Bowl-shaped plug automatic press-fitting machine and bowl-shaped plug press-fitting method

Abstract

The present invention discloses an automatic pressing machine for bowl-shaped plugs and a method for pressing bowl-shaped plugs, which can improve production efficiency, improve the positioning stability of parts to be assembled, and improve installation accuracy. The pressing machine includes a first base, a clamping part, a loading part, and a pressing part distributed on the first base. The clamping part includes a main positioning tool, a first auxiliary positioning tool, and a second auxiliary positioning tool; the main positioning tool is used to rotationally position the parts to be assembled, the first auxiliary positioning tool is used to press the middle part of the side end of the parts to be assembled, and the second auxiliary positioning tool is used to press the bottom end of the turntable; the loading part includes a bowl-shaped plug feeding mechanism, and the bowl-shaped plug feeding mechanism is used to transmit the bowl-shaped plug; the pressing part is used to grab the bowl-shaped plug of the loading part and press the bowl-shaped plug and the parts to be assembled. The above-mentioned automatic pressing machine for bowl-shaped plugs is used to automatically press the bowl-shaped plug.

Description

Technical Field

[0001] The present invention relates to the technical field of bowl-shaped plug assembly equipment, in particular to an automatic pressing machine for bowl-shaped plugs. Background Art

[0002] Bowl plugs are commonly used in motors or engine cylinder heads. They form an interference fit with the plug hole on the motor housing, sealing the process hole and sealing liquids such as cooling water or engine oil. Traditionally, bowl plugs are assembled manually with motor plug holes. A worker holds a pressure rod, places the bowl plug over the rod head, and uses the rod to press the bowl plug against the outer end of the bowl plug mounting hole. The worker then grips the middle of the rod and, guided by the bowl plug mounting hole, presses the bowl plug into the mounting hole. However, this assembly method is time-consuming and labor-intensive, significantly impacting production efficiency.

[0003] The prior art provides a bowl-shaped plug press-fitting device for a motor housing, which can realize the automatic assembly of the bowl-shaped plug and the motor housing, and can solve the above-mentioned problems of time-consuming and labor-intensive manual assembly and low production efficiency. The motor housing bowl-shaped plug press-fitting device includes a clamping part, a pressing part, a plug clamp, a feeding part, etc., wherein the clamping part is used to clamp the motor housing, and the clamping part includes a rotating motor fixed to the bottom surface of a first base, the output end of the rotating motor is fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the first base, and the end of the connecting shaft is fixedly connected to a turntable, on which a fixture for installing the motor housing is installed. When the bowl-shaped plug is assembled with the motor housing, the pressing part pushes out the bowl-shaped plug and presses the bowl-shaped plug into the plug hole from one side of the motor housing to realize the automatic pressing of the bowl-shaped plug. However, in this pressing method, the fixation of the turntable completely relies on the force of the rotating motor shaft. When the pressing part presses the bowl-shaped plug, the turntable is very likely to produce a slight rotation due to the pressure, resulting in inaccurate correspondence between the bowl-shaped plug and the part to be assembled and reduced installation accuracy. Summary of the Invention

[0004] In response to the above-mentioned technical problems existing in the prior art, the present invention provides an automatic pressing machine for a bowl-shaped plug, which can automatically press the bowl-shaped plug into the plug hole of the part to be assembled, saving time and effort, improving production efficiency, and at the same time greatly improving the positioning stability of the parts to be assembled and improving installation accuracy.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A bowl-shaped plug automatic press-fitting machine, comprising a first base, a clamping portion, a loading portion, and a press-fitting portion distributed on the first base, characterized in that:

[0007] The clamping part includes a main positioning tool, a first auxiliary positioning tool located on one side of the main positioning tool, and a second auxiliary positioning tool located below the main positioning tool;

[0008] The main positioning tooling includes a turntable rotatably mounted on the first base and a turntable driving device for driving the turntable to rotate, wherein the turntable is used to clamp and position the parts to be assembled;

[0009] The first auxiliary positioning tool includes a first push plate, a first push plate driving device for driving the first push plate to move horizontally, and a first pressing block installed at one end of the first push plate, wherein the pressing head of the first pressing block is vertically corresponding to the middle of the part to be assembled installed on one side of the turntable;

