Automatic press-fitting device for crankshaft pump shaft check ring

Abstract

The application relates to an automatic press-fitting device for a crankshaft pump shaft check ring, which comprises a sorting mechanism, a feeding mechanism and a press-fitting mechanism; the sorting mechanism comprises a vibrating disc, a material collecting rod is arranged at a discharging port of the vibrating disc, the material collecting rod is inclined from the vibrating disc to the feeding mechanism, and a material level detection mechanism is arranged on the material collecting rod; the feeding mechanism comprises a fixing frame and a material guiding mechanism arranged in the fixing frame, wherein the fixing frame is arranged on an operation table, the material guiding mechanism comprises a feeding pipeline and a press-fitting station, and a feeding mechanism for conveying the check ring from the feeding pipeline to the press-fitting station is further arranged on the fixing frame; the press-fitting mechanism comprises a shaft mounting seat, a press-fitting cylinder is arranged on the shaft mounting seat, and the shaft mounting seat corresponds to the press-fitting station of the feeding mechanism. The application improves the accuracy and stability of check ring press-fitting, reduces the labor intensity, and improves the production automation level.

Description

Technical Field

[0001] This application relates to the field of crankshaft pump processing technology, and in particular to an automatic press-fitting device for crankshaft pump shaft retaining rings. Background Technology

[0002] During the machining of the rotor shaft for crankshaft pumps, a retaining ring needs to be inserted into the bearing area of ​​the rotor shaft to hold the bearing in place. Currently, a single retaining ring is manually inserted into the groove of the rotor shaft, which is inefficient for operators to press the retaining ring into place. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, this application provides an automatic press-fitting device for crankshaft pump shaft retaining rings.

[0004] The automatic press-fitting device for retaining rings for crankshaft pump shafts provided in this application adopts the following technical solution:

[0005] An automatic pressing device for retaining rings for crankshaft pump shafts includes a sorting mechanism, a feeding mechanism, and a pressing mechanism. The sorting mechanism includes a vibratory feeder with a collecting rod installed at the outlet of the vibratory feeder. The collecting rod is inclined from the vibratory feeder toward the feeding mechanism, and a material level detection mechanism is installed on the collecting rod. The feeding mechanism includes a fixed frame and a guiding mechanism installed inside the fixed frame. The fixed frame is installed on an operating table, and the guiding mechanism includes a feeding pipe and a pressing station. The fixed frame is also equipped with a feeding mechanism for conveying the retaining rings from the feeding pipe to the pressing station. The pressing mechanism includes a shaft mounting seat with a pressing cylinder installed on it, and the shaft mounting seat corresponds to the pressing station of the feeding mechanism.

[0006] By adopting the above technical solution, the vibratory feeder, as the core component of the sorting mechanism, arranges the disordered retaining rings in an orderly manner and transports them to the feeding mechanism via an inclined collecting rod. Simultaneously, the material level detection mechanism monitors the number of retaining rings on the collecting rod in real time to prevent material shortages or blockages. In the feeding mechanism, a fixed frame is installed on the operating table, and the feeding mechanism accurately delivers the retaining rings, which are located in the feeding pipe and transported by the vibratory feeder, to the pressing station. The shaft mounting seat of the pressing mechanism corresponds to the pressing station. When the retaining rings arrive at the pressing station, the pressing cylinder installed on the shaft mounting seat is activated, automatically pressing the retaining rings onto the bearing portion of the crankshaft pump rotor shaft, thus completing the automatic pressing of the retaining rings. Compared to manual operation, this significantly improves pressing efficiency.

[0007] Preferably, the feeding pipe passes through the fixed frame, wherein the collecting rod extends into the feeding pipe to transport the retaining ring into the feeding pipe.

