A comparative test system for two-axis motion controllers on a simulation test bench

Abstract

The invention discloses a comparison test system for a two-axis motion controller on a simulation test bench, and relates to the technical field of comparison test, including a test bench, wherein a test mechanism is installed at the upper end of the test bench, the test mechanism comprises a slide rail and a lead screw respectively installed on the test bench, the slide rail and the lead screw are respectively symmetrically arranged front and back on the test bench, a slide seat is installed on the lead screw, the slide seat is slidably connected to the slide rail, a locking sleeve for connecting the two-axis motion controller is installed at the right end of the lead screw, a pillar is installed at the upper end of the slide seat, a rotating sleeve is installed at the upper end of the pillar, a sliding shell is installed on the side wall of the rotating sleeve, and a comparison mechanism is installed between the sliding shells on the front and rear sides; a pressure mechanism one and a pressure mechanism two are used for simulating the load conditions on the mounting connection part, simulating the data information of the synchronous driving of the two motion controllers, and can quickly, efficiently, concisely and comprehensively test the test data of the two-axis motion controller under different load conditions.

Description

Technical Field

[0001] The invention relates to the technical field of comparison testing, in particular to a comparison testing system for a two-axis motion controller on a simulation test bench. Background Art

[0002] With the continuous development of industrial automation and precision manufacturing technology, the performance and stability of motion controllers, as the core components of automation equipment, are crucial to the operation of the entire system. As one of them, two-axis motion controllers are widely used in various fields such as precision manufacturing, automated testing and simulation experiments.

[0003] At present, there are many two-axis motion controllers on the market. When comparing and testing these controllers, there is often a lack of a unified and standard test platform, which makes it difficult for the test results to objectively and accurately reflect the actual performance of the controllers. In addition, most of the existing test methods use manual operations, which are not only inefficient, but also easy to introduce human errors, affecting the accuracy of the test results.

[0004] Therefore, it is necessary to provide a comparative test system for a two-axis motion controller on a simulation test bench to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a comparative test system of a two-axis motion controller on a simulation test bench, comprising a test bench, a test mechanism installed at the upper end of the test bench, the test mechanism comprising a slide rail and a lead screw respectively installed on the test bench, the slide rail and the lead screw are respectively symmetrically arranged front and back on the test bench, a slide seat is installed on the lead screw, the slide seat is slidably connected to the slide rail, a locking sleeve for connecting the two-axis motion controller is installed at the right end of the lead screw, a pillar is installed at the upper end of the slide seat, a rotating sleeve is installed at the upper end of the pillar, a sliding shell is installed on the side wall of the rotating sleeve, a comparison mechanism is installed between the sliding shells on the front and rear sides, brackets are installed at the left and right ends of the test bench, and a pressure mechanism 2 and a pressure mechanism 1 located on the front and rear sides above the comparison mechanism are respectively installed between the brackets on the left and right sides.

[0006] Preferably, the comparison mechanism includes a cross bar and a guide frame, the front and rear ends of the cross bar are respectively connected to the sliding shells on the front and rear sides, a slide plate is installed at the upper end of the cross bar, and a guide column is installed at the center of the lower end of the cross bar. The guide frame is installed on the test bench, and a sliding cavity for the guide column to slide left and right is provided in the guide frame, and supporting mechanisms for supporting the cross bar are respectively installed on the front and rear sides of the guide frame.

[0007] Preferably, the upper end of the guide column is centrally rotatably connected to the lower end of the crossbar.

[0008] Preferably, the cross section of the cross bar is square, the cross section of the sliding shell is concave, and rolling balls 1 are respectively provided on three shell walls of the sliding shell for contacting three rod surfaces corresponding to the cross bar.

[0009] Preferably, the supporting mechanism includes a lifting cylinder three and a supporting plate, the lifting cylinder three is respectively arranged at the left and right ends of the test bench, the left and right ends of the supporting plate are respectively connected to the upper ends of the lifting cylinder three on the left and right sides, and the surface of the supporting plate is densely covered with evenly distributed rolling balls four.

[0010] Preferably, an angle reading ring is provided at the upper end of the rotating sleeve, and an angle sensing pointer for reading the angle reading ring is installed at the upper end of the pillar, and the angle sensing pointer points perpendicular to the moving direction of the slide.

