A precision and durability research and development test device and test method for unfolded cutting tools

Abstract

The present invention relates to the technical field of tool equipment testing, and in particular to a precision and durability research and development testing equipment and a testing method for deployable tools, which solve the shortcomings existing in the prior art. The testing equipment comprises a testing table, a rotating disk body, a vibration control mechanism and a testing mechanism. A fixing groove is provided on the testing table, and a fixed box one and a fixed box two arranged adjacently are installed on the testing table. A driving assembly is also arranged inside the fixed box one and the fixed box two. A protective shell is arranged on the end wall of the fixed box one away from the fixed box two. One end of the driving assembly passes through the protective shell and contacts with the inner wall. A control panel with a PLC controller is also installed on the testing table. The rotating disk body is installed on the output end of the driving assembly. A tool handle is installed on the rotating disk body, and a blade is arranged on the tool handle. Compared with the prior art, the present invention can effectively simulate the actual working state and test the precision and durability of the deployable tool.

Description

Technical Field

[0001] The present invention relates to the technical field of tool equipment testing, and in particular to a precision and durability research and development testing device for a deployable tool and a testing method thereof. Background Art

[0002] An unfolded tool refers to a tool whose cutting part can be unfolded or adjusted as needed during the cutting process to adapt to the processing requirements of workpieces of different shapes and sizes, so that the unfolded tool needs to have characteristics such as flexibility, high efficiency and high precision. In the processing process of the unfolded tool, it is usually installed on a flat disc, and then the flat disc is installed on the machine tool for operation. Therefore, the requirements for accuracy and durability of the tool during use after installation are relatively high. Otherwise, if the blade becomes loose when installed on the flat disc as the working time increases, it is easy to cause damage to the blade or damage to the product. However, in the actual working process, the vibration of the machine tool will affect the tool on the flat disc through the transmission effect between the parts, which will then become one of the hidden dangers that affect the processing accuracy and durability of the tool. However, the current testing equipment is only based on the relevant tests on the tool body, and cannot simulate the test results of the tool loosening stability caused by the vibration of the machine tool during the actual working process.

[0003] Therefore, it is necessary to provide a precision and durability research and development test equipment and a test method for deployable cutting tools to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a precision and durability research and development testing device and a testing method for an expandable tool, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A precision and durability research and development test equipment for an expandable tool, comprising a test bench, a flat rotating disk, a vibration control mechanism and a test mechanism, wherein a fixing slot is provided on the test bench, and a fixing box 1 and a fixing box 2 arranged adjacent to each other are installed on the test bench, a driving assembly is further arranged penetrating the interiors of the fixing box 1 and the fixing box 2, a protective shell is arranged on the end wall of the fixing box 1 away from the fixing box 2, and one end of the driving assembly penetrates the protective shell and contacts the inner wall;

[0007] A control panel with a PLC controller is also installed on the test bench;

[0008] The flat rotating disc body is installed on the output end of the driving assembly, a knife handle is installed on the flat rotating disc body, and a blade is arranged on the knife handle;

[0009] The vibration control mechanism includes a control component, a top ball and a swing arm. A cavity is opened inside the test bench on one side of the fixed groove. The control component is arranged in the cavity, and two top balls are arranged on the top of the control component. The control component can realize the alternating movement adjustment of the top balls on both sides in the vertical direction. A fixed seat is arranged on the test bench below the protective shell. Two swing arms are arranged and both are rotatably arranged between the inner walls of the fixed seat through shaft connection. An impact roller is installed on the other end of the swing arm. The impact rollers on both sides can alternately collide with the outer surface of the protective shell, so as to simulate the effect of the vibration transmission of the machine tool on the flat rotating disk in actual work. The top ball moves below the swing arm on the same side.

[0010] The testing mechanism comprises a moving plate, an adjusting block, an adjusting ring seat and a counterweight plate;

[0011] The movable plate moves in the fixed groove through a linear motor, and two shaft seats are arranged on the movable plate, and a fixed shaft 2 is arranged between the shaft seats on both sides, the adjusting block slides on the fixed shaft 2, and a compression spring is arranged on one side of the adjusting block, and a pressure sensor which is in contact with the compression spring is arranged on the side wall of one of the shaft seats, a fixed shaft 3 is arranged on the top surface of the adjusting block, the adjusting ring seat moves on the fixed shaft 3, and the adjusting ring seat is connected with a tool housing and a connecting block, a side frame is arranged on one side wall of the adjusting block, the counterweight plate slides and adjusts along the vertical direction of the side frame, and a connecting rope is arranged between the adjusting block and the counterweight plate, and a tension spring is arranged between the adjusting block and the side frame, and a distance sensor is arranged on the surface of the side frame opposite to the counterweight plate.

[0012] In one embodiment, a base is installed on the test bench along its length direction, the fixing box 1 and the fixing box 2 are both arranged on the base, and the protective shell is fixed to the fixing box 1 by plugging;

[0013] The driving assembly includes a rotating motor, an electric cylinder, a telescopic sleeve, a shaft cylinder and a connecting seat;

[0014] The rotating motor 1 is installed on the vertical side wall of the fixed box 2, and a synchronous wheel 1 is arranged on the output shaft of the rotating motor 1;

[0015] The electric cylinder is also installed on the vertical side wall of the fixed box 2 and is located below the rotating motor 1. The shaft cylinder that can rotate and contact with the electric cylinder is arranged on the output shaft of the electric cylinder. The shaft cylinder passes through the fixed box 1 and the protective shell and can rotate or slide and contact with them respectively. The telescopic sleeve is arranged on the outside of the output shaft of the electric cylinder and rotates and contacts with it. The telescopic sleeve includes a main sleeve and a secondary sleeve, one end of the secondary sleeve always slides between the inner walls of the main sleeve, and the other end of the secondary sleeve is connected to the shaft cylinder. A synchronous wheel 2 that rotates synchronously with the main sleeve is installed on the outside of the main sleeve, and a synchronous belt is connected between the synchronous wheel 1 and the synchronous wheel 2. A support seat that rotates and contacts with the synchronous wheel is installed on the inner bottom wall of the fixed box 2 below the synchronous wheel 2. The connecting seat is an "I"-shaped structure and is installed on the other end of the shaft cylinder. The rotating disk body is installed on the connecting seat.

