Cutting equipment for machining and manufacturing metal showing stand

Abstract

The invention provides cutting equipment for machining and manufacturing a metal showing stand, and relates to the technical field of cutting machine tools, the cutting equipment comprises a cutting operation table and an electric driving assembly, and two relay gears in meshing transmission with an inner gear ring are symmetrically and rotationally arranged in the inner space of the inner gear ring; a shaft ring is rotatably mounted on the power output shaft on the upper side, two L-shaped mounting rods are welded to the periphery of the shaft ring, a driven gear assembly and a small driven gear are rotatably mounted on the longitudinal rod sections of the two L-shaped mounting rods correspondingly, and the driven gear assembly is integrally formed by a large driven gear and a transmission gear which are coaxially arranged; the transmission gear and the small driven gear are equal in diameter and are in meshed transmission with the driving gear; when the shaft ring is driven by forward and reverse torsion, the large driven gear and the small driven gear can be controlled to be alternately engaged with the two relay gears for transmission. The cutting saw blade can be prevented from cutting a low-hardness pipe at a constant low-speed sliding cutting speed, and the cutting machining speed of the low-hardness pipe can be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machine tools, and particularly to a cutting device for manufacturing metal display racks. Background Art

[0002] Metal display racks are usually made by welding metal pipes. When manufacturing metal display racks using metal pipes, a cutting device is required to perform fixed-length cutting on the metal pipes.

[0003] In existing cutting devices, in order to reduce the number of power units, the up-and-down sliding cutting action and the rotary cutting action of the cutting saw blade are mostly set to be synchronously driven by one power unit. However, the cutting speed of the power unit driving the up-and-down sliding of the cutting saw blade is mostly non-adjustable. As a result, the existing cutting devices cannot, on the basis of ensuring synchronous driving of the up-and-down sliding cutting action and the rotary cutting action of the cutting saw blade, adjust the up-and-down sliding cutting rate of the cutting saw blade according to the hardness of the pipes for manufacturing metal display racks. Consequently, the cutting saw blade performs cutting on low-hardness pipes with a constant low-speed sliding cutting action, reducing the cutting processing efficiency of low-hardness pipes. Summary of the Invention

[0004] In view of this, the present invention provides a cutting device for manufacturing metal display racks to solve the problem of low cutting processing efficiency of existing cutting devices for low-hardness pipes.

[0005] The technical solution proposed by the present invention is as follows: A cutting device for manufacturing metal display racks, which is used for cutting the pipes for manufacturing metal display racks. Specifically, it includes a cutting operation table and an electric drive assembly. A U-shaped vertical support frame is welded to the top of the cutting operation table, and an electric drive assembly that slides vertically is installed in the internal space of the U-shaped vertical support frame; The electric drive assembly is integrally composed of a motor and a circular structure reducer. A cutting saw blade is provided on the reducer. A power output shaft is rotatably provided at the central part of the reducer. A driving gear is fixedly sleeved on the first end part of the power output shaft; A track ring concentric with the upper power output shaft is welded to the housing of the reducer, and an internal gear ring is rotatably provided inside the track ring; Two relay gears that mesh and drive with it are symmetrically and rotatably provided in the internal space of the internal gear ring; A shaft ring is rotatably installed on the upper power output shaft. Two L-shaped mounting rods are welded to the outer circumference of the shaft ring. A driven gear assembly and a small driven gear are respectively rotatably installed on the longitudinal rod sections of the two L-shaped mounting rods. The driven gear assembly is integrally formed by a large driven gear and a transmission gear arranged coaxially. The transmission gear and the small driven gear have equal diameters and both mesh and drive with the driving gear; When the shaft ring is driven to rotate forward and backward, it can control the large driven gear and the small driven gear to alternately mesh and drive with the two relay gears.

[0006] Furthermore, the outer periphery of the collar is welded with a tilting driving rod, the head end of the tilting driving rod is welded with an L-shaped mounting plate, and the vertically bent portion of the L-shaped mounting plate and the head end of the tilting driving rod are penetrated and slidably mounted with an insertion shaft in the form of a spring push positioning; The part of the reducer housing located inside the track ring is provided with two positioning holes at intervals, and the plug shaft is plugged and matched with the two positioning holes in a selectable manner; The shaft ring is located between the driving gear and the housing of the reducer.

