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CN-117001311-B - Device and method for assembling O-shaped ring and check ring in hole

CN117001311BCN 117001311 BCN117001311 BCN 117001311BCN-117001311-B

Abstract

The invention relates to an assembly device and an assembly method for an O-shaped ring and a check ring in a hole. The assembly device for the O-shaped ring and the check ring in the hole comprises an installation table, a press fitting part and a first displacement assembly, wherein the installation table is used for placing a fitting to be assembled, a positioning column is arranged on the installation table and matched in the first end of the assembly hole, the positioning column is provided with a positioning surface, the positioning surface and one side surface of the annular groove in the first direction are located on the same plane, the press fitting part is used for extending into the assembly hole so that the compressed check ring and the compressed O-shaped ring move to the annular groove in sequence, and the first displacement assembly is connected with the press fitting part so as to drive the press fitting part to move in the first direction. The assembly device provided by the invention realizes the assembly of the retainer ring and the O-shaped ring through a group of components (namely the first displacement component and the press fitting component), ensures the assembly position relationship of the retainer ring and the O-shaped ring, has high yield and high assembly efficiency, and avoids the problems of error assembly, missing assembly and the like of the retainer ring and the O-shaped ring caused by manual assembly.

Inventors

  • Xie sai
  • Xue Tongjun
  • ZHANG GEYU
  • YU GUOQIANG

Assignees

  • 北京天玛智控科技股份有限公司
  • 北京煤科天玛自动化科技有限公司

Dates

Publication Date
20260508
Application Date
20230821

Claims (9)

