Workpiece clamping device for pipe processing

Abstract

The invention discloses a workpiece clamping device for pipe fitting processing, and relates to the technical field of workpiece clamping. A workpiece clamping device for pipe fitting processing comprises a bracket mechanism, the bracket mechanism comprises a support plate, and side frames are fixedly connected to the two sides of the lower surface of the support plate, a sliding rod is fixedly connected between the two side frames, two sliding components are slidably connected to the sliding rod, and two clamping plate mechanisms are slidably connected to the sliding rod. The two clamping plate mechanisms are symmetrical, and each clamping plate mechanism comprises a main cover frame in the shape of a cover shell, and the openings of the two main cover frames in the shape of a cover shell are opposite to each other, and a through hole is penetrated through the middle of the opposite surfaces of the two main cover frames, and a card slot is penetrated through the two sides of the opening of each main cover frame, and the opposite surfaces of the two main cover frames are fixedly connected to a second spring, and the end of the second spring away from the main cover frame is fixedly connected to a cover shell-shaped auxiliary cover frame, and the opening of the cover shell-shaped auxiliary cover frame faces the main cover frame. A workpiece clamping device for pipe fitting processing saves manpower to a large extent.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece clamping, in particular to a workpiece clamping device for pipe processing. Background Art

[0002] Pipe fittings are a general term for components in pipeline systems that perform functions such as connection, control, direction change, flow diversion, sealing, and support.

[0003] During the pipe processing, a clamping device is required to fix the pipe.

[0004] The patent with the publication (announcement) number CN117381679A discloses a pipe processing clamping device, including four table legs, a table board, a support plate, a fixing assembly, a base, a lower clamp and an upper clamp, the four table legs are fixedly connected to the table board and are located below the table board, the support plate is fixedly connected to the table board and is located above the table board, the fixing assembly includes a clamping member and a driving member, the clamping member is rotatably connected to the support plate and is located inside the support plate, the driving member is rotatably connected to the table board and is located inside the table board, the base is fixedly connected to the table board and is located above the table board, the lower clamp is fixedly connected to the base The upper clamp is fixedly connected and located above the base, the upper clamp is fixedly connected to the clamping piece and is located above the lower clamp. When processing and clamping the pipe fitting, the pipe fitting is first placed on the lower clamp above the base, the driving piece runs, fixes both sides of the pipe fitting, and makes the pipe fitting in the middle position of the clamp, the clamping piece drives the upper clamp to move downward, and the upper clamp completes the clamping operation of the pipe fitting. This method can effectively solve the problem that when clamping the pipe fitting, the operator needs to hold the pipe fitting and place it between the two arc-shaped clamping plates. The operator can release the pipe fitting only after the clamping is completed, which reduces the labor intensity of the operator and improves the processing efficiency.

[0005] The above scheme fixes both sides of the pipe fitting so that the operator does not need to hold the pipe fitting with hands during the clamping process. However, the operator is still required to place the pipe fitting on the lower clamp above the base. Especially for large pipe fittings, it is very laborious to move the pipe fitting. Although it can reduce the labor intensity of the operator, the degree of reduction is not enough. Therefore, a workpiece clamping device for pipe processing is urgently needed to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a workpiece clamping device for pipe processing to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a workpiece clamping device for pipe processing, comprising a bracket mechanism, the bracket mechanism comprising a support plate, two sides of the lower surface of the support plate are respectively fixedly connected to side frames, a sliding rod is fixedly connected between the two side frames, and two sliding assemblies are slidably connected to the sliding rod, and the two sliding assemblies are symmetrical;

[0008] The slide bar is slidably connected to two clamping plate mechanisms, and the two clamping plate mechanisms are symmetrical;

[0009] Each of the clamping plate mechanisms comprises a main cover frame in the shape of a cover shell, the openings of the two main cover frames are opposite to each other, a through hole is formed through the middle of the opposing surfaces of the two main cover frames, and both sides of the opening of each main cover frame are formed through slots;

