A side sliding door sliding rail rolling test device

Abstract

The application relates to a side sliding door sliding rail rolling test device, which comprises a workbench, the front side of the workbench is provided with a test groove, a fixing jig for positioning a side sliding door sliding rail is arranged in the test groove, the rear side of the workbench is provided with an X-axis track parallel to the long direction of the fixing jig, a transverse sliding table is slidably arranged on the X-axis track, a screw rod transmission device for driving the transverse sliding table to slide is arranged below the workbench, a longitudinal sliding groove is arranged on the transverse sliding table, a Y-axis track is slidably arranged in the longitudinal sliding groove, a mounting seat is arranged on the Y-axis track, a test pulley assembly capable of being matched with the side sliding door sliding rail is arranged on the front side of the mounting seat close to the fixing jig, and a drainage opening is arranged in the test groove. The application belongs to the technical field of automobile part testing, and automatic testing with long time, high frequency and unattended operation can be realized through the driving of a motor and a screw rod transmission device, so that the testing efficiency and consistency are greatly improved.

Description

Technical Field

[0001] This application relates to the field of automotive component testing technology, and in particular to a sliding door rail rolling test device. Background Technology

[0002] Sliding doors are a common type of door in commercial buses, MPVs, and other vehicles. The smoothness of the sliding rails, their wear resistance, and their reliability under harsh conditions (such as mud, sand, and rain erosion) directly affect the door's lifespan and user experience. Currently, testing of sliding rails largely relies on manual simulation or simple bench tests, which has the following shortcomings: (1) Low testing efficiency: Manual testing is difficult to achieve long-term, high-frequency reciprocating motion, and the test results are greatly affected by human factors.

[0003] (2) The simulated working conditions are simple: it is difficult to realistically simulate the complex working conditions of multiple factors such as lateral force, vertical pressure and mud and water erosion that the pulley actually bears when it runs in the slide rail.

[0004] (3) Low level of automation: lack of integrated testing platform, unable to achieve precise trajectory control and load adjustment, and low comparability and accuracy of test data.

[0005] Therefore, there is an urgent need for a specialized device that can automatically and accurately simulate the actual working state of the sliding door pulley and perform durability tests in muddy and water environments. Utility Model Content

[0006] Therefore, it is necessary to provide a side sliding door track rolling test device, the specific technical solution of which is as follows.

[0007] A sliding door track rolling test device includes a worktable, a test groove on the front side of the worktable, a fixing fixture for positioning the sliding door track in the test groove, an X-axis track parallel to the longitudinal direction of the fixing fixture on the rear side of the worktable, a transverse slide table sliding on the X-axis track, a screw drive device for driving the transverse slide table to slide below the worktable, a longitudinal groove on the transverse slide table, a Y-axis track sliding in the longitudinal groove, a mounting seat on the Y-axis track, a test pulley assembly adapted to the sliding door track on the front side of the mounting seat near the fixing fixture, and a drain outlet in the test groove.

[0008] Furthermore, the lead screw drive device includes a reciprocating lead screw rotatably mounted below the worktable via bearings and a ball nut adapted to the reciprocating lead screw located at the bottom of the transverse slide. A motor and a reduction gearbox for driving the reciprocating lead screw are located below the worktable, and a clearance groove corresponding to the ball nut is located on the worktable below the transverse slide.

[0009] Furthermore, the mounting base includes a flat plate disposed at the top of the Y-axis track and a vertical plate disposed perpendicular to the bottom surface of the flat plate, the test pulley assembly is mounted on the side of the vertical plate, and a counterweight assembly is provided on the flat plate.

[0010] Furthermore, the test pulley assembly includes two guide wheels, a support wheel, a connecting seat connected to the side of the vertical plate, and a hinge seat rotatably disposed on the front side of the connecting seat. The hinge seat is rotatably connected to the connecting seat via a hinge shaft, and the two guide wheels and the support wheel are disposed on the front side of the hinge seat.

