Differential feed type pipeline cutting machine structure and differential feed type pipe cutting machine

Abstract

The invention provides a differential feed type pipeline cutting machine structure and a differential feed type pipe cutting machine, the differential feed type pipeline cutting machine structure comprises a differential feed type module, a differential generation module and a clamping module, and the differential feed type module comprises a main body; the first differential assembly is rotationally arranged on the main body; the second differential assembly is arranged on the first differential assembly; the linkage cutter feeding assembly is connected with the first differential assembly and the second differential assembly, and a cutting piece is arranged on the linkage cutter feeding assembly; the differential generation module is in driving connection with the first differential assembly and the second differential assembly and comprises a control part, and the control part is connected with any one of the first differential assembly and the second differential assembly; through the cooperation of the differential generating module and the control part, the first differential assembly and the second differential assembly rotate in a differential mode, and the differential feeding action or the differential retracting action is achieved. Equipment is more compact, full-automatic precise cutting can be achieved, and the equipment has extremely high operation reliability due to the adoption of a simple mechanical structure.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe cutting machines, and in particular to a differential-feed pipe cutting machine structure and a differential-feed pipe cutting machine. Background Art

[0002] With the advancement of technology, production equipment in various industries has undergone various improvements. To meet increasing production demands, a wide range of advanced production equipment has been developed. In the production of metal and plastic pipes, in-line pipe cutting machines are commonly used. Currently, pipe cutting machines feature a variety of cutting mechanisms: a cylinder-driven cam feed; a hydraulic feed mechanism installed in a turntable; or an electric feed mechanism with a motor or servo motor installed in the turntable. These pipe cutting machines are complex, space-consuming, and offer poor cutting accuracy. Many lack fully automatic adjustment, and both hydraulic and electric mechanisms utilize conductive rings, resulting in poor operational reliability. Summary of the Invention

[0003] Therefore, the embodiment of the present invention provides a differential-feed pipe cutting machine structure and a differential-feed pipe cutting machine, which makes the overall pipe cutting machine structure simpler and more compact, operates reliably, can achieve fully automatic cutting, and has higher efficiency and precision.

[0004] In order to solve the above problems, the present invention provides a differential feed type pipe cutting machine structure, which includes: a differential feed type module, a differential generation module and a clamping module. The differential feed type module includes: a main body; a first differential assembly, the first differential assembly is rotatably arranged on the main body; a second differential assembly, the second differential assembly is rotatably arranged on the side of the first differential assembly away from the main body; a linkage feed assembly, the linkage feed assembly is connected to the first differential assembly and the second differential assembly, and a cutting piece is provided on the linkage feed assembly; the differential generation module includes, the differential generation module drives the connection between the first differential assembly and the second differential assembly, and the differential generation module includes a control unit, the control unit drives the connection between any one of the first differential assembly and the second differential assembly; wherein, through the cooperation of the differential generation module and the control unit, the first differential assembly and the second differential assembly are differentially rotated, driving the linkage feed assembly to realize differential feed action or retract action.

[0005] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting a clamping module on the main body, the workpiece to be processed can be better clamped to facilitate subsequent feed cutting, and at the same time, the first differential assembly and the second differential assembly are set in cooperation with the differential generation module and the control unit, so that the first differential assembly and the second differential assembly rotate differentially, thereby driving the linked feed assembly to operate, so that the cutting piece set on the linked feed assembly can realize differential feed or differential retraction. Through this setting, the cutting rate of the cutting piece is more stable and the cutting accuracy is higher. At the same time, by setting the cooperation between the above-mentioned components, the volume of the cutting equipment is smaller than that of the traditional cutting equipment, so that the operation of the equipment is simpler. At the same time, the mechanical connection between the components has a lower failure rate than the current signal connection or electronic connection, which can better ensure the normal operation of the equipment, and the service life of the equipment is longer, and the corresponding cost is lower.

[0006] In one example of the present invention, the rotation speed of the first differential assembly is defined as V1, and the rotation direction is the first direction; the rotation speed of the second differential assembly is defined as V2, and the rotation direction is the second direction; wherein, V1 is greater than V2, when the first direction and the second direction are the same, the linkage feed assembly drives the cutting member to achieve rapid feed or feed; and / or V1 is less than V2, when the first direction and the second direction are the same, the linkage feed assembly drives the cutting member to achieve rapid retraction or retraction; wherein, V1 and V2 are controlled by the control unit to achieve differential speed.

