Stainless steel pipe cutting and polishing device

Abstract

The utility model provides a stainless steel pipe cutting and polishing device, which relates to the technical field of stainless steel pipe production and comprises a bottom plate, and first motor plates are fixedly connected to two ends of the bottom plate. According to the stainless steel pipe cutting device, the handle is held by a hand to pull the n-shaped protective mounting plate to move, the position of the cutting blade is observed through the observation window, the cutting blade is moved to the position needing to be cut, the first electric air cylinder and the motors are started through the control terminal to cut a stainless steel pipe, and the two first positive and negative motors are started through the control terminal to cut the stainless steel pipe. An I-shaped moving block can move in a second T-shaped groove, a second electric air cylinder is started through a control terminal, the two stainless steel pipes are attached to a grinding cone, a double-head motor is started to grind the stainless steel pipes, and an n-shaped protection mounting plate can play a protection role in the cutting and grinding process; and meanwhile, the cut stainless steel pipe does not need to be moved to a grinding area to be ground, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe production, in particular to a stainless steel pipe cutting and grinding device. Background Art

[0002] Stainless steel pipe is one of the materials commonly used in people's daily life. It is often used in products such as stair handrails, furniture, anti-theft doors and windows; stainless steel pipes need to be cut and segmented during production to make them reach the predetermined size for subsequent sales and use; stainless steel pipe cutting is generally carried out using a cutting machine. After the cutting machine cuts the stainless steel pipe, a large amount of burrs often remain at the pipe mouth of the stainless steel pipe, which is not only easy to hurt others, so the cut pipe mouth also needs to be polished.

[0003] However, in the prior art, when a stainless steel pipe cutting and grinding device is used to cut and grind a stainless steel pipe, it is found that sparks are often generated when the stainless steel pipe is cut and grinded, and some stainless steel pipe cutting and grinding devices are not provided with protective measures. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a stainless steel pipe cutting and grinding device, comprising: a base plate, both ends of the base plate are fixedly connected to a motor plate 1, both sides of the top of the base plate are provided with a T-slot 1, the top of the base plate is provided with two T-slots 2, both ends of the two T-slots 2 are provided with a bearing hole 1, the two T-slots 1 are provided with a protective cutting and grinding assembly, and the two T-slots 2 are provided with a clamping and moving assembly.

[0006] As a preferred embodiment, the protective cutting and grinding assembly includes an n-type protective mounting plate, four support plates are fixedly connected to the bottom of both ends of the n-type protective mounting plate, two opposite ones of the eight support plates form a group, the inner sides of the four groups of support plates are fixedly connected to connecting rods, the surfaces of the four connecting rods are provided with pulleys through bearing sleeves, a handle is fixedly connected to one side of the n-type protective mounting plate, an observation window is fixedly embedded on one side of the n-type protective mounting plate, and a control terminal is fixedly connected to one side of the n-type protective mounting plate.

[0007] As a preferred embodiment, an electric cylinder 1 is fixedly connected to one side above the inside of the n-type protective mounting plate, an n-type support plate 1 is fixedly connected to the bottom of the electric cylinder 1, a motor plate 2 is fixedly connected to one side of the n-type support plate 1, a rotating shaft 1 is embedded in the inside of both sides of the n-type support plate 1 through bearings, a cutting piece is fixedly sleeved on the surface of the rotating shaft 1, one end of the rotating shaft 1 is connected to a motor, the output end of the motor is fixedly connected to the center of one end of the rotating shaft 1, and the top of the motor is fixedly connected to the bottom of the motor plate 2.

[0008] As a preferred embodiment, an electric cylinder 2 is fixedly connected to the other side of the upper interior of the n-type protective mounting plate, an n-type support plate 2 is fixedly connected to the bottom of the electric cylinder 2, a motor plate 3 is fixedly connected to the inner side of the n-type support plate 2, a rotating shaft 2 is embedded in the interior of both sides of the n-type support plate 2 through a bearing, a grinding cone is fixedly sleeved on one end of the two rotating shafts 2, a double-headed motor is connected to the other end of the two rotating shafts 2, the output end of the double-headed motor is fixedly connected to the center of one end of the two rotating shafts 2, and the top of the double-headed motor is fixedly connected to the bottom of the motor plate 3.