[0016] In one embodiment, the control assembly includes a transmission disc, a driving disc, an adjustment disc, and a lifting bar;

[0017] A rotating motor 2 is installed between the inner walls of the test bench below the cavity, a synchronous shaft is installed on the end of the output shaft of the rotating motor 2, and a transmission disc of an "I" type structure is provided on the output shaft of the rotating motor 2, the transmission disc can be slidably adjusted along the output shaft of the rotating motor 2, the adjustment disc is provided on one side of the transmission disc and can rotate between the inner side walls of the transmission disc, an electric push rod is also installed on the bottom wall of the cavity below the adjustment disc, a support 1 is installed on the top surface of the transmission disc, a support 2 is installed on the bottom surface of the drive disc, and a transmission handle is provided between the support 1 and the support 2 through an axis connection;

[0018] A vertically arranged fixing frame is installed between the inner walls of the cavity, and the fixing frame is arranged in a "U"-shaped structure. The lifting bar slides between the side walls of the fixing frame, and a top rod is installed on the top wall of the lifting bar, and the top ball is installed on the top of the top rod;

[0019] A linkage member is also provided between the driving disk and the lifting bar, and the linkage member includes two connecting balls, which are connected as a whole through a connecting shaft, and the two connecting balls are respectively provided between the inner walls of the driving disk and the inner walls of the lifting bar in a rotatable connection.

[0020] In one embodiment, top grooves are respectively provided on the upper sides of the cavity on the test bench, a fixed shaft 1 is provided between the inner walls of the top groove along its length direction, a sliding seat with a "convex" structure is slidably provided between the side walls of the top groove, the fixed shaft 1 penetrates the sliding seat and is in sliding contact with the sliding seat, and an adjusting spring is installed on the fixed shaft 1, and the adjusting spring is fixed between one side wall of the sliding seat and one side inner wall of the top groove;

[0021] The impact roller is rotatably connected to the swing arm by an axial connection, and a linkage handle is installed between the slide seat and the side wall of the swing arm on the same side by an axial connection. In addition, the top ball moves in a vertical direction under the swing arm on the same side. When the top ball moves upward and contacts the swing arm, it can drive the swing arm to move upward and hit the protective shell to generate vibration transmission.

[0022] In one embodiment, a dovetail-shaped vertical groove is provided on the vertical side wall of the side frame, a dovetail-shaped slider is installed on the side wall at one end of the counterweight plate in contact with the side frame, the slider slides between the inner walls of the vertical groove, and a fixed pulley is installed between the inner walls of the side frame, a connecting bolt 2 is provided in the middle of the bottom wall of the adjustment block, a connecting bolt 1 is provided on the top surface of the side frame in the vertical direction, a tension spring is installed between the connecting bolt 1 and the connecting bolt 2, and a connecting rope is also connected to the connecting bolt, and the other end of the connecting rope passes through the fixed pulley and is connected and fixed to the top surface of the counterweight plate;

[0023] An external power supply 1 is installed on the top surface of the moving plate, and the external power supply 1 is connected to the pressure sensor through a wire. An external power supply 2 is installed on the side frame, and the external power supply 2 is connected to the distance sensor through a wire. Both the external power supply 1 and the external power supply 2 are connected to the PLC controller through electrical signals.

[0024] In one embodiment, when there is a looseness between the blade and the handle in the horizontal direction, the blade drives the adjusting ring seat to rotate and adjust on the fixed shaft three through the tool housing fixed thereto, so that the tension spring is pulled, and the connecting rope is pulled to the rotating side, so that the counterweight plate is displaced in the vertical direction, and the value detected by the distance sensor changes at this time;

[0025] When looseness occurs between the blade and the handle in the vertical direction, the blade drives the adjustment ring seat to slide and adjust in the vertical direction on the fixed axis three through the tool housing fixed thereto, so that the adjustment block adjusts its horizontal position on the fixed axis two accordingly, thereby changing the force of the compression spring acting on the pressure sensor, and causing the value detected on the pressure sensor to change at this time.

[0026] A testing method for developing a precision and durability testing device for a deployable tool comprises the following steps:

[0027] S1. First, install the flat rotating disc body on the connecting seat, install the knife handle at the corresponding position on the flat rotating disc body, and then assemble the blade onto the knife handle;

[0028] S2. Then, the electric cylinder is started to make the connecting seat drive the flat rotating disc to adjust its position. At the same time, the linear motor also cooperates to adjust the position of the movable plate so that the relative position of the flat rotating disc and the movable plate remains unchanged. After adjusting to the desired position, the tool stops and the blade and the tool housing are connected and fixed together.

