CN215414654U - Test piece pre-joint cutting device - Google Patents

Abstract

The utility model relates to a test piece pre-cutting seam device, which is used for cutting a semicircular bent test piece and comprises a workbench, a moving frame, a lifting assembly, a rotating assembly and a cutting assembly; the cutting assembly is arranged on the workbench and used for cutting a test piece; the moving frame is slidably arranged on the workbench to be close to or far away from the cutting assembly along the X-axis direction; the lifting assembly comprises a lifting plate and a moving plate, the moving plate is movably arranged on the lifting plate to move along the Y-axis direction relative to the lifting plate, and the lifting assembly is movably arranged on the moving frame to lift along the Z-axis direction where the axial direction of the moving frame is located; the rotating assembly is rotatably arranged on the moving plate and is used for rotating in a YOZ plane, and the test piece is arranged between the rotating assembly and the lifting plate and rotates along with the rotation of the rotating assembly so as to realize multi-angle and multi-position cutting of the pre-cut seam of the test piece.

Description

Test piece pre-joint cutting device

Technical Field

The utility model relates to the technical field of road engineering, in particular to a test piece pre-cutting joint device.

Background

In recent years, with the rapid development of road engineering technology and asphalt pavement testing technology, experimental instruments matched with asphalt mixture test pieces and concrete test pieces are more and more perfect. However, the common special cutting machine for asphalt mixture test pieces on the market is generally used for cutting larger test pieces such as plate-type test pieces and cylinder test pieces.

For the prefabricated joint cuts at different positions and angles required by the fracture test of the bituminous mixture semicircular bending test piece, the common cutting machine cannot cut the bituminous mixture semicircular bending test piece at multiple angles and multiple positions.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a test piece pre-cutting seam device for cutting a semi-circular curved asphalt mixture test piece, which has a simple structure and is convenient to operate, and can perform multi-angle and multi-position cutting on the pre-cutting seam of the semi-circular curved test piece.

The utility model provides a test piece pre-joint cutting device which comprises a workbench, a moving frame, a lifting assembly, a rotating assembly and a cutting assembly, wherein the moving frame is arranged on the workbench;

the lifting assembly is movably arranged on the moving frame to lift along the axial direction of the moving frame, the rotating assembly is rotatably arranged on the lifting assembly, and the test piece is fixed on the rotating assembly;

the cutting assembly is arranged on the workbench and used for cutting a test piece; the moving frame is slidably arranged on the workbench to be close to or far away from the cutting assembly along the X-axis direction;

the lifting assembly comprises a lifting plate and a moving plate, the moving plate is movably arranged on the lifting plate to move along the Y-axis direction relative to the lifting plate, and the lifting assembly is movably arranged on the moving frame to lift along the Z-axis direction where the axial direction of the moving frame is located;

the rotating assembly is rotatably arranged on the moving plate and is used for rotating in a YOZ plane, and the test piece is arranged between the rotating assembly and the lifting plate and rotates along with the rotation of the rotating assembly so as to change the position of the test piece relative to the cutting assembly.

So set up, through will removing frame movably and set up in the workstation to drive lifting unit is close to or keeps away from cutting assembly along the X axle direction. The lifting plate of the lifting assembly drives the rotating assembly to move along the Z-axis direction, and the moving plate of the lifting assembly drives the rotating assembly to move along the Y-axis direction relative to the lifting plate. Through the setting of runner assembly to drive the test piece at the rotation in YOZ plane, and then make the test piece can be at the same time at the planar rotation of YOZ at X axle direction, the ascending removal in Z axle direction and the Y axle direction, can realize the cutting to the different angles of test piece and position.

In one embodiment, the rotating assembly comprises a fixed part and a rotating part, wherein the fixed part is movably arranged on the rotating part so as to fix the test piece on the rotating part and rotate along with the rotating part in a YOZ plane.

So set up, through being fixed in the mounting movably and rotating the piece to can adjust the mounting position when being fixed in the piece that rotates with the test piece, so that the fixed not unidimensional test piece of mounting.

