Cam bearing follower sliding device

Abstract

The invention discloses a cam bearing follower sliding device which comprises a guide rail, a reciprocating sliding piece installed in the middle of the guide rail in a sliding mode, a follower body arranged in the middle of the reciprocating sliding piece and a guide rail bearing seat fixedly arranged in the middle of the lower end of the guide rail. The two guide rail baffles are symmetrically fixed to the two ends of the guide rail, the two ends of the guide rail bearing base are each provided with two negative pressure adsorption supporting mechanisms, and the forward and reverse rotation sweeping mechanism is used for synchronously moving in a reciprocating mode along with the reciprocating sliding part and sweeping dust and impurities on the two side faces of the guide rail. By arranging forward and reverse rotation sweeping mechanisms symmetrically installed at the two ends of a reciprocating sliding piece, dynamic sweeping can be conducted on the two side faces of the guide rail by means of the mode that a banister brush containing cylinder rotates forwards and reversely along with a forward and reverse rotation shaft, and the dust removal effect is improved through elastic contact between a dust removal banister brush and the surface of the rail and axial telescopic matching between a flat key groove and a limiting flat key. And the dedusting banister brush is always attached to the track profile.

Description

Technical Field

[0001] The present invention relates to the technical field of cam bearing followers, in particular to a cam bearing follower sliding device. Background Art

[0002] A cam follower is a mechanical transmission element that integrates bearing and cam follower functions. It typically consists of an outer ring, rolling elements, a cage, and a cam contact structure. Its core feature is that the sliding friction of traditional cam followers is converted into rolling friction through an internal rolling bearing, thereby significantly reducing motion resistance and improving transmission accuracy. This component transmits motion through rolling contact between the outer ring and the cam surface, combining load support and guidance functions. It is widely used in automation equipment, machine tools, and packaging machinery in scenarios requiring high-frequency reciprocating motion or complex trajectory following. Its structural design must take into account contact stiffness, wear resistance, and rotational flexibility to meet the dynamic response requirements under different operating conditions. In transmission systems that achieve low-friction sliding fit, cam followers are often used in combination with dedicated guide rails or grooves. This has led to a cam follower sliding device based on a composite mechanism of rolling contact and sliding guidance. This device can further improve motion smoothness and system life by optimizing the matching relationship between the contact interface.

[0003] The existing cam bearing follower sliding devices generally have dust-proof performance defects, and their structural designs are generally not equipped with dust removal mechanisms, which leads to the formation of a dust adhesion layer on the surface of the guide rail assembly after long-term operation of the equipment. Especially in the areas where the two sides of the track and the sliding parts cooperate, particulate pollutants in the environment will gradually accumulate due to equipment vibration and lubricant adsorption, forming an adhesive oil impurity layer. This pollutant accumulation phenomenon is particularly significant on the vertical guide surface and the lateral limit structure. As the service cycle extends, abnormal dust accumulation will change the original fitting clearance of the guide rail pair, causing technical problems such as nonlinear increase in sliding resistance and motion jamming. In severe cases, it will directly cause positioning deviation of the cam drive mechanism or failure of the actuator. For this purpose, a cam bearing follower sliding device is provided. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a cam bearing follower sliding device.

[0005] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are: 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt

[0006] Preferably, the forward and reverse rotating shaft and the fixed side seat are rotatably arranged through bearings, and a soft brush collection cylinder is provided on the outer wall of the forward and reverse rotating shaft and at one end facing the guide track, and a dust removal soft brush is provided on the outer wall of the soft brush collection cylinder and at one end facing the guide track, and a rack gear is fixedly installed on the outer wall of the forward and reverse rotating shaft and at an internal position of the fixed side seat.

[0007] Preferably, a side seat adapter plate is provided on the outer wall of the fixed side seat and in the middle of one side facing the reciprocating sliding member, the fixed side seat and the reciprocating sliding member are connected through the side seat adapter plate, the soft brush collecting barrel is slidingly sleeved on the outer wall of the forward and reverse rotating shaft, and the soft brush collecting barrel and the forward and reverse rotating shaft are elastically arranged through the collecting barrel spring, the outer wall of the forward and reverse rotating shaft and close to the two sides of the soft brush collecting barrel are symmetrically provided with two limit flat keys, and the inner wall of the soft brush collecting barrel and each limit flat key position are provided with a flat key groove.