[0029] S3, then, start the rotating motor 1, so that the flat rotating disc body starts to drive the blade to rotate, and also start the rotating motor 2, so that it drives the synchronous shaft to start rotating output, and when necessary, start the electric push rod to control the position of the adjusting disc, thereby changing the position of the transmission disc, and change the inclination state of the driving disc on the synchronous shaft through the transmission handle, and then drive the driving disc to rotate synchronously through the rotation of the synchronous shaft, and control the alternating lifting and lowering movement of the lifting bars on both sides under the action of the linkage parts on both sides, so that the top balls on both sides continuously drive the swing arms above them alternately, and the impact rollers on the swing arms continuously hit the protective shell back and forth, and transmit the vibration to the flat rotating disc body through the contact effect between the protective shell and the shaft cylinder, so as to simulate the vibration transmission effect of the machine tool on the flat rotating disc body during actual working process;

[0030] S4. Finally, as the blade continues to rotate, the adjustment block also continuously slides and adjusts on the fixed axis 2, and a certain position is set as a fixed detection position. When the blade moves to this position, the values ​​detected by the pressure sensor and the distance sensor are recorded and compared through the program. This change trend is used to detect the processing accuracy and durability of the blade after it is installed on the flat rotating disk.

[0031] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0032] By setting up a vibration control mechanism and a testing mechanism, the position of the transmission disk is adjusted to change the inclination of the drive disk on the synchronous shaft, and then the height difference of the lifting bars on both sides is controlled by the linkage parts on both sides, so that the top balls on both sides can be controlled to alternately drive the impact rollers on the swing arm to impact the protective shell above it, and then the contact state between the protective shell and the shaft cylinder is used to transmit vibration, so that the blade on the rotating disk body can simulate the influence of the vibration transmission of the machine tool during the actual working process, and then, the compression spring and the tension spring on the testing mechanism are adjusted to change, so that when the blade is loose in different opposite directions, the stability of the installation of the blade and the rotating disk body can be detected by the change of the state of the compression spring and the tension spring, so as to judge the accuracy and durability of the unfolded tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0034] In the attached picture:

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a cross-sectional schematic diagram of the central axis along the width direction of the test bench of the present invention;

[0037] Figure 3 It is a schematic diagram of the connection and driving between the synchronous wheel 1, the synchronous wheel 2 and the flat rotating disk body of the present invention;

[0038] Figure 4 is a schematic structural diagram of the vibration control mechanism of the present invention;

[0039] Figure 5 yes Figure 4 Schematic diagram of the main structure;

[0040] Figure 6 It is a schematic diagram of the testing mechanism of the present invention.

[0041] In the figure: 1, test bench; 11, fixing groove; 12, base; 13, cavity; 2, fixing box 1; 21, protective shell; 3, fixing box 2; 31, rotating motor 1; 311, synchronous wheel 1; 32, electric cylinder; 33, telescopic sleeve; 331, synchronous wheel 2; 34, shaft cylinder; 35, connecting seat; 36, supporting seat; 4, vibration control mechanism; 41, rotating motor 2; 411, transmission plate; 412, driving plate; 42, electric push rod; 421, adjusting plate; 43, fixing frame; 44, lifting strip; 441, push rod; 442, linkage; 45, fixing seat ;46. Swing arm;461. Impact roller;47. Slide seat;471. Linkage handle;48. Fixed axis one;5. Rotating disk;6. Testing mechanism;61. Moving plate;611. External power supply one;62. Shaft seat;621. Fixed axis two;622. Pressure sensor;63. Adjustment block;64. Side frame;641. External power supply two;642. Distance sensor;643. Counterweight plate;644. Connecting bolt one;65. Fixed axis three;66. Adjustment ring seat;661. Tool housing;662. Connecting block;6621. Connecting bolt two;67. Compression spring;68. Tension spring. DETAILED DESCRIPTION

[0042] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0043] like Figure 1-2 As shown, the present invention provides a technical solution: a precision and durability research and development test equipment for deployable tools, comprising a test bench 1, a drive assembly, a rotating disk body 5, a vibration control mechanism 4 and a test mechanism 6, a fixing groove 11 is provided on the top surface of the test bench 1, the fixing groove 11 is arranged along the width direction of the test bench 1, and a base 12 and a control panel with a PLC controller are also installed on the top surface of the test bench 1 by bolts, and a fixing box 1 2 and a fixing box 2 3 are installed on the base 12, the fixing box 1 2 is arranged horizontally, and the fixing box 2 3 is arranged vertically, wherein a protective shell 21 is inserted on the end wall of the fixing box 1 2 away from the fixing box 2 3, and a driving assembly is arranged between the fixing box 1 2 and the fixing box 2 3, and the rotating disk body 5 is installed on the output end of the driving assembly, and a strip-shaped installation groove 1 and a plurality of circular installation grooves 2 are provided on the rotating disk body 5, and an installation strip (or a plurality of circular installation grooves 2) are slidably arranged between the inner walls of the installation groove 1 by means of threaded transmission. It is realized by a linear reciprocating drive mechanism of other prior arts, as long as the position change of the mounting strip can be realized, the specific structure will not be described in detail). A tool handle can be installed on the mounting strip, and a blade is installed on the end of the tool handle by a screw. The tool handle can be directly installed in the mounting groove 2 and the blade can be installed on the tool handle. The end of the driving component connected to the rotating disk body 5 passes through the protective shell 21 and contacts the inner wall of the protective shell 21. The rotation and telescopic adjustment of the rotating disk body 5 can be realized by the control of the driving component. The vibration control mechanism 4 is arranged below the protective shell 21. The testing mechanism 6 slides between the side walls of the fixed groove 11 along the length direction of the test bench 1. The two sides of the protective shell 21 are continuously reciprocated by the vibration control mechanism 4. The vibration transmission effect in the contact state is used to simulate the vibration effect of the machine tool on the rotating disk body 5 during operation, so that the test results of accuracy and durability are reflected by the numerical changes of the pressure sensor 622 and the distance sensor 642 on the testing mechanism 6.

