Automatic marking device for tensile test

Abstract

The invention provides an automatic marking device for a tensile test, and relates to the technical field of heat shrink tube marking. And a driving mechanism. The cutter assembly comprises a cutter top plate, a first cutter, a second cutter and a cutter bottom plate; the first cutter is arranged on one side below the cutter top plate and used for partially cutting one end of the heat shrink tube, and the second cutter is arranged on the other side below the cutter top plate and used for cutting off the other end of the heat shrink tube; the cutter bottom plate is arranged below the first cutter and the second cutter at an interval; the clamping assembly comprises a guide mechanism, a front pressing connecting plate and a rear pressing plate; the front pressing connecting plate and the rear pressing plate slide along the guide mechanism under the action of the driving mechanism; the electric control assembly comprises a controller, and the controller is in signal connection with the driving mechanism; the device is suitable for heat shrink tube detection, the heat shrink tube can be marked through cutting, the heat shrink tube can be positioned and clamped during cutting, and marking accuracy is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of heat shrink tube marking, and in particular relates to an automatic marking device for tensile testing. Background Art

[0002] With the development of technology, customers have put forward higher requirements for the performance of heat shrink tubing. In order to ensure the shrinkage rate of heat shrink tubing, it is necessary to take samples from each roll of material and test its shrinkage rate. Before testing, the heat shrink tubing needs to be manually marked and then its size after heat shrinkage is tested. During the process, there is a certain discrepancy between the marked size and the labor intensity is high.

[0003] The Chinese invention patent with publication number CN106275670A provides a device for marking heat shrink tubes using laser technology. The upper laser and the lower laser focus the laser beam on the surface of the heat shrink tube through the lens to form a fine, high-energy density light spot. Each high-energy laser pulse instantly breaks the molecular bonds on the surface of the heat shrink tube to form a marking trace. The device for marking heat shrink tubes using laser provided by the above invention is mainly suitable for marking symbols and patterns on heat shrink tubes before leaving the factory, but is not suitable for marking heat shrink tubes during the detection process. On the one hand, it is difficult for the device to mark multiple heat shrink tubes at the same time, thereby reducing the detection efficiency. On the other hand, because heat shrink tubes have different materials, the device is difficult to mark heat shrink tubes of certain materials. Laser powder needs to be added to the material for marking, which is difficult to apply to all heat shrink tubes.

[0004] In the process of marking the heat shrink tube, how to clamp and fix the heat shrink tube so that the marking position is consistent and the accuracy of the marking is also a difficult problem.

[0005] Therefore, it is necessary to provide an automatic marking device for tensile testing that is suitable for marking the size of heat shrink tubes and accurately marking them. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides an automatic marking device for a tensile test. The automatic marking device for a tensile test positions and clamps a heat shrink tube by a clamping assembly before marking to ensure the accuracy of the marking; then one end of the heat shrink tube is cut off to remove the material head to ensure the measurement reference, and the other end of the heat shrink tube is partially cut to mark the heat shrink tube at the partially cut end, thereby solving the technical problems that the marking device in the prior art is not suitable for size marking when detecting heat shrink tubes and the marking is inaccurate.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0008] A tensile test automatic marking device for marking a heat shrink tube, comprising:

[0009] top plate; and

[0010] driving mechanism; and

[0011] A cutter assembly, comprising a cutter top plate, a first cutter, a second cutter, and a cutter bottom plate; the first cutter and the second cutter are both connected to the cutter top plate, the first cutter is arranged on one side below the cutter top plate, and is used to partially cut one end of the heat shrink tube, the second cutter is arranged on the other side below the cutter top plate, and is used to cut off the other end of the heat shrink tube; the cutter bottom plate is arranged below the first cutter and the second cutter, and holes are arranged on the cutter bottom plate; and

[0012] A clamping assembly, the clamping assembly is arranged below the cutter assembly, and includes a guide mechanism, a front pressure connecting plate, and a rear pressure plate; the front pressure connecting plate and the rear pressure plate slide along the guide mechanism under the action of the driving mechanism, and the sliding directions of the front pressure connecting plate and the rear pressure plate are away from each other or close to each other; the front pressure connecting plate is connected to the front pressure plate, the front pressure plate includes a front clamping claw, the rear pressure plate includes a rear clamping claw, and the front clamping claw and the rear clamping claw both extend through the hole to above the cutter bottom plate; and

