CN117381359B - Semi-automatic assembly platform and assembly method for high-precision constant-force spring support and hanger - Google Patents
Semi-automatic assembly platform and assembly method for high-precision constant-force spring support and hanger Download PDFInfo
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- CN117381359B CN117381359B CN202311686112.2A CN202311686112A CN117381359B CN 117381359 B CN117381359 B CN 117381359B CN 202311686112 A CN202311686112 A CN 202311686112A CN 117381359 B CN117381359 B CN 117381359B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 239000003921 oil Substances 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/048—Springs
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Abstract
The invention discloses a semi-automatic assembly platform and an assembly method of a high-precision constant force spring support and hanger, wherein the assembly platform is used for loading the constant force spring support and hanger to be assembled; a group of auxiliary spring compression devices are respectively arranged on two sides of the assembly carrier, and auxiliary springs of the constant force spring support and hanger are compressed to two sides in a balanced manner so as to assemble main springs of the constant force spring support and hanger; the auxiliary spring compression device comprises a pull rod, one end of the pull rod, which is close to the constant force spring support and hanger, is provided with a threaded sleeve, and is connected with a screw on the mounting plate of the auxiliary spring through the threaded sleeve; the other end is connected with a hydraulic oil cylinder, and the pull rod is driven to move through the hydraulic oil cylinder, so that the auxiliary spring is driven to move towards the direction far away from the main spring, and the main spring is assembled in the constant force spring support and hanger shell. The auxiliary spring compression devices are respectively arranged on two sides of the high-precision constant-force spring support and hanger semiautomatic assembly platform, and auxiliary springs of the constant-force spring support and hanger are compressed in a balanced mode to two sides so that main springs of the constant-force spring support and hanger can be assembled, and therefore high-precision automatic assembly is achieved.
Description
Technical Field
The invention relates to the technical field of constant force spring support and hanger assembly equipment, in particular to a high-precision constant force spring support and hanger semi-automatic assembly platform and an assembly method.
Background
The constant force spring support and hanger is a mechanical device capable of suspending and supporting pipes and equipment. When the pipe or device is displaced, they can always obtain a constant supporting force through the constant force spring support, as long as the displacement is changed within a preselected load displacement, no matter how much. Therefore, no new additional pressure is brought to the pipeline or the equipment, and serious equipment and safety accidents caused by the displacement stress of the pipeline can be avoided.
The existing constant force spring support mainly comprises a main spring and auxiliary springs on two sides of the main spring, and pipelines and equipment are suspended and supported through the elastic force generated by the main spring and the auxiliary springs. When the constant force spring support and hanger is assembled, the auxiliary springs at two sides are required to be installed in the shell, and the main springs are assembled in the compression state of the auxiliary springs, so that the auxiliary springs are always in the compression pre-tightening state after the main springs are assembled.
At present, when auxiliary springs are assembled, the auxiliary springs are compressed through a simple hydraulic mechanism which is manually matched, the assembly is difficult to ensure that the compression tension of the auxiliary springs at two sides is the same, and is only suitable for assembling auxiliary springs with smaller specifications, and when the specifications of the constant force spring support and hanger are larger, the common hydraulic mechanism is difficult to meet the assembly requirements and accuracy.
Disclosure of Invention
The invention aims to provide a semi-automatic assembly platform and an assembly method for a high-precision constant-force spring support and hanger, which are used for solving the problem of the defects in the prior art.
In order to solve the technical problems, the invention provides a semi-automatic assembly platform of a high-precision constant-force spring support and hanger, which comprises an assembly carrier for loading the constant-force spring support and hanger to be assembled;
a group of auxiliary spring compression devices are respectively arranged on two sides of the assembly carrier, and auxiliary springs of the constant force spring support and hanger are compressed in a balanced manner towards two sides so as to assemble main springs of the constant force spring support and hanger;
the auxiliary spring compression device comprises a pull rod, wherein one end of the pull rod, which is close to the constant force spring support and hanger, is provided with a threaded sleeve, and is connected with a screw on the mounting plate of the auxiliary spring through the threaded sleeve; the other end of the main spring is connected with a hydraulic oil cylinder, and the hydraulic oil cylinder drives the pull rod to move, so that the auxiliary spring is driven to move towards a direction away from the main spring, and the main spring is assembled in the constant force spring support and hanger shell.
