbench 1, and can be engaged with the structure in the middle of the waste box 27 to slide and connect the waste box 27 for easy removal or placement. The waste box 27 is designed with a second handle 28, which is lifted when waste needs to be cleaned. A controller 29 is installed at the left end of the lower middle part of the front side of the workbench 1 to operate and adjust the equipment. The display 30 on the controller 29 is used to display the equipment status and related data, and the control button 31 is used for the user to input instructions to more accurately control the operation of the equipment. A plurality of second fixing columns 32 are fixed to the top of the inner wall of the workbench 1. The bottom ends of these second fixing columns 32 are provided with foot pads 33. The foot pads 33 can provide fixation to prevent the material from sliding during implementation, while making the operation of the workbench 1 convenient, safe and stable.

[0043] Working principle: The servo motor 25 rotates precisely to drive the gear 26 connected to it to rotate, and the gear 26 meshes with the rack 27, so that the rack 27 makes a linear motion, thereby pushing the push plate 9 and the components above to move up and down. The fixed block 8 plays a supporting and positioning role to ensure the stability and accuracy of the movement of the rack 27. The groove 11 on the fixed rod 10 cooperates with the shell 12 to provide a guide for the movement of the shell 12, ensuring the linearity and accuracy of the movement. The rotating rod 13 can drive the button 14 to fix the shell 12 by manual rotation. The buckle 15 cooperates with the slot 17 to achieve the fixing and unlocking of the components, thereby adjusting and fixing the position and angle of the rotary machine 18. The rotary machine 18 provides rotational power. The self-tightening drill chuck 35 can firmly clamp the tool and rotate at high speed driven by the rotary machine 18 to achieve slotting processing of the mold.

[0044] By the rotation of the first servo motor 201, the first gear 202 is driven to rotate. The first gear 202 meshes with the first rack 203, converting the rotational motion into the linear motion of the first rack 203. Fixed between the first rack 203 and the first fixed column 206 by the first baffle 207, the linear motion of the first rack 203 can be effectively transmitted to the first fixed column 206, which ensures the stable and reliable transmission of power. One end of multiple lifting frames 208 is connected to the first fixed column 206 and the other end is connected to the lifting platform 209. When the first fixed column 206 moves up and down due to the push of the first rack 203, the lifting frames 208 will extend and contract accordingly, thereby driving the lifting platform 209 to achieve the lifting action. The lifting is achieved through the coordinated movement of multiple intersecting rods. The base 204 provides the function of installation and support for the entire lifting mechanism 2, and the first round hole 205 provides guidance for the up and down sliding of the first fixed column 206, ensuring that the first fixed column 206 moves along the vertical direction, thereby ensuring the accuracy of the lifting action.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grooving device for mold processing, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a plurality of circular holes (2) (3), the middle part of the rear side of the workbench (1) is fixedly connected with a protective shell (4), the left side of the inner wall of the protective shell (4) is fixedly connected with a servo motor (5), the output end of the servo motor (5) is fixedly connected with a gear (6), the front side of the gear (6) is meshed with a rack (7), the top rear side of the workbench (1) is fixedly connected with a fixed block (8), the top of the rack (7) passes through the middle rear end of the fixed block (8) and is fixedly connected with a push plate (9), the top of the push plate (9) is fixedly connected with a shell (12), the left and right sides of the top of the fixed block (8) are fixedly connected with a fixed rod (10), the left and right sides of the fixed rod (10) are provided with a plurality of grooves (11), the top ends of the two fixed rods (10) respectively pass through the left and right sides of the top of the shell (12), The inner wall of the shell (12) is rotatably connected to rotating rods (13) on the left and right sides. The rear ends of the two rotating rods (13) pass through the shell (12) and are fixedly connected to buttons (14). The front ends of the adjacent sides of the two rotating rods (13) are fixedly connected to buckles (15). The middle part of the front side of the shell (12) is fixedly connected to a fixing plate (16). The bottom of the fixing plate (16) is provided with a card slot (17). The bottom of the card slot (17) is provided with a rotating machine (18). The lower left part of the left card slot (17) is threadedly connected to two nuts (34). The ends of the two nuts (34) are respectively threadedly connected to the front and rear sides of the right card slot (17). A self-tightening drill chuck (35) is installed at the bottom of the rotating machine (18). A lifting mechanism (2) is provided in the middle part of the inner wall of the workbench (1). The lifting mechanism (2) is used to lift the product.

2. A grooving device for mold processing according to claim 1, characterized in that: The lifting mechanism (2) comprises a servo motor (201) and a lifting platform (209), wherein the bottom of the servo motor (201) is fixedly connected to the inner bottom of the workbench (1), and the upper middle portion of the lifting platform (209) is arranged at the upper middle portion of the inner side of the workbench (1). The output end of the servo motor (201) is fixedly connected to a gear (202), and the bottom of the gear (202) is meshedly connected to a rack (203). The inner bottom of the workbench (1) is fixedly connected to a base (204), and the inner rear end of the base (204) is provided with a fixed column (206), and the fixed column (206) is fixedly connected to the inner bottom of the workbench (1). A plurality of baffles (207) are fixedly connected at equal intervals on the rear side, the rear side of the middle baffle (207) is fixedly connected to the front end of the rack (203), the top of the fixed column (206) is fixedly connected to a plurality of lifting frames (208), the front ends of the plurality of lifting frames (208) are respectively fixedly connected to the inner wall side of the base (204), the tops of the plurality of lifting frames (208) are respectively fixedly connected to the left and right sides of the bottom of the lifting platform (209), the left and right sides of the interior of the base (204) are provided with circular holes (205), and the two ends of the fixed column (206) are respectively slidably connected to the corresponding circular holes (205).

3. A grooving device for mold processing according to claim 1, characterized in that: A fixing frame (19) is fixedly connected to the middle portion of the left side of the workbench (1), a hair dryer (20) is fixedly connected to the top of the fixing frame (19), and an air outlet of the hair dryer (20) passes through the upper middle portion of the left side of the workbench (1).

4. A grooving device for mold processing according to claim 1, characterized in that: The top front side of the workbench (1) is slidably connected to a sliding plate (21), and the upper middle portion of the front side of the sliding plate (21) is fixedly connected to a handle (22).

5. The grooving device for mold processing according to claim 1, characterized in that: The upper middle portion of the right side of the workbench (1) is fixedly connected to a second shell (23), the front and rear sides of the second shell (23) are fixedly connected to a second baffle (24), and the bottom of the second shell (23) is provided with a waste opening (25).

6. A grooving device for mold processing according to claim 1, characterized in that: A second buckle (26) is fixedly connected to the middle and lower part of the right side of the workbench (1), and a waste box (27) is slidably connected to the middle part of the second buckle (26). The top of the front and rear sides of the waste box (27) are both provided with a second handle (28).

7. The grooving device for mold processing according to claim 1, characterized in that: A controller (29) is fixedly connected to the left end of the lower middle portion of the front side of the workbench (1), a display (30) is fixedly connected to the upper middle portion of the front end of the controller (29), and a control button (31) is fixedly connected to the lower middle portion of the front end of the controller (29).

8. The grooving device for mold processing according to claim 1, characterized in that: The top of the inner wall of the workbench (1) is fixedly connected with a plurality of second fixing columns (32), and the bottom end of the second fixing column (32) is fixedly connected with a foot pad (33).

Images