[0013] An electric control component, the electric control component includes a controller, and the controller is connected to the drive mechanism by signal;

[0014] Among them, after turning on the tensile test automatic marking device, the heat shrink tube is placed between the front clamp and the rear clamp, and the controller controls the driving mechanism to move the front pressure connecting plate backward and the rear pressure plate forward until the front pressure plate and the rear pressure plate are both in contact with the heat shrink tube. Then, the driving mechanism moves the first cutter and the second cutter downward to cut and mark the heat shrink tube.

[0015] Furthermore, the driving mechanism includes a driving member A, a driving member B, and a driving member C. The driving member A is arranged above the top plate, and the output shaft of the driving member A is connected to the cutter top plate for controlling the up and down movement of the cutter top plate; the driving member B is arranged on the rear side below the cutter bottom plate, and the push rod of the driving member B is connected to the front pressure connecting plate; the driving member C is arranged on the rear side below the cutter bottom plate, and the push rod of the driving member C is connected to the rear pressure plate.

[0016] Furthermore, the clamping assembly also includes a positioning seat, which is arranged at both ends of the guide mechanism, the positioning seat is connected to the cutter base plate, and the guide mechanism is arranged below the cutter base plate through the positioning seat.

[0017] Furthermore, it also includes an adjustment component, which includes a base plate, a positive and negative thread screw assembly, a positive thread nut, and a negative thread nut; a guide groove is provided on the base plate, the positive and negative thread screw assembly is connected to the base plate, the positive thread nut is provided on the positive thread of the positive and negative thread screw assembly, and the negative thread nut is provided on the negative thread of the positive and negative thread screw assembly, and the positive thread nut and the negative thread nut both move along the guide groove as the positive and negative thread screw assembly rotates; wherein, the front pressure connecting plate is provided on the outside of the positive thread nut, and the rear pressure plate is provided on the outside of the negative thread nut.

[0018] Furthermore, the forward and reverse thread screw assembly includes a forward and reverse thread screw and at least two seat bearings, the seat bearings are arranged on the base plate, and the two seat bearings are respectively arranged at both ends of the forward and reverse thread screw.

[0019] Furthermore, the adjustment assembly also includes a handwheel and a clamping seat, the chuck of the clamping seat is connected to the forward and reverse threaded screw, the handwheel is connected to the forward and reverse threaded screw, and the forward nut and the reverse nut are moved by rotating the handwheel.

[0020] Furthermore, a hydraulic buffer is installed on both the positive thread nut and the negative thread nut.

[0021] Furthermore, it also includes upper and lower movable components, which include the front pressure plate, pads, linear guides, side follower bearings, left slide plate, and right slide plate. The two ends of the front pressure plate are respectively arranged on the sliders of the two linear guides through two pads, and the two linear guides are respectively arranged at the two ends of the front pressure connecting plate; the two side follower bearings are respectively arranged on the two pads, and the side follower bearings are respectively arranged in the slide grooves of the left slide plate and the right slide plate, and the left slide plate and the right slide plate are both arranged between the cutter base plate and the base plate.

[0022] Furthermore, it also includes a pressing assembly, which includes a driving member D, a push plate, and a lower pressing plate. The driving member D is connected to the top plate and is arranged below the top plate. The driving member D is connected to the controller signal; the driving member D is connected to the push plate, and the push plate moves up and down under the action of the driving member D; the lower pressing plate is connected to the push plate, and the lower pressing plate is located between the first cutter and the second cutter, and is used to flatten the heat shrink tube.

