Automatic oiling device for steering system rack

Abstract

The utility model relates to an automatic oiling device for a steering system rack, which belongs to the field of steering gears and comprises a main frame, a rack positioning component, an oiling component, a rack limiting component, a positioning rod, a positioning rod limiting component and a controller. The rack positioning assembly, the oiling assembly and the positioning rod limiting assembly are sequentially fixed to the main frame in the horizontal direction at intervals, the rack limiting assembly is detachably connected with the main frame, one end of the positioning rod is detachably connected with the positioning rod limiting assembly, and the other end of the positioning rod is detachably connected with the oiling assembly. The other end of the positioning rod is detachably connected with the rack limiting assembly, the oiling assembly and the rack limiting assembly are both in communication connection with the controller, and the rack oiling device has the beneficial effect that uneven rack oiling is avoided.

Description

Technical Field

[0001] The utility model relates to the field of steering gears, in particular to an automatic oiling device for a rack of a steering system. Background Art

[0002] Currently, the grease for the rack in an automotive steering system is typically weighed and then manually applied to the rack. However, manual lubrication often results in uneven application, which in turn affects product quality.

[0003] Therefore, an automatic oiling device for a steering system rack is provided to solve the problems raised in the above background technology. Utility Model Content

[0004] The technical problem solved by the utility model is how to avoid uneven oiling of the rack.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: A steering system rack automatic oiling device comprises a main frame, a rack positioning assembly, an oiling assembly, a rack limiting assembly, a positioning rod, a positioning rod limiting assembly and a controller, the main frame is fixed with the rack positioning assembly, the oiling assembly and the positioning rod limiting assembly in sequence and spaced apart in the horizontal direction, the rack limiting assembly is detachably connected to the main frame, one end of the positioning rod is detachably connected to the positioning rod limiting assembly, and the other end of the positioning rod is detachably connected to the rack limiting assembly, and the oiling assembly and the rack limiting assembly are both communicatively connected to the controller.

[0006] The beneficial effect of the present invention is as follows: after the staff selects different types of positioning rods according to different rack models, the staff first positions the positioning rod between the rack limit assembly and the positioning rod limit assembly of the main frame, and then positions one end of the rack with the rack limit assembly. The other end of the rack passes through the oiling assembly and is locked and positioned with the rack positioning assembly. Subsequently, the rack oiling mechanism moving device drives the rack to move horizontally to the left. When the serrations on the rack tooth surface are flush with the oiling assembly, the rack stops moving. The controller drives the oiling assembly to clamp the rack. After clamping is completed, the rack continues to move horizontally to the left, and then drives the oiling assembly to oil the tooth surface and back of the moving rack, thereby achieving automatic and uniform oiling of the rack and improving product quality.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a grease box, which is located between the oiling assembly and the rack limiting assembly and is fixedly connected to the main frame.

[0009] The beneficial effect of adopting the above further solution is that the grease box can be used to collect grease dripping from the oiling component during the process of oiling the rack, thereby preventing grease from dripping outside and damaging the device, and also reducing grease waste.

[0010] Furthermore, the grease box has a first groove at one end facing the oiling assembly, and has a second opening at a side of the grease box away from the main frame.

[0011] The beneficial effect of adopting the above further solution is that the first groove in the grease box can collect grease dripping from the oiling assembly during the process of oiling the rack, and the second opening of the grease box can guide the rack.

[0012] Furthermore, the positioning rod limit assembly includes a fixed block and a third position sensor, one end of the fixed block is fixedly connected to the main frame, the other end of the fixed block is detachably connected to one end of the positioning rod, and the other end of the fixed block is provided with a plurality of the third position sensors distributed along the circumferential direction, and the plurality of the third position sensors are all communicatively connected to the controller.

[0013] The beneficial effect of adopting this further solution is that after selecting different types of positioning rods corresponding to different rack models, the staff first connects one end of the positioning rod to the fixed block, and then connects the other end of the positioning rod to the rack limit assembly to complete the positioning of the positioning rod. Multiple third position sensors can be used to detect whether one end of the positioning rod is aligned with the fixed block, thereby improving the efficiency of oiling.

