A running-in device for performance test of a rolling linear guide reverser

Abstract

The application discloses a running-in device for performance test of a reverse device of a rolling linear guide rail and relates to the technical field of performance test of the rolling linear guide rail.The running-in device comprises a base, a workbench, a shifting piece mechanism, two reverse devices, four groups of pipes and two reverse device fixing mechanisms, the workbench is slidably arranged on the top of the base, a driving mechanism is fixed to the outer side of the base, a gear and a rack mechanism is arranged between the output end of the driving mechanism and the workbench, the gear and the rack mechanism are arranged in the base, the reverse device fixing mechanism comprises a connecting plate and two L-shaped blocking pieces, and four groups of through holes are formed in the connecting plate.The novel running-in device is designed to play a simulation role, the circulation of rolling bodies in the pipes and the reverse devices is simulated, the real situation of the reverse device during the movement of the rolling linear guide rail pair is simulated, that is, the guide rail is simulated to be stationary and the sliding block is simulated to slide back and forth, the test result is real and reliable, the device does not contain the sliding block body, and the vacancy of the reverse device test in the field is made up.

Description

Technical Field

[0001] This invention belongs to the field of performance testing technology for rolling linear guides, and in particular relates to a running-in device for performance testing of a rolling linear guide reversing device. Background Technology

[0002] A rolling linear guide generally consists of a guide rail, a slider, a reverser, rolling elements, and a retainer. The reverser is installed at both ends of the slider in the rolling linear guide pair. Its function is to smoothly change the movement of the rolling elements by 180°, so that they can achieve infinite cyclic rolling between the guide rail and the slider.

[0003] Reversers are one of the main sources of friction, vibration, and other phenomena. Their performance directly affects the transmission efficiency of rolling linear guide pairs. Therefore, performance testing of reversers is extremely important.

[0004] Currently, there is no designed running-in device for testing the performance of the reverser. Patent CN111521392A discloses a ball screw and rolling linear guide reverser friction torque detection device, which can directly drive the ball screw reverser to rotate to detect the friction torque of the reverser, and can simultaneously detect the friction torque of the ball screw and rolling guide reverser. However, it does not specifically conduct a running-in test for the performance of the reverser. Patent CN114689318A discloses a vibration signal analysis and diagnosis method for ball screw pair reverser failure, but it does not design a test bench. Summary of the Invention

[0005] The purpose of this invention is to provide a running-in device for testing the performance of a rolling linear guide reverser. By designing a novel running-in device, it plays a simulation role, simulating the circulation of the rolling element in the pipe and the reverser, and simulating the real situation of the reverser when the rolling linear guide pair moves, that is, simulating the guide rail being stationary while the slider slides back and forth. The test results are real and reliable. This device does not contain the slider body, thus filling the gap in the field for reverser testing.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention is a running-in device for testing the performance of a reversing device for a rolling linear guide, comprising a base, a worktable, a paddle mechanism, two reversing devices, four sets of pipes, and two reversing device fixing mechanisms.

[0008] The worktable is slidably mounted on the top of the base, and a drive mechanism is fixed on the outside of the base. A gear and rack mechanism is provided between the output end of the drive mechanism and the worktable, and the gear and rack mechanism is located inside the base.

[0009] The inverter fixing mechanism includes a connecting plate and two L-shaped baffles;

[0010] The connecting plate has four sets of openings, and the two ends of the four sets of pipes are respectively fixed in the openings of the two connecting plates. The reverser is fixed to the outside of the connecting plate by screws, and the outside of the connecting plate is provided with a positioning piece that cooperates with the reverser.

[0011] The bottom of the vertical side of the L-shaped baffle is fixed to the end face of the workbench by screws, the horizontal side of the L-shaped baffle covers the top surface of the reverser, a pad is provided between the reverser and the L-shaped baffle, and the pad is fixed to the workbench by screws.

[0012] Each set of pipes is connected at both ends to the two ends of the steering channel on the two reversers to form a roller channel. The pipe inside the roller channel has a slot.

[0013] The lever mechanism includes a straight rod, and a strip groove is provided on the top of the workbench. The straight rod passes through the strip groove and is fixed to the top of the base through a flange. Two support rods are fixed on both sides of the straight rod. The support rods pass through the groove and are fixed with two levers. The gap between the levers is set inside the pipe.