[0023] Furthermore, the cutter assembly also includes an optical axis, a second linear bearing, a first tool holder, a second tool holder, a cutting edge insert A, and a cutting edge insert B; the two optical axes are respectively arranged on both sides of the driving member A, the optical axis passes through the top plate and the lower end is connected to the cutter top plate; the second linear bearing is arranged on the outside of the optical axis, and the second linear bearing is connected to the top plate; the first tool holder is arranged on one side of the cutter top plate, and the cutter top plate is connected to the first cutter through the first tool holder; the second tool holder is arranged on the other side of the cutter top plate, and the cutter top plate is connected to the second cutter through the second tool holder; the cutting edge insert A is arranged on the cutter bottom plate and corresponds to the position of the first cutter; the cutting edge insert B is arranged on the cutter bottom plate and corresponds to the position of the second cutter.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The position of the positive nut and the negative nut on the positive and negative thread screw can be adjusted by the hand wheel, so as to adjust the position of the front pressure connecting plate and the rear pressure plate, and can adapt to heat shrink tubes of different widths;

[0026] 2. Use drive parts B and C to push the front pressure connecting plate and the rear pressure plate respectively, clamp the heat shrink tube to the middle position of the cutter, and position and clamp the heat shrink tube so that the cut mark is perpendicular to the heat shrink tube to ensure the accuracy of the measurement;

[0027] 3. When the upper and lower movable components are opened under the push of the driving member B, they will move downward along with the left and right slides and fall under the cutter bottom plate to facilitate the placement of the heat shrink tube;

[0028] 4. The driving part D pushes the lower pressure plate to press the heat shrink tube to ensure that the heat shrink tube is straight when cutting the tube, thereby ensuring dimensional stability;

[0029] 5. The second cutter cuts one end flat and removes the material head to ensure the size measurement benchmark; the first cutter cuts the heat shrink tube in half, which can not only mark the length size of the heat shrink tube, but also retain a section for easy handholding for subsequent heat shrink detection operations;

[0030] 6. This equipment can cut multiple heat shrink tubes at the same time to improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the adjustment component in the embodiment provided by the present invention;

[0032] Figure 2 A schematic diagram of the structure of the clamping assembly in the embodiment provided by the present invention;

[0033] Figure 3This is a schematic structural diagram of the upper and lower movable components in the embodiment provided by the present invention;

[0034] Figure 4 A schematic diagram of the structure of a cutter assembly according to an embodiment of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a pressing assembly in an embodiment provided by the present invention;

[0036] Figure 6 A schematic diagram of the structure of an automatic marking device for tensile testing in an embodiment of the present invention;

[0037] Figure 7 It is an exploded view of the automatic marking device for tensile testing in an embodiment provided by the present invention.

[0038] In the figure, 1, cutter assembly; 11, right side plate; 12, left side plate; 13, rear guard plate; 14, front guard plate assembly; 15, cutter bottom plate; 151, blade insert A; 152, blade insert B; 153, hole; 16, top plate; 17, second linear bearing; 18, optical axis; 19, drive member A; 110, cutter top plate; 111, first cutter; 112, second cutter; 2, clamping assembly; 21, right slide plate; 211, right slide; 22, left slide plate; 221, left slide; 231, positioning seat; 241, first guide rod; 242, second guide rod; 251, first linear bearing; 261, rear pressure plate; 271, front pressure connecting plate; 281, drive Component B; 282, driving component C; 291, upper and lower movable components; 2911, linear guide; 2912, side follower bearing; 2913, spacer; 2914, front pressure plate; 3, adjustment component; 31, hand wheel; 32, clamping seat; 33, seat bearing; 34, positive and negative thread screw; 35, positive nut; 36, negative nut; 37, hydraulic buffer; 38, bottom plate; 4, lower pressure component; 41, driving component D; 42, push plate; 43, lower pressure plate; 5, electronic control component; 511, start button A; 512, start button B; 52, power switch; 53; clamping switch; 54, controller; 6, heat shrink tube; 61, heat shrink tube full cutting position; 62, heat shrink tube half cutting mark position. DETAILED DESCRIPTION

