Gear-assisted linear module and straightness detection device

Abstract

The present invention belongs to the technical field of gear linear modules, especially gear auxiliary linear modules and straightness detection devices. In view of the problem in the prior art that the transmission accuracy of the gear rack linear module often deteriorates due to untimely lubrication, the following scheme is proposed, including a rail groove system, the rail groove system includes a groove rail body with an upward opening and a "mountain" shaped cross-section, the left and right ends of the groove rail body are respectively fixed with end plates one and two, and a sliding carrier is slidably connected in the rail groove body, and a servo motor is provided on the upper surface of the end of the sliding carrier close to end plate one, and a hinge seat is fixed to the rear end of the rail groove body close to end plate two, and a horizontal forward and backward extending rotary shaft is inserted near the top of the rear side of the hinge seat. The present invention can realize that the piston oil barrel continuously recycles the oil inside the rail groove body, so that the lubricating oil can be timely pumped and sprayed to the position where lubrication is most needed, achieving the effect of lubrication and startup synchronization.

Description

Technical Field

[0001] The present invention relates to the technical field of gear linear modules, and in particular to a gear auxiliary linear module and a straightness detection device. Background Art

[0002] A rack-and-pinion linear actuator is a common linear drive device used to convert rotational motion into linear motion. It typically consists of a rack and pinion. Simply put, the operating principle of a rack-and-pinion linear actuator is to achieve linear motion through the meshing of the two gears. When the gear rotates, it meshes with the teeth on the rack, pushing the rack in a straight line. If the rack remains stationary, the gear drives the motor along the direction of the rack, completing the linear motion of the mechanism.

[0003] As we all know, the basic principle of this movement is to maintain meshing at all times. However, when the load is running, the wear on the gear rack will be quite serious. If the gear module is not designed properly or lubrication is not timely, the overall operating life and accuracy will be greatly reduced. At the very least, it will cause noise to increase, and at worst, it will cause the gear to not run in a straight line. The lubrication method in the existing technology is to improve the lubrication effect by increasing the lubrication frequency, but this method requires stopping the machine for lubrication, which increases labor intensity. Therefore, we propose a new gear-assisted linear module and straightness detection device. Summary of the Invention

[0004] In order to solve the technical problem in the prior art that the transmission accuracy of the rack and pinion linear module often deteriorates due to untimely lubrication, the present invention adopts the following technical solutions:

[0005] The gear-assisted linear module includes a rail groove system, which includes a groove rail body with an upward opening and a "mountain"-shaped cross-section. The left and right ends of the groove rail body are respectively fixed with end plates 1 and 2, and a sliding carrier is slidably connected to the rail groove body. A servo motor is provided on the upper surface of the end of the sliding carrier close to the end plate 1. A hinge seat is fixed to the end of the rear side of the rail groove body close to the end plate 2, and a rotary shaft extending horizontally forward and backward is inserted near the top of the rear side of the hinge seat. An arc-shaped rocking arm is fixed to the rear end of the rotary shaft, and a swing pulley 2 is provided near the front at the top end of the arc-shaped rocking arm, and a groove-shaped cantilever rod extending backward is provided on the rear side of the servo motor, and a pulley 1 is provided at the other end of the groove-shaped cantilever rod. A fixed pulley three is provided on the upper surface of the body between pulley one and the hinge seat, and pulley one, swing pulley two and fixed pulley three are in the same plane and the circumferential outer walls of the three are provided with anti-slip grooves, and a cable for controlling the servo motor is wound in a zigzag shape between pulley one, swing pulley two and fixed pulley three; an oiling mechanism is provided on the rear side of the rail groove body, and the oiling mechanism includes a piston oil barrel with an overall hollow cylindrical structure, and the two ends of the piston oil barrel are respectively connected with an oil outlet pipe and an oil return pipe communicating with the interior of the rail groove body, and a piston plate is slidably connected to the interior of the piston oil barrel, and a reciprocating push rod is fixed to the side of the piston plate close to the arc-shaped rocker arm, and a connecting rod is hinged between the end of the reciprocating push rod and the side of the arc-shaped rocker arm.

[0006] A further arrangement is that a front rib plate 1 and a rear rib plate 2 are respectively fixed to the bottom of the groove of the groove rail body near the bottom corners on the front and rear sides, and a ridge running through both ends is reserved near the middle and rear side of the groove bottom of the rail groove body, and an auxiliary positioning ridge is reserved at the top of the ridge, and a rack with a tooth surface facing the middle is fixed to the top of the ridge, and a driving gear is fixed to the top of the output shaft of the servo motor through the sliding carrier plate; an extension platform is reserved on the side of the sliding carrier plate near the end plate 1, and a motor balancing fixing frame for fixing the servo motor is fixed on the upper surface of the extension platform, and a bearing hole 2 is opened in the middle of the extension platform, and the motor shaft of the servo motor can smoothly pass through the bearing hole 2; through such an arrangement, when the servo motor is started, the sliding carrier plate as a whole can be carried to slide left and right in the rail groove body and above the front rib plate 1 and the rear rib plate 2.

