[ summary of the invention ]
The technical problem to be solved by the invention is as follows: the problem of among the prior art numerical control intersecting line cutting machine expensive, lack simple and easy intersecting line cutting machine is solved.
The invention adopts the following technical scheme:
in a first aspect, the present invention provides a simple laser intersection line cutting machine, comprising: the pipe clamping fixture 10, the gear transmission assembly 20, the cam 30 and the laser cutting assembly 40;
the pipe clamping fixture 10 is used for clamping a pipe 50 to be cut;
the gear transmission assembly 20 is connected with the pipe clamping fixture 10, the gear transmission assembly 20 rotates along with the rotation of the pipe 50 to be cut, wherein the gear transmission assembly 20 is connected with the pipe clamping fixture 10 in a floating mode;
the gear transmission assembly 20 is connected with the cam 30, the gear transmission assembly 20 drives the cam 30 to rotate, and the cam 30 is used for generating a track of a intersecting line of the pipe 50 to be cut;
the laser cutting assembly 40 comprises a first sliding frame 41, a cam thimble 42 and a laser cutting head 43, wherein the cam thimble 42 and the laser cutting head 43 are respectively arranged at two ends of the first sliding frame 41; the cam pin 42 contacts the cam 30 and reciprocates as the cam 30 rotates; the laser cutting head 43 and the cam thimble 42 synchronously reciprocate to cut the intersecting line of the rotating pipe 50 to be cut, wherein the cutting track of the intersecting line is determined by the reciprocating path of the cam thimble 42.
Preferably, the gear transmission assembly 20 is configured to transmit the rotation direction of the pipe 50 to be cut to the cam 30 after turning 90 °, and the rotation speeds of the cam 30 and the pipe 50 to be cut are the same.
Preferably, the gear transmission assembly 20 is configured to transmit the rotation direction of the pipe to be cut 50 after turning 90 ° to the cam 30, and the rotation speeds of the cam 30 and the pipe to be cut 50 are the same, which specifically includes:
the gear transmission assembly 20 comprises a gear ring 21, a first gear 22, a first bevel gear 23, a second bevel gear 24, a second gear 25, a gear set 26 and a third gear 27;
the gear ring 21 is used for transmitting the rotation of the pipe 50 to be cut to the first gear 22;
the first gear 22 and the first bevel gear 23 are coaxially arranged and synchronously rotate;
the first bevel gear 23 and the second bevel gear 24 are engaged for turning the rotation direction by 90 °;
the second bevel gear 24 and the second gear 25 are coaxially arranged;
the second gear 25 is meshed with a large gear 261 of the gear set 26, a small gear 262 of the gear set 26 is meshed with the third gear 27, the third gear 27 and the pipe 50 to be cut have the same rotating speed, and the third gear 27 and the cam 30 are coupled and rotate synchronously.
Preferably, the simple laser intersection line cutting machine further comprises a machine frame 60, wherein the machine frame 60 comprises a positioning guide rail 61 and a positioning bracket 62;
the positioning guide rail 61 is used for placing the pipe 50 to be cut, and a rotating wheel 611 is arranged at the contact position of the positioning guide rail 61 and the pipe 50 to be cut;
the laser cutting assembly 40 is disposed on the positioning bracket 62 and can slide relatively along the positioning bracket 62.
Preferably, the cam pin 42 contacts the cam 30 and reciprocates along with the rotation of the cam 30, and specifically includes:
the laser cutting assembly 40 and the upright of the positioning bracket 62 are coupled by a spring, and the cam pin 42 is in close contact with the profile of the cam 30 under the action of the elastic force of the spring, so that the cam pin 42 reciprocates along with the rotation of the cam 30.
Preferably, the laser cutting assembly 40 further comprises a second sliding frame 44;
the second sliding frame 44 is disposed on the first sliding frame 41, and the laser cutting head 43 is disposed on the second sliding frame 44.