Preferably, the auxiliary spring compression device further comprises a fixed carrier plate and a sliding carrier plate, the hydraulic oil cylinder is fixedly installed on the sliding carrier plate through a bracket, the sliding carrier plate is provided with a screw rod driving mechanism, and the sliding carrier plate and the hydraulic oil cylinder on the sliding carrier plate are driven to move towards the direction of the main spring through the screw rod driving mechanism.
Preferably, the screw rod driving mechanism is arranged below the fixed carrier plate and comprises a screw rod motor, a screw rod and a nut pair; the screw rod motor is fixedly arranged below the fixed carrier plate, one end of the screw rod is connected with an output shaft of the screw rod motor, the other end of the screw rod extends along the moving direction of the sliding carrier plate, and the end part of the screw rod motor is rotationally connected with the fixed carrier plate through a bearing seat; and the nut pair penetrates through the fixed carrier plate and is connected with the sliding carrier plate, so that the sliding carrier plate and the hydraulic cylinder on the sliding carrier plate are driven to move towards the direction of the main spring.
Preferably, the piston rod of the hydraulic oil cylinder is a hollow sleeve, and the pull rod passes through the piston rod of the hydraulic oil cylinder; a stop ring is arranged on the pull rod, and a piston rod of the hydraulic oil cylinder contacts the stop ring and pushes the pull rod to move in a direction away from the main spring;
and when the conical locating ring is inserted into the mounting hole on the side surface of the constant force spring support and hanger, the central axis of the screw rod on the mounting plate of the auxiliary spring coincides with the central axis of the screw rod.
Preferably, one end of the pull rod, which is far away from the constant force spring support and hanger, is connected with a screwing motor, and one end of the pull rod, which is close to the constant force spring support and hanger, is connected with a threaded sleeve; the pull rod is driven to rotate through the screwing motor, so that the threaded sleeve is in threaded connection with a screw on the mounting plate of the auxiliary spring.
Preferably, the pull rod is connected with the output shaft of the screwing motor through a coupler.
Preferably, one end of the coupler is fixedly connected with an output shaft of the screwing motor, a hexagonal sliding groove is formed in the other end of the coupler, and a hexagonal connector matched with the hexagonal sliding groove is formed in the pull rod in a machining mode, so that the pull rod is in sliding connection with the coupler, and meanwhile the screwing motor can drive the pull rod to rotate through the coupler;
the bottom of the screwing motor slides along a sliding rail on the sliding transfer plate through a sliding block, and is close to or far away from the pull rod, when the pull rod needs to rotate to enable the threaded sleeve to be in threaded connection with the screw rod, the sliding block slides along the sliding rail to drive the screwing motor, the coupler is close to and is sleeved with the hexagonal connector of the pull rod, so that the screwing motor rotates to drive the pull rod, the threaded sleeve and the screw rod on the mounting plate of the auxiliary spring to be in threaded connection.
Preferably, a limiting bracket is arranged at one end of the pull rod, which is close to the coupler, and is clamped in a limiting groove of the pull rod;
the limiting bracket comprises a limiting oil cylinder and a U-shaped support driven by the limiting oil cylinder, the U-shaped support is driven by the limiting oil cylinder to be clamped in a limiting groove of the pull rod, the limiting bracket is fixed on a motor seat of the screwing motor, and when the screwing motor drives the threaded sleeve to rotate, the limiting bracket moves along the axial direction, so that the threaded sleeve is in threaded connection with a screw on a mounting plate of the auxiliary spring.
Preferably, a sliding carrying platform is slidably arranged on the assembling carrying platform, the sliding carrying platform is provided with a sliding oil cylinder, and the sliding carrying platform is driven by the sliding oil cylinder to convey the main spring loaded on the sliding carrying platform into the shell of the constant force spring support and hanger for assembling.