[0010] The second auxiliary positioning tool includes a second push plate, a second push plate driving device that drives the second push plate to move laterally, a wedge-shaped portion provided at one side end of the second push plate, and a second pressure block, wherein the bottom end of the second pressure block abuts against the top end of the wedge-shaped portion, and the top end of one side of the second pressure block is provided with an arc-shaped groove matching the shape of the outer edge surface of the turntable, and the arc-shaped groove corresponds to and is adjacent to the outer edge surface of the bottom end of the turntable;

[0011] The feeding portion includes a bowl-shaped plug feeding mechanism, which is located on one side of the clamping portion and is used to transfer the bowl-shaped plug;

[0012] The pressing part is used to grab the bowl-shaped plug of the loading part and press the bowl-shaped plug and the part to be assembled. The pressing part includes a pressing rod and a pressing rod driving device for driving the pressing rod to rise and fall. The pressing rod is located above the main positioning tooling, and the clamping claw of the pressing rod corresponds to the side end of the mounting groove of the turntable.

[0013] It is further characterized in that

[0014] The turntable is circular, and a mounting portion for mounting the parts to be assembled is provided in the middle of the turntable. A plurality of mounting grooves are provided on the outer edge of the turntable, and the mounting grooves are circumferentially spaced along the outer edge of the turntable. A first notch is provided on one side end of the mounting groove, and the first notch is located on the outer edge of the turntable. The plug hole of the part to be assembled is located in the mounting groove. When the bowl-shaped plug is press-fitted onto the part to be assembled, the bowl-shaped plug corresponds to the first notch.

[0015] The main positioning fixture also includes a first bracket and a bearing seat fixed to the first base. The turntable driving device is a first servo motor. The body of the first servo motor is fixed to the first bracket. The power shaft of the first servo motor passes through the bearing seat and is rotatably connected to the bearing seat. One side end of the turntable is fixed to the power shaft.

[0016] The first auxiliary positioning tool further includes a second bracket fixed to the first base, the first push plate driving device is a first cylinder, the cylinder body of the first cylinder is fixed to the second bracket, one side end of the first push plate is fixed to the piston rod of the first cylinder, and the non-pressing head end of the first pressure block is fixed to the other side end of the first push plate;

[0017] The second push plate driving device is a second cylinder, and the cylinder body of the second cylinder is fixed to the first base;

[0018] The second auxiliary positioning fixture further includes a first guide block and a second guide block fixed to the first base, a first guide hole being formed in the middle of the first guide block, a second guide groove and a third guide groove perpendicular to the second guide groove being formed in the middle of the second guide block, the first guide hole corresponding to the second guide groove, the second pressure block being slidably mounted in the third guide groove, one end of the second push plate being fixed to the piston rod of the second cylinder, the other end of the second push plate passing through the first guide hole, and a wedge-shaped portion of the other end extending to below the second pressure block in the second guide groove;

[0019] It also includes a workbench, the first base is mounted on the workbench via an adjustment mechanism, the adjustment mechanism includes a first base driving device, at least two rows of first guide rails spaced apart in parallel, a first slider slidably mounted on the top of the first guide rail, the top of the first slider being fixedly connected to the bottom of the first base, the first base driving device includes a first transverse moving module, a second slider slidably mounted on the second guide rail of the first transverse moving module, the top of the second slider being fixedly connected to the bottom of the first base, a second servo motor in the first transverse moving module drives the second slider to drive the first base to slide on the second guide rail;

[0020] It also includes a third bracket fixed to the first base, and an electromagnetic ring installed on the third bracket, wherein the third bracket is located between the first bracket and the turntable, and the electromagnetic ring is installed on the power shaft of the first servo motor;

[0021] The loading part also includes a second base and a vibrating screen installed on the second base, the bowl-shaped plug feeding mechanism includes a conveying track and a conveying mechanism perpendicular to the conveying track, the feed port of the conveying track is connected with the outlet end of the vibrating screen, the conveying mechanism includes a third push plate, a positioning groove provided on one side of the third push plate, a third push plate driving device for driving the third push plate to move, and a material blocking mechanism, a second notch is opened on one side of the positioning groove, the material blocking mechanism includes a material blocking plate and a material blocking plate driving device for driving the material blocking plate to move, and when the conveying mechanism receives the material, the second notch corresponds to the discharge port of the conveying track;

[0022] The locking plate is fixed to the locking plate, and the locking plate is locked to the locking plate, so that the locking plate is locked.