[0007] A further configuration is that the top ends of the front rib plate 1 and the rear rib plate 2 are respectively reserved with inclined surfaces in opposite directions, and the lower surface of the sliding carrier is provided with a pressing mechanism near the four corners. The cross-section of the sliding carrier is a "J"-shaped structure, and the front and rear sides of the sliding carrier are respectively reserved with mutually symmetrical inclined baffles parallel to the inclined surfaces. The two ends of the two inclined baffles are respectively provided with mutually symmetrical bearing holes 1, and the bearing holes 1 are embedded with sliding bearings. The sliding bearings are slidably connected with a U-shaped sliding column whose axis is perpendicular to the inclined surface on the side, and the bottom ends of the U-shaped sliding columns are provided with rollers. The rollers Rolling on the inclined surface; a bow-shaped push rod spanning each bearing hole is fixed on the upper surface of the inclined baffle of the sliding carrier, and a tightening spring is fixed between the lower surface of the bow-shaped push rod and the top of the U-shaped sliding column; square holes are opened on the front and rear edge horizontal bars of the sliding carrier near the corresponding pressing mechanism, and ball seats are embedded in the square holes, and ball grooves are opened on the upper surfaces of the ball seats, and balls are embedded in the ball grooves. The top edges of the front and rear sides of the groove rail body are reserved with inward-rolled wings, and the lower surfaces of the wings are opened with ball grooves running through the left and right ends, and the balls are rolled and clamped in the corresponding ball grooves.

[0008] A further arrangement is that a spring groove is provided on the side of the articulated seat away from the arc-shaped rocker arm, and a return coil spring is fixed to the circumferential inner wall of the spring groove, and the other end of the return coil spring is fixed to the rotary shaft, a C-shaped gear rod is fixed in the middle of the arc-shaped rocker arm, and the center of the circle of the C-shaped gear rod falls on the axis line of the rotary shaft, a movable shaft is fixed on the side of the C-shaped gear rod away from the articulated seat, and one end of the connecting rod close to the arc-shaped rocker arm is sleeved on the movable shaft; the barrel mouth of the piston oil barrel faces the articulated seat, and a barrel cover is fixed at the barrel mouth of the piston oil barrel, and the middle of the barrel cover is fixed. A sealing slip ring is embedded in the slot, and the reciprocating push rod is slidably inserted in the sealing slip ring; a one-way valve is embedded near the bottom end of the piston plate, and a fixing seat for installing the piston oil barrel is also fixed on the rear side of the groove rail body; a drooping roller hanger is fixed at the end of the groove-shaped cantilever rod away from the servo motor, and pulley one is rotatably connected to the bottom end of the roller hanger, and the height of pulley one is consistent with the height of fixed pulley three. Through such an arrangement, the circular swing of the arc-shaped rocker arm can be converted into a linear reciprocating motion of the piston plate, and then the action of pumping and spraying oil can be generated.

[0009] A further arrangement is that a tee is connected to the bottom of the rail groove body near the rear side, and the bottom end of the tee extends downward to the lower surface of the rail groove body and is connected to the oil outlet pipe, and the other two outlets of the tee are connected with oiling rods, and the oiling rods pass through the front rib plate 1 and the rear rib plate 2 on both sides toward the corresponding inclined surfaces, and a spray hole is opened on the side of one of the oiling rods close to the driving gear. By arranging the oiling rod facing the inclined surface, lubricating oil can be sprayed onto the inclined surface and the driving gear during work, and the oil can be evenly applied as the sliding carrier plate moves left and right, thereby improving the timeliness of lubrication.

[0010] A further arrangement is that the root of the convex ridge is provided with an oil return hole one distributed at an equal distance, and the bottom end of the rear rib plate two is provided with an oil return hole two corresponding to the oil return hole one, the bottom end of the front rib plate one is provided with multiple notches, and the root of the convex ridge is provided with a trumpet leakage hole flared toward the front rib plate one near the middle, and the rear side of the groove rail body is provided with an oil return socket communicating with the trumpet leakage hole near the bottom; and the oil return pipe passes through the oil return socket and is plugged into the bottom end hole of the trumpet leakage hole; through such an arrangement, the oil scattered in the groove rail body can be quickly collected to form a circulation, thereby improving the utilization efficiency.