[0010] The surfaces of the two main cover frames facing away from each other are fixedly connected with a second spring, and one end of the second spring away from the main cover frame is fixedly connected with a cover-shell-shaped auxiliary cover frame, the opening of the cover-shell-shaped auxiliary cover frame faces the main cover frame, the auxiliary cover frame is adapted to the opening of the main cover frame, and the middle part of the surface of the auxiliary cover frame facing the main cover frame is fixedly connected with a take-out column adapted to be plugged in with the through hole, and the end of the take-out column away from the auxiliary cover frame is smooth;

[0011] Each of the slots is provided with a buckle assembly for buckling the auxiliary cover frame;

[0012] The slide bar is slidably connected to two pipe clamping mechanisms, and the two pipe clamping mechanisms are symmetrical;

[0013] The two pipe clamp mechanisms are located between the two clamp plate mechanisms, and the clamp plate mechanism and the pipe clamp mechanism are connected via a sliding assembly;

[0014] An external frame mechanism is arranged above the support mechanism.

[0015] As a preferred technical solution of the present invention, a plate hole is provided through the middle of the surface of the support plate;

[0016] An insertion hole is formed through the upper surface of each side frame.

[0017] Each of the sliding assemblies comprises a slider, which is slidably sleeved on a sliding rod, and a connecting rod is fixedly connected to the lower side of the slider;

[0018] A small column is fixedly connected to the upper side of the slider, and a first electric telescopic column which can be adapted and plugged with the socket is fixedly connected to the upper side of the small column.

[0019] As a preferred technical solution of the present invention, the upper side of the main cover frame corresponds to a fixed connecting rod;

[0020] The edges of the two opposite ports of the through holes are rounded;

[0021] The second spring is wound around the outside of the column.

[0022] Each of the buckle assemblies comprises an outer plate, the outer plate cover is connected to the outside of the card slot and is adapted to the outer surface of the main cover frame, the two ends of the outer plate close to the main cover frame are respectively fixedly connected to the first spring, the ends of the two first springs away from the outer plate are fixedly connected to the main cover frame, the middle part of the outer plate close to the main cover frame is fixedly connected to the card plate, the end of the card plate away from the outer plate is adapted to the plug-in card slot and extends into the main cover frame;

[0023] One end of the clamping plate extending into the main cover frame is provided with an oblique opening facing the auxiliary cover frame.

[0024] As a preferred technical solution of the present invention, each of the pipe clamp mechanisms includes a sliding frame, and a connection hole is formed through the upper end of the side wall of the sliding frame close to the clamp mechanism, and the output end of the first electric telescopic column is fixedly plugged into the connection hole;

[0025] The lower ends of the two side walls of the sliding frame are penetrated by sliding holes adapted to fit the sliding rods;

[0026] Two symmetrical motor assemblies are arranged at the inner upper end of the sliding frame;

[0027] Two centrally symmetrical clamp assemblies are arranged at the inner lower end of the slide frame;

[0028] A strap assembly is commonly installed on the lower sides of the two clamp assemblies;

[0029] A pull rope assembly is installed on each of the clamp assemblies.

[0030] Each of the motor components comprises a first motor, and the opposite sides of the two first motors are fixedly connected to the side wall of the sliding frame, and the output ends of the opposite sides of the two first motors are respectively fixedly connected to the machine column, and the outer side of the machine column is fixedly sleeved with a gear;

[0031] Each of the clamp components includes a ring tube that is movably sleeved with a slide rod, and teeth that mesh with the gear are evenly and evenly fixedly connected to the outer sides of the two ends of the ring tubes that are close to each other, and a clamp arm is fixedly connected to the side of each of the ring tubes, and the two clamp arms are symmetrical, and the ends of the clamp arms that are away from the ring tubes are arc-shaped and bulge outward;

[0032] The strap assembly includes two electric cable winders, a strap is arranged between the two electric cable winders, two ends of the strap are respectively wound inside the electric cable winders, and the two electric cable winders are respectively fixedly mounted on one end of the two clamp arms away from the ring tube;

[0033] Each of the pull rope assemblies includes a winding drum, which is fixedly connected to the outer side of the highest point of the protrusion of the arc section of the clamping arm, and a rotating rod is rotatably inserted inside the winding drum, one end of the rotating rod extends out of the winding drum and is fixedly sleeved with a turning handle, a section of the rotating rod inside the winding drum is wound with a pull rope, and an end of the pull rope away from the rotating rod passes through the winding drum and is fixedly connected to the outer plate.

