A B-axis powered toolholder test bench that combines performance testing and cutting functions

Abstract

The present invention discloses a B-axis power tool holder test bench that takes into account both performance testing and cutting functions, and relates to the field of tool holder experimental devices, including a workbench, a first hard rail slide, a second hard rail slide, a third hard rail slide, a B-axis power tool holder, a simulated tool holder, a radial force loading component, an axial force loading component, a dynamometer component, a performance detection component, and a workpiece clamping component. The first hard rail slide is arranged on the top of the workbench, the second hard rail slide and the third hard rail slide are respectively arranged on the left and right sides of the workbench, the workpiece clamping component is fixedly connected to the third hard rail slide, the B-axis power tool holder is fixedly connected to the first hard rail slide, the axial force loading component and the dynamometer component are coaxially assembled and fixedly connected to the second hard rail slide, and the radial force loading component and the performance detection component are both installed on the workbench. The present invention has a compact structure and a reasonable layout, and integrates multi-dimensional force loading, performance detection, and real cutting functions.

Description

Technical Field

[0001] The present invention relates to the field of tool holder experimental devices, and in particular to a B-axis power tool holder test bench that combines performance testing and cutting functions. Background Art

[0002] In modern manufacturing, the reliability and adaptability of the B-axis driven toolholder to multiple operating conditions are crucial for high-precision, high-efficiency machining. The driven toolholder must withstand a variety of loads, including static loads, low-frequency high loads, medium- and high-frequency loads, and high-frequency loads. Traditional testing equipment struggles to simulate these complex operating conditions simultaneously.

[0003] Therefore, how to develop a B-axis power tool holder test bench that takes into account both performance testing and cutting functions, with a compact structure, reasonable layout, and integration of multi-dimensional force loading, performance testing and real cutting functions has become a technical problem that needs to be urgently solved by people in this field. Summary of the Invention

[0004] The purpose of the present invention is to provide a B-axis power tool holder test bench that takes into account both performance testing and cutting functions, has a compact structure, a reasonable layout, and integrates multi-dimensional force loading, performance testing and real cutting functions.

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

[0006] The present invention provides a B-axis power tool holder test bench that combines performance testing and cutting functions, comprising a workbench, a first hard rail slide, a second hard rail slide, a third hard rail slide, a B-axis power tool holder, a simulated tool holder, a radial force loading component, an axial force loading component, a dynamometer component, a performance detection component, and a workpiece clamping component;

[0007] The workbench is arranged in a stepped shape, the first hard rail slide is arranged on the top of the workbench, the second hard rail slide and the third hard rail slide are respectively arranged on the left and right sides of the workbench, the sliding directions of the second hard rail slide and the third hard rail slide are parallel to each other and perpendicular to the sliding direction of the first hard rail slide, the workpiece clamping assembly is fixedly connected to the third hard rail slide, the B-axis power tool holder is fixedly connected to the first hard rail slide, the axial force loading assembly and the dynamometer assembly are coaxially assembled and fixedly connected to the second hard rail slide, and the axial force loading assembly is arranged at one end close to the B-axis power tool holder, the axis of the electric spindle of the B-axis power tool holder, the axis of the axial force loading assembly, the axis of the dynamometer assembly and the axis of the working end of the workpiece clamping assembly are at the same height;

[0008] The radial force loading component and the performance detection component are both installed on the workbench and located between the first hard rail slide and the second hard rail slide. The working axes of the radial force loading component and the axial force loading component are perpendicular to each other and intersect at one point. One end of the simulated tool holder is fastened to the working end of the axial force loading component, and the other end of the simulated tool holder passes through the performance detection component and cooperates with the conical surface of the electric spindle of the B-axis power tool holder.

[0009] Preferably, the second hard rail slide includes a base, a slide, a reduction motor, a rack and a gear. The slide is slidably connected to the base through a guide rail pair. The axial force loading assembly and the dynamometer assembly are assembled and connected and installed on the upper part of the slide. The reduction motor is installed at one end of the slide close to the dynamometer assembly. The rack is fixedly connected to the base. The gear is fixedly connected to the power output end of the reduction motor, and the gear is meshed with the rack.