[0039] like Figure 1-7As shown, an automatic marking device for tensile testing is used to mark a heat shrink tube 6, including a top plate 16, a driving mechanism, the driving mechanism including a driving member A19, a driving member B281, and a driving member C282; and a cutter assembly 1, the cutter assembly 1 including a cutter top plate 110, a first cutter 111, a second cutter 112, and a cutter bottom plate 15; the driving member A19 is arranged above the top plate 110, and the output shaft of the driving member A19 is connected to the cutter top plate 110, and is used to control the cutter top plate 110 The first cutter 111 and the second cutter 112 are both connected to the cutter top plate 110, the first cutter 111 is arranged on one side below the cutter top plate 110, and is used to partially cut one end of the heat shrink tube 6, and the second cutter 112 is arranged on the other side below the cutter top plate 110, and is used to cut off the other end of the heat shrink tube 6; the cutter bottom plate 15 is arranged below the first cutter 111 and the second cutter 112, and a hole 153 is arranged on the cutter bottom plate 15; and

[0040] The clamping assembly 2 is arranged below the cutter assembly 1, and includes a guide mechanism, a front pressure connecting plate 271, and a rear pressure plate 261. The guide mechanism can be a first guide rod 241 and a second guide rod 242. The driving member B281 is arranged on the rear side below the cutter base plate 15. The push rod of the driving member B281 is connected to the front pressure connecting plate 271. The front pressure connecting plate 271 slides along the first guide rod 241 and the second guide rod 242 under the action of the driving member B281. The component C282 is arranged at the rear side below the cutter bottom plate 15, the push rod of the driving component C282 is connected to the rear pressure plate 261, and the rear pressure plate 261 slides along the first guide rod 241 and the second guide rod 242 under the action of the driving component C282; the front pressure connecting plate 271 is connected to the front pressure plate 2914, the front pressure plate 2914 includes a front clamping claw, and the rear pressure plate 261 includes a rear clamping claw, and the front clamping claw and the rear clamping claw both extend through the hole 153 to the top of the cutter bottom plate 15; and

[0041] The electric control component 5 includes a start button A511, a start button B512, a power switch 52, a clamping switch 53, and a controller 54. The controller 54 is connected to the drive element A19, the drive element B281, and the drive element C282 by signals;

[0042] Among them, after turning on the automatic marking device for tensile testing, the heat shrink tube 6 is placed between the front clamp and the rear clamp, and the controller 54 controls the front pressure plate 2914 to move backward and the rear pressure plate 261 to move forward until the front pressure plate 2914 and the rear pressure plate 261 are both in contact with the heat shrink tube 6. The controller 54 controls the driving member A19 to push the first cutter 111 and the second cutter 112 to move downward, and one end of the heat shrink tube 6 is cut off by the second cutter 112 to remove the material head and ensure the size measurement reference. By setting the spacing between the first cutter 111 and the second cutter 112, the heat shrink tube 6 of a set length can be marked. For example, the spacing between the first cutter 111 and the second cutter 112 can be set to 150 mm, and the other end of the heat shrink tube 6 is cut in half in the middle of the heat shrink tube 6 by the first cutter 111. The detection length of the heat shrink tube 6 can be marked by cutting, and a section can be retained for easy handholding for subsequent heat shrink detection operations.

[0043] In order to facilitate fixing the clamping assembly 2, the clamping assembly 2 further includes a positioning seat 231, such as Figure 2 As shown, the positioning seat 231 is respectively arranged at the two ends of the first guide rod 241 and the second guide rod 242, and the positioning seat 231 is connected to the cutter base plate 15. The first guide rod 241 and the second guide rod 242 are respectively arranged on both sides below the cutter base plate 15 through the positioning seat 231.

[0044] In order to facilitate the movement of the front pressure connecting plate 271 and the rear pressure plate 261, the clamping assembly 2 also includes a first linear bearing 251, and the front pressure connecting plate 271 slides on the first guide rod 241 and the second guide rod 242 through the two first linear bearings 251, and the rear pressure plate 261 slides on the first guide rod 241 and the second guide rod 242 through the two first linear bearings 251.