In one embodiment, the moving plate is provided with a semicircular sliding groove, and the rotating member is provided with a semicircular sliding rail matched with the semicircular sliding groove, so that the rotating member is connected with the moving plate in a sliding manner.

So set up, through the cooperation between the semicircular spout that the movable plate was seted up and the slide rail that rotates the piece setting to make movable plate and rotation piece can sliding connection.

In one embodiment, the moving plate is provided with a dial, and the rotating member is provided with a pointer to fit the dial.

So set up, through be equipped with the calibrated scale on the movable plate, be equipped with the pointer on the rotation piece to make the user have the angle of reference at the pivoted in-process of adjustment rotation piece, convenience of customers is to test piece turned angle's adjustment.

In one embodiment, the rotating assembly further comprises a fastener for fastening or loosening the rotating member to the moving plate.

The arrangement is such that the position of the rotary member relative to the moving plate can be adjusted by the fastener.

In one embodiment, the moving plate is further provided with a moving position, and the moving position is used for adjusting the movement of the moving plate in the YOZ plane relative to the lifting plate.

In such an arrangement, the moving position is arranged on the moving plate, so that the moving plate can adjust the position relative to the lifting plate through the moving position, and the moving plate moves relative to the lifting plate in the YOZ plane.

In one embodiment, the lifting plate is provided with a lifting position, and the lifting plate is movably connected with the moving frame through the lifting position so as to move in the Z-axis direction.

So set up, through the lift position with lifter plate movably connect in remove the frame to make the lifter plate connect in can remove in the Z axle orientation when removing the frame.

In one embodiment, the cutting assembly comprises a saw blade and a motor, wherein the saw blade is arranged on the workbench and used for cutting a test piece;

the output shaft of the motor is connected with the saw blade to drive the saw blade to rotate.

So set up, through setting up the motor, with the output shaft of motor connection in the saw bit to promote the degree of automation of this test piece joint-cutting device in advance, convenient to use person's operation.

In one embodiment, the cutting assembly further comprises a lifting frame, the motor is installed on the lifting frame, and the lifting frame is used for controlling the lifting of the motor.

So set up, through setting up the crane to motor and motor output shaft's saw bit goes up and down, and then can adjust the saw bit to the degree of depth of test piece cutting.

In one embodiment, the worktable is provided with a moving frame sliding groove which is arranged in parallel with the saw blade, and the moving frame is provided with a sliding rail matched with the moving frame sliding groove.

So set up, through seting up the carriage spout at the workstation, be provided with the slide rail that matches with the carriage spout at the carriage to make the carriage be through carriage spout and slide rail and workstation sliding connection.

Drawings

Fig. 1 is a schematic structural diagram of a test piece pre-slitting device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the lifting plate of the embodiment shown in FIG. 1;

FIG. 3 is a schematic view of the moving plate of the embodiment of FIG. 1;

FIG. 4 is a schematic view of the rotary member of the embodiment of FIG. 1;

FIG. 5 is a schematic view of the embodiment of FIG. 1 with a part of the structure omitted;

fig. 6 is a schematic structural diagram of the cutting assembly of the embodiment of fig. 1.

Reference numerals: 10. a work table; 11. a moving rack chute; 20. a movable frame; 30. a lifting assembly; 31. a lifting plate; 311. lifting and lowering; 32. moving the plate; 321. moving the bit; 322. a semicircular chute; 323. a dial scale; 33. a tube level; 40. a rotating assembly; 41. a fixing member; 411. a vertical portion; 412. a bending section; 42. a rotating member; 421. a pointer; 422. a semicircular slide rail; 43. a fastener; 50. a cutting assembly; 51. a saw blade; 52. a motor; 53. a lifting frame; 531. and adjusting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

In the technical field of road engineering, fracture tests are often required to be carried out on asphalt mixture test pieces and concrete test pieces, and the special cutting device in the prior art is usually used for large test pieces such as plate-type test pieces and cylindrical test pieces or can cut semicircular bent test pieces, but cannot cut at multiple angles and multiple positions to influence the accuracy of the tests.