[0008] Preferably, the forward and reverse rotating cleaning mechanism also includes a reciprocating rack arranged inside the fixed side seat and close to the rack gear position, and a drive shaft mounting seat installed on the upper end of the fixed side seat, a positioning shaft fixing plate is fixedly provided in the middle of the upper end of the reciprocating rack, and two rotating wheel positioning shafts are symmetrically fixed on both sides of the upper end of the positioning shaft fixing plate, a rotating wheel driving shaft is rotatably provided inside the driving shaft mounting seat through a bearing, and an inclined rotating wheel is fixedly provided on the outer wall of the rotating wheel driving shaft and located between the two rotating wheel positioning shafts, and the outer end of the rotating wheel driving shaft is connected and assembled with the output end of the driving shaft motor through a coupling.

[0009] Preferably, each of the rack gears is meshed with the reciprocating rack, the two rotating wheel positioning shafts are slidingly arranged with the inclined rotating wheel, a rack guide sleeve is fixedly provided on the upper end of the reciprocating rack, and a rack guide rod is slidingly provided on the inner wall of the rack guide sleeve, and the rack guide rod is connected to the fixed side seat, and the rack guide sleeve and the fixed side seat are elastically arranged by the guide sleeve spring.

[0010] Preferably, the negative pressure adsorption support mechanism includes an air cylinder body, and the air cylinder body is connected to the guide rail support seat, and the upper and lower openings of the air cylinder body are connected, a piston push-pull rod is provided inside the air cylinder body, and the outer surface of the piston push-pull rod is clearance-matched with the inner surface of the air cylinder body, and a movable rubber plug is fixedly provided in the middle of the lower end of the piston push-pull rod, and the movable rubber plug is slidingly provided with the air cylinder body.

[0011] Preferably, a lifting bevel gear plate is fixedly provided on the outer wall of the piston push-pull rod, a threaded rod rotating shaft is rotatably provided on the top of the gas storage cylinder body and close to the position of the piston push-pull rod through a bearing, and a braking threaded rod is fixedly provided on the outer wall of the threaded rod rotating shaft, and the braking threaded rod is meshed with the lifting bevel gear plate for transmission, a rotating shaft assist handle is fixedly provided in the middle of the upper end of the threaded rod rotating shaft, and an O-ring is fixedly provided on the inner wall of the lower end of the gas storage cylinder body.

[0012] The beneficial effects of the present invention are: By setting up a forward and reverse rotating cleaning mechanism symmetrically installed at both ends of the reciprocating sliding part, and utilizing the soft brush assembly barrel to rotate forward and backward along with the forward and reverse rotating shaft, the two sides of the guide rail can be dynamically cleaned. The elastic contact between the dust removal soft brush and the rail surface and the axial telescopic fit between the flat keyway and the limit flat key ensure that the dust removal soft brush always fits the rail contour, solving the problem of the existing sliding device causing the guide rail pair clearance to change and the nonlinear increase of sliding resistance due to the accumulation of pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the forward and reverse rotation cleaning mechanism structure of the present invention Figure 1 ; Figure 3 This is a schematic diagram of the forward and reverse rotation cleaning mechanism structure of the present invention Figure 2 ; Figure 4 It is a schematic structural diagram of the negative pressure adsorption support mechanism of the present invention.

[0014] Description of reference numerals: 100, guide rail; 200, follower body; 300, guide rail support seat; 400, guide rail baffle; 500, reciprocating slide; 600, negative pressure adsorption support mechanism; 601, air storage cylinder; 602, movable rubber plug; 603, O-ring; 604, lifting bevel gear plate; 605, brake threaded rod; 606, threaded rod rotating shaft; 607, rotating shaft assist handle; 608, piston push-pull rod; 700, forward and reverse rotation cleaning mechanism; 701, fixed side seat; 702, side seat adapter plate ; 703, rotating wheel positioning shaft; 704, dust removal soft brush; 705, guide sleeve spring; 706, rack guide sleeve; 707, rack guide rod; 708, rotating wheel drive shaft; 709, tilting rotating wheel; 710, positioning shaft fixing plate; 711, drive shaft mounting seat; 712, drive shaft motor; 713, reciprocating rack; 714, rack gear; 715, forward and reverse rotation shaft; 716, soft brush assembly barrel; 717, assembly barrel spring; 718, flat keyway; 719, limit flat key. DETAILED DESCRIPTION