[0014] Furthermore, the rack limiting assembly includes a slide rail, a movable plate, a hand push rod, a rack limiting cylinder, a second position sensor, a support plate, a first protrusion, a second protrusion, a fixing frame, a locking block and a locking bolt. The middle portion of the main frame has a first through hole, the two sides of the first through hole are respectively fixed with the slide rail, one end of one side of the movable plate is fixed with the locking block, the locking block is slidably connected to the slide rail, a second through hole is provided in the locking block, the locking bolt passes through the locking block and the slide rail, and is threadedly connected to the slide rail, and the other end of one side of the movable plate is fixed with the locking block. The slide rail is slidably connected, the rack limiting cylinder is fixed to the middle part of one side of the movable plate, the hand push rod and the support plate are fixed at intervals on the other side of the movable plate, the first protrusion is fixed to one end of the support plate facing the rack limiting cylinder, the second protrusion and the fixing frame are fixed at intervals along the vertical direction on the other end of the support plate, the second position sensor is fixed on the fixing frame, the other end of the positioning rod is detachably connected to the second protrusion, and the rack limiting cylinder and the second position sensor are both communicatively connected to the controller.

[0015] The beneficial effect of adopting this further solution is as follows: the operator releases the locking block and the slide rail by adjusting the locking bolt, allowing the movable plate to slide along the slide rail. After one end of the positioning rod is connected to the fixed block, the operator uses the push rod to move the movable plate toward the positioning rod until the other end of the positioning rod connects with the second protrusion of the support plate, completing the positioning of the positioning rod. Subsequently, the locking bolt is adjusted again to lock the locking block and the slide rail, preventing the movable plate from moving. The operator then connects one end of the rack to the first protrusion of the support plate and passes the other end of the rack through the second opening and the oiling assembly, and engages with the rack positioning assembly.

[0016] A second position sensor on the mounting bracket detects whether the other end of the positioning rod is aligned with the support plate, improving lubrication efficiency. The controller drives the drive end of the rack limiter cylinder upward in the vertical direction, abutting the rack and preventing it from shifting as it moves vertically up and down, ensuring even lubrication of the rack.

[0017] Furthermore, it also includes a support block, and the driving end of the rack limiting cylinder is fixed with the support block.

[0018] The beneficial effect of adopting the above further solution is that the driving end of the rack limiting cylinder can drive the support block to move in the vertical direction, so that the support block abuts against or moves away from the rack.

[0019] Furthermore, it also includes a connecting plate, the middle part of one side of the movable plate is fixedly connected to one end of the connecting plate, and the other end of the connecting plate is fixedly connected to the rack limiting cylinder.

[0020] Furthermore, the rack positioning assembly includes a positioning plate and a first position sensor, one side of the positioning plate is fixedly connected to the main frame, the other side of the positioning plate has a first opening, the first opening has a second groove at one end away from the oiling assembly, the first position sensor is fixed to the other end of the positioning plate, and the first position sensor is communicatively connected to the controller.

[0021] The beneficial effect of adopting the above further solution is as follows: the other end of the rack passes through the second opening and the oiling assembly in sequence, and is positioned in the first opening of the positioning plate. A bearing is then mounted on the other end of the rack and engaged with the second groove, thereby positioning the other end of the rack on the positioning plate. The first position sensor can be used to verify that the other end of the rack is properly positioned with the positioning plate.

[0022] Furthermore, the oiling assembly includes a jaw cylinder, a first jaw, a second jaw, a first oil tank, a second oil tank, a first metering valve and a second metering valve, the jaw cylinder is fixed on the main frame, the first oil tank and the second oil tank are fixed on the jaw cylinder at intervals, the jaw cylinder is transmission-connected to the first jaw and the second jaw, and enables the first jaw and the second jaw to move toward or away from each other, the facing ends of the first oil tank and the second oil tank are fixedly connected to the first jaw and the second jaw respectively, the inner walls of the facing ends of the first jaw and the second jaw are provided with a plurality of oil outlet holes at intervals, the first metering valve and the second metering valve are fixed on the main frame at intervals, the first oil tank, the first metering valve and the first jaw are connected in sequence, the second oil tank, the second metering valve and the second jaw are connected in sequence, and the first metering valve and the second metering valve are both communicatively connected to the controller.

[0023] The beneficial effect of adopting the above further solution is that the jaw cylinder can drive the first and second jaws to clamp or release the rack. The first and second metering valves can respectively control the amount of grease flowing out of the first and second oil tanks through the oil outlet holes, thereby lubricating the tooth surfaces and tooth backs of the rack respectively, thereby achieving uniform and automatic lubrication of the tooth surfaces and tooth backs of the rack.

