Modularized cylindrical product tool with mistake-proof holding function

Abstract

The invention relates to a die support assembly block cylindrical product tool with a mistake-proof maintaining function. The die support assembly block cylindrical product tool comprises a rack (12), a foundation plate (4), an arc guide rail (5), a pressing assembly (6) and a supporting assembly (9). The pressing assembly (6) and the supporting assembly (9) are installed on the inner wall of the foundation plate (4). The lower concave surface of the rack (12) is connected with a linear guide rail sliding block (13), and the linear guide rail sliding block (13) slides on a track to enable the rack (12) to be positioned in the Y direction and the Z direction; an arc guide rail (5) is installed on one side of the annular foundation plate (4), a plurality of arc guide rail sliding blocks (36) are arranged on the semi-annular portion of the upper portion of the machine frame (12), and the arc guide rail (5) is installed in the arc guide rail sliding blocks (36). Under the condition that the arc guide rail is prevented from derailing, it is guaranteed that a large amount of time is saved in the installation process. And the safety of the production process and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the field of assembly, discloses a cylindrical product tooling with an error-proof holding function, and particularly relates to safety assurance of the product tooling. Background Art

[0002] In my country's aerospace industry, there are a large number of cylindrical product docking and assembly tasks. In this context, new requirements are put forward for the fixing, clamping and posture consistency of cylindrical products. Faced with multiple functional requirements in complex assembly scenarios, traditional tooling can usually only realize single functions one-sidedly, and it is difficult to reach a consensus on the ease of use and functional integration of tooling. Common cylindrical product tooling uses basic support structures such as V-shaped blocks and U-shaped grooves to achieve simple support functions; cylindrical and V-shaped rollers are used to achieve product rolling functions, but the motion accuracy is limited; posture adjustment mechanisms are added to adjust the posture consistency of cylindrical products, but redundant structures and operation time are increased; a discontinuous split design is used, and opening and closing requires multiple sets of bolts to cooperate, which is cumbersome to operate.

[0003] Invention patent content

[0004] The purpose of the present invention is to design a modular cylindrical product tooling with error-proofing holding function in view of the above-mentioned deficiencies of the prior art.

[0005] A mold support assembly block cylindrical product tooling with an error-proof holding function includes a frame 12, a base plate 4, an arc guide rail 5, a clamping assembly 6 and a support assembly 9; the clamping assembly 6 and the support assembly 9 are installed on the inner wall of the base plate 4; the lower concave surface of the frame 12 is connected with a linear guide slider 13, and the linear guide slider 13 slides on the track to position the frame 12 in the Y and Z directions; an arc guide rail 5 is installed on one side of the annular base plate 4, and a plurality of arc guide sliders 36 are provided on the semi-circular portion of the upper part of the frame 12, and the arc guide rail 5 is installed in the plurality of arc guide sliders 36, and the arc guide rail 5 can drive the annular base plate 4 in the plurality of arc guide sliders 36 Sliding; a stop pin 11 is provided at one end of the upper part of the frame 12; it is characterized in that it also includes an anti-error holding mechanism 10, the anti-error holding mechanism 10 includes an anti-error limit boss 32 and an anti-error holding device, there are multiple anti-error limit bosses 32, and they are arranged on the ring frame 12 on the same side as the arc guide rail slider 36, and are arranged alternately, the anti-error limit boss 32 is processed integrally with the frame; the anti-error limit boss 32 has a clearance fit with the arc guide rail during normal use; the anti-error holding device specifically includes a retaining frame 33 and a limit block 34, the retaining frame 33 is installed on one end of the frame 12 through an oil-free bushing, and is on the same side as the upper and lower base plate rotating shafts 26. The multiple pairs of limit blocks 34 are installed in pairs on the retaining frame 33 through threads;

[0006] Under normal use, the anti-error holding device rotates coaxially with the upper and lower base plates, and the anti-error holding device does not work; before the holding ring is opened, the stop pin 11 is not in the locking position, and the holding ring base plate 4 rotates slightly. At this time, the retaining frame 33 is not consistent with the upper and lower base plate rotation axis 26, and the limit block 34 on the anti-error holding device will interfere with the arc guide rail 5, preventing the holding ring from opening normally.