[0023] The pressing part also includes a mounting seat, one end of the pressing rod is installed on the bottom end of the mounting seat, the top end of the mounting seat is fixedly connected to the piston rod of the lifting cylinder, and two parallel guide rods are installed on the top end of the mounting seat, one end of the guide rod is fixedly connected to the top end of the mounting seat, and the other end is slidably installed in the sleeve of the fourth bracket, the shape of the clamping claw of the pressing rod matches the shape of the bowl-shaped plug, and when the bowl-shaped plug is pressed into the plug hole of the part to be assembled, the clamping claw of the pressing rod corresponds to the first notch.

[0024] A method for press-fitting a bowl-shaped plug using the above-mentioned bowl-shaped plug automatic press-fitting machine is characterized in that the method comprises: S1, conveying the bowl-shaped plug to a position directly below the press-fitting portion through a feeding portion;

[0025] S2, grab the bowl-shaped plug through the pressing rod of the pressing part;

[0026] S3, the loading part returns;

[0027] S4. Install the parts to be assembled on the turntable of the clamping part so that the plug holes of the parts to be assembled are located in the installation grooves;

[0028] S5. The turntable driving device of the clamping part drives the turntable to rotate, and the turntable drives the parts to be assembled to rotate so that the plug hole corresponds to the pressing rod of the press-fitting part;

[0029] S6. The pressure rod driving device drives the pressure rod to descend, thereby press-fitting the bowl-shaped plug and the parts to be assembled.

[0030] It is further characterized in that

[0031] Furthermore, in step S1, when the conveying mechanism receives the material, the second notch corresponds to the discharge port of the conveying track;

[0032] When the conveying mechanism is feeding, S11, the third push plate driving device drives the third push plate to move toward the material blocking plate, so that the material blocking plate blocks the second notch of the positioning groove;

[0033] S12, the inner side of the third notch pushes the third slider to drive the baffle plate to slide along the third slide rail, the return spring is stretched, and the limit bolt and the baffle plate are driven to move to the bottom of the press-fitting part at the same time;

[0034] Furthermore, in step S2, the press-fitting part takes the material: the lifting cylinder drives the piston rod to drive the mounting seat and the press rod to descend, and grab the bowl-shaped plug in the positioning groove;

[0035] Furthermore, in step S3, after the conveying mechanism completes feeding, the third push plate driving device drives the third push plate to move in the opposite direction. During the movement, the other side end of the blocking plate stops moving due to the obstruction of the side edge of the third notch, the return spring is compressed, and the positioning groove of the third push plate moves to the discharge port of the conveying track and stops;

[0036] Furthermore, in step S4, during installation, the middle portion of the parts to be assembled is fixed to the middle portion of the turntable by bolts;

[0037] Furthermore, step S5 includes: S51, the driving shaft of the first servo motor drives the turntable to drive the part to be assembled to rotate a certain angle, so that the plug hole of the part to be assembled corresponds to the bowl-shaped plug, thereby achieving rotational positioning of the part to be assembled;

[0038] S52, using the first cylinder to push the first push plate to drive the first pressing block to move toward the part to be assembled, so that the pressing head of the first pressing block is pressed against the middle of the part to be assembled, thereby achieving one-time pressing of the part to be assembled and the turntable;

[0039] S53. The second push plate is pushed toward the second pressing block by the second cylinder. The wedge-shaped portion of the second push plate squeezes the second pressing block so that the second pressing block presses against the bottom end of the turntable, thereby achieving secondary compression of the turntable.

[0040] The above structure of the present invention can achieve the following beneficial effects: the bowl-shaped plug press machine is provided with a clamping part, a loading part and a pressing part. The clamping part is used to clamp the parts to be assembled, the loading part is used to load the bowl-shaped plug, and the pressing part is used to grab the bowl-shaped plug and press the bowl-shaped plug into the parts to be assembled, thereby realizing automatic assembly of the bowl-shaped plug and the parts to be assembled, saving time and labor and improving production efficiency.

[0041] In the clamping part, the first auxiliary positioning tool is helpful in preventing the turntable from producing lateral displacement, and the second auxiliary positioning tool is helpful in preventing the turntable from producing longitudinal displacement. Under the combined action of the first auxiliary positioning tool and the second auxiliary positioning tool, the positioning stability of the turntable and the parts to be assembled is effectively improved, and the problem of poor connection tightness between the bowl-shaped plug and the parts to be assembled caused by slight rotation of the turntable due to pressure is prevented, thereby improving the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding part of the present invention;

[0045] Figure 3 Schematic diagram of the three-dimensional structure of the feeding part conveying mechanism of the present invention (the third push plate is omitted);

[0046] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping part and the press-fitting part of the present invention;

[0047] Figure 5 Schematic diagram of the three-dimensional structure of the clamping part of the present invention (omitting the first guide block, the second guide block, the third bracket and the bearing seat);

[0048] Figure 6 A schematic diagram of the three-dimensional structure of the present invention from another angle;

[0049] Figure 7 Not the present invention Figure 2 A partial enlarged view of . DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or equipment.