[0024] Furthermore, one end of the first clamping jaw has a trapezoidal groove, and the second clamping jaw has a semicircular groove, and the trapezoidal groove and the semicircular groove form a third groove for the rack to pass through.

[0025] The beneficial effect of adopting the above further solution is that the third groove fits tightly with the outer wall of the rack, reducing the gap between the rack and the third groove, and preventing grease from dripping outside and causing grease waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the automatic rack oiling device of the utility model;

[0027] Figure 2 This is a schematic diagram of the rack of the utility model being oiled;

[0028] Figure 3 This is a partial schematic diagram of the automatic rack oiling device of the utility model;

[0029] Figure 4 This is a side view of the automatic rack oiling device of the utility model;

[0030] Figure 5 This is a bottom view of the automatic rack oiling device of the utility model;

[0031] Figure 6 This is a structural diagram of the positioning plate of the utility model;

[0032] Figure 7 This is a schematic structural diagram of the grease box of the utility model;

[0033] Figure 8 This is a structural diagram of the oiling component of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1. Main frame; 2. Rack positioning assembly; 201. Positioning plate; 202. First position sensor; 203. Bearing; 204. Second groove; 205. First opening; 3. Oiling assembly; 301. Gripping jaw cylinder; 302. First gripping jaw; 303. Second gripping jaw; 304. First oil tank; 305. Second oil tank; 306. First metering valve; 307. Third groove; 308. Second metering valve; 4. Rack limiting assembly; 401. Slide rail; 402. Moving plate; 403 , hand push rod; 404, rack limit cylinder; 405, second position sensor; 406, support plate; 407, first protrusion; 408, second protrusion; 409, fixing frame; 410, locking block; 411, locking bolt; 412, support block; 413, connecting plate; 5, positioning rod; 6, positioning rod limit assembly; 601, fixing block; 602, latch; 603, third position sensor; 7, grease box; 701, first groove; 702, second opening; 8, rack. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] like Figures 1-8 As shown, this embodiment provides an automatic oiling device for the rack of a steering system, including a main frame 1, a rack positioning assembly 2, an oiling assembly 3, a rack limiting assembly 4, a positioning rod 5, a positioning rod limiting assembly 6 and a controller. The main frame 1 is fixed with the rack positioning assembly 2, the oiling assembly 3 and the positioning rod limiting assembly 6 in sequence at intervals along the horizontal direction. The rack limiting assembly 4 is detachably connected to the main frame 1, one end of the positioning rod 5 is detachably connected to the positioning rod limiting assembly 6, and the other end of the positioning rod 5 is detachably connected to the rack limiting assembly 4, and the oiling assembly 3 and the rack limiting assembly 4 are both communicatively connected to the controller.

[0038] After selecting different types of positioning rods 5 according to the models of different racks 8, the staff first positioned the positioning rod 5 between the rack limit assembly 4 and the positioning rod limit assembly 6 of the main frame 1. Then, one end of the rack 8 was aligned with the rack limit assembly 4. The other end of the rack 8 passed through the oiling assembly 3 and was locked in place with the rack positioning assembly 2. Subsequently, the rack oiling mechanism's moving device drove the rack 8 to move horizontally to the left. When the serrations on the tooth surface of the rack 8 were aligned with the oiling assembly 3, the rack stopped moving. The controller drove the oiling assembly 3 to clamp the rack 8. After clamping, the rack 8 continued to move horizontally to the left, and then drove the oiling assembly 3 to oil the tooth surface and back of the moving rack 8, achieving automatic and uniform oiling of the rack and improving product quality.

[0039] Specifically, both ends of the positioning rod 5 can be sleeved on one end of the rack limiting assembly 4 and the positioning rod limiting assembly 6 respectively.

[0040] Specifically, such as Figure 1 As shown, the tooth surface of the rack 8 has serrations, and the tooth back is a smooth surface.

[0041] When the serrations on the tooth surface of the rack 8 are flush with the end of the oiling assembly 3 near the rack stop assembly 4, the controller can drive the oiling assembly 3 to oil the rack 8. When the oiling assembly 3 oils the rack 8, the rack oiling mechanism moving device continuously drives the rack 8 to move horizontally to the left, achieving simultaneous oiling of the rack 8 as it moves.

[0042] Specifically, lubricating the rack 8 only begins when the serrations on the tooth surface of the rack 8 are flush with the end of the oiling assembly 3 near the rack stop assembly 4, rather than lubricating the rack 8 from the outset. This avoids wasted oil and saves costs. Furthermore, lubricating only the serrations and tooth backs of the rack 8 allows for cooperation with conventional rack pressing blocks, reducing friction and noise.