[0011] Furthermore, the support shaft of the support wheel is perpendicular to the front side of the hinge seat, the support shafts of the two guide wheels are perpendicular to the top surface of the hinge seat, and the support wheel is located between the two guide wheels.

[0012] Furthermore, the counterweight assembly includes a central block and a counterweight block disposed on the plate. Two hooks are symmetrically arranged at both ends of the central block. The counterweight block is installed in the hooks. The bottom of the counterweight block is provided with a groove that adapts to the two sides of the hooks. The hooks are provided with clamping bolts that adapt to the outer end face of the counterweight block.

[0013] Furthermore, two columns are provided on both sides of the top of the counterweight block, and counterweight plates are fitted on the two columns. A limiting nut is provided on the top of the columns.

[0014] Furthermore, the top of the central block is provided with an operating handle.

[0015] Compared with existing technologies, this utility model has the following beneficial effects: (1) The sliding door track rolling test device of this utility model is driven by a motor and a screw transmission device, which can realize long-term, high-frequency, unattended automated testing, which greatly improves the testing efficiency and consistency. (2) The sliding door track rolling test device of this utility model is equipped with an adjustable counterweight component, which can comprehensively evaluate the wear resistance, corrosion resistance and load-bearing capacity of the track. (3) The side sliding door track rolling test device of this utility model has a precise mechanical transmission structure and a simulated test pulley assembly design, which ensures the accuracy of the motion trajectory and the realism of the force state during the test, and the test data is accurate and reliable. (4) The sliding door track rolling test device of this utility model has a modular counterweight design and an adjustable test pulley installation method, which enables the device to adapt to the testing of sliding door tracks of different specifications and different load requirements, and has high versatility. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural view of the sliding door track rolling test device of this utility model; Figure 2 This is a structural front view of the sliding door rail rolling test device of this utility model; Figure 3 This is a top view of the structure of the sliding door track rolling test device of this utility model; Figure 4 This is a side view of the structure of the sliding door track rolling test device of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Workbench; 2. Test slot; 3. Side sliding door rail; 4. Fixture; 5. X-axis rail; 6. Horizontal slide; 7. Screw drive device; 8. Longitudinal slide groove; 9. Y-axis rail; 10. Mounting base; 11. Test pulley assembly; 12. Drain outlet; 13. Clearance groove; 14. Counterweight assembly; 71. Reciprocating screw; 72. Ball nut; 73. Motor; 74. Gearbox; 101. Flat plate; 102. Vertical plate; 111. Guide wheel; 112. Support wheel; 113. Connecting seat; 114. Hinge seat; 141. Middle block; 142. Counterweight block; 143. Hook; 145. Clamping bolt; 146. Column; 147. Counterweight plate; 148. Limit nut; 149. Operating handle. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Reference Figures 1-4As shown, this embodiment provides a sliding door rail rolling test device, including a workbench 1, a test groove 2 on the front side of the workbench 1, a fixing fixture 4 for positioning the sliding door rail 3 in the test groove 2, an X-axis rail 5 parallel to the longitudinal direction of the fixing fixture 4 on the rear side of the workbench 1, a transverse slide 6 slidably on the X-axis rail 5, a screw drive device 7 for driving the transverse slide 6 to slide is provided below the workbench 1, a longitudinal groove 8 is provided on the transverse slide 6, a Y-axis rail 9 slidably in the longitudinal groove 8, a mounting seat 10 is provided on the Y-axis rail 9, a test pulley assembly 11 that can be adapted to the sliding door rail 3 is provided on the front side of the mounting seat 10 near the fixing fixture 4, a drain outlet 12 is provided in the test groove 2, a mud and water tank and a water pump are provided below the workbench (1), and the water pump transports the mud and water in the mud and water tank to the slide rail 3 through a spray pipe.