The invention also provides a method for assembling the constant force spring support and hanger by the semi-automatic assembly platform of the high-precision constant force spring support and hanger, which comprises the following steps:
s1: firstly, hoisting a shell of a constant force spring support and hanger to the central position of an assembly carrier, and positioning the position;
s2: then, the auxiliary springs at two sides are sequentially arranged in the shell of the constant force spring support and hanger;
s3: then, simultaneously starting screw rod driving mechanisms of the two groups of auxiliary spring compression devices, and driving the sliding transfer plate and the hydraulic oil cylinders on the sliding carrier plate to move towards the direction of the constant force spring support and hanger;
s4: stopping until the threaded sleeve at the front end of the pull rod contacts with the screw rod on the auxiliary spring mounting plate;
s5: then starting a limiting oil cylinder of the limiting bracket, and driving the U-shaped bracket to be clamped in a limiting groove of the pull rod upwards, so that the screwing motor moves along with the axial direction of the pull rod;
s6: then the screwing motor is started, and the hexagonal sliding groove of the coupler is spliced with the hexagonal connector of the pull rod, so that the pull rod and the threaded sleeve can be driven to rotate, and meanwhile, the screwing motor and the pull rod are driven to continuously move towards the direction of the constant force spring support and hanger along with the sliding rail along with the rotating sliding block, so that the threaded sleeve is in threaded connection with the screw on the auxiliary spring mounting plate;
s7: after the threaded sleeve is in threaded connection with the screw rod, starting a limiting oil cylinder of the limiting bracket, driving the U-shaped bracket to be downward far away from the limiting groove, and unlocking the axial movement function of the pull rod;
s8: then starting a hollow sleeve piston rod of the hydraulic oil cylinder, and moving a pull rod by a stop ring on the piston rod towards a direction away from the constant force spring support and hanger so that the threaded sleeve drives the screw rod and the auxiliary springs to perform compression movement, and at the moment, only controlling the hydraulic system can ensure that two groups of auxiliary spring compression devices provide the same tensile force for the auxiliary springs on two sides;
s9: then starting the sliding oil cylinder to send the main spring on the sliding carrier into the shell of the constant force spring support and hanger for assembly;
s10: and then gradually releasing the tension of the hydraulic oil cylinder, gradually releasing the elasticity of the auxiliary spring until the auxiliary spring is abutted against the main spring, repeating the steps S5 and S6, starting the screwing motor to reversely rotate, separating the threaded sleeve from the screw rod, and finally starting the screw rod driving mechanism to drive the sliding and transferring plate to return to the original position.
Compared with the prior art, the invention has the beneficial effects that:
1. the auxiliary spring compression devices are respectively arranged on two sides of the semi-automatic assembly platform of the high-precision constant-force spring support and hanger, and the auxiliary springs of the constant-force spring support and hanger are compressed in a balanced manner towards two sides so as to assemble the main springs of the constant-force spring support and hanger, so that the high-precision automatic assembly is realized;
2. when the auxiliary spring works in the hydraulic oil cylinder, the tension of the piston rod is concentric with the back seat force of the oil cylinder, and no mechanical relation is generated between the auxiliary spring and other parts, the auxiliary spring corresponds to the product assembling flow and the part loading path, the two ends of the main spring of the product are opened, and the installation of the main spring is not influenced in the assembling process.
Drawings
FIG. 1 is a schematic structural view of a first view angle of a semi-automatic assembly platform of a high-precision constant-force spring support and hanger provided by the invention;
FIG. 2 is a schematic structural view of a second view angle of the semi-automatic assembly platform of the high-precision constant-force spring support and hanger provided by the invention;
FIG. 3 is a schematic diagram of the structure of the inside of the semi-automatic assembly platform of the high-precision constant-force spring support and hanger provided by the invention;
FIG. 4 is a top view of the semi-automatic assembly platform of the high-precision constant force spring hanger provided by the invention;
FIG. 5 is a schematic view of an auxiliary spring compression device according to the present invention at a first view angle;
FIG. 6 is a front view of the auxiliary spring compression device provided by the present invention;
FIG. 7 is a top view of the auxiliary spring compression device provided by the present invention;
FIG. 8 is a schematic view of an auxiliary spring compression device according to the present invention at a second view;
fig. 9 is a schematic view of an internal structure of the mounting stage according to the present invention.