[0015] The following will be combined with the Figure 1 To the attached Figure 4 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0016] The present invention provides a technical solution: a cam bearing follower sliding device, comprising a guide rail 100, a reciprocating sliding member 500 slidably mounted in the middle of the guide rail 100, a follower body 200 arranged in the middle of the reciprocating sliding member 500, a guide rail support seat 300 fixedly arranged in the middle of the lower end of the guide rail 100, and two guide rail baffles 400 symmetrically fixed at both ends of the guide rail 100, used to intercept the reciprocating sliding member 500 to prevent the reciprocating sliding member 500 from falling off. 0 are provided with dust scrapers on both sides of the top to block dust and impurities on the upper end of the guide rail 100. The follower body 200 is a cam bearing follower. Both ends of the guide rail support seat 300 are provided with two negative pressure adsorption support mechanisms 600 for stabilizing the guide rail support seat 300. The device also includes: two forward and reverse rotating cleaning mechanisms 700 symmetrically arranged at both ends of the reciprocating slide 500, which are used to move back and forth synchronously with the reciprocating slide 500 and clean dust and impurities on both sides of the guide rail 100.

[0017] Specifically, the forward and reverse rotating cleaning mechanism 700 includes a fixed side seat 701, and a side seat adapter plate 702 is provided on the outer wall of the fixed side seat 701 and in the middle of one side facing the reciprocating sliding member 500. The fixed side seat 701 is connected to the reciprocating sliding member 500 through the side seat adapter plate 702. Two forward and reverse rotating shafts 715 are provided at both ends of the interior of the fixed side seat 701. The forward and reverse rotating shafts 715 and the fixed side seat 701 are rotatably arranged through bearings. A soft brush collection barrel 716 is provided on the outer wall of the forward and reverse rotating shaft 715 and at one end facing the guide rail 100. A dust removal soft brush 704 is provided on the outer wall of the soft brush collection barrel 716 and at one end facing the guide rail 100. The soft brush collection barrel 716 is slidably sleeved on the forward and reverse rotating shafts 715. The outer wall of the dynamic shaft 715, the soft brush collection cylinder 716 and the forward and reverse rotating shaft 715 are elastically arranged by the collection cylinder spring 717, and the outer wall of the forward and reverse rotating shaft 715 and two symmetrical limiting flat keys 719 are arranged on both sides close to the soft brush collection cylinder 716. The inner wall of the soft brush collection cylinder 716 and each limiting flat key 719 position are provided with a flat key groove 718 for cooperating with the limiting flat key 719, so that the soft brush collection cylinder 716 can axially extend and retract along the forward and reverse rotating shaft 715 and rotate synchronously with the forward and reverse rotating shaft 715. The outer wall of the forward and reverse rotating shaft 715 and the rack gear 714 are fixedly installed at the internal position of the fixed side seat 701. The forward and reverse rotating cleaning mechanism 700 also includes a fixed side The reciprocating rack 713 inside the seat 701 and close to the rack gear 714 is used to synchronously drive each rack gear 714, and the drive shaft mounting seat 711 installed on the upper end of the fixed side seat 701, each rack gear 714 is meshed with the reciprocating rack 713, and a positioning shaft fixing plate 710 is fixedly provided in the middle of the upper end of the reciprocating rack 713. Two rotating wheel positioning shafts 703 are symmetrically fixed on both sides of the upper end of the positioning shaft fixing plate 710. A rotating wheel driving shaft 708 is rotatably provided inside the driving shaft mounting seat 711 through a bearing. The outer end of the rotating wheel driving shaft 708 is connected to the output end of the driving shaft motor 712 through a coupling. The outer wall of the rotating wheel driving shaft 708 is located at two An inclined rotating wheel 709 is fixedly provided between the rotating wheel positioning shafts 703, which is used to cooperate with the two rotating wheel positioning shafts 703 and the positioning shaft fixing plate 710 to drive the reciprocating rack 713 to move back and forth, and use the rack gear 714 to drive the forward and reverse rotating shaft 715 to rotate forward and reverse. The two rotating wheel positioning shafts 703 are both slidably set with the inclined rotating wheel 709, and clamp and position the inclined rotating wheel 709. A rack guide sleeve 706 is fixedly provided on the upper end of the reciprocating rack 713, and a rack guide rod 707 is slidably provided on the inner wall of the rack guide sleeve 706. The rack guide rod 707 is connected to the fixed side seat 701, and the rack guide sleeve 706 and the fixed side seat 701 are elastically set by the guide sleeve spring 705.

