A wheel train component machining conveying and positioning system

Abstract

The application relates to the technical field of workpiece conveying, in particular to a wheel train part machining conveying positioning system; the wheel train part machining conveying positioning system comprises a base, a lower conveying belt in transmission connection with the top of the base, lower trays uniformly and fixedly connected along a transmission direction of the lower conveying belt, limit columns arranged on the upper surface of the lower trays, a top base fixedly connected with the center of the upper surface of the base through a supporting plate, an upper conveying belt in transmission connection with the lower surface of the top base, upper trays uniformly and fixedly connected along a transmission direction of the upper conveying belt, upper supporting holes provided on the lower surface of the upper trays and used for inserting the upper end of the limit columns, and the like; in the conveying process of the lower conveying belt, the limit columns are clamped into the upper supporting holes of the upper trays, so that the upper end and the lower end of the limit columns are positioned, the limit columns drive the stacked ring-shaped blank parts to be more stable in the conveying process, and the unstable situation caused by the impact force of inertia and the like is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of workpiece conveying, in particular to a wheel train component machining conveying and positioning system. BACKGROUND

[0002] In the field of mechanical transmission, wheel train components are the core basic components of various transmission mechanisms, including gears, sprockets, pulleys, turbines and other parts that mainly function as rotary transmission, and are widely used in automobiles, machine tools, engineering machinery and many other industries. They are the key part of ensuring the power transmission and motion accuracy of equipment; among them, gears are one of the most widely used and highest precision transmission types, and the machining quality directly determines the running stability and service life of the entire transmission system. Therefore, the efficiency and reliability of the gear machining process have always been the focus of the industry.

[0003] Currently, there are two main machining methods for gear machining: the first is casting forming machining, which directly injects molten metal into a mold with a predetermined gear shape, and after the metal cools and solidifies, a preliminary gear blank is formed. Subsequent simple polishing can obtain the basic gear structure, which is suitable for producing gears with low precision requirements and relatively simple structures; the second is turning forming machining, which first prepares a ring-shaped gear blank, and then uses turning equipment to precisely cut the inner and outer circles, end faces and other parts of the ring-shaped blank, finally forming a gear that meets the design precision requirements. This method is more commonly used in high-end gear production scenarios because it can meet the machining needs of high-precision and complex structure gears.

[0004] For gears machined by turning forming, the machining process needs to go through several links such as blank conveying, positioning, cutting and detection. The conveying of ring-shaped blanks is particularly critical - a special conveying device is needed to orderly and stably convey batches of ring-shaped blanks to the machining station to connect the subsequent machining process. Currently, the industry mostly uses ring-shaped conveying belts as the core conveying carrier for gear blanks. The main function of this type of conveying belt is to achieve continuous and cyclic conveying of the blanks, and it is equipped with vertical columns on the surface (used to limit the ring-shaped blanks) to form an orderly conveying structure for batches of blanks.

[0005] Specific conveying process as follows: first, the loading operation, the operator or loading equipment will be stacked in the annular gear blank piece one by one on the vertical column of the annular conveyor belt, so that each column forms a vertical stack of blank pieces; after loading is completed, the annular conveyor belt starts and drives along the preset trajectory, driving the blank piece set on the column to move synchronously until the stacked blank piece is conveyed to the designated processing position; when the blank piece reaches the processing position, the mechanical arm will accurately grab the blank piece on the column and transfer it to the clamp of the processing equipment, completing the transfer of the blank piece from the conveying device to the processing equipment, and then the annular conveyor belt continues to drive the next column of blank pieces to the processing position, realizing continuous processing connection.