[0052] In view of the problem that the manual assembly method of bowl-shaped plugs in the prior art is time-consuming and labor-intensive, which seriously affects the improvement of production efficiency, and the technical problem that the turntable rotates slightly due to the pressure during the press-fitting process, resulting in inaccurate correspondence between the bowl-shaped plug and the turntable and reduced installation accuracy, the following provides a specific embodiment of an automatic press-fitting machine for bowl-shaped plugs, for reference Figure 1 、 Figure 6 It includes a first base 1, a clamping part, a loading part, and a pressing part 4 distributed on the first base 1. The clamping part is used to clamp the parts to be assembled. In this embodiment, the parts to be assembled are motor housings. The loading part is located on one side of the clamping part and is used for loading the bowl-shaped plug. The pressing part 4 is located above the clamping part and is used for clamping the bowl-shaped plug and pressing the bowl-shaped plug into the parts to be assembled.

[0053] See Figure 2 The specific structure of the loading part is as follows: the loading part includes a second base 2, a vibrating screen 3 installed on the second base 2, and a bowl-shaped plug feeding mechanism 5. The second base 2 is fixed to the top of the workbench 10 and is arranged adjacent to the first base 1. The bowl-shaped plug feeding mechanism 5 is located on one side of the clamping part and is used to transmit the bowl-shaped plug; the bowl-shaped plug feeding mechanism 5 includes a conveying track 51 and a conveying mechanism perpendicular to the conveying track 51. The feed port of the conveying track is connected to the outlet end of the vibrating screen 3. Figure 3 The conveying mechanism includes a third push plate 52 slidably mounted on the slide rail 50, a positioning slot 53 provided on one side of the third push plate 52, a third push plate driving device 54 for driving the third push plate 52, and a material blocking mechanism. A second notch 55 is formed on one side of the positioning slot 53, and the second notch 55 corresponds to the discharge port of the conveying track 51. The provision of the positioning slot 53 improves the positioning accuracy of the bowl-shaped plug, facilitating the subsequent pressing rod of the pressing unit to accurately grasp the bowl-shaped plug.

[0054] See Figure 7 The material blocking mechanism includes a blocking plate 561, a fixing plate 563 fixed to the third push plate 52 and one end near the clamping portion, a third notch 564 opened at one end of the third push plate 52, a third slide rail 565 arranged below the third notch 564, a third slider 566 slidably mounted on the third slide rail 565, a limiting bolt 567 slidably mounted on the fixing plate 563, and a return spring 568 sleeved on the limiting bolt 567. The inner end of the blocking plate 561 is provided with a protrusion, the side end of the protrusion is fixed to the third slider 566, one side end of the blocking plate 561 is fixed to the limiting bolt 567, and the return spring 568 is sleeved on the bolt column of the limiting bolt 567 between the fixing plate 563 and the blocking plate 561. The other side end of the protrusion of the blocking plate 561 corresponds to the side edge 560 at the third notch 564. Before feeding, the return spring 568 is in a compressed state.

[0055] During material feeding, the third push plate drive 54 drives the third push plate 52 toward the material stopper 561, causing the material stopper 561 to block the second notch 55 of the positioning groove 53. The inner edge of the third notch 564 pushes the third slider 566, which causes the material stopper 561 to slide along the third slide rail 565. The return spring 568 is compressed, and the third push plate 52 then drives the limit bolt 567 and the material stopper 561 to move simultaneously below the press-fitting portion. In this embodiment, the third push plate drive 54 is a fourth pneumatic cylinder. The material stopper 561 cooperates with the second notch 55 of the third push plate 52 to effectively prevent the bowl-shaped plug from falling during conveying.