[0044] like Figure 3 As shown, the driving assembly includes a rotating motor 31, an electric cylinder 32, a telescopic sleeve 33, a shaft cylinder 34 and a connecting seat 35;

[0045] The rotating motor 31 and the electric cylinder 32 are respectively installed on one side of the vertical side wall of the fixed box 2 3 by bolts. The rotating motor 31 is located above the electric cylinder 32. A synchronous wheel 311 is provided on the output shaft of the rotating motor 31 through a key connection. A shaft cylinder 34 is connected to the output shaft of the electric cylinder 32 to rotate with it (the end of the output shaft connected to the shaft cylinder 34 is arranged in a "T" shape structure). The shaft cylinder 34 penetrates the fixed box 2 and rotates or slides between the inner walls of the fixed box 2, and the shaft cylinder 34 also penetrates the protective shell 21 and rotates or slides with it. A telescopic sleeve 33 is provided on the output shaft of the electric cylinder 32 to rotate with it. The telescopic sleeve 33 includes a main shaft sleeve and a secondary shaft sleeve. The main shaft The two ends of the sleeve rotate between the inner walls of the fixed box 2 3 through bearings, and a synchronous wheel 2 331 is provided on the main shaft sleeve through a key connection, a synchronous belt is connected between the synchronous wheel 1 311 and the synchronous wheel 2 331, and a support seat 36 is installed on the inner bottom wall of the fixed box 2 3 by screws, and the synchronous wheel 2 331 rotates between the inner walls of the support seat 36. One end of the auxiliary shaft sleeve slides between the inner walls of the main shaft sleeve by a key connection and the two are never separated. The auxiliary shaft sleeve and the output shaft of the electric cylinder 32 can rotate or slide in contact, and the other end of the auxiliary shaft sleeve is connected to the shaft cylinder 34 as a whole. A connecting seat 35 with an "I" type structure is installed on the other end of the shaft cylinder 34 by screws, and the rotating disk body 5 is fixed to the connecting seat 35 by screws.

[0046] It should be further explained that by starting the electric cylinder 32, the output shaft of the electric cylinder 32 is telescopically adjusted, so that the linear movement of the shaft cylinder 34 is synchronously controlled through the "T"-shaped end connected to the shaft cylinder 34, so as to control the position of the rotating disk body 5 in the axial direction. When the electric cylinder 32 is working, the secondary shaft sleeve will slide and adjust along the inner wall of the main shaft sleeve synchronously with the movement of the shaft cylinder 34; by starting the rotating motor 31, its output shaft drives the synchronous wheel 1 311 to rotate, and drives the synchronous wheel 2 331 to rotate and adjust through the action of the synchronous belt, and then controls the rotation adjustment of the telescopic sleeve 33 in a key connection manner, thereby realizing the rotation drive of the shaft cylinder 34, so as to control the rotation adjustment of the rotating disk body 5.

[0047] like Figure 4-5 As shown, the vibration control mechanism 4 includes a control assembly, a fixed seat 45, a swing arm 46 and a slide seat 47; the control assembly includes a transmission disk 411, a driving disk 412, an adjustment disk 421 and a lifting bar 44;

[0048] A cavity 13 is provided in the test bench 1, an electric push rod 42 is installed on the bottom wall of the cavity 13 by screws, an adjusting disk 421 is connected to the end of the output shaft of the electric push rod 42, a rotating motor 41 is installed between the inner walls of the test bench 1 by screws, a transmission disk 411 which rotates synchronously with the output shaft of the rotating motor 41 is provided, and the transmission disk 411 can be slidably adjusted on the output shaft of the rotating motor 41 by key connection, the transmission disk 411 is arranged in an "I"-shaped structure, and the adjusting disk 421 rotates on the transmission shaft. Between the inner walls of the moving disk 411, and the output shaft of the rotating motor 2 41 is also connected to a synchronous shaft that rotates synchronously therewith, and two symmetrical connecting grooves are opened on the outer surface of the synchronous shaft, and a driving disk 412 that contacts and cooperates with the synchronous shaft is sleeved between the connecting grooves on both sides, and the driving disk 412 is arranged in an "I"-shaped structure, and a support 1 is installed on the top surface of the transmission disk 411 by screws, and a support 2 is installed on the bottom surface of the driving disk 412 by screws, and a transmission handle is installed between the support 1 and the support 2 by means of an axial connection.

[0049] A vertically arranged fixing frame 43 is installed between the inner walls of the cavity 13 by screws, and the fixing frame 43 is in a "U"-shaped structure. A lifting bar 44 is slidably arranged between the side walls of the fixing frame 43, and a top rod 441 is fixed on the top wall of the lifting bar 44 by screws. A top ball is installed on the top of the top rod 441 by threaded connection (the bottom of the top ball is connected to a threaded rod), wherein a linkage member 442 is movably connected between the driving disk 412 and the lifting bar 44, and the linkage member 442 includes two connecting balls, and a connecting shaft fixed thereto as a whole is inserted between the two connecting balls, one of the connecting balls rotates between the inner walls of the driving disk 412, and the other connecting ball rotates between the inner walls of the lifting bar 44.

[0050] Two top grooves are provided on the test bench 1, and a fixed shaft 48 is fixed between the inner walls of the top grooves through a key connection. A sliding seat 47 with a "convex" structure is slidably arranged on the outer surface of the fixed shaft 48, and the sliding seat 47 also slides between the side walls of the top grooves. An adjusting spring is also sleeved on the fixed shaft 48, and one end of the adjusting spring is fixed on the inner wall of the top groove, and the other end is connected and fixed to the side wall of the sliding seat 47. A fixed seat 45 is installed at the middle position of the two top grooves by screws, and two relatively arranged swing arms 46 are rotatably arranged between the side walls of the fixed seat 45 through an axial connection, and an impact roller 461 is installed on the other end of the swing arm 46 through an axial connection, wherein the top ball on the same side is located below the swing arm 46 and can push the swing arm 46 upward to adjust the activity during the lifting and lowering process of the top ball, and a linkage handle 471 is installed between the sliding seat 47 and the side wall of the swing arm 46 through an axial connection.