[0034] The binding strap comprises a wavy binding nylon belt piece, and each wavy bend of the binding nylon belt piece is filled with a binding adhesive strip.

[0035] As a preferred technical solution of the present invention, the external frame mechanism includes an external frame, the outer side of the external frame is fixedly connected to a mounting plate, the lower side of the external frame is slidably inserted with a second electric telescopic column, the lower end of the second electric telescopic column is fixedly connected to a connecting clamp, the connecting clamp is movably connected to a second motor via a rotating shaft, a rotator is installed on the connecting shaft between the connecting clamp and the second motor, and the lower output end of the second motor is adapted to be inserted into a plate hole and fixedly connected to the plate hole.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] (1) A workpiece clamping device for pipe processing. An operator pushes the auxiliary cover frame into the main cover frame and buckles it through a buckle assembly, so that the column is further inserted into the pipe. The device can automatically take the pipe from the stack. The operator only needs to push the auxiliary cover frame into the main cover frame, which can save manpower to a large extent.

[0038] (2) A workpiece clamping device for pipe processing, which has a strap assembly. When the clamp assembly surrounds the pipe, the strap is simultaneously tied to the outside of the pipe, thereby ensuring stable clamping of the pipe and increasing the clamping range of the device for the pipe.

[0039] (3) A workpiece clamping device for pipe processing, which, through the presence of a strap, acts as a cushion between the pipe and the clamp arm, and can well protect the surface of the pipe.

[0040] (4) A workpiece clamping device for pipe processing, which can reduce the wave shape of the nylon strap by pulling the strap, thereby squeezing out the rubber strip of the nylon strap at the wave bend, thereby further increasing the friction between the strap and the pipe and the clamping arm, and improving the stability of the clamping device.

[0041] (5) A workpiece clamping device for pipe processing, wherein the pipe can be advanced into the processing device at various required angles under the clamping of the clamping plate mechanism and the pipe clamp mechanism, thereby improving the flexibility of the clamping device.

[0042] (6) A workpiece clamping device for pipe processing, wherein the relative positions of a clamping plate mechanism and a pipe clamping mechanism are limited by a first electric telescopic column, so that at the initial stage of clamping, after the clamping plate mechanism moves to fit the two ends of the pipe, the pipe clamping mechanism can be immediately positioned to the position required to clamp the pipe, thereby improving the accuracy of the clamping and positioning of the device.

[0043] (7) A workpiece clamping device for pipe processing, which can also adjust the relative positions of the clamping plate mechanism and the pipe clamping mechanism by virtue of the presence of a first electric telescopic column, thereby being able to switch the clamping position of the pipe clamping mechanism for the pipe, adapting to various processing requirements for the pipe, and improving the adjustability of the clamping device.

[0044] (8) A workpiece clamping device for pipe processing, in which the auxiliary cover frame loses the obstruction of the clamping plate and automatically returns to its original position under the action of the second spring. At this time, the column is retracted into the through hole, thereby simultaneously loosening the restrictions on the pipe fitting by the pipe clamp mechanism and the clamping plate mechanism, completing unified material unloading and improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the present invention;

[0046] Figure 2 It is a schematic diagram of the external frame mechanism of the present invention;

[0047] Figure 3 It is a schematic diagram of the main body of the present invention;

[0048] Figure 4 It is a schematic diagram of the support mechanism of the present invention;

[0049] Figure 5 It is a schematic diagram of the clamping mechanism of the present invention;

[0050] Figure 6 It is a schematic diagram of the other side of the clamping mechanism of the present invention;

[0051] Figure 7 It is a schematic diagram of the buckle assembly of the present invention;

[0052] Figure 8 This is a schematic diagram of the clamping state of the clamping mechanism of the present invention;

[0053] Fig. 9 It is a schematic diagram of the pipe clamp mechanism of the present invention;

[0054] Fig.10 It is a schematic diagram of the sliding frame of the present invention;

[0055] Fig.11 It is a schematic diagram of the motor assembly of the present invention;

[0056] Fig.12 It is a schematic diagram of the pull rope assembly of the present invention;

[0057] Fig.13 Schematic diagram of the binding strap of the present invention.