[0010] Preferably, the dynamometer assembly includes a dynamometer, a first coupling, a torque sensor, a second coupling, a transmission shaft, a speed sensor, a pad, a shield, a bearing seat and a flange. The dynamometer is mounted on the top of the skateboard, one end of the torque sensor is fixedly connected to the power output end of the dynamometer through the first coupling, and the other end of the torque sensor is fixedly connected to the transmission shaft through the second coupling. The pad is fixedly arranged on the top of the skateboard, the speed sensor is fixedly connected to and mounted on the pad, the speed sensor is located directly below the torque sensor, and the two are arranged in a close fit. The shield is mounted on the top of the skateboard, and the first coupling, torque sensor, second coupling, speed sensor and pad are all arranged inside the shield. The bearing seat is mounted on the top of the skateboard and assists the transmission shaft in stable rotation through an internal bearing assembly. The flange is fixedly connected to the side of the bearing seat away from the second coupling. The end of the transmission shaft away from the second coupling passes through the bearing seat and the flange in sequence and is transmission-connected to the axial force loading assembly.

[0011] Preferably, the axial force loading assembly includes an annular sensor, a spacer, a disc spring, a disc spring closing cover, an angular contact ball bearing sleeve, an angular contact ball bearing end cover, a locking nut, a first angular contact ball bearing, a second angular contact ball bearing, a spline rod, an annular gasket, an upper semicircular sleeve and a lower semicircular sleeve. The two ends of the annular sensor are respectively fixedly connected to the flange and the opposite surfaces of the spacer, and the end of the spacer away from the annular sensor is fixedly connected to the disc spring closing cover. The disc spring is sleeved between the spacer and the disc spring closing cover, and the upper semicircular sleeve and the lower semicircular sleeve are connected together. One end of the connection structure formed by them is fixedly connected to the flange and the spacer. One end is fixedly connected to the flange, and the other end is snap-connected to the outer circumference of the angular contact ball bearing sleeve, and the inner circumference of the angular contact ball bearing sleeve is fixedly connected to the angular contact ball bearing end cover. The first angular contact ball bearing and the second angular contact ball bearing are fitted and arranged inside the angular contact ball bearing sleeve and the angular contact ball bearing end cover, and the inner rings of the first angular contact ball bearing and the second angular contact ball bearing are press-fastened and fixed to the spline rod through a locking nut; one end of the spline rod is rotatably connected to the transmission shaft, and the other end of the spline rod is fixedly connected to the simulated tool handle through the annular gasket.

[0012] Preferably, the radial force loading assembly includes a convex support frame and a radial force loading device. The convex support frame is installed on the workbench and is located between the first hard rail slide and the second hard rail slide. The two radial force loading devices are respectively arranged on the top and side of the convex support frame.

[0013] Preferably, the radial force loading device includes an electric cylinder, a positioning sleeve, an end cover, a sliding sleeve, a roller mounting block, a first roller bearing group, a second roller bearing group, a push rod, a disc spring group, a force sensor front flange, a force sensor, a force sensor rear flange, a first core shaft, a second core shaft and a ball cage, the positioning sleeve is fastened to the convex support frame, the sliding sleeve is slidably connected to the inside of the positioning sleeve through the ball cage, the electric cylinder is fixedly mounted on the positioning sleeve, the end cover is fastened to the other end of the positioning sleeve, the push rod is mounted on the inside of the sliding sleeve, one end of the push rod is fixedly connected to the power output end of the electric cylinder, the other end of the push rod is connected to the roller mounting block by a screw, the disc spring group, the force sensor rear flange, the force sensor, and the force sensor front flange are sequentially mounted on the push rod in the axial direction, and the two ends of the force sensor front flange are respectively fixedly connected to the opposite surfaces of the force sensor and the roller mounting block, the first roller bearing group and the second roller bearing group are respectively mounted on the roller mounting block through the first core shaft and the second core shaft.

