Double-sided four-column servo precise positioning mechanism

Abstract

The invention belongs to the technical field of product positioning of conveying equipment, and discloses a double-sided four-column servo precise positioning mechanism which comprises a driving part mounting plate, driven part mounting plates are arranged at the two ends of the driving part mounting plate correspondingly, and each driven part mounting plate is slidably connected with a positioning assembly. Each group of positioning assembly comprises two mounting seats which are arranged at an interval, at least one positioning column is fixedly mounted on each mounting seat, and a driving assembly for driving the two mounting seats in each group of positioning assembly to synchronously move in the directions of getting close to each other or getting away from each other is mounted on the driving part mounting plate; according to the invention, sharing of products with different specifications in the same series can be ensured, and rapid switching is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of product positioning of conveying equipment, and in particular, relates to a double-sided four-column servo precision positioning mechanism, which can position and fix products of different specifications in a series. Background Art

[0002] With the rapid development of the automobile industry, people have higher and higher requirements for automobiles, and new automobile products are constantly updated; higher requirements are also put forward in automobile manufacturing. The previous single-model production line can hardly meet the needs of automobile manufacturing. Therefore, the random mixed-line production of multiple platforms and multiple models has become an urgent need for more and more automobile manufacturers.

[0003] In the automobile manufacturing industry, the market changes rapidly, car models are updated quickly, and the degree of car model diversification increases. When producing cars on the automobile production line, the car body needs to be fixed and positioned at different automobile production stations. However, the existing car body fixing and positioning mechanism is designed according to the car body to be produced. Therefore, one fixing and positioning mechanism can only meet the positioning of one car body. A single fixing and positioning mechanism cannot meet the production needs. The positioning mechanism needs to be compatible with multiple car models and can be quickly switched to meet the flexible production shared by multiple car models. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a double-sided four-column servo precision positioning mechanism, which is used for a certain workstation of the conveyor line to position the two parallel surfaces of the product. The servo motor is driven to change the positions of the four positioning columns to ensure the sharing of products of different specifications in the same series and realize rapid switching.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A double-sided four-column servo precision positioning mechanism comprises a driving part mounting plate, and driven part mounting plates are respectively arranged at both ends of the driving part mounting plate, and a group of positioning components are slidably connected to each driven part mounting plate, and each group of positioning components comprises two mounting seats arranged at intervals, and each mounting seat is respectively fixedly mounted with at least one positioning column, and a driving component for driving the two mounting seats in each group of positioning components to move synchronously in a direction of approaching or moving away from each other is installed on the driving part mounting plate.

[0006] The following is a further optimization of the above technical solution by the present invention: Connecting plates are arranged between the two ends of the driving part mounting plate and the corresponding driven part mounting plates, and the connecting plates are detachably fixedly connected to the corresponding driving part mounting plates and the driven part mounting plates.

[0007] Further optimization: a driven part sliding assembly is arranged between the two mounting seats in each group of positioning assemblies and the corresponding driven part mounting plates, and the mounting seats are slidably mounted on the corresponding driven part mounting plates through the driven part sliding assembly.

[0008] Further optimization: the driven part sliding assembly includes a driven part slide rail, which is fixedly mounted on the driven part mounting plate, and the driven part slide rail is arranged along the sliding direction of the mounting seat; a plurality of driven part sliders are slidably connected to the driven part slide rail, and the number of the driven part sliders matches the number of the mounting seats, and the mounting seats are respectively fixedly mounted on the driven part sliders.

[0009] Further optimization: a guide column is also installed on one side of the positioning column on the mounting seat, and the guide column and the positioning column are arranged in parallel.

[0010] Further optimization: the driving assembly includes a driving rod slidably mounted on the driving part mounting plate, the sliding direction of the driving rod is perpendicular to the sliding direction of the two mounting seats in each group of positioning assemblies, and two transmission rods are hinged on the two ends of the driving rod, and the end of the transmission rod away from the driving rod is movably connected to the corresponding mounting seat.