[0058] In the figure: 1, bracket mechanism; 101, support plate; 102, plate hole; 103, side frame; 104, jack; 105, slide bar; 106, slider; 107, connecting rod; 108, small column; 109, first electric telescopic column; 2, clamping plate mechanism; 201, main cover frame; 202, through hole; 203, card slot; 204, outer plate; 205, first spring; 206, card plate; 207, second spring; 208, auxiliary cover frame; 209, take-up column; 3, pipe clamp mechanism; 301, slide frame; 302, connecting hole; 303, sliding hole; 304, first motor; 305, machine column; 306, gear; 307, ring tube; 308, teeth; 309, clamp arm; 310, electric winder; 311, binding belt; 311A, nylon belt; 311B, rubber strip; 312, winding drum; 313, turning rod; 314, turning handle; 315, pull rope; 4, external frame mechanism; 401, external frame; 402, mounting plate; 403, second electric telescopic column; 404, connecting clamp; 405, second motor; 406, rotator. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Example: See Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 A workpiece clamping device for pipe processing includes a support mechanism 1, the support mechanism 1 includes a support plate 101, side frames 103 are fixedly connected to the lower surface of the support plate 101 on both sides, a slide bar 105 is fixedly connected between the two side frames 103, and two slide assemblies are slidably connected to the slide bar 105, and the two slide assemblies are symmetrical;

[0061] Two clamping plate mechanisms 2 are slidably connected to the sliding rod 105, and the two clamping plate mechanisms 2 are symmetrical;

[0062] Each clamping mechanism 2 includes a main cover frame 201 in the shape of a cover shell. The openings of the two main cover frames 201 face each other. A through hole 202 is formed in the middle of the opposing surfaces of the two main cover frames 201. Both sides of the opening of each main cover frame 201 are formed with a slot 203.

[0063] The surfaces of the two main cover frames 201 facing away from each other are fixedly connected with a second spring 207, and one end of the second spring 207 away from the main cover frame 201 is fixedly connected with a cover-shell-shaped auxiliary cover frame 208, the opening of the cover-shell-shaped auxiliary cover frame 208 faces the main cover frame 201, and the auxiliary cover frame 208 is adapted to the opening of the main cover frame 201, and the middle of the surface of the auxiliary cover frame 208 facing the main cover frame 201 is fixedly connected with a take-out column 209 adapted to be plugged in with the through hole 202, and one end of the take-out column 209 away from the auxiliary cover frame 208 is smooth, and initially, the smooth end of the take-out column 209 is flush with the end surface of the main cover frame 201;

[0064] Each of the slots 203 is provided with a buckle assembly for buckling the auxiliary cover frame 208;

[0065] Two tube clamping mechanisms 3 are slidably connected to the slide bar 105, and the two tube clamping mechanisms 3 are symmetrical;

[0066] The two pipe clamp mechanisms 3 are located between the two clamp mechanisms 2, and the clamp mechanisms 2 and the pipe clamp mechanisms 3 are connected via a sliding assembly;

[0067] An outer frame mechanism 4 is arranged above the support mechanism 1 .

[0068] See also Figure 4 A plate hole 102 is formed through the middle of the surface of the support plate 101;

[0069] An insertion hole 104 is formed through the upper surface of each side frame 103 .

[0070] Each sliding assembly includes a slider 106, which is slidably sleeved on a sliding rod 105, and a connecting rod 107 is fixedly connected to the lower side of the slider 106;

[0071] A small column 108 is fixedly connected to the upper side of the slider 106 , and a first electric telescopic column 109 that can be adapted and plugged into the socket 104 is fixedly connected to the upper side of the small column 108 .