[0011] A further arrangement is that a plurality of anti-slip grooves are opened on the edge of one side of the upper surface of the rack away from the tooth surface, and a positioning pressure block corresponding to the anti-slip groove is reserved on the upper surface of the auxiliary positioning protrusion. Positioning bolts are fixed in the middle of the positioning pressure block and the middle of the corresponding anti-slip groove to tightly clamp the rack and the groove rail body together to prevent axial or longitudinal shaking.

[0012] A further arrangement is that the connection position between the oil outlet pipe and the end of the piston oil barrel is located at the bottom of the end of the piston oil barrel, and a spherical filter is provided at the end of the oil outlet pipe close to the piston oil barrel, so that oil can still be sprayed out when the oil in the piston oil barrel is not full.

[0013] The straightness detection device of the gear-assisted linear module, wherein two steel wires extending horizontally toward the end plate one are fixed near the top of one side of the end plate two close to the sliding carrier plate, and the two steel wires are of the same height and symmetrically distributed, and two self-locking nuts with mutually parallel axis lines are embedded in the top of the end plate one, and the two self-locking nuts are screwed with adjusting screws, and the two steel wires are respectively fixed to the ends of the corresponding adjusting screws; the steel wires can always be kept in a taut and horizontal state by the two adjusting screws; the lower surface of the sliding carrier is located between the two steel wires and two symmetrical straightness detection blocks are fixed, and the side surfaces of the two straightness detection blocks are both provided with U-shaped notches that are stuck in the outer wall of the steel wire, and the directions of the two U-shaped notches are perpendicular to each other, the notch width of the U-shaped notch is greater than the diameter of the steel wire, and metal contacts are provided on the inner walls on both sides of the opposite sides of the U-shaped notch.

[0014] A further configuration is that the steel wire does not contact the rail groove system and the sliding carrier, and the distance between the steel wire and the metal contact piece is less than one millimeter. The spacing between the metal contact piece and the steel wire is adjustable. Through such a configuration, the measurement accuracy can be adjusted as needed.

[0015] The beneficial effects of the present invention are:

[0016] 1. Through the cable wound around the rear side of the rail groove system, when the servo motor starts to drive the sliding carrier to move back and forth along the rail groove body, the arc-shaped swing arm swings left and right around the rotating axis under the combined action of the cable tension and the rotating axis. Then, the piston oil barrel can continuously circulate the oil inside the rail groove body, so that the lubricating oil can be timely pumped and sprayed to the position where lubrication is most needed, achieving the effect of synchronized lubrication and startup.

[0017] 2. The provided pressing mechanism and ball seat cooperate with the wing edge that rolls inward to press the sliding carrier downward, so that the sliding carrier can improve its balance ability under load when sliding in the rail groove body, and reduce friction resistance and friction loss.

[0018] 3. By setting metal contacts in the four directions of left, right, up and down of the steel wire, during the detection process, once the sliding carrier deviates up and down or left and right as a whole during the sliding process, the metal contacts will be touched, and then the alarm circuit will be connected. At this time, the straightness of the device can be detected, which has the advantages of fast detection response speed and low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0021] Figure 3 A top view of the present invention;

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure along line AA;

[0023] Figure 5 Schematic diagram of the overall structure of the rail groove system of the present invention;

[0024] Figure 6 An exploded view of the rail groove system of the present invention;

[0025] Figure 7 is a side view of the present invention;

[0026] Figure 8 Schematic diagram of the overall structure of the oiling mechanism in the present invention;

[0027] Figure 9 Schematic diagram of the cross-sectional structure of the straightness detection block in the present invention;

[0028] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 11 A bottom view of the sliding carrier plate of the present invention;

[0030] Figure 12 An exploded view of the sliding carrier plate and the pressing mechanism of the present invention;

[0031] Figure 13 Schematic diagram of the overall structure of the sliding carrier in the present invention.