[0011] Further optimization: a driving part sliding assembly is arranged between the driving rod and the driving part mounting plate, and the driving rod is slidably mounted on the driving part mounting plate through the driving part sliding assembly.

[0012] Further optimization: the driving part sliding assembly includes a driving part slide rail, which is fixedly mounted on the driving part mounting plate, and the axis of the driving part slide rail and the axis of the driven part slide rail are arranged vertically; a plurality of driving part sliders are slidably connected to the driving part slide rail, and the driving part sliders are fixedly connected to the driving rod.

[0013] Further optimization: a mobile power output assembly for driving the driving rod to move is fixedly installed on the driving part mounting plate; the power output assembly includes a servo motor fixedly installed on the driving part mounting plate, and a gear is fixedly installed on the power output end of the servo motor; a rack is installed on the driving rod, the rack is arranged along the moving direction of the driving rod, and the gear and the rack are meshed with each other through the teeth.

[0014] Further optimization: a pin is arranged between the driving rod and the transmission rod, and the transmission rod is hinged to the driving rod through the pin; a self-lubricating rod end joint bearing is arranged at one end of the transmission rod away from the driving rod, and the self-lubricating rod end joint bearing is connected to the corresponding mounting seat.

[0015] The present invention adopts the above technical scheme, which is ingenious in conception and reasonable in structure. Through the drive of the servo motor, the position adjustment of the four positioning columns is accurate, and the purpose of precise positioning is achieved. By increasing or decreasing the thickness of the adjustment gasket, the meshing clearance between the gear and the rack is guaranteed, thereby improving the precise transmission. The self-lubricating rod end joint bearing mounting shaft can rotate around the center line at a certain angle to compensate for the mounting error between the driving rod and the mounting seat. The connecting plate arranged between the driving part mounting plate and the driven part mounting plate ensures the mounting accuracy between the driving part mounting plate and the driven part mounting plate; a driving part leveling foot is arranged below the driving part mounting plate; a driven part leveling foot is arranged below the driven part mounting plate, and the flatness of the whole set of mechanisms is guaranteed by the driving part leveling foot and the driven part leveling foot, and the bearing capacity of the bottom surface can be enhanced by the foot plate to ensure the stability of the mechanism. The overall structure of the double-sided four-column servo precision positioning mechanism is simple and easy to implement, and can be compatible with the positioning of multiple products, saving costs and meeting the flexible production shared by multiple models.

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure when the embodiment of the present invention is adjusted to the maximum positioning state; Figure 2 It is a schematic diagram of the overall structure when the embodiment of the present invention is adjusted to the minimum positioning state; Figure 3 It is a partial schematic diagram of a group of positioning components in an embodiment of the present invention.

[0018] In the figure: 1-anchor plate; 2-driving part leveling foot; 3-driving part mounting plate; 4-servo motor; 5-adjusting gasket; 6-gear; 7-rack; 8-driving part slide rail; 9-driving part slider; 10-driving rod; 11-driven part leveling foot; 12-driven part mounting plate; 13-transmission rod; 14-pin shaft; 15-self-lubricating rod end joint bearing; 16-driven part slide rail; 17-driven part slider; 18-mounting seat; 19-positioning column; 20-guide column; 21-connecting plate. DETAILED DESCRIPTION

[0019] like Figure 1-3As shown: a double-sided four-column servo precision positioning mechanism, including a driving part mounting plate 3, and driven part mounting plates 12 are respectively arranged at both ends of the driving part mounting plate 3, and a group of positioning components are slidably connected to each driven part mounting plate 12, and each group of positioning components includes two mounting seats 18 arranged at intervals, and each mounting seat 18 is fixedly mounted with at least one positioning column 19, and a driving component for driving the two mounting seats 18 in each group of positioning components to move synchronously in a direction of approaching or moving away from each other is installed on the driving part mounting plate 3.