[0006] However, the existing gear blank conveying structure based on the annular conveyor belt and the vertical column has obvious conveying stability problems in actual application: in order to improve the conveying efficiency, the height of the stacked annular blank on the column is usually high, and the vertical column is only fixedly connected with the surface of the annular conveyor belt at the bottom, and the top is in a free state; when the annular conveyor belt starts or stops, the stacked blank will generate an impact force in the conveying direction due to inertia, which directly acts on the vertical column. Under the long-term repeated action, not only is it easy to cause the stacked blank to shake, shift, and even cause the loosening and cracking of the connection position between the column and the conveyor belt, thereby causing the blank to fall off, the conveying to be interrupted, and other problems, which seriously affects the continuity of gear processing and production efficiency, and also increases the equipment maintenance cost and safety hazard. SUMMARY

[0007] In order to make up for the shortcomings of the prior art, the present application provides a wheel train component machining conveying and positioning system, which positions the limiting column in the upper supporting hole of the upper supporting tray during conveying by the lower conveyor belt, so that the upper end and the lower end of the limiting column are positioned, and the limiting column drives the stacked annular blank to be more stable during conveying, avoiding unstable conditions caused by inertial impact.

[0008] The technical scheme adopted by the present application to solve its technical problems is: a wheel train part machining, conveying and positioning system, comprising a base and a lower conveying belt transmission connected on the top of the base; the lower conveying belt is uniformly fixedly connected with lower trays along the transmission direction; the upper surface of the lower tray is provided with a limiting column; the upper surface of the base is fixedly connected with a top base through a support plate; the lower surface of the top base is transmission connected with an upper conveying belt; the upper conveying belt is uniformly fixedly connected with upper trays along the transmission direction; the lower surface of the upper tray is provided with an upper tray hole for the upper end of the limiting column to insert; the lower tray is provided with a lower tray hole penetratingly arranged on the upper and lower surfaces and corresponding to the limiting column; the lower end of the limiting column extends into a ring-shaped bottom groove in the base through the lower tray hole; the inner wall of the ring-shaped bottom groove is fixedly connected with a ring-shaped guide plate for supporting the limiting column; the ring-shaped guide plate is provided with a plurality of guide grooves along the transmission direction; the guide grooves are provided with guide plates; and the two guide plates are inclined downward.

[0009] Preferably, the top of the base is rotationally connected with two lower rollers; the lower conveying belt is transmission connected on the outer wall of the two lower rollers; one of the lower rollers is driven by a motor; the lower tray and the upper tray are both disc-shaped; the edge of the lower tray is movably connected in the lower rail groove on the inner and outer sides of the top of the base; the inside of the top base is rotationally connected with two upper rollers; the upper conveying belt is transmission connected on the outer wall of the two upper rollers; the edge of the upper tray is movably connected in the upper rail groove on the inner and outer sides of the lower part of the top base.

[0010] Preferably, the inner groove wall of the ring-shaped bottom groove is provided with a first rotating hole; the outer groove wall of the ring-shaped bottom groove is provided with a second rotating hole penetratingly arranged; the second rotating hole is movably connected with a rotating rod; the inner end of the rotating rod can be inserted into the first rotating hole; the edge of the guide plate is fixedly connected with the rotating rod; the inner wall of the guide groove away from the rotating rod is provided with a clamping groove along the axial direction of the rotating rod; the clamping groove is movably connected with a clamping block fixedly connected with the guide plate; the upper and lower inner walls of the clamping groove are provided with a block withdrawing groove penetratingly arranged.

[0011] Preferably, the arc-shaped outer wall of the outer end of the rotating rod is rotationally connected with a pull ring; the pull ring is fixedly connected with the outer wall of the base through a first tension spring.

[0012] Preferably, the inner wall of the upper tray hole is slidably connected with an upper pushing block; the upper surface of the upper pushing block is connected with the hole bottom of the upper tray hole through a first spring.

[0013] Preferably, the outer wall of the limiting column is provided with an expansion groove along the circumference; the expansion groove is slidably connected with an expansion strip along the radial direction of the limiting column; the expansion strip and the inner wall of the expansion groove are connected through a second tension spring; the upper pushing block is inverted conical; the upper end of the expansion strip is higher than the upper end of the limiting column in the vertical direction.

[0014] Preferably, the upper supporting hole and the lower supporting hole have the same diameter; and the length of the expansion groove is greater than the distance between the upper supporting hole and the lower supporting hole.

[0015] Preferably, the inner wall of the annular bottom groove is movably connected with an annular bottom plate; the annular bottom plate is provided with a threaded hole penetrating therethrough; and the threaded hole is threadedly connected with a bolt.