[0007] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting a control unit to control the rotational differential of the first differential assembly and the second differential assembly, thereby realizing differential feed and retract, it not only has a simple structure and simple connection, but also the mechanical connection method makes the failure rate lower and the structure volume smaller, thereby effectively reducing maintenance costs while making cutting more convenient and quick, and at the same time, the accuracy is higher and the practicality is stronger.

[0008] In one example of the present invention, the differential generation module further includes: an input portion; a first output portion, the first output portion being connected to the input portion and drivingly connected to the first differential assembly; a second output portion being connected to the input portion and drivingly connected to the second differential assembly; and a control portion drivingly connected to either the first output portion or the second output portion.

[0009] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting the input part to connect the first output part and the second output part, the output speed of the first output part and the second output part is made the same, so that the initial speed of the connected first differential assembly and the second differential assembly is made the same, and then by setting the control part on either of the two, one of the two can be accelerated or decelerated through the control part, thereby realizing the differential between the two, ensuring the stable feed and retraction of the cutting piece, and improving the cutting accuracy, thereby making the equipment more practical.

[0010] In one embodiment of the present invention, the linkage feed assembly includes: a first linkage member, the first linkage member is connected to the first differential assembly, and the first differential assembly drives the first linkage member to move when it rotates; a second linkage member, the second linkage member is connected to the first linkage member and the second differential assembly, and the second linkage member is provided with a cutting member.

[0011] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting two linkage parts to connect the first differential assembly and the second differential assembly respectively, and setting the two linkage parts to be connected to each other, when the first differential assembly and the second differential assembly rotate differentially, the two linkage parts can realize stable advance and retraction of the cutting piece, thereby making the cutting more stable and precise. At the same time, the linkage of the mechanical structure makes the overall failure rate lower, the service life of the equipment longer, and the cost lower.

[0012] In one example of the present invention, the first differential assembly also includes: a first rotating member, the first rotating member is rotatably arranged on the main body, and the first rotating member is connected to the first output part; at least one first matching member, at least one first matching member is arranged on the first rotating member, and at least one first matching member is used to cooperate with the first linkage member, so that when the first rotating member rotates, it drives the first linkage member to move.

[0013] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting a first rotating part to connect the main body, and setting at least one first matching part to cooperate with the first linkage part, the installation position of the first linkage part is made more diversified, and the position selected during cutting is made more diversified, which can better cut the workpiece, thereby making the cutting efficiency higher. At the same time, the simple setting of the linkage structure makes the failure rate of the structure lower, ensures the stable operation of the structure, thereby making the equipment have a longer service life and lower cost.

[0014] In one embodiment of the present invention, the second differential assembly also includes: a second rotating member, the second rotating member is rotatably arranged on the side of the main body close to the first rotating member, and the second rotating member is connected to the second output part; at least one second matching member, at least one second matching member is arranged on the second rotating member, and at least one second matching member is used to connect the second linkage member, so that when the second rotating member rotates, it drives the second linkage member to move, and then drives the cutting member to move.

[0015] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting the second rotating member close to the first rotating member, the structural volume of the overall device is smaller and more compact, and at the same time, at least one second matching member is set to connect the second linkage member, so that the second linkage member can be linked with the second rotating member, thereby driving the cutting member to move. The mechanical linkage method makes the structure simpler and the structural failure rate is lower, thereby ensuring the normal operation of the equipment and ensuring more stability during cutting.

[0016] In one example of the present invention, the clamping module also includes: a first fixing portion, the first fixing portion is connected to the main body; a plurality of rotating cam portions, the plurality of rotating cam portions are circumferentially arranged on the first fixing portion; a rotating wheel, the rotating wheel is provided with a plurality of sliding grooves, the plurality of sliding grooves are arranged corresponding to the plurality of rotating cam portions, and the plurality of rotating cam portions at least partially pass through the plurality of sliding grooves; wherein the plurality of rotating cam portions are driven by the rotating wheel to move toward the center position of the first fixing portion to fix the workpiece to be processed.