[0008] Preferably, the feeding mechanism includes a feeding plate and a feeding cylinder for driving the feeding plate to move. The feeding plate has a strip-shaped limiting groove on the side near the feeding pipe that corresponds to the height of the discharge end of the feeding pipe. The strip-shaped limiting groove has a receiving groove for storing the retaining ring in the feeding pipe and conveying it there.

[0009] Preferably, the receiving groove corresponds to the feeding pipe in the initial state of the feeding cylinder, wherein the depth of the receiving groove is less than the thickness of the retaining ring, and the distance between the end of the collecting rod in the feeding pipe and the bottom of the receiving groove is between a single retaining ring and a double retaining ring.

[0010] Preferably, the distance between the bottom surface of the strip-shaped limiting groove and the end of the collecting rod is less than the thickness of the retaining ring, and a limiting strip is provided between the outlet of the feeding pipe and the pressing station, the thickness of the limiting strip being the same as the thickness of the collecting rod extending out of the outlet of the feeding pipe.

[0011] By adopting the above technical solution, the vibratory feeder arranges the retaining rings in an orderly manner, and then conveys them to the feeding pipe that runs through the fixed frame via an inclined collecting rod. When the feeding cylinder of the feeding mechanism is in its initial state, the receiving groove on the feeding plate corresponds to the feeding pipe. Since the depth of the receiving groove is less than the thickness of the retaining ring, and the distance between the end of the collecting rod and the bottom of the receiving groove is between that of a single retaining ring and a double-layer retaining ring, only one retaining ring can fall into the receiving groove. Subsequently, the feeding cylinder drives the feeding plate to move, and the retaining ring in the receiving groove moves with the feeding plate, while the other retaining rings in the feeding pipe do not move with it. When the receiving groove containing the retaining ring moves from the feeding pipe to the pressing station, the inner side of the retaining ring is limited by the limiting strip and will not fall out of the receiving groove, ensuring that the retaining ring is stably and accurately conveyed to the pressing station, preparing for the subsequent pressing operation of the pressing mechanism.

[0012] Preferably, the pressing station includes an annular seat and a drive mechanism on the back of the annular seat, wherein the inner diameter of the annular seat is larger than the outer diameter of the shaft, the end face of the annular seat is used for adsorption retaining rings, and the annular seat has a circumferential array of vacuum adsorption holes.

[0013] Preferably, the driving mechanism includes a fixed block and an adjusting block, wherein the fixed block is installed at the end of the pressing station, the outer end of the adjusting block is used to install an annular seat and is slidably installed in the pressing station, the adjusting block is driven by a driving cylinder, and the output shaft of the driving cylinder passes through the fixed block.

[0014] By adopting the above technical solution, when the retaining ring is conveyed to the pressing station by the feeding mechanism, the vacuum adsorption holes in the circumferential array on the end face of the annular seat are activated, and the drive mechanism starts to operate at the same time. The fixed block installed at the end of the pressing station provides stable support for the drive cylinder. The output shaft of the drive cylinder passes through the fixed block, and the drive adjustment block slides in the pressing station. The retaining ring is firmly adsorbed on the annular seat by the principle of vacuum adsorption. Since the inner diameter of the annular seat is larger than the outer diameter of the shaft, it provides space for subsequent pressing with the shaft, ensuring that the retaining ring adsorbed on the annular seat can move accurately to the corresponding position, thus providing a basis for the pressing of the retaining ring.

[0015] Preferably, a cylinder switch is installed at the bottom of the operating table, wherein the feeding cylinder is connected to the cylinder switch signal, and the cylinder switch can be a foot switch.