[0016] Preferably, the base is provided with a maintenance groove penetrating laterally and communicating with the annular bottom groove; the maintenance groove is provided with a maintenance door; and the depth of the annular bottom groove is greater than the length of the limiting column.

[0017] The present application has the following advantages:

[0018] 1. The limiting column is clamped into the upper supporting hole of the upper tray during the conveying process of the lower conveying belt, so that the upper end and the lower end of the limiting column are positioned, and the stacked annular blank is more stable during the conveying process driven by the limiting column, avoiding the unstable situation caused by inertial impact force.

[0019] 2. The annular guide plate is provided with a plurality of guide grooves at different positions, so that the present application can select the corresponding feeding and unloading positions according to the feeding and unloading requirements, thereby meeting the conveying requirements of different situations.

[0020] 3. The expansion strip on the outer wall of the limiting column slides along the radial direction and cooperates with the conical surface of the pushing block, so that the upper end of the limiting column can be smoothly inserted into the upper supporting hole while ensuring the limiting effect of the upper end of the limiting column, thereby improving the limiting stability of the limiting column. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is Figure 1 is an enlarged view of A in FIG. 1;

[0024] Figure 3 is Figure 1 is an enlarged view of B in FIG. 1;

[0025] Figure 4 is Figure 1 is a perspective view from another angle;

[0026] Figure 5 is Figure 4 is an enlarged view of C in FIG. 1;

[0027] Figure 6 is a position diagram of the upper track groove in the present application;

[0028] Figure 7 is Figure 6 an enlarged view of D in FIG.

[0029] Figure 8 is a perspective view of the base and the top base of the present application;

[0030] Figure 9 is a perspective view of the annular guide plate of the present application;

[0031] Figure 10 is Figure 9 an enlarged view of E in FIG.

[0032] Figure 11 is a perspective view of the guide plate of the present application;

[0033] Figure 12 is a perspective view of the lower conveyor belt of the present application;

[0034] Figure 13 is a perspective view of the upper conveyor belt of the present application;

[0035] Figure 14 is a perspective view of the limit post, the upper tray and the lower tray of the present application;

[0036] Figure 15 is a perspective view of the limit post of the present application;

[0037] Figure 16 is a sectional view of the present application;

[0038] Figure 17 is a sectional view of the limit post of the present application.

[0039] In the figure: base 1, support plate 11, annular bottom groove 12, lower roller 13, motor 14, lower rail groove 15, first rotating hole 16, second rotating hole 17, maintenance groove 18, maintenance door 19, lower conveyor belt 2, lower tray 3, lower tray hole 31, limit post 4, expansion groove 41, expansion strip 42, second tension spring 43, top base 5, upper roller 51, upper rail groove 52, upper conveyor belt 6, upper tray 7, upper tray hole 71, upper push block 72, first spring 73, annular guide plate 8, guide groove 81, guide plate 82, rotating rod 83, clamping groove 84, clamping block 85, retreat block groove 86, pull ring 87, first tension spring 88, annular bottom plate 9, threaded hole 91, bolt 92. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0041] As Figures 1 to 17 shown, the present application includes the following embodiments:

[0042] The embodiment 1 is a wheel train component processing conveying positioning system, which comprises a base 1 and a lower conveying belt 2 connected with the top of the base 1; the lower conveying belt 2 is uniformly and fixedly connected with a lower tray 3 along the transmission direction; the upper surface of the lower tray 3 is provided with a limiting column 4; the upper surface of the base 1 is fixedly connected with a top base 5 through a support plate 11; the lower surface of the top base 5 is connected with an upper conveying belt 6; the upper conveying belt 6 is uniformly and fixedly connected with an upper tray 7 along the transmission direction; the lower surface of the upper tray 7 is provided with an upper tray hole 71 for the upper end of the limiting column 4 to insert; the lower tray 3 is provided with a lower tray hole 31 corresponding to the limiting column 4; the lower end of the limiting column 4 extends into a ring-shaped bottom groove 12 in the base 1 through the lower tray hole 31; the ring-shaped bottom groove 12 is fixedly connected with a ring-shaped guide plate 8 for supporting the limiting column 4; the ring-shaped guide plate 8 is provided with a plurality of guide grooves 81 along the transmission direction; the guide grooves 81 are provided with guide plates 82; and two of the guide plates 82 are downwardly inclined.