[0020] A connecting plate 21 is provided between the two ends of the driving part mounting plate 3 and the corresponding driven part mounting plate 12. The two ends of the driving part mounting plate 3 are fixedly connected to the corresponding driven part mounting plate 12 through the connecting plate 21, thereby ensuring the installation accuracy between the driving part mounting plate 3 and the driven part mounting plate 12.

[0021] In this embodiment, the connecting plate 21 is detachably fixed to the corresponding driving part mounting plate 3 and the driven part mounting plate 12 by bolt fasteners, which facilitates assembly and installation and can also improve the installation accuracy between the driving part mounting plate 3 and the driven part mounting plate 12.

[0022] A driven part sliding assembly is arranged between the two mounting seats 18 in each group of positioning assemblies and the corresponding driven part mounting plate 12 , and the mounting seats 18 are slidably mounted on the corresponding driven part mounting plate 12 through the driven part sliding assembly.

[0023] The driven part sliding assembly includes a driven part slide rail 16 , which is fixedly mounted on the driven part mounting plate 12 , and is arranged along the sliding direction of the mounting seat 18 .

[0024] A plurality of driven part sliders 17 are slidably connected to the driven part slide rail 16 . The number of the driven part sliders 17 matches the number of the mounting seats 18 . The mounting seats 18 are fixedly mounted on the driven part sliders 17 , respectively.

[0025] With such a design, the mounting seat 18 is slidably installed on the driven part mounting plate 12 through the cooperation of the driven part slider 17 and the driven part slide rail 16, which is convenient for assembly and installation, and the driven part slider 17 sliding on the driven part slide rail 16 can drive the mounting seat 18 to move, thereby improving the stability of the mounting seat 18 when moving and improving the use effect.

[0026] In this embodiment, a guide column 20 is further installed on one side of the positioning column 19 on the mounting seat 18 , and the guide column 20 and the positioning column 19 are arranged in parallel.

[0027] The driving assembly includes a driving rod 10 slidably mounted on the driving part mounting plate 3, the sliding direction of the driving rod 10 is perpendicular to the sliding direction of the two mounting seats 18 in each group of positioning assemblies, and two transmission rods 13 are hinged on the two ends of the driving rod 10, and the end of the transmission rod 13 away from the driving rod 10 is movably connected to the corresponding mounting seat 18.

[0028] In this embodiment, a driving part sliding assembly is provided between the driving rod 10 and the driving part mounting plate 3, and the driving rod 10 is slidably mounted on the driving part mounting plate 3 through the driving part sliding assembly.

[0029] The driving part sliding assembly includes a driving part slide rail 8, and the driving part slide rail 8 is fixedly mounted on the driving part mounting plate 3, and the axis of the driving part slide rail 8 is vertically arranged to the axis of the driven part slide rail 16.

[0030] A plurality of driving part sliders 9 are slidably connected to the driving part slide rail 8 . The plurality of driving part sliders 9 are arranged at intervals, and the driving part sliders 9 are fixedly connected to the driving rod 10 .

[0031] The driving rod 10 is slidably installed on the driving part mounting plate 3 through the cooperation of the driving part slider 9 and the driving part slide rail 8, which is convenient for assembly and installation. The driving part slider 9 slides on the driving part slide rail 8 to drive the driving rod 10 to move, thereby improving the stability of the driving rod 10 when moving and improving the use effect.

[0032] The driving rod 10 can move the two mounting seats 18 in each positioning assembly by cooperating with the transmission rod 13, which is convenient to use.

[0033] A moving power output assembly for driving the driving rod 10 to move is fixedly mounted on the driving part mounting plate 3 .

[0034] With this design, the power output assembly is used to drive the drive rod 10 to move. The movement of the drive rod 10 can drive the two mounting seats 18 in each group of positioning assemblies to move through the cooperation of the transmission rod 13. At this time, the two mounting seats 18 in each group of positioning assemblies move toward or away from each other, which is convenient for use.