[0051] It should be further explained that, by starting the electric push rod 42, it is made to control the height position of the adjustment disk 421, thereby driving the position of the transmission disk 411 on the output shaft of the rotating motor 2 41. When the adjustment disk 421 is at the lowest position, the support 1, the support 2 and the transmission handle are located in the same vertical direction, that is, the transmission handle is vertically set at this time. As the height position of the adjustment disk 421 is continuously increased, the driving disk 412 is controlled to be tilted and adjusted under the action of the transmission handle, so that there is a height difference between the lifting bars 44 on both sides at this time. Then, by starting the rotating motor 2 41, its output shaft drives the synchronous shaft to rotate, so that the driving disk 412 continuously rotates in a tilted state, and then the lifting bars 44 on both sides are driven to continuously and staggeredly lift and lower under the action of the linkage members 442 on both sides.

[0052] As the lifting bars 44 on both sides continuously and alternately move, the top balls on both sides alternately apply thrust to the swing arms 46 in contact therewith, thereby controlling the swing arms 46 on both sides to continuously drive the impact rollers 461 thereon to impact the protective shell 21, and then transmit the vibration through the protective shell 21 and the shaft cylinder 34 in the contact state, and transmit the vibration to the flat rotating disk body 5, so as to simulate the influence of the vibration of the machine tool on the flat rotating disk body 5 during the actual working process. When the swing arm 46 moves upward, it synchronously drives the linkage handle 471 to move, controls the slide 47 to move to the side where the adjusting spring is located, and applies a force to the adjusting spring, and when the top ball moves downward, the adjusting spring applies a reverse force to the slide 47, so that the slide 47 moves to the side away from the adjusting spring for adjustment, and drives the swing arm 46 to reset downward for adjustment under the action of the linkage handle 471, and the protective shell 21 is impacted and simulated vibration transmission is performed reciprocatingly.

[0053] like Figure 6 As shown, the testing mechanism 6 includes a moving plate 61, a second fixed shaft 621, a pressure sensor 622, an adjustment block 63, a side frame 64, a distance sensor 642 and an adjustment ring seat 66;

[0054] Two linear motors are installed between the inner walls of the test bench 1 on one side of the fixed slot 11. The output shaft end of the linear motor passes through the moving plate 61 and is connected to the moving plate 61 as a whole. The moving plate 61 slides on the bottom wall of the fixed slot 11 along the length direction of the test bench 1. Two shaft seats 62 are fixedly installed on the moving plate 61. A fixed shaft 621 is fixedly installed between the shaft seats 62 on both sides, and a pressure sensor 622 is fixedly embedded on the side wall surface of one of the shaft seats 62. The pressure sensor 622 and the PLC controller are connected through electrical signals. An adjustment block 63 is slidably arranged on the fixed shaft 621, and a compression spring 67 is sleeved on the fixed shaft 621. One end of the compression spring 67 is fixedly connected to the side wall of the adjustment block 63, and the other end of the compression spring 67 is fixedly connected to the side wall of the shaft seat 62 (that is, it is arranged in contact with the outer surface of the pressure sensor 622). An external power supply 611 is also installed on the top surface of the movable plate 61. The external power supply 611 is connected to the PLC controller through an electrical signal, and the external power supply 611 is connected to the pressure sensor 622 through a wire.

[0055] A side frame 64 is installed on one side wall of the adjustment block 63 by screws, and the side frame 64 is arranged in a "⊥" shape. A dovetail-shaped vertical groove is opened on the vertical side wall of the side frame 64, and a dovetail-shaped slider is slidably arranged between the inner walls of the vertical groove. A counterweight plate 643 is installed on the side wall of the slider by screws, and the counterweight plate 643 slides and adjusts along the vertical direction of the side frame 64. A distance sensor 642 is also installed on the side frame 64, and an external power supply 641 is installed on one side wall of the side frame 64. The external power supply 641 is connected to the PLC controller through an electrical signal, and the external power supply 641 is connected to the distance sensor 642 through a wire. The distance sensor 642 is arranged opposite to the bottom surface of the counterweight plate 643.

[0056] A fixed shaft three 65 is inserted in the middle of the top surface of the adjusting block 63, and an adjusting ring seat 66 is slidably arranged on the fixed shaft three 65. A tool housing 661 is installed on the outer surface of the adjusting ring seat 66 by means of threaded connection. The tool housing 661 matches the blade and can be fixed together by screws. A connecting block 662 is also installed on the outer surface of the adjusting ring seat 66 by means of shaft connection and fixation. A connecting bolt two 6621 is installed in the middle of the bottom wall of the connecting block 662 by means of threaded connection, and a connecting bolt one 644 is installed on the vertical top surface of the side frame 64 by means of threaded connection. A tension spring 68 is connected between the connecting bolt one 644 and the connecting bolt two 6621, and a connecting rope is tied to the outer surface of the connecting bolt two 6621, and the other end of the connecting rope passes through the vertical inner wall of the side frame 64 and extends to the top surface of the counterweight plate 643 and is tied and fixed thereto, wherein a fixed pulley (not shown in the figure) for adjusting the connecting rope is installed between the inner walls of the side frame 64.

[0057] Among them, the vertical installation position of the tool housing 661 and the vertical installation position of the connecting block 662 are at a 90-degree right angle, and when the connecting block 662 is in the initial state and its reset state, the connecting bolt 1 644 and the connecting bolt 2 6621 are both in the vertical center axis direction of the side frame 64.