[0009] As a preferred embodiment, the clamping moving assembly includes a threaded rod, one end of the threaded rod is connected to a forward and reverse motor 1, the output end of the forward and reverse motor 1 is fixedly connected to the center of one end of the threaded rod, the surface thread sleeve of the threaded rod is provided with an I-shaped moving block, one side of the I-shaped moving block is fixedly connected to a motor plate 4, the surface of the I-shaped moving block is provided with a T-slot 3, both ends of the T-slot 3 are provided with bearing holes 2, and two bidirectional threaded rods are embedded in the two bearing holes 2 through bearings, one end of the bidirectional threaded rod is connected to a forward and reverse motor 2, the output end of the forward and reverse motor 2 is fixedly connected to the center of one end of the bidirectional threaded rod, the bottom of the forward and reverse motor 2 is fixedly connected to the surface of the motor plate 4, the surface thread sleeves at both ends of the bidirectional threaded rod are provided with two T-shaped moving blocks, the tops of the two T-shaped moving blocks are fixedly connected to stainless steel pipe clamps, and the surfaces of the two T-shaped moving blocks are movably embedded in the T-slot 3.

[0010] As a preferred embodiment, the bottoms of both ends of the n-type protective mounting plate are movably embedded in the two T-slots, and the bottoms of the four pulleys are fitted with the surfaces inside the two T-slots.

[0011] As a preferred embodiment, the bottoms of the two forward and reverse motors are fixedly connected to the surfaces of the two motor plates, the surfaces of the two I-shaped moving blocks are movably embedded in the two T-slots, and the surfaces at both ends of the two threaded rods are embedded in the four bearing holes through bearings.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] The utility model connects the stainless steel pipe cutting and grinding device with an external power supply device, the external power supply device is electrically connected to the control terminal, electric cylinder one, motor, electric cylinder two, double-head motor, forward and reverse motor one and forward and reverse motor two and provides power, the control terminal is electrically connected to the electric cylinder one, motor, electric cylinder two, double-head motor, forward and reverse motor one and forward and reverse motor two and controls them in association; the stainless steel pipe to be cut is clamped by four stainless steel pipe clamps, the n-type protective mounting plate is moved by pulling the n-type protective mounting plate by holding the handle, the position of the cutting blade is observed through the observation window, the cutting blade is moved to the required cutting position, the required cutting position needs to be located between the two inner stainless steel pipe clamps, the electric cylinder one and the motor are started by the control terminal, the electric cylinder one drives the motor to move downward, the output end of the motor drives the cutting blade to rotate to cut the stainless steel pipe, and after the cutting is completed, the motor is stopped and the electric cylinder one is restored to the initial highest position by the control terminal, and then the control terminal is used to control the motor to stop and the electric cylinder one to restore the initial highest position, and then the control terminal is used to control the motor to stop and the electric cylinder one to restore the initial highest position, and then the control terminal is used to control the motor to stop and the electric cylinder one to restore the initial highest position, and then the control terminal is used to control the motor to stop and the electric cylinder one to restore the initial highest position. The two forward and reverse motors 1 are started at the end, and the output end of the forward and reverse motor 1 drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the work-type moving block, the work-type moving block can be moved inside the T-slot 2, so that the stainless steel pipes cut into two sections are moved away from each other to a suitable position, and then the forward and reverse motor 1 is closed through the control terminal, and the electric cylinder 2 is started through the control terminal to extend the electric cylinder 2. The two grinding cones move downward to the same horizontal position as the stainless steel pipe and then stop the electric cylinder 2. The two forward and reverse motors 1 are started in reverse through the control terminal respectively, so that the stainless steel pipes on both sides move inward to each other and fit with the grinding cone, and then the corresponding forward and reverse motor 1 is stopped, and then the double-headed motor is started through the control terminal, and the output end of the double-headed motor drives the grinding cones on both sides to rotate, and the two stainless steel pipes fitted therewith are polished. This design enables the n-type protective mounting plate to play a protective role during the cutting and polishing process. At the same time, the stainless steel pipe after cutting does not need to be moved to the polishing area for polishing, which reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An overview schematic diagram of a stainless steel pipe cutting and grinding device provided by the utility model;