[0016] By adopting the above technical solution, the operator triggers a signal by stepping on the foot-operated cylinder switch installed at the bottom of the operating table. Since the feeding cylinder is connected to the cylinder switch signal, the signal is transmitted to the feeding cylinder. Upon receiving the signal, the feeding cylinder starts and drives the feeding plate to move, accurately delivering the retaining ring in the receiving groove to the pressing station, preparing for subsequent pressing operations. This foot-operated control method allows the operator's hands to focus on other operations such as workpiece placement and adjustment, effectively improving work efficiency and operational convenience.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. This application achieves automatic sorting and conveying of retaining rings through the vibrating plate and collecting rod of the sorting mechanism. The material level detection mechanism can monitor the material level in real time. In addition, the guiding and feeding mechanisms in the feeding mechanism cooperate with each other. The design of the feeding plate and the receiving trough can accurately control the conveying of individual retaining rings. The limit strip and other structures ensure stable transmission of retaining rings.

[0019] 2. In this application, the automatic adsorption of the retaining ring can be achieved through the press-fitting cylinder, annular seat and vacuum adsorption hole of the press-fitting mechanism, thereby cooperating with the press-fitting cylinder to achieve press-fitting. The drive mechanism is convenient for adjusting the position of the retaining ring, and the foot pedal cylinder switch is convenient for operation.

[0020] 3. This application replaces the manual clamping method of retaining rings with an integrated device, which significantly improves the efficiency of retaining ring pressing. At the same time, the reasonable structural design can accurately control the conveying and pressing process of retaining rings, ensuring the accuracy and stability of pressing, reducing the intensity of manual labor, and improving the level of production automation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic press-fitting device for retaining rings for crankshaft pump shafts.

[0022] Figure 2This is a schematic diagram of the rear structure of an automatic press-fitting device for retaining rings on crankshaft pump shafts.

[0023] Figure 3 This is a schematic diagram of the structure of an automatic press-fitting device for retaining rings of a crankshaft pump shaft where the feeding mechanism explodes from the whole unit.

[0024] Figure 4 yes Figure 3 Schematic diagram of the rear structure.