[0045] In order to limit the front pressing connecting plate 271 and the rear pressing plate 261 in the clamping assembly 2, as shown in FIG. Figure 1As shown, it also includes an adjustment component 3, which includes a base plate 38, a positive and negative thread screw assembly, a positive nut 35, and a negative nut 36; a guide groove is provided on the base plate 38, the positive and negative thread screw assembly is connected to the base plate 38, the positive nut 35 is arranged on the positive thread of the positive and negative thread screw assembly, and the negative nut 36 is arranged on the negative thread of the positive and negative thread screw assembly, and the positive nut 35 and the negative nut 36 both move along the guide groove as the positive and negative thread screw assembly rotates. For example, two follower bearings can be respectively installed on the positive nut 35 and the negative nut 36, and the bearing part of the follower bearing is placed in the guide groove of the base plate 38; wherein, the front pressure connecting plate 271 is arranged on the outside of the positive nut 35, and the rear pressure plate 261 is arranged on the outside of the negative nut 36.

[0046] When in use, the front pressure connecting plate 271 is moved to the positive nut 35 by the driving part B281, and the rear pressure plate 261 is moved to the negative nut 36 by the driving part C282, and the heat shrink tube 6 is placed between the front pressure plate 2914 and the rear pressure plate 261 for adaptation. If the distance between the heat shrink tube 6 and the front pressure plate 2914 and the rear pressure plate 261 does not match, the position of the positive nut 35 and the negative nut 36 is adjusted by rotating the positive and negative screw assembly, thereby adjusting the distance between the front pressure plate 2914 and the rear pressure plate 261, until the two sides of the heat shrink tube 6 are respectively in contact with the front pressure plate 2914 and the rear pressure plate 261, and the heat shrink tube 6 is positioned and clamped.

[0047] like Figure 1 As shown, the forward and reverse threaded screw assembly includes a forward and reverse threaded screw 34 and at least two seat bearings 33. The seat bearings 33 are arranged on the base plate 38. The two seat bearings 33 are respectively arranged at the two ends of the forward and reverse threaded screw 34. The forward and reverse threaded screw 34 is connected to the base plate 38 through the seat bearings 33.

[0048] In order to facilitate the rotation of the positive and negative threaded screw 34, in a specific embodiment, the adjustment assembly 3 further includes a hand wheel 31 and a clamping seat 32, the chuck of the clamping seat 32 is connected to the positive and negative threaded screw 34, the hand wheel 31 is connected to the positive and negative threaded screw 34, and the positive nut 35 and the negative threaded nut 36 are moved by rotating the hand wheel 31. After the position adjustment of the positive and negative threaded nut 35 and the negative threaded nut 36 is completed, the clamping seat 32 is locked to prevent the positive and negative threaded screw 34 from moving due to vibration and other reasons during the working process.

[0049] In order to buffer the front pressure connecting plate 271 and the rear pressure plate 261 when the front pressure connecting plate 271 contacts the positive thread nut 35 and the rear pressure plate 261 contacts the negative thread nut 36, in a specific embodiment, an oil pressure buffer 37 is installed on the positive thread nut 35 and the negative thread nut 36.

[0050] In order to facilitate the placement of the heat shrink tube 6 between the front pressing plate 2914 and the rear pressing plate 261, as shown in FIG. Figure 2 , Figure 3 As shown, it also includes an upper and lower movable component 291, which includes the front pressure plate 2914, a cushion block 2913, a linear guide 2911, a side follower bearing 2912, a left slide plate 22, and a right slide plate 21. The two ends of the front pressure plate 2914 are respectively arranged on the sliders of the two linear guides 2911 through two cushion blocks 2913, and the two linear guides 2911 are respectively arranged at the two ends of the front pressure connecting plate 271; the two side follower bearings 2912 are respectively arranged on the two cushion blocks 2913, and the side follower bearings 2912 are respectively arranged in the slide grooves of the left slide plate 22 and the right slide plate 21, as shown in FIG. Figure 2 As shown, the left slide groove 221 and the right slide groove 211 are both straight at the rear end and gradually inclined at the front end, and the left slide groove plate 22 and the right slide groove plate 21 are both arranged between the cutter bottom plate 15 and the bottom plate 38. By setting the upper and lower movable components 291, when the driving member B281 moves the front pressing connecting plate 271 forward, it can drive the front pressing plate 2914 to move forward and downward, so as to facilitate the placement of the heat shrink tube 6.