[0007] The installation distance between each pair of limit blocks 34 on the retaining frame 33 is adjustable. After adjustment, when the set angle between the anti-error retaining device and the rotating axis of the holding ring is less than 10°, the holding ring can still be opened normally, which not only gives the product clamped by the holding ring a certain angular adjustment margin, but also avoids the occurrence of arc guide rail derailment failure.

[0008] There are four anti-misalignment limiting bosses, which are evenly distributed and arranged on the same side of the ring frame 12 as the arc guide rail slider 36.

[0009] The purpose of the present invention is achieved in this way: a modular cylindrical product tooling with an anti-error holding function, a workbench, a linear guide rail, and a modular cylindrical product tooling (i.e., an embrace ring). It is further explained that the workbench adopts an optical platform design for the mounting surface to provide sufficient mounting accuracy for the guide rail. The linear guide rail is installed on the optical plane of the workbench, and the guide rail is installed and debugged by the lateral positioning grooves and wedge blocks of the workbench to ensure the straightness and flatness of the guide rail. The embrace ring is composed of a frame, a base plate, an arc guide rail, an anti-error holding device, and a functional component. It is further explained that the base plate is the central structure of the embrace ring, and the arc guide rail and the functional component are installed on the base plate. The basic positioning of the guide rail and the functional component is achieved with the help of the positioning reference surface, and is ultimately reflected in the Z, Y, pitch, and yaw posture control of the cylindrical product. The frame serves to connect the base plate with the linear guide slider, and provides the product with stable X-direction motion capability with the help of the linear guide; the arc guide is the product rotation motion component, and through the base plate positioning structure and installation, it can provide the product with high-precision smooth rolling motion; the error-proofing holding device is a fool-proof design of the holding ring, which is installed on the frame. Considering the risk of derailment and damage of the arc guide caused by the rotation of the upper and lower base plates without closing the holding ring during actual operation, the error-proofing holding device can effectively avoid such risks.

[0010] Beneficial effects of the present invention:

[0011] (1) The present invention solves the problem that the anti-error mechanism needs to be fastened with bolts for a long time and cannot be opened quickly. The anti-error mechanism of the present invention enables the base plate of the present invention to be opened quickly and prevented from being opened incorrectly, thereby solving the risk of derailment and damage of the vertically mounted circular arc guide rail while satisfying the functionality and practicality of the tooling.

[0012] (2) The present invention is simple to operate, easy to use, and has a powerful function of preventing the arc guide rail from derailing, thereby preventing the risk of damage and contributing to safe production.

[0013] (3) The present invention ensures that a large amount of time is saved in the installation process while preventing the arc guide rail from derailing, thereby improving the safety of the production process and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , is a schematic diagram of the state of the present invention applied on a machine tool

[0015] Figure 2 , is a schematic diagram of the overall structure of the present invention;

[0016] Figure 3 , is a detailed exploded view of each part of the present invention;

[0017] Figure 4 , is a schematic diagram of more than 10 installation states of the error-proof holding mechanism of the present invention.

[0018] Among them, 1. holding ring; 2. linear guide; 3. workbench; 4. base plate; 5. arc guide; 6. clamping module; 7. automatic locking pin; 8. rack side top screw; 9. support module; 10. error-proof holding mechanism; 11. stop pin; 12. rack; 13. linear guide slider; 14. arc guide slider mounting bolt; 15. handle; 16 upper base plate; 17 functional component mounting hole; 18 lower base plate; 19. rack mounting bolt; 20. positioning pin hole; 21. spring ball plug; 2 2. Automatic locking pin (locker); 23. Arc guide rail mounting groove; 24. Functional component positioning reference surface; 25. Arc guide rail positioning screw; 26. Upper and lower base plate connecting shaft; 27. Arc guide rail slider clamping screw; 28. Arc guide rail slider positioning wedge; 29. ​​Arc guide rail slider positioning surface; 30. Positioning cylinder; 31. Automatic locking pin (pin); 32. Anti-error limit boss; 33. Anti-error retaining frame; 34. Anti-error limit block; 35. Anti-error retaining device rotary shaft; 36. Arc guide rail slider. DETAILED DESCRIPTION

[0019] To achieve the above object, the technical solution of the present invention is:

[0020] A modular cylindrical product tooling with an error-proof holding function, the specific function of which includes a workbench, a linear guide rail, and a modular cylindrical product tooling (hereinafter referred to as "holding ring").