[0032] Figure: 1. Rail groove system; 101. Positioning block; 102. Auxiliary positioning rib; 103. Oil return hole 1; 104. Speaker leak hole; 105. Oil return jack; 2. Front rib 1; 3. Rack; 4. Pressing mechanism; 401. Sliding bearing; 402. U-shaped sliding column; 403. Roller; 404. Bow-shaped push rod; 405. Pushing spring; 5. Sliding carrier; 501. Bearing hole 1; 502. Square hole; 503. Bearing hole 2; 6. End plate 1; 7. Self-locking nut; 8. Steel wire; 9. Rear rib 2; 901. Oil return hole 2; 10. Servo motor; 11. Slotted cantilever rod; 1101. Roller hanger; 12. Pulley 1; 13. Oiling mechanism; 131. Piston oil barrel; 132. Fixed seat; 133. Reciprocating push rod; 134. Connecting rod; 135. Oil outlet pipe; 136. Oil return pipe; 137. Tee pipe; 138. Oiling support rod; 14. Swing pulley 2; 15. Fixed pulley 3; 16. Arc-shaped rocker arm; 17. Articulated seat; 18. End plate 2; 19. Driving gear; 20. Cable; 21. Motor balancing bracket; 22. Reset coil spring; 2201. U-shaped notch; 23. Straightness detection block; 24. Metal contact piece; 25. Ball seat; 26. Ball. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In this implementation, refer to Figures 1-13, the gear-assisted linear module includes a rail groove system 1, which includes a groove rail body with an upward opening and a "mountain"-shaped cross-section. The middle ridge of the mountain is biased to the rear side as a whole. The left and right ends of the groove rail body are respectively fixed with end plates 16 and 2nd end plates 18, and a sliding carrier plate 5 is slidably connected in the slide groove of the rail groove body. A servo motor 10 is provided on the upper surface of the end of the sliding carrier plate 5 close to the end plate 16. A hinge seat 17 is fixed to the end of the rear side of the rail groove body close to the end plate 2 18, and a horizontal forward and backward extending rotary shaft is inserted near the top of the rear side of the hinge seat 17. The rear end of the rotary shaft is fixed with an arc-shaped rocking rod 16, and the top of the arc-shaped rocking rod 16 is provided with a swing pulley 2 14 near the front, and a groove-shaped cantilever rod 11 extending backward is provided on the rear side of the servo motor 10, and a pulley 12 is provided at the other end of the groove-shaped cantilever rod 11. A fixed pulley 3 15 is provided between the pulley 12 and the hinge seat 17. The pulley 12, the swing pulley 2 14 and the fixed pulley 3 15 are in the same plane and the circumferential outer walls of the three are provided with anti-slip grooves. A cable 20 for controlling the servo motor 10 is wound in a zigzag shape between the pulley 12, the swing pulley 2 14 and the fixed pulley 3 15; an oiling mechanism 13 is provided on the rear side of the track groove body, and the oiling mechanism 13 includes a piston oil barrel 131 with an overall hollow cylindrical structure. The two ends of the piston oil barrel 131 are respectively connected with an oil outlet pipe 135 and an oil return pipe 136 communicated with the interior of the track groove body. The interior of the piston oil barrel 131 is slidably connected with a piston plate, and a reciprocating push rod 133 is fixed to the side of the piston plate close to the arc-shaped rocker arm 16, and a connecting rod 134 is hinged between the end of the reciprocating push rod 133 and the side of the arc-shaped rocker arm 16;

[0035] Specifically, by setting the cable 20 wound around the rear side of the track groove system 1, when the servo motor 10 starts to drive the sliding carrier 5 to move back and forth along the track groove body as a whole, the arc-shaped rocker arm 16 swings left and right around the rotating axis under the combined action of the tension of the cable 20 and the rotating axis, and then the piston oil barrel 131 can continuously recycle the oil inside the track groove body, so that the lubricating oil can be drawn and sprayed to the position where lubrication is most needed in time, achieving the effect of synchronized lubrication and startup.

[0036] Refer to,4. Figure 8 and Figure 12The bottom of the groove of the groove rail body is fixed with a front rib plate 2 and a rear rib plate 2 9 respectively near the bottom corners on the front and rear sides, and the bottom of the groove of the rail groove body is reserved with a ridge running through both ends near the middle and rear side, and the top of the ridge is reserved with an auxiliary positioning ridge 102, and the top of the ridge is fixed with a rack 3 with a tooth surface facing the middle, and the top of the output shaft of the servo motor 10 passes through the sliding carrier 5 and is fixed with a driving gear 19; an extension platform is reserved on the side of the sliding carrier 5 near the end plate 1 6, and a motor balancing fixing frame 21 for fixing the servo motor 10 is fixed on the upper surface of the extension platform, and a bearing hole 2 503 is opened in the middle of the extension platform, and the motor shaft of the servo motor 10 can smoothly pass through the bearing hole 2 503; through such an arrangement, when the servo motor 10 is started, the sliding carrier 5 can be carried as a whole to slide left and right in the rail groove body and above the front rib plate 2 and the rear rib plate 2 9.