[0011] Preferably, the locking sleeve comprises a locking sleeve coaxially fixed with the lead screw, and the circumference of the shell wall of the locking sleeve is provided with three groups of screw holes, and the screw holes are connected with bolts for fixing the shaft ends of the two-axis motion controller.

[0012] Preferably, the pressure mechanism comprises a guide rail, a transverse plate, a lifting cylinder and a pressure plate. The guide rail is respectively arranged on the brackets on the left and right sides, and a movable seat is installed on the guide rail. The left and right ends of the transverse plate are respectively connected to the movable seats on the left and right sides. The lifting cylinder is respectively arranged at the two ends of a lower end surface of the transverse plate, and the two ends of the pressure plate are respectively connected to a lower end of the lifting cylinder on the left and right sides. The surface of the pressure plate is densely covered with evenly distributed rolling balls.

[0013] Preferably, the second pressure mechanism includes a second guide rail, a second cross plate, a second lifting cylinder and a second pressure plate. The second guide rail is respectively arranged on two brackets, and a second movable seat is installed on the second guide rail. The two ends of the second cross plate are respectively connected to the two movable seats on the left and right sides. The second lifting cylinder is respectively arranged at the two ends of the lower end surface of the second cross plate, and the two ends of the second pressure plate are respectively connected to the lower ends of the second lifting cylinder on the left and right sides. The surface of the second pressure plate is densely covered with evenly distributed rolling balls three.

[0014] Compared with the prior art, the present invention provides a comparative test system for a two-axis motion controller on a simulation test bench, which has the following beneficial effects:

[0015] In the present invention, by cooperating with the pressure mechanism one and the pressure mechanism two, it is possible to apply forces of different positions and sizes to the slide in the comparison mechanism, and to simulate different load conditions of the slide in the test mechanism. Especially when the pressure plate one in the pressure mechanism one and the pressure plate two in the pressure mechanism two are applied to asymmetric positions on the front and rear sides of the upper end of the slide, it is possible to simulate the non-uniform load conditions borne on the two slides in the test mechanism, and simulate the various biased load force conditions on the slide, so that in the comparison test system of the two-axis motion controller, when there is a difference in the drive of one motion controller or two motion controllers, the influence on the slide driven by the two motion controllers can be simulated. That is to say, the slide is used to simulate the connecting parts carried on the two slides, and the pressure mechanism one and the pressure mechanism two are used to simulate the load conditions carried on the connecting parts, and simulate the data information of the synchronous drive of the two motion controllers, so as to quickly, efficiently, concisely and comprehensively test the test data of the two-axis motion controller under different load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the comparative test system of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the pressure applying mechanism 1 and the pressure applying mechanism 2 in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the comparison mechanism in the present invention;

[0019] Figure 4 It is a schematic diagram of the local structure of the testing mechanism in the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the locking sleeve in the present invention;

[0021] Figure 6 It is a structural schematic diagram of the supporting mechanism in the present invention;

[0022] In the figure: 1, test bench; 2, test mechanism; 3, bracket; 4, pressure mechanism 1; 5, pressure mechanism 2; 6, comparison mechanism; 7, supporting mechanism; 21, slide rail; 22, lead screw; 23, slide seat; 24, locking sleeve; 25, support; 26, rotating sleeve; 27, sliding shell; 28, rolling ball 1; 29, angle reading ring; 210, angle sensing pointer; 241, locking sleeve; 242, screw hole; 243, bolt; 4 1. Guide rail 1; 42. Moving seat 1; 43. Horizontal plate 1; 44. Lifting cylinder 1; 45. Pressure plate 1; 46. Rolling ball 2; 51. Guide rail 2; 52. Moving seat 2; 53. Horizontal plate 2; 54. Lifting cylinder 2; 55. Pressure plate 2; 56. Rolling ball 3; 61. Horizontal bar; 62. Slide plate; 63. Guide column; 64. Guide frame; 65. Sliding cavity; 71. Lifting cylinder 3; 72. Support plate; 73. Rolling ball 4. DETAILED DESCRIPTION