[0051] In order to ensure that the heat shrink tube 6 is straight when cutting the tube, Figure 5 As shown, it also includes a pressing component 4, which includes a driving component D41, a push plate 42, and a lower pressing plate 43. The driving component D41 is connected to the top plate 16 and is arranged below the top plate 16. The driving component D41 is connected to the controller 54 signal; the driving component D41 is connected to the push plate 42, and the push plate 42 moves up and down under the action of the driving component D41; the lower pressing plate 43 is connected to the push plate 42, and the lower pressing plate 43 is located between the first cutter 111 and the second cutter 112. After the heat shrink tube 6 is placed on the cutter bottom plate 15, the lower pressing plate 43 is driven to the upper end of the heat shrink tube 6 by the driving component D41, and the heat shrink tube 6 is clamped between the lower pressing plate 43 and the cutter bottom plate 15, which can flatten the heat shrink tube 6.

[0052] like Figure 4As shown, the cutter assembly 1 also includes an optical axis 18, a second linear bearing 17, a first tool holder, a second tool holder, a cutting edge insert A151, and a cutting edge insert B152; the two optical axes 18 are respectively arranged on both sides of the driving member A19, the optical axis passes through the top plate 16 and the lower end is connected to the cutter top plate 110; the second linear bearing 17 is arranged on the outside of the optical axis 18, and the second linear bearing 17 is connected to the top plate 16; the first tool holder is arranged on the cutter top plate 110 On one side of the cutter top plate 110, the cutter top plate 110 is connected to the first cutter 111 through the first cutter holder; the second cutter holder is arranged on the other side of the cutter top plate 110, and the cutter top plate 110 is connected to the second cutter 112 through the second cutter holder; the cutting edge insert A151 is arranged on the cutter bottom plate 15 and corresponds to the position of the first cutter 111; the cutting edge insert B152 is arranged on the cutter bottom plate 15 and corresponds to the position of the second cutter 112.

[0053] When the driving member A19 is pressed down, the cutter top plate 110 is driven to move downward, and the two optical axes 18 arranged on both sides of the driving member A19 move downward with the cutter top plate 110, thereby ensuring that the positions of the first cutter 111 and the second cutter 112 do not change when they move downward. If the positions of the first cutter 111 and the second cutter 112 swing, the gap between the first cutter 111 and the cutting edge insert A151, and between the second cutter 112 and the cutting edge insert B152 will change. When the gap becomes larger, the heat shrink tube 6 may not be cut, and when the gap becomes smaller, a collision may occur. Therefore, by setting the optical axis 18 and the second linear bearing 17, the first cutter 111 and the second cutter 112 can be prevented from deflecting when they move downward.

[0054] In order to prevent accidental touching of the first cutter 111 and the second cutter 112, the cutter assembly 1 also includes a right side plate 11, a left side plate 12, a rear guard plate 13, and a front guard plate assembly 14. The upper ends of the right side plate 11, the left side plate 12, the rear guard plate 13, and the front guard plate assembly 14 are all connected to the top plate 16, and the lower ends of the right side plate 11, the left side plate 12, and the rear guard plate 13 are all connected to the cutter bottom plate 15. The lower end of the front guard plate assembly 14 has a certain distance from the cutter bottom plate 15, so that the heat shrink tube 6 can be placed through this distance.

[0055] In a specific embodiment, the driving member A19, the driving member B281, the driving member C282, and the driving member D41 can all be cylinders.