[0007] Furthermore, it also includes two U-shaped clamping frames symmetrically and slidably arranged on the cutting operation table, and the pipe is placed on the top of the cutting operation table and is clamped and fixed by the two U-shaped clamping frames.

[0008] Furthermore, the track ring is located on the side of the reducer housing facing the driving gear, the cross section of the track ring is an L-shaped structure and an annular track groove is formed between the track ring and the reducer housing; A swivel is welded on the side of the inner gear ring facing the reducer, and the swivel is rotatably matched with the annular track groove.

[0009] Furthermore, two gear shafts are symmetrically welded to the portion of the reducer housing located on the inner side of the track ring, and two relay gears are rotatably mounted on the two gear shafts respectively.

[0010] Furthermore, a transmission short shaft is welded on the side of the inner gear ring away from the electric drive assembly, a longitudinal force transmission shaft is welded at the middle position of the top of the U-shaped vertical support frame, and both ends of the connecting rod are rotatably connected to the longitudinal force transmission shaft and the transmission short shaft respectively.

[0011] Furthermore, a second power output shaft is rotatably provided on the bottom side of the reducer, and the cutting saw blade is fixedly sleeved on the head end portion of the second power output shaft.

[0012] Furthermore, the cutting operation table is composed of a table plate and a fence support box which are welded together. Two horizontal track grooves are arranged through the middle part of the table plate at intervals. The two vertical support side rods of the U-shaped clamping frame are correspondingly slidably matched with the two horizontal track grooves. Four limiting plates are symmetrically welded to the middle part of the side rods of the vertical support of the U-shaped clamping frame, wherein the two limiting plates at the upper side are slidably fitted with the top end surface of the table plate, and the two limiting plates at the lower side are slidably fitted with the bottom end surface of the table plate.

[0013] Furthermore, a transverse bearing plate is welded at the lower middle position inside the enclosure support box, a cylinder is fixedly installed at the top of the middle section of the transverse bearing plate, and two pull rods are symmetrically rotatably connected between the top of the telescopic rod of the cylinder and the middle part of the two longitudinal side axes on the bottom side of the U-shaped clamp frame.

[0014] Further, a U-shaped hanging frame is welded at the middle bottom position of the top end of the U-shaped vertical support frame. A proximity switch is fixedly installed through the middle bottom position of the U-shaped hanging frame, and the proximity switch is directly opposite to the motor up and down. On one side part of the top end of a long side wall of the cutting operation table, an electric control box is fixedly installed. A controller, an intermediate relay and a contactor are arranged in the electric control box. The controller is electrically connected with the intermediate relay. The intermediate relay is electrically connected with a solenoid valve serially installed on the air supply pipeline of the air cylinder. The proximity switch is communicatively connected with the controller. The controller is electrically connected with the contactor. The contactor is electrically connected with the motor.

[0015] The cutting equipment for processing and manufacturing the metal display rack provided by the present invention has the following beneficial effects: First, through the power transmission of the large driven gear or the small driven gear and in cooperation with the crank-slider mechanism composed of the internal gear ring, the connecting rod and the electric drive assembly, the high-speed rotation cutting action and the up-and-down sliding cutting action of the cutting saw blade can be driven by the common electric drive assembly. This can save the need to configure drive units for the above two actions respectively, help reduce the number of configured drive units, and improve the overall cost and energy consumption of the cutting equipment.

[0016] Second, the rotation speed of the internal gear ring and the sliding cutting rate of the cutting saw blade can be adjusted by the switching and alternating transmission of the transmission gear and the large driven gear with the two relay gears. This enables the cutting saw blade to cut pipes with different low and high hardnesses at different high and low sliding cutting speeds respectively, avoiding the cutting of low-hardness pipes by the cutting saw blade at a constant low sliding cutting speed, helping to improve the cutting processing rate of low-hardness pipes, and the setting that the sliding cutting speed of the cutting saw blade can be adjusted high and low can improve the flexibility and practicability of the use of the cutting equipment.