[0014] Preferably, the performance detection component is installed below the convex support frame and is located on a side away from the radial force loading device installed on the side; the performance detection component includes a displacement sensor bracket and a first displacement sensor, a second displacement sensor, a third displacement sensor, a fourth displacement sensor and a fifth displacement sensor installed on the displacement sensor bracket, the first displacement sensor and the second displacement sensor are used to measure the displacement change of the simulated tool handle in the vertical direction, and the axial direction of the first displacement sensor and the second displacement sensor is parallel to the axial direction of the radial force loading device installed on the top of the convex support frame; the third displacement sensor is used to measure the displacement change of the simulated tool handle in the axial direction, and the axis of the third displacement sensor is parallel to the working axis of the axial force loading component; the fourth displacement sensor and the fifth displacement sensor are used to measure the displacement change of the simulated tool handle in the horizontal direction, and the axial direction of the fourth displacement sensor and the fifth displacement sensor is parallel to the axial direction of the radial force loading device installed on the side of the convex support frame.

[0015] Preferably, the workpiece clamping assembly includes a chassis, a spindle and a three-jaw chuck, the chassis is fixedly connected to the third hard rail slide, the spindle is fixedly installed inside the chassis, and the power output end of the spindle passes through the side wall of the chassis and is fixedly connected to the three-jaw chuck.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The present invention provides a B-axis power tool holder test bench that takes into account both performance testing and cutting functions. It has a compact structure and a reasonable layout, and integrates multi-dimensional force loading, performance testing and real cutting functions. By changing the position of the B-axis power tool holder on the first hard rail slide, the performance testing and real cutting functions can be switched between each other. At the same time, the radial force loading component and the axial force loading component cooperate with each other to realize dynamic and static multi-dimensional cutting force loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a structural schematic diagram of a B-axis power tool holder test bench that combines performance testing and cutting functions during performance testing according to the present invention;

[0020] Figure 2 For the present invention Figure 1 A magnified view of the local structure at point A;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the axial force loading assembly of the present invention;

[0022] Figure 4is a schematic cross-sectional view of the radial force loading device of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the radial force loading component and the performance detection component of the present invention;

[0024] Figure 6 For the present invention Figure 5 A magnified view of the local structure at point B in the middle;

[0025] Figure 7 Schematic diagram of the explosion structure of the dynamometer assembly of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the workpiece clamping assembly of the present invention;

[0027] Figure 9 It is a schematic structural diagram of the present invention during cutting processing.

[0028] Explanation of reference numerals: 1. workbench; 2. first hard rail slide; 3. second hard rail slide; 301. base; 302. slide plate; 303. reduction motor; 304. rack; 305. gear; 4. third hard rail slide; 5. B-axis power tool holder; 6. simulated tool holder; 7. radial force loading assembly; 701. convex support frame; 702. radial force loading device; 70201. electric cylinder; 70202. positioning sleeve; 70203. end cover; 70204. sleeve 70205, roller mounting block; 70206, first roller bearing assembly; 70207, second roller bearing assembly; 70208, push rod; 70209, disc spring assembly; 70210, force sensor front flange; 70211, force sensor; 70212, force sensor rear flange; 70213, first mandrel; 70214, second mandrel; 70215, ball cage; 8, axial force loading assembly; 801, annular sensor; 802, spacer; 803, disc Spring; 804, disc spring closure cover; 805, angular contact ball bearing sleeve; 806, angular contact ball bearing end cover; 807, locking nut; 808, first angular contact ball bearing; 809, second angular contact ball bearing; 810, spline rod; 811, annular gasket; 812, upper semicircular sleeve; 813, lower semicircular sleeve; 9, dynamometer assembly; 901, dynamometer; 902, first coupling; 903, torque sensor; 904, second coupling; 905, transmission shaft; 90 6. Speed ​​sensor; 907. Spacer; 908. Protective cover; 909. Bearing seat; 910. Flange; 10. Performance detection assembly; 1001. Displacement sensor bracket; 1002. First displacement sensor; 1003. Second displacement sensor; 1004. Third displacement sensor; 1005. Fourth displacement sensor; 1006. Fifth displacement sensor; 11. Workpiece clamping assembly; 1101. Chassis; 1102. Spindle; 1103. Three-jaw chuck. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1-9 As shown, it includes a workbench 1, a first hard rail slide 2, a second hard rail slide 3, a third hard rail slide 4, a B-axis power tool holder 5, a simulated tool holder 6, a radial force loading component 7, an axial force loading component 8, a dynamometer component 9, a performance detection component 10 and a workpiece clamping component 11;