[0014] Furthermore, it also includes two support members, each including a base plate, which is fixed to the top surface of the base by fasteners. Vertical plates are fixed to the bottom of both ends of the base plate, and two support openings are opened on the front and rear sides of the vertical plates. The four sets of pipes are respectively arranged in the eight support openings on the support members with gaps.

[0015] Furthermore, the roller channel is provided with a plurality of rolling elements, and the two paddles are disposed between two adjacent rolling elements.

[0016] Furthermore, the connecting plate is provided with a number of fastening screws on its peripheral side, the fastening screws extending into the opening, and the end of the pipe is fixed to the opening by the fastening screws.

[0017] Furthermore, the drive mechanism is a motor, which is fixed to the outside of the base by a mounting bracket. The output end of the drive mechanism is connected to a gear shaft, which extends into the base. A set of end caps is rotatably connected to the gear shaft, and the two end caps are fixed to the front and rear sides of the base, respectively.

[0018] Furthermore, the gear and rack mechanism includes a set of gears and a set of racks. The set of racks is fixed on both sides of the bottom of the worktable, and both gears are fixed on the gear shaft. The gears are meshed with the racks.

[0019] Furthermore, the base includes an upper base and a lower base, each with a semi-shell in the middle. The upper base and the lower base are fixed by positioning pins and fasteners. A sealed cavity is formed between the semi-shell of the upper base, the semi-shell of the lower base, and the two end caps. The gear shaft and the two gears are located within the sealed cavity.

[0020] Furthermore, the upper base has a set of openings in the middle, and the gear has a through opening above it.

[0021] Furthermore, several reinforcing rods are provided inside the upper and lower bases and at positions away from the semi-shell, and several weight-reducing holes are provided on both the upper and lower bases.

[0022] Furthermore, a dovetail groove is fixed on one side of the bottom of the workbench, an upper boss is fixed on the other side of the bottom of the workbench, a track that is slidably connected to the dovetail groove is fixed on one side of the top of the upper base, and a lower boss that slides with the upper boss is fixed on the other side of the top of the upper base.

[0023] The present invention has the following beneficial effects:

[0024] 1. This invention uses a novel running-in device to simulate the circulation of the rolling element in the pipe and the reverser, and simulates the actual situation of the reverser when the rolling linear guide pair moves, that is, the simulated guide rail is stationary and the slider slides back and forth. The test results are real and reliable. This device does not contain the slider body, thus filling the gap in the field for reverser testing.

[0025] 2. This invention, through the cooperation of the drive mechanism and the gear and rack mechanism, can simulate the reciprocating translation of the worktable on the base without manual intervention, and is stable and reliable.

[0026] 3. The pipe and lever mechanism of the present invention are easy to install and remove. By changing the specifications of the pipe and lever mechanism, different models of reversers can be tested, making it applicable to a wide range of applications.

[0027] 4. This invention can change the movement speed of the steel ball by adjusting the rotation speed of the drive mechanism, and is suitable for testing various performance characteristics of the directional device of the rolling linear guide pair under different working conditions, with a wide testing range.

[0028] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the running-in device for testing the performance of a rolling linear guide reverser according to the present invention.

[0031] Figure 2 This is an exploded view of the structure of the present invention after removing the inverter and the inverter fixing mechanism;

[0032] Figure 3 Exploded view of the structure of the inverter and inverter fixing mechanism;

[0033] Figure 4 Exploded view of a portion of the paddle mechanism, base, pipes, and support components;

[0034] Figure 5 A schematic diagram of the worktable and the shift mechanism;

[0035] Figure 6 Exploded view of the drive mechanism, gear shaft, gear, and end cover;

