A piston pin quick assembly fixture

Abstract

This utility model relates to the field of piston pin assembly technology, specifically to a piston pin quick assembly fixture, including a base plate, a base rod, a pin receiving seat, a piston seat, and a clamping device. It also includes a feeding device, which comprises a feeding plate, a stop seat, a push rod, a mounting ring, a connecting spring, a pushing assembly, and a supporting assembly. The feeding plate is mounted on the base plate via the supporting assembly. The stop seat is fixedly mounted on the feeding plate. The push rod is slidably mounted on the feeding plate. The mounting ring is fixedly mounted on the push rod. The two ends of the connecting spring are fixedly connected to the mounting ring and the feeding plate, respectively. The pushing assembly is mounted on the feeding plate. By arranging the piston pins on the feeding plate, the pushing assembly pushes the mounting ring, causing the mounting ring to move the push rod upwards and push a group of piston pins near the stop seat. This allows the piston pins to pass over the stop seat and enter the pin receiving groove along the feeding plate, ensuring the piston pins can enter the pin receiving groove sequentially and guaranteeing proper piston pin assembly.

Description

Technical Field

[0001] This utility model relates to the field of piston pin assembly technology, and in particular to a piston pin quick assembly fixture. Background Technology

[0002] The piston is a reciprocating component in the engine cylinder block and is one of the engine's most important components. Currently, the piston pin connecting the piston and connecting rod is primarily assembled manually. While manual assembly can generally meet the requirements for precision, it is inefficient.

[0003] Existing patent CN207139632U ​​describes a quick assembly fixture for piston pins. First, the piston pin is placed into a feeding trough, where it rolls down the inclined trough to the receiving pin section under gravity. A pneumatic switch controls the movement of a cylinder, which in turn moves the pressure head shaft. The piston pin is then fed into the piston through a hole in the pressure head shaft seat. During assembly, the piston is placed on the piston seat, and the guide shaft and pressure head shaft correspond to each other, providing guidance. This reduces manual intervention and improves the assembly efficiency of the piston pin.

[0004] However, in the process of using a piston pin quick assembly fixture with an existing patent, the device arranges the piston pins in the feeding groove so that the piston pins automatically fall into the receiving pin part. However, the falling of the piston pins is only affected by gravity, which makes it easy for multiple piston pins to fall into the receiving pin part, resulting in assembly errors of the piston pins. Utility Model Content

[0005] The purpose of this invention is to provide a quick assembly fixture for piston pins, which solves the problem that the aforementioned device arranges the piston pins in the feeding groove so that the piston pins automatically fall into the receiving part. However, the falling of the piston pins is only affected by gravity, which easily leads to multiple piston pins falling into the receiving part, resulting in assembly errors.

[0006] To achieve the above objectives, this utility model provides a quick assembly fixture for piston pins, including a base plate, a base rod, a pin receiving seat, a piston seat, and a clamping device. The base rod is fixedly mounted on the base plate, the pin receiving seat is fixedly mounted on the base plate, the pin receiving seat has a pin receiving groove, and the pin receiving seat also has a through hole. An assembly cylinder is also provided on the side of the base plate near the pin receiving seat, the piston seat is fixedly mounted on the side of the base plate near the pin receiving seat, and the clamping device is mounted on the base plate. The fixture also includes a feeding device, which includes a feeding plate, a stop seat, a push rod, a mounting ring, a connecting spring, a pushing assembly, and a support assembly. The feeding plate is mounted on the base plate via the support assembly and is close to the pin receiving seat. The stop seat is fixedly mounted on the feeding plate, the push rod is slidably mounted on the feeding plate, the mounting ring is fixedly mounted on the push rod, and the two ends of the connecting spring are respectively fixedly connected to the mounting ring and the feeding plate. The pushing assembly is mounted on the feeding plate.

[0007] The pushing component includes a first magnetic ring, a second magnetic ring, and a rotating component. The first magnetic ring is fixedly mounted on the mounting ring, and the second magnetic ring is rotatably mounted on the feed plate via the rotating component.