[0072] See also Figure 3 , Figure 6 , Figure 7 , Figure 8 , the upper side of the main cover frame 201 corresponds to the fixed connecting rod 107;

[0073] The edges of the two through holes 202 opposite to each other are rounded;

[0074] The second spring 207 is wound around the outside of the extraction column 209 .

[0075] Each buckle assembly includes an outer plate 204, which is covered on the outside of the card slot 203 and adapted to the outer surface of the main cover frame 201, and the two ends of the outer plate 204 close to the main cover frame 201 are respectively fixedly connected with first springs 205, and the ends of the two first springs 205 away from the outer plate 204 are fixedly connected to the main cover frame 201, and the middle part of the outer plate 204 close to the main cover frame 201 is fixedly connected with a card plate 206, and the end of the card plate 206 away from the outer plate 204 is adapted to the card slot 203 and extends into the main cover frame 201;

[0076] One end of the clamping plate 206 extending into the main cover frame 201 is provided with an oblique opening facing the auxiliary cover frame 208 .

[0077] See also Figure 3 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 Each tube clamp mechanism 3 includes a slide frame 301, and a connection hole 302 is formed through the upper end of the side wall of the slide frame 301 close to the clamp mechanism 2, and the output end of the first electric telescopic column 109 is fixedly plugged into the connection hole 302;

[0078] The lower ends of both side walls of the sliding frame 301 are penetrated with sliding holes 303 adapted to be connected to the sliding rod 105;

[0079] Two symmetrical motor assemblies are disposed at the inner upper end of the sliding frame 301;

[0080] Two centrally symmetrical clamp assemblies are disposed at the inner lower end of the slide frame 301;

[0081] A strap assembly is commonly installed on the lower sides of the two clamp assemblies;

[0082] A pull rope assembly is mounted on each clamp assembly.

[0083] Each motor assembly includes a first motor 304, and the opposite sides of the two first motors 304 are fixedly connected to the side wall of the sliding frame 301, and the output ends of the opposite sides of the two first motors 304 are fixedly connected to the machine column 305, and the outer side of the machine column 305 is fixedly sleeved with a gear 306;

[0084] Each clamp assembly includes a ring tube 307 that is movably sleeved with the slide bar 105. The outer sides of the two adjacent ends of the ring tubes 307 are evenly and evenly fixedly connected with teeth 308 that are adapted to mesh with the gear 306. The side of each ring tube 307 is fixedly connected with a clamp arm 309. The two clamp arms 309 are symmetrical, and the ends of the clamp arms 309 that are away from the ring tubes 307 are arc-shaped and bulge outward.

[0085] The strap assembly includes two electric cable winders 310, a strap 311 is arranged between the two electric cable winders 310, two ends of the strap 311 are respectively wound inside the electric cable winders 310, and the two electric cable winders 310 are respectively fixedly mounted on one end of the two clamping arms 309 away from the ring tube 307;

[0086] Each pull rope assembly includes a winding drum 312, which is fixedly connected to the outer side of the highest point of the protrusion of the arc section of the clamping arm 309, and a rotating rod 313 is rotatably inserted inside the winding drum 312. One end of the rotating rod 313 extends out of the winding drum 312 and is fixedly sleeved with a turning handle 314. A pull rope 315 is wound around a section of the rotating rod 313 inside the winding drum 312, and the end of the pull rope 315 away from the rotating rod 313 passes through the winding drum 312 and is fixedly connected to the outer plate 204.

[0087] The binding strap 311 includes a wavy binding strap nylon strip 311A, and each wavy bend of the binding strap nylon strip 311A ​​is filled with a binding strap adhesive strip 311B.

[0088] See also Figure 1 , Figure 2 The external frame mechanism 4 includes an external frame 401, the outer side of the external frame 401 is fixedly connected with a mounting plate 402, the lower side of the external frame 401 is slidably plugged with a second electric telescopic column 403, the lower end of the second electric telescopic column 403 is fixedly connected with a connecting clamp 404, the connecting clamp 404 is movably connected with a second motor 405 through a rotating shaft, a rotator 406 is installed on the connecting shaft between the connecting clamp 404 and the second motor 405, and the lower end output end of the second motor 405 is adapted to be inserted into the plate hole 102 and is fixedly connected to the plate hole 102.