[0018] Specifically, the negative pressure adsorption support mechanism 600 includes a gas storage cylinder 601 for storing gas. The gas storage cylinder 601 is connected to the guide rail support seat 300. The upper and lower ends of the gas storage cylinder 601 are connected. A piston push-pull rod 608 is provided inside the gas storage cylinder 601. The outer surface of the piston push-pull rod 608 is provided with a clearance fit with the inner surface of the gas storage cylinder 601. A movable rubber plug 602 is fixedly provided in the middle of the lower end of the piston push-pull rod 608 for extracting and discharging gas. The movable rubber plug 602 is slidably provided with the gas storage cylinder 601. The outer wall of the piston push-pull rod 608 is fixedly provided with a lifting bevel gear plate 604 for driving the movable The piston push-pull rod 608 rises and falls synchronously. A threaded rod rotating shaft 606 is provided at the top of the gas storage cylinder body 601 and near the position of the piston push-pull rod 608 through a bearing. A braking threaded rod 605 is fixedly provided on the outer wall of the threaded rod rotating shaft 606. The braking threaded rod 605 is engaged with the lifting bevel gear plate 604 for transmission. A rotating shaft assist handle 607 is fixedly provided in the middle of the upper end of the threaded rod rotating shaft 606 to facilitate the staff to rotate the threaded rod rotating shaft 606 and the braking threaded rod 605. An O-ring 603 is fixedly provided on the inner wall of the lower end of the gas storage cylinder body 601 for sealing the joint. The lower end face of the O-ring 603 is slightly lower than the lower end face of the gas storage cylinder body 601.

[0019] According to the above, the present invention sets a forward and reverse rotating cleaning mechanism 700 symmetrically installed at both ends of the reciprocating sliding member 500. When in use, the soft brush collection barrel 716 is used to rotate forward and backward along with the forward and reverse rotating shaft 715 to dynamically clean the two sides of the guide rail 100. The elastic contact between the dust-removing soft brush 704 and the rail surface and the axial telescopic cooperation between the flat key groove 718 and the limiting flat key 719 ensure that the dust-removing soft brush 704 always fits the rail contour, solving the problem of the existing sliding device causing the guide rail pair matching clearance to change and the nonlinear increase of the sliding resistance due to the accumulation of pollutants; the present invention sets a negative pressure adsorption support mechanism 600 at both ends of the guide rail support seat 300. When in use, it utilizes the negative pressure adsorption effect of the piston push-pull rod 608 and the movable rubber plug 602 in the air storage cylinder body 601, and is tightly fitted with the mounting surface through the O-ring 603, so that the staff can quickly disassemble and fix the guide rail support seat 300 and the guide rail 100.

[0020] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A cam bearing follower sliding device, comprising a guide rail (100), a reciprocating sliding member (500) slidably mounted in the middle of the guide rail (100), a follower body (200) disposed in the middle of the reciprocating sliding member (500), a guide rail support seat (300) fixedly disposed in the middle of the lower end of the guide rail (100), and two guide rail baffles (400) symmetrically fixed to both ends of the guide rail (100), characterized in that: The guide rail support seat (300) is provided with two negative pressure adsorption support mechanisms (600) at both ends thereof for stabilizing the guide rail support seat (300), and further comprises: two forward and reverse rotation cleaning mechanisms (700) symmetrically arranged at both ends of the reciprocating sliding member (500), for following the reciprocating sliding member (500) to move back and forth synchronously and clean dust and impurities on both sides of the guide rail (100), the forward and reverse rotation cleaning mechanism (700) comprises a fixed side seat (701), and two forward and reverse rotation shafts (715) are provided at both ends inside the fixed side seat (701).