[0037] Reference Figure 4-Figure 5 、 Figure 11-12 , the tops of the front rib plate 2 and the rear rib plate 2 9 are respectively reserved with inclined surfaces in opposite directions, and the lower surface of the sliding carrier 5 is provided with a pressing mechanism 4 near the four corners. The cross-section of the sliding carrier 5 is a "J"-shaped structure, and the front and rear sides of the sliding carrier 5 are respectively reserved with inclined baffles that are symmetrical to each other and parallel to the inclined surfaces. The two ends of the two inclined baffles are respectively provided with mutually symmetrical bearing holes 501, and sliding bearings 401 are embedded in the bearing holes 501. The sliding bearings 401 are slidably connected with U-shaped sliding columns 402 whose axis is perpendicular to the inclined surface on the side, and the bottom ends of the U-shaped sliding columns 402 are provided with rollers 403, and the rollers 403 roll on the inclined surface; the upper surface of the inclined baffle of the sliding carrier 5 is fixed with a bow-shaped push rod 40 that spans each bearing hole 501. 4, and a tightening spring 405 is fixed between the lower surface of the bow-shaped supporting rod 404 and the top of the U-shaped sliding column 402; the front and rear edge horizontal bars of the sliding carrier 5 are close to the corresponding pressing mechanism 4, and the square holes 502 are embedded with ball seats 25, the upper surfaces of the ball seats 25 are opened with spherical grooves, and the spherical grooves are embedded with balls 26. The front and rear top edges of the groove rail body are reserved with inward-rolled wings, and the lower surfaces of the wings are opened with ball grooves running through the left and right ends, and the balls 26 are rolled and clamped in the corresponding ball grooves; through the setting of the pressing mechanism 4 and the ball seat 25, the inward-rolled wings are used to press the sliding carrier 5 downward, so that the sliding carrier 5 can improve its balance ability under load when sliding in the rail groove body, thereby reducing friction resistance and friction loss.

[0038] Reference Figure 1-Figure 3 、 Figure 8 、 Figure 13, a spring groove is opened on the side of the articulated seat 17 away from the arc-shaped rocker arm 16, and a return coil spring 22 is fixed to the inner wall of the circumference of the spring groove, and the other end of the return coil spring 22 is fixed to the rotary shaft, a C-shaped gear rod is fixed in the middle of the arc-shaped rocker arm 16, and the center of the circle of the C-shaped gear rod falls on the axis line of the rotary shaft, a movable shaft is fixed on the side of the C-shaped gear rod away from the articulated seat 17, and one end of the connecting rod 134 close to the arc-shaped rocker arm 16 is sleeved on the movable shaft; the barrel mouth of the piston oil barrel 131 faces the articulated seat 17, and a barrel cover is fixed at the barrel mouth of the piston oil barrel 131, and a sealing sliding member is embedded in the middle of the barrel cover. Ring, the reciprocating push rod 133 is slidably inserted in the sealing slip ring; and a one-way valve is embedded near the bottom end of the piston plate, and a fixing seat 132 for mounting the piston oil barrel 131 is fixed on the rear side of the groove rail body; a drooping roller hanger 1101 is fixed at one end of the groove cantilever rod 11 away from the servo motor 10, and the pulley 12 is rotatably connected to the bottom end of the roller hanger 1101, and the height of the pulley 12 is consistent with the height of the fixed pulley three 15. Through such an arrangement, the circular swing of the arc-shaped rocker arm 16 can be converted into a linear reciprocating motion of the piston plate, and then the action of pumping and spraying oil can be generated.

[0039] Reference Figure 4 、 Figure 6 、 Figure 8 A tee pipe 137 is connected to the bottom of the rail groove body near the rear side, and the bottom end of the tee pipe 137 extends downward to the lower surface of the rail groove body and is connected to the oil outlet pipe 135. The other two outlets of the tee pipe 137 are connected with oiling support rods 138, and the oiling support rods 138 pass through the front rib 1 2 and the rear rib 2 9 on both sides toward the corresponding inclined surfaces. One of the oiling support rods 138 is provided with a spray hole on the side near the driving gear 19. By setting the oiling support rod 138 facing the inclined surface, lubricating oil can be sprayed onto the inclined surface and the driving gear 19 during work. As the sliding carrier plate 5 moves left and right, the oil can be evenly applied, thereby improving the timeliness of lubrication.