[0056] See Figure 4 、 Figure 5 The specific structure of the clamping part is as follows: the clamping part includes a main positioning tool 7, a first auxiliary positioning tool 8 located on one side of the main positioning tool 7, and a second auxiliary positioning tool 9 located below the main positioning tool. The main positioning tool 7 includes a turntable 71 rotatably mounted on the first base 1, a turntable driving device 72 for driving the turntable 71 to rotate, a first bracket 73 fixed to the first base 1, and a bearing seat 74. The turntable 71 is used to clamp and position the parts to be assembled; in this embodiment, the turntable 71 is circular, and a mounting portion for mounting the parts to be assembled is provided in the middle of the turntable 71. The outer edge of the turntable 71 is provided with a plurality of mounting grooves 75, and the mounting grooves 75 are distributed at intervals along the circumferential direction of the outer edge of the turntable. A first notch 76 is provided at one side end of the mounting groove 75. The first notch 76 is located on the outer edge surface of the turntable 71. The plug hole of the part to be assembled is located in the mounting groove 75. When the bowl-shaped plug is pressed onto the part to be assembled, one of the first notches 76 faces directly upward, and the bowl-shaped plug corresponds to the first notch 76. The provision of the first notch 76 facilitates press-fitting of the bowl-shaped plug into the plug hole of the part to be assembled.

[0057] In this embodiment, the turntable drive device 72 is a first servo motor. The body of the first servo motor is fixed to the first bracket 73. The power shaft of the first servo motor passes through the bearing seat 74 and is rotatably connected to the bearing seat 74. One end of the turntable 71 is fixed to the power shaft. To improve the service life of the power shaft of the first servo motor, the main positioning fixture also includes an electromagnetic ring 77. The electromagnetic ring 77 is mounted on the power shaft of the first servo motor and fixed to the top of the first base 1 via a third bracket 78. The third bracket 78 is located between the first bracket 73 and the bearing seat 74. The main positioning fixture 7 is used to rotationally position the parts to be assembled so that the plug holes of the parts to be assembled accurately correspond to the bowl-shaped plug clamped by the press-fitting portion.

[0058] The first auxiliary positioning fixture 8 includes a first push plate 81, a first push plate driving device 82 that drives the first push plate 81 to move laterally, a first pressure block 83 mounted on one side of the first push plate 81, and a second bracket 84 fixed to the first base 1. The pressure head of the first pressure block 83 corresponds to and is perpendicular to the middle of the part to be assembled mounted on one side of the turntable 71. In this embodiment, the first push plate driving device 82 is a first cylinder, the cylinder body of the first cylinder is fixed to the second bracket 84, one side of the first push plate 81 is fixedly connected to the piston rod of the first cylinder, and the non-pressure head end of the first pressure block 83 is fixed to the other side of the first push plate 81. The first auxiliary positioning fixture 8 is used to press the turntable 71 and the parts to be assembled once to prevent the turntable 71 and the parts to be assembled from rotating during the assembly process and affecting the assembly accuracy.

[0059] The second auxiliary positioning fixture 9 includes a second push plate 91, a second push plate driving device 92 that drives the second push plate 91 to move laterally, a wedge-shaped portion 93 provided on one side of the second push plate 91, a second pressure block 94, a first guide block 95 fixed to the first base 1, and a second guide block 96. The bottom end of the second pressure block 94 abuts against the top end of the wedge-shaped portion 93. The top end of one side of the second pressure block 94 is provided with an arc-shaped groove 97 that matches the shape of the outer edge surface of the turntable 71. The arc-shaped groove 97 corresponds to and is arranged adjacent to the bottom outer edge surface of the turntable 71. In this embodiment, the second push plate driving device 92 is a second cylinder, and the cylinder body of the second cylinder is fixed to the first base 1. The second auxiliary positioning fixture 9 is used to perform secondary compression on the turntable 71 to further prevent the turntable 71 and the parts to be assembled from rotating during the assembly process, thereby affecting the assembly accuracy.

[0060] In order to improve the displacement accuracy of the second push plate 91 and the second pressure block 94, a first guide hole is opened in the middle of the first guide block 95, and a second guide groove and a third guide groove vertically connected to the second guide groove are opened in the middle of the second guide block 96. The first guide hole corresponds to the second guide groove, and the second pressure block 94 is slidably installed in the third guide groove. One end of the second push plate 91 is fixed to the piston rod of the second cylinder, and the other end of the second push plate 91 passes through the first guide hole, and the wedge-shaped portion 93 at the other end extends to the bottom of the second pressure block 94 in the second guide groove. After the main positioning tool rotates and positions the parts to be assembled, the second push plate 91 is pushed by the second cylinder, and the second push plate pushes the second pressure block 94 to press against the bottom end of the turntable. The first guide hole, the second guide groove, and the third guide groove all have a guiding function, ensuring that the second pressure block 94 can be accurately and firmly pressed against the bottom end of the turntable.