[0021] The linear guide rail is installed on the workbench plane, and the workbench lateral positioning groove and wedge block are used to install and debug the guide rail to ensure that the straightness of the guide rail meets the requirements. In addition, the guide rail and the platform base are fixed with fastening bolts to ensure the flatness of the guide rail.

[0022] The holding ring is composed of a frame, a holding ring base plate, an arc guide rail, an anti-error holding mechanism, and functional components.

[0023] Further explanation:

[0024] The frame specifically includes a bottom mounting hole, a base positioning hole, a radial stop pin, an arc guide slider and its mounting positioning hole, and an arc guide limit groove. The frame is fixedly mounted on the linear guide slider through the bottom mounting hole, and the Y-axis positioning of the frame and the linear guide slider is completed by the base positioning hole and two pairs of top screws, so as to ensure that when multiple sets of holding rings are used in combination, the product has a reference in the Y direction. At the same time, it is installed on the linear guide through the matching relationship between the slider and the guide rail, providing the product with high-precision and stable X-axis movement capability. The holding ring designed by the present invention adopts an arc guide as the product rolling motion component. Specifically, the arc guide is used as a mover and the slider is used as a stator, wherein the slider is connected to the frame through the mounting hole, and the slider is positioned and installed by the radial top screw and the end face wedge block. In addition, the stop pin is connected to the frame through a threaded hole, and the tip is facing the radial direction of the cylindrical product, which serves the purpose of angular limiting of the holding ring.

[0025] The holding ring base plate specifically includes an upper base plate, a lower base plate, an automatic locking pin, and an arc guide rail. The upper and lower base plates are both semi-arc shaped and are connected on one side through an oil-free bushing to ensure a tight connection and smooth movement. The outer diameter surface of the base plate is used as a limit and locking member installation surface. Further explanation: the positioning pin holes are arranged at intervals of 60° on the outer diameter surfaces of the upper and lower base plates, and cooperate with the stop pins installed on the frame to achieve rolling motion limitation. The automatic locking pin is installed at the connection between the upper and lower base plates to provide a closed self-locking function for the holding ring. An arc guide rail installation groove is processed on one side of the upper and lower base plates, and the outer diameter surface of the groove is used as the arc guide rail installation positioning surface. The other side is arranged with installation threaded holes at intervals of 10° for the installation of various functional components.

[0026] The functional components, specifically including supporting, pressing and measuring modules, can realize the clamping and positioning tasks of cylindrical products of various types and sizes.

[0027] The anti-error holding mechanism specifically includes a frame anti-error limit boss and an anti-error holding device. It is further explained that the frame anti-error limit boss is arranged on the same side of the arc guide slider of the ring frame, and is obtained by integral processing of the frame. The anti-error limit boss is divided into 4 sections, and is a clearance fit with the arc guide rail during normal use. When the ring is opened but the stop pin is not locked, causing the ring to rotate, the anti-error limit boss can prevent the arc guide rail at the opening of the ring (i.e., the connection between the upper and lower base plates) from entering the interior of the frame, thereby avoiding damage to the tooling caused by the derailment of the arc guide rail; when the ring opening rotates to the inside of the frame, the limit boss will prevent the ring from opening abnormally, and when the arc guide slider is prompted, the opening gap is less than 2mm, ensuring that the guide rail safely and stably passes over the slider. The anti-error holding device specifically includes a retaining frame and a limit block. The retaining frame is installed on the retaining frame through an oil-free bushing, and is on the same side as the upper and lower base plate rotation axis. The multiple pairs of limit blocks are installed in pairs on the retaining frame through threads. Under normal use, the anti-error retainer rotates coaxially with the upper and lower base plates, and the anti-error retainer does not work. Before the holding ring is opened, the stop pin is not in the locking position, and the holding ring rotates slightly. At this time, the anti-error retainer and the rotation axis of the upper and lower base plates are not consistent, and the limit blocks on the anti-error retainer will interfere with the arc guide rail, preventing the holding ring from opening normally. Further explanation: The installation distance between each pair of limit blocks on the retainer is adjustable. After adjustment, when there is a certain angle between the anti-error retaining device and the rotating axis of the holding ring (≤10°), the holding ring can still be opened normally, which not only gives the product clamped by the holding ring a certain angular adjustment margin, but also avoids the occurrence of arc guide rail derailment failure.