In view of the above technical problems, the present invention needs to provide a pre-cutting device, which can adjust the fixing position of a semi-circular bent test piece, change the position of the test piece relative to the cutting assembly 50, and further realize multi-angle and multi-position cutting of the test piece by the pre-cutting device.

For better description, as shown in fig. 1, the direction of the elevating movement of the elevating plate 31 is set as the Z-axis (i.e., vertical direction or up-down direction), the direction in which the moving frame 20 moves toward the saw blade 51 along the table 10 is set as the X-axis direction, and the direction perpendicular to the Z-axis and the X-axis is set as the Y-axis direction.

As shown in fig. 1, the precutting device provided by the present invention includes a working table 10, a moving frame 20, a lifting assembly 30, a rotating assembly 40 and a cutting assembly 50. The lifting assembly 30 is movably disposed on the moving frame 20 to lift along the axial direction of the moving frame 20, the rotating assembly 40 is rotatably disposed on the lifting assembly 30, and the test piece is fixed on the rotating assembly 40. The cutting assembly 50 is provided to the table 10 for cutting a test piece. The moving frame 20 is slidably disposed on the worktable 10 to move toward or away from the cutting assembly 50 along the X-axis direction, and is used for driving the lifting assembly 30 and the rotating assembly 40 to move toward or away from the cutting assembly 50 along the X-axis direction.

Further, the lifting assembly 30 includes a lifting plate 31 and a moving plate 32, the moving plate 32 is movably disposed on the lifting plate 31 to move along the Y-axis direction relative to the lifting plate 31, and the lifting assembly 30 is movably disposed on the moving frame 20 to lift along the Z-axis direction of the axial direction of the moving frame 20. The rotating assembly 40 is rotatably disposed on the moving plate 32 and is configured to rotate in the YOZ plane, and the test piece is disposed between the rotating assembly 40 and the lifting plate 31 and rotates along with the rotation of the rotating assembly 40 to change the position of the test piece relative to the cutting assembly 50.

It is understood that the moving frame 20 is movably disposed on the working platform 10 to move the lifting assembly 30 toward or away from the cutting assembly 50 along the X-axis direction. The rotating assembly 40 is driven to move along the Z-axis direction by the lifting plate 31 of the lifting assembly 30, and the rotating assembly 40 is driven to move along the Y-axis direction relative to the lifting plate 31 by the moving plate 32 of the lifting assembly 30. Through the setting of runner assembly 40 to drive the test piece at the rotation of YOZ plane, and then make the test piece can be at X axle direction, Z axle direction and the epaxial removal of Y axle and rotate in the YOZ plane simultaneously, realized that this test piece is joint-cutting device in advance to the cutting of test piece different angles and position.

Further, the table 10 is substantially square and has a moving rack chute 11. The two moving frame sliding grooves 11 are arranged along the X-axis direction and are respectively parallel to the positions of the saw blades 51. Further, the movable frame 20 is a long rectangle, two in number, and includes a slide rail. The slide rails of the movable frame 20 are vertically connected to the rectangular strip, the slide rails of the movable frame 20 can be matched with the movable frame slide grooves 11 and can slide relatively, and the slide rails of the two movable frames 20 are respectively arranged in the two movable frame slide grooves 11. Preferably, balls are disposed at the bottom of the moving frame sliding groove 11, so as to improve the moving convenience of the moving frame 20. The workbench 10 is provided with the moving frame sliding groove 11, and the moving frame 20 is provided with a sliding rail matched with the moving frame sliding groove 11, so that the moving frame 20 can be slidably connected with the workbench 10 through the sliding rail of the moving frame sliding groove 11 and the moving frame 20.