[0025] Explanation of reference numerals in the attached drawings: 1. Sorting mechanism; 11. Vibratory feeder; 12. Collecting rod; 13. Material level detection mechanism; 2. Feeding mechanism; 3. Fixing frame; 4. Guiding mechanism; 41. Feeding pipe; 42. Pressing station; 421. Annular seat; 4211. Vacuum adsorption hole; 422. Drive mechanism; 4221. Fixing block; 4222. Adjusting block; 4223. Drive cylinder; 43. Limiting strip; 5. Feeding mechanism; 51. Feeding plate; 511. Strip-shaped limiting groove; 512. Receiving groove; 52. Feeding cylinder; 6. Pressing mechanism; 61. Shaft mounting seat; 62. Pressing cylinder; 7. Operating table; 71. Cylinder switch. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses an automatic press-fitting device for crankshaft pump shaft retaining rings.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4An automatic pressing device for retaining rings for crankshaft pump shafts includes a sorting mechanism 1, a feeding mechanism 2, and a pressing mechanism 6. The sorting mechanism 1 includes a vibratory plate 11, and a collecting rod 12 is installed at the outlet of the vibratory plate 11. The collecting rod 12 is inclined from the vibratory plate 11 toward the feeding mechanism 2, and a material level detection mechanism 13 is installed on the collecting rod 12. The feeding mechanism 2 includes a fixed frame 3 and a guiding mechanism 4 installed inside the fixed frame 3. The fixed frame 3 is installed on an operating table 7, and the guiding mechanism 4 includes a feeding pipe 41 and a pressing station 42. The fixed frame 3 is also equipped with a feeding mechanism 5 for conveying the retaining rings from the feeding pipe 41 to the pressing station 42. The pressing mechanism 6 includes a shaft mounting seat 61, and a pressing cylinder 62 is installed on the shaft mounting seat 61. The shaft mounting seat 61 corresponds to the pressing station 42 of the feeding mechanism 2. The vibratory feeder 11, as the core component of the sorting mechanism 1, arranges the disordered retaining rings in an orderly manner and transports them to the feeding mechanism 2 via the inclined collecting rod 12. At the same time, the material level detection mechanism 13 monitors the number of retaining rings on the collecting rod 12 in real time to avoid material shortage or blockage. In the feeding mechanism 2, the fixed frame 3 is installed on the operating table 7, and the feeding mechanism 5 transports the retaining rings from the vibratory feeder 11 and located in the feeding pipe 41 to the pressing station 42 with precision. The shaft mounting seat 61 of the pressing mechanism 6 corresponds to the pressing station 42. When the retaining rings arrive at the pressing station 42, the pressing cylinder 62 installed on the shaft mounting seat 61 is activated to automatically press the retaining rings onto the bearing part of the crankshaft pump rotor shaft, thereby completing the automatic pressing of the retaining rings. Compared with manual operation, this greatly improves the pressing efficiency.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The feeding pipe 41 passes through the fixed frame 3, and the collecting rod 12 extends into the feeding pipe 41 to transport the retaining ring into the feeding pipe 41. The feeding mechanism 5 includes a feeding plate 51 and a feeding cylinder 52 that drives the feeding plate 51 to move. The feeding plate 51 has a strip-shaped limiting groove 511 on the side near the feeding pipe 41, which corresponds to the height of the discharge end of the feeding pipe 41. The strip-shaped limiting groove 511 has a receiving groove 512, which is used to store the retaining ring in the feeding pipe 41 and transport it there. In the initial state of the feeding cylinder 52, the receiving groove 512 corresponds to the feeding pipe 41. The depth of the receiving groove 512 is less than the thickness of the retaining ring, and the distance between the end of the collecting rod 12 in the feeding pipe 41 and the bottom of the receiving groove 512 is between that of a single retaining ring and a double-layer retaining ring. The distance between the bottom surface of the strip-shaped limiting groove 511 and the end of the collecting rod 12 is less than the thickness of the retaining ring, and a limiting strip 43 is provided between the outlet of the feeding pipe 41 and the pressing station 42. The thickness of the limiting strip 43 is the same as the thickness of the collecting rod 12 extending out of the outlet of the feeding pipe 41. After the vibrating plate 11 arranges the retaining rings in an orderly manner, the retaining rings are transported into the feeding pipe 41 that passes through the fixed frame 3 by the inclined collecting rod 12. When the feeding cylinder 52 of the feeding mechanism 5 is in the initial state, the receiving groove 512 on the feeding plate 51 corresponds to the feeding pipe 41. Since the depth of the receiving groove 512 is less than the thickness of the retaining ring, and the distance between the end of the collecting rod 12 and the bottom of the receiving groove 512 is between that of a single retaining ring and a double-layer retaining ring, only one retaining ring can fall into the receiving groove 512. Subsequently, the feeding cylinder 52 drives the feeding plate 51 to move, and the retaining ring in the receiving groove 512 moves with the feeding plate 51, while the other retaining rings in the feeding pipe 41 do not move with it. When the receiving groove 512 containing the retaining ring moves from the feeding pipe 41 to the pressing station 42, the inner side of the retaining ring is limited by the limiting strip 43 and will not fall out of the receiving groove 512, ensuring that the retaining ring is stably and accurately delivered to the pressing station 42, preparing for the subsequent pressing operation of the pressing mechanism 6.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The pressing station 42 includes an annular seat 421 and a drive mechanism 422 on the back of the annular seat 421. The inner diameter of the annular seat 421 is larger than the outer diameter of the shaft. A retaining ring is used for adsorption on the end face of the annular seat 421. Vacuum adsorption holes 4211 are arranged in a circumferential array on the annular seat 421. The drive mechanism 422 includes a fixed block 4221 and an adjusting block 4222. The fixed block 4221 is installed at the end of the pressing station 42. The outer end of the adjusting block 4222 is used to install the annular seat 421 and is slidably installed in the pressing station 42. The adjusting block 4222 is driven by a drive cylinder 4223, and the output shaft of the drive cylinder 4223 passes through the fixed block 4221. When the retaining ring is conveyed to the pressing station 42 by the feeding mechanism 5, the vacuum adsorption holes 4211 of the circumferential array on the end face of the annular seat 421 are activated, and the drive mechanism 422 is started to operate at the same time. The fixed block 4221 installed at the end of the pressing station 42 provides stable support for the drive cylinder 4223. The output shaft of the drive cylinder 4223 passes through the fixed block 4221, and the drive adjustment block 4222 slides in the pressing station 42. The retaining ring is firmly adsorbed on the annular seat 421 by the vacuum adsorption principle. Since the inner diameter of the annular seat 421 is larger than the outer diameter of the shaft, it provides space for subsequent pressing with the shaft, ensuring that the retaining ring adsorbed on the annular seat 421 can move accurately to the corresponding position, providing a basis for the pressing of the retaining ring.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A cylinder switch 71 is installed at the bottom of the operating table 7. The feeding cylinder 52 is connected to the cylinder switch 71 by signal. The cylinder switch 71 can be a foot switch. The operator triggers the signal by stepping on the foot switch 71 installed at the bottom of the operating table 7. Since the feeding cylinder 52 is connected to the cylinder switch 71 by signal, the signal is transmitted to the feeding cylinder 52. Upon receiving the signal, the feeding cylinder 52 starts and drives the feeding plate 51 to move, accurately conveying the retaining ring in the receiving groove 512 to the pressing station 42, preparing for the subsequent pressing operation. This foot-operated control method allows the operator's hands to focus on other operations such as workpiece placement and adjustment, effectively improving work efficiency and operational convenience.