Preferably, a sliding rod 411 is disposed on the first sliding frame 41, a sliding block 441 coupled to the sliding rod 411 is disposed on the second sliding frame 44, and the second sliding frame 44 can relatively slide along the sliding rod 411 or be fixed on the sliding rod 411.
Preferably, the pipe gripping jig 10 includes: a first semicircular ring 11 and a second semicircular ring 12;
the first semicircular ring 11 and the second semicircular ring 12 are butted to form the pipe clamping fixture 10.
Preferably, a first cross arm 111 and a second cross arm 112 are arranged on two sides of the semi-arc shape of the first semi-circular ring 11, and a third cross arm 121 and a fourth cross arm 122 are arranged on two sides of the semi-arc shape of the second semi-circular ring 12;
the first crossbar 111 and the third crossbar 121 form a first connecting plate, and the second crossbar 112 and the fourth crossbar 122 form a second connecting plate, which are respectively connected to the gear assembly 20.
Preferably, the simple laser intersection line cutting machine further includes: an electronic control assembly 80; the electric control assembly 80 comprises a stepping motor driver 81, a serial port adapter plate 82 and a single chip microcomputer 83;
the stepping motor driver 81 is used for controlling the rotation of the pipe 50 to be cut; the serial port adapter plate 82 is used for transmitting control parameters to the single chip microcomputer 83 through a serial port protocol; the single chip 83 is used for processing the control parameters to control the operation of the stepping motor driver 81.
The embodiment of the invention provides a simple laser intersecting line cutting machine which comprises a pipe clamping fixture, a gear transmission assembly, a cam and a laser cutting assembly, wherein the pipe clamping fixture is used for clamping a pipe to be cut; the laser cutting assembly comprises a cam thimble, a first sliding frame and a laser cutting head, the cam thimble contacts with the cam and makes reciprocating linear movement along with the rotation of the cam, the laser cutting head, the first sliding frame and the cam thimble synchronously make reciprocating linear movement, the cutting track of the intersecting line is determined by the path of the reciprocating linear movement of the cam thimble, the rotation of the pipe to be cut is matched, and the laser cutting head performs intersecting line cutting on the pipe to be cut. The simple laser intersecting line cutting machine provided by the embodiment of the invention adopts the cam mechanism, so that the precision is higher and the operation is simple; the cost is extremely low, the maintenance is easy, a simple numerical control cutting machine can be replaced, and the numerical control cutting machine is suitable for large-batch processing; the operation is simple and convenient, complex programming is not needed, and only the cam is required to be correctly installed.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are for convenience only to describe the present invention without requiring the present invention to be necessarily constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The first embodiment is as follows:
the present invention provides a simple laser intersection line cutting machine, as shown in fig. 1 and 6, comprising: the pipe clamping fixture 10, the gear transmission assembly 20, the cam 30 and the laser cutting assembly 40;
the pipe clamping fixture 10 is used for clamping a pipe 50 to be cut;
the gear transmission assembly 20 is connected with the pipe clamping fixture 10, the gear transmission assembly 20 rotates along with the rotation of the pipe 50 to be cut, wherein the gear transmission assembly 20 is connected with the pipe clamping fixture 10 in a floating mode;
the gear transmission assembly 20 is connected with the cam 30, the gear transmission assembly 20 drives the cam 30 to rotate, and the cam 30 is used for generating a track of a intersecting line of the pipe 50 to be cut;
the laser cutting assembly 40 comprises a first sliding frame 41, a cam thimble 42 and a laser cutting head 43, wherein the cam thimble 42 and the laser cutting head 43 are respectively arranged at two ends of the first sliding frame 41; the cam pin 42 contacts the cam 30 and reciprocates as the cam 30 rotates; the laser cutting head 43 and the cam thimble 42 synchronously reciprocate to cut the intersecting line of the rotating pipe 50 to be cut, wherein the cutting track of the intersecting line is determined by the reciprocating path of the cam thimble 42.