As shown in fig. 1 to 3, the lifting assembly 30 includes a lifting plate 31 and a moving plate 32. Specifically, the lifting plate 31 is substantially rectangular, and the two ends of the lifting plate 31 are respectively provided with a lifting position 311 matched with the moving frame 20, and for convenience of understanding, one of the moving frames 20 and the lifting position 311 are selected for description. The lifting position 311 is sleeved on the movable frame 20 to realize a sliding connection with the movable frame 20. The elevation position 311 is used to adjust the movement of the moving plate 32 in the Z-axis direction relative to the table 10 so that the elevation plate 31 can be elevated in the Z-axis direction relative to the table 10. It should be noted that the side wall of the lifting position 311 of the lifting plate 31 is provided with a threaded hole, so that the lifting plate 31 can be fixed and loosened relative to the moving frame 20 by screwing or unscrewing the nut, and further the lifting plate 31 can be adjusted relative to the moving frame 20. The shape of the lifting position 311 is not limited, and the present invention may be matched with the shape of the moving frame 20.

Further, in order to facilitate the user to keep the elevation positions 311 on the same plane with respect to both ends of the elevation plate 31, the tube level 33 may be provided on the elevation plate 31. It will be appreciated that the present invention is not limited to the placement of the tube level 33, as long as it is convenient for the user to view.

Further, the lifting assembly 30 further includes a moving plate 32, and the moving plate 32 is provided with a moving position 321 and a semicircular sliding groove 322. In the present embodiment, the moving position 321 is a long through hole, and the moving position 321 is used for adjusting the movement of the moving plate 32 relative to the lifting plate 31 in the YOZ plane. It should be noted that the lifting plate 31 is correspondingly threaded with respect to the moving position 321, and a nut is used to pass through the moving position 321 and is screwed to the lifting plate 31, so that the moving plate 32 can be movably fixed to the lifting plate 31. Since the moving position 321 is elongated for adjusting the nut, the position of the moving position relative to the lifting plate 31 can be changed, and the moving plate 32 can move relative to the lifting plate 31 in the YOZ plane. In order to more firmly fix the moving plate 32 to the lifting plate 31, the present embodiment provides two moving positions 321, and correspondingly, two screw holes are provided in the lifting plate 31.

In addition, the moving plate 32 is further provided with a semicircular sliding groove 322, and the semicircular sliding groove 322 is arranged below the moving plate 32 and is used for slidably connecting the rotating assembly 40. It should be noted that, in order to facilitate the movement of the moving plate 32 relative to the lifting plate 31 in the Y-axis direction for the user, scales may be further provided on the lifting plate 31 to facilitate the user to observe the relative positions of the moving plate 32 and the lifting plate 31.

As shown in fig. 5, the rotating assembly 40 includes a rotating member 42, a fixed member 41, and a fastening member 43. The rotating member 42 is provided with a slide rail that engages with the semicircular slide groove 322 of the moving plate 32. The semicircular slide rail 422 is embedded in the semicircular slide groove 322 and can slide relative to the semicircular slide groove 322, so that the rotating member 42 is slidably connected with the moving plate 32. Specifically, the semicircular sliding groove 322 is a T-shaped groove, and the semicircular sliding rail 422 is a T-shaped convex rail, so that the semicircular sliding rail 422 can be firmly installed in the semicircular sliding groove 322, the clamping effect of the semicircular sliding groove 322 and the semicircular sliding rail 422 is improved, and the reliability of the pre-sewing device is also improved. It is understood that the semicircular sliding groove 322 may be disposed on the rotating member 42, and the semicircular sliding rail 422 may be disposed on the moving plate 32, as long as the sliding connection between the two can be realized. In addition, the semicircular slide rail 422 is further opened with a threaded hole for mounting the fixing member 41.