[0056] The tensile test automatic marking device is used as follows:

[0057] 1. Adjustment stage: turn on the power switch 52, connect the air source, turn on the clamping switch 53, the driving part B281 pushes the front pressure connecting plate 271 to move backward along the first guide rod 241 and the second guide rod 242 to the position of the positive thread nut 35; the driving part C282 pushes the rear pressure plate 261 to move forward along the first guide rod 241 and the second guide rod 242 to the position of the negative thread nut 36; rotate the hand wheel 31 to drive the positive and negative thread screws 34 to rotate, adjust the positions of the positive thread nut 35 and the negative thread nut 36, and then adjust the distance between the front pressure plate 2914 and the rear pressure plate 261, and then heat shrink The tube 6 is placed between the front pressure plate 2914 and the rear pressure plate 261 to adapt the width size; after the adaptation is completed, the clamping switch 53 is closed, the driving component C282 drives the rear pressure plate 261 to open and return to its original position, and the driving component B281 drives the front pressure connecting plate 271 back to its original position. While the front pressure plate 2914 on the front pressure connecting plate 271 moves forward, the side follower bearing 2912 on the pad 2913 connected to it will move along the slide track on the left slide plate 22 and the right slide plate 21, thereby driving the front pressure plate 2914 to move downward to under the surface of the cutter base plate 15 during the opening process.

[0058] 2. Formal working stage: stack multiple heat shrink tubes 6 and place them at the positions of the first cutter 111 and the second cutter 112. Press the start button A511 and the start button B512 with both hands. The controller 54 will control the driver B281 and the driver C to act simultaneously. The driver C282 pushes the rear pressure plate 261 to move forward along the first guide rod 241 and the second guide rod 242 to the clamping position. The driver B281 pushes the front pressure connecting plate 271 to move backward to the clamping position. The front pressure plate 2914 on it moves along the slide track on the left slide plate 22 and the right slide plate 21 during the contraction process, rises and moves backward to the clamping position; the front pressure plate 2914 and the rear pressure plate 261 clamp the heat shrink tube 6 to the middle position of the cutter. Then, the driver D41 drives the lower pressure plate 43 to move downward to press the heat shrink tube 6. Next, the driving component A19 will push the cutter top plate 110 to move downward, thereby driving the first cutter 111 and the second cutter 112 to move vertically downward. The second cutter 112 cuts off one end of the heat shrink tube 6 to form a full cut position 61 for the heat shrink tube, and the first cutter 111 cuts half of the heat shrink tube 6 in the middle to form a half cut mark position 62 for the heat shrink tube; finally, the driving component A19 and the driving component D41 are reset in turn and drive the relevant components to reset, and then the driving component B281 and the driving component C282 simultaneously drive the front pressure connecting plate 271 and the rear pressure plate 261 to reset and take out the heat shrink tube 6.

[0059] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A tensile test automatic marking device for marking heat shrink tubing, characterized in that: include, roof; and Driving mechanism; and A cutter assembly, comprising a cutter top plate, a first cutter, a second cutter, and a cutter bottom plate; The first cutter and the second cutter are both connected to the cutter top plate, the first cutter is arranged on one side below the cutter top plate, and is used to partially cut one end of the heat shrink tube, and the second cutter is arranged on the other side below the cutter top plate, and is used to cut off the other end of the heat shrink tube; The cutter bottom plate is arranged below the first cutter and the second cutter at a distance, and holes are arranged on the cutter bottom plate; and A clamping assembly, the clamping assembly is arranged below the cutter assembly, and comprises a guide mechanism, a front pressure connecting plate, and a rear pressure plate; the front pressure connecting plate and the rear pressure plate slide along the guide mechanism under the action of the driving mechanism, and the sliding directions of the front pressure connecting plate and the rear pressure plate are away from each other or close to each other; the front pressure connecting plate is connected to the front pressure plate, the front pressure plate comprises a front clamping claw, the rear pressure plate comprises a rear clamping claw, and the front clamping claw and the rear clamping claw both extend through the hole to above the cutter bottom plate; and An electric control component, the electric control component includes a controller, and the controller is connected to the drive mechanism by signal; Among them, after turning on the tensile test automatic marking device, the heat shrink tube is placed between the front clamp and the rear clamp, and the controller controls the driving mechanism to move the front pressure connecting plate backward and the rear pressure plate forward until the front pressure plate and the rear pressure plate are both in contact with the heat shrink tube. Then, the driving mechanism moves the first cutter and the second cutter downward to cut and mark the heat shrink tube.