The embodiment of the invention provides a simple laser intersecting line cutting machine which comprises a pipe clamping fixture, a gear transmission assembly, a cam and a laser cutting assembly, wherein the pipe clamping fixture is used for clamping a pipe to be cut; the laser cutting assembly comprises a cam thimble, a first sliding frame and a laser cutting head, the cam thimble contacts with the cam and makes reciprocating linear movement along with the rotation of the cam, the laser cutting head, the first sliding frame and the cam thimble synchronously make reciprocating linear movement, the cutting track of the intersecting line is determined by the path of the reciprocating linear movement of the cam thimble, the rotation of the pipe to be cut is matched, and the laser cutting head performs intersecting line cutting on the pipe to be cut. The simple laser intersecting line cutting machine provided by the embodiment of the invention adopts the cam mechanism, so that the precision is higher and the operation is simple; the cost is extremely low, the maintenance is easy, a simple numerical control cutting machine can be replaced, and the numerical control cutting machine is suitable for large-batch processing; the operation is simple and convenient, complex programming is not needed, and only the cam is required to be correctly installed.
With reference to fig. 7 to 10 and 12, the specific contents of the cam for generating the track of the intersecting line of the pipe to be cut will be described with reference to the first embodiment of the present invention. The intersecting line shapes of the pipes are divided into two types, namely a radial intersecting line (a set of a line shape 51 and a line shape 52 in fig. 10) of the pipe 50 shown in fig. 10 and an axial intersecting line 91 of the pipe 90 shown in fig. 12, the cam corresponding to the radial intersecting line (a set of a line shape 51 and a line shape 52 in fig. 10) is the cam 30 shown in fig. 7 and 9, and the cam corresponding to the axial intersecting line 91 is the cam 70 shown in fig. 8; the radial intersecting line is an intersecting line along the diameter direction, and the axial intersecting line is an intersecting line along the axial direction. It should be noted that the pipe 50 and the pipe 90 are only used for distinguishing from each other, and in actual production, the pipe 50 and the pipe 90 may be the same pipe or two different pipes.
Continuing with the example of the cam 30, in order to enable the cam 30 to rotate synchronously with the pipe 50 to be cut, a track of a radial intersecting line can be generated so as to cut the radial intersecting line on the pipe 50 to be cut, when the cam 30 is manufactured, a track curve of the radial intersecting line corresponding to the cam 30 is modeled through matlab software, then interval points are divided for the track curve, coordinates of each point are output to an Excel table, and a profile curve of the cam 30 is fitted through motion simulation analysis in Solidworks software, so that the track of the radial intersecting line can be generated when the cam 30 rotates. Cam 30 utilizes, among other things, an inner profile curve, such as the set of inner profiles 31 and 32 shown in fig. 9.
Similarly, in order to enable the cam 70 to synchronously rotate along with the pipe 90 to be cut, the track of the axial intersecting line 91 can be generated so as to facilitate cutting of the axial intersecting line 91, when the cam 70 is manufactured, a track curve of the axial intersecting line 91 corresponding to the cam 70 is modeled through matlab software, then, the track curve is divided into intervals for taking points, coordinates of each point are output to an Excel table, and then, a profile curve of the cam 70 is fitted through motion simulation analysis in Solidworks software, so that the track of the axial intersecting line 91 can be generated when the cam 70 rotates.
The structure of the pipe clamping fixture 10 will be described with reference to fig. 1 and 3 in conjunction with the first embodiment of the present invention. The pipe clamping fixture 10 is used for clamping a pipe 50 to be cut, and for the current hollow pipe machining, in order to keep the clamping force even, the cost is extremely low, and the pipe clamping fixture 10 is preferably designed into an encircling structure. The pipe clamping fixture 10 comprises a first semicircular ring 11 and a second semicircular ring 12; the first semicircular ring 11 and the second semicircular ring 12 are butted to form the pipe clamping fixture 10. A first cross arm 111 and a second cross arm 112 are arranged on two semicircular arc sides of the first semicircular ring 11, and a third cross arm 121 and a fourth cross arm 122 are arranged on two semicircular arc sides of the second semicircular ring 12; the first crossbar 111 and the third crossbar 121 form a first connecting plate, and the second crossbar 112 and the fourth crossbar 122 form a second connecting plate, which are connected to the ring gear 21 of the gear assembly 20, respectively. Because the diameter of the pipe to be cut in the actual production has a certain dimension, the pipe clamping fixture 10 does not need to be made into a stepless regulation fixture, and if the pipe with different dimensions needs to be cut, only the corresponding fixture needs to be replaced.