[0017] Third, through the two L-shaped mounting rods, when the shaft ring switches and adjusts the driving states of the small driven gear and the large driven gear by positive and negative torsion, it can synchronously drive the small driven gear and the large driven gear to swing, and simultaneously perform the engagement contact coupling or separation decoupling operation of the small driven gear and the large driven gear with the corresponding side relay gears, and complete the switching and adjustment operation of the driving states of the small driven gear and the large driven gear at one time. This saves the trouble of sequentially performing the above contact coupling and decoupling operations step by step when performing this switching and adjustment operation, is convenient to operate and use, and helps to improve the switching and adjustment efficiency of the driving states of the small driven gear and the large driven gear. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0020] In the accompanying drawings: Figure 1 A schematic diagram of the back-side structure of the present invention is shown; Figure 2 A schematic diagram of the front-side structure of the present invention is shown; Figure 3 A schematic diagram of the internal structure of the fence support box in the present invention is shown; Figure 4 A schematic diagram of the installation positions of the internal gear ring and the driving gear in the present invention is shown; Figure 5 A schematic diagram of a half-sectional structure of the track ring in the present invention is shown; Figure 6 A schematic diagram of the structure of the U-shaped clamping frame and the air cylinder in the present invention is shown; Figure 7 Shows the present invention Figure 4 The enlarged schematic diagram of part A in; Figure 8 A schematic diagram of the disassembled state of the insertion shaft in the present invention is shown; Figure 9 A schematic diagram of the disassembled state of the proximity switch in the present invention is shown; Figure 10 A schematic diagram of the structure of the driven gear assembly in the present invention is shown; Figure 11 A control flow chart of the present invention is shown.

[0021] List of reference numerals: 1. Cutting operation table; 101. Fence support box; 1011. Horizontally arranged bearing plate; 102. Table board; 1021. Horizontally arranged track groove; 103. U-shaped vertical support frame; 1031. Vertically arranged force transmission shaft; 1032. U-shaped hanging frame; 104. U-shaped clamping frame; 1041. Limiting plate; 105. Connecting rod; 106. Pull rod; 2. Electric drive assembly; 201. Motor; 202. Reducer; 2021. Positioning hole; 2022. Gear shaft; 203. First power output shaft; 204. Cutting saw blade; 205. Track ring; 206. Internal gear ring; 2061. Rotating ring; 2062. Transmission short shaft; 207. Relay gear; 208. Driving gear; 209. Second power output shaft; 3. Pipe; 4. Proximity switch; 5. Electric control box; 6. Shaft collar; 601. L-shaped mounting rod; 602. Inclined drive rod; 6021. L-shaped mounting plate; 603. Driven gear assembly; 6031. Large driven gear; 6032. Transmission gear; 604. Small driven gear; 605. Insertion shaft; 7. Air cylinder; 701. Expansion rod. Detailed implementation mode

[0022] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0023] The following is an embodiment provided by the present invention. Please refer to Figures 1 to 11 : The present invention provides a cutting device for the processing and manufacturing of metal display racks, which is used for cutting the pipes 3 for manufacturing metal display racks. It includes a cutting operation table 1 and an electric drive assembly 2. A U-shaped vertical support frame 103 is welded to the top of the cutting operation table 1, and the electric drive assembly 2 that slides vertically is installed in the internal space of the U-shaped vertical support frame 103; The electric drive assembly 2 is integrally composed of a motor 201 and a reducer 202 with a circular structure. A cutting saw blade 204 is provided on the reducer 202. A power output shaft 203 is rotatably arranged at the central part of the reducer 202. A driving gear 208 is fixedly sleeved on the head end part of the power output shaft 203; A track ring 205 concentric with the upper power output shaft 203 is welded to the housing of the reducer 202. An internal gear ring 206 is rotatably arranged inside the track ring 205; Two relay gears 207 meshing and driving with it are symmetrically and rotatably arranged in the internal space of the internal gear ring 206; A shaft ring 6 is rotatably installed on the upper power output shaft 203. Two L-shaped mounting rods 601 are welded to the outer periphery of the shaft ring 6. A driven gear assembly 603 and a small driven gear 604 are respectively rotatably installed on the longitudinal rod sections of the two L-shaped mounting rods 601. The driven gear assembly 603 is integrally formed by a large driven gear 6031 and a transmission gear 6032 arranged coaxially. The transmission gear 6032 and the small driven gear 604 have the same diameter and are both meshed and driven with the driving gear 208.