In the figure: 1. assembling a carrying platform; 2. auxiliary spring compression device; 3. screwing the motor; 4. a threaded sleeve; 5. a coupling; 6. a slide block; 7. a limit bracket; 8. sliding a transfer platform; 9. a sliding oil cylinder; 100. a constant force spring support and hanger; 101. auxiliary springs; 102. a main spring; 103. a screw; 201. a pull rod; 202. a hydraulic cylinder; 203. fixing the carrier plate; 204. sliding a transfer plate; 205. a screw rod driving mechanism; 206. a stop ring; 207. a conical positioning ring; 2011. a hexagonal connector; 2012. and a limit groove.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Example 1
The invention provides a semi-automatic assembly platform of a high-precision constant force spring support and hanger, referring to FIGS. 1-4, which comprises an assembly carrier 1 for loading a constant force spring support and hanger 100 to be assembled; a group of auxiliary spring compression devices 2 are respectively arranged at two sides of the assembly carrier 1, and the auxiliary springs 101 of the constant force spring support and hanger 100 are compressed in a balanced manner towards two sides so as to be assembled with the main springs 102 of the constant force spring support and hanger 100; the auxiliary spring compression device 2 comprises a pull rod 201, wherein a threaded sleeve is arranged at one end of the pull rod 201, which is close to the constant force spring support and hanger 100, and is connected with a screw on a mounting plate of the auxiliary spring 101 through the threaded sleeve; the other end is connected with a hydraulic oil cylinder 202, and the hydraulic oil cylinder 202 drives the pull rod 201 to move, so that the auxiliary spring 101 is driven to move towards a direction away from the main spring 102, and the main spring 102 is assembled in the shell of the constant force spring support and hanger 100.
Specifically, referring to fig. 5 and 6, the auxiliary spring compression device 2 further includes a fixed carrier plate 203 and a sliding carrier plate 204, the hydraulic cylinder 202 is fixedly mounted on the sliding carrier plate 204 through a bracket, the sliding carrier plate 204 is configured with a screw driving mechanism 205, and the sliding carrier plate 204 and the hydraulic cylinder 202 on the sliding carrier plate 204 are driven to move toward the main spring 102 through the screw driving mechanism 205.
The screw rod driving mechanism 205 is installed below the fixed carrier plate 203, and comprises a screw rod motor, a screw rod and a nut pair; the screw motor is fixedly arranged below the fixed carrier plate 203, one end of the screw is connected with an output shaft of the screw motor, the other end of the screw extends along the moving direction of the sliding carrier plate 204, and the end of the screw is rotationally connected with the fixed carrier plate 203 through a bearing seat; the nut pair passes through the fixed carrier plate 203 and is connected with the sliding carrier plate 204, so as to drive the sliding carrier plate 204 and the hydraulic cylinder 202 on the sliding carrier plate 204 to move towards the direction of the main spring 102.
In some embodiments, a through groove is formed in the middle of the fixed carrier 203 along the moving direction, and when the screw motor rotates, the nut pair drives the sliding carrier 204 and the hydraulic cylinder 202 on the sliding carrier 204 to move toward the main spring 102 along the through groove.
Further, the piston rod of the hydraulic cylinder 202 is a hollow sleeve, and the pull rod 201 passes through the piston rod of the hydraulic cylinder 202; and a stopper ring 206 is mounted on the pull rod 201, and a piston rod of the hydraulic cylinder 202 contacts the stopper ring 206 and pushes the pull rod 201 to move in a direction away from the main spring 102.