The function and structure of the gear assembly 20 will be described with reference to fig. 1 and 2 in conjunction with the first embodiment of the present invention. The gear assembly 20 is connected with the pipe clamping fixture 10 such that the gear assembly 20 can rotate with the rotation of the pipe 50 to be cut; meanwhile, the gear transmission assembly 20 is connected with the cam 30 and can drive the cam 30 to synchronously rotate, specifically, the gear transmission assembly 20 is used for turning the rotation direction of the pipe 50 to be cut by 90 degrees and then transmitting the turned direction to the cam 30, and the rotation speeds of the cam 30 and the pipe 50 to be cut are the same; wherein the gear assembly 20 may also be connected to the cam 70, or the gear assembly 20 may be connected to both the cam 30 and the cam 70. In order to distinguish the cam 30 from the cam 70, in the first embodiment of the present invention, the cam 30 may be referred to as a first cam, and the cam 70 may be referred to as a second cam, that is, the first cam 30 and the second cam 70.
The gear transmission assembly 20 comprises a gear ring 21, a first gear 22, a first bevel gear 23, a second bevel gear 24, a second gear 25, a gear set 26 and a third gear 27; the gear ring 21 is used for transmitting the rotation of the pipe 50 to be cut to the first gear 22; the first gear 22 and the first bevel gear 23 are coaxially arranged and synchronously rotate; the first bevel gear 23 and the second bevel gear 24 are engaged for turning the rotation direction by 90 °; the second bevel gear 24 and the second gear 25 are coaxially arranged; the second gear 25 is meshed with a large gear 261 of the gear set 26, a small gear 262 of the gear set 26 is meshed with the third gear 27, the transmission ratio of each component of the gear transmission assembly 20 is set based on experience, the third gear 27 and the pipe 50 to be cut have the same rotating speed, and the third gear 27 and the cam 30 are coupled and rotate synchronously.
With reference to fig. 4, a connection manner between the ring gear 21 and the pipe clamping jig 10 will be described in conjunction with the first embodiment of the present invention. Because the factory environment is relatively poor, the pipe 50 to be cut can be slightly deformed in the storage and transportation processes, and the floating connection can enable the accuracy of the intersecting line to be directly dependent on the accuracy of the gear ring 21, so that the connection mode of the gear ring 21 and the pipe clamping fixture 10 adopts floating connection, and the pipe 50 to be cut can not be influenced by the deformation of the pipe 50 to be cut. The floating connection has the defect that the error caused by the gear clearance can be increased, but the cutting compensation value can be set to eliminate the gear clearance error under the automatic running state of the simple laser intersecting line cutting machine.
With reference to fig. 1, a structure of a frame 60 of a simple laser intersection line cutting machine will be described with reference to a first embodiment of the present invention. The frame 60 comprises a positioning guide rail 61 and a positioning bracket 62; the positioning guide rail 61 is used for placing the pipe 50 to be cut, the positioning guide rail 61 and the contact position of the pipe 50 to be cut are provided with a rotating wheel 611, the rotating wheel 611 is arranged to facilitate the rotation of the pipe 50 to be cut, and the rotating friction resistance of the pipe 50 to be cut is reduced. The laser cutting assembly 40 is arranged on the positioning bracket 62 and can relatively slide along the positioning bracket 62, and the relative sliding between the laser cutting assembly 40 and the positioning bracket 62 can be realized by the structure of a sliding rail and a sliding groove in the prior art; a first upright 621 and a second upright 622 are disposed at two ends of the positioning bracket 62, and both the first upright 621 and the second upright 622 can be connected to the laser cutting assembly 40 by springs.