[0089] The working principle of the present invention is as follows:

[0090] Large pipes are generally stacked on the ground. The second electric telescopic column 403 is slid along the outer frame 401 and then extended, so that the bracket mechanism 1 together with the clamping mechanism 2 and the pipe clamping mechanism 3 are close to the pipes on the top of the stack. The two clamping mechanisms 2 are moved to the two ends of the pipes and fit the pipes through the connection between the sliding assembly and the clamping mechanism 2. The operator pushes the auxiliary cover frame 208 into the main cover frame 201 and buckles it through the snap assembly, so that the column 209 is further inserted into the pipe. The device can automatically take the pipes from the stack. The operator only needs to push the auxiliary cover frame 208 into the main cover frame 201, which can save manpower to a great extent.

[0091] After the pipes on the stack are taken by the clamping mechanism 2, the second electric telescopic column 403 is retracted to lift the pipes, and the two motor assemblies are started to mesh the gear 306 with the tooth 308, so that the clamp assemblies on both sides rotate relative to the pipes. First, when the column 209 is inserted into the pipe to take the pipe, the left and right balance of the pipe can be ensured under the action of gravity after the pipe is lifted. Secondly, the clamp assemblies on both sides rotate toward the pipe synchronously, so that the pipe can be clamped from large to small when the pipe is in the right position, and the clamp assemblies on both sides are staggered, thereby expanding the clamping range of the clamp assemblies. At the same time, due to the existence of the strap assembly, when the clamp assembly surrounds the pipe, the strap 311 is synchronously tied to the outside of the pipe, which ensures stable clamping of the pipe and increases the clamping range of the device for the pipe.

[0092] First, the end of the clamp arm 309 of the clamp assembly away from the ring tube 307 is arc-shaped and bulges outward. In the process of the clamp assemblies on both sides rotating and clamping the pipe fittings synchronously, the closing of the clamp arms 309 on both sides will gradually close from the bottom to the top, so that the pipe fittings will eventually be clamped inside the clamp assembly within a suitable size range. As the clamp arms 309 on both sides are closed or even staggered, the strap 311 of the strap assembly connected to the bottom side of the clamp assembly will be tied to the outside of the pipe fitting. The existence of the strap 311 acts as a cushion between the pipe fitting and the clamp arm 309, which can well protect the surface of the pipe fitting.

[0093] Through the structure of the strap 311, after the strap 311 is tied to the outside of the pipe, the electric winders 310 on both sides of the strap 311 are used to electrically contract the strap 311, so that the strap 311 is tightly tied to the outside of the pipe. On the one hand, the pipe is clamped stably in an auxiliary manner. On the other hand, by pulling the strap 311, the wave shape of the strap nylon strip 311A ​​can be reduced, and the strap rubber strip 311B at the wave bend of the strap nylon strip 311A ​​can be squeezed out, thereby further increasing the friction between the strap 311 and the pipe and the clamp arm 309, thereby improving the stability of the device clamping.

[0094] The two ends of the pipe fitting are limited by the clamping mechanism 2, and the pipe fitting is clamped by the tube clamping mechanism 3. Through the setting of the external frame mechanism 4, the support mechanism 1 can be rotated by the second motor 405, and the support mechanism 1 can be flipped by the rotator 406. In this way, the pipe fitting can be advanced into the processing device at various required angles under the clamping of the clamping mechanism 2 and the tube clamping mechanism 3, thereby improving the flexibility of the device clamping.

[0095] The relative positions of the clamping mechanism 2 and the tube clamping mechanism 3 are limited by the first electric telescopic column 109, so that in the initial clamping stage, after the clamping mechanism 2 moves to fit the two ends of the tube, the tube clamping mechanism 3 can be immediately positioned to the position required to clamp the tube, thereby improving the accuracy of the device's clamping positioning.