[0028] The following describes the implementation mode with reference to the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of modular cylindrical tooling application, including a holding ring 1, which is installed on a workbench 3 through the matching relationship between a linear guide slider 13 and a linear guide 2. Multiple sets of holding rings can be used to support and clamp cylindrical products of various forms and sizes.

[0030] Figure 2It is a schematic diagram of the holding ring, including a base plate 4, an arc guide rail 5, an anti-error holding mechanism 10, and various functional components (clamping component 6, support component 9). When the present invention is used, the Y and Z direction positioning of the holding ring frame 12 and the linear guide slider 13 are realized by using the frame side top screw 8 and the frame mounting bolt 19. It is then extended to the cylindrical product to obtain high-precision Y, Z direction and pitch yaw and pitch positioning through the functional components (clamping component 6, support component 9) installed on the base plate 4. At the same time, with the help of the arc guide rail 5 and the linear guide slider 13, the product has stable and smooth X-direction and rolling movement capabilities, which helps the cylindrical product to complete rapid positioning before docking. In addition, the automatic locking pin 7 realizes the closing and locking operation mode of the holding ring, which simplifies the operation; the stop pin 11 cooperates with the limit holes arranged at 60° intervals along the outer diameter of the base plate 5 to provide safe operation and opening and closing positions for the holding ring.

[0031] The error-proofing holder 10 is installed on the frame to ensure the safe and stable operation of the holding ring.

[0032] Figure 3It is an exploded view of the holding ring. In the present invention, the circular arc guide slider 36 serves as the stator of the holding ring moving part. During installation, the outer contour and upper surface of the slider are used as radial and axial references respectively, wherein the outer contour of the slider is installed on the positioning surface 29 of the circular arc guide slider of the frame and is pressed with the top screw 27, while the wedge block 28 limits the lateral movement of the slider; the upper surface of the slider is fitted with the surface of the frame through the circular arc guide slider mounting bolts 14 to complete the installation of the slider. Two sets of 180° circular arc guide rails 5 serve as the movers of the holding ring moving part, which are respectively installed on the upper and lower holding ring base plates 16 / 18, and cooperate with the guide rail sliders at the same time, and drive the cylindrical product cabin to perform high-precision rolling motion with the help of various components. When the circular arc guide rail 5 is installed, the outer diameter of the guide rail and the guide rail mounting groove 23 on the upper and lower base plates 16 / 18 are used as the positioning reference, and the circular arc guide positioning top screw is used to radially press, and the guide rail is axially pressed through the end face threaded hole. The automatic locking pin (locker) and automatic locking pin (pin) of the automatic locking pin 7 are respectively installed on the open ends of the upper / lower holding ring base plate 16 / 18, and the two cooperate to realize the self-locking of the holding ring closure. The positioning pin hole 20 and the positioning cylindrical pin 30 installed on the upper / lower base plate 16 / 18 play a role in axial positioning of the upper / lower base plate and increase stability after the holding ring is closed. The spring ball plug 21 installed on the upper base plate plays a buffering role when the holding ring is closed. The holding ring base plate 16 / 18 is arranged with threaded holes in a 10° division for installing various functional components such as the clamping module 6 and the support module 9. The upper and lower holding ring base plates 16 / 18 connecting shafts 26 are connected by oil-free bushings, which minimize the assembly gap of the upper and lower holding rings on the basis of providing a rotation function and improve the Y-direction accuracy of the holding ring. In addition to this, when the functional components are installed, the inner diameter of the base plate is also used as the positioning reference surface 24. The functional components that are in direct contact with the product surface have a contact surface with the same curvature or surface features as the outer diameter of the product. The positioning method and processing accuracy provide good interchangeability, which ensures the consistency of product posture when multiple quantities and types of holding rings are used together.