[0058] It should be further explained that the blade is inserted into the tool housing 661 and fixed together, so that the movement of the blade can synchronously drive the adjustment ring seat 66 to move, and the adjustment ring seat 66 performs vertical lifting movement along the fixed shaft 3 65 while driving the adjustment block 63 to reciprocate linearly on the fixed shaft 2 621. During this movement, the compression spring 67 continuously changes the magnitude of the force acting on the pressure sensor 622 as the position of the adjustment block 63 changes. At the same time, the side frame 64 also moves synchronously with the movement of the adjustment block 63.

[0059] For the reciprocating continuous work of the flat rotating disc body 5, the processing accuracy of the blade installed on the flat rotating disc body 5 and the processing durability after the blade is installed are extremely important factors, and their accuracy and durability will be affected by the looseness of the blade. If there is a loose deviation, the processing quality will be affected. When the blade is loose, it will cause the blade to loosen on the horizontal plane where it is installed (if the installation gap is large, there will also be looseness in the vertical direction). The specific analysis is as follows:

[0060] State 1, when the looseness between the blade and the handle is generated in the horizontal direction, the blade will swing in a swinging manner on the horizontal plane where the blade is installed during the rotation of the flat rotating disk 5. The blade is controlled to stay at a certain position for many times through the control program, and the changes caused by the blade each time at this position are recorded. The looseness of the blade drives the adjustment ring seat 66 to deflect the angle of the fixed axis 3 65 through the tool housing 661, thereby causing the connecting block 662 to move to the deflected side together with the adjustment ring seat 66, and the movement of the adjustment ring seat 66 will drive the tension spring 68 to open, and will pull the counterweight plate 643 upward through the connecting rope, and the counterweight plate 643 will slide upward along the vertical side wall of the side frame 64. At this time, the distance detected by the distance sensor 642 will change in value;

[0061] State 2, when the blade is loose in the vertical direction due to the looseness between the handles, the blade will swing in the vertical plane where the blade is installed during the rotation of the flat rotating disk 5. The blade is controlled to stay at a certain position for many times through the control program, and the changes caused by the blade each time at this position are recorded. The looseness of the blade drives the adjustment ring seat 66 to perform vertical displacement movement on the fixed shaft three 65 through the tool housing 661. As the vertical height of the adjustment ring seat 66 changes each time it stays at the test position, the adjustment block 63 will also change its position in the horizontal direction of movement due to the height difference, which will cause the force applied by the compression spring 67 to the pressure sensor 622 in this state to change, thereby causing the pressure value detected by the pressure sensor 622 to change in value;

[0062] State 3: If both the above-mentioned state 1 and state 2 occur, then when staying at the test position, the values ​​on the pressure sensor 622 and the distance sensor 642 will change accordingly.

[0063] Through the analysis of the above situation, the test results of the flat rotating disc body 5 after the tool is installed are tested to reflect the relevant conditions of its accuracy and durability.

[0064] Working principle:

[0065] First, install the flat rotating disc body 5 on the connecting seat 35, and install the knife handle at the corresponding position on the flat rotating disc body 5, and then assemble the blade onto the knife handle;

[0066] Next, by starting the electric cylinder 32, the connecting seat 35 drives the flat rotating disc 5 to adjust its position. At the same time, the linear motor also cooperates to adjust the position of the movable plate 61, so that the relative position of the flat rotating disc 5 and the movable plate 61 remains unchanged. After adjusting to the desired position, it stops and the blade and the tool housing 661 are connected and fixed together.

[0067] Then, the rotary motor 1 31 is started to make the flat disc body 5 start to drive the blade to rotate, and the rotary motor 2 41 is also started to drive the synchronous shaft to start rotating output. When necessary, the electric push rod 42 is started to control the position of the adjustment disk 421, thereby changing the position of the transmission disk 411, and the transmission handle is used to change the inclination state of the driving disk 412 on the synchronous shaft, and then the rotation of the synchronous shaft drives the driving disk 412 to rotate synchronously, and under the action of the linkage members 442 on both sides, the alternating lifting and lowering movement of the lifting bars 44 on both sides is controlled, so that the top balls on both sides continuously and alternately drive the swing arms 46 above them, and the impact rollers 461 on the swing arms 46 continuously hit the protective shell 21 back and forth, and the vibration is transmitted to the flat disc body 5 through the contact effect between the protective shell 21 and the shaft cylinder 34, so as to simulate the vibration transmission effect of the machine tool on the flat disc body 5 during actual working process;

[0068] Finally, as the blade continues to rotate, the adjustment block 63 also continuously slides and adjusts on the fixed shaft 2 621, and a certain position is set as a fixed detection position. When the blade moves to this position, the values ​​detected by the pressure sensor 622 and the distance sensor 642 are recorded and compared through the program. This change trend is used to detect the processing accuracy and durability of the blade after it is installed on the rotating disk body 5.