[0043] In the embodiment, the top of the base 1 is rotatably connected with two lower rollers 13; the lower conveying belt 2 is connected with the outer wall of the two lower rollers 13; one of the lower rollers 13 is driven by a motor 14; the lower tray 3 and the upper tray 7 are both disc-shaped; the edge of the lower tray 3 is movably connected in a lower rail groove 15 on the top of the base 1; the inside of the top base 5 is rotatably connected with two upper rollers 51; the upper conveying belt 6 is connected with the outer wall of the two upper rollers 51; and the edge of the upper tray 7 is movably connected in an upper rail groove 52 on the lower part of the top base 5.

[0044] The positioning system has a feeding position and a discharging position; at the feeding position, the upper end of the limiting column 4 is removed from the upper tray hole 71 of the corresponding upper tray 7, and an upper feeding gap is formed between the upper end of the limiting column 4 and the upper tray 7; the guide plate 82 at the feeding position is in a downwardly inclined state; the lower end of the limiting column 4 abuts against the upper surface of the guide plate 82 at the feeding position; the guide plate 82 is inclined downwardly, so that the lower end of the limiting column 4 passes through the guide groove 81; the lower end of the limiting column 4 is lower than the ring-shaped guide plate 8 in the vertical direction; a ring-shaped blank (not limited to a blank, which can be a rough machining part) can be sleeved on the corresponding limiting column 4 along the upper feeding gap, and finally falls on the upper surface of the corresponding lower tray 3.

[0045] In order to ensure the conveying efficiency, a plurality of annular blank pieces are stacked on the outer wall of the limiting column 4, and then the motor 14 drives one of the lower rollers 13 to rotate, which drives the lower conveying belt 2 to drive the plurality of lower trays 3 connected to the upper surface to move, and all the lower trays 3 are driven by the lower conveying belt 2, the edges of the lower trays 3 are movably connected to the two lower track grooves 15 inside and outside the base 1, which supports the lower trays 3, so that the lower trays 3 can hold the stacked annular blank pieces, the limiting column 4 inside the annular blank piece serves the purpose of limiting, and the limiting column 4 moves with the lower tray 3, the lower end of the limiting column 4 moves upward under the guidance of the inclined guide plate 82 of the feeding position, and the lower end of the limiting column 4 transitions from the inclined guide plate 82 to the annular guide plate 8, the upper end of the limiting column 4 is clamped into the upper tray hole 71 of the upper tray 7, which realizes the positioning of the upper end of the limiting column 4, and after the upper end and the lower end of the limiting column 4 are positioned, the strength of the limiting column 4 is improved, so that the limiting column 4 can avoid unstable conditions caused by inertia and impact force during conveying of the plurality of stacked annular blank pieces, effectively avoiding shaking and deviation of the annular blank pieces, reducing the risk of loosening and cracking of the connection position of the limiting column 4 and the lower tray 3, making the annular blank piece conveying more stable, and prolonging the service life of the limiting column 4.

[0046] After the upper end of the limiting column 4 is clamped into the corresponding upper tray hole 71, the limiting column 4 and the stacked annular blank pieces outside are moved with the lower conveying belt 2, and during repeated start and stop of the limiting column 4, the upper end and the lower end of the limiting column 4 are positioned; the upper tray 7 moves with the movement of the limiting column 4, and the upper tray 7 drives the upper conveying belt 6 to move during movement, and the upper conveying belt 6 moves along the two upper rollers 51, and the edges of the upper tray 7 are movably connected to the two upper track grooves 52 inside and outside the lower part of the top seat 5, which can support and vertically limit the upper tray 7, and the upper conveying belt 6 is synchronously driven by the lower conveying belt 2.