[0035] The power output assembly comprises a servo motor 4 fixedly mounted on a driving part mounting plate 3 , and a gear 6 is fixedly mounted on a power output end of the servo motor 4 .

[0036] A rack 7 is mounted on the driving rod 10 , and the rack 7 is arranged along the moving direction of the driving rod 10 . The gear 6 and the rack 7 are meshed with each other through the teeth.

[0037] The servo motor 4 is used to drive the gear 6 to rotate, and the gear 6 is meshed with the rack 7. The rotation of the gear 6 drives the driving rod 10 to move through the rack 7. At this time, the cooperation between the driving part slider 9 and the driving part slide rail 8 improves the stability of the driving rod 10 during movement.

[0038] An adjusting gasket 5 is arranged between the servo motor 4 and the driving part mounting plate 3. By increasing or decreasing the thickness of the adjusting gasket 5, the meshing clearance between the gear 6 and the rack 7 can be adjusted, thereby improving the transmission accuracy.

[0039] A pin shaft 14 is disposed between the driving rod 10 and the transmission rod 13 , and the transmission rod 13 is hinged to the driving rod 10 via the pin shaft 14 .

[0040] A self-lubricating rod end joint bearing 15 is respectively disposed at one end of the transmission rod 13 away from the driving rod 10 , and the self-lubricating rod end joint bearing 15 is connected to a corresponding mounting seat 18 .

[0041] In this embodiment, the self-lubricating rod end joint bearing 15 is a prior art. The self-lubricating rod end joint bearing 15 can realize a movable connection between the transmission rod 13 and the corresponding mounting seat 18, and can also compensate for the installation error between the drive rod 10 and the mounting seat 18, thereby improving the transmission accuracy.

[0042] A plurality of driving part leveling feet 2 are arranged below the driving part mounting plate 3 . The plurality of driving part leveling feet 2 are arranged at intervals. The plurality of driving part leveling feet 2 are used together to adjust the flatness of the driving part mounting plate 3 .

[0043] A plurality of driven part leveling feet 11 are arranged below the driven part mounting plate 12 . The plurality of driven part leveling feet 11 are arranged at intervals. The plurality of driven part leveling feet 11 are used together to adjust the flatness of the driven part mounting plate 12 .

[0044] In this embodiment, a ground plate 1 is provided below the driving part leveling foot 2 and the driven part leveling foot 11, and the ground plate 1 is used to enhance the bearing capacity of the ground.

[0045] When in use, the four positioning columns 19 need to be adjusted to the positioning position required by the product, and the servo motor 4 drives the gear 6 to rotate, and through the engagement of the gear 6 and the rack 7, the driving rod 10 is driven to move horizontally along the driving part slide rail 8. At this time, the driving rod 10 drives the mounting seat 18 to move along the driven part slide rail 16 through the transmission rod 13, thereby adjusting the distance between the two positioning columns 19 in each group of positioning components, and adjusting the positioning position of the positioning column 19.

[0046] During the working process, the product moves from the previous station to the current station, first contacts the guide column 20, and through the guiding effect of the guide column 20, smoothly contacts the positioning column 19, thereby reaching the positioning state.

[0047] When the work is completed, the servo motor 4 runs in the reverse direction to drive the gear 6 to rotate in the reverse direction. Through the meshing of the gear 6 and the rack 7, the driving rod 10 is driven to move horizontally along the driving part slide rail 8. The driving rod 10 drives the mounting seat 18 to move inward along the driven part slide rail 16 through the transmission rod 13. At this time, a certain gap is generated between the four positioning columns 19 and the positioned product, and the product runs to the next workstation.

[0048] For those skilled in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A double-sided four-column servo precision positioning mechanism, characterized in that: The invention comprises a driving part mounting plate (3), driven part mounting plates (12) are respectively arranged at both ends of the driving part mounting plate (3), each driven part mounting plate (12) is slidably connected to a group of positioning components, each group of positioning components comprises two mounting seats (18) arranged at intervals, each mounting seat (18) is respectively fixedly mounted with at least one positioning column (19), and a driving component for driving the two mounting seats (18) in each group of positioning components to synchronously move in a direction of approaching or moving away from each other is mounted on the driving part mounting plate (3).