[0024] Preferably, an inclined driving rod 602 is also welded to the outer periphery of the shaft ring 6. An L-shaped mounting plate 6021 is welded to the head end part of the inclined driving rod 602. A plug shaft 605 is slidably installed through the vertical bending part of the L-shaped mounting plate 6021 and the head end of the inclined driving rod 602 in a form of spring top push positioning; Two positioning holes 2021 are spaced apart on the part of the housing of the reducer 202 inside the track ring 205. The plug shaft 605 is selectively inserted and matched with the two positioning holes 2021; The shaft ring 6 is limited between the driving gear 208 and the housing of the reducer 202.

[0025] Preferably, it also includes two U-shaped clamping frames 104 symmetrically and slidably arranged on the cutting operation table 1.

[0026] Preferably, the orbital ring 205 is located on the side of the reducer 202 housing facing the driving gear 208, the cross-section of the orbital ring 205 is an L-shaped structure and an annular orbital groove is formed between the orbital ring 205 and the housing of the reducer 202; a swivel ring 2061 is welded on the side of the inner ring 206 facing the reducer 202, and the swivel ring 2061 rotates in cooperation with the annular orbital groove.

[0027] Preferably, two gear shafts 2022 are symmetrically welded to the portion of the reducer 202 housing located inside the track ring 205 , and two relay gears 207 are rotatably mounted on the two gear shafts 2022 , respectively.

[0028] Preferably, a transmission short shaft 2062 is welded on the side of the inner gear ring 206 facing away from the electric drive assembly 2, a longitudinal force transmission shaft 1031 is welded at the middle position of the top end of the U-shaped vertical support frame 103, and both ends of the connecting rod 105 are rotatably connected to the longitudinal force transmission shaft 1031 and the transmission short shaft 2062 respectively.

[0029] Preferably, a second power output shaft 209 is rotatably provided on the bottom side of the reducer 202 , and the cutting saw blade 204 is fixedly sleeved on the head end portion of the second power output shaft 209 .

[0030] Preferably, the cutting operation table 1 as a whole is composed of a table plate 102 and a fence support box 101 which are arranged upper and lower and welded together. Two horizontal track grooves 1021 are opened and penetrated in the middle part of the table plate 102 at intervals, and the two vertical support side rods of the U-shaped clamping frame 104 correspond to the two horizontal track grooves 1021 for sliding cooperation; four limit plates 1041 are symmetrically welded in the middle part of the vertical support side rods of the U-shaped clamping frame 104, among which the two limit plates 1041 on the upper side are slidably fitted with the top end surface of the table plate 102, and the two limit plates 1041 on the lower side are slidably fitted with the bottom end surface of the table plate 102.

[0031] Preferably, a transverse bearing plate 1011 is welded to the lower middle position inside the enclosure support box 101, and a cylinder 7 is fixedly installed on the top of the middle section of the transverse bearing plate 1011. Two pull rods 106 are symmetrically connected to the top of the telescopic rod 701 of the cylinder 7 and the middle part of the longitudinal side axes on the bottom sides of the two U-shaped clamp frames 104 for rotation.