The structure of the laser cutting assembly 40 will be described with reference to fig. 1 and 6 in conjunction with the first embodiment of the present invention. The laser cutting assembly 40 includes a first sliding frame 41, a second sliding frame 44, a cam thimble 42 and a laser cutting head 43, the cam thimble 42 and the second sliding frame 44 are respectively disposed at two ends of the first sliding frame 41, the cam thimble 42 is used for contacting the cam 30 and making reciprocating linear movement along with the rotation of the cam 30, and the laser cutting head 43 is disposed on the second sliding frame 44. Since the cam thimble 42 and the second sliding frame 44 are fixed on the first sliding frame 41, the cutting track of the intersecting line is determined by the reciprocating path of the cam thimble 42, and the laser cutting head 43 and the cam thimble 42 synchronously reciprocate and linearly move to match with the rotation of the pipe 50 to be cut, so that the intersecting line cutting can be performed on the pipe 50 to be cut.
In order to make the cam thimble 42 contact the cam 30 and move back and forth along with the rotation of the cam 30, the laser cutting assembly 40 and the first upright 621 or the second upright 622 of the positioning bracket 62 are connected by a spring coupling, the cam thimble 42 can cling to the inner contour of the cam 30 under the action of the spring force, and when the cam 30 rotates synchronously with the pipe 50 to be cut under the driving of the gear transmission assembly 20, the cam thimble 42 can move back and forth along with the change of the contact position with the inner contour of the cam 30. When the cam 30 is replaced with the cam 70, the cam pin 42 contacts the outer contour of the cam 70, and the cam pin 42 is linearly movable in a reciprocating manner in accordance with a change in the contact position with the outer contour of the cam 70.
With reference to fig. 6, in order to adapt the laser cutting assembly 40 to pipes 50 to be cut with different diameters and sizes, the second sliding frame 44 can be adjusted on the first sliding frame 41 to adjust the relative position between the laser cutting head 43 and the pipe 50 to be cut, so as to facilitate the intersecting line cutting of the pipe 50 to be cut. Specifically, a sliding rod 411 is arranged on the first sliding frame 41, a sliding block 441 coupled with the sliding rod 411 is arranged on the second sliding frame 44, and the second sliding frame 44 can relatively slide along the sliding rod 411 or be fixed on the sliding rod 411, so as to adjust the height of the laser cutting head 43 relative to the pipe 50 to be cut.
With reference to fig. 1, 6, 9 and 10, a process of generating a cutting trajectory of a radial intersection line will be described with reference to the first embodiment of the present invention. When the pipe 50 to be cut rotates, under the action of the gear transmission assembly 20, the rotation of the pipe 50 to be cut is turned by 90 degrees and then transmitted to the cam 30, the rotation speed of the cam 30 is the same as that of the pipe 50 to be cut, and the cam 30 and the pipe 50 to be cut synchronously rotate, the laser cutting machine 40 is connected with the first upright column 621 or the second upright column 622 under the action of the spring, so that the laser cutting machine 40 does reciprocating linear movement along with different contact positions with the inner contour of the cam 30, and the laser cutting head 43 cuts a radial intersecting line on the pipe 50 to be cut in cooperation with the rotation of the pipe 50 to be cut. Specifically, when cutting the contour line 51 of the radial intersection line, the laser cutting assembly 40 is connected with the first column 621 through a spring, the cam thimble 42 contacts the inner contour line 31 of the cam 30, the cam thimble 42 contacts the inner contour line 31 along with the rotation of the cam 30 and makes reciprocating linear movement to match the rotation of the pipe 50 to be cut, and at the same time, the laser cutting head 43 makes reciprocating linear movement to cut the contour line 51 of the radial intersection line of the pipe 50 to be cut; when the cam pin 42 is switched from the contact with the inner contour line 31 of the cam 30 to the contact with the inner contour line 32 of the cam 30, the laser cutting assembly 40 and the second column 622 are connected through the spring, the cam pin 42 is in contact with the inner contour line 32 along with the rotation of the cam 30 and performs reciprocating linear movement, and the laser cutting head 43 performs reciprocating linear movement and cuts the contour line 52 of the radial intersecting line of the pipe 50 to be cut in cooperation with the rotation of the pipe 50 to be cut.