2. The cam bearing follower sliding device according to claim 1, characterized in that: The forward and reverse rotating shaft (715) and the fixed side seat (701) are rotatably arranged via bearings, and a soft brush collection cylinder (716) is provided on the outer wall of the forward and reverse rotating shaft (715) and at one end facing the guide track (100), and a dust removal soft brush (704) is provided on the outer wall of the soft brush collection cylinder (716) and at one end facing the guide track (100), and a rack gear (714) is fixedly installed on the outer wall of the forward and reverse rotating shaft (715) and at an inner position of the fixed side seat (701).

3. The cam bearing follower sliding device according to claim 2, characterized in that: A side seat adapter plate (702) is provided on the outer wall of the fixed side seat (701) and in the middle of one side facing the reciprocating sliding member (500). The fixed side seat (701) is connected to the reciprocating sliding member (500) via the side seat adapter plate (702). The soft brush assembly cylinder (716) is slidably sleeved on the outer wall of the forward and reverse rotating shaft (715), and the soft brush assembly cylinder (716) and the forward and reverse rotating shaft (715) are elastically arranged via an assembly cylinder spring (717). Two limiting flat keys (719) are symmetrically provided on the outer wall of the forward and reverse rotating shaft (715) and close to both sides of the soft brush assembly cylinder (716). A flat key groove (718) is provided on the inner wall of the soft brush assembly cylinder (716) and at the position of each limiting flat key (719).

4. The cam bearing follower sliding device according to claim 2, characterized in that: The forward and reverse rotating cleaning mechanism (700) further comprises a reciprocating rack (713) arranged inside the fixed side seat (701) and close to the rack gear (714), and a drive shaft mounting seat (711) mounted on the upper end of the fixed side seat (701), a positioning shaft fixing plate (710) is fixedly arranged in the middle of the upper end of the reciprocating rack (713), and two rotating wheel positioning shafts (703) are symmetrically fixed on both sides of the upper end of the positioning shaft fixing plate (710), a rotating wheel driving shaft (708) is rotatably arranged inside the drive shaft mounting seat (711) through a bearing, and an inclined rotating wheel (709) is fixedly arranged on the outer wall of the rotating wheel driving shaft (708) and located between the two rotating wheel positioning shafts (703), and the outer end of the rotating wheel driving shaft (708) is connected and assembled with the output end of the driving shaft motor (712) through a coupling.

5. The cam bearing follower sliding device according to claim 4, characterized in that: Each of the rack gears (714) is meshed with the reciprocating rack (713), and the two rotating wheel positioning shafts (703) are slidably arranged with the inclined rotating wheel (709). A rack guide sleeve (706) is fixedly arranged on the upper end of the reciprocating rack (713), and a rack guide rod (707) is slidably arranged on the inner wall of the rack guide sleeve (706), and the rack guide rod (707) is connected to the fixed side seat (701). The rack guide sleeve (706) and the fixed side seat (701) are elastically arranged through a guide sleeve spring (705).

6. The cam bearing follower sliding device according to claim 1, characterized in that: The negative pressure adsorption support mechanism (600) includes an air cylinder body (601), and the air cylinder body (601) is connected to the guide rail support seat (300), and the upper and lower ends of the air cylinder body (601) are connected. A piston push-pull rod (608) is provided inside the air cylinder body (601), and the outer surface of the piston push-pull rod (608) and the inner surface of the air cylinder body (601) are provided with a clearance fit, and a movable rubber plug (602) is fixedly provided in the middle of the lower end of the piston push-pull rod (608), and the movable rubber plug (602) is slidably provided with the air cylinder body (601).

7. The cam bearing follower sliding device according to claim 6, characterized in that: A lifting bevel gear plate (604) is fixedly provided on the outer wall of the piston push-pull rod (608); a threaded rod rotating shaft (606) is rotatably provided at the top of the gas storage cylinder body (601) and near the piston push-pull rod (608) via a bearing; a braking threaded rod (605) is fixedly provided on the outer wall of the threaded rod rotating shaft (606); and the braking threaded rod (605) is meshed with the lifting bevel gear plate (604) for transmission; a rotating shaft assist handle (607) is fixedly provided in the middle of the upper end of the threaded rod rotating shaft (606); and an O-type sealing ring (603) is fixedly provided on the inner wall of the lower end of the gas storage cylinder body (601).

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