[0061] See Figure 1The specific structure of the press-fitting section 4 is as follows: the press-fitting section includes a press rod 41, a press rod driving device 42 for driving the press rod 41 up and down, and a mounting seat 43. The press rod 41 is located above the main positioning fixture 7, and the clamping claws of the press rod 41 correspond to the side ends of the mounting slots of the turntable. The press rod 41 is used to grab the bowl-shaped plug of the loading section and press-fit the bowl-shaped plug to the part to be assembled. One end of the press rod 41 is mounted to the bottom end of the mounting seat 43, and the top end of the mounting seat 43 is fixed to the piston rod of the lifting cylinder. Two parallel guide rods 44 are installed on the top end of the mounting seat 43. One end of the guide rod 44 is fixed to the top end of the mounting seat 43, and the other end is slidably mounted in the shaft sleeve of the fourth bracket 40. The shape of the clamping claws of the press rod 41 matches the shape of the bowl-shaped plug. When the bowl-shaped plug is pressed into the plug hole of the part to be assembled, the clamping claws of the press rod 41 correspond to the first notch 76 at the top end of the turntable.

[0062] The bowl-shaped plug automatic press-fitting machine also includes a workbench 10 and a controller. In order to facilitate the position adjustment of the first base 1, the first base 1 is installed on the workbench 10 through the adjustment mechanism. Figure 1 、 Figure 6 The adjusting mechanism includes a first base driving device, at least two rows of first guide rails 102 distributed in parallel and spaced apart, and a first slider 103 slidably installed on the top of the first guide rail 102, the top of the first slider 103 is fixedly connected to the bottom end of the first base 1, the first base driving device includes a first transverse moving module, a second slider 105 slidably installed on the second guide rail 104 of the first transverse moving module, the top of the second slider 105 is fixedly connected to the bottom end of the first base 1. During actual installation and use, when it is necessary to adjust the distance between the first base 1 and the second base 2, that is, when it is necessary to adjust the distance between the conveying mechanism and the pressing part, the second servo motor in the first transverse moving module drives the second slider 105 to slide on the second guide rail 104, and the second slider 105 drives the first base 1 and the first slider 103 to slide on the first guide rail 102, so as to realize the distance adjustment between the first base 1 and the second base 2. The adjustment operation is convenient and quick, which improves the adjustment convenience.

[0063] The bowl-shaped plug automatic pressing machine mentioned above is used to press-fit the bowl-shaped plug, and the specific steps include: S1, conveying the bowl-shaped plug to the bottom of the pressing part through the loading part, specifically: when the conveying mechanism receives the material, the second notch on the third push plate corresponds to the discharge port of the conveying track, and after the bowl-shaped plug is conveyed to the positioning groove along the conveying track under the action of the vibrating screen, the controller controls the fourth cylinder to drive the material blocking plate to block the second notch of the positioning groove.

[0064] When the conveying mechanism is feeding, S11, the controller controls the third cylinder to drive the third push plate to move toward the material blocking plate, so that the material blocking plate blocks the second notch of the positioning groove;

[0065] S12. The inner side of the third notch pushes the third slider to drive the baffle plate to slide along the third slide rail. The reset spring is compressed, driving the limit bolt and the baffle plate to move to the bottom of the press-fitting part at the same time.

[0066] S2. The bowl-shaped plug is grasped by the clamping claws of the pressing rod of the press-fitting part (the clamping claws can adopt the existing clamping claws for grasping bowl-shaped plugs). Specifically, the controller controls the lifting cylinder to drive the piston rod to drive the mounting seat and the pressing rod to descend, grasping the bowl-shaped plug in the positioning groove;

[0067] S3, the feeding part returns. Specifically: after the conveying mechanism completes feeding, the controller controls the piston rod of the third cylinder to drive the third push plate to move in the opposite direction. During the movement, the other side end of the baffle plate stops moving due to the obstruction of the side edge of the third notch, and the return spring rebounds. The positioning groove of the third push plate moves to the discharge port of the conveying track and stops;

[0068] S4. Install the parts to be assembled on the turntable of the clamping part. During installation, make the plug hole of the parts to be assembled located in the installation groove, and fix the middle part of the parts to be assembled to the middle part of the turntable by bolts.