[0069] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0070] The above is a detailed introduction to the precision and durability research and development test equipment and test method for deployable tools provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A precision and durability research and development test equipment for deployable cutting tools, characterized in that: include: A test bench (1), wherein a fixing groove (11) is formed on the test bench (1), and adjacent fixing boxes (2) and (3) are installed on the test bench (1), a driving assembly is also arranged inside the fixing boxes (2) and (3), a protective shell (21) is arranged on the end wall of the fixing box (2) away from the fixing box (3), and one end of the driving assembly passes through the protective shell (21) and contacts the inner wall; A control panel with a PLC controller is also installed on the test bench (1); A flat rotating disc body (5), the flat rotating disc body (5) being mounted on the output end of the driving assembly, a knife handle being mounted on the flat rotating disc body (5), and a blade being arranged on the knife handle; A vibration control mechanism (4), the vibration control mechanism (4) comprising a control component, a top ball and a swing arm (46); a cavity (13) is provided inside the test bench (1) on one side of the fixing groove (11); the control component is arranged in the cavity (13); and two top balls are arranged on the top of the control component; the top balls on both sides can be adjusted to alternately move in a vertical direction through the control component; a fixing seat (45) is arranged on the test bench (1) below the protective shell (21); two swing arms (46) are arranged and are rotatably arranged between the inner walls of the fixing seat (45) via an axis; an impact roller (461) is installed on the other end of the swing arm (46); the impact rollers (461) on both sides can alternately impact with the outer surface of the protective shell (21), thereby simulating the effect of the vibration transmission of the machine tool on the flat rotating disk (5) in actual work; and the top ball moves below the swing arm (46) located on the same side as the flat rotating disk (5); A testing mechanism (6), the testing mechanism (6) comprising a moving plate (61), an adjusting block (63), an adjusting ring seat (66), and a counterweight plate (643); The movable plate (61) moves in the fixed groove (11) through a linear motor, two shaft seats (62) are arranged on the movable plate (61), a fixed shaft 2 (621) is arranged between the shaft seats (62) on both sides, an adjustment block (63) slides on the fixed shaft 2 (621), a compression spring (67) is arranged on one side of the adjustment block (63), and a pressure sensor (622) for contact sensing with the compression spring (67) is arranged on the side wall of one of the shaft seats (62), a fixed shaft 3 (65) is arranged on the top surface of the adjustment block (63), an adjustment ring seat (66) moves on the fixed shaft 3 (65), and a tool housing (661) and a connecting block (662) are connected to the adjustment ring seat (66), a side frame (64) is arranged on one side wall of the adjustment block (63), and a counterweight plate (643) is arranged along the side The side frame (64) is slideably adjusted in the vertical direction. A connecting block (662) is installed on the outer surface of the adjusting ring seat (66) by means of shaft connection and fixing. A connecting bolt (6621) is installed in the middle of the bottom wall of the connecting block (662) by means of threaded connection. A connecting bolt (644) is installed on the vertical top surface of the side frame (64) by means of threaded connection. A tension spring (68) is connected between the connecting bolt (644) and the connecting bolt (6621). A connecting rope is tied on the outer surface of the connecting bolt (6621). The other end of the connecting rope passes through the vertical inner wall of the side frame (64) and extends to the top surface of the counterweight plate (643) and is tied and fixed thereto. A distance sensor (642) is arranged on the surface of the side frame (64) opposite to the counterweight plate (643).

2. The precision and durability research and development test equipment for deployable cutting tools according to claim 1, characterized in that: The test bench (1) is provided with a base (12) along its length direction, the fixing box 1 (2) and the fixing box 2 (3) are both arranged on the base (12), and the protective shell (21) and the fixing box 1 (2) are fixed by plugging; The driving assembly comprises a rotating motor (31), an electric cylinder (32), a telescopic shaft sleeve (33), a shaft cylinder (34) and a connecting seat (35); The rotating motor 1 (31) is mounted on the vertical side wall of the fixed box 2 (3), and a synchronous wheel 1 (311) is arranged on the output shaft of the rotating motor 1 (31); The electric cylinder (32) is also mounted on the vertical side wall of the fixed box (2) and is located below the rotating motor (31). The output shaft of the electric cylinder (32) is provided with a shaft cylinder (34) capable of rotationally contacting the output shaft. The shaft cylinder (34) penetrates the fixed box (2) and the protective shell (21) and is capable of rotationally or slidingly contacting the output shaft. The telescopic shaft sleeve (33) is arranged outside the output shaft of the electric cylinder (32) and is in rotationally contacting the output shaft. The telescopic shaft sleeve (33) includes a main shaft sleeve and a secondary shaft sleeve. One end of the secondary shaft sleeve is The auxiliary shaft sleeve finally slides between the inner walls of the main shaft sleeve, and the other end of the auxiliary shaft sleeve is connected to the shaft cylinder (34). A synchronous wheel 2 (331) is installed on the outside of the main shaft sleeve and rotates synchronously with the main shaft sleeve. A synchronous belt is connected between the synchronous wheel 1 (311) and the synchronous wheel 2 (331). A support seat (36) is installed on the inner bottom wall of the fixed box 2 (3) below the synchronous wheel 2 (331) and is in rotational contact with the synchronous wheel 2. The connecting seat (35) is in an "I"-shaped structure and is installed on the other end of the shaft cylinder (34). The flat rotating disc body (5) is installed on the connecting seat (35).

3. The precision and durability research and development test equipment for deployable cutting tools according to claim 2, characterized in that: The control assembly comprises a transmission disk (411), a drive disk (412), an adjustment disk (421) and a lifting bar (44); A second rotating motor (41) is installed between the inner walls of the test bench (1) below the cavity (13); a synchronous shaft is installed on the end of the output shaft of the second rotating motor (41); and a transmission disc (411) of an "I"-shaped structure is provided on the output shaft of the second rotating motor (41); the transmission disc (411) can be slidably adjusted along the output shaft of the second rotating motor (41); an adjustment disc (421) is provided on one side of the transmission disc (411) and can rotate between the inner side walls of the transmission disc (411); an electric push rod (42) is also installed on the bottom wall of the cavity (13) below the adjustment disc (421); a support seat (1) is installed on the top surface of the transmission disc (411); a support seat (2) is installed on the bottom surface of the drive disc (412); and a transmission handle is provided between the support seat (1) and the support seat (2) via an axis connection; A vertically arranged fixing frame (43) is installed between the inner walls of the cavity (13), the fixing frame (43) being arranged in a "U"-shaped structure, a lifting bar (44) sliding between the side walls of the fixing frame (43), a top rod (441) being installed on the top wall of the lifting bar (44), and a top ball being installed on the top of the top rod (441); A linkage member (442) is further provided between the driving disk (412) and the lifting bar (44), and the linkage member (442) comprises two connecting balls, the two connecting balls are connected as a whole via a connecting shaft, and the two connecting balls are respectively provided between the inner walls of the driving disk (412) and the inner walls of the lifting bar (44) in a rotatable manner.