[0043] Specifically, the rack oiling mechanism's movable device is fixedly mounted on the left side of the main frame 1 (not shown). It includes a clamping cylinder and a movable assembly. The clamping cylinder is used to clamp the other end of the rack 8. The movable assembly's drive end is connected to the clamping cylinder. After the clamping cylinder clamps the rack 8, the movable assembly drives the rack 8 to move horizontally to the left.

[0044] The rack 8 can also be manually clamped to drive the rack 8 to move leftward in the horizontal direction.

[0045] Among them, such as Figure 2As shown, one end of the rack 8 can be sleeved on the other end of the rack limiting assembly 4. When the rack oiling mechanism moving device clamps the other end of the rack 8 and drives the rack 8 to move to the left at a uniform speed in the horizontal direction, one end of the rack 8 is in a separated state from the rack limiting assembly 4.

[0046] On the basis of the above solution, a grease box 7 is further included. The grease box 7 is located between the oiling assembly 3 and the rack limiting assembly 4 and is fixedly connected to the main frame 1 .

[0047] The grease box 7 can be used to collect grease dripping from the oiling component 3 during the process of oiling the rack 8, so as to prevent the grease from dripping outside and damaging the device, and also reduce the waste of grease.

[0048] Specifically, the rack positioning assembly 2, the oiling assembly 3 and the grease box 7 are arranged parallel to each other.

[0049] In actual production use, the oiling device is placed in a vertical direction as a whole. Therefore, the grease dripping from the oiling component 3 during the process of oiling the rack 8 will drip into the grease box 7 in the vertical direction.

[0050] On the basis of the above solution, the grease box 7 has a first groove 701 on one end facing the oiling assembly 3 , and has a second opening 702 on the side away from the main frame 1 .

[0051] The first groove 701 in the grease box 7 can collect the grease dripping from the oiling assembly 3 during the process of oiling the rack 8. The second opening 702 of the grease box 7 can guide the rack 8.

[0052] Specifically, the other end of the rack 8 can pass through the second opening 702 and the oiling assembly 3 and be engaged with the rack positioning assembly 2 .

[0053] Specifically, one side of the grease box 7 can be detachably connected to the main frame 1. When the first groove 701 is filled with grease, it can be removed for replacement and the grease can be reused.

[0054] In this embodiment, the grease box 7 is a square box body. The grease box 7 can also be set to other shapes according to actual conditions, such as a rectangular box body or an elliptical box body.

[0055] On the basis of the above scheme, the positioning rod limit assembly 6 includes a fixed block 601 and a third position sensor 603, one end of the fixed block 601 is fixedly connected to the main frame 1, and the other end of the fixed block 601 is detachably connected to one end of the positioning rod 5, and the other end of the fixed block 601 is provided with multiple third position sensors 603 distributed along the circumferential direction, and the multiple third position sensors 603 are all communicatively connected to the controller.

[0056] After selecting different types of positioning rods 5 corresponding to different rack models, the staff first connects one end of the positioning rod 5 to the fixed block 601, and then connects the other end of the positioning rod 5 to the rack limit assembly 4, thereby completing the positioning of the positioning rod 5. Multiple third position sensors 603 can be used to detect whether one end of the positioning rod 5 is aligned with the fixed block 601, thereby improving the efficiency of oiling.

[0057] Specifically, in this embodiment, one end of the positioning rod 5 can be sleeved in the fixing block 601 , and the other end of the positioning rod 5 can be sleeved in the rack limiting assembly 4 .

[0058] In this embodiment, a latch 602 may be further included. The latch 602 passes through the fixing block 601 and is fixed to the positioning rod 5 to increase the stability of the positioning rod 5.

[0059] Alternatively, one end of the positioning rod 5 is threadedly connected to the fixing block 601, and the other end of the positioning rod 5 is threadedly connected to the rack limit assembly 4. The fixing block 601 has an internal thread, and one end of the positioning rod 5 has an external thread matching the internal thread.

[0060] Specifically, in this embodiment, there are two third position sensors 603 , which are spaced apart and distributed at one end of the fixed block 601 .

[0061] Specifically, this embodiment further includes a first signal light located on one side of the third position sensor 603 and in communication with the controller. When one end of the positioning rod 5 is positioned with the fixing block 601, the third position sensor 603 sends a signal to the controller, which then illuminates the first signal light, allowing staff to promptly check whether the positioning rod 5 is positioned.