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1-Base, 2-Workbench, 3-Pulley mechanism, 4-Reversing device, 5-Pipe, 6-Reversing device fixing mechanism, 7-Drive mechanism, 8-Support component, 101-Upper base, 102-Lower base, 103-Half-shell, 104-Opening, 105-Reinforcing rod, 106-Weight reduction hole, 107-Railway, 108-Lower boss, 201-Strip groove, 202-Dovetail groove, 203-Boss 301-Straight rod, 302-Support rod, 303-Pulley, 501-Slot, 601-Connecting plate, 602-L-shaped baffle, 603-Four sets of through holes, 604-Push plate, 605-Positioning piece, 606-Fasting screw, 701-Mounting base, 702-Gear shaft, 703-End cover, 704-Gear, 705-Rack, 801-Base plate, 802-Vertical plate, 803-Support opening. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figure 1-5 As shown, the present invention is a running-in device for testing the performance of a rolling linear guide reverser, comprising a base 1, a worktable 2, a paddle mechanism 3, two reversers 4, four sets of pipes 5, and two reverser fixing mechanisms 6.

[0040] The worktable 2 is slidably mounted on the top of the base 1. A drive mechanism 7 is fixed on the outside of the base 1. A gear and rack mechanism is provided between the output end of the drive mechanism 7 and the worktable 2. The gear and rack mechanism is located inside the base 1.

[0041] The reverser fixing mechanism 6 includes a connecting plate 601 and two L-shaped baffles 602;

[0042] The connecting plate 601 has four sets of openings 603. The two ends of the four sets of pipes 5 are respectively fixed in the openings 603 of the two connecting plates 601. The reverser 4 is fixed to the outside of the connecting plate 601 by screws. The outside of the connecting plate 601 is provided with a positioning piece 605 that cooperates with the reverser 4.

[0043] The bottom of the vertical side of the L-shaped baffle 602 is fixed to the end face of the worktable 2 by screws. The horizontal side of the L-shaped baffle 602 covers the top surface of the inverter 4. A pad 604 is provided between the inverter 4 and the L-shaped baffle 602. The pad 604 is fixed to the worktable 2 by screws.

[0044] Each set of pipes 5 is connected at both ends to the two ends of the turning channels on the two reversers 4 to form a roller channel. The pipes 5 inside the roller channel have slots 501.

[0045] The lever mechanism 3 includes a straight rod 301. A strip groove 201 is provided on the top of the workbench 2. The straight rod 301 passes through the strip groove 201 and is fixed to the top of the base 1 through a flange. Two support rods 302 are fixed on both sides of the straight rod 301. The support rods 302 pass through the slot 501 and are fixed with two levers 303. The gap between the levers 303 is set in the pipe 5.

[0046] Among them, such as Figure 1-2 and Figure 4 As shown, it also includes two support members 8. The support member 8 includes a base plate 801, which is fixed to the top surface of the base 1 by fasteners. Vertical plates 802 are fixed at both ends of the bottom of the base plate 801. Two support openings 803 are opened on the front and rear sides of the vertical plates 802. The four sets of pipes 5 are respectively set in the eight support openings 803 on the support member 8.

[0047] The roller channel contains several rolling elements, and two paddles 303 are positioned between adjacent rolling elements.

[0048] Among them, such as Figure 3 As shown, the connecting plate 601 has several fastening screws 606 on its peripheral side. The fastening screws 606 extend into the port 603, and the end of the pipe 5 is fixed in the port 603 by the fastening screws 606.

[0049] Among them, such as Figure 1-2 and Figure 4-6 As shown, the drive mechanism 7 is a motor. The drive mechanism 7 is fixed to the outside of the base 1 by the mounting base 701. The output end of the drive mechanism 7 is connected to a gear shaft 702. The gear shaft 702 extends into the base 1. A set of end caps 703 are rotatably connected to the gear shaft 702. The two end caps 703 are fixed to the front and rear sides of the base 1, respectively.

[0050] Among them, such as Figure 1-2 and Figure 4-6 As shown, the gear and rack mechanism includes a set of gears 704 and a set of racks 705. The set of racks 705 is fixed on both sides of the bottom of the worktable 2, and both gears 704 are fixed on the gear shaft 702. The gears 704 and the racks 705 are meshed and connected.

[0051] Among them, such as Figure 1-2 As shown, the base 1 includes an upper base 101 and a lower base 102. Both the upper base 101 and the lower base 102 are provided with a half-shell 103 in the middle. The upper base 101 and the lower base 102 are fixed by positioning pins and fasteners. A sealed cavity is formed between the half-shell 103 of the upper base 101, the half-shell 103 of the lower base 102 and the two end caps 703. The gear shaft 702 and the two gears 704 are all located in the sealed cavity.