[0023] Reference Figure 1-Figure 6The present invention provides a technical solution: a comparative test system of a two-axis motion controller on a simulation test bench, comprising a test bench 1, a test mechanism 2 is installed on the upper end of the test bench 1, the test mechanism 2 comprises a slide rail 21 and a lead screw 22 respectively installed on the test bench 1, the slide rail 21 and the lead screw 22 are respectively arranged symmetrically front and back on the test bench 1, a slide seat 23 is installed on the lead screw 22, the slide seat 23 is slidably connected to the slide rail 21, a locking sleeve 24 for connecting the two-axis motion controller is installed on the right end of the lead screw 22, a pillar 25 is installed on the upper end of the slide seat 23, a rotating sleeve 26 is installed on the upper end of the pillar 25, and a side wall of the rotating sleeve 26 A sliding shell 27 is installed, and a comparison mechanism 6 is installed between the sliding shells 27 on the front and rear sides. Brackets 3 are installed at both left and right ends of the test bench 1, and pressure mechanisms 2 5 and 1 are installed between the brackets 3 on the left and right sides, located on the front and rear sides above the comparison mechanism 6. Wherein, through the coordinated arrangement of the pressure mechanism 1 4 and the pressure mechanism 2 5, forces of different positions and sizes can be applied to the slide plate 62 in the comparison mechanism 6, and different load conditions of the slide seat 23 in the test mechanism 2 can be simulated. Wherein, especially when the pressure plate 1 45 in the pressure mechanism 1 4 and the pressure plate 2 55 in the pressure mechanism 2 5 are applied to the slide plate When the load is applied to the asymmetric positions on the front and rear sides of the upper end of the slide 62, the non-uniform load condition on the two slides 23 in the test mechanism 2 can be simulated. That is, when the load is applied to the symmetrical positions on the front and rear sides of the upper end of the slide 62, the load condition on the slide 23 is uniform, that is, the center of the load force is located at the center position between the two slides 23. When the load is applied to the asymmetric positions on the front and rear sides of the upper end of the slide 62, the load condition on the slide 23 is non-uniform, that is, the center of the load force is not located at the center position between the two slides 23, that is, the simulated slide There are a variety of bias load force conditions above 62, so that in the comparative test system of the two-axis motion controller, when there is a difference in the drive of one motion controller or two motion controllers, the impact on the slide 23 driven by the two motion controllers can be simulated, that is, the slide 62 is used to simulate the connecting parts carried on the two slides 23, the pressure mechanism 1 4 and the pressure mechanism 2 5 are used to simulate the load conditions on the connecting parts, and simulate the data information of the synchronous drive of the two motion controllers, which can quickly, efficiently, concisely and comprehensively test the test data of the two-axis motion controller under different load conditions.

[0024] In this embodiment, the comparison mechanism 6 includes a cross bar 61 and a guide frame 64, the front and rear ends of the cross bar 61 are respectively connected to the sliding shells 27 on the front and rear sides, a slide plate 62 is installed on the upper end of the cross bar 61, and a guide column 63 is installed at the center of the lower end of the cross bar 61. The guide frame 64 is installed on the test bench 1, and a sliding cavity 65 for the guide column 63 to slide left and right is provided in the guide frame 64, and a supporting mechanism 7 for supporting the cross bar 61 is respectively installed on the front and rear sides of the guide frame 64; during the sliding process of the cross bar 61, the expansion and contraction changes of the cross bar 61 are limited by the cooperation of the guide column 63 and the guide frame 64 to prevent the cross bar 61 from falling off the sliding shell 27.

[0025] In this embodiment, the upper end of the guide column 63 is rotatably connected to the lower end center of the cross bar 61 , so as to reduce the contact friction between the guide column 63 and the wall of the sliding cavity 65 and improve the movement smoothness of the cross bar 61 .

[0026] In this embodiment, the cross section of the cross bar 61 is square, the cross section of the sliding shell 27 is concave, and rolling balls 28 are respectively provided on three sides of the sliding shell 27 to contact the three rod surfaces corresponding to the cross bar 61, so that the test installation and disassembly are more efficient.

[0027] In this embodiment, the supporting mechanism 7 includes a lifting cylinder 3 71 and a supporting plate 72. The lifting cylinder 3 71 is respectively arranged at the left and right ends of the test bench 1. The left and right ends of the supporting plate 72 are respectively connected to the upper ends of the lifting cylinder 3 71 on the left and right sides. The surface of the supporting plate 72 is densely covered with uniform rolling balls 4 73. When it is necessary to eliminate the load of the slide 23 driven by the two-axis motion controller, the cross bar 61 is supported by the supporting mechanism 7, so that the eccentric load force on the pillar 25 is eliminated, thereby simulating the synchronous driving condition of the two-axis motion controller when there is no eccentric load force.