[0047] After the limiting post 4 and the outer stacked annular blank are driven to the unloading position, the lower end of the limiting post 4 will enter the guide groove 81 of the unloading position. The guide plate 82 of the unloading position is inclined downwards, so the lower end of the limiting post 4 will move down and be lower than the annular guide plate 8. The lower end of the limiting post 4 will abut against the upper surface of the guide plate 82 of the unloading position. The upper end of the limiting post 4 moves out of the upper support hole 71 as the limiting post 4 moves down, releasing the positioning of the upper end of the limiting post 4. An unloading gap will be formed between the upper end of the limiting post 4 and the upper tray 7, thus allowing the machine to pass through. The robotic arm removes the stacked annular blanks fitted on the outside of the limiting post 4 along the unloading gap. The unloaded annular blanks will be processed. After all the annular blanks on the outside of the limiting post 4 are unloaded, the lower conveyor belt 2 will drive the lower tray 3 and the limiting post 4 to move. The lower end of the limiting post 4 will move upward under the guidance of the guide plate 82 at the unloading position, and the upper end of the limiting post 4 will re-engage in the upper support hole 71. The lower end of the limiting post 4 will transition back to the upper surface of the annular guide plate 8. The unloaded limiting post 4 will rotate back to the loading position with the transmission of the lower conveyor belt 2, and so on.

[0048] It should be noted that the workpieces conveyed by this invention are not limited to annular blanks, but also include annular rough-machined parts, etc., all of which are suitable for conveying and positioning by this system.

[0049] The present invention uses a limiting post 4 to be inserted into the upper support hole 71 of the upper tray 7 during the conveying process of the lower conveyor belt 2, so that the upper end and the lower end of the limiting post 4 are positioned, thereby making the conveying process of the stacked annular blanks more stable and avoiding instability caused by inertia and other impact forces.

[0050] Example 2: The annular bottom groove 12 has a first rotating hole 16 near its inner wall; the annular bottom groove 12 has a second rotating hole 17 through its outer wall; a rotating rod 83 is movably connected in the second rotating hole 17; one inner end of the rotating rod 83 can be inserted into the first rotating hole 16; the edge of the guide plate 82 is fixedly connected to the rotating rod 83; the guide groove 81 has a slot 84 along the axial direction of the rotating rod 83 away from the inner wall of the guide groove 83; a locking block 85 fixedly connected to the guide plate 82 is movably connected in the slot 84; and a block retraction groove 86 is provided through the upper and lower inner walls of the slot 84.

[0051] In this embodiment, the outermost arc-shaped outer wall of the rotating rod 83 is rotatably connected to the pull ring 87; the pull ring 87 is fixedly connected to the outer wall of the base 1 by the first tension spring 88.

[0052] The ring-shaped guide plate 82 is provided with a plurality of position guide grooves 81, the guide plate 82 in the guide groove 81 has two states, one of which is a horizontal state, and the other is an inclined state, the guide plate 82 in the horizontal state is integrated with the ring-shaped guide plate 8 horizontally, and the guide plate 82 in the inclined state is disconnected with one edge of the ring-shaped guide plate 8, in the case of needing to change the guide plate 82 to be inclined, the rotating rod 83 is first pulled out, the rotating rod 83 is moved out along the first rotating hole 16 and the second rotating hole 17, the rotating rod 83 drives the guide plate 82 to move in the guide groove 81, the guide plate 82 drives the clamping block 85 to slide along the clamping groove 84 and moves the block withdrawal groove 86, then the rotating rod 83 drives the guide plate 82 to turn down, the guide plate 82 drives the clamping block 85 to exit the clamping groove 84 along the block withdrawal groove 86, the guide plate 82 is turned down to form an inclined state, and in the case of needing to change the guide plate 82 to be horizontal, the rotating rod 83 is pushed in along the first rotating hole 16 and the second rotating hole 17, the rotating rod 83 drives the guide plate 82 to move in, the guide plate 82 drives the clamping groove 84 to align with the block withdrawal groove 86, the guide plate 82 is turned up, the guide plate 82 drives the clamping block 85 to enter the clamping groove 84 along the block withdrawal groove 86, then the guide plate 82 is pushed in, the guide plate 82 drives the clamping block 85 to disengage from the clamping groove 84 and the block withdrawal groove 86, and the guide plate 82 is changed from the inclined state to the horizontal state.