[0096] The presence of the first electric telescopic column 109 can also adjust the relative positions of the clamping mechanism 2 and the pipe clamping mechanism 3, so that the clamping position of the pipe clamping mechanism 3 for the pipe can be switched to adapt to various processing requirements for the pipe and improve the adjustability of the clamping device.

[0097] After the clamping mechanism 2 has taken the pipe fitting, the length of the pull rope 315 is adjusted to be appropriate by rotating the handle 314. In this way, when the pipe fitting is processed, in the process of the clamp assembly being reversed to loosen the pipe fitting, the clamp arm 309 is further flipped outward by the motor assembly. At this time, the further flipped clamp arm 309 can drive the winding drum 312 of the pull rope assembly so that the pull rope 315 is forced to pull the outer plate 204 of the buckle assembly, thereby causing the clamping plate 206 to retract into the clamping groove 203. At this time, the auxiliary cover frame 208 loses the obstruction of the clamping plate 206 and automatically returns to its original position under the action of the second spring 207. At this time, the taking column 209 shrinks into the through hole 202, thereby synchronously loosening the restrictions on the pipe fitting by the pipe clamp mechanism 3 and the clamping mechanism 2, completing unified material unloading and improving the efficiency of the device.

[0098] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workpiece clamping device for pipe processing, comprising a support mechanism (1), the support mechanism (1) comprising a support plate (101), side frames (103) are fixedly connected to both sides of the lower surface of the support plate (101), and a slide bar (105) is fixedly connected between the two side frames (103), characterized in that: The sliding rod (105) is slidably connected to two sliding assemblies, and the two sliding assemblies are symmetrical; Two clamping plate mechanisms (2) are slidably connected to the sliding rod (105), and the two clamping plate mechanisms (2) are symmetrical; Each of the clamping plate mechanisms (2) comprises a main cover frame (201) in the shape of a cover shell, the openings of the two main cover frames (201) being opposite to each other, a through hole (202) being provided through the middle of the opposing surfaces of the two main cover frames (201), and slots (203) being provided through both sides of the opening of each main cover frame (201); A second spring (207) is fixedly connected to the surfaces facing away from the two main cover frames (201); an end of the second spring (207) away from the main cover frame (201) is fixedly connected to a shell-shaped auxiliary cover frame (208); an opening of the shell-shaped auxiliary cover frame (208) faces the main cover frame (201); the auxiliary cover frame (208) is matched with the opening of the main cover frame (201); a take-out column (209) matched with the through hole (202) is fixedly connected to the middle of the surface of the auxiliary cover frame (208) facing the main cover frame (201); and an end of the take-out column (209) away from the auxiliary cover frame (208) is smooth; A buckle assembly for buckling the auxiliary cover frame (208) is installed on each of the buckle slots (203); Two tube clamping mechanisms (3) are slidably connected to the sliding rod (105), and the two tube clamping mechanisms (3) are symmetrical; The two tube clamp mechanisms (3) are located between the two clamp mechanisms (2), and the clamp mechanisms (2) and the tube clamp mechanisms (3) are connected via a sliding assembly; An external frame mechanism (4) is arranged above the support mechanism (1); A plate hole (102) is provided through the middle of the surface of the support plate (101); A plug hole (104) is provided through the upper side of the surface of each side frame (103); Each of the sliding assemblies comprises a slider (106), the slider (106) being slidably sleeved on the sliding rod (105), and a connecting rod (107) being fixedly connected to the lower side of the slider (106); A small column (108) is fixedly connected to the upper side of the slider (106), and a first electric telescopic column (109) that can be adapted to be plugged into the socket (104) is fixedly connected to the upper side of the small column (108); The upper side of the main cover frame (201) corresponds to a fixed connecting rod (107); The edges of the two opposite ports of the through holes (202) are rounded; The second spring (207) is wound around the outside of the extraction column (209); Each of the buckle components comprises an outer plate (204), the outer plate (204) is connected to the outside of the card slot (203) and is adapted to the outer surface of the main cover frame (201), the two ends of the outer plate (204) close to the main cover frame (201) are respectively fixedly connected to first springs (205), one end of the two first springs (205) away from the outer plate (204) is fixedly connected to the main cover frame (201), the middle part of the side of the outer plate (204) close to the main cover frame (201) is fixedly connected to a card plate (206), and one end of the card plate (206) away from the outer plate (204) is adapted to the plug-in card slot (203) and extends into the main cover frame (201); One end of the clamping plate (206) extending into the main cover frame (201) is provided with an oblique opening facing the auxiliary cover frame (208).