[0032] Preferably, a U-shaped hanging frame 1032 is welded at the middle bottom position of the top end of the U-shaped vertical support frame 103. A proximity switch 4 is fixedly penetrated at the middle bottom position of the bottom of the U-shaped hanging frame 1032. The proximity switch 4 is vertically aligned with the motor 201. On one side of the top end of a long side wall of the cutting operation table 1, an electric control box 5 is fixedly installed. A controller, an intermediate relay and a contactor are arranged in the electric control box 5. The controller is electrically connected with the intermediate relay. The intermediate relay is electrically connected with a solenoid valve serially installed on the air supply pipeline of the air cylinder 7. The proximity switch 4 is communicatively connected with the controller. The controller is electrically connected with the contactor. The contactor is electrically connected with the motor 201. The controller is an automatic controller such as a PLC or a single-chip microcomputer. The controller starts and stops the motor 201 through the contactor. A button arranged on the electric control box 5 is electrically connected with the controller. The start and stop operation of the motor 201 by the controller can be specifically implemented through this button. The proximity switch 4 is a photoelectric proximity switch.

[0033] The following makes a detailed elaboration and explanation on the specific details, implementation steps, functions and mutual relationships of each feature, and the role it plays in realizing the present invention: During cutting processing, the pipe 3 to be cut is placed on the top end of the horizontally arranged bearing plate 1011 and clamped and fixed between the parts protruding above the horizontally arranged bearing plate 1011 on the four vertical side rods of the U-shaped clamping frame 104. The two pull rods 106, the two U-shaped clamping frames 104 and the telescopic rod 701 together form two sets of crank-slider mechanisms. Through these two sets of mechanisms, when the air cylinder 7 drives the telescopic rod 701 to slide up and down in a telescopic manner, the two U-shaped clamping frames 104 can be driven to slide towards each other to loosen and tighten the pipe 3 before and after cutting.

[0034] The speed reducer 202 adopts a worm and worm gear transmission form; the rotational speed on the first power output shaft 203 is much lower than that of the second power output shaft 209; the speed reducer 202 drives the cutting saw blade 204 to rotate at high speed through the second power output shaft 209; the internal gear ring 206, the connecting rod 105 and the electric drive assembly 2 together form a crank-slider mechanism. Through this mechanism, when the internal gear ring 206 is driven to rotate, the reverse pulling force or pushing force acting on the electric drive assembly 2 through the connecting rod 105 can drive the electric drive assembly 2 and the high-speed rotating cutting saw blade 204 to slide up and down to cut the pipe 3; through the meshing transmission of the large driven gear 6031 and the relay gear 207 at the corresponding position, or the meshing transmission of the small driven gear 604 and the relay gear 207 at the corresponding position, the first power output shaft 203 and the driving gear 208 can be meshed to drive the internal gear ring 206 to rotate, providing the driving force for the cutting saw blade 204 to slide up and down for cutting. In this way, through the power transmission of the large driven gear 6031 or the small driven gear 604 and in cooperation with the crank-slider mechanism composed of the internal gear ring 206, the connecting rod 105 and the electric drive assembly 2, the high-speed rotating cutting action and the up-and-down sliding cutting action of the cutting saw blade 204 can share the electric drive assembly 2 for driving. This can save the need to configure drive units for the above two actions separately, helping to reduce the number of configured drive units and improve the overall cost and energy consumption of the cutting equipment.