[0053] Since the ring-shaped guide plate 8 is provided with a plurality of position guide grooves 81, the present application can select the corresponding feeding and discharging position according to the feeding and discharging demand, so as to meet the conveying demand in different situations, further, the arc-shaped outer wall at the outer end of the rotating rod 83 is rotationally connected with the pull ring 87, the pull ring 87 is connected with the outer wall of the base 1 through the first tension spring 88, the first tension spring 88 can give the rotating rod 83 at the outer end an inward pulling force, so that the rotating rod 83 drives the clamping block 85 on the guide plate 82 to disengage from the block withdrawal groove 86, so that the clamping block 85 is limited in the clamping groove 84, and the stability of the guide plate 82 in the horizontal state is ensured, since the clamping block 85 is located in the clamping groove 84, the guide plate 82 can keep the same level with the ring-shaped guide plate 8, and the support and transition of the limiting column 4 at the lower end are realized.

[0054] In embodiment 3, the upper push block 72 is slidably connected to the inner wall of the upper supporting hole 71, and the upper surface of the upper push block 72 is connected to the hole bottom of the upper supporting hole 71 through the first spring 73.

[0055] In the stage of moving out of the loading position and the unloading position, the driving of the lower conveying belt 2 drives the lower tray 3 and the limiting column 4 to move along the driving direction, the lower end of the limiting column 4 moves upward under the guidance of the corresponding inclined guide plate 82, and the limiting column 4 moves upward along the lower supporting hole 31, the lower end of the limiting column 4 is inserted into the upper supporting hole 71 and presses the upper pushing block 72, the upper pushing block 72 moves upward along the inner wall of the upper supporting hole 71 against the elastic force of the first spring 73 under the pressing of the upper end of the limiting column 4, the storage process of the first spring 73 is completed, and the upper end of the limiting column 4 is positioned after the lower end of the limiting column 4 is inserted into the upper supporting hole 71; if the driving of the lower conveying belt 2 drives the lower tray 3 and the limiting column 4 to move along the driving direction in the stage of moving into the loading position and the unloading position, the lower end of the limiting column 4 is not restricted and lifted after entering the range of the inclined guide plate 82, the upper pushing block 72 moves downward under the elastic force of the first spring 73, the first spring 73 transmits the elastic force to the limiting column 4 through the upper pushing block 72, the limiting column 4 quickly moves downward under the action of the gravity and the elastic force of the first spring 73, and thus the upper end of the limiting column 4 quickly forms a gap with the corresponding upper tray 7, so that the loading and unloading are quickly performed, and the speed of opening the loading gap and the unloading gap is improved.

[0056] In example 4, the outer wall of the limiting column 4 is provided with an expansion groove 41 in the circumferential direction, the expansion groove 41 is connected with an expansion strip 42 which slides along the radial direction of the limiting column 4, the expansion strip 42 and the inner wall of the expansion groove 41 are connected by a second tension spring 43, the upper pushing block 72 is in an inverted conical shape, and the upper end of the expansion strip 42 is higher than the upper end of the limiting column 4 in the vertical direction.

[0057] In the example, the upper supporting hole 71 and the lower supporting hole 31 have the same hole diameter, and the length of the expansion groove 41 is greater than the hole distance of the upper supporting hole 71 and the lower supporting hole 31.

[0058] In the state that the upper end of the limiting column 4 is not inserted into the upper supporting hole 71, the expansion strip 42 is pulled into the expansion groove 41 by the corresponding second tension spring 43, so that the overall diameter of the limiting column 4 and the expansion strip 42 is small, and thus the annular blank or other annular workpieces can be easily loaded or unloaded, that is, the workpieces can be easily loaded or unloaded from the outside of the limiting column 4, after the loading or unloading of the workpieces outside the limiting column 4 is completed, the lower end of the limiting column 4 moves upward under the guidance of the corresponding guide plate 82, the limiting column 4 drives the expansion strip 42 to move upward synchronously in the process of moving upward, the limiting column 4 drives the upper end of the plurality of expansion strips 42 to enter the upper supporting hole 71, since the diameter of the plurality of expansion strips 42 is smaller than the inner diameter of the upper supporting hole 71 before expansion, the upper end of the plurality of expansion strips 42 can easily enter the inside of the upper supporting hole 71, so that the jamming is avoided, and the upper end of the limiting column 4 is prepared for positioning.