As shown in fig. 1 to 4, the fixing member 41 is movably mounted to the rotating member 42 to fix the test piece to the rotating member 42, and the rotating member 42 is rotated in the YOZ plane. By movably fixing the fixing part 41 to the rotating part 42, the position of the fixing part 41 can be adjusted while the test piece is fixed to the rotating part 42, so that the fixing part 41 can fix test pieces with different sizes. Specifically, the fixed member 41 is substantially "L" shaped, and includes a vertical portion 411 and a bent portion 412, where the vertical portion 411 is provided with a long-strip-shaped kidney-shaped hole in the Z-axis direction, so as to fix the fixed member 41 to the rotating member 42 by using a nut to pass through the kidney-shaped hole and to be screwed with the rotating member 42. The elongated kidney-shaped holes facilitate the movement of the fixing member 41. The bending portion 412 of the fixing member 41 is used for bearing a test piece, and the vertical portion 411, the bending portion 412, the semicircular slide rail 422 of the moving plate 32 and the side wall of the lifting plate 31 facing the vertical portion 411 form an accommodating space for accommodating the test piece.

It can be understood that, when the test piece is placed above the bending part 412, the test piece is also placed in the accommodating space, and the height of the vertical part 411 along the Z-axis direction is adjusted by loosening the nut so as to adapt to test pieces with different sizes. When the test piece is attached to the semicircular slide rail 422 and the bending part 412, the fixing of the fixing member 41 to the test piece can be completed by screwing the nut. And then the semi-circular slide rail 422 is rotated by a certain angle in the YOZ plane, so that the rotation angle of the test piece can be adjusted. To ensure that the semicircular sled 422 remains stationary after rotating a certain angle in the YOZ plane, the rotating assembly 40 further includes a fastener 43 to secure the sled to the movable plate 32 via the fastener 43.

In the present embodiment, the fastener 43 fixes the semicircular slide rail 422 to the semicircular slide groove 322 by means of a nut. Specifically, a threaded hole is formed in the side wall of the moving plate 32, a nut can be used to penetrate through the threaded hole, and the nut is screwed to abut against the semicircular sliding rail 422, so that the semicircular sliding rail 422 is fixed to the semicircular sliding groove 322. Meanwhile, the semicircular sliding groove 322 also provides a supporting force for the semicircular sliding rail 422, so that the semicircular sliding rail 422 is firmly arranged in the semicircular sliding groove 322. When the angle of the semicircular slide rail 422 relative to the semicircular slide groove 322 needs to be adjusted, the nut is separated from the semicircular slide rail 422 by loosening the nut. And then the relative movement between the semicircular sliding rail 422 and the semicircular sliding groove 322 can be realized, so as to adjust the position of the semicircular sliding rail 422 relative to the semicircular sliding groove 322. It is understood that the fastening member 43 may be in other forms as long as the fastening member 43 can conveniently fix and separate the semicircular slide rail 422 and the semicircular slide groove 322 by the user.

It should be noted that, in order to facilitate the adjustment of the rotation angle of the test piece by the user, the moving plate 32 is provided with a scale 323, and the rotating member 42 is provided with a pointer 421 to fit the scale 323. By providing the dial 323 on the moving plate 32 and the pointer 421 on the rotating member 42, the user has a reference angle in adjusting the rotation of the rotating member 42.

Specifically, when the pre-cut slit of the test piece is required to be cut at an angle of 10 degrees. As shown in fig. 1-4, the fastener 43 is loosened to allow relative movement of the semicircular slide 422 with respect to the semicircular slide slot 322. And observing the position of the pointer 421 of the semicircular slide rail 422 corresponding to the dial 323 by 10 degrees, adjusting the rotary semicircular slide rail 422 to the position of the semicircular slide groove 322 corresponding to 10 degrees, and screwing the fastener 43 after the adjustment is finished so as to fix the semicircular slide rail 422 to the semicircular slide groove 322 and obtain the angle 10 degrees required by the pre-cutting of the test piece. The test piece after the angle adjustment is completed can be cut by pushing the moving frame 20 to the cutting assembly 50. When the test piece is required to be pre-cut at an angle of 80 degrees, the semicircular slide rail 422 is adjusted to the position of 80 degrees corresponding to the semicircular slide groove 322 according to the operation. When the pre-cutting slit of the test piece needs to be cut at an angle of 90 degrees, the semicircular slide rail 422 is adjusted to the 90-degree position corresponding to the semicircular slide groove 322 according to the operation. Therefore, the device realizes the cutting of the angle pre-cutting seam required by the test piece, is simple to operate and can adjust the required angle in time.