[0062] On the basis of the above scheme, the rack limiting assembly 4 includes a slide rail 401, a movable plate 402, a hand push rod 403, a rack limiting cylinder 404, a second position sensor 405, a support plate 406, a first protrusion 407, a second protrusion 408, a fixing frame 409, a locking block 410 and a locking bolt 411. The middle part of the main frame 1 has a first through hole, and the two sides of the first through hole are respectively fixed with the slide rail 401, and one end of one side of the movable plate 402 is fixed with the locking block 410, and the locking block 410 is slidably connected to the slide rail 401. The locking block 410 has a second through hole, and the locking bolt 411 passes through the locking block 410 and the slide rail 401 and is threadedly connected to the slide rail 401. The other end of one side of the plate 402 is slidably connected to the slide rail 401, and the rack limiting cylinder 404 is fixed in the middle of one side of the movable plate 402, and the hand push rod 403 and the support plate 406 are fixed at intervals on the other side of the movable plate 402, and the first protrusion 407 is fixed to one end of the support plate 406 facing the rack limiting cylinder 404, and the second protrusion 408 and the fixing frame 409 are fixed at intervals in the vertical direction at the other end of the support plate 406, and the second position sensor 405 is fixed on the fixing frame 409, and the other end of the positioning rod 5 is detachably connected to the second protrusion 408, and the rack limiting cylinder 404 and the second position sensor 405 are both communicatively connected to the controller.

[0063] By adjusting the locking bolt 411, the staff can release the lock between the locking block 410 and the slide rail 401, allowing the movable plate 402 to slide along the slide rail 401. After one end of the positioning rod 5 is connected to the fixed block 601, the staff uses the push rod 403 to move the movable plate 402 toward the positioning rod 5 until the other end of the positioning rod 5 connects with the second protrusion 408 of the support plate 406, completing the positioning of the positioning rod 5. Subsequently, the staff adjusts the locking bolt 411 again to lock the locking block 410 and the slide rail 401, preventing the movable plate 402 from moving. The staff then connects one end of the rack to the first protrusion 407 of the support plate 406, and passes the other end of the rack through the second opening 702 and the oiling assembly 3, and engages with the rack positioning assembly 2.

[0064] A second position sensor 405 on the mounting bracket 409 can be used to detect whether the other end of the positioning rod 5 is aligned with the support plate 406, thereby improving lubrication efficiency. The controller can drive the driving end of the rack limit cylinder 404 to move vertically upward, abutting the rack to prevent the rack from shifting during vertical movement and ensure uniform lubrication of the rack.

[0065] Specifically, the locking bolt 411 passes through the locking block 410 and the slide rail 401 and is threadedly connected to the slide rail 401. Therefore, by rotating the locking bolt 411 clockwise or counterclockwise, the locking block 410 and the slide rail 401 can be locked or loosened.

[0066] The slide rail 401 is provided with a plurality of through holes at intervals to facilitate the passage of the locking bolts 411 .

[0067] The length of the push rod 403 is almost the same as the width of a human palm, which makes it convenient for a worker to push the movable plate 402 to move left and right in the horizontal direction by holding the push rod 403 .

[0068] The rack limiting cylinder 404 may be a lifting cylinder.

[0069] Specifically, one end of the rack 8 is detachably connected to the first protrusion 407 , and the other end of the rack passes through the grease box 7 and the oiling assembly 3 , and is engaged with the rack positioning assembly 2 .

[0070] Furthermore, this embodiment includes a second signal light located on one side of the second position sensor 405 and in communication with the controller. When the other end of the positioning rod 5 is aligned with the second protrusion 408, the second position sensor 405 sends a signal to the controller, which illuminates the second signal light, allowing personnel to promptly check whether the other end of the positioning rod 5 is aligned.

[0071] In addition, one end of the rack limiting cylinder 404 is fixedly connected to the middle part of one side of the movable plate 402 through the connecting plate 413 .

[0072] Specifically, in this embodiment, the first protrusion 407 and the second protrusion 408 are both circular protrusions. The first protrusion 407 is sleeved within one end of the rack 8, and the second protrusion 408 is sleeved within the other end of the positioning rod 5. The second position sensor 405 is fixed to the end of the fixing bracket 409 facing the fixing block 601.