[0052] Among them, such as Figure 4 As shown, an opening 104 is provided in the middle of the upper base 101, and the gear 704 passes through the opening 104.

[0053] Among them, such as Figure 1-2 As shown, several reinforcing rods 105 are provided inside the upper base 101 and the lower base 102 at a position away from the semi-shell 103, and several weight-reducing holes 106 are provided on both the upper base 101 and the lower base 102.

[0054] Among them, such as Figure 1-3 and Figure 5 As shown, a dovetail groove 202 is fixed on one side of the bottom of the worktable 2, and an upper boss 203 is fixed on the other side of the bottom of the worktable 2. A track 107 that is slidably connected to the dovetail groove 202 is fixed on one side of the top of the upper base 101, and a lower boss 108 that is slidably connected to the upper boss 203 is fixed on the other side of the top of the upper base 101. The worktable 2 moves left and right on the base 1 through the dovetail groove 202 and the upper boss 203.

[0055] Among them, such as Figure 2 and Figure 6 As shown, gear 704 is radially positioned relative to gear shaft 702 via a key, and axially positioned via a sleeve and a shoulder on gear shaft 702.

[0056] The end cover 703 is rotatably connected to the gear shaft 702 via a bearing. The inner side of the bearing is in contact with the end of the sleeve used to fix the gear 704. The end cover 703 is fixed to the base 1 by screws, thereby realizing the fixation between the gear shaft 702 and the gear 704 and the base 1. One end cover 703 is a complete cover to achieve closure, and the other end cover 703 is provided with a central hole. The gear shaft 702 passes through the central hole and a seal is provided between them, so that the end of the gear shaft 702 extends out for connection with the coupling.

[0057] The drive mechanism 7 is fixed to the mounting base 701 by bolts and nuts. The motor shaft passes through the mounting base 701 and is connected to the driving end of the coupling by a key. The driven end of the coupling is connected to the end of the gear shaft 702 by a key.

[0058] The working principle of this invention is as follows: the output end of the drive mechanism 7 rotates the gear shaft 702, the rotation of the gear shaft 702 drives the rotation of the gear 704, thereby driving the rack 705 to move. The movement of the rack 705 drives the worktable 2 to move along the track 107 and the lower boss 108, finally forming the movement of all components fixed on the worktable 2, including the pipe 5 and the reverser 4, while the paddle 303 is fixed on the base 1 and is in a stationary state. The relative movement of the pipe 5, the reverser 4 and the paddle 303 causes the rolling element to circulate in the pipe 5 and the reverser 4.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A running-in device for performance testing of a reverse device of a rolling linear guide, characterized in that: It includes base (1), workbench (2), dial piece mechanism (3), two reversers (4), four groups of pipes (5) and two reverser fixing mechanisms (6); The workbench (2) is slidably arranged on the top of the base (1), and a driving mechanism (7) is fixed to the outer side of the base (1); a gear and rack mechanism is arranged between the output end of the driving mechanism (7) and the workbench (2), and the gear and rack mechanism is arranged in the base (1); The reverser fixing mechanism (6) comprises a connecting plate (601) and two L-shaped blocking pieces (602); Four groups of through openings (603) are formed in the connecting plate (601), and the two ends of the four groups of pipes (5) are fixed in the through openings (603) of the two connecting plates (601) respectively; the reverser (4) is fixed to the outer side of the connecting plate (601) by screws; and a positioning piece (605) matched with the reverser (4) is arranged on the outer side of the connecting plate (601). The bottom of the vertical edge of the L-shaped blocking piece (602) is fixed to the end face of the workbench (2) by screws, the horizontal edge of the L-shaped blocking piece (602) covers the top surface of the reverser (4), and a backing plate (604) is arranged between the reverser (4) and the L-shaped blocking piece (602), and the backing plate (604) is fixed to the workbench (2) by screws. Each group of pipes (5) comprises two pipe bodies arranged transversely, the two ends of the two pipe bodies are connected with the two ends of the corresponding turning channels of the two reversers (4) respectively, and a roller channel is formed by the two pipe bodies; and a slot (501) is formed in the side wall of one of the pipe bodies of each group of pipes (5). The dial piece mechanism (3) comprises a straight rod (301), a strip-shaped slot (201) is formed in the top of the workbench (2), the straight rod (301) penetrates through the strip-shaped slot (201) and is fixed to the top of the base (1) by a flange, two supporting rods (302) are fixed to the two sides of the straight rod (301), two dial pieces (303) are fixed to the supporting rods (302) which penetrate through the slot (501), and the dial pieces (303) are matched with the inner wall of the pipe (5) in which the slot (501) is formed.