Further, a conical positioning ring 207 is further disposed at one end of the hydraulic cylinder 202 near the constant force spring support 100, the pull rod 201 passes through and is in clearance fit with the conical positioning ring 207, and when the conical positioning ring 207 is inserted into the mounting hole on the side surface of the constant force spring support 100, the central axis of the screw rod 201 coincides with the central axis of the screw rod on the mounting plate of the auxiliary spring 101.
In some embodiments, the tapered positioning ring 207 is inserted into the tapered positioning ring mounting seat, and when a constant force spring hanger 100 of a different model needs to be assembled, the tapered positioning ring 207 and the pull rod 201 can be replaced for adapting, so that the high-precision constant force spring hanger semiautomatic assembly platform can assemble a constant force spring hanger 100 of a different model.
Specifically, referring to fig. 7 and fig. 8, one end of the pull rod 201 far away from the constant force spring support 100 is connected with a screwing motor 3, and one end near to the constant force spring support 100 is connected with a threaded sleeve 4; the pull rod 201 is driven to rotate by the screwing motor 3, so that the threaded sleeve 4 is in threaded connection with the screw 103 on the mounting plate of the auxiliary spring 101.
Further, the pull rod 201 is connected with the output shaft of the screwing motor 3 through a coupling 5.
In some embodiments, one end of the coupling 5 is fixedly connected with the output shaft of the screwing motor 3, the other end of the coupling is provided with a hexagonal sliding groove, the pull rod 201 is processed with a hexagonal connector 2011 adapted to the hexagonal sliding groove, so that the pull rod 201 is slidably connected with the coupling 5, and meanwhile, the screwing motor 3 can drive the pull rod 201 to rotate through the coupling 5; the bottom of the screwing motor 3 slides along a sliding rail on the sliding transfer plate 204 through a sliding block 6, and is close to or far away from the pull rod 201, when the pull rod 201 needs to rotate to enable the threaded sleeve to be in threaded connection with the screw rod 103, the sliding block 6 slides along the sliding rail to drive the screwing motor 3 and the coupler 5 to be close to and sleeved with the hexagonal connector 2011 of the pull rod 201, so that the screwing motor 3 rotates to drive the pull rod 201 and the threaded sleeve 4 to be in threaded connection with the screw rod on the mounting plate of the auxiliary spring 101.
Specifically, a limiting bracket 7 is disposed at one end of the pull rod 201 near the coupling 5, and the limiting bracket 7 is clamped in a limiting groove 2012 of the pull rod 201; the limiting bracket 7 comprises a limiting oil cylinder and a U-shaped support driven by the limiting oil cylinder, the U-shaped support is driven by the limiting oil cylinder to be clamped in a limiting groove 2012 of the pull rod 201, the limiting bracket 7 is fixed on a motor seat of the screwing motor 3, and when the screwing motor 3 drives the threaded sleeve 4 to rotate, the threaded sleeve 4 is axially moved, so that the threaded sleeve 4 is in threaded connection with a screw on a mounting plate of the auxiliary spring 101.
Specifically, referring to fig. 9, the assembly carrier 1 is slidably provided with a sliding carrier 8, the sliding carrier 8 is provided with a sliding cylinder 9, and the sliding carrier 8 is driven by the sliding cylinder 9 to convey the main spring 102 loaded on the sliding carrier 8 into the housing of the constant force spring support 100 for assembly.