With reference to fig. 1, 8 and 12, a description will be given of a process of generating a cutting trajectory of the axial intersecting line 91 according to a first embodiment of the present invention. Specifically, when the axial intersection line 91 is cut, the laser cutting assembly 40 is connected to the first column 621 through a spring, the cam pin 42 contacts the outer contour line of the cam 70 along with the rotation of the cam 70 and makes reciprocating linear movement in cooperation with the rotation of the pipe 90 to be cut, and at the same time, the laser cutting head 43 makes reciprocating linear movement and cuts the axial intersection line 91 of the pipe 90 to be cut.
Referring to fig. 11 in combination with the first embodiment of the present invention, the simple laser intersection line cutting machine further includes an electric control assembly 80 for performing automatic or semi-automatic intersection line cutting. Specifically, the electronic control assembly 80 comprises a stepping motor driver 81, a serial port adapter plate 82 and a single chip microcomputer 83; the stepping motor driver 81 is used for controlling the rotation of the pipe to be cut 50, and specifically, the rotation of the pipe to be cut 50 is controlled by controlling the stepping motor; the serial port adapter plate 82 is used for transmitting control parameters to the single chip microcomputer through a serial port protocol; the single chip 83 is used for processing the control parameters to control the operation of the stepping motor driver 81. The control parameters can be input by setting a touch display screen, and the control parameters can be selected from parameters such as the rotating speed, the forward rotation, the reverse rotation, the starting and the stopping of the stepping motor; when the axial intersecting line cutting is carried out, the gear clearance can be compensated by setting a cutting compensation value through the touch display screen. The singlechip can be an stc12c5a60s2 singlechip.
Example two:
in a specific application scenario, in order to facilitate the intersecting line cutting of the pipe, for example, when the intersecting line is cut on the same pipe, both the radial intersecting line and the axial intersecting line need to be cut on the same pipe, at this time, the cam 30 for cutting the radial intersecting line needs to be switched to the cam 70 for cutting the axial intersecting line, and the cam needs to be replaced again, which is troublesome and wastes labor. In order to conveniently and rapidly carry out the switching from the radial intersection line cutting to the axial intersection line cutting or from the axial intersection line cutting to the radial intersection line cutting, the cam 30 and the cam 70 are arranged side by side and are simultaneously arranged on the simple laser intersection line cutting machine, and the switching cutting of the radial intersection line and the axial intersection line can be realized without replacing the cam along with the rotation of the gear transmission assembly 20.
For convenience and clarity, the cam 30 is embodied as a first cam, designated as the first cam 30, and the cam 70 is embodied as a second cam, designated as the second cam 70.
The simple laser intersecting line cutting machine provided by the second embodiment of the invention further comprises a first cam 30 and a second cam 70 which are arranged side by side at intervals, and a first cam thimble 42 and a second cam thimble 45 which are arranged on the laser cutting assembly 40, on the basis of the pipe clamping fixture 10, the gear transmission assembly 20 and the laser cutting assembly 40 in the first embodiment of the invention, wherein the first cam thimble 42 is used for contacting the first cam 30, and the second cam thimble 45 is used for contacting the second cam 70.