[0059] The expansion strip 42 driven by the limiting column 4 will contact the lower surface of the push block 72 after entering the inside of the upper supporting hole 71, the push block 72 is in the shape of an inverted cone, so that under the guidance of the tapered surface of the push block 72, the plurality of expansion strips 42 will slide away from the center of the limiting column 4 along the expansion groove 41, and the plurality of expansion strips 42 will be expanded outward during the process of moving away from the center of the limiting column 4, overcoming the tension of the second tension spring 43, and the plurality of expansion strips 42 will be expanded outward and abut against the inner wall of the upper supporting hole 71, realizing that the overall diameter of the limiting column 4 and the expansion strip 42 is adapted to the upper supporting hole 71, ensuring the limiting effect of the upper end of the limiting column 4, and avoiding the loosening and shaking of the upper end of the limiting column 4.

[0060] In the embodiment, the expansion strip 42 on the outer wall of the limiting column 4 slides along the radial direction and cooperates with the tapered surface of the push block 72, so that the upper end of the limiting column 4 can be smoothly inserted into the upper supporting hole 71 while ensuring the limiting effect of the upper end of the limiting column 4, thereby improving the limiting stability of the limiting column 4; further, the length of the expansion groove 41 is greater than the distance between the upper supporting hole 71 and the lower supporting hole 31, so that the expansion strip 42 in the expansion groove 41 will also clamp the lower supporting hole 31 during the expansion process, avoiding the shaking of the lower end of the limiting column 4 in the lower supporting hole 31, and making the workpiece conveying more stable.

[0061] When the limiting column 4 returns to the loading position or the unloading position again, the limiting column 4 will move downward, the upper end of the limiting column 4 will drive the expansion strip 42 to move out of the upper supporting hole 71, and the second tension spring 43 will pull the expansion strip 42 to retract into the expansion groove 41, so that the overall diameter of the limiting column 4 and the expansion strip 42 becomes smaller, the limiting column 4 loosens in the workpiece and the inside of the lower supporting hole 31, so that the limiting column 4 can move downward faster in the loosened state, and it is convenient to load and unload the workpiece.

[0062] In the embodiment, the inner wall of the annular bottom groove 12 is movably connected with the annular bottom plate 9; the annular bottom plate 9 is provided with a threaded hole 91 penetrating upward and downward; and the threaded hole 91 is threadedly connected with a bolt 92.

[0063] In the embodiment, the base 1 is provided with a maintenance groove 18 communicating with the annular bottom groove 12 and penetrating laterally; the maintenance groove 18 is provided with a maintenance door 19; and the depth of the annular bottom groove 12 is greater than the length of the limiting column 4.

[0064] Before conveying, open the inspection door 19 and tighten the bolts 92 to move the annular base plate 9 up or down. There are multiple bolts 92 and inspection door 19; these multiple bolts ensure the support effect of the annular base plate 9. The vertical height of the annular base plate 9 within the annular groove 12 directly affects the position of the limiting post 4 after it moves down. If the upper end of the limiting post 4 is lower than the height of the stacked workpieces when it is in the unloading position, the workpieces may fall off the limiting post 4 due to inertia. If the limit post 4 moves downward, the stacked workpieces may not be able to be connected by the upward movement of the limit post 4 and may fall off directly. Therefore, the upper end of the limit post 4 should not be lower than the height of the stacked workpieces after it moves downward. The height of the stacked workpieces is set according to the requirements. The lower the upper end of the limit post 4 is, the easier it is to load and unload the workpieces. Therefore, it is necessary to control the height of the limit post 4 after it moves downward to be adjustable to meet different usage requirements. In addition, when the annular base plate 9 moves to the lower limit position, the limit post 4 can be controlled to be pulled out from the lower support hole 31 for replacement and maintenance. It should be noted that the lower end of the limit post 4 is spherical.