Example two
The invention also provides a method for assembling the constant force spring support and hanger by the semi-automatic assembly platform of the high-precision constant force spring support and hanger, referring to figures 1-9, comprising the following steps:
s1: firstly, hoisting a shell of a constant force spring support and hanger 100 to the central position of an assembly carrier 1, and positioning the position;
s2: then, the auxiliary springs 101 on two sides are sequentially arranged in the shell of the constant force spring support and hanger 100;
s3: then, the screw rod driving mechanisms 205 of the two groups of auxiliary spring compression devices 2 are simultaneously started, and the sliding transfer plate 204 and the hydraulic oil cylinders 202 on the sliding transfer plate 204 are driven to move towards the direction of the constant force spring support and hanger 100;
s4: stopping until the threaded sleeve 4 at the front end of the pull rod 201 contacts with the screw 103 on the auxiliary spring 101 mounting plate;
s5: then, starting a limiting oil cylinder of the limiting bracket 7, and driving the U-shaped bracket to be clamped in a limiting groove 2012 of the pull rod 201 upwards, so that the screwing motor 3 moves along with the axial direction of the pull rod 201;
s6: then the screwing motor 3 is started, and as the hexagonal sliding groove of the coupler 5 is spliced with the hexagonal connector 2011 of the pull rod 201, the pull rod 201 and the threaded sleeve 4 can be driven to rotate, and meanwhile, the screwing motor 3 and the pull rod 201 are driven to continuously move towards the direction of the constant force spring support and hanger 100 along the sliding rail along with the rotating sliding block 6, so that the threaded sleeve 4 is in threaded connection with the screw 103 on the auxiliary spring 101 mounting plate;
s7: after the threaded sleeve 4 is in threaded connection with the screw 103, starting a limiting oil cylinder of the limiting bracket 7, driving the U-shaped bracket to be downward far away from the limiting groove 2012, and unlocking the axial movement function of the pull rod 201;
s8: then, a hollow sleeve piston rod of the hydraulic oil cylinder 202 is started, a stop ring 206 on the piston rod drives a pull rod 201 to move towards a direction away from the constant force spring support and hanger 100, so that a threaded sleeve 4 drives a screw rod 103 and auxiliary springs to compress, and at the moment, the two groups of auxiliary spring compression devices 2 can provide the same pulling force for the auxiliary springs 101 on two sides only by controlling a hydraulic system;
s9: then, starting the sliding oil cylinder 9 to send the main spring 102 on the sliding carrier 8 into the shell of the constant force spring support and hanger 100 for assembly;
s10: then gradually releasing the tension of the hydraulic oil cylinder 202, gradually releasing the elastic force of the auxiliary spring 101 until the auxiliary spring is abutted against the main spring 102, repeating the steps S5 and S6, starting the screwing motor 3 to reversely rotate, separating the threaded sleeve 4 from the screw 103, and finally starting the screw driving mechanism 205 to drive the sliding and carrying plate 204 to return to the original position.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (4)
1. The semi-automatic assembly platform of the high-precision constant force spring support and hanger is characterized by comprising an assembly carrier (1) for loading the constant force spring support and hanger (100) to be assembled;
a group of auxiliary spring compression devices (2) are respectively arranged on two sides of the assembly carrier (1), and auxiliary springs (101) of the constant force spring support and hanger (100) are compressed in a balanced manner towards two sides so as to assemble main springs (102) of the constant force spring support and hanger (100);
the auxiliary spring compression device (2) comprises a pull rod (201), wherein one end of the pull rod (201) close to the constant force spring support and hanger (100) is provided with a threaded sleeve, and the threaded sleeve is connected with a screw on a mounting plate of the auxiliary spring (101); the other end of the main spring is connected with a hydraulic oil cylinder (202), and the hydraulic oil cylinder (202) drives the pull rod (201) to move, so that the auxiliary spring (101) is driven to move towards a direction away from the main spring (102) to assemble the main spring (102) in the shell of the constant force spring support and hanger (100);
the auxiliary spring compression device (2) further comprises a fixed carrier plate (203) and a sliding carrier plate (204), the hydraulic oil cylinder (202) is fixedly arranged on the sliding carrier plate (204) through a bracket, the sliding carrier plate (204) is provided with a screw rod driving mechanism (205), and the sliding carrier plate (204) and the hydraulic oil cylinder (202) on the sliding carrier plate (204) are driven to move towards the direction of the main spring (102) through the screw rod driving mechanism (205);