[0022] In this utility model's sliding door rail rolling test device, a motor drives a screw transmission device to move a transverse slide table reciprocating along the X-axis track, thereby driving the test pulley assembly to simulate the opening and closing process of a sliding door. Simultaneously, a water pump continuously or intermittently sprays muddy water from a mud tank into the rail through a nozzle, simulating rain, snow, and muddy road conditions. The muddy water after testing is collected and returned through a drain. This achieves automated reciprocating rolling of the test pulley within the rail and introduces muddy water erosion conditions, making the test more closely resemble actual harsh usage environments. It significantly improves the automation and efficiency of the test, effectively assessing the rail's wear resistance, corrosion resistance, and rolling resistance changes in a muddy water environment, resulting in more accurate and reliable test results.

[0023] Specifically, the lead screw drive device 7 includes a reciprocating lead screw 71 rotatably mounted below the worktable 1 via bearings, and a ball nut 72 adapted to the reciprocating lead screw 71 and located at the bottom of the transverse slide 6. A motor 73 and a reduction gearbox 74 are located below the worktable 1 to drive the reciprocating lead screw 71. A clearance groove 13 corresponding to the ball nut 72 is located on the worktable 1 below the transverse slide 6. In this embodiment, after the motor speed is adjusted by the reduction gearbox, it drives the reciprocating lead screw to rotate, forming a helical transmission with the ball nut fixed at the bottom of the transverse slide, converting the rotational motion into high-precision linear reciprocating motion of the transverse slide. This provides a drive method that is smooth, precise, and easy to control; ensures the accuracy and repeatability of the test pulley's motion trajectory; the ball nut has high transmission efficiency and long service life; and the clearance groove ensures the normal operation of the transmission structure.

[0024] Specifically, the mounting base 10 includes a flat plate 101 located at the top of the Y-axis track 9 and a vertical plate 102 perpendicular to the bottom surface of the flat plate 101. The test pulley assembly 11 is mounted on the side of the vertical plate 102, and a counterweight assembly 14 is provided on the flat plate 101. In this embodiment, the L-shaped structure achieves functional partitioning; the vertical plate is used to install test components, and the flat plate is used for balancing and loading. The optimized structure of the mounting base provides a stable mounting foundation for the test pulley assembly and a platform for simulating the weight of a car door. The structure is compact and has good rigidity. The counterweight assembly allows for flexible simulation of the load conditions of car doors of different weights, making the test conditions more targeted.

[0025] Specifically, the test pulley assembly 11 includes two guide wheels 111, a support wheel 112, a connecting seat 113 connected to the side of the vertical plate 102, and a hinge seat 114 rotatably disposed on the front side of the connecting seat 113. The hinge seat 114 is rotatably connected to the connecting seat 113 via a hinge shaft. The two guide wheels 111 and the support wheel 112 are disposed on the front side of the hinge seat 114. The support shaft of the support wheel 112 is perpendicular to the front side of the hinge seat 114, and the support shafts of the two guide wheels 111 are perpendicular to the top surface of the hinge seat 114. The support wheel 112 is located between the two guide wheels 111. By accurately simulating the actual movement posture and force relationship of the sliding door pulley within the slide rail using the two guide wheels 111 and the support wheel 112, the contact state between the pulley and the slide rail during door movement can be realistically reproduced. The test results better reflect the actual performance of the product, and the three-point positioning structure ensures operational stability and guidance. After the two guide wheels 111 and the support wheel 112 have undergone tens of thousands of reciprocating movements within the slide rail, the wear condition of the track inside the slide rail can be checked to determine whether the quality of the side sliding door slide rail meets the requirements.