[0032] Working principle: First, the sorting mechanism 1 starts, and the vibrating plate 11 begins to vibrate, automatically sorting the randomly piled retaining rings into an orderly arrangement. The rings are then conveyed to the feeding mechanism 2 via the inclined collecting rod 12. During this process, the material level detection mechanism 13 monitors the number of retaining rings on the collecting rod 12 in real time to prevent material shortages or overflows. When the retaining rings are conveyed to the feeding mechanism 2, the feeding pipe 41 receives them from the collecting rod 12. Because the distance between the end of the collecting rod 12 penetrating the feeding pipe 41 and the bottom of the receiving groove 512 of the feeding plate 51 in the feeding mechanism 5 is between that of a single retaining ring and a double-layer retaining ring, it ensures that only a single retaining ring can enter the receiving groove 512. At this time, the feeding cylinder 52 drives the feeding plate 51 to move, and the retaining ring in the receiving groove 512 is conveyed to the discharge end of the feeding pipe 41 along the strip-shaped limiting groove 511. Because the distance between the bottom surface of the strip-shaped limiting groove 511 and the end of the collecting rod 12 is less than the thickness of the retaining ring, and because of the restriction of the limiting strip 43 between the outlet of the feeding pipe 41 and the pressing station 42, the retaining ring is stably and orderly transported to the pressing station 42. When the retaining ring reaches the pressing station 42, the vacuum adsorption hole 4211 on the end face of the annular seat 421 of the pressing station 42 is activated to firmly adsorb the retaining ring. At the same time, the driving cylinder 4223 in the driving mechanism 422 drives the adjusting block 4222 to precisely adjust the position of the annular seat 421. Subsequently, the pressing cylinder 62 on the shaft mounting base 61 is activated, pushing the shaft placed on the shaft mounting base 61 towards the pressing station 42 for pressing, accurately pressing the adsorbed retaining ring into the groove of the crankshaft pump shaft, completing one retaining ring pressing operation. The operator can control the feeding cylinder 52 to operate via the foot pedal cylinder switch 71 on the control panel 7, realizing continuous automatic pressing of the retaining ring.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic press-fitting device for retaining rings for crankshaft pump shafts, characterized in that: It includes a sorting mechanism (1), a feeding mechanism (2), and a pressing mechanism (6); The sorting mechanism (1) includes a vibratory plate (11), and a material collecting rod (12) is installed at the outlet of the vibratory plate (11). The material collecting rod (12) is inclined from the vibratory plate (11) toward the feeding mechanism (2), and a material level detection mechanism (13) is installed on the material collecting rod (12). The feeding mechanism (2) includes a fixed frame (3) and a guiding mechanism (4) installed inside the fixed frame (3). The fixed frame (3) is installed on the operating table (7). The guiding mechanism (4) includes a feeding pipe (41) and a pressing station (42). The fixed frame (3) is also equipped with a feeding mechanism (5) for conveying the retaining ring from the feeding pipe (41) to the pressing station (42). The pressing mechanism (6) includes a shaft mounting seat (61). A pressing cylinder (62) is installed on the shaft mounting seat (61), and the shaft mounting seat (61) corresponds to the pressing station (42) of the feeding mechanism (2).