2. A double-sided four-column servo precise positioning mechanism according to claim 1, characterized in that: Connecting plates (21) are provided between the two ends of the driving part mounting plate (3) and the corresponding driven part mounting plate (12); the connecting plates (21) are detachably fixedly connected to the corresponding driving part mounting plate (3) and the driven part mounting plate (12).

3. A double-sided four-column servo precise positioning mechanism according to claim 2, characterized in that: A driven part sliding assembly is provided between the two mounting seats (18) in each group of positioning assemblies and the corresponding driven part mounting plate (12), and the mounting seats (18) are slidably mounted on the corresponding driven part mounting plate (12) via the driven part sliding assembly.

4. A double-sided four-column servo precise positioning mechanism according to claim 3, characterized in that: The driven part sliding assembly comprises a driven part slide rail (16), the driven part slide rail (16) being fixedly mounted on the driven part mounting plate (12), and the driven part slide rail (16) being arranged along the sliding direction of the mounting seat (18); a plurality of driven part sliders (17) are slidably connected to the driven part slide rail (16), the number of the driven part sliders (17) matches the number of the mounting seats (18), and the mounting seats (18) are respectively fixedly mounted on the driven part sliders (17).

5. A double-sided four-column servo precise positioning mechanism according to claim 4, characterized in that: A guide column (20) is also installed on the mounting seat (18) on one side of the positioning column (19), and the guide column (20) and the positioning column (19) are arranged in parallel.

6. A double-sided four-column servo precise positioning mechanism according to claim 5, characterized in that: The driving assembly comprises a driving rod (10) slidably mounted on a driving part mounting plate (3), the sliding direction of the driving rod (10) being perpendicular to the sliding direction of two mounting seats (18) in each group of positioning assemblies, two transmission rods (13) being hingedly connected to the two ends of the driving rod (10), and one end of the transmission rod (13) away from the driving rod (10) being movably connected to the corresponding mounting seat (18).

7. A double-sided four-column servo precise positioning mechanism according to claim 6, characterized in that: A driving part sliding assembly is provided between the driving rod (10) and the driving part mounting plate (3), and the driving rod (10) is slidably mounted on the driving part mounting plate (3) via the driving part sliding assembly.

8. The double-sided four-column servo precise positioning mechanism according to claim 7, characterized in that: The driving part sliding assembly comprises a driving part slide rail (8), the driving part slide rail (8) is fixedly mounted on the driving part mounting plate (3), and the axis of the driving part slide rail (8) and the axis of the driven part slide rail (16) are arranged vertically; a plurality of driving part sliders (9) are slidably connected to the driving part slide rail (8), and the driving part sliders (9) are fixedly connected to the driving rod (10).

9. The double-sided four-column servo precise positioning mechanism according to claim 8, characterized in that: A mobile power output assembly for driving the driving rod (10) to move is fixedly mounted on the driving part mounting plate (3); the power output assembly comprises a servo motor (4) fixedly mounted on the driving part mounting plate (3); a gear (6) is fixedly mounted on the power output end of the servo motor (4); a rack (7) is mounted on the driving rod (10); the rack (7) is arranged along the moving direction of the driving rod (10), and the gear (6) and the rack (7) are meshed with each other through a tooth portion.

10. A double-sided four-column servo precise positioning mechanism according to claim 9, characterized in that: A pin shaft (14) is arranged between the driving rod (10) and the transmission rod (13), and the transmission rod (13) is hinged to the driving rod (10) via the pin shaft (14); a self-lubricating rod end joint bearing (15) is respectively arranged at one end of the transmission rod (13) away from the driving rod (10), and the self-lubricating rod end joint bearing (15) is connected to a corresponding mounting seat (18).

Images