2. The tensile test automatic marking device according to claim 1, characterized in that: The driving mechanism includes a driving member A, a driving member B, and a driving member C. The driving member A is arranged above the top plate, and the output shaft of the driving member A is connected to the cutter top plate for controlling the up and down movement of the cutter top plate; the driving member B is arranged on the rear side below the cutter bottom plate, and the push rod of the driving member B is connected to the front pressure connecting plate; the driving member C is arranged on the rear side below the cutter bottom plate, and the push rod of the driving member C is connected to the rear pressure plate.

3. The tensile test automatic marking device according to claim 1, characterized in that: The clamping assembly also includes a positioning seat, which is arranged at both ends of the guide mechanism, the positioning seat is connected to the cutter bottom plate, and the guide mechanism is arranged below the cutter bottom plate through the positioning seat.

4. The tensile test automatic marking device according to claim 1, characterized in that: It also includes an adjustment component, which includes a base plate, a positive and negative thread screw assembly, a positive thread nut, and a negative thread nut; a guide groove is provided on the base plate, the positive and negative thread screw assembly is connected to the base plate, the positive thread nut is provided on the positive thread of the positive and negative thread screw assembly, and the negative thread nut is provided on the negative thread of the positive and negative thread screw assembly, and the positive thread nut and the negative thread nut both move along the guide groove as the positive and negative thread screw assembly rotates; wherein the front pressure connecting plate is provided on the outside of the positive thread nut, and the rear pressure plate is provided on the outside of the negative thread nut.

5. The automatic marking device for tensile testing according to claim 4, characterized in that: The forward and reverse thread screw assembly includes a forward and reverse thread screw and at least two seat bearings. The seat bearings are arranged on the bottom plate, and the two seat bearings are respectively arranged at both ends of the forward and reverse thread screw.

6. The automatic marking device for tensile testing according to claim 5, characterized in that: The adjustment assembly also includes a hand wheel and a clamping seat, the chuck of the clamping seat is connected to the forward and reverse threaded screw, the hand wheel is connected to the forward and reverse threaded screw, and the forward nut and the reverse nut are moved by rotating the hand wheel.

7. The tensile test automatic marking device according to claim 4, characterized in that: The positive thread nut and the negative thread nut are both equipped with a hydraulic buffer.

8. The tensile test automatic marking device according to claim 1, characterized in that: It also includes upper and lower movable components, which include the front pressure plate, pads, linear guides, side follower bearings, left slide plate, and right slide plate. The two ends of the front pressure plate are respectively arranged on the sliders of the two linear guides through two pads, and the two linear guides are respectively arranged at the two ends of the front pressure connecting plate; the two side follower bearings are respectively arranged on the two pads, and the side follower bearings are respectively arranged in the slide grooves of the left slide plate and the right slide plate, and the left slide plate and the right slide plate are both arranged between the cutter base plate and the base plate.

9. The tensile test automatic marking device according to claim 1, characterized in that: It also includes a pressing assembly, which includes a driving member D, a push plate, and a lower pressing plate. The driving member D is connected to the top plate and is arranged below the top plate. The driving member D is connected to the controller signal. The driving member D is connected to the push plate, and the push plate moves up and down under the driving member D. The lower pressing plate is connected to the push plate, and the lower pressing plate is located between the first cutter and the second cutter, and is used to flatten the heat shrink tube.

10. The tensile test automatic marking device according to claim 2, characterized in that: The cutter assembly also includes an optical axis, a second linear bearing, a first tool holder, a second tool holder, a cutting edge insert A, and a cutting edge insert B; the two optical axes are respectively arranged on both sides of the driving member A, the optical axis passes through the top plate and the lower end is connected to the cutter top plate; the second linear bearing is arranged on the outside of the optical axis, and the second linear bearing is connected to the top plate; the first tool holder is arranged on one side of the cutter top plate, and the cutter top plate is connected to the first cutter through the first tool holder; the second tool holder is arranged on the other side of the cutter top plate, and the cutter top plate is connected to the second cutter through the second tool holder; the cutting edge insert A is arranged on the cutter bottom plate and corresponds to the position of the first cutter; the cutting edge insert B is arranged on the cutter bottom plate and corresponds to the position of the second cutter.

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