the piston rod of the hydraulic oil cylinder (202) is a hollow sleeve, and the pull rod (201) passes through the piston rod of the hydraulic oil cylinder (202); and a stop ring (206) is arranged on the pull rod (201), and a piston rod of the hydraulic oil cylinder (202) contacts the stop ring (206) and pushes the pull rod (201) to move towards a direction away from the main spring (102);
one end of the hydraulic cylinder (202) close to the constant force spring support hanger (100) is further provided with a conical positioning ring (207), the pull rod (201) penetrates through and is in clearance fit with the conical positioning ring (207), and when the conical positioning ring (207) is inserted into a mounting hole on the side surface of the constant force spring support hanger (100), the central axis of the pull rod (201) coincides with the central axis of a screw on a mounting plate of the auxiliary spring (101);
one end, far away from the constant force spring support and hanger (100), of the pull rod (201) is connected with a screwing motor (3), and one end, close to the constant force spring support and hanger (100), of the pull rod is connected with a threaded sleeve (4); the pull rod (201) is driven to rotate through the screwing motor (3), so that the threaded sleeve (4) is in threaded connection with a screw rod (103) on the mounting plate of the auxiliary spring (101), and the pull rod (201) is connected with an output shaft of the screwing motor (3) through a coupler (5);
one end of the coupler (5) is fixedly connected with an output shaft of the screwing motor (3), a hexagonal sliding groove is formed in the other end of the coupler, a hexagonal connector (2011) matched with the hexagonal sliding groove is formed in the pull rod (201) in a machining mode, the pull rod (201) is in sliding connection with the coupler (5), and meanwhile the screwing motor (3) can drive the pull rod (201) to rotate through the coupler (5);
the bottom of the screwing motor (3) slides along a sliding rail on the sliding carrier plate (204) through a sliding block (6), and is close to or far away from the pull rod (201), when the pull rod (201) needs to rotate to enable a threaded sleeve to be in threaded connection with a screw rod (103), the sliding block (6) slides along the sliding rail to drive the screwing motor (3) and the coupling (5) to be close to and in sleeve joint with a hexagonal connector (2011) of the pull rod (201), so that the screwing motor (3) rotates to drive the pull rod (201) and the threaded sleeve (4) to be in threaded connection with the screw rod on the mounting plate of the auxiliary spring (101);
one end of the pull rod (201) close to the coupler (5) is provided with a limiting bracket (7), and the limiting bracket (7) is clamped in a limiting groove (2012) of the pull rod (201);
the limiting bracket (7) comprises a limiting oil cylinder and a U-shaped support driven by the limiting oil cylinder, the U-shaped support is driven by the limiting oil cylinder to be clamped in a limiting groove (2012) of the pull rod (201), the limiting bracket (7) is fixed on a motor seat of the screwing motor (3), and when the screwing motor (3) drives the threaded sleeve (4) to rotate, the threaded sleeve (4) is axially moved, and is in threaded connection with a screw on a mounting plate of the auxiliary spring (101).
2. The semi-automatic assembly platform of the high-precision constant force spring hanger according to claim 1, wherein the screw rod driving mechanism (205) is installed below the fixed carrier plate (203) and comprises a screw rod motor, a screw rod and a nut pair; the screw rod motor is fixedly arranged below the fixed carrier plate (203), one end of the screw rod is connected with an output shaft of the screw rod motor, the other end of the screw rod extends along the moving direction of the sliding carrier plate (204), and the end of the screw rod motor is rotationally connected with the fixed carrier plate (203) through a bearing seat; the nut pair penetrates through the fixed carrier plate (203) and is connected with the sliding carrier plate (204), so that the sliding carrier plate (204) and the hydraulic oil cylinder (202) on the sliding carrier plate (204) are driven to move towards the direction of the main spring (102).
3. The semi-automatic assembly platform of the high-precision constant force spring support and hanger according to claim 1, wherein a sliding carrier (8) is slidably arranged on the assembly carrier (1), the sliding carrier (8) is provided with a sliding oil cylinder (9), and the sliding carrier (8) is driven by the sliding oil cylinder (9) to send a main spring (102) loaded on the sliding carrier (8) into a shell of the constant force spring support and hanger (100) for assembly.