[0073] Alternatively, one end of the positioning rod 5 is threadedly connected to the fixing block 601, and the other end of the positioning rod 5 is threadedly connected to the second protrusion 408. The second protrusion 408 has an internal thread, and the other end of the positioning rod 5 has an external thread matching the internal thread.

[0074] The fixing frame 409 is correspondingly located on the back side of the first protrusion 407. The two slide rails 401 are arranged in parallel along the horizontal direction.

[0075] On the basis of the above solution, a support block 412 is further included, and the driving end of the rack limiting cylinder 404 is fixed with the support block 412 .

[0076] The driving end of the rack limiting cylinder 404 can drive the support block 412 to move in the vertical direction, so that the support block 412 abuts against or moves away from the rack 8.

[0077] On the basis of the above solution, a connecting plate 413 is further included. The middle part of one side of the movable plate 402 is fixedly connected to one end of the connecting plate 413 , and the other end of the connecting plate 413 is fixedly connected to the rack limiting cylinder 404 .

[0078] Based on the above scheme, the rack positioning assembly 2 includes a positioning plate 201 and a first position sensor 202. One side of the positioning plate 201 is fixedly connected to the main frame 1. The other side of the positioning plate 201 has a first opening 205. The first opening 205 has a second groove 204 at the end away from the oiling assembly 3. The first position sensor 202 is fixed to the other end of the positioning plate 201. The first position sensor 202 is communicatively connected to the controller.

[0079] The other end of the rack 8 passes through the second opening 702 and the oiling assembly 3 in sequence, and is located in the first opening 205 of the positioning plate 201. The bearing 203 is then sleeved onto the other end of the rack 8 and engaged with the second groove 204, thereby positioning the other end of the rack 8 on the positioning plate 201. The first position sensor 202 can be used to verify that the other end of the rack 8 is properly positioned with the positioning plate 201.

[0080] Specifically, this embodiment includes a third signal light, which is located on one side of the first position sensor 202 and is communicatively connected to the controller. When the other end of the rack is aligned with the positioning plate 201, the first position sensor 202 sends a signal to the controller, which then turns on the third signal light.

[0081] Specifically, in this embodiment, the second opening 702 is in an inverted U shape.

[0082] The positioning plate 201 and the grease box 7 are arranged parallel to each other.

[0083] Specifically, the clamping cylinder of the rack oiling mechanism moving device clamps the rack 8 through the bearing 203 .

[0084] On the basis of the above scheme, the oiling assembly 3 includes a clamping jaw cylinder 301, a first clamping jaw 302, a second clamping jaw 303, a first oil tank 304, a second oil tank 305, a first metering valve 306 and a second metering valve 308, the clamping jaw cylinder 301 is fixed on the main frame 1, the first oil tank 304 and the second oil tank 305 are fixed on the clamping jaw cylinder 301 at intervals, the clamping jaw cylinder 301 is transmission-connected with the first clamping jaw 302 and the second clamping jaw 303, and enables the first clamping jaw 302 and the second clamping jaw 303 to move toward or away from each other, the first oil tank 304 and the second oil tank 305 are fixed to the main frame 1, and the first oil tank 304 and the second oil tank 305 are fixed to the main frame 1. The opposing ends of the box 305 are fixedly connected to the first clamping jaw 302 and the second clamping jaw 303 respectively. The inner walls of the opposing ends of the first clamping jaw 302 and the second clamping jaw 303 are provided with a plurality of oil outlet holes at intervals. The first metering valve 306 and the second metering valve 308 are fixed at intervals on the main frame 1. The first oil tank 304, the first metering valve 306 and the first clamping jaw 302 are connected in sequence, and the second oil tank 305, the second metering valve 308 and the second clamping jaw 303 are connected in sequence. The first metering valve 306 and the second metering valve 308 are both communicatively connected to the controller.

[0085] The jaw cylinder 301 drives the first jaw 302 and the second jaw 303 to tighten or loosen the rack 8. The first metering valve 306 and the second metering valve 308 respectively control the amount of grease flowing out of the first oil tank 304 and the second oil tank 305 through the oil outlet holes, thereby lubricating the tooth surfaces and backs of the rack respectively, achieving uniform and automatic lubrication of the tooth surfaces and backs of the rack.

[0086] Specifically, in this embodiment, the initial state of the oiling process is that the first jaw 302 and the second jaw 303 are in an open state, so that the other end of the rack 8 can pass through the groove surrounded by the first jaw 302 and the second jaw 303 and be engaged with the positioning plate 201.