[0031] The workbench 1 is arranged in a stepped shape, the first hard rail slide 2 is arranged on the top of the workbench 1, the second hard rail slide 3 and the third hard rail slide 4 are respectively arranged on the left and right sides of the workbench 1, the sliding directions of the second hard rail slide 3 and the third hard rail slide 4 are parallel to each other and perpendicular to the sliding direction of the first hard rail slide 2, the workpiece clamping assembly 11 is fixedly connected to the third hard rail slide 4, the B-axis power tool holder 5 is fixedly connected to the first hard rail slide 2, the axial force loading assembly 8 and the dynamometer assembly 9 are coaxially assembled and fixedly connected to the second hard rail slide 3, and the axial force loading assembly 8 is arranged at one end close to the B-axis power tool holder 5, and the axis of the electric spindle of the B-axis power tool holder 5, the axis of the axial force loading assembly 8, the axis of the dynamometer assembly 9 and the axis of the working end of the workpiece clamping assembly 11 are at the same height;

[0032] The radial force loading component 7 and the performance detection component 10 are both installed on the workbench 1 and located between the first hard rail slide 2 and the second hard rail slide 3. The working axes of the radial force loading component 7 and the axial force loading component 8 are perpendicular to each other and intersect at one point. One end of the simulated tool handle 6 is fastened to the working end of the axial force loading component 8, and the other end of the simulated tool handle 6 passes through the performance detection component 10 and cooperates with the electric spindle tapered surface of the B-axis power tool holder 5.

[0033] Specifically, the second hard rail slide 3 and the axial force loading assembly 8 together constitute an axial force loading module, the axial force loading module, the radial force loading assembly 7 and the dynamometer assembly 9 together constitute a loading module, the workpiece clamping assembly 11 and the third hard rail slide 4 together constitute a real processing module, and the first hard rail slide 2 can drive the B-axis power tool holder 5 to switch between the loading module and the real processing module.

[0034] Specifically, the second hard rail slide 3 includes a base 301, a slide 302, a reduction motor 303, a rack 304 and a gear 305. The slide 302 is slidably connected to the base 301 through a guide rail pair. The axial force loading component 8 and the dynamometer component 9 are assembled and connected and installed on the upper part of the slide 302. The reduction motor 303 is installed at one end of the slide 302 close to the dynamometer component 9. The rack 304 is fixedly connected to the base 301. The gear 305 is fixedly connected to the power output end of the reduction motor 303, and the gear 305 is meshed with the rack 304.

[0035] Specifically, the dynamometer assembly 9 includes a dynamometer 901, a first coupling 902, a torque sensor 903, a second coupling 904, a transmission shaft 905, a speed sensor 906, a pad 907, a shield 908, a bearing seat 909 and a flange 910. The dynamometer 901 is installed on the top of the slide 302, one end of the torque sensor 903 is fixedly connected to the power output end of the dynamometer 901 through the first coupling 902, and the other end of the torque sensor 903 is fixedly connected to the transmission shaft 905 through the second coupling 904. The pad 907 is fixedly set on the top of the slide 302, the speed sensor 906 is fixedly connected to the pad 907, and the speed sensor The sensor 906 is located directly below the torque sensor 903, and the two are arranged in a close fit. The shield 908 is installed on the top of the skateboard 302, and the first coupling 902, the torque sensor 903, the second coupling 904, the speed sensor 906, and the pad 907 are all arranged inside the shield 908. The bearing seat 909 is installed on the top of the skateboard 302, and assists the transmission shaft 905 to rotate stably through the internal bearing assembly. The flange 910 is fixedly connected to the side of the bearing seat 909 away from the second coupling 904. The end of the transmission shaft 905 away from the second coupling 904 passes through the bearing seat 909 and the flange 910 in sequence and is then connected to the axial force loading assembly 8 for transmission.