4. The precision and durability research and development test equipment for deployable cutting tools according to claim 3, characterized in that: Top grooves are respectively provided on both sides of the upper side of the cavity (13) on the test bench (1); a fixed shaft (48) is provided between the inner walls of the top groove along its length direction; a sliding seat (47) with a "convex" structure is slidably provided between the side walls of the top groove; the fixed shaft (48) penetrates the sliding seat (47) and is in sliding contact with the sliding seat (47); and an adjustment spring is installed on the fixed shaft (48); the adjustment spring is fixed between one side wall of the sliding seat (47) and one side inner wall of the top groove; The impact roller (461) is rotatably connected to the swing arm (46) by means of an axial connection, and a linkage handle (471) is installed between the sliding seat (47) and the side wall of the swing arm (46) located on the same side by means of an axial connection. The top ball moves in a vertical direction below the swing arm (46) located on the same side. When the top ball moves upward and contacts the swing arm (46), it can drive the swing arm (46) to move upward and impact the protective shell (21) to generate vibration transmission.

5. The precision and durability research and development test equipment for deployable cutting tools according to claim 4, characterized in that: A dovetail-shaped vertical groove is provided on the vertical side wall of the side frame (64); a dovetail-shaped slider is installed on the side wall at one end of the counterweight plate (643) that contacts the side frame (64); the slider slides between the inner walls of the vertical groove; a fixed pulley is installed between the inner walls of the side frame (64); a second connecting bolt (6621) is provided in the middle of the bottom wall of the adjustment block (63); a first connecting bolt (644) is provided on the top surface of the side frame (64) in the vertical direction; a tension spring (68) is installed between the first connecting bolt (644) and the second connecting bolt (6621); a connecting rope is also connected to the connecting bolt; the other end of the connecting rope passes through the fixed pulley and is connected and fixed to the top surface of the counterweight plate (643); An external power source 1 (611) is installed on the top surface of the movable plate (61), and the external power source 1 (611) is connected to the pressure sensor (622) via a wire. An external power source 2 (641) is installed on the side frame (64), and the external power source 2 (641) is connected to the distance sensor (642) via a wire. Both the external power source 1 (611) and the external power source 2 (641) are connected to the PLC controller via electrical signals.

6. The precision and durability research and development test equipment for deployable cutting tools according to claim 5, characterized in that: When there is looseness between the blade and the handle in the horizontal direction, the blade drives the adjusting ring seat (66) to rotate and adjust on the fixed shaft three (65) through the tool housing (661) fixed thereto, so that the tension spring (68) is pulled, and the connecting rope is pulled toward the rotating side, so that the counterweight plate (643) is displaced in the vertical direction, and the value detected by the distance sensor (642) changes; When there is looseness between the blade and the handle in the vertical direction, the blade drives the adjustment ring seat (66) to slide and adjust in the vertical direction on the fixed shaft three (65) through the tool housing (661) fixed thereto, so that the adjustment block (63) adjusts its horizontal position on the fixed shaft two (621) accordingly, thereby causing the force of the compression spring (67) acting on the pressure sensor (622) to change, and causing the value detected by the pressure sensor (622) to change at this time.

7. A testing method for the precision and durability research and development testing equipment for deployable cutting tools according to claim 6, characterized in that: The following steps are involved: S1. First, install the flat rotating disc body (5) on the connecting seat (35), install the knife handle at the corresponding position on the flat rotating disc body (5), and then assemble the blade onto the knife handle; S2. Next, the electric cylinder (32) is started, so that the connecting seat (35) drives the flat rotating disc (5) to adjust its position. At the same time, the linear motor also cooperates to adjust the position of the movable plate (61), so that the relative position of the flat rotating disc (5) and the movable plate (61) remains unchanged. After adjusting to the desired position, the flat rotating disc (5) stops, and the blade and the tool housing (661) are connected and fixed together. S3, then, the rotating motor 1 (31) is started, so that the flat rotating disc (5) starts to drive the blade to rotate, and the rotating motor 2 (41) is also started, so that it drives the synchronous shaft to start rotating output, and when necessary, the electric push rod (42) is started to control the position of the adjustment disc (421), thereby changing the position of the transmission disc (411), and the transmission handle is used to change the inclination state of the driving disc (412) on the synchronous shaft, and then the driving disc (412) is driven to rotate synchronously with the rotation of the synchronous shaft, and the lifting bars (44) on both sides are controlled to alternately lift and lower under the action of the linkage parts (442) on both sides, so that the top balls on both sides continuously drive the swing arms (46) above them in an alternating manner, and the impact rollers (461) on the swing arms (46) continuously hit the protective shell (21) back and forth, and the vibration is transmitted to the flat rotating disc (5) through the contact effect between the protective shell (21) and the shaft cylinder (34), thereby simulating the vibration transmission effect generated by the machine tool on the flat rotating disc (5) during actual working process; S4. Finally, as the blade continues to rotate, the adjustment block (63) also continuously slides and adjusts on the fixed shaft (621), and a certain position is set as a fixed detection position. When the blade moves to this position, the values ​​detected by the pressure sensor (622) and the distance sensor (642) at this time are recorded and compared through a program. The processing accuracy and durability of the blade after being installed on the flat rotating disk (5) are detected based on this change trend.

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