[0069] S5. The turntable drive device of the clamping unit drives the turntable to rotate, which in turn drives the part to be assembled so that one of the plug holes aligns with the pressing rod of the press-fitting unit. The first auxiliary positioning fixture and the second auxiliary positioning fixture are then used to press the rotated and positioned turntable. Specifically: S51. The drive shaft of the first servo motor drives the turntable to rotate the part to be assembled a certain angle so that the plug hole of the part to be assembled aligns with the bowl-shaped plug, thereby achieving rotational positioning of the part to be assembled.

[0070] S52. The first cylinder pushes the first push plate to drive the first pressing block to move toward the part to be assembled, so that the pressure head of the first pressing block is pressed against the middle of the part to be assembled, thereby achieving one-time pressing of the part to be assembled and the turntable, thereby effectively preventing the turntable from generating slight rotation due to the pressure.

[0071] S53: The second cylinder pushes the second push plate toward the second pressure block. The wedge-shaped portion of the second push plate squeezes the second pressure block, causing it to press against the bottom end of the turntable, achieving secondary compression of the turntable. During the press-fitting operation between the bowl-shaped plug and the part to be assembled, the second pressure block has an arc-shaped groove on its top that matches the outer edge of the turntable. Therefore, when the second pressure block presses against the bottom end of the turntable, it can prevent the turntable from rotating slightly due to the pressure.

[0072] S6. The pressure rod driving device drives the pressure rod to descend, and presses the bowl-shaped plug into the plug hole of the part to be assembled, which saves time and labor and improves production efficiency.

[0073] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or imagined by those skilled in the art without departing from the spirit and concept of the invention should be considered to be included in the scope of protection of the invention.

Claims

1. A bowl-shaped plug automatic press-fitting machine, comprising a first base, a clamping portion, a feeding portion, and a press-fitting portion distributed on the first base, characterized in that: The clamping part includes a main positioning tool, a first auxiliary positioning tool located on one side of the main positioning tool, and a second auxiliary positioning tool located below the main positioning tool; The main positioning tooling includes a turntable rotatably mounted on the first base and a turntable driving device for driving the turntable to rotate, wherein the turntable is used to clamp and position the parts to be assembled; The first auxiliary positioning tool includes a first push plate, a first push plate driving device for driving the first push plate to move horizontally, and a first pressing block installed at one end of the first push plate, wherein the pressing head of the first pressing block is vertically corresponding to the middle of the part to be assembled installed on one side of the turntable; The second auxiliary positioning tool includes a second push plate, a second push plate driving device that drives the second push plate to move laterally, a wedge-shaped portion provided at one side end of the second push plate, and a second pressure block, wherein the bottom end of the second pressure block abuts against the top end of the wedge-shaped portion, and the top end of one side of the second pressure block is provided with an arc-shaped groove matching the shape of the outer edge surface of the turntable, and the arc-shaped groove corresponds to and is adjacent to the outer edge surface of the bottom end of the turntable; The feeding portion includes a bowl-shaped plug feeding mechanism, which is located on one side of the clamping portion and is used to transfer the bowl-shaped plug; The pressing part is used to grab the bowl-shaped plug of the loading part and press the bowl-shaped plug and the part to be assembled. The pressing part includes a pressing rod and a pressing rod driving device for driving the pressing rod to rise and fall. The pressing rod is located above the main positioning tooling, and the clamping claw of the pressing rod corresponds to the side end of the mounting groove of the turntable.

2. The bowl-shaped plug automatic press-fitting machine according to claim 1, characterized in that: The turntable is circular, and a mounting portion for mounting parts to be assembled is provided in the middle of the turntable. A plurality of mounting grooves are provided on the outer edge of the turntable, and the mounting grooves are circumferentially spaced along the outer edge of the turntable. A first notch is provided on one side end of the mounting groove, and the first notch is located on the outer edge surface of the turntable. The plug hole of the part to be assembled is located in the mounting groove. When the bowl-shaped plug is pressed onto the part to be assembled, the bowl-shaped plug corresponds to the first notch.

3. The bowl-shaped plug automatic press-fitting machine according to claim 2, characterized in that: The main positioning tool also includes a first bracket and a bearing seat fixed to the first base. The turntable drive device is a first servo motor. The body of the first servo motor is fixed to the first bracket. The power shaft of the first servo motor passes through the bearing seat and is rotatably connected to the bearing seat. One side end of the turntable is fixed to the power shaft.