2. A workpiece clamping device for pipe processing according to claim 1, characterized in that: Each of the tube clamp mechanisms (3) comprises a sliding frame (301), a connection hole (302) is formed through the upper end of the side wall of the sliding frame (301) close to the clamping plate mechanism (2), and the output end of the first electric telescopic column (109) is fixedly plugged into the connection hole (302); The lower ends of both side walls of the sliding frame (301) are penetrated by sliding holes (303) adapted to receive the sliding rods (105); Two symmetrical motor components are arranged at the inner upper end of the sliding frame (301); Two centrally symmetrical clamp assemblies are arranged at the inner lower end of the sliding frame (301); A strap assembly is commonly installed on the lower sides of the two clamp assemblies; A pull rope assembly is installed on each of the clamp assemblies.

3. A workpiece clamping device for pipe processing according to claim 2, characterized in that: Each of the motor components comprises a first motor (304); opposite sides of the two first motors (304) are fixedly connected to the side wall of the sliding frame (301); output ends of opposite sides of the two first motors (304) are fixedly connected to an organic column (305); and a gear (306) is fixedly sleeved on the outer side of the organic column (305); Each of the clamping components comprises an annular tube (307) movably sleeved with a sliding rod (105), and teeth (308) adapted to mesh with the gear (306) are evenly and evenly fixedly connected to the outer sides of the two adjacent ends of the annular tubes (307), and a clamping arm (309) is fixedly connected to the side of each annular tube (307), and the two clamping arms (309) are symmetrical, and the ends of the clamping arms (309) away from the annular tubes (307) are arc-shaped and protrude outwards; The binding belt assembly comprises two electric cable winders (310), a binding belt (311) is arranged between the two electric cable winders (310), two ends of the binding belt (311) are respectively and correspondingly wound inside the electric cable winders (310), and the two electric cable winders (310) are respectively fixedly mounted on one end of the two clamping arms (309) away from the ring tube (307); Each of the pull rope assemblies comprises a winding drum (312), wherein the winding drum (312) is fixedly connected to the outer side of the highest point of the protrusion of the arc section of the clamping arm (309), and a rotating rod (313) is rotatably inserted inside the winding drum (312), one end of the rotating rod (313) extends out of the winding drum (312) and is fixedly sleeved with a rotating handle (314), a section of the rotating rod (313) inside the winding drum (312) is wound with a pull rope (315), and one end of the pull rope (315) away from the rotating rod (313) passes through the winding drum (312) and is fixedly connected to the outer plate (204).

4. A workpiece clamping device for pipe processing according to claim 3, characterized in that: The binding strap (311) comprises a wavy binding strap nylon belt piece (311A), and each wavy bend of the binding strap nylon belt piece (311A) is filled with a binding strap adhesive strip (311B).

5. A workpiece clamping device for pipe processing according to claim 1, characterized in that: The external frame mechanism (4) comprises an external frame (401), the outer side of the external frame (401) is fixedly connected to a mounting plate (402), the lower side of the external frame (401) is slidably plugged with a second electric telescopic column (403), the lower end of the second electric telescopic column (403) is fixedly connected to a connecting clamp (404), the connecting clamp (404) is movably connected to a second motor (405) via a rotating shaft, a rotator (406) is installed on the connecting rotating shaft between the connecting clamp (404) and the second motor (405), and the lower output end of the second motor (405) is adapted to be inserted into the plate hole (102) and is fixedly connected to the plate hole (102).

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