4. A method of assembling a constant force spring hanger in a semi-automatic assembly platform for a high precision constant force spring hanger as claimed in claim 3 comprising the steps of:
s1: firstly, hoisting a shell of a constant force spring support and hanger (100) to the central position of an assembly carrier (1), and positioning the position;
s2: then, the auxiliary springs (101) at two sides are sequentially arranged in the shell of the constant force spring support and hanger (100);
s3: then, simultaneously starting screw rod driving mechanisms (205) of the two groups of auxiliary spring compression devices (2), and driving a sliding carrying plate (204) and a hydraulic oil cylinder (202) on the sliding carrying plate (204) to move towards the direction of the constant force spring support and hanger (100);
s4: stopping until the threaded sleeve (4) at the front end of the pull rod (201) contacts with the screw (103) on the mounting plate of the auxiliary spring (101);
s5: then, starting a limiting oil cylinder of the limiting bracket (7), and driving the U-shaped bracket to be clamped in a limiting groove (2012) of the pull rod (201) upwards, so that the screwing motor (3) moves axially along with the pull rod (201);
s6: then the screwing motor (3) is started, and as the hexagonal sliding groove of the coupler (5) is spliced with the hexagonal connector (2011) of the pull rod (201), the pull rod (201) and the threaded sleeve (4) can be driven to rotate, and meanwhile, the screwing motor (3) and the pull rod (201) are driven to continuously move towards the direction of the constant force spring support and hanger (100) along the sliding rail along with the sliding block (6), so that the threaded sleeve (4) is in threaded connection with the screw (103) on the auxiliary spring (101) mounting plate;
s7: after the threaded sleeve (4) is in threaded connection with the screw (103), starting a limiting oil cylinder of the limiting bracket (7), driving the U-shaped bracket to be downward far away from the limiting groove (2012), and unlocking the axial movement function of the pull rod (201);
s8: then, starting a hollow sleeve piston rod of the hydraulic oil cylinder (202), and driving the pull rod (201) to move towards a direction away from the constant force spring support and hanger (100) by a stop ring (206) on the pull rod, so that the threaded sleeve (4) drives the screw rod (103) and the auxiliary spring to compress, and at the moment, only the hydraulic system is controlled to ensure that two groups of auxiliary spring compression devices (2) provide the same tensile force for auxiliary springs (101) on two sides;
s9: then, starting the sliding oil cylinder (9) to send the main spring (102) on the sliding carrier (8) into the shell of the constant force spring support and hanger (100) for assembly;
s10: then gradually releasing the tension of the hydraulic oil cylinder (202), gradually releasing the elasticity of the auxiliary spring (101) until the auxiliary spring is abutted against the main spring (102), repeating the steps of S5 and S6, starting the screwing motor (3) to rotate reversely, separating the threaded sleeve (4) from the screw (103), and finally starting the screw driving mechanism (205) to drive the sliding and transferring plate (204) to return to the original position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311686112.2A CN117381359B (en) | 2023-12-11 | 2023-12-11 | Semi-automatic assembly platform and assembly method for high-precision constant-force spring support and hanger |
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| CN202311686112.2A CN117381359B (en) | 2023-12-11 | 2023-12-11 | Semi-automatic assembly platform and assembly method for high-precision constant-force spring support and hanger |
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| CN117381359B true CN117381359B (en) | 2024-02-23 |
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| CN216066281U (en) * | 2021-07-06 | 2022-03-18 | 平高集团有限公司 | Spring press-fitting device for spring operating mechanism |
| CN114473466A (en) * | 2022-02-17 | 2022-05-13 | 成都飞机工业（集团）有限责任公司 | Automatic twisting machine for pull rod |
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| CN109648322A (en) * | 2019-01-05 | 2019-04-19 | 张超 | A kind of vibration damper complement assembly machine |
| CN110449867A (en) * | 2019-07-05 | 2019-11-15 | 四川中志融创科技有限公司 | A kind of absorber spring nut constant moment of force assembly system |
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| CN216066281U (en) * | 2021-07-06 | 2022-03-18 | 平高集团有限公司 | Spring press-fitting device for spring operating mechanism |
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| CN117381359A (en) | 2024-01-12 |
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