[0015] Figure 2 A schematic diagram of a protective cutting and grinding component of a stainless steel pipe cutting and grinding device provided by the utility model;

[0016] Figure 3 A cross-sectional view of a bottom plate of a stainless steel pipe cutting and grinding device provided by the utility model;

[0017] Figure 4A schematic diagram of a clamping and moving assembly of a stainless steel pipe cutting and grinding device provided by the utility model;

[0018] Figure 5 A partial schematic diagram of a clamping and moving component of a stainless steel pipe cutting and grinding device provided by the utility model.

[0019] Legend:

[0020] 1. Bottom plate; 101. Motor plate 1; 102. T-slot 1; 103. T-slot 2; 104. Bearing hole 1; 2. Protective cutting and grinding assembly; 201. N-type protective mounting plate; 202. Support plate; 203. Connecting rod; 204. Pulley; 205. Grip; 206. Observation window; 207. Control terminal; 208. Electric cylinder 1; 209. N-type support plate 1; 210. Motor plate 2; 211. Rotating shaft 1; 212. Cutting disc; 213. Motor ; 214, electric cylinder two; 215, n-type support plate two; 216, motor plate three; 217, rotating shaft two; 218, grinding cone; 219, double-headed motor; 3, clamping moving assembly; 301, threaded rod; 302, forward and reverse motor one; 303, I-type moving block; 304, motor plate four; 305, T-slot three; 306, bearing hole two; 307, bidirectional threaded rod; 308, forward and reverse motor two; 309, T-type moving block; 310, stainless steel pipe clamp. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a stainless steel pipe cutting and grinding device, comprising: a bottom plate 1, both ends of the bottom plate 1 are fixedly connected with a motor plate 101, both sides of the top of the bottom plate 1 are provided with a T-slot 102, the top of the bottom plate 1 is provided with two T-slots 103, both ends of the two T-slots 103 are provided with a bearing hole 104, the two T-slots 102 are provided with a protective cutting and grinding assembly 2, and the two T-slots 103 are provided with a clamping moving assembly 3.

[0023] Specifically: the n-type protective mounting plate 201 is moved by pulling the handle 205, the position of the cutting blade 212 is observed through the observation window 206, and the cutting blade 212 is moved to the desired cutting position, and the electric cylinder 1 208 and the motor 213 are started by the control terminal 207 to cut the stainless steel pipe, and the two forward and reverse motors 1 302 are started by the control terminal 207 to realize the movement of the type moving block 303 inside the T-slot 2 103, and the electric cylinder 2 214 is started by the control terminal 207 to make the two stainless steel pipes fit with the grinding cone 218, and the stainless steel pipe is grinded by starting the double-headed motor 219. This design enables the n-type protective mounting plate 201 to play a protective role during the cutting and grinding process, and at the same time, the stainless steel pipe does not need to be moved to the grinding area after cutting for grinding, thereby reducing the labor intensity of the workers.

[0024] In one embodiment, the protective cutting and grinding assembly 2 includes an n-type protective mounting plate 201, and four support plates 202 are fixedly connected to the bottom of both ends of the n-type protective mounting plate 201. Two opposite ones of the eight support plates 202 form a group, and the inner sides of the four groups of support plates 202 are fixedly connected to connecting rods 203. The surfaces of the four connecting rods 203 are provided with pulleys 204 through bearing sleeves. A handle 205 is fixedly connected to one side of the n-type protective mounting plate 201, an observation window 206 is fixedly embedded on one side of the n-type protective mounting plate 201, and a control terminal 207 is fixedly connected to one side of the n-type protective mounting plate 201.

[0025] Specifically: the n-type protective mounting plate 201 plays a protective role in cutting and grinding. The bottoms of both ends of the n-type protective mounting plate 201 are T-shaped and can fit inside the two T-slots 102, which plays a limiting role. The observation window 206 is transparent, and the situation inside the n-type protective mounting plate 201 can be observed through the observation window 206.