[0040] Reference Figure 4 、 Figure 6 and Figure 8 , the root of the ridge is provided with oil return holes 103 distributed at equal distances, and the bottom end of the rear rib 9 is provided with oil return hole 2 901 corresponding to the oil return hole 103 one by one, the bottom end of the front rib 2 is provided with multiple notches, and the root of the ridge is provided with a trumpet leakage hole 104 flared toward the front rib 2 near the middle, and the rear side of the groove rail body is provided with an oil return socket 105 communicating with the trumpet leakage hole 104 near the bottom; and the oil return pipe 136 passes through the oil return socket 105 and is plugged into the bottom end hole of the trumpet leakage hole 104; through such an arrangement, the oil scattered in the groove rail body can be quickly collected to form a circulation, so as to improve the utilization efficiency.

[0041] Reference Figure 5 、 Figure 6A plurality of anti-slip grooves are provided on the edge of the upper surface of the rack 3 away from the tooth surface, and a positioning pressure block 101 corresponding to the anti-slip groove is reserved on the upper surface of the auxiliary positioning protrusion 102. Positioning bolts are fixed in the middle of the positioning pressure block 101 and the middle of the corresponding anti-slip groove to tightly clamp the rack 3 and the groove rail body together to prevent axial or longitudinal shaking.

[0042] Reference Figure 4 The connection position between the oil outlet pipe 135 and the end of the piston oil barrel 131 is located at the bottom of the end of the piston oil barrel 131, and a spherical filter is provided at the end of the oil outlet pipe 135 close to the piston oil barrel 131, so that oil can still be sprayed out when the oil in the piston oil barrel 131 is not full.

[0043] Working principle: When the servo motor 10 is started to drive the sliding carrier plate 5 to move back and forth along the rail groove body, the arc-shaped rocker arm 16 swings left and right around the rotating axis under the combined action of the tension of the cable 20 and the rotating axis. At this time, the connecting rod 134 hinged on the side of the arc-shaped rocker arm 16 will continuously push the reciprocating push rod 133 back and forth, and cooperate with the one-way valve on the piston plate inside the piston oil barrel 131 to enable the piston oil barrel 131 to continuously recycle the oil inside the rail groove body, and then timely draw and spray the lubricating oil to the position where lubrication is most needed, thereby achieving synchronization of lubrication and startup.

[0044] Reference Figure 4 、 Figures 9-12 , a straightness detection device for a gear-assisted linear module, two steel wires 8 extending horizontally toward the end plate 1 6 are fixed near the top of the side of the end plate 2 18 close to the sliding carrier 5, and the two steel wires 8 are of equal height and symmetrically distributed. The top of the end plate 1 6 is embedded with two self-locking nuts 7 whose axis lines are parallel to each other, and the two self-locking nuts 7 are screwed with adjusting screws, and the two steel wires 8 are respectively fixed to the ends of the corresponding adjusting screws; the steel wires 8 can always be kept in a taut and horizontal state by the two adjusting screws; the lower surface of the sliding carrier 5 is located between the two steel wires 8 and is fixed with two mutually symmetrical The straightness detection block 23, the two straightness detection blocks 23 are both provided with a U-shaped notch 2201 on the side surface that is stuck in the outer wall of the steel wire 8, the two U-shaped notches 2201 are perpendicular to each other, the notch width of the U-shaped notch 2201 is greater than the diameter of the steel wire 8, and metal contacts 24 are provided on the inner walls on both sides of the U-shaped notch 2201 that are opposite to each other. Through such a setting, during the detection process, once the sliding carrier 5 has an overall upward and downward deviation or left and right deviation during the sliding process, the metal contacts 24 will be touched, and then the alarm circuit will be turned on, and the straightness of the device can be detected at this time.

[0045] Among them, the steel wire 8 does not contact the rail groove system 1 and the sliding carrier 5, and the distance between the steel wire 8 and the metal contact piece 24 is less than one millimeter. The spacing between the metal contact piece 24 and the steel wire 8 is adjustable. Through such a setting, the measurement accuracy can be adjusted as needed.

