Trapezoidal lead screw assembly assembling device
The trapezoidal screw assembly device enables precise assembly of oil seals and bearings, precise tightening of nuts, and control of grease application. This solves the problems of slow speed and low efficiency in traditional manual assembly, improves assembly quality and stability, and saves manpower and time costs.
Patent Information
- Application Number
- CN202423186131.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional manual assembly of trapezoidal lead screw assemblies is slow, inefficient, and produces poor assembly quality. Furthermore, the lack of effective positioning and tool support leads to loose connections and inadequate lubrication, affecting the stability and lifespan of the assembly.
The trapezoidal screw assembly device includes a mounting frame, a translation device, a grease application fixture, a lifting device, and a pressing device. By precisely controlling the pressing force and depth of the oil seal and bearing, the tightening force and tightening angle of the nut, as well as the amount of grease and glue applied during the assembly process, automated assembly is achieved.
This improves the assembly quality and stability of the trapezoidal lead screw assembly, reduces labor and time costs, and ensures efficient and reliable assembly speed and a high pass rate.
Smart Images
Figure CN223748989U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to trapezoidal screw rod production and manufacturing field, especially trapezoidal screw rod assembly device. BACKGROUND
[0002] The traditional trapezoidal screw rod assembly is usually assembled manually, and the assembly workers need to install and debug the screw rod, nut, bearing and other parts one by one. This method not only has high labor intensity, but also has slow assembly speed and low assembly efficiency, which cannot meet the needs of large-scale production. For example, in a medium-sized mechanical manufacturing enterprise, a large number of screw rod assemblies need to be assembled every day, and if only manual assembly is relied on, a lot of time and labor cost will be consumed. Moreover, there is a lack of effective tooling and tool support during the assembly process. For the installation of the screw rod and the nut, there is usually no specially designed positioning and installation clamp, which leads to inaccurate positioning of the parts during assembly, and repeated adjustment is needed, which increases the assembly time. At the same time, when tightening the nut and connecting other parts, the tools used are relatively simple, and the uniformity and accuracy of the tightening torque cannot be guaranteed, which will affect the assembly quality and stability of the assembly.
[0003] In addition, under the traditional manual assembly method, the connection parts of the screw rod assembly are prone to looseness. For example, the connection between the screw rod and the motor shaft, and the connection between the nut and the support seat. If the tightening torque is not enough or effective anti-looseness measures are not taken, these connection parts will gradually loosen during the operation of the equipment due to vibration and alternating load, which will cause abnormal transmission of the screw rod, and even cause equipment failure. Moreover, the lubrication of the screw rod is not perfect under the traditional manual assembly method. During the assembly process, the screw rod is not lubricated sufficiently many times, which leads to increased friction and accelerated wear of the screw rod during operation, thereby reducing the service life of the screw rod assembly. SUMMARY
[0004] The main purpose of the utility model is to provide a trapezoidal screw rod assembly device, which aims to solve the problems of slow speed, low efficiency and low assembly quality of current manual assembly of trapezoidal screw rod assemblies.
[0005] To solve the above problems, the utility model provides a trapezoidal screw rod assembly device, which comprises a mounting frame, a translation device one, a grease filling tool, a lifting device one and a pressing device arranged on the mounting frame. The translation device one is provided with a screw rod seat cylinder and a bearing seat. The lower end of the pressing device is connected with an oil seal pressing head and a bearing pressing head. The screw rod seat cylinder can be moved to the position directly below the oil seal pressing head under the driving of the translation device one. The bearing seat can be moved to the position directly below the bearing pressing head under the driving of the translation device one. The lifting device one is connected with a motor. The motor is drivingly connected with a tightening sleeve and a glue adding machine. The screw rod seat cylinder can be moved to the position below the tightening sleeve and the glue adding machine under the driving of the translation device one.
[0006] In an embodiment, the mounting frame comprises a bottom plate and a top plate arranged above the bottom plate, the top plate and the bottom plate are fixedly connected by a plurality of columns, a mounting plate is arranged between the top plate and the bottom plate, and the mounting plate is slidably connected to the columns;
[0007] The pressing device is mounted on the top plate, the oil seal pressing head and the bearing pressing head are mounted on the mounting plate, and the translation device one is mounted on the bottom plate.