[0033] Figure 4 The figure is a schematic diagram of the anti-error holding design of the holding ring. According to the two failure modes of the holding ring identified in the trial operation stage, the anti-error holding design specifically includes the frame anti-error limit boss 32 and the anti-error holding device 10. It is further explained that the anti-error limit boss 32 is obtained by integral processing of the frame and is divided into 4 sections. When in normal use, it is a clearance fit with the arc guide rail 5.

[0034] When the holding ring is opened but the stop pin 11 is not locked, causing the holding ring to rotate, the anti-misalignment limit boss 32 can prevent the arc guide rail at the opening of the holding ring (i.e., the connection between the upper and lower base plates) from entering the interior of the frame ( Figure 4 -d), thereby preventing the arc guide rail from derailing and causing damage to the tooling; when the ring opening rotates to the inside of the frame, the limit boss will prevent the ring from opening abnormally ( Figure 4-e), so that when the arc guide rail 5 passes through the arc guide rail slider 36, the opening gap is less than 2mm, ensuring the safe and stable operation of the guide rail. The anti-error holding device 10 specifically includes an anti-error holding frame 33, an anti-error limit block 34 and an anti-error holding device connecting shaft 35. Further description, the anti-error holding frame 33 is connected to the frame 12 through a connecting shaft 35, and is on the same side as the upper and lower base plate rotating shaft 26, and also uses an oil-free bushing as a connecting shaft rotating component. Multiple groups of anti-error limit blocks 34 are arranged around the axial direction and are installed in pairs on the holding frame 33 through threads. Under normal use, the anti-error holding device 10 and the upper and lower base plates 16 (18) rotate coaxially around the upper and lower base plate rotating shaft 26, and the anti-error holding device 10 does not work. Before the holding ring is opened, if the stop pin 11 is not in the locking position, the holding ring will rotate under human intervention. At this time, the rotation axis 35 of the anti-error holding device is not consistent with the rotation axis 26 of the upper and lower base plates, and the limit block 34 on the anti-error device will interfere with the arc guide rail 5, preventing the holding ring from opening normally. It is further explained that the installation distance between each pair of limit blocks 34 on the retaining frame 33 is adjustable. After adjustment, when there is a certain angle (≤±10°) between the rotation axis 35 of the anti-error holding device and the rotation axis 26 of the upper and lower base plates, the holding ring can still be opened normally, which not only gives the product clamped by the holding ring a certain angular adjustment margin, but also avoids the occurrence of derailment of the arc guide rail 5.

[0035] Before using the present invention, the frame is first mounted on the linear guide slider 13 using the frame mounting bolts 19, and the Y-direction and yaw attitude of the entire holding ring are adjusted using the frame side top screws 8. After the holding ring is installed, the center elevation of the holding ring and the Y-direction relative positions of multiple groups of holding rings are calibrated using a three-coordinate measuring instrument, and the position accuracy of all sled systems is adjusted to within the tolerance range based on the external reference.

[0036] When the present invention is used, after the logistics is transferred to the workstation, the automatic locking pin 7 is manually pressed, the upper and lower holding rings 16 / 18 are unlocked, and the operator uses the handle 15 to open the upper holding ring and wait until the product is loaded. The product is placed on the two sets of holding ring support modules 9 by hoisting or manual handling. Then the handle 15 is manually pulled to close the upper holding ring, and the polyurethane flexible material used in the clamping module 6 during the process presses the product. When the upper and lower holding rings are closed, the automatic locking pin 7 is automatically locked. When the product is docked, the operator pulls up the stop pin 11 and rotates it 90° to an empty position, at which time the rolling direction of the holding ring is in an active state. Then the operator operates the handle 15 to easily rotate the holding ring and the product. When the product is adjusted angularly, the operator puts down the stop pin 11 and puts it in the locking position, and the holding ring ball direction is placed in a stable state. Subsequently, the operator pushes the sled system axially along the linear guide rail 2 to move until the two products are docked. After docking, the operator releases the automatic locking pin 7, the product is out of the fully positioned state, and then opens the holding ring to hoist the docked product out of the current workstation.