[0087] Specifically, the oil outlet holes provided on the inner walls of the facing ends of the first clamping jaw 302 and the second clamping jaw 303 correspond to each other in position, ensuring that the tooth surfaces and tooth backs of the rack 8 are evenly oiled.

[0088] Among them, Figure 7 As shown, in this embodiment, three oil outlet holes are fixed at intervals on the inner wall of the first clamping jaw 302 .

[0089] On the basis of the above solution, one end of the first clamping jaw 302 has a trapezoidal groove, and the second clamping jaw 303 has a semicircular groove. The trapezoidal groove and the semicircular groove form a third groove 307 for the rack to pass through.

[0090] The third groove 307 fits tightly against the outer wall of the rack, reducing the gap between the rack and the third groove 307 , thereby preventing grease from dripping outside and causing grease waste.

[0091] Specifically, when the serrations on the tooth surface of the rack 8 move to the third groove 307 , the controller may drive the oiling assembly 3 to oil the rack 8 .

[0092] The trapezoidal groove corresponds to the outer contour of the tooth surface of the rack 8 , and the semicircular groove corresponds to the outer contour of the tooth back of the rack 8 .

[0093] Among them, Figure 1 As shown, the tooth surface of the rack 8 has serrations, and the tooth back is a smooth surface.

[0094] In this embodiment, when in use, first, the device is reset to the initial state, and the clamping jaw cylinder 301 is driven to open the first clamping jaw 302 and the second clamping jaw 303;

[0095] Then, the locking bolt 411 is turned counterclockwise to lock the locking block 410 and the slide rail 401, so that the movable plate 402 slides along the slide rail 401 through the locking block 410, and then the movable plate 402 is moved toward the positioning rod 5 by the hand push rod 403 until the other end of the positioning rod 5 is sleeved in the second protrusion 408 of the support plate 406, completing the positioning of the positioning rod 5; and then the locking bolt 411 is turned counterclockwise to lock the locking block 410 and the slide rail 401 to prevent the movable plate 402 from moving;

[0096] Next, one end of the rack 8 is placed on the first protrusion 407 of the support plate 406, and the other end of the rack 8 is passed through the second opening 702, the third groove 307 and the first opening 205 in sequence, and is then placed on the bearing 203. The bearing 203 is then engaged with the second groove 204 of the positioning plate 201.

[0097] Finally, the clamping cylinder of the rack oiling mechanism moving device is driven to clamp the bearing 203, and then the other end of the rack 8 is clamped; the moving component of the rack oiling mechanism moving device is driven to drive the rack 8 to move horizontally to the left, and when the serrations on the tooth surface of the rack 8 are flush with the third groove 307, the rack 8 stops moving; at this time, the clamping cylinder 301 drives the first clamping jaw 302 and the second clamping jaw 303 to clamp the rack 8, and after the clamping is completed, the rack 8 continues to move horizontally to the left; then, the first metering valve 306 and the second metering valve 308 respectively control the oil output of the first oil tank 304 and the second oil tank 305, and oil the tooth surface and tooth back of the moving rack 8 through the oil outlet holes of the first clamping jaw 302 and the second clamping jaw 303, so as to realize automatic and uniform oiling of the rack 8 and improve product quality.

[0098] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0100] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0101] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0103] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic oiling device for a steering system rack, characterized in that: The invention comprises a main frame (1), a rack positioning assembly (2), an oiling assembly (3), a rack limiting assembly (4), a positioning rod (5), a positioning rod limiting assembly (6) and a controller. The main frame (1) is fixed with the rack positioning assembly (2), the oiling assembly (3) and the positioning rod limiting assembly (6) in sequence and at intervals along the horizontal direction. The rack limiting assembly (4) is detachably connected to the main frame (1). One end of the positioning rod (5) is detachably connected to the positioning rod limiting assembly (6). The other end of the positioning rod (5) is detachably connected to the rack limiting assembly (4). The oiling assembly (3) and the rack limiting assembly (4) are both communicatively connected to the controller.

2. The automatic oiling device for a steering system rack according to claim 1, characterized in that: It also includes a grease box (7), which is located between the oiling assembly (3) and the rack limiting assembly (4) and is fixedly connected to the main frame (1).

3. The automatic oiling device for a steering system rack according to claim 2, characterized in that: The grease box (7) has a first groove (701) at one end facing the oiling assembly (3), and a second opening (702) at a side of the grease box (7) away from the main frame (1).