[0026] In one embodiment, an electric cylinder 208 is fixedly connected to one side of the upper interior of the n-type protective mounting plate 201, an n-type support plate 209 is fixedly connected to the bottom of the electric cylinder 208, a motor plate 210 is fixedly connected to one side of the n-type support plate 209, a rotating shaft 211 is embedded in the interior of both sides of the n-type support plate 209 through bearings, a cutting blade 212 is fixedly sleeved on the surface of the rotating shaft 211, one end of the rotating shaft 211 is connected to a motor 213, the output end of the motor 213 is fixedly connected to the center of one end of the rotating shaft 211, and the top of the motor 213 is fixedly connected to the bottom of the motor plate 210.

[0027] Specifically: the electric cylinder 208 and the motor 213 are started through the control terminal 207, the electric cylinder 208 drives the motor 213 to move downward, and the output end of the motor 213 drives the cutting blade 212 to rotate to cut the stainless steel pipe.

[0028] In one embodiment, an electric cylinder 214 is fixedly connected to the other side of the upper interior of the n-type protective mounting plate 201, an n-type support plate 215 is fixedly connected to the bottom of the electric cylinder 214, a motor plate 3 216 is fixedly connected to the inner side of the n-type support plate 215, a rotating shaft 217 is embedded in the interior of both sides of the n-type support plate 215 through a bearing, a grinding cone 218 is fixedly sleeved on one end of the two rotating shafts 217, a double-headed motor 219 is connected to the other end of the two rotating shafts 217, an output end of the double-headed motor 219 is fixedly connected to the center of one end of the two rotating shafts 217, and the top of the double-headed motor 219 is fixedly connected to the bottom of the motor plate 3 216.

[0029] Specifically: the double-headed motor 219 is an existing motor with output terminals at both ends, and the specific structure is not described here.

[0030] In one embodiment, the clamping moving component 3 includes a threaded rod 301, one end of the threaded rod 301 is connected to a forward and reverse motor 1 302, the output end of the forward and reverse motor 1 302 is fixedly connected to the center of one end of the threaded rod 301, the surface of the threaded rod 301 is threadedly sleeved with a type moving block 303, one side of the type moving block 303 is fixedly connected to a motor plate 4 304, the surface of the type moving block 303 is provided with a T-slot 305, both ends of the T-slot 305 are provided with a bearing hole 2 306, and the interiors of the two bearing holes 2 306 are connected by shafts. A bidirectional threaded rod 307 is embedded in the socket, one end of the bidirectional threaded rod 307 is connected to a forward and reverse motor 2 308, the output end of the forward and reverse motor 2 308 is fixedly connected to the center of one end of the bidirectional threaded rod 307, the bottom of the forward and reverse motor 2 308 is fixedly connected to the surface of the motor plate 4 304, and the surface threads at both ends of the bidirectional threaded rod 307 are provided with two T-shaped moving blocks 309, the tops of the two T-shaped moving blocks 309 are fixedly connected to stainless steel pipe clamps 310, and the surfaces of the two T-shaped moving blocks 309 are movably embedded in the inside of the T-slot 3 305.

[0031] Specifically: the stainless steel pipe clamp 310 is an existing clamp that can clamp and fix the stainless steel pipe, and the specific structure is not repeated here; the forward and reverse motor 2 308 is started by the control terminal 207, and the output end of the forward and reverse motor 2 308 drives the bidirectional threaded rod 307 to rotate, so that the two T-shaped moving blocks 309 can move closer to or away from each other, and the distance between the two stainless steel pipe clamps 310 can be adjusted to clamp stainless steel pipes of different lengths, thereby increasing practicality.

[0032] In one embodiment, the bottoms of both ends of the n-type protective mounting plate 201 are movably embedded in the two T-slots 102 , and the bottoms of the four pulleys 204 are in contact with the surfaces inside the two T-slots 102 .

[0033] Specifically, the bottoms of both ends of the n-type protective mounting plate 201 are T-shaped and can fit inside the two T-slots 102 to play a role in limiting.