[0008] In an embodiment, a linear bearing is vertically slidably mounted on the column, the linear bearing is fixedly connected to the mounting plate, a limiting ring one is fixedly mounted on the column, and the limiting ring one is located below the linear bearing.
[0009] In an embodiment, the mounting plate is provided with a translation device two, the oil seal pressing head and the bearing pressing head are mounted on the translation device two, and the translation direction of the translation device two is the same as that of the translation device one.
[0010] In an embodiment, a clamping ring is coaxially arranged below the bearing pressing head, a lifting device two is fixedly mounted on the side surface of the bearing pressing head, and the lifting device two is connected to the clamping ring.
[0011] In an embodiment, the clamping ring is an open ring.
[0012] In an embodiment, the lower surface of the oil seal pressing head is inwardly recessed to form a mounting hole for accommodating the oil seal, and a limiting ring two is arranged on the hole wall of the mounting hole.
[0013] In an embodiment, the motor comprises a motor one and a motor two, the motor one is vertically arranged, the lower end of the motor one is connected to the glue adding machine, the screw rod seat cylinder is movable to a position coaxial with the motor one under the driving of the translation device one, and the glue adding machine rotates around the screw rod seat cylinder in the coaxial position with the motor one under the driving of the motor one.
[0014] The motor two is vertically arranged, and the lower end of the motor two is connected to the tightening sleeve.
[0015] In an embodiment, the lower end of the motor one is further connected to a position sensor, and the position sensor is used to detect the ground clearance of itself.
[0016] In an embodiment, the fat adding tool comprises a translation device three and a constant flow valve connected to the translation device three.
[0017] Beneficial effects: the trapezoidal screw rod assembly assembling device can accurately ensure the pressing force and pressing depth during the assembly of the oil seal and bearing, accurately ensure the tightening force and tightening angle of the nut, and the amount of grease and amount of glue during the assembly process of the screw rod, the assembly quality is high, the assembled trapezoidal screw rod assembly is stable, reliable, fast and efficient, which not only ensures the high assembly efficiency and qualified rate of the trapezoidal screw rod assembly product, but also greatly saves the labor cost and time cost. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0019] Figure 1 is a structure diagram of a trapezoidal screw rod assembly assembling device of the present application Figure 1 ;
[0020] Figure 2 is a structure diagram of a trapezoidal screw rod assembly assembling device of the present application Figure 2 ;
[0021] Figure 3 is a structure diagram of a trapezoidal screw rod assembly assembling device of the present application Figure 3 .
[0022] The following is a description of the drawings:
[0023] 1, bottom plate; 2, top plate; 3, pressing device; 4, translation device one; 5, lifting device one; 6, screw rod seat cylinder; 7, bearing seat; 8, column; 9, limit ring one; 10, linear bearing; 11, mounting plate; 12, translation device two; 13, bearing pressing head; 14, lifting device two; 15, clamping ring; 16, oil seal pressing head; 17, limit ring two; 18, motor one; 19, glue adding machine; 20, position sensor; 21, motor two; 22, tightening sleeve; 23, translation device three; 24, quantitative valve; 25, mounting hole. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0025] It should be noted that if the embodiment of the utility model has directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.
[0026] In the utility model, unless otherwise specifically provided and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0028] The utility model provides a trapezoidal screw rod assembly assembling device, the trapezoidal screw rod assembly assembling device can accurately guarantee the pressure -in force and the pressure -in depth when assembling oil seal and bearing, accurately guarantee the tightening force and the tightening angle of nut, and the amount of grease and the amount of glue of screw rod in the assembling process, the assembling quality is high, the trapezoidal screw rod assembly of assembling is good, reliability is high, the assembling speed is fast, and the efficiency is high, both guarantee the trapezoidal screw rod assembly product higher assembling efficiency and the qualified rate, and greatly save manpower cost and time cost.