4. The automatic oiling device for a steering system rack according to claim 1, characterized in that: The positioning rod limiting assembly (6) includes a fixed block (601) and a third position sensor (603), one end of the fixed block (601) is fixedly connected to the main frame (1), and the other end of the fixed block (601) is detachably connected to one end of the positioning rod (5), and a plurality of the third position sensors (603) are distributed at intervals along the circumference of the other end of the fixed block (601), and the plurality of third position sensors (603) are all communicatively connected to the controller.

5. The automatic oiling device for a steering system rack according to claim 2, characterized in that: The rack limiting assembly (4) includes a slide rail (401), a movable plate (402), a hand push rod (403), a rack limiting cylinder (404), a second position sensor (405), a support plate (406), a first protrusion (407), a second protrusion (408), a fixed frame (409), a locking block (410) and a locking bolt (411). The main frame (1) has a first through hole in the middle, the slide rails (401) are fixed on both sides of the first through hole, the locking block (410) is fixed on one end of one side of the movable plate (402), the locking block (410) is slidably connected to the slide rail (401), the locking block (410) has a second through hole, the locking bolt (411) passes through the locking block (410) and the slide rail (401), and is threadedly connected to the slide rail (401). The movable plate The other end of one side of (402) is slidably connected to the slide rail (401), the rack limiting cylinder (404) is fixed in the middle of one side of the movable plate (402), the hand push rod (403) and the support plate (406) are fixed at intervals on the other side of the movable plate (402), the first protrusion (407) is fixed on one end of the support plate (406) facing the rack limiting cylinder (404), the second protrusion (408) and the fixing frame (409) are fixed at intervals along the vertical direction on the other end of the support plate (406), the second position sensor (405) is fixed on the fixing frame (409), the other end of the positioning rod (5) is detachably connected to the second protrusion (408), and the rack limiting cylinder (404) and the second position sensor (405) are both communicatively connected to the controller.

6. The automatic oiling device for the steering system rack according to claim 5, characterized in that: It also includes a support block (412), and the driving end of the rack limiting cylinder (404) is fixed with the support block (412).

7. The automatic oiling device for a steering system rack according to claim 5, characterized in that: It also includes a connecting plate (413), wherein the middle portion of one side of the movable plate (402) is fixedly connected to one end of the connecting plate (413), and the other end of the connecting plate (413) is fixedly connected to the rack limiting cylinder (404).

8. The automatic oiling device for a steering system rack according to claim 1, characterized in that: The rack positioning assembly (2) includes a positioning plate (201) and a first position sensor (202), one side of the positioning plate (201) is fixedly connected to the main frame (1), the other side of the positioning plate (201) has a first opening (205), the end of the first opening (205) away from the oiling assembly (3) has a second groove (204), the first position sensor (202) is fixed to the other end of the positioning plate (201), and the first position sensor (202) is communicatively connected to the controller.

9. The automatic oiling device for a steering system rack according to claim 8, characterized in that: The oiling assembly (3) comprises a clamping jaw cylinder (301), a first clamping jaw (302), a second clamping jaw (303), a first oil tank (304), a second oil tank (305), a first metering valve (306) and a second metering valve (308); the clamping jaw cylinder (301) is fixed on the main frame (1); the first oil tank (304) and the second oil tank (305) are fixed on the clamping jaw cylinder (301) at intervals; the clamping jaw cylinder (301) is in transmission connection with the first clamping jaw (302) and the second clamping jaw (303) and enables the first clamping jaw (302) and the second clamping jaw (303) to move toward or away from each other; the first oil tank (304) and the second oil tank ( The first clamping jaw (302) and the second clamping jaw (303) are fixedly connected to each other at one end thereof, and the inner walls of the first clamping jaw (302) and the second clamping jaw (303) at one end thereof are provided with a plurality of oil outlet holes at intervals. The first metering valve (306) and the second metering valve (308) are fixed to each other at intervals on the main frame (1). The first oil tank (304), the first metering valve (306) and the first clamping jaw (302) are connected in sequence. The second oil tank (305), the second metering valve (308) and the second clamping jaw (303) are connected in sequence. The first metering valve (306) and the second metering valve (308) are both connected to the controller for communication.

10. The automatic oiling device for the rack of a steering system according to claim 9, characterized in that: One end of the first clamping jaw (302) has a trapezoidal groove, and the second clamping jaw (303) has a semicircular groove. The trapezoidal groove and the semicircular groove form a third groove (307) for the rack to pass through.

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