2. The running-in device for performance test of a reverse device of a linear rolling guide according to claim 1, wherein Further comprising two supporting members (8), the supporting member (8) comprises a bottom plate (801), the bottom plate (801) is fixed to the top surface of the base (1) by fasteners, vertical plates (802) are fixed to the bottom of the two ends of the bottom plate (801), two supporting openings (803) are formed in the front side and the rear side of the vertical plate (802), and each pipe body of the four groups of pipes (5) can slidably penetrate through the eight supporting openings (803) on the supporting member (8).

3. The running-in device for performance test of a reverse device of a linear rolling guide according to claim 1, wherein A plurality of rolling bodies are arranged in the roller channel, and the two dial pieces (303) in the pipe (5) in which the slot (501) is formed are located between two adjacent rolling bodies in the pipe (5).

4. The running-in device for performance test of a reverse device of a linear rolling guide according to claim 1, wherein A plurality of fastening screws (606) are arranged on the circumferential surface of the connecting plate (601), the fastening screws (606) extend into the through openings (603), and the end portions of the pipes (5) are fixed in the through openings (603) by the fastening screws (606).

5. The running-in device for performance test of a reverse device of a linear guide rail according to claim 1, characterized in that, The driving mechanism (7) is a motor, the driving mechanism (7) is fixed outside the base (1) through the mounting seat (701), the output end of the driving mechanism (7) is fixed with the gear shaft (702) through the shaft coupling, the gear shaft (702) extends into the base (1), a group of end covers (703) are rotatably connected on the gear shaft (702), and the two end covers (703) are fixed on the front side and the rear side of the base (1) respectively.

6. The running-in device for performance test of a reverse device of a rolling linear guide rail according to claim 5, characterized in that, The gear and rack mechanism comprises a group of gears (704) and a group of racks (705), the group of racks (705) are fixed on the two sides of the bottom of the workbench (2), and the two gears (704) are fixed on the gear shaft (702); the gears (704) are in meshing connection with the racks (705).

7. The running-in device for performance test of a reverse device of a rolling linear guide rail according to claim 6, characterized in that, The base (1) comprises an upper base (101) and a lower base (102), the middle parts of the upper base (101) and the lower base (102) are provided with half shells (103), the upper base (101) and the lower base (102) are fixed through the positioning pin and the fastener, the half shells (103) of the upper base (101) and the lower base (102) and the two end covers (703) form a sealed cavity, and the gear shaft (702) and the two gears (704) are located in the sealed cavity.

8. The running-in device for performance test of a reverse device of a rolling linear guide rail according to claim 7, characterized in that, A group of openings (104) are formed in the middle part of the upper base (101), and the gears (704) penetrate through the openings (104).

9. The running-in device for performance test of a reverse device of a rolling linear guide rail according to claim 7, characterized in that, A plurality of reinforcing rods (105) are arranged in the upper base (101) and the lower base (102) and away from the half shells (103), and a plurality of lightening holes (106) are formed in the upper base (101) and the lower base (102).

10. The running-in device for performance test of a reverse device of a rolling linear guide rail according to claim 7, characterized in that, One side of the bottom of the workbench (2) is fixedly connected with a dovetail groove (202), the other side of the bottom of the workbench (2) is fixedly connected with an upper boss (203), one side of the top of the upper base (101) is fixedly connected with a track (107) in sliding connection with the dovetail groove (202), and the other side of the top of the upper base (101) is fixedly connected with a lower boss (108) in sliding connection with the upper boss (203).

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