[0026] Specifically, the counterweight assembly 14 includes a central block 141 and a counterweight block 142 disposed on the plate 101. Two hooks 143 are symmetrically arranged at both ends of the central block 141. The counterweight block 142 is installed in the hooks 143. The bottom of the counterweight block 142 is provided with a groove that corresponds to the two sides of the hooks 143. The hooks 143 are provided with clamping bolts 145 that correspond to the outer end face of the counterweight block 142. Two columns 146 are provided on both sides of the top of the counterweight block 142. A counterweight plate 147 is sleeved on the two columns 146. A limiting nut 148 is provided on the top of the columns 146. An operating handle 149 is provided on the top of the central block 141. In this embodiment, the counterweight sits on the hook via a slot at the bottom and is locked in place by a clamping bolt, achieving primary counterweight. For heavier loads, a counterweight plate can be mounted on the column and secured with a limit nut, achieving secondary counterweight. The operating handle facilitates the transport and installation of the entire counterweight assembly. It enables stepless or stepped fine adjustment of the load, meeting the testing requirements of sliding doors for different vehicle models. The modular design makes the replacement and combination of counterweights extremely convenient, greatly improving the efficiency of test preparation.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sliding door track rolling test device, comprising a workbench (1), characterized in that, The front side of the workbench (1) is provided with a test groove (2), and the test groove (2) is provided with a fixing fixture (4) for positioning the sliding door rail (3). The rear side of the workbench (1) is provided with an X-axis rail (5) parallel to the long direction of the fixing fixture (4). A transverse slide (6) is slidably provided on the X-axis rail (5). A screw drive device (7) for driving the transverse slide (6) to slide is provided below the workbench (1). A longitudinal slide groove (8) is provided on the transverse slide (6). A Y-axis rail (9) is slidably provided in the longitudinal slide groove (8). A mounting seat (10) is provided on the Y-axis rail (9). A test pulley assembly (11) that can be adapted to the sliding door rail (3) is provided on the front side of the mounting seat (10) near the fixing fixture (4). A drain outlet (12) is provided in the test groove (2).

2. The sliding door track rolling test device according to claim 1, characterized in that, The lead screw drive device (7) includes a reciprocating lead screw (71) rotatably mounted below the worktable (1) via bearings and a ball nut (72) adapted to the reciprocating lead screw (71) located at the bottom of the transverse slide (6). A motor (73) and a gearbox (74) for driving the reciprocating lead screw (71) to rotate are provided below the worktable (1). A clearance groove (13) corresponding to the ball nut (72) is provided on the worktable (1) located below the transverse slide (6).

3. The sliding door track rolling test device according to claim 2, characterized in that, The mounting base (10) includes a flat plate (101) at the top of the Y-axis track (9) and a vertical plate (102) perpendicular to the bottom surface of the flat plate (101). The test pulley assembly (11) is mounted on the side of the vertical plate (102), and a counterweight assembly (14) is provided on the flat plate (101).

4. The sliding door track rolling test device according to claim 3, characterized in that, The test pulley assembly (11) includes two guide wheels (111), a support wheel (112), a connecting seat (113) connected to the side of the vertical plate (102), and a hinge seat (114) rotatably disposed on the front side of the connecting seat (113). The hinge seat (114) is rotatably connected to the connecting seat (113) through a hinge shaft. The two guide wheels (111) and the support wheel (112) are disposed on the front side of the hinge seat (114).

5. The sliding door track rolling test device according to claim 4, characterized in that, The support shaft of the support wheel (112) is perpendicular to the front side of the hinge seat (114), and the support shafts of the two guide wheels (111) are perpendicular to the top surface of the hinge seat (114). The support wheel (112) is located between the two guide wheels (111).

6. The sliding door track rolling test device according to claim 3, characterized in that, The counterweight assembly (14) includes a central block (141) and a counterweight block (142) disposed on the plate (101). Two hooks (143) are symmetrically arranged at both ends of the central block (141). The counterweight block (142) is installed in the hooks (143). The bottom of the counterweight block (142) is provided with a slot that is adapted to the two sides of the hooks (143). The hooks (143) are provided with clamping bolts (145) that are adapted to the outer end face of the counterweight block (142).

7. The sliding door track rolling test device according to claim 6, characterized in that, The counterweight (142) has two columns (146) on both sides of its top end, and counterweight plates (147) are fitted on the two columns (146). The top of the columns (146) is provided with a limiting nut (148).

8. The sliding door track rolling test device according to claim 6, characterized in that, The top of the middle block (141) is provided with an operating handle (149).

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