[0046] Working principle: Before using this device, first adjust the gap between the metal contact 24 and the steel wire 8 according to the allowable deviation amplitude, and then adjust the adjustment screw at the end of the steel wire 8 to ensure that the steel wire 8 is in a taut state. At this time, the steel wire 8 is not released from the metal contact 24. Once the sliding carrier 5 deviates up and down or left and right as a whole during the sliding process, it will touch the metal contact 24, and then connect the alarm circuit. At this time, it means that the sliding carrier 5 has slid to the alarm point and has deviated, and is not moving in a straight line.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A gear-assisted linear module, comprising a rail groove system (1), wherein the rail groove system (1) comprises a rail groove body with an upward opening and a "mountain"-shaped cross section, wherein end plates 1 (6) and 2 (18) are fixed to the left and right ends of the rail groove body, respectively, and a sliding carrier plate (5) is slidably connected to the rail groove body, characterized in that: A servo motor (10) is provided on the upper surface of one end of the sliding carrier (5) near the end plate 1 (6), a hinge seat (17) is fixed on the rear side of the rail groove body near one end of the end plate 2 (18), and a rotary shaft extending horizontally forward and backward is inserted near the top of the rear side of the hinge seat (17), a curved rocking rod (16) is fixed to the rear end of the rotary shaft, and a swing pulley 2 (14) is provided near the front end of the top of the curved rocking rod (16), and a groove-shaped cantilever rod (11) extending backward is provided on the rear side of the servo motor (10), and a pulley 1 (12) is provided at the other end of the groove-shaped cantilever rod (11), and a fixed pulley 3 (15) is provided on the upper surface of the rail groove body between the pulley 1 (12) and the hinge seat (17), and the pulley 1 (12), the swing pulley 2 (14) and the fixed pulley 3 (15) are on the same The outer circumferences of the three pulleys (12, 14, 15) are all provided with anti-slip grooves, and a cable (20) for controlling the movement of the sliding carrier (5) is wound in a zigzag shape between the pulley (12), the swing pulley (14), and the fixed pulley (15); an oiling mechanism (13) is provided on the rear side of the rail groove body, and the oiling mechanism (13) includes a piston oil barrel (131) with an overall hollow cylindrical structure, and the two ends of the piston oil barrel (131) are respectively connected with an oil outlet pipe (135) and an oil return pipe (136) communicating with the interior of the rail groove body, and the interior of the piston oil barrel (131) is slidably connected with a piston plate, and a reciprocating push rod (133) is fixed on the side of the piston plate close to the arc-shaped swing rod (16), and a connecting rod (134) is hinged between the end of the reciprocating push rod (133) and the side of the arc-shaped swing rod (16); The bottom of the rail groove body is respectively fixed with a front rib plate 1 (2) and a rear rib plate 2 (9) near the bottom corners of the front and rear sides, and the bottom of the rail groove body is reserved with a ridge running through both ends near the middle and rear sides, and the top of the ridge is reserved with an auxiliary positioning ridge (102), and the top of the ridge is fixed with a rack (3) with the tooth surface facing the middle, and the top of the output shaft of the servo motor (10) passes through the sliding carrier (5) and is fixed with a driving gear (19); an extension platform is reserved on one side of the sliding carrier (5) near the end plate 1 (6), and a motor balancing fixing frame (21) for fixing the servo motor (10) is fixed on the upper surface of the extension platform, and a bearing hole 2 (503) is opened in the middle of the extension platform, and the motor shaft of the servo motor (10) can smoothly pass through the bearing hole 2 (503); The tops of the front rib plate 1 (2) and the rear rib plate 2 (9) are respectively reserved with inclined surfaces in opposite directions, and the lower surface of the sliding carrier plate (5) is provided with a pressing mechanism (4) near the four corners. The cross section of the sliding carrier plate (5) is a "J"-shaped structure, and the front and rear sides of the sliding carrier plate (5) are respectively reserved with inclined baffles that are symmetrical to each other and parallel to the inclined surfaces. The two ends of the two inclined baffles are respectively provided with mutually symmetrical bearing holes 1 (501), and the bearing holes 1 (501) are embedded with sliding bearings (401). The sliding bearings (401) are slidably connected with a U-shaped sliding column (402) whose axis is perpendicular to the inclined surface on the side, and the bottom ends of the U-shaped sliding columns (402) are provided with rollers (403), and the rollers (403) roll on the inclined surface. The upper surface of the inclined baffle of the sliding carrier (5) is fixed with a bow-shaped push rod (404) spanning each bearing hole (501), and a pressing spring (405) is fixed between the lower surface of the bow-shaped push rod (404) and the top of the U-shaped sliding column (402); the front and rear edge horizontal bars of the sliding carrier (5) are both provided with square holes (502) near the corresponding pressing mechanism (4), and the square holes (502) are both embedded with ball seats (25), the upper surfaces of the ball seats (25) are both provided with spherical grooves, and the spherical grooves are both embedded with balls (26), the front and rear top edges of the rail groove body are both reserved with inward-rolled wings, and the lower surfaces of the wings are provided with ball grooves running through the left and right ends, and the balls (26) are rolled and clamped in the corresponding ball grooves.