[0037] In summary, a modular cylindrical product tooling with an error-proofing function is used for the clamping, positioning and docking of cylindrical products in the assembly production line. The tooling application is implemented, specifically requiring a workbench, a linear guide rail and a holding ring. The workbench uses an optical platform as a work surface, on which a linear module and multiple groups of holding rings are integrated. The holding ring includes a frame, a base plate, an arc guide rail, an error-proofing holding device and a functional component, which is installed on the linear guide slider through the frame. After integrated design processing and initial calibration and debugging, the holding ring can ensure that multiple cylindrical product parts have good posture consistency, providing basic conditions for docking. In addition, the design of the modular sled system has good functionality and ease of use on the basis of meeting the docking accuracy, and the quick-release properties and good interchangeability of the functional components allow the present invention to provide a unified solution for similar constructions of different models of products and different task requirements by updating different functional components. The ring after quality improvement has an error-proofing design to ensure stable operation of the ring under different fault modes.

Claims

1. A mold support assembly block cylindrical product tooling with an error-proof holding function, comprising a frame (12), a base plate (4), an arc guide rail (5), a clamping assembly 6 and a support assembly (9); the clamping assembly (6) and the support assembly (9) are installed on the inner wall of the base plate (4); the concave surface of the frame (12) is connected with a linear guide slider (13), and the linear guide slider (13) slides on the track to position the frame (12) in the Y and Z directions; an arc guide rail (5) is installed on one side of the annular base plate (4), and a plurality of arc guide sliders (36) are provided on the semi-circular upper part of the frame (12), and the arc guide rail (5) is installed in the plurality of arc guide sliders (36), and the arc guide rail (5) can drive the annular base plate (4) to slide in the plurality of arc guide sliders (36); a stop pin (11) is provided at one end of the upper part of the frame (12); it is characterized in that It also includes an anti-error holding mechanism (10), which includes an anti-error limiting boss (32) and an anti-error holding device. There are multiple anti-error limiting bosses (32), which are arranged on the same side of the ring frame (12) as the arc guide rail slider (36) and are arranged alternately. The anti-error limiting boss (32) is processed integrally with the frame; the anti-error limiting boss (32) has a clearance fit with the arc guide rail during normal use; the anti-error holding device specifically includes a retaining frame (33) and a limiting block (34), and the retaining frame (33) is installed on one end of the frame (12) through an oil-free bushing and is on the same side as the upper and lower base plate rotating shafts (26). The multiple pairs of limiting blocks (34) are installed in pairs on the retaining frame (33) through threads; Under normal use, the anti-error holding device rotates coaxially with the upper and lower base plates, and the anti-error holding device does not function; before the holding ring is opened, the stop pin (11) is not in the locking position, and the holding ring base plate (4) rotates slightly. At this time, the retaining frame (33) and the upper and lower base plate rotation axes (26) are not consistent, and the limit block (34) on the anti-error holding device will interfere with the arc guide rail (5), preventing the holding ring from opening normally.

2. The mold support assembly block cylindrical product tooling with error-proofing holding function according to claim 1 is characterized in that: The installation distance between each pair of limit blocks (34) on the retaining frame (33) is adjustable. After adjustment, when the set angle between the anti-error retaining device and the rotating axis of the holding ring is less than 10°, the holding ring can still be opened normally, which not only gives the product clamped by the holding ring a certain angular adjustment margin, but also avoids the occurrence of arc guide rail derailment failure.

3. The mold support assembly block cylindrical product tooling with error-proofing holding function according to claim 1 is characterized in that: There are four anti-misalignment limiting bosses, which are evenly distributed and arranged on the same side of the ring frame (12) as the arc guide rail slider (36).

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