[0034] In one embodiment, the bottoms of the two forward and reverse motors 302 are fixedly connected to the surfaces of the two motor plates 101, the surfaces of the two I-shaped moving blocks 303 are movably embedded in the two T-slots 103, and the surfaces at both ends of the two threaded rods 301 are embedded in the four bearing holes 104 through bearings.

[0035] Specifically: fix the forward and reverse motor 302 on the surface of the motor plate 101 to prevent the forward and reverse motor 302 from shaking during operation and affecting the normal operation of the device.

[0036] Working principle: The stainless steel pipe cutting and grinding device is connected to an external power supply device, which is electrically connected to the control terminal 207, the electric cylinder 1 208, the motor 213, the electric cylinder 214, the double-headed motor 219, the forward and reverse motor 1 302 and the forward and reverse motor 2 308 and provides power. The control terminal 207 is electrically connected to the electric cylinder 1 208, the motor 213, the electric cylinder 214, the double-headed motor 219, the forward and reverse motor 1 302 and the forward and reverse motor 2 308 and performs associated control; the stainless steel pipe to be cut is clamped by four stainless steel pipe clamps 310, and the handle 205 is held by hand. Pull the n-type protective mounting plate 201 to move the n-type protective mounting plate 201, observe the position of the cutting blade 212 through the observation window 206, move the cutting blade 212 to the desired cutting position, the desired cutting position needs to be located between the two inner stainless steel pipe clamps 310, start the electric cylinder 208 and the motor 213 through the control terminal 207, the electric cylinder 208 drives the motor 213 to move downward, and the output end of the motor 213 drives the cutting blade 212 to rotate to cut the stainless steel pipe. After the cutting is completed, the control terminal 207 controls the motor 213 to stop and the electric cylinder 208 to restore the initial maximum The first forward and reverse motors 302 are turned on and off by the control terminal 207, and the output end of the first forward and reverse motors 302 drives the threaded rod 301 to rotate. Since the threaded rod 301 is threadedly connected with the workpiece moving block 303, the workpiece moving block 303 can be moved inside the T-slot 103, so that the stainless steel pipe cut into two sections moves away from each other to a suitable position. After that, the first forward and reverse motors 302 are turned off by the control terminal 207, and the electric cylinder 214 is started by the control terminal 207 to extend the electric cylinder 214. The two grinding cones 218 move downward to the same horizontal position as the stainless steel pipe, and then the electric cylinder 214 stops. , the two forward and reverse motors 302 are started in reverse directions respectively through the control terminal 207, so that the stainless steel pipes on both sides move inwards to each other and fit with the grinding cone 218, and then the corresponding forward and reverse motors 302 are stopped, and then the double-headed motor 219 is started through the control terminal 207, and the output end of the double-headed motor 219 drives the grinding cones 218 on both sides to rotate, and the two stainless steel pipes that fit with it are ground. This design allows the n-type protective mounting plate 201 to play a protective role during the cutting and grinding process. At the same time, the stainless steel pipe does not need to be moved to the grinding area after cutting for grinding, which reduces the labor intensity of workers.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A stainless steel pipe cutting and grinding device, characterized in that: include: A base plate (1), wherein both ends of the base plate (1) are fixedly connected to a motor plate 1 (101), both sides of the top of the base plate (1) are provided with a T-slot 1 (102), the top of the base plate (1) is provided with two T-slots 2 (103), both ends of the two T-slots 2 (103) are provided with a bearing hole 1 (104), the two T-slots 1 (102) are provided with a protective cutting and grinding assembly (2), and the two T-slots 2 (103) are provided with a clamping and moving assembly (3).

2. A stainless steel pipe cutting and grinding device according to claim 1, characterized in that: The protective cutting and grinding assembly (2) comprises an n-type protective mounting plate (201), the bottoms of both ends of the n-type protective mounting plate (201) are fixedly connected to four support plates (202), two opposite ones of the eight support plates (202) form a group, the inner sides of the four groups of support plates (202) are fixedly connected to connecting rods (203), the surfaces of the four connecting rods (203) are provided with pulleys (204) through bearing sleeves, one side of the n-type protective mounting plate (201) is fixedly connected to a handle (205), one side of the n-type protective mounting plate (201) is fixedly embedded with an observation window (206), and one side of the n-type protective mounting plate (201) is fixedly connected to a control terminal (207).