[0028] In this embodiment, an angle reading ring 29 is provided at the upper end of the rotating sleeve 26, and an angle sensing pointer 210 for reading the angle reading ring 29 is installed at the upper end of the pillar 25, and the angle sensing pointer 210 points perpendicular to the moving direction of the slide 23; the inclination angle of the cross bar 61 and the initial pointing direction is read in real time and dynamically by the angle sensing pointer 210, and the displacement difference of the sliding of the front and rear slides 23 is calculated by the center distance and trigonometric function of the front and rear pillars 25, which indicates that under the condition of synchronous driving of the two motion controllers, there is a displacement difference between the two slides 23 on the front and rear sides.

[0029] In this embodiment, the locking sleeve 24 includes a locking sleeve 241 coaxially fixed to the lead screw 22 , and three groups of screw holes 242 are arranged on the circumference of the shell wall of the locking sleeve 241 , and bolts 243 for fixing the shaft ends of the two-axis motion controller are connected to the screw holes 242 .

[0030] In this embodiment, the pressure mechanism 4 includes a guide rail 41, a transverse plate 43, a lifting cylinder 44 and a pressure plate 45. The guide rail 41 is respectively arranged on the brackets 3 on the left and right sides, and a movable seat 42 is installed on the guide rail 41. The left and right ends of the transverse plate 43 are respectively connected to the movable seats 42 on the left and right sides. The lifting cylinder 44 is respectively arranged at the two ends of the lower end surface of the transverse plate 43. The two ends of the pressure plate 45 are respectively connected to the lower ends of the lifting cylinder 44 on the left and right sides. The plate surface of the pressure plate 45 is densely covered with uniform rolling balls 46.

[0031] In this embodiment, the pressure mechanism 25 includes a guide rail 251, a horizontal plate 253, a lifting cylinder 254 and a pressure plate 255. The guide rail 251 is respectively arranged on two brackets 3, and a movable seat 252 is installed on the guide rail 251. The two ends of the horizontal plate 253 are respectively connected to the movable seat 252 on the left and right sides. The lifting cylinder 254 is respectively arranged at the two ends of the lower end surface of the horizontal plate 253. The two ends of the pressure plate 255 are respectively connected to the lower ends of the lifting cylinder 254 on the left and right sides. The plate surface of the pressure plate 255 is densely covered with evenly distributed rolling balls 356.

[0032] In specific implementation, it includes the following steps:

[0033] Step 1: Insert the shaft ends of the two motion controllers of the two-axis motion controller into the locking sleeves 24 on the front and rear sides respectively, and fix them;

[0034] Step 2: applying the load conditions of the required simulation test to the slide plate 62 in the comparison mechanism 6 through the coordination and regulation of the pressure-applying mechanism 1 4 and the pressure-applying mechanism 2 5;

[0035] Step three: Start two motion controllers synchronously to drive the front and rear slides 23. If the angle sensing pointer 210 dynamically reads in real time that the cross bar 61 has an inclination angle with the initial pointing direction, the displacement difference of the front and rear slides 23 can be calculated through the center distance of the front and rear pillars 25 and trigonometric functions. This indicates that under the condition of synchronous driving of the two motion controllers, there is a displacement difference between the two slides 23 on the front and rear sides.

[0036] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the invention, which should be covered by the protection scope of the present invention.