[0036] Specifically, the axial force loading assembly 8 includes an annular sensor 801, a spacer sleeve 802, a disc spring 803, a disc spring closing cover 804, an angular contact ball bearing sleeve 805, an angular contact ball bearing end cover 806, a locking nut 807, a first angular contact ball bearing 808, a second angular contact ball bearing 809, a spline rod 810, an annular gasket 811, an upper semicircular sleeve 812 and a lower semicircular sleeve 813. The two ends of the annular sensor 801 are fixedly connected to the flange 910 and the opposite surfaces of the spacer sleeve 802 respectively. The end of the spacer sleeve 802 away from the annular sensor 801 is fixedly connected to the disc spring closing cover 804. The disc spring 803 is internally sleeved between the spacer sleeve 802 and the disc spring closing cover 804. The upper semicircular sleeve 812 and the lower semicircular sleeve 813 are connected together. One end of the connection structure is fixedly connected to the flange 910, and the other end is engaged with the outer peripheral side of the angular contact ball bearing sleeve 805. The inner peripheral side of the angular contact ball bearing sleeve 805 is fixedly connected to the angular contact ball bearing end cover 806. The first angular contact ball bearing 808 and the second angular contact ball bearing 809 are fitted and arranged inside the angular contact ball bearing sleeve 805 and the angular contact ball bearing end cover 806, and the inner rings of the first angular contact ball bearing 808 and the second angular contact ball bearing 809 are press-fastened and fixed to the spline rod 810 through a locking nut 807; one end of the spline rod 810 is rotatably connected to the transmission shaft 905, and the other end of the spline rod 810 is fixedly connected to the simulated tool handle 6 through the annular gasket 811.

[0037] Specifically, the radial force loading assembly 7 includes a convex support frame 701 and a radial force loading device 702. The convex support frame 701 is installed on the workbench 1 and is located between the first hard rail slide 2 and the second hard rail slide 3. The two radial force loading devices 702 are respectively arranged on the top and side of the convex support frame 701.

[0038] Specifically, the radial force loading device 702 includes an electric cylinder 70201, a positioning sleeve 70202, an end cover 70203, a sliding sleeve 70204, a roller mounting block 70205, a first roller bearing group 70206, a second roller bearing group 70207, a push rod 70208, a disc spring group 70209, a force sensor front flange 70210, a force sensor 70211, a force sensor rear flange 70212, a first core shaft 70213, a second core shaft 70214 and a ball cage 70215. The positioning sleeve 70202 is fastened to the convex support frame 701, the sliding sleeve 70204 is slidably connected to the inside of the positioning sleeve 70202 through the ball cage 70215, the electric cylinder 70201 is fixedly mounted on the positioning sleeve 70202, and the end cover 70203 is fastened to the positioning sleeve 70202. At the other end, the push rod 70208 is installed inside the sleeve 70204, one end of the push rod 70208 is fixedly connected to the power output end of the electric cylinder 70201, and the other end of the push rod 70208 is connected to the roller mounting block 70205 by a screw, and the disc spring group 70209, the force sensor rear flange 70212, the force sensor 70211, and the force sensor front flange 70210 are sequentially sleeved and installed on the push rod 70208 along the axial direction, and the two ends of the force sensor front flange 70210 are respectively fixedly connected to the opposite surfaces of the force sensor 70211 and the roller mounting block 70205, and the first roller bearing group 70206 and the second roller bearing group 70207 are respectively installed on the roller mounting block 70205 through the first core shaft 70213 and the second core shaft 70214.

[0039] Specifically, the performance detection component 10 is installed below the convex support frame 701 and is located on a side away from the radial force loading device 702 installed on the side; the performance detection component 10 includes a displacement sensor bracket 1001 and a first displacement sensor 1002, a second displacement sensor 1003, a third displacement sensor 1004, a fourth displacement sensor 1005 and a fifth displacement sensor 1006 installed on the displacement sensor bracket 1001, the first displacement sensor 1002 and the second displacement sensor 1003 are used to measure the displacement change of the simulated tool handle 6 in the vertical direction, and the first displacement sensor 1002, the second displacement sensor 1003, the third displacement sensor 1004, the fourth displacement sensor 1005 and the fifth displacement sensor 1006 are used to measure the displacement change of the simulated tool handle 6 in the vertical direction. The axial direction of the sensor 1003 is parallel to the axial direction of the radial force loading device 702 installed on the top of the convex support frame 701; the third displacement sensor 1004 is used to measure the displacement change of the simulated tool handle 6 in the axial direction, and the axis of the third displacement sensor 1004 is parallel to the working axis of the axial force loading assembly 8; the fourth displacement sensor 1005 and the fifth displacement sensor 1006 are used to measure the displacement change of the simulated tool handle 6 in the horizontal direction, and the axial direction of the fourth displacement sensor 1005 and the fifth displacement sensor 1006 are parallel to the axial direction of the radial force loading device 702 installed on the side of the convex support frame 701.