[0029] Specifically, in the embodiment of the utility model, Figures 1-3As shown, the trapezoidal screw assembly device comprises a mounting frame, a translation device one 4, a lubricating device, a lifting device one 5 and a pressing device 3 arranged on the mounting frame. Specifically, the mounting frame comprises a bottom plate 1 and a top plate 2 arranged above the bottom plate 1. The top plate 2 and the bottom plate 1 are fixedly connected by a plurality of vertical columns 8. A mounting plate 11 is arranged between the top plate 2 and the bottom plate 1. The mounting plate 11 is slidably connected to the vertical columns 8. A linear bearing 10 is vertically slidably arranged on the vertical columns 8. The linear bearing 10 is fixedly connected to the mounting plate 11. A limiting ring one 9 is fixedly arranged on the vertical columns 8. The limiting ring one 9 is located below the linear bearing 10. In this way, the limiting ring one 9 prevents the mounting plate 11 from sliding downward too much, thereby affecting the assembly safety of the trapezoidal screw assembly.
[0030] In this embodiment, as shown in the figure, Figures 1-3 A screw rod seat cylinder 6 and a bearing seat 7 are arranged on the translation device one 4. The screw rod seat cylinder 6 and the bearing seat 7 are horizontally moved by the translation device one 4. Preferably, the translation device one 4 is horizontally fixedly arranged on the bottom plate 1. The screw rod seat cylinder 6 is used for vertically placing a screw rod. The bearing seat 7 is used for placing a four-point bearing. The central axis of the four-point bearing placed on the bearing seat 7 is vertical.
[0031] In this embodiment, as shown in the figure, Figures 1-3 The pressing device 3 is arranged on the top plate 2. The lower end of the pressing device 3 is connected to the mounting plate 11. An oil seal pressing head 16 and a bearing pressing head 13 are arranged on the mounting plate 11. The screw rod seat cylinder 6 can be moved to the position directly below the oil seal pressing head 16 by the translation device one 4. In this way, the oil seal can be installed on the screw rod vertically placed on the screw rod seat cylinder 6 by the descending of the oil seal pressing head 16. Specifically, as shown in the figure, Figure 2 The lower surface of the oil seal pressing head 16 is inwardly recessed to form an installation hole 25 for accommodating the oil seal. The outer diameter of the oil seal is slightly larger than the hole diameter of the installation hole 25, so that the oil seal can be clamped in the installation hole 25 and coaxially arranged with the installation hole 25. A limiting ring two 17 is arranged on the hole wall of the installation hole 25. The limiting ring two 17 blocks the excessive axial movement of the oil seal in the installation hole 25, thereby affecting the subsequent assembly of the oil seal on the screw rod. When assembling the oil seal, the oil seal is first installed in the installation hole 25. Then, the translation device one 4 is controlled to move the screw rod seat cylinder 6 to the position directly below the oil seal pressing head 16. Then, the oil seal is tightly clamped on the screw rod vertically placed on the screw rod seat cylinder 6 by the descending of the oil seal pressing head 16 driven by the pressing device 3. The pressing depth and the pressing force of the oil seal are accurately controlled by the pressing device 3. Therefore, the trapezoidal screw assembly device can accurately ensure the pressing force and the pressing depth during the assembly of the oil seal, has high assembly quality, and the assembled trapezoidal screw assembly has good stability and high reliability, fast assembly speed and high efficiency. The trapezoidal screw assembly device not only ensures high assembly efficiency and qualified rate of the trapezoidal screw assembly product, but also greatly saves the labor cost and time cost.
[0032] In the embodiment, as shown in Figures 1-3 The lower part of the bearing press head 13 is coaxially provided with a clamping ring 15, and the side surface of the bearing press head 13 is fixedly provided with a lifting device two 14 connected with the clamping ring 15, which drives the clamping ring 15 to move up and down relative to the bearing press head 13. The clamping ring 15 is an open ring. The bearing seat 7 is driven by the translation device one 4 to move to the position directly below the bearing press head 13. In this way, the four-point bearing on the bearing seat 7 can be clamped by the clamping ring 15 when the bearing press head 13 is lowered. The design of the clamping ring 15 as an open ring allows the clamping ring 15 to tightly fit on the four-point bearing on the bearing seat 7. Then the bearing press head 13 is raised to take away the four-point bearing on the bearing seat 7. Then the translation device one 4 drives the lead screw seat cylinder 6 to move to the position directly below the clamping ring 15. Then the bearing press head 13 is controlled to be lowered to make the four-point bearing in the clamping ring 15 installed on the lead screw of the lead screw seat cylinder 6. Then the lifting device two 14 is controlled to drive the clamping ring 15 to move up relative to the bearing press head 13 to block the four-point bearing at the lower end of the bearing press head 13 until the four-point bearing is separated from the clamping ring 15. Finally, the lower pressing device 3 is controlled to press the four-point bearing to the set pressing depth. The pressing depth and the pressing force of the four-point bearing are accurately controlled by the lower pressing device 3. Therefore, the trapezoidal lead screw assembly assembling device can accurately ensure the pressing force and the pressing depth during bearing assembly, has high assembly quality, and the assembled trapezoidal lead screw assembly has good stability and high reliability, fast assembly speed and high efficiency. The trapezoidal lead screw assembly product has high assembly efficiency and high qualification rate, and greatly saves labor cost and time cost.