2. The automatic press-fitting device for crankshaft pump shaft retaining rings according to claim 1, characterized in that: The feeding pipe (41) passes through the fixed frame (3), wherein the collecting rod (12) extends into the feeding pipe (41) to transport the retaining ring into the feeding pipe (41).

3. The automatic press-fitting device for retaining rings for crankshaft pump shafts according to claim 2, characterized in that: The feeding mechanism (5) includes a feeding plate (51) and a feeding cylinder (52) for driving the feeding plate (51) to move. The feeding plate (51) has a strip-shaped limiting groove (511) on the side near the feeding pipe (41) that corresponds to the height of the discharge end of the feeding pipe (41). A receiving groove (512) is provided in the strip-shaped limiting groove (511). The receiving groove (512) is used to store the retaining ring in the feeding pipe (41) and transport it there.

4. The automatic press-fitting device for retaining rings for crankshaft pump shafts according to claim 3, characterized in that: The receiving groove (512) corresponds to the feeding pipe (41) in the initial state of the feeding cylinder (52), wherein the depth of the receiving groove (512) is less than the thickness of the retaining ring, and the distance between the end of the collecting rod (12) in the feeding pipe (41) and the bottom of the receiving groove (512) is between a single retaining ring and a double retaining ring.

5. The automatic press-fitting device for retaining rings for crankshaft pump shafts according to claim 4, characterized in that: The distance between the bottom surface of the strip-shaped limiting groove (511) and the end of the collecting rod (12) is less than the thickness of the retaining ring, and a limiting strip (43) is provided between the outlet of the feeding pipe (41) and the pressing station (42), the thickness of the limiting strip (43) is the same as the thickness of the collecting rod (12) extending out of the outlet of the feeding pipe (41).

6. The automatic press-fitting device for crankshaft pump shaft retaining rings according to claim 1, characterized in that: The press-fitting station (42) includes an annular seat (421) and a drive mechanism (422) on the back of the annular seat (421). The inner diameter of the annular seat (421) is larger than the outer diameter of the shaft. The end face of the annular seat (421) is used for adsorption retaining rings. Vacuum adsorption holes (4211) are arranged in a circumferential array on the annular seat (421).

7. The automatic press-fitting device for crankshaft pump shaft retaining rings according to claim 6, characterized in that: The drive mechanism (422) includes a fixed block (4221) and an adjusting block (4222). The fixed block (4221) is installed at the end of the press-fitting station (42). The outer end of the adjusting block (4222) is used to install the annular seat (421) and is slidably installed in the press-fitting station (42). The adjusting block (4222) is driven by a drive cylinder (4223), and the output shaft of the drive cylinder (4223) passes through the fixed block (4221).

8. The automatic press-fitting device for crankshaft pump shaft retaining rings according to claim 1, characterized in that: The bottom of the operating table (7) is equipped with a cylinder switch (71), wherein the feeding cylinder (52) is connected to the cylinder switch (71) by signal, and the cylinder switch (71) can be a foot switch.

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