As shown in fig. 5 to 6, the cutting assembly 50 includes a saw blade 51, a motor 52 and a lifting frame 53, the saw blade 51 is disposed on the worktable 10 for cutting a test piece; the motor 52 is mounted on the mounting frame below the working table 10, and the output shaft of the motor 52 is connected to the saw blade 51 to drive the saw blade 51 to rotate. By arranging the motor 52, the output shaft of the motor 52 is connected to the saw blade 51, so that the automation degree of the test piece pre-slitting device is improved, and the operation of a user is facilitated. The lifting frame 53 is also provided with an adjusting lever 531 for adjusting the height of the lifting frame 53. Through setting up crane 53 to the adjustment motor 52 goes up and down with the saw bit 51 of motor 52 output shaft, and then can adjust the relative degree of depth to the test piece cutting of saw bit 51, with the degree of depth that can adjust the test piece and be cut.

To better describe the use of the pre-slitting device for the test piece in this embodiment and the use of the test piece with a semicircular bend, please refer to fig. 1 to 6 together.

When a test piece with an irregular shape needs to be cut and the test piece needs to be cut at multiple angles and multiple positions. Firstly, a test piece is placed on the L-shaped fixing member 41, the test piece is supported by the bending portion 412, and then the fixing member 41 is moved in the Z-axis direction, so that the test piece can be abutted against the inner wall of the semicircular slide rail 422 without shaking, and at this time, the nut can be screwed to fix the test piece in the accommodating space defined by the semicircular slide rail 422, the fixing member 41 and the lifting plate 31.

Secondly, the movable plate 32 and the semicircular slide rail 422 can be adjusted according to the pre-cutting angle and the position of the required cutting, and the specific mode is as follows: the height of the lifting plate 31 is roughly adjusted according to the cutting depth required by the pre-cutting seam of the test piece, the side wall nuts of the lifting positions 311 are unscrewed so that the lifting positions 311 can slide relative to the moving frame 20, when the lifting positions 311 are adjusted to the proper height, the tube level 33 is observed to ensure that the lifting plate 31 is in a horizontal state, and then the lifting positions 311 are screwed to fix the lifting plate 31. When the pre-cutting seam position of the test piece in the Y-axis direction needs to be cut, the nut on the moving position 321 is loosened to enable the moving plate 32 and the lifting plate 31 to move relatively, the dial 323 on the readable and moving plate 32 on the lifting plate 31 is used for reference, the position of the moving plate 32 relative to the lifting plate 31 in the Y-axis direction is adjusted as required, and the nut is screwed to fix the moving plate 32 on the lifting plate 31 after the adjustment is completed. When the test piece needs to be cut at the pre-cutting slit position with different angles on the YOZ plane, the fastening piece 43 is unscrewed to enable the semicircular slide rail 422 to generate relative movement relative to the semicircular slide groove 322, the relative position between the semicircular slide rail 422 and the semicircular slide groove 322 is adjusted by rotating the semicircular slide rail 422, the scale of the dial 323 on the movable plate 32 and the scale of the semicircular slide rail 422 are used as references in the adjustment process, and the fastening piece 43 can be screwed after the adjustment is finished so that the semicircular slide rail 422 is fixed on the semicircular slide groove 322. Thereby completing the adjustment of the required cutting angle and position of the test piece.

Finally, the motor 52 is started to push the moving frame 20 to move in the X-axis direction to cut the test piece, and when the depth of the pre-cut seam of the test piece needs to be adjusted, the adjusting rod 531 on the lifting frame 53 can be adjusted to raise or lower the motor 52, so as to achieve the purpose of increasing or reducing the depth of the pre-cut seam.