[0033] Further, as shown in Figure 2 The mounting plate 11 is provided with a translation device two 12, and the oil seal press head 16 and the bearing press head 13 are mounted on the translation device two 12. The translation direction of the translation device two 12 is the same as that of the translation device one 4. In this way, the trouble of controlling the translation device one 4 to drive the lead screw seat cylinder 6 to move to the position directly below the clamping ring 15 is avoided, which is beneficial to improve the assembly efficiency. Figures 1-3 As can be seen from the drawings, the lead screw seat cylinder 6 needs to move right after the oil seal assembly is completed to reach the position directly below the clamping ring 15, and the lead screw seat cylinder 6 needs to move left after the four-point bearing assembly is completed to add glue and tighten the nut. It can be seen that the lead screw seat cylinder 6 moves right and then left, which is time-consuming. After the translation device two 12 is provided, the position of the lead screw seat cylinder 6 is fixed after the oil seal assembly is completed, and the translation device two 12 is controlled to drive the clamping ring 15 to move left to the position directly above the lead screw seat cylinder 6, and then the four-point bearing assembly is completed. The lead screw seat cylinder 6 directly moves left to add glue and tighten the nut after the four-point bearing assembly is completed. Compared with not providing the translation device two 12, the lead screw seat cylinder 6 does not need to move back and forth, which effectively saves time and improves assembly efficiency.
[0034] In the embodiment, as shown in Figures 1-3 The grease fitting device includes a translation device three 23 and a quantitative valve 24 connected to the translation device three 23, the translation device three 23 drives the quantitative valve 24 to translate close to or away from the lead screw on the lead screw seat cylinder 6, when the quantitative valve 24 is close to the lead screw, the quantitative valve 24 controls the grease fitting of the lead screw assembly, after the completion of the filling, the quantitative valve 24 is controlled to return, and the grease fitting amount is accurately controlled by the quantitative valve 24, so that the grease fitting amount of the lead screw in the assembly process can be accurately ensured, the assembly quality is high, the assembled trapezoidal lead screw assembly has good stability and high reliability, the assembly speed is fast and the efficiency is high, the assembly efficiency and qualified rate of the trapezoidal lead screw assembly product are ensured, and the labor cost and time cost are greatly saved.
[0035] In the embodiment, as shown in Figures 1-3 The motor includes a motor one 18 and a motor two 21, the motor one 18 is vertically arranged, and a glue adding machine 19 is connected to the lower end of the motor one 18, the glue adding machine 19 rotates around the axis of the motor one 18 under the driving of the motor one 18, after the oil seal assembly, the grease fitting and the bearing assembly of the lead screw assembly on the lead screw seat cylinder 6 are completed in turn, the translation device one 4 drives the lead screw seat cylinder 6 to move to the left to the position where the lead screw assembly is coaxial with the motor one 18, in this way, the glue adding machine 19 can rotate around the lead screw under the driving of the motor one 18 to add glue around the lead screw thread, so that the glue adding amount is accurately controlled by the glue adding machine 19, the glue adding amount is accurately controlled by the glue adding machine 19, the assembly quality is high, the assembled trapezoidal lead screw assembly has good stability and high reliability, the assembly speed is fast and the efficiency is high, the assembly efficiency and qualified rate of the trapezoidal lead screw assembly product are ensured, and the labor cost and time cost are greatly saved.