[0017] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by arranging multiple rotating cam parts circumferentially on the first fixed part, more pipe diameters can be selected when processing the workpiece, thereby having higher compatibility, improving the processing pipe diameter range of the equipment, and making the equipment more practical.

[0018] In one embodiment of the present invention, the clamping module is detachably mounted on the main body.

[0019] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting the clamping module to be detachable, the clamping module can be replaced and can be disassembled for separate maintenance and repair, thereby improving the practicality of the equipment.

[0020] The present invention further provides a differential-speed blade-feed pipe cutting machine, which includes any of the differential-speed blade-feed pipe cutting machine structures described above.

[0021] The differential-speed feed pipe cutting machine includes any of the above-mentioned differential-speed feed pipe cutting machine structures, and therefore has the same technical effects, which will not be described in detail here.

[0022] After adopting the technical solution of the present invention, the following technical effects can be achieved: (1) By setting a clamping module on the main body, the workpiece to be processed can be better clamped to facilitate subsequent feed cutting. At the same time, the first differential assembly and the second differential assembly are set to cooperate with the differential generation module and the control unit, so that the first differential assembly and the second differential assembly can rotate at a differential speed, thereby driving the linkage feed assembly to operate, so that the cutting piece set on the linkage feed assembly can achieve differential feed or differential retraction. Through this setting, the cutting rate of the cutting piece is more stable and the cutting accuracy is higher. At the same time, by setting the cooperation between the above components, the volume of the cutting device is smaller than that of the traditional cutting device, so that the operation of the device is simpler. At the same time, the mechanical connection between the components has a lower failure rate than the current signal connection or electronic connection, so that the normal operation of the device can be better guaranteed, and the service life of the device is longer, and the corresponding cost is lower; (2) By setting a control unit to control the rotational differential of the first differential assembly and the second differential assembly, and then realize differential feed and retract, not only the structure is simple and the connection is simple, but also the mechanical connection method makes the failure rate lower and the structure volume smaller, thereby effectively reducing the maintenance cost, making cutting more convenient and quick, and at the same time, the accuracy is higher and the practicality is stronger; (3) By setting an input part to connect the first output part and the second output part, the output speeds of the first output part and the second output part are made the same, so that the initial speeds of the connected first differential assembly and the second differential assembly are made the same, and then by setting a control part on either of the two, the control part can be used to reduce the speed of one of the two, thereby achieving a differential speed between the two, ensuring the stable feed and retraction of the cutting piece, and improving the cutting accuracy, thereby making the equipment more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts. Figure 1 One of the structural schematic diagrams of a differential-feed pipe cutting machine structure provided by an embodiment of the present invention; Figure 2 The second structural diagram of a differential-feed pipe cutting machine structure provided by an embodiment of the present invention; Figure 3 This is a partial structural diagram of a differential-feed pipe cutting machine according to an embodiment of the present invention; Figure 4 A second partial structural diagram of a differential-feed pipe cutting machine according to an embodiment of the present invention; Figure 5 A third partial structural diagram of a differential-feed pipe cutting machine according to an embodiment of the present invention; Figure 6 A schematic structural diagram of another linkage feed assembly provided in a second embodiment of the present invention; Figure 7 A schematic structural diagram of another differential speed generation module provided in the third embodiment of the present invention; Figure 8 A schematic diagram of the partial structure of another differential-feed pipe cutting machine structure provided by the fourth embodiment of the present invention; Figure 9 A schematic diagram of the partial structure of another differential-feed pipe cutting machine provided in a fifth embodiment of the present invention; Figure 10 A schematic diagram of the partial structure of another differential-feed pipe cutting machine provided in the sixth embodiment of the present invention.

[0024] Description of reference numerals: 100. Structure of differential-feed pipe cutting machine; 110. Main body; 120. Clamping module; 121. First fixing part; 122. Rotating cam part; 123. Rotating wheel; 124. Sliding groove; 130. First differential assembly; 131. First rotating member; 132. First matching member; 140. Second differential assembly; 141. Second rotating member; 142. Second matching member; 150. Differential generating module; 151. Control part; 152. First output part; 153. Second output part; 160. Linkage feed assembly; 161. First linkage member; 162. Second linkage member; 170. Cutting member; 180. Speed control module; 181. Moving part; 190. Arc-shaped linkage groove; 200. Screw part. DETAILED DESCRIPTION