[0035] When the forward and reverse torsion shaft collar 6 is rotated, the shaft collar 6 can swing and drive the small driven gear 604 and the large driven gear 6031 through two L-shaped mounting rods 601, controlling the small driven gear 604 and the large driven gear 6031 to alternately engage and transmit with two relay gears 207. Among them, when the small driven gear 604 meshes and transmits with the relay gear 207 at the corresponding position, the driving gear 208 is indirectly transmitted with the internal gear ring 206 through the small driven gear 604 and this relay gear 207. When the large driven gear 6031 meshes and transmits with the relay gear 207 at the corresponding position, the driving gear 208 is indirectly transmitted with the internal gear ring 206 through the large driven gear 6031, this relay gear 207 and the transmission gear 6032. Since the diameters of the transmission gear 6032 and the small driven gear 604 are equal, the driving gear 208 meshes and drives the large driven gear 6031 and the small driven gear 604 at the same rotational speed. Also, since the transmission ratio of the transmission gear 6032 to the relay gear 207 is less than the transmission ratio of the large driven gear 6031 to the relay gear 207, when the driving gear 208 is indirectly transmitted with the internal gear ring 206 through the small driven gear 604, the rotational speed of the driven internal gear ring 206 is greater than the rotational speed of the driven internal gear ring 206 when the driving gear 208 is indirectly transmitted with the internal gear ring 206 through the large driven gear 6031. Thus, the rotational speed of the internal gear ring 206 and the sliding cutting rate of the cutting saw blade 204 can be adjusted by the switching and alternating transmission of the transmission gear 6032 and the large driven gear 6031 with two relay gears 207. This enables the cutting saw blade 204 to cut the pipes 3 with different low and high hardnesses at different high and low sliding cutting speeds respectively (when facing the pipes 3 with high hardness, it is necessary to slow down the sliding cutting speed of the cutting saw blade 204 to reduce the wear of the cutting saw blade 204 caused by the high-hardness pipes 3 and avoid the high-hardness pipes 3 that are difficult to cut quickly from pushing the cutting saw blade 204 back and breaking it. On the contrary, when facing the pipes 3 with low hardness, the cutting saw blade 204 can increase the sliding cutting speed), avoiding the cutting saw blade 204 from cutting the pipes 3 with low hardness at a constant low sliding cutting speed, which helps to improve the cutting processing rate of the pipes 3 with low hardness. Moreover, the setting that the sliding cutting speed of the cutting saw blade 204 can be adjusted high and low can enhance the flexibility and practicality of the use of the cutting equipment.

[0036] Through two L-shaped mounting rods 601, during the process of switching and adjusting the driving states of the small driven gear 604 and the large driven gear 6031, when the positive rotating shaft collar 6 is rotated, the small driven gear 604 can be swung and driven to the working state of meshing and contacting with the corresponding relay gear 207 for transmission. At the same time, the large driven gear 6031 can be swung and driven to the power decoupling state of separating from the corresponding relay gear 207. Similarly, when the reverse rotating shaft collar 6 is rotated, the large driven gear 6031 can be swung and driven to the power coupling state of meshing and contacting with the corresponding relay gear 207. At the same time, the small driven gear 604 can be swung and driven to the power decoupling state of separating from the corresponding relay gear 207. In this way, through the two L-shaped mounting rods 601, when the shaft collar 6 is rotated forward and backward to switch and adjust the driving states of the small driven gear 604 and the large driven gear 6031, the small driven gear 604 and the large driven gear 6031 can be synchronously driven to swing, and at the same time, the operations of engaging and coupling or separating and decoupling the small driven gear 604 and the large driven gear 6031 with the corresponding relay gear 207 are performed, and the switching and adjustment operation of the driving states of the small driven gear 604 and the large driven gear 6031 is completed at one time. This saves the trouble of sequentially performing the above-mentioned engaging and coupling and separating and decoupling operations when performing this switching and adjustment operation, is convenient to operate and use, and helps to improve the switching and adjustment efficiency of the driving states of the small driven gear 604 and the large driven gear 6031.

[0037] The positive and reverse torsional driving of the shaft collar 6 can be implemented through the inclined driving rod 602 and the insertion shaft 605. The insertion shaft 605 is inserted and matched with the two positioning holes 2021 to insert and position the shaft collar 6, so that the small driven gear 604 is maintained in the working state of meshing and transmitting with the corresponding relay gear 207 or the large driven gear 6031 is maintained in the working state of meshing and transmitting with the corresponding relay gear 207.