3. A stainless steel pipe cutting and grinding device according to claim 2, characterized in that: An electric cylinder 1 (208) is fixedly connected to one side of the upper part of the n-type protective mounting plate (201), an n-type support plate 1 (209) is fixedly connected to the bottom of the electric cylinder 1 (208), a motor plate 2 (210) is fixedly connected to one side of the n-type support plate 1 (209), a rotating shaft 1 (211) is embedded in the inside of both sides of the n-type support plate 1 (209) through bearings, a cutting blade (212) is fixedly sleeved on the surface of the rotating shaft 1 (211), one end of the rotating shaft 1 (211) is connected to a motor (213), an output end of the motor (213) is fixedly connected to the center of one end of the rotating shaft 1 (211), and the top of the motor (213) is fixedly connected to the bottom of the motor plate 2 (210).

4. A stainless steel pipe cutting and grinding device according to claim 2, characterized in that: The other side of the upper part of the n-type protective mounting plate (201) is fixedly connected to an electric cylinder 2 (214), the bottom of the electric cylinder 2 (214) is fixedly connected to an n-type support plate 2 (215), the inner side of the n-type support plate 2 (215) is fixedly connected to a motor plate 3 (216), the inside of both sides of the n-type support plate 2 (215) is embedded with a rotating shaft 2 (217) through a bearing, one end of the two rotating shafts 2 (217) is fixedly sleeved with a grinding cone (218), the other end of the two rotating shafts 2 (217) is connected to a double-headed motor (219), the output end of the double-headed motor (219) is fixedly connected to the center of one end of the two rotating shafts 2 (217), and the top of the double-headed motor (219) is fixedly connected to the bottom of the motor plate 3 (216).

5. The stainless steel pipe cutting and grinding device according to claim 1, characterized in that: The clamping moving assembly (3) comprises a threaded rod (301), one end of the threaded rod (301) is connected to a forward and reverse motor (302), the output end of the forward and reverse motor (302) is fixedly connected to the center of one end of the threaded rod (301), a threaded sleeve is provided on the surface of the threaded rod (301) with a type moving block (303), one side of the type moving block (303) is fixedly connected to a motor plate (304), a T-shaped slot (305) is provided on the surface of the type moving block (303), both ends of the T-shaped slot (305) are provided with a bearing hole (306), and the insides of the two bearing holes (306) are connected by shafts. A bidirectional threaded rod (307) is embedded in the housing, one end of the bidirectional threaded rod (307) is connected to a forward and reverse motor 2 (308), the output end of the forward and reverse motor 2 (308) is fixedly connected to the center of one end of the bidirectional threaded rod (307), the bottom of the forward and reverse motor 2 (308) is fixedly connected to the surface of the motor plate 4 (304), the surface threads at both ends of the bidirectional threaded rod (307) are provided with two T-shaped moving blocks (309), the tops of the two T-shaped moving blocks (309) are fixedly connected to a stainless steel pipe clamp (310), and the surfaces of the two T-shaped moving blocks (309) are movably embedded in the interior of the T-shaped slot 3 (305).

6. A stainless steel pipe cutting and grinding device according to claim 2, characterized in that: The bottoms of both ends of the n-shaped protective mounting plate (201) are movably embedded in the two T-shaped slots (102), and the bottoms of the four pulleys (204) are in contact with the surfaces inside the two T-shaped slots (102).

7. A stainless steel pipe cutting and grinding device according to claim 5, characterized in that: The bottoms of the two forward and reverse motors (302) are fixedly connected to the surfaces of the two motor plates (101), the surfaces of the two I-shaped moving blocks (303) are movably embedded in the two T-slots (103), and the surfaces of both ends of the two threaded rods (301) are embedded in the four bearing holes (104) through bearings.

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