[0025] To make the above-mentioned objectives, features, and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0026] [First embodiment] See also Figure 1-Figure 5The present invention provides a differential feed pipe cutting machine structure 100, which includes: a differential feed module, a differential generation module 150 and a clamping module 120. The differential feed module includes: a main body 110; a first differential assembly 130, which is rotatably disposed on the main body 110; a second differential assembly 140, which is rotatably disposed on a side of the first differential assembly 130 away from the main body 110; and a linkage feed assembly 160, which connects the first differential assembly 130 and the second differential assembly 140. , and a cutting piece 170 is provided on the linked feed assembly 160; the differential generation module 150 includes, the differential generation module 150 drives and connects the first differential assembly 130 and the second differential assembly 140, and the differential generation module 150 includes a control unit 151, and the control unit 151 drives and connects any one of the first differential assembly 130 and the second differential assembly 140; wherein, through the cooperation of the differential generation module 150 and the control unit 151, the first differential assembly 130 and the second differential assembly 140 rotate differentially, driving the linked feed assembly 160 to realize differential feed action or retract action.

[0027] Specifically, when the machine is used, the outer diameter of the pipe to be processed is first determined, and the differential speed generation module 150 is pre-programmed with parameters such as stroke control and speed. This program is manually adjusted. Once the selection is complete, the pipe is placed into the clamping module 120, and an external switch controls the multiple rotating cams of the clamping module 120 to retract toward the center of the circle until the pipe is secured.

[0028] Furthermore, the control differential speed generating module 150 is activated. The differential speed generating module 150 can be a servo motor assembly, namely, the input portion is a main servo motor, and the two output portions are output shafts coaxially connected by gears. A second servo motor, namely the control portion 151, is correspondingly disposed on one of the output shafts. The rotation direction of the second servo motor can be controlled to be opposite to or the same as the rotation direction of the main servo motor, thereby achieving different speed control of the two output portions. The connection between the first output portion 152 and the second output portion 153 and the first rotating member 131 and the second rotating member 141 can be a gear connection, a synchronous belt connection, a sprocket chain connection, or a meshing transmission connection, etc.

[0029] Furthermore, when the differential speed generating module 150 is activated, the control unit 151 is activated simultaneously, thereby driving the first rotating member 131 and the second rotating member 141 to rotate synchronously. However, due to the presence of the control unit 151, there is a difference in the rotational speeds of the first rotating member and the second rotating member, thereby achieving relative differential rotation. Specifically, when the control unit 151 is disposed on the first differential assembly 130, when the first linkage member 161 is driven to rotate by the first rotating member 131, the second linkage member 162 is also synchronously driven to move by the second rotating member 141. Due to the rotation of the control unit 151, the rotation speed of the first rotating member 131 is faster than that of the second rotating member 141. However, since the first linkage member 161 and the second linkage member 162 are interconnected, the second linkage member 162 is pulled by the first linkage member 161, thereby causing the cutting member 170 on the second linkage member 162 to advance. By controlling the control unit 151 to rotate in the opposite direction, the rotation speed of the first rotating member 131 can be made lower than that of the second rotating member 141, thus achieving a retraction operation.

[0030] For example, when the control unit 151, i.e., the second servo motor, is prohibited from moving, the output speeds of the first output unit 152 and the second output unit 153 are fixed, and both speeds are assumed to be V (RPM). When the control unit 151 is running in the forward direction, the speed is assumed to be Vk (RPM). At this time, the speed of the first output unit 152 controlled by the control unit 151 becomes V+VK (RPM), while the output speed of the second output unit 153 remains V (RPM). At the same time, the outputs of the first output unit 152 and the second output unit 153 correspond to the first rotating member 131 and the second rotating member 141. The same principle applies when the control unit 151 is running in the reverse direction. By controlling the speed and position of the control unit 151, the rotation speeds of the first rotating member 131 and the second rotating member 141 are adjusted, thereby achieving differential operation, thereby achieving fully automatic precision cutting. At the same time, due to the simple mechanical connection structure, the equipment has a lower failure rate and higher operational reliability.

[0031] Preferably, the structure of the differential generating module 150, the first differential assembly 130 and the second differential assembly 140 can also adopt two motors and perform feeding by electronic control. Specifically, an electronic cam method is adopted, but a differential control method is also adopted to realize differential rotation between the first differential assembly 130 and the second differential assembly 140 through the control of the two motors.