[0040] Specifically, the workpiece clamping assembly 11 includes a chassis 1101, a spindle 1102 and a three-jaw chuck 1103. The chassis 1101 is fixedly connected to the third hard rail slide 4, and the spindle 1102 is fixedly installed inside the chassis 1101. The power output end of the spindle 1102 passes through the side wall of the chassis 1101 and is fixedly connected to the three-jaw chuck 1103.

[0041] The use process of the present invention is as follows:

[0042] By changing the position of the B-axis power tool holder 5 on the first hard rail slide 2 and adjusting the angle of the B-axis power tool holder 5, when the electric spindle of the B-axis power tool holder 5 is aligned with the moving direction of the second hard rail slide 3 along the axis, that is, when the axis direction of the electric spindle of the B-axis power tool holder 5 is collinear with the axis direction of the axial force loading component 8, a multi-dimensional force loading test and performance test can be carried out on the B-axis power tool holder 5 in this position;

[0043] Change the position of the B-axis power tool holder 5 on the first hard rail slide 2 again, and adjust the angle of the B-axis power tool holder 5 so that the axial direction of the electric spindle of the B-axis power tool holder 5 is collinear with the moving direction of the third hard rail slide 4. Drive the workpiece clamping assembly 11 with the workpiece to move toward the direction close to the B-axis power tool holder 5 through the third hard rail slide 4. Install the required cutting tool at the end of the B-axis power tool holder 5, and carry out real cutting tests of turning, milling, drilling and boring.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A B-axis powered toolholder test bench that combines performance testing and cutting functions, characterized by: It includes a workbench (1), a first hard rail slide (2), a second hard rail slide (3), a third hard rail slide (4), a B-axis power tool holder (5), a simulated tool holder (6), a radial force loading component (7), an axial force loading component (8), a dynamometer component (9), a performance detection component (10) and a workpiece clamping component (11); The workbench (1) is arranged in a stepped shape, the first hard rail slide (2) is arranged on the top of the workbench (1), the second hard rail slide (3) and the third hard rail slide (4) are respectively arranged on the left and right sides of the workbench (1), the sliding directions of the second hard rail slide (3) and the third hard rail slide (4) are parallel to each other and perpendicular to the sliding direction of the first hard rail slide (2), the workpiece clamping assembly (11) is fixedly connected to the third hard rail slide (4), the B-axis power tool holder (5) is fixedly connected to the first hard rail slide (2), the axial force loading assembly (8) and the dynamometer assembly (9) are coaxially assembled and fixedly connected to the second hard rail slide (3), and the axial force loading assembly (8) is arranged at one end close to the B-axis power tool holder (5), and the axis of the electric spindle of the B-axis power tool holder (5), the axis of the axial force loading assembly (8), the axis of the dynamometer assembly (9) and the axis of the working end of the workpiece clamping assembly (11) are at the same height; The radial force loading component (7) and the performance detection component (10) are both installed on the workbench (1) and located between the first hard rail slide (2) and the second hard rail slide (3); the working axes of the radial force loading component (7) and the axial force loading component (8) are perpendicular to each other and intersect at one point; one end of the simulated tool holder (6) is fastened to the working end of the axial force loading component (8); and the other end of the simulated tool holder (6) passes through the performance detection component (10) and then cooperates with the electric spindle conical surface of the B-axis power tool holder (5); By changing the position of the B-axis power tool holder (5) on the first hard rail slide (2) and adjusting the angle of the B-axis power tool holder (5), when the electric spindle of the B-axis power tool holder (5) is aligned with the moving direction of the second hard rail slide (3) along the axis, that is, when the axis direction of the electric spindle of the B-axis power tool holder (5) is collinear with the axis direction of the axial force loading component (8), a multi-dimensional force loading test and a performance test can be carried out on the B-axis power tool holder (5) at this position; The position of the B-axis power tool holder (5) on the first hard rail slide (2) is changed again, and the angle of the B-axis power tool holder (5) is adjusted so that the axis direction of the electric spindle of the B-axis power tool holder (5) is collinear with the moving direction of the third hard rail slide (4). The workpiece clamping assembly (11) is driven by the third hard rail slide (4) to move the workpiece toward the direction close to the B-axis power tool holder (5). The required cutting tool is installed at the end of the B-axis power tool holder (5), and then the real cutting test of turning, milling, drilling and boring can be carried out.

2. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 1, characterized in that: The second hard rail slide (3) comprises a base (301), a slide (302), a reduction motor (303), a rack (304) and a gear (305); the slide (302) is slidably connected to the base (301) via a guide rail pair; the axial force loading assembly (8) and the dynamometer assembly (9) are assembled and connected and then mounted on the upper part of the slide (302); the reduction motor (303) is mounted on one end of the slide (302) close to the dynamometer assembly (9); the rack (304) is fixedly connected to the base (301); the gear (305) is fixedly connected to the power output end of the reduction motor (303), and the gear (305) is meshed with the rack (304).

3. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 2, characterized in that: The dynamometer assembly (9) comprises a dynamometer (901), a first coupling (902), a torque sensor (903), a second coupling (904), a transmission shaft (905), a speed sensor (906), a pad (907), a shield (908), a bearing seat (909) and a flange (910), wherein the dynamometer (901) is mounted on the top of the slide (302), one end of the torque sensor (903) is fixedly connected to the power output end of the dynamometer (901) through the first coupling (902), and the other end of the torque sensor (903) is fixedly connected to the transmission shaft (905) through the second coupling (904), the pad (907) is fixedly arranged on the top of the slide (302), the speed sensor (906) is fixedly connected to the pad (907), and the speed sensor (909) is fixedly connected to the pad (907). The sensor (906) is located directly below the torque sensor (903), and the two are arranged in close contact. The shield (908) is installed on the top of the slide (302), and the first coupling (902), the torque sensor (903), the second coupling (904), the speed sensor (906), and the pad (907) are all arranged inside the shield (908). The bearing seat (909) is installed on the top of the slide (302) and assists the transmission shaft (905) to rotate stably through the internal bearing assembly. The flange (910) is fixedly connected to the side of the bearing seat (909) away from the second coupling (904). The end of the transmission shaft (905) away from the second coupling (904) passes through the bearing seat (909) and the flange (910) in sequence and is then connected to the axial force loading assembly (8) for transmission.

4. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 3 is characterized by: The axial force loading assembly (8) comprises an annular sensor (801), a spacer (802), a disc spring (803), a disc spring closure cover (804), an angular contact ball bearing sleeve (805), an angular contact ball bearing end cover (806), a locking nut (807), a first angular contact ball bearing (808), a second angular contact ball bearing (809), a spline rod (810), an annular gasket (811), an upper semicircular sleeve (812) and a lower semicircular sleeve (813), wherein both ends of the annular sensor (801) are fixedly connected to the flange (910) and the opposite surface of the spacer (802), an end of the spacer (802) away from the annular sensor (801) is fixedly connected to the disc spring closure cover (804), the disc spring (803) is sleeved between the spacer (802) and the disc spring closure cover (804), and the upper semicircular sleeve (812) and the lower semicircular sleeve (813) are fixedly connected to the flange (910) and the opposite surface of the spacer (802). The two angular contact ball bearings (808) and the second angular contact ball bearings (809) are connected together, one end of the connection structure is fixedly connected to the flange (910), and the other end is snap-connected to the outer peripheral side of the angular contact ball bearing sleeve (805); the inner peripheral side of the angular contact ball bearing sleeve (805) is fixedly connected to the angular contact ball bearing end cover (806); the first angular contact ball bearing (808) and the second angular contact ball bearing (809) are fitted and arranged inside the angular contact ball bearing sleeve (805) and the angular contact ball bearing end cover (806); and the inner rings of the first angular contact ball bearing (808) and the second angular contact ball bearing (809) are press-fastened and fixedly connected to the spline rod (810) through a locking nut (807); one end of the spline rod (810) is rotatably connected to the transmission shaft (905), and the other end of the spline rod (810) is fixedly connected to the simulated knife handle (6) through the annular gasket (811).

5. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 1 is characterized by: The radial force loading assembly (7) comprises a convex support frame (701) and a radial force loading device (702); the convex support frame (701) is mounted on the workbench (1) and is located between the first hard rail slide (2) and the second hard rail slide (3); and the two radial force loading devices (702) are respectively arranged on the top and side of the convex support frame (701).

6. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 5, characterized in that: The radial force loading device (702) includes an electric cylinder (70201), a positioning sleeve (70202), an end cover (70203), a sliding sleeve (70204), a roller mounting block (70205), a first roller bearing group (70206), a second roller bearing group (70207), a push rod (70208), a disc spring group (70209), a force sensor front flange (70210), a force sensor (70211), and a force sensor rear flange (70212). , a first core shaft (70213), a second core shaft (70214) and a ball cage (70215), the positioning sleeve (70202) is fastened to the convex support frame (701), the sliding sleeve (70204) is slidably connected to the interior of the positioning sleeve (70202) through the ball cage (70215), the electric cylinder (70201) is fixedly mounted on the positioning sleeve (70202), and the end cover (70203) is fastened to the positioning sleeve (702 02), the push rod (70208) is installed inside the sliding sleeve (70204), one end of the push rod (70208) is fixedly connected to the power output end of the electric cylinder (70201), the other end of the push rod (70208) is connected to the roller mounting block (70205) by a screw, the disc spring group (70209), the force sensor rear flange (70212), the force sensor (70211), the force sensor front flange (7021 0) are sequentially sleeved and installed on the push rod (70208) along the axial direction, and the two ends of the force sensor front flange (70210) are fixedly connected to the opposite surfaces of the force sensor (70211) and the roller mounting block (70205), respectively, and the first roller bearing group (70206) and the second roller bearing group (70207) are respectively installed on the roller mounting block (70205) through the first core shaft (70213) and the second core shaft (70214).

7. The B-axis powered tool holder test bench that combines performance testing and cutting functions according to claim 5, characterized in that: The performance detection component (10) is installed below the convex support frame (701) and is located on a side away from the radial force loading device (702) installed on the side; the performance detection component (10) includes a displacement sensor bracket (1001) and a first displacement sensor (1002), a second displacement sensor (1003), a third displacement sensor (1004), a fourth displacement sensor (1005) and a fifth displacement sensor (1006) installed on the displacement sensor bracket (1001), wherein the first displacement sensor (1002) and the second displacement sensor (1003) are used to measure the displacement change of the simulated tool handle (6) in the vertical direction, and the first displacement sensor (1002), the second displacement sensor (1003) and the fourth displacement sensor (1005) and the fifth displacement sensor (1006) are used to measure the displacement change of the simulated tool handle (6) in the vertical direction. The axial direction of the sensor (1003) is parallel to the axial direction of the radial force loading device (702) installed on the top of the convex support frame (701); the third displacement sensor (1004) is used to measure the displacement change of the simulated tool handle (6) in the axial direction, and the axis of the third displacement sensor (1004) is parallel to the working axis of the axial force loading component (8); the fourth displacement sensor (1005) and the fifth displacement sensor (1006) are used to measure the displacement change of the simulated tool handle (6) in the horizontal direction, and the axial directions of the fourth displacement sensor (1005) and the fifth displacement sensor (1006) are parallel to the axial direction of the radial force loading device (702) installed on the side of the convex support frame (701).

8. The B-axis powered tool holder test bench with both performance testing and cutting functions according to claim 1, characterized in that: The workpiece clamping assembly (11) comprises a chassis (1101), a spindle (1102) and a three-jaw chuck (1103); the chassis (1101) is fixedly connected to the third hard rail slide (4); the spindle (1102) is fixedly installed inside the chassis (1101); and the power output end of the spindle (1102) passes through the side wall of the chassis (1101) and is fixedly connected to the three-jaw chuck (1103).

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