4. The bowl-shaped plug automatic press-fitting machine according to claim 3, characterized in that: The first auxiliary positioning tool also includes a second bracket fixed to the first base, the first push plate driving device is a first cylinder, the cylinder body of the first cylinder is fixed to the second bracket, one side end of the first push plate is fixedly connected to the piston rod of the first cylinder, and the non-pressure head end of the first pressure block is fixed to the other side end of the first push plate.

5. The bowl-shaped plug automatic press-fitting machine according to claim 4, characterized in that: The second auxiliary positioning tool also includes a first guide block and a second guide block fixed to the first base, a first guide hole is opened in the middle of the first guide block, a second guide groove and a third guide groove perpendicular to the second guide groove are opened in the middle of the second guide block, the first guide hole corresponds to the second guide groove, the second pressure block is slidably installed in the third guide groove, one end of the second push plate is fixed to the piston rod of the second cylinder, the other end of the second push plate passes through the first guide hole, and the wedge-shaped portion of the other end extends to the bottom of the second pressure block in the second guide groove.

6. The bowl-shaped plug automatic press-fitting machine according to claim 5, characterized in that: It also includes a workbench, and the first base is installed on the workbench through an adjusting mechanism. The adjusting mechanism includes a first base driving device, at least two rows of first guide rails distributed in parallel and spaced apart, and a first slider slidably installed on the top of the first guide rail, and the top of the first slider is fixedly connected to the bottom end of the first base. The first base driving device includes a first transverse moving module, and a second slider slidably installed on the second guide rail of the first transverse moving module, and the top of the second slider is fixedly connected to the bottom end of the first base. The second servo motor in the first transverse moving module drives the second slider to drive the first base to slide on the second guide rail.

7. The bowl-shaped plug automatic press-fitting machine according to claim 6, characterized in that: The loading part also includes a second base and a vibrating screen installed on the second base. The bowl-shaped plug feeding mechanism includes a conveying track and a conveying mechanism perpendicular to the conveying track. The feed port of the conveying track is connected to the outlet end of the vibrating screen. The conveying mechanism includes a third push plate, a positioning groove arranged on one side of the third push plate, a third push plate driving device for driving the third push plate to move, and a material blocking mechanism. A second notch is opened on one side of the positioning groove. The material blocking mechanism includes a material blocking plate and a material blocking plate driving device for driving the material blocking plate to move. When the conveying mechanism receives the material, the second notch corresponds to the discharge port of the conveying track.

8. The bowl-shaped plug automatic press-fitting machine according to claim 7, characterized in that: The cam is secured to the cam surface and is adapted to engage the third notch of the third sliding rail when the cam is engaged to the first and second sliding rails, and the cam is secured to the cam surface when the cam is engaged to the first and second sliding rails.

9. A method for press-fitting a bowl-shaped plug, characterized in that: The method uses the bowl-shaped plug automatic press-fitting machine according to any one of claims 5 to 8, and the method comprises: S1, conveying the bowl-shaped plug to the bottom of the press-fitting part through the feeding part; S2, grab the bowl-shaped plug through the pressing rod of the pressing part; S3, the loading part returns; S4. Install the parts to be assembled on the turntable of the clamping part so that the plug holes of the parts to be assembled are located in the installation grooves; S5. The turntable driving device of the clamping part drives the turntable to rotate, and the turntable drives the parts to be assembled to rotate so that the plug hole is aligned with the pressing rod of the press-fitting part. Then, the first auxiliary positioning tool is used to press the parts to be assembled and the turntable once, and the second auxiliary positioning tool is used to press the parts to be assembled and the turntable twice; S6. The pressure rod driving device drives the pressure rod to descend, thereby press-fitting the bowl-shaped plug and the parts to be assembled.

10. The method for press-fitting a bowl-shaped plug according to claim 9, characterized in that: Step S5 includes: S51, the drive shaft of the first servo motor drives the turntable to drive the parts to be assembled to rotate a certain angle so that the plug hole of the parts to be assembled corresponds to the bowl-shaped plug, thereby achieving rotational positioning of the parts to be assembled; S52, using the first cylinder to push the first push plate to drive the first pressing block to move toward the part to be assembled, so that the pressing head of the first pressing block is pressed against the middle of the part to be assembled, thereby achieving one-time pressing of the part to be assembled and the turntable; S53. The second push plate is pushed toward the second pressing block by the second cylinder. The wedge-shaped portion of the second push plate squeezes the second pressing block so that the second pressing block presses against the bottom end of the turntable, thereby achieving secondary compression of the turntable.

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