[0032] Preferably, the number of differential assemblies can be adjusted according to actual conditions, and can be three, four, or more. The same applies to the differential generation module 150 .

[0033] Preferably, a clamping module 120 is provided on the main body 110 so that the workpiece to be processed can be better clamped for subsequent feed cutting. At the same time, the first differential assembly 130 and the second differential assembly 140 are provided in cooperation with the differential generation module 150 and the control unit 151, so that the first differential assembly 130 and the second differential assembly 140 rotate differentially, thereby driving the linked feed assembly 160 to operate, so that the cutting member 170 provided on the linked feed assembly 160 can achieve differential feed or differential retraction. Through this arrangement, the cutting rate of the cutting member 170 is made more stable, and the cutting accuracy is made higher. At the same time, by arranging the cooperation between the above-mentioned components, the volume of the cutting device is smaller than that of the traditional cutting device, thereby making the operation of the device simpler. At the same time, the mechanical connection adopted between the components has a lower failure rate than the current signal connection or electronic connection, thereby better ensuring the normal operation of the equipment, and the service life of the equipment is longer, and the corresponding cost is lower.

[0034] Specifically, the rotation speed of the first differential assembly 130 is defined as V1, and the rotation direction is the first direction; the rotation speed of the second differential assembly 140 is defined as V2, and the rotation direction is the second direction; wherein, V1 is greater than V2, when the first direction and the second direction are the same, the linkage feed assembly 160 drives the cutting member 170 to achieve rapid feed or feed; and / or V1 is less than V2, when the first direction and the second direction are the same, the linkage feed assembly 160 drives the cutting member 170 to achieve rapid retraction or retraction; wherein, V1 and V2 are controlled by the control unit 151 to achieve differential speed.

[0035] Specifically, V1 and V2 are adaptive parameters that can be adjusted according to actual conditions. For example, the side where the gear can be seen is the front side, that is, from the front clockwise direction, when the directions are the same and V1 is greater than V2, when rotating clockwise, it is feed, otherwise it is counterclockwise, it is retraction. When the directions are opposite, and the first direction is clockwise and the second direction is counterclockwise, it is feed, otherwise it is retraction. When the directions are the same and V1 is less than V2, when rotating clockwise, it is retraction, otherwise it is counterclockwise, it is feed. When the directions are opposite, and the first direction is clockwise and the second direction is counterclockwise, it is feed, otherwise it is retraction.

[0036] Preferably, a control unit 151 is provided to control the rotational differential of the first differential assembly 130 and the second differential assembly 140, thereby realizing differential feed and retract. This not only has a simple structure and simple connection, but also the mechanical connection method makes the failure rate lower and the structure volume smaller, thereby effectively reducing maintenance costs while making cutting more convenient and quick, and at the same time, the accuracy is higher and the practicality is stronger.

[0037] Specifically, the differential generation module 150 also includes: an input part; a first output part 152, the first output part 152 is connected to the input part, and the first output part 152 is driven to connect to the first differential assembly 130; a second output part 153, the second output part 153 is connected to the input part, and the second output part 153 is driven to connect to the second differential assembly 140; and a control part 151 is driven to connect to any one of the first output part 152 and the second output part 153.

[0038] Preferably, an input portion is provided to connect the first output portion 152 and the second output portion 153, so that the output rotational speeds of the first output portion 152 and the second output portion 153 are the same, thereby making the initial rotational speeds of the connected first differential assembly 130 and the second differential assembly 140 the same, and then a control portion 151 is provided on either of the two, so that one of the two can be accelerated or decelerated through the control portion 151, thereby realizing the differential between the two, ensuring the stable feed and retraction of the cutting piece 170, and improving the cutting accuracy, thereby making the equipment more practical.

[0039] Specifically, the linked feed assembly 160 includes: a first linkage member 161, the first linkage member 161 is connected to the first differential assembly 130, and when the first differential assembly 130 rotates, it drives the first linkage member 161 to move; a second linkage member 162, the second linkage member 162 is connected to the first linkage member 161 and the second differential assembly 140, and the second linkage member 162 is provided with a cutting member 170.