With reference to fig. 13 to 16, in combination with the second embodiment of the present invention, the first cam thimble 42 includes a first straight rod 421, a second straight rod 422, and a third straight rod 423, the first straight rod 421 and the third straight rod 423 are arranged in parallel, and two ends of the second straight rod 422 are respectively connected to the first straight rod 421 and the third straight rod 423. When the first cam 30 is used, the first straight rod 421 contacts with the inner contour line of the first cam 30 and makes reciprocating linear movement along with the rotation of the first cam 30; the third straight rod 423 is disposed on the first clamping portion 412 of the first sliding frame 41, so that the first cam thimble 42 as a whole can drive the first sliding frame 41 to perform reciprocating linear movement, and further the laser cutting head 43 performs reciprocating linear movement, and is matched with the rotation of the pipe 50 to be cut, so as to perform radial intersecting line cutting.
The second cam thimble 45 comprises a fourth straight rod 451, a fifth straight rod 452 and a sixth straight rod 453, the fourth straight rod 451 and the sixth straight rod 453 are arranged in parallel, and two ends of the fifth straight rod 452 are respectively connected with the fourth straight rod 451 and the sixth straight rod 453. When the second cam 70 is used, the fourth straight rod 451 is in line contact with the outer contour of the second cam 70 and moves linearly and reciprocally with the rotation of the second cam 70; the sixth straight bar 453 is disposed on the second clamping portion 413 of the first sliding frame 41, so that the second cam thimble 45 as a whole can drive the first sliding frame 41 to perform reciprocating linear movement, and further the laser cutting head 43 performs reciprocating linear movement to match with the rotation of the pipe 50 to be cut, thereby performing axial intersecting line cutting.
Referring to fig. 15 and 16, in order to perform the intersecting line cutting, the first cam pin 42 and the second cam pin 45 can operate in different time periods, that is, when the first straight rod 421 of the first cam pin 42 contacts with the inner contour of the first cam 30, the fourth straight rod 451 of the second cam pin 45 is out of contact with the outer contour of the second cam 70; alternatively, when the first straight rod 421 of the first cam pin 42 is out of contact with the inner contour of the first cam 30, the fourth straight rod 451 of the second cam pin 45 is in contact with the outer contour of the second cam 70. The first clamping portion 412 and the second clamping portion 413 on the first sliding frame 41 are controlled by controlling the depth of the clamping portion to control the contact or separation of the first straight bar 421 and the first cam 30 and the contact or separation of the fourth straight bar 451 and the second cam 70 when clamped with the third straight bar 423 and the sixth straight bar 453, respectively.
The connection mode of the first clamping part 412 and the third straight rod 423 can be selected from pin connection or clamping connection; the second clamping portion 413 and the sixth straight rod 453 may be connected by a pin connection or a snap connection.
In other embodiments, the contact or separation of the first cam pin 42 and the second cam pin 45 with or from the first cam 30 or the second cam 70 may also be adjusted by adjusting the relative positions of the first clamping portion 412 and the second clamping portion 413 on the first sliding frame 41. For example, the positions of the first and second grip portions 412 and 413 are controlled by providing a stepping motor, and the contact or separation of the first straight bar 421 and the first cam 30 and the contact or separation of the fourth straight bar 451 and the second cam 70 are switched and controlled. In a specific embodiment, when the stepping motor controls the first clamping portion 412 to the first position and the second clamping portion 413 to the second position, the first straight rod 421 contacts the first cam 30 and the fourth straight rod 451 is separated from the second cam 70; when the stepping motor controls the first clamping portion 412 to the third position and the second clamping portion 413 to the fourth position, the first straight bar 421 is separated from the first cam 30, and the fourth straight bar 451 contacts the second cam 70.
The second embodiment of the present invention provides a dual-cam laser intersection line cutting machine, which can be decomposed into a simple laser intersection line cutting machine including the first cam 30 and a simple laser intersection line cutting machine including the second cam 70, so that the working process of radial intersection line cutting corresponding to the first cam 30 and the working process of axial intersection line cutting corresponding to the second cam 70 can be known by referring to the disclosure in the first embodiment of the present invention, and will not be described in detail herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.