Claims

1. A comparative test system for a two-axis motion controller on a simulation test bench, comprising a test bench (1), characterized in that: A test mechanism (2) is installed at the upper end of the test bench (1), and the test mechanism (2) comprises a slide rail (21) and a lead screw (22) respectively installed on the test bench (1), the slide rail (21) and the lead screw (22) are respectively arranged symmetrically front and back on the test bench (1), a slide seat (23) is installed on the lead screw (22), the slide seat (23) is slidably connected to the slide rail (21), and a locking sleeve (23) for connecting a two-axis motion controller is installed at the right end of the lead screw (22). 24), a support (25) is installed on the upper end of the slide seat (23), a rotating sleeve (26) is installed on the upper end of the support (25), a sliding shell (27) is installed on the side wall of the rotating sleeve (26), a comparison mechanism (6) is installed between the front and rear sliding shells (27), the left and right ends of the test bench (1) are both installed with brackets (3), and a pressure mechanism 2 (5) and a pressure mechanism 1 (4) are respectively installed between the brackets (3) on the left and right sides, which are located on the front and rear sides above the comparison mechanism (6); The comparison mechanism (6) comprises a cross bar (61) and a guide frame (64), the front and rear ends of the cross bar (61) are respectively connected to the sliding shells (27) on the front and rear sides, the upper end of the cross bar (61) is provided with a slide plate (62), the lower end center of the cross bar (61) is provided with a guide column (63), the guide frame (64) is installed on the test bench (1), a sliding cavity (65) for the guide column (63) to slide left and right is provided in the guide frame (64), and supporting mechanisms (7) for supporting the cross bar (61) are respectively installed on the front and rear sides of the guide frame (64); An angle reading ring (29) is provided at the upper end of the rotating sleeve (26), and an angle sensing pointer (210) for reading the angle reading ring (29) is installed at the upper end of the support (25), wherein the angle sensing pointer (210) points perpendicularly to the moving direction of the slide seat (23).

2. A comparative test system for a two-axis motion controller on a simulation test bench according to claim 1, characterized in that: The upper end of the guide column (63) is centrally connected to the lower end of the crossbar (61) for rotation.

3. The comparative test system of a two-axis motion controller on a simulation test bench according to claim 1 is characterized in that: The cross section of the cross bar (61) is square, the cross section of the sliding shell (27) is concave, and rolling balls (28) are respectively arranged on three shell walls of the sliding shell (27) and contact three rod surfaces corresponding to the cross bar (61).

4. The comparative test system of a two-axis motion controller on a simulation test bench according to claim 1 is characterized in that: The supporting mechanism (7) comprises a lifting cylinder three (71) and a supporting plate (72), wherein the lifting cylinder three (71) is respectively arranged at the left and right ends of the test bench (1), and the left and right ends of the supporting plate (72) are respectively connected to the upper ends of the lifting cylinder three (71) on the left and right sides, and the surface of the supporting plate (72) is densely covered with evenly distributed rolling balls four (73).

5. The comparative test system of a two-axis motion controller on a simulation test bench according to claim 1 is characterized in that: The locking sleeve (24) comprises a locking sleeve (241) coaxially fixed with the lead screw (22); three groups of screw holes (242) are arranged on the circumference of the shell wall of the locking sleeve (241); bolts (243) for fixing the shaft ends of the two-axis motion controller are connected to the screw holes (242).

6. The comparative test system of a two-axis motion controller on a simulation test bench according to claim 1, characterized in that: The pressure mechanism (4) comprises a guide rail (41), a transverse plate (43), a lifting cylinder (44) and a pressure plate (45). The guide rail (41) is respectively arranged on the brackets (3) on the left and right sides. A movable seat (42) is installed on the guide rail (41). The left and right ends of the transverse plate (43) are respectively connected to the movable seats (42) on the left and right sides. The lifting cylinder (44) is respectively arranged at the two ends of the lower end surface of the transverse plate (43). The two ends of the pressure plate (45) are respectively connected to the lower ends of the lifting cylinder (44) on the left and right sides. The surface of the pressure plate (45) is densely covered with uniform rolling balls (46).

7. The comparative test system of a two-axis motion controller on a simulation test bench according to claim 1, characterized in that: The pressure mechanism 2 (5) comprises a guide rail 2 (51), a cross plate 2 (53), a lifting cylinder 2 (54) and a pressure plate 2 (55). The guide rail 2 (51) is respectively arranged on two brackets (3). A movable seat 2 (52) is installed on the guide rail 2 (51). The two ends of the cross plate 2 (53) are respectively connected to the movable seat 2 (52) on the left and right sides. The lifting cylinder 2 (54) is respectively arranged at the two ends of the lower end surface of the cross plate 2 (53). The two ends of the pressure plate 2 (55) are respectively connected to the lower ends of the lifting cylinder 2 (54) on the left and right sides. The plate surface of the pressure plate 2 (55) is densely covered with uniform rolling balls 3 (56).

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