[0040] Preferably, two linkage parts are provided to respectively connect the first differential assembly 130 and the second differential assembly 140, and the two linkage parts are connected to each other, so that when the first differential assembly 130 and the second differential assembly 140 rotate differentially, the two linkage parts can realize stable advance and retraction of the cutting member 170, thereby making the cutting more stable and precise. At the same time, the linkage of the mechanical structure makes the overall failure rate lower, the service life of the equipment longer, and the cost lower.

[0041] Specifically, the first differential assembly 130 also includes: a first rotating member 131, the first rotating member 131 is rotatably arranged on the main body 110, and the first rotating member 131 is connected to the first output part 152; at least one first matching member 132, at least one first matching member 132 is arranged on the first rotating member 131, and at least one first matching member 132 is used to cooperate with the first linkage member 161, so that when the first rotating member 131 rotates, it drives the first linkage member 161 to move.

[0042] Preferably, by setting a first rotating member 131 to connect the main body 110, and setting at least one first matching member 132 to match the first linkage member 161, the installation position of the first linkage member 161 is made more diversified, and the position selected during cutting is made more diversified, so that the workpiece can be better cut, thereby making the cutting efficiency higher. At the same time, the simple setting of the linkage structure makes the failure rate of the structure lower, ensures the stable operation of the structure, and thus makes the service life of the equipment longer and the cost lower.

[0043] Specifically, the second differential assembly 140 also includes: a second rotating member 141, which is rotatably arranged on the side of the main body 110 close to the first rotating member 131, and the second rotating member 141 is connected to the second output part 153; at least one second matching member 142, at least one second matching member 142 is arranged on the second rotating member 141, and at least one second matching member 142 is used to connect the second linkage member 162, so that when the second rotating member 141 rotates, it drives the second linkage member 162 to move, and then drives the cutting member 170 to move.

[0044] Preferably, by setting the second rotating member 141 close to the first rotating member 131, the structural volume of the overall device is made smaller and more compact. At the same time, at least one second matching member 142 is set to connect the second linkage member 162, so that the second linkage member 162 can be linked with the second rotating member 141, thereby driving the cutting member 170 to move. The mechanical linkage makes the structure simpler and the structural failure rate is lower, thereby ensuring the normal operation of the equipment and ensuring more stability during cutting.

[0045] Specifically, the clamping module 120 also includes: a first fixed part 121, the first fixed part 121 is connected to the main body 110; a plurality of rotating cam parts 122, the plurality of rotating cam parts 122 are circumferentially arranged on the first fixed part 121; a rotating wheel 123, the rotating wheel 123 is provided with a plurality of sliding grooves 124, the plurality of sliding grooves 124 are arranged corresponding to the plurality of rotating cam parts 122, and the plurality of rotating cam parts 122 at least partially pass through the plurality of sliding grooves 124; wherein, the plurality of rotating cam parts 122 are driven by the rotating wheel 123 to move toward the center position of the first fixed part 121 to fix the workpiece to be processed.

[0046] Specifically, multiple rotating cams are fixed on the first fixing part 121 by bolts, and each rotating cam is provided with a connecting shaft. The two ends of each connecting shaft are connected to two rotating cams, and each connecting shaft passes through the sliding groove 124 provided on the rotating wheel 123. The rotating wheel 123 is rotated by an external pull rod or a motor, thereby driving the connecting shaft to rotate, and then driving the rotating cam to rotate, so that the rotating cam is rotated and fed toward the center. At the same time, the pressing pipes arranged near the center of the two rotating cams can be close to the center, so as to fix the pipe to be cut.

[0047] Preferably, by providing multiple rotating cam portions 122 circumferentially on the first fixing portion 121, more pipe diameters can be selected when processing the workpiece, thereby having higher compatibility, increasing the processing pipe diameter range of the equipment, and making the equipment more practical.

[0048] Specifically, the clamping module 120 is detachably disposed on the main body 110 .

[0049] Preferably, the clamping module 120 is detachably provided so that the clamping module 120 can be replaced and can be disassembled for separate maintenance and repair, thereby improving the practicality of the equipment.

[0050] The present invention further provides a differential-speed blade-feed pipe cutting machine, which includes any of the differential-speed blade-feed pipe cutting machine structures 100 described above.

[0051] The differential-speed feed pipe cutting machine includes any of the differential-speed feed pipe cutting machine structures 100 described above, and therefore has the same technical effects, which will not be described in detail here.