  1. 1. An assembly device of downthehole O type circle, retaining ring, which characterized in that includes: the mounting table (1), the mounting table (1) is used for placing a fitting to be mounted, the fitting to be mounted is provided with a mounting hole extending along a first direction, the mounting hole is provided with a first end and a second end in the first direction, the mounting hole is provided with a ring groove, the mounting table (1) is provided with a positioning column (11), the positioning column (11) is matched in the first end of the mounting hole, one end of the positioning column (11), which is positioned in the mounting hole in the first direction, is provided with a positioning surface (111), and the positioning surface (111) and one side surface of the ring groove, which is positioned in the first direction, are positioned on the same plane; The pressure equipment spare (2), pressure equipment spare (2) are movably set up in the first direction, pressure equipment spare (2) be in first direction with reference column (11) are relative, pressure equipment spare (2) are used for stretching into in the pilot hole so that the retaining ring after compressing and the O type circle after compressing successively remove to annular department, pressure equipment spare (2) include: A plurality of pressure heads (21), a plurality of pressure heads (21) being annularly distributed along the circumference of the positioning column (11), and A plurality of connecting rods (22), a plurality of the connecting rods (22) are in one-to-one correspondence with a plurality of the pressure heads (21), one end of each connecting rod (22) is connected with one end of each pressure head (21) in the first direction, and The first displacement assembly (3) is connected with the press fitting piece (2) to drive the press fitting piece (2) to move in the first direction; the number of the first displacement assemblies (3) is multiple, the first displacement assemblies (3) are in one-to-one correspondence with the connecting rods (22), and the first displacement assemblies (3) are connected with the other ends of the connecting rods (22).
  2. 2. The device for assembling the O-ring and the retainer ring in the hole according to claim 1, wherein the pressure head (21) is provided with an arc-shaped surface (211), and the arc-shaped surface (211) is positioned on the outer side of the pressure head (21).
  3. 3. The device for assembling an O-ring and a retainer ring in a hole according to claim 1, wherein, The device further comprises a connecting column (4), wherein the connecting column (4) is connected with the mounting table (1), and a plurality of mounting holes are annularly formed in the connecting column (4) along the circumferential direction of the positioning column (11); the first displacement assembly (3) comprises: A rotary compression cylinder (31), the rotary compression cylinder (31) being provided on the connection column (4), the rotary compression cylinder (31) having a working end, and The guide shaft (32) is arranged in the mounting hole, one end of the guide shaft (32) in the first direction is connected with the other end of the connecting rod (22), and the other end of the guide shaft (32) in the first direction is opposite to the working end of the rotary compression cylinder (31) which is rotated in place so that the working end drives the guide shaft (32) to move towards the positioning surface (111); And the elastic piece (33) is arranged on the connecting column (4), and the elastic piece (33) is connected with the guide shaft (32).
  4. 4. An assembly device for an O-ring and a retainer ring in a hole according to claim 3, wherein the elastic member (33) is a compression spring, the compression spring is located in the mounting hole, and the compression spring is sleeved on the guide shaft (32).
  5. 5. An assembly device for an O-ring and a retainer ring in a hole according to claim 3, wherein an adjusting hole (221) is formed in the connecting rod (22), a threaded hole is formed in the end of the guide shaft (32), the threaded hole is opposite to a part of the adjusting hole (221), and the connecting rod (22) and the end of the guide shaft (32) are connected by being matched in the threaded hole through the adjusting hole (221) through a screw.
  6. 6. The in-hole O-ring and retainer ring assembly device of claim 1, further comprising: a guide cylinder (5), the guide cylinder (5) being opposite to the mounting table (1) in the first direction, the guide cylinder (5) being movably arranged in the first direction and having a guide position and a release position, a side surface of the guide cylinder (5) adjacent to the mounting table (1) in the first direction being on the same plane as the other side surface of the ring groove in the first direction when the guide cylinder (5) is in the guide position, the guide cylinder (5) being spaced apart from the fitting to be mounted when the guide cylinder (5) is in the release position; And the second displacement assembly (6) is connected with the guide cylinder (5) to drive the guide cylinder (5) to move between the guide position and the disengaging position.
  7. 7. The device for assembling the O-ring and the retainer ring in the hole according to claim 6, further comprising a third displacement assembly (7), wherein the third displacement assembly (7) is arranged on the second displacement assembly (6) so that the second displacement assembly (6) drives the third displacement assembly (7) to synchronously move with the guide cylinder (5), and the third displacement assembly (7) is connected with each of the press-fitting part (2) and the first displacement assembly (3) to synchronously move the press-fitting part (2) and the first displacement assembly (3).
  8. 8. A method for assembling an O-ring and a retainer ring in a hole, using the device for assembling an O-ring and a retainer ring in a hole according to any one of claims 1 to 7, comprising the steps of: the to-be-assembled part is provided with an assembly hole extending along a first direction, the assembly hole is provided with a first end and a second end in the first direction, and the assembly hole is provided with a ring groove; Step A, placing the to-be-assembled part on an installation table (1), wherein a positioning column (11) is arranged on the installation table (1), the positioning column (11) is matched in the first end of the assembly hole, one end of the positioning column (11) positioned in the first direction of the assembly hole is provided with a positioning surface (111), and the positioning surface (111) and one side surface of the ring groove in the first direction are positioned on the same plane; Step B, the compressed retainer ring is obliquely placed in the second end of the assembly hole, the first displacement assembly (3) drives the press-fit piece (2) to extend into the assembly hole so as to push the compressed retainer ring to move towards the positioning surface (111), when the retainer ring is opposite to the annular groove in the radial direction of the mounting table (1), the retainer ring is naturally opened in the annular groove, namely the assembly of the retainer ring is completed, and then the first displacement assembly (3) drives the press-fit piece (2) to withdraw from the assembly hole; And C, obliquely placing the compressed O-shaped ring in the second end of the assembly hole, wherein the first displacement assembly (3) drives the press-fitting part (2) to extend into the assembly hole so as to push the compressed O-shaped ring to move towards the direction of the positioning surface (111), and when the O-shaped ring is opposite to the annular groove in the radial direction of the mounting table (1), the O-shaped ring naturally opens in the annular groove, namely, the assembly of the O-shaped ring is completed, and then the first displacement assembly (3) drives the press-fitting part (2) to withdraw from the assembly hole.
  9. 9. The method for assembling O-rings and retainer rings according to claim 8, wherein, In the step B, the second displacement assembly (6) drives the guide cylinder (5) to be matched into the assembly hole, so that one side surface, adjacent to the mounting table (1), of the guide cylinder (5) in the first direction is positioned on the same plane as the other side surface, in the first direction, of the annular groove, then the compressed retainer ring is placed in the guide cylinder (5), and the first displacement assembly (3) pushes the retainer ring to move through the press-fitting piece (2); In the step C, the compressed O-shaped ring is placed in the guide cylinder (5), then the first displacement assembly (3) pushes the O-shaped ring to move through the press fitting piece (2), and when the O-shaped ring is assembled, the second displacement assembly (6) drives the guide cylinder (5) to be separated from the assembly hole.