[0036] In the embodiment, as shown in Figures 1-3 The motor two 21 is vertically arranged, and a tightening sleeve 22 is connected to the lower end of the motor two 21, after the completion of the glue adding, the translation device one 4 drives the lead screw seat cylinder 6 to continue to move to the left to the lower side of the tightening sleeve 22, until the nut on the lead screw assembly is coaxial with the tightening sleeve 22, then the lifting device one 5 drives the tightening sleeve 22 to descend and cover the nut, and then the motor two 21 drives the tightening sleeve 22 to rotate to tighten the nut, the tightening torque and the tightening angle are accurately controlled by the motor two 21, so that the assembly quality is high, the assembled trapezoidal lead screw assembly has good stability and high reliability, the assembly speed is fast and the efficiency is high, the assembly efficiency and qualified rate of the trapezoidal lead screw assembly product are ensured, and the labor cost and time cost are greatly saved.
[0037] In the embodiment, as shown in Figures 1-3As shown, the lower end of the motor 18 is also connected with a position sensor 20, which is used to detect the ground clearance of itself, and facilitate the accurate control of the height position of the lifting device 5, the tightening sleeve 22 and the glue adding machine 19.
[0038] In the embodiment, the screw rod base tool can detect whether the screw rod is placed reversely, and air detection is used for error prevention.
[0039] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the present application, and the contents of the present application specification and drawings are included in the patent protection range of the present application.
Claims
1. A trapezoidal lead screw assembly assembly apparatus, characterized by, The device comprises a mounting frame, a translation device I, a greasing tool, a lifting device I and a pressing device arranged on the mounting frame, a screw rod seat cylinder and a bearing seat are arranged on the translation device I, an oil seal pressing head and a bearing pressing head are connected to the lower end of the pressing device, the screw rod seat cylinder is movable to the position right below the oil seal pressing head under the driving of the translation device I, the bearing seat is movable to the position right below the bearing pressing head under the driving of the translation device I, the lifting device I is connected with a motor, the motor is drivingly connected with a tightening sleeve and a glue adding machine, the screw rod seat cylinder is movable to the position below the tightening sleeve and the glue adding machine under the driving of the translation device I.
2. A trapezoidal screw assembly assembly device as claimed in claim 1, wherein, The mounting frame comprises a bottom plate and a top plate arranged above the bottom plate, the top plate and the bottom plate are fixedly connected through a plurality of columns, an installation plate is arranged between the top plate and the bottom plate, the installation plate is slidably connected with the columns in the up-down direction; The pressing device is arranged on the top plate, the oil seal pressing head and the bearing pressing head are arranged on the installation plate, and the translation device I is arranged on the bottom plate.
3. A trapezoidal screw assembly assembly apparatus as claimed in claim 2, wherein, A linear bearing is vertically slidably arranged on the column, the linear bearing is fixedly connected with the installation plate, a limiting ring I is fixedly arranged on the column, and the limiting ring I is located below the linear bearing.
4. A trapezoidal screw assembly assembly device as claimed in claim 2, wherein, A translation device II is arranged on the installation plate, the oil seal pressing head and the bearing pressing head are arranged on the translation device II, and the translation direction of the translation device II is the same as that of the translation device I.
5. A trapezoidal screw assembly assembly device as claimed in claim 1, wherein, A clamping ring is coaxially arranged below the bearing pressing head, a lifting device II is fixedly arranged on the side surface of the bearing pressing head, and the lifting device II is connected with the clamping ring.
6. A trapezoidal screw assembly assembly device as claimed in claim 5, wherein, The clamping ring is an open ring.
7. A trapezoidal screw assembly assembly device as claimed in claim 1, wherein, The lower surface of the oil seal pressing head is inwardly recessed to form an installation hole for accommodating an oil seal, and a limiting ring II is arranged on the hole wall of the installation hole.
8. A trapezoidal screw assembly assembly device as claimed in claim 1, wherein, The motor comprises a motor I and a motor II, the motor I is vertically arranged, the glue adding machine is connected to the lower end of the motor I, the screw rod seat cylinder is movable to the position coaxial with the motor I under the driving of the translation device I, and the glue adding machine is rotatable around the screw rod seat cylinder coaxial with the motor I under the driving of the motor I; The motor II is vertically arranged, and the tightening sleeve is connected to the lower end of the motor II.
9. A trapezoidal screw assembly assembly device as claimed in claim 8, wherein, The lower end of the motor I is further connected with a position sensor, and the position sensor is used for detecting the ground clearance of the motor I.
10. A trapezoidal screw assembly assembly device as claimed in claim 1, wherein, The greasing tool comprises a translation device III and a quantitative valve connected with the translation device III.