[0052] [Second embodiment] See also Figure 6 The present invention also provides another implementation method of the linked feed component 160 and the differential generation module 150. Specifically, after the differential generation module 150 is started, the power motor is started, and the speed is output to the first differential component 130 and the second differential component 140. By installing a reduction motor at the output connection between the first differential component 130 and the differential generation module 150, the first differential component 130 and the second differential component 140 can be controlled to rotate differentially. The reduction motor is specifically installed on the output gear shaft of the servo motor for outputting the speed to the first differential component 130, so that there is a speed difference between the two differential components, which makes the cutting method more stable and accurate, and the feed does not need to be pushed. The differential feed is achieved through a simple linkage structure, which ensures stability while reducing structure and cost.

[0053] [Third embodiment] See also Figure 7The present invention also provides another implementation of the differential generation module 150, specifically, starting the main motor of the input part, wherein the connection method between the main motor and the first differential assembly 130, the second differential assembly 140 and the speed control module 180 can be a synchronous belt or chain, etc., taking a synchronous belt as an example. Specifically, the second differential assembly 140 is directly connected to the output part of the main motor through a synchronous belt, and then through a synchronous belt, first connected to the output part of the main motor, and then connected in sequence to the gear set on the side of the moving part 181 close to the main motor, and then connected to a gear set on the moving part 181, and then connected to the gear set on the side of the moving part 181 away from the main motor, and then after going around the first differential assembly 130 once, it is connected to another gear set on the side of the moving part 181 away from the main motor, and then connected to another gear on the moving part 181, and then connected to another gear close to the main motor before returning to the output part of the main motor. Through the above connection, the movement of the moving portion 181 can change the thread of the single-sided belt, thereby changing the speed of the output portion to the first differential assembly 130, thereby forming a differential speed with the second differential assembly 140. The movement of the moving portion 181 can be achieved through the cooperation of a motor and a screw.

[0054] [Fourth embodiment] See also Figure 8 The present invention also provides another method for realizing linkage between the first differential assembly 130, the second differential assembly 140, and the linked feed assembly 160, in which feed is realized through a gear connection. Specifically, the first differential assembly 130 is provided with four gears, which are meshed with the second differential assembly 140. At the same time, it is provided with at least one set of reduction gears to connect to the linked feed assembly 160. The linked feed assembly 160 is provided with racks on both sides, which mesh with the gears provided on the first differential assembly 160 for linkage.

[0055] [Fifth embodiment] See also Figure 9 The present invention also provides another method for realizing linkage between the first differential assembly 130, the second differential assembly 140, and the linked feed assembly 160, which realizes feed through a cam connection. Specifically, the linked feed assembly 160 is provided with an arcuate linkage groove 190. Then, a protruding rod provided on the first differential assembly 130 penetrates the groove on the second differential assembly 140, and at least partially engages with the arcuate linkage groove 190. Then, when the first differential assembly 130 and the second differential assembly 140 rotate at differential speeds, the linked feed assembly 140 is driven to perform linear feed or retraction.

[0056] [Sixth embodiment] See also Figure 10The present invention also provides another method for realizing linkage between the first differential assembly 130, the second differential assembly 140, and the linked feed assembly 160, wherein the feed or retraction is performed by a screw connection. Specifically, a gear portion is connected to the first differential assembly 130, which is connected to the screw portion 200 provided on the linked feed assembly 160. The gear portion is also connected to the second differential assembly 140. Therefore, when the first differential assembly 130 and the second differential assembly 140 rotate differentially, the gear portion drives the screw portion 200 to perform differential linear feed or retraction.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A differential feed pipe cutting machine structure, characterized in that: The differential-speed feed type pipe cutting machine structure comprises: a differential-speed feed type module, a differential speed generating module (150) and a clamping module (120), wherein the differential-speed feed type module comprises: Subject (110); a first differential assembly (130), the first differential assembly (130) being rotatably mounted on the main body (110); a second differential assembly (140), the second differential assembly (140) being rotatably disposed on a side of the first differential assembly (130) away from the main body (110); A linked feed assembly (160), the linked feed assembly (160) being connected to the first differential assembly (130) and the second differential assembly (140), and a cutting member (170) being provided on the linked feed assembly (160); The differential speed generating module (150) includes: the differential speed generating module (150) drivingly connects the first differential assembly (130) and the second differential assembly (140), and the differential speed generating module (150) includes a control unit (151), and the control unit (151) drivingly connects either the first differential assembly (130) or the second differential assembly (140); Wherein, through the cooperation of the differential speed generating module (150) and the control unit (151), the first differential speed assembly (130) and the second differential speed assembly (140) are caused to rotate at differential speeds, thereby driving the linked feed assembly (160) to realize a differential feed action or a retract action.