[0038] Working principle of this embodiment: When in use, first power on the cutting device as a whole, and place the pipe 3 to be cut on the part of the top of the horizontally placed bearing plate 1011 between the two U-shaped clamping frames 104. Then start the motor 201 through the button on the electric control box 5. After the motor 201 is started, it drives the cutting saw blade 204 to rotate at high speed through the speed reducer 202 and drives the electric drive assembly 2 as a whole and the moving cutting saw blade 204 to slide up and down. When the electric drive assembly 2 and the moving cutting saw blade 204 are driven to slide down, gas cutting is performed on the pipe 3. During this process, the distance between the proximity switch 4 and the motor 201 gradually increases. When this distance is greater than the trigger distance of the proximity switch 4 and the cutting saw blade 204 moves down close to the pipe 3, the proximity switch 4 emits a low-level signal and transmits the low-level signal to the controller. When the controller receives the low-level signal, it starts the solenoid valve through the intermediate relay to control the pressurized gas to enter the rod chamber of the cylinder 7 and push the telescopic rod 701 to slide down. When the telescopic rod 701 slides down, it drives the two U-shaped clamping frames 104 to slide closer to each other to automatically clamp the pipe 3 for the cutting saw blade 204 to perform downward cutting on the pipe 3. When the cutting saw blade 204 slides down and cuts off the pipe 3, the cutting saw blade 204 and the electric drive assembly 2 are driven to slide up and reset. During this process, the distance between the proximity switch 4 and the motor 201 gradually decreases. When this distance is less than the trigger distance of the proximity switch 4, the proximity switch 4 emits a high-level signal and transmits the high-level signal to the controller. When the controller receives the high-level signal, it closes the solenoid valve through the intermediate relay to control the pressurized gas to enter the rodless chamber of the cylinder 7 and push the telescopic rod 701 to slide up. When the telescopic rod 701 slides up, it drives the two U-shaped clamping frames 104 to slide away from each other to automatically release the cut pipe 3.

[0039] The cutting device has two usage states, one is the continuous cutting and processing usage state, and the other is the single cutting and processing usage state. Among them, when in continuous cutting and processing usage, keep the motor 201 in a continuous startup state, and drive the electric drive assembly 2 and the cutting saw blade 204 to continuously slide up and down through the motor 201 to perform continuous segmented cutting and processing on the pipe 3. Note that in this usage state, it is necessary to perform feeding and loading on the pipe 3 by using the time interval of the up and down sliding switching of the cutting saw blade 204. When in single cutting and processing usage, it is necessary to click to start and stop the motor 201 to control the cutting saw blade 204 to slide down once during cutting and stay in the stopped and reset state after cutting is completed.

[0040] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention, and other structures can refer to the general design.

[0041] 2. Without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0042] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cutting device for manufacturing a metal display rack, used for cutting a pipe (3) for manufacturing a metal display rack, comprising a cutting operation table (1) and an electric drive assembly (2), wherein a U-shaped vertical support frame (103) is welded to the top of the cutting operation table (1), and a vertically sliding electric drive assembly (2) is installed in the internal space of the U-shaped vertical support frame (103); It is characterized in that The electric drive assembly (2) is composed of a motor (201) and a circular reducer (202), wherein a cutting saw blade (204) is arranged on the reducer (202), a power output shaft (203) is rotatably arranged at the center of the reducer (202), and a driving gear (208) is fixedly sleeved on the head end of the power output shaft (203); a track ring (205) is welded on the housing of the reducer (202) and is arranged concentrically with the upper power output shaft (203), and an inner gear ring (206) is rotatably arranged inside the track ring (205); two relay gears (207) meshing with the inner gear ring (206) are symmetrically rotatably arranged in the internal space of the inner gear ring (206); the upper power output shaft (203) is provided with a driving gear (208); A shaft collar (6) is rotatably mounted on the output shaft (203), two L-shaped mounting rods (601) are welded to the outer circumference of the shaft collar (6), and a driven gear assembly (603) and a small driven gear (604) are rotatably mounted on the longitudinal rod sections of the two L-shaped mounting rods (601), respectively. The driven gear assembly (603) is integrally formed by a large driven gear (6031) and a transmission gear (6032) arranged coaxially, and the transmission gear (6032) and the small driven gear (604) have equal diameters and are both meshed with the driving gear (208) for transmission. When the shaft collar (6) is driven by forward and reverse torsional rotation, the large driven gear (6031) and the small driven gear (604) can be controlled to alternately mesh with the two relay gears (207) for transmission.

2. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: The outer periphery of the shaft ring (6) is also welded with a tilting driving rod (602), the head end portion of the tilting driving rod (602) is welded with an L-shaped mounting plate (6021), and the vertically bent portion of the L-shaped mounting plate (6021) and the head end of the tilting driving rod (602) are penetrated by a spring-pushing positioning form and a plug shaft (605) is slidably mounted thereon; Two positioning holes (2021) are provided at intervals on the portion of the reducer (202) housing located inside the track ring (205), and the plug shaft (605) is plugged into and matched with the two positioning holes (2021) in a selectable manner; The shaft collar (6) is located between the driving gear (208) and the housing of the reducer (202).

3. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: It also comprises two U-shaped clamping frames (104) symmetrically and slidably arranged on the cutting operation table (1); the pipe (3) is placed on the top of the cutting operation table (1) and is clamped and fixed by the two U-shaped clamping frames (104).

4. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: The track ring (205) is located on a side of the housing of the reducer (202) facing the driving gear (208); the cross section of the track ring (205) is an L-shaped structure and an annular track groove is formed between the track ring (205) and the housing of the reducer (202); A rotating ring (2061) is welded on the side of the inner gear ring (206) facing the reducer (202), and the rotating ring (2061) is rotatably matched with the annular track groove.

5. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: Two gear shafts (2022) are symmetrically welded to the portion of the reducer (202) housing located inside the track ring (205), and two relay gears (207) are rotatably mounted on the two gear shafts (2022) respectively.

6. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: A transmission short shaft (2062) is welded to a side of the inner gear ring (206) facing away from the electric drive assembly (2), a longitudinal force transmission shaft (1031) is welded to the middle position of the top end of the U-shaped vertical support frame (103), and two ends of the connecting rod (105) are rotatably connected to the longitudinal force transmission shaft (1031) and the transmission short shaft (2062), respectively.

7. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: A second power output shaft (209) is rotatably disposed on the bottom side of the reducer (202), and the cutting saw blade (204) is fixedly sleeved on the head end portion of the second power output shaft (209).

8. The cutting equipment for manufacturing a metal display stand according to claim 3, characterized in that: The cutting operation table (1) is composed of a table plate (102) and a fence support box (101) which are welded together and arranged above and below. Two transverse track grooves (1021) are arranged through the middle of the table plate (102) at intervals. Two vertical support side rods of the U-shaped clamping frame (104) are slidably matched with the two transverse track grooves (1021). Four limiting plates (1041) are symmetrically welded to the middle part of the vertical support side rod of the U-shaped clamp frame (104), wherein the two limiting plates (1041) on the upper side are slidably fitted with the top end surface of the table plate (102), and the two limiting plates (1041) on the lower side are slidably fitted with the bottom end surface of the table plate (102).

9. The cutting equipment for manufacturing a metal display stand according to claim 8, characterized in that: A transverse bearing plate (1011) is welded at a lower middle position inside the enclosure support box (101), a cylinder (7) is fixedly mounted at the top of the middle section of the transverse bearing plate (1011), and two pull rods (106) are symmetrically rotatably connected between the top of the telescopic rod (701) of the cylinder (7) and the middle part of the longitudinal side shafts at the bottom of the two U-shaped clamping frames (104).

10. The cutting equipment for manufacturing a metal display stand according to claim 1, characterized in that: A U-shaped hanging frame (1032) is welded to the middle bottom position of the top of the U-shaped vertical support frame (103), and a proximity switch (4) is fixed through the middle position of the bottom of the U-shaped hanging frame (1032), and the proximity switch (4) is vertically opposite to the motor (201); An electric control box (5) is fixedly mounted on one side of the top end of a long side wall of the cutting operation table (1). The electric control box (5) is provided with a controller, an intermediate relay and a contactor. The controller is electrically connected to the intermediate relay, the intermediate relay is electrically connected to a solenoid valve installed in series on the air supply pipeline of the cylinder (7), the proximity switch (4) is communicatively connected to the controller, the controller is electrically connected to the contactor, and the contactor is electrically connected to the motor (201).

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