It can be understood that, for test pieces of different shapes and different requirements of pre-cutting seam angles, positions and depths, the rotating assembly, the lifting assembly and the cutting assembly can be adaptively operated according to actual needs, and the operation mode is only one of the operation modes.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a test piece is joint-cutting device in advance for cut semicircle curved test piece, its characterized in that includes:

the cutting machine comprises a workbench (10), a moving frame (20), a lifting assembly (30), a rotating assembly (40) and a cutting assembly (50);

the lifting assembly (30) is movably arranged on the moving frame (20) to lift along the axial direction of the moving frame (20), the rotating assembly (40) is rotatably arranged on the lifting assembly (30), and the test piece is fixed on the rotating assembly (40);

the cutting assembly (50) is arranged on the workbench (10) and used for cutting a test piece; the moving frame (20) is slidably arranged on the workbench (10) to approach or depart from the cutting assembly (50) along the X-axis direction;

the lifting assembly (30) comprises a lifting plate (31) and a moving plate (32), the moving plate (32) is movably arranged on the lifting plate (31) to move along the Y-axis direction relative to the lifting plate (31), and the lifting assembly (30) is movably arranged on the moving frame (20) to lift along the Z-axis direction of the axial direction of the moving frame (20);

the rotating assembly (40) is rotatably arranged on the moving plate (32) and is used for rotating in a YOZ plane, and the test piece is arranged between the rotating assembly (40) and the lifting plate (31) and rotates along with the rotation of the rotating assembly (40) so as to change the position of the test piece relative to the cutting assembly (50).

2. The specimen pre-lancing device according to claim 1, wherein the rotating assembly (40) includes a fixed member (41) and a rotating member (42), the fixed member (41) being movably secured to the rotating member (42) to secure the specimen to the rotating member (42) to follow rotation of the rotating member (42) in the YOZ plane.

3. The test piece pre-slitting device according to claim 2, wherein the moving plate (32) is provided with a semicircular sliding groove (322), and the rotating member (42) is provided with a semicircular sliding rail (422) which is matched with the semicircular sliding groove (322) so that the rotating member (42) is slidably connected with the moving plate (32).

4. The specimen pre-slitting device according to claim 3, wherein the moving plate (32) is provided with a scale (323), and the rotating member (42) is provided with a pointer (421) to fit the scale (323).

5. The test piece pre-lancing device according to claim 2, wherein the rotating assembly (40) further includes fasteners (43), the fasteners (43) being used to tighten or loosen a rotating member (42) to the moving plate (32).

6. The test piece pre-slitting device according to claim 1, wherein the moving plate (32) further has a moving position (321), and the moving position (321) is used for adjusting the movement of the moving plate (32) in the YOZ plane relative to the lifting plate (31).

7. The specimen pre-slitting device according to claim 1, wherein the lifting plate (31) is provided with a lifting position (311), and the lifting plate (31) is movably connected to the moving frame (20) through the lifting position (311) so that the lifting plate (31) moves in the Z-axis direction.

8. The specimen pre-slitting device according to claim 1, wherein the cutting assembly (50) includes a saw blade (51) and a motor (52), the saw blade (51) being provided to the table (10) for cutting a specimen;

the output shaft of the motor (52) is connected to the saw blade (51) to drive the saw blade (51) to rotate.

9. The specimen pre-slitting device according to claim 8, wherein the cutting assembly (50) further comprises a crane (53), the motor (52) being mounted to the crane (53), the crane (53) being configured to control the elevation of the motor (52).

10. The specimen pre-slitting device according to claim 8, wherein the worktable (10) is provided with a moving rack sliding groove (11), the moving rack sliding groove (11) is arranged in parallel with the saw blade (51), and the moving rack (20) is provided with a sliding rail matched with the moving rack sliding groove (11).

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