2. The differential feed pipe cutting machine structure according to claim 1, characterized in that: The first differential assembly (130) is defined as having a rotational speed of V1 and a rotational direction of a first direction; the second differential assembly (140) is defined as having a rotational speed of V2 and a rotational direction of a second direction; Wherein, the V1 is greater than the V2, and when the first direction and the second direction are the same, the linked feed assembly (160) drives the cutting member (170) to achieve fast feed or feed; and / or The V1 is smaller than the V2, and when the first direction and the second direction are the same, the linked feed assembly (160) drives the cutting member (170) to achieve rapid retraction or retraction; The V1 and the V2 are controlled by the control unit (151) and the differential speed generating module (150) to achieve differential speed.

3. The differential feed pipe cutting machine structure according to claim 1, characterized in that: The differential speed generating module (150) further includes: Input unit; a first output portion (152), the first output portion (152) being connected to the input portion, and the first output portion (152) being drivingly connected to the first differential assembly (130); a second output portion (153), the second output portion (153) being connected to the input portion, and the second output portion (153) being drivingly connected to the second differential assembly (140); The control unit (151) drives and connects either the first output unit (152) or the second output unit (153).

4. The differential feed pipe cutting machine structure according to claim 3, characterized in that: The linked feed assembly (160) comprises: A first linkage member (161), the first linkage member (161) being connected to the first differential assembly (130), and driving the first linkage member (161) to move when the first differential assembly (130) rotates; A second linkage member (162) is provided, wherein the second linkage member (162) connects the first linkage member (161) and the second differential assembly (140), and the second linkage member (162) is provided with the cutting member (170).

5. The differential feed pipe cutting machine structure according to claim 4, characterized in that: The first differential assembly (130) further includes: a first rotating member (131), the first rotating member (131) being rotatably disposed on the main body (110), and the first rotating member (131) being connected to the first output portion (152); At least one first matching member (132), the at least one first matching member (132) is provided on the first rotating member (131), and the at least one first matching member (132) is used to match with the first linkage member (161), so that when the first rotating member (131) rotates, the first linkage member (161) is driven to move.

6. The differential feed pipe cutting machine structure according to claim 5, characterized in that: The second differential assembly (140) further includes: a second rotating member (141), the second rotating member (141) being rotatably disposed on a side of the main body (110) close to the first rotating member (131), and the second rotating member (141) being connected to the second output portion (153); At least one second matching member (142), the at least one second matching member (142) is provided on the second rotating member (141), and the at least one second matching member (142) is used to connect the second linkage member (162), so that when the second rotating member (141) rotates, the second linkage member (162) is driven to move, thereby driving the cutting member (170) to move.

7. The differential feed pipe cutting machine structure according to claim 1, characterized in that: The clamping module (120) further comprises: a first fixing portion (121), the first fixing portion (121) being connected to the main body (110); a plurality of rotating cam portions (122), wherein the plurality of rotating cam portions (122) are circumferentially arranged on the first fixing portion (121); A rotating wheel (123), wherein the rotating wheel (123) is provided with a plurality of sliding grooves (124), the plurality of sliding grooves (124) are provided corresponding to the plurality of rotating cam portions (122), and the plurality of rotating cam portions (122) at least partially pass through the plurality of sliding grooves (124); The plurality of rotating cam portions (122) are driven by the rotating wheel (123) to move toward the center position of the first fixing portion (121) to fix the workpiece to be processed.

8. The differential feed pipe cutting machine structure according to claim 7, characterized in that: The clamping module (120) is detachably arranged on the main body (110).

9. A differential feed pipe cutting machine, characterized in that: The differential-speed feed pipe cutting machine includes the differential-speed feed pipe cutting machine structure according to any one of claims 1 to 8.

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