2. The gear-assisted linear module according to claim 1, characterized in that: A spring groove is provided on the side of the articulated seat (17) away from the arc-shaped rocker arm (16), and a return coil spring (22) is fixed to the inner circumferential wall of the spring groove, and the other end of the return coil spring (22) is fixed to the rotary shaft. A C-shaped gear rod is fixed in the middle of the arc-shaped rocker arm (16), and the center of the C-shaped gear rod falls on the axis of the rotary shaft. A movable shaft is fixed on the side of the C-shaped gear rod away from the articulated seat (17), and one end of the connecting rod (134) close to the arc-shaped rocker arm (16) is sleeved on the movable shaft. The barrel mouth of the piston oil barrel (131) faces the articulated seat (17), and the piston oil barrel (131) is fixed to the inner circumferential wall of the spring groove. A barrel cover is fixed at the barrel mouth of the barrel (131), a sealing slip ring is embedded in the middle of the barrel cover, and a reciprocating push rod (133) is slidably inserted in the sealing slip ring; a one-way valve is embedded near the bottom end of the piston plate, and a fixing seat (132) for mounting the piston oil barrel (131) is also fixed on the rear side of the rail groove body; a drooping roller hanger (1101) is fixed to the end of the groove-shaped cantilever rod (11) away from the servo motor (10), and pulley one (12) is rotatably connected to the bottom end of the roller hanger (1101), and the height of pulley one (12) is consistent with the height of fixed pulley three (15).

3. The gear-assisted linear module according to claim 2, characterized in that: A three-way pipe (137) is inserted into the bottom of the groove of the rail groove body near the rear side, and the bottom end of the three-way pipe (137) extends downward to the lower surface of the rail groove body and is connected to the oil outlet pipe (135). The other two outlets of the three-way pipe (137) are both inserted with oiling rods (138), and the oiling rods (138) pass through the front rib plate 1 (2) and the rear rib plate 2 (9) to the two sides respectively toward the corresponding inclined surfaces, and a spray hole is opened on the side of one of the oiling rods (138) close to the driving gear (19).

4. The gear-assisted linear module according to claim 1, characterized in that: The root of the ridge is provided with oil return holes (103) distributed at equal distances, and the bottom end of the rear rib plate (9) is provided with oil return holes (901) corresponding to the oil return holes (103) one by one, the bottom end of the front rib plate (2) is provided with a plurality of notches, and the root of the ridge is provided with a trumpet leakage hole (104) flared toward the front rib plate (2) near the middle, and the rear side of the rail groove body is provided with an oil return plug hole (105) communicating with the trumpet leakage hole (104) near the bottom; and the oil return pipe (136) passes through the oil return plug hole (105) and is plugged into the bottom end opening of the trumpet leakage hole (104).

5. The gear-assisted linear module according to claim 4, characterized in that: A plurality of anti-slip grooves are formed on the edge of the upper surface of the rack (3) away from the tooth surface, and a positioning pressing block (101) corresponding to the anti-slip groove is reserved on the upper surface of the auxiliary positioning protrusion (102), and a positioning bolt is fixed in the middle of the positioning pressing block (101) and the middle of the corresponding anti-slip groove.

6. The gear-assisted linear module according to claim 5, characterized in that: The connection position between the oil outlet pipe (135) and the end of the piston oil barrel (131) is located at the lowest position of the end of the piston oil barrel (131), and a spherical filter is provided at the end of the oil outlet pipe (135) close to the piston oil barrel (131).

7. A straightness detection device for a gear-assisted linear module, comprising the gear-assisted linear module according to claim 6, characterized in that: Two steel wires (8) extending horizontally toward the first end plate (6) are fixed on one side of the second end plate (18) near the top of the sliding carrier (5), and the two steel wires (8) are of equal height and symmetrically distributed. Two self-locking nuts (7) with mutually parallel axis lines are embedded in the top of the first end plate (6), and the two self-locking nuts (7) are both screwed with adjusting screws, and the two steel wires (8) are respectively fixed to the ends of the corresponding adjusting screws; the lower surface of the sliding carrier (5) is fixed with two mutually symmetrical straightness detection blocks (23) between the two steel wires (8), and the sides of the two straightness detection blocks (23) are both provided with U-shaped notches (2201) that are stuck on the outer wall of the steel wire (8), and the directions of the two U-shaped notches (2201) are perpendicular to each other, the notch width of the U-shaped notch (2201) is greater than the diameter of the steel wire (8), and metal contacts (24) are provided on the inner walls of the two opposite sides of the U-shaped notch (2201).

8. The straightness detection device of the gear-assisted linear module according to claim 7, characterized in that: The steel wire (8) does not contact the rail groove system (1) and the sliding carrier (5), and the distance between the steel wire (8) and the metal contact (24) is less than one millimeter, and the spacing between the metal contact (24) and the steel wire (8) is adjustable.

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