Description

Device and method for assembling O-shaped ring and check ring in hole Technical Field The invention relates to the technical field of sealing, in particular to an assembly device and an assembly method of an O-shaped ring and a check ring in a hole. Background In the related art, the inner groove of the O-shaped sealing ring and the sealing retainer ring is assembled mainly in a manual assembly mode, so that the assembly is difficult, and the assembly efficiency is low. In the manual assembly process, the assembly positions of the check rings and the O-shaped sealing rings cannot be determined, the sequence of the installation positions is easy to be reversed, the yield is low, the check rings are deformed after maintenance and cannot be used continuously, and the economic cost is increased. In some related technologies, the O-ring can realize automatic assembly of the inner groove, and the main realization method is that the O-ring realizes shape deformation through the clamping jaw, so that the O-ring is inwards sunken, the clamping jaw is pulled out after the O-ring is moved to the sealing groove, and the O-ring is restored to the original shape, so that the assembly is completed. However, the sealing retainer ring is hard in material, so that deformation similar to that of an O-shaped sealing ring cannot occur, the notch of the retainer ring has a definite direction, and the retainer ring and the inner groove cannot be assembled by using the same clamping jaw structure. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides an assembly device for an O-shaped ring and a check ring in a hole, which realizes the assembly of the check ring and the O-shaped ring through a group of components (namely a first displacement assembly and a press fitting assembly), ensures the assembly position relationship of the check ring and the O-shaped ring, has high yield and high assembly efficiency, and avoids the problems of error assembly, missing assembly and the like of the check ring and the O-shaped ring caused by manual assembly. In addition, in the assembly process, the retainer ring and the O-shaped ring have no tensioning process, so that the quality of the retainer ring and the O-shaped ring is not damaged. The embodiment of the invention provides an assembly method of an O-shaped ring and a check ring in a hole. The device for assembling the O-shaped ring and the check ring in the hole comprises: the mounting table is used for placing a fitting to be mounted, the fitting to be mounted is provided with a mounting hole extending along a first direction, the mounting hole is provided with a first end and a second end in the first direction, the mounting hole is provided with a ring groove, the mounting table is provided with a positioning column, the positioning column is matched in the first end of the mounting hole, one end of the positioning column, which is positioned in the mounting hole in the first direction, is provided with a positioning surface, and the positioning surface and one side surface of the ring groove, which is positioned in the first direction, are positioned on the same plane; The press-fitting part is movably arranged in a first direction, is opposite to the positioning column in the first direction and is used for extending into the assembly hole so as to enable the compressed retainer ring and the compressed O-shaped ring to move to the ring groove in sequence, and The first displacement assembly is connected with the press fitting piece to drive the press fitting piece to move in the first direction. The assembly device for the O-shaped ring and the check ring in the hole provided by the embodiment of the invention realizes the assembly of the check ring and the O-shaped ring through a group of components (namely the first displacement component and the press fitting component), ensures the assembly position relationship of the check ring and the O-shaped ring, has high yield and high assembly efficiency, and avoids the problems of error assembly, missing assembly and the like of the check ring and the O-shaped ring caused by manual assembly. In addition, in the assembly process, the retainer ring and the O-shaped ring have no tensioning process, so that the quality of the retainer ring and the O-shaped ring is not damaged. In some embodiments, the press-fit comprises: a plurality of pressure heads annularly distributed along the circumference of the positioning column, and The plurality of connecting rods are in one-to-one correspondence with the plurality of pressure heads, and one end of each connecting rod is connected with one end of each pressure head in the first direction; The number of the first displacement components is multiple, the first displacement components are in one-to-one correspondence with the connecting rods, and the first displacement