[0065] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel train component processing conveying positioning system, comprising a base and a lower conveying belt connected in transmission on top of the base; the lower conveying belt is uniformly fixedly connected with a lower tray along a transmission direction; the upper surface of the lower tray is provided with a limiting column; characterized in that: The upper surface center of the base is fixedly connected with the top base through a support plate; the lower surface of the top base is drivingly connected with the upper conveying belt; the upper conveying belt is uniformly fixedly connected with the upper tray along the transmission direction; the lower surface of the upper tray is provided with an upper supporting hole into which the upper end of a limiting column is inserted; the lower tray is provided with a lower supporting hole penetrating through the upper and lower surfaces and corresponding to the limiting column; the lower end of the limiting column extends into the annular bottom groove in the base through the lower supporting hole; the inner wall of the annular bottom groove is fixedly connected with an annular guide plate supporting the limiting column; the annular guide plate is provided with a plurality of guide grooves along the transmission direction; the guide grooves are provided with guide plates; two of the guide plates are downwardly inclined; The inner wall of the annular bottom groove is provided with a first rotating hole; the outer wall of the annular bottom groove is provided with a second rotating hole penetrating through; the second rotating hole is movably connected with a rotating rod; the inner end of the rotating rod can be inserted into the first rotating hole; the edge of the guide plate is fixedly connected with the rotating rod; the inner wall of the guide groove away from the rotating rod is provided with a clamping groove along the axial direction of the rotating rod; the clamping groove is movably connected with a clamping block fixedly connected with the guide plate; the upper and lower inner walls of the clamping groove are provided with a clamping block withdrawing groove penetrating through; The inner wall of the upper supporting hole is slidably connected with an upper pushing block; the upper surface of the upper pushing block is connected with the hole bottom of the upper supporting hole through a first spring; the outer wall of the limiting column is provided with an expansion groove along the circumference; the expansion groove is slidably connected with an expansion strip along the radial direction of the limiting column; the expansion strip and the inner wall of the expansion groove are connected through a second tension spring; the upper pushing block is in the shape of an inverted cone; the upper end of the expansion strip is higher than the upper end of the limiting column in the vertical direction.

2. A driveline component machining, conveying and positioning system according to claim 1, wherein: The top of the base is rotatably connected with two lower rollers; the lower conveying belt is drivingly connected to the outer walls of the two lower rollers; one of the lower rollers is driven by a motor; the lower tray and the upper tray are both disc-shaped; the edge of the lower tray is movably connected in the lower track groove on the inner and outer sides of the top of the base; the inner part of the top base is rotatably connected with two upper rollers; the upper conveying belt is drivingly connected to the outer walls of the two upper rollers; the edge of the upper tray is movably connected in the upper track groove on the inner and outer sides of the lower part of the top base.

3. A driveline component machining, conveying and positioning system according to claim 1, wherein: The arc-shaped outer wall of the outer end of the rotating rod is rotatably connected with a pull ring; the pull ring is fixedly connected with the outer wall of the base through a first tension spring.

4. A driveline component machining, conveying and positioning system according to claim 1, characterized in that: The hole diameters of the upper supporting hole and the lower supporting hole are consistent; the length of the expansion groove is greater than the hole distance of the upper supporting hole and the lower supporting hole.

5. A driveline component machining, conveying, and positioning system according to claim 1, wherein: The inner wall of the annular bottom groove is movably connected with an annular bottom plate; the annular bottom plate is provided with a threaded hole penetrating through the upper and lower surfaces; the threaded hole is threadedly connected with a bolt.

6. A wheel train component machining transport and positioning system according to claim 5, wherein: The base is provided with an inspection groove penetrating through the side and communicating with the annular bottom groove; the inspection groove is provided with an inspection door; the depth of the annular bottom groove is greater than the length of the limiting column.

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