[0008] The rotating component includes a rotating ring, a rotating shaft, and a mounting bracket. The mounting bracket is fixedly mounted on the feed plate. The rotating shaft is rotatably mounted on the mounting bracket. The rotating ring is fixedly mounted on the rotating shaft and is fixedly connected to the second magnetic ring.

[0009] The support assembly includes a first support rod and a second support rod, both of which are fixedly mounted on the base plate. The first support rod and the second support rod are respectively fixedly connected to both sides of the feed plate.

[0010] The clamping device includes a clamping arc plate and a mounting base. The mounting base is fixedly mounted on the base plate, and a clamping cylinder is provided on the mounting base. The clamping arc plate is fixedly mounted on the output end of the clamping cylinder.

[0011] This utility model discloses a quick-assembly jig for piston pins. In use, piston pins are arranged sequentially on the feed plate. The bottommost piston pin is blocked by the stop seat. During assembly, the piston is placed in the piston seat, and the clamping cylinder pushes the clamping arc plate, causing the clamping arc plates on both sides to move towards each other and clamp the piston. Then, a connecting rod is installed inside the piston. Subsequently, an external motor drives the rotating shaft to rotate, causing the rotating shaft to rotate the rotating ring 180 degrees. At this time, the magnetic poles on opposite sides of the second magnetic ring and the first magnetic ring are the same, and the first magnetic ring is repelled, thus pushing the mounting ring upwards. The mounting ring pushes the push rod upward, which in turn pushes the bottom piston pin, causing it to pass over the stop seat and slide down the feed plate, finally falling into the pin groove on the pin holder. Then, the assembly cylinder is activated, causing its output to push the piston pin in the pin groove, allowing it to pass through the through hole and be installed in the piston and connecting rod. The stop seat blocks the piston pin, and the pushing assembly pushes the push rod, causing it to push the piston pin over the stop seat, thus ensuring the piston pins enter the pin groove sequentially and that the assembly is normal. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of a piston pin quick assembly fixture according to this utility model.

[0014] Figure 2 This is a schematic diagram of the feeding device of this utility model.

[0015] In the diagram: 101-base plate, 102-base rod, 103-receiving pin seat, 104-piston seat, 105-receiving pin groove, 106-through hole, 107-assembly cylinder, 108-feed plate, 109-stop seat, 110-push rod, 111-mounting ring, 112-connecting spring, 113-first magnetic ring, 114-second magnetic ring, 115-rotating ring, 116-rotating shaft, 117-mounting bracket, 118-first support rod, 119-second support rod, 120-clamping arc plate, 121-mounting seat, 122-clamping cylinder. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The embodiment of this application is as follows:

[0018] Please see Figure 1-2 , Figure 1 This is a schematic diagram of the overall structure of a piston pin quick assembly fixture according to this utility model. Figure 2 This is a schematic diagram of the feeding device of this utility model.

[0019] This utility model provides a quick assembly fixture for piston pins, including a base plate 101, a base rod 102, a pin receiving seat 103, a piston seat 104, and a clamping device. It also includes a feeding device comprising a feeding plate 108, a stop seat 109, a push rod 110, a mounting ring 111, a connecting spring 112, a pushing assembly, and a supporting assembly. The pushing assembly includes a first magnetic ring 113, a second magnetic ring 114, and a rotating component. The rotating component includes a rotating ring 115, a rotating shaft 116, and a mounting bracket 117. The supporting assembly includes a first support rod 118 and a second support rod 119. The clamping device includes a clamping arc plate 120 and a mounting seat 121. This solution solves the problem of the aforementioned device, which arranges piston pins in a feeding groove so that the piston pins automatically fall into the pin receiving part. However, the piston pins' descent is only subject to gravity, which easily leads to multiple piston pins falling into the pin receiving part, causing assembly errors.

[0020] In this embodiment, the pushing component drives the push rod 110 to push a group of piston pins near the stop seat 109, so that the piston pins pass over the stop seat 109 and enter the pin receiving groove 105 along the feed plate 108, thereby enabling the piston pins to enter the pin receiving groove 105 in sequence, ensuring the normal assembly of the piston pins.

[0021] The feed plate 108 is mounted on the base plate 101 via the support assembly and is close to the receiving pin seat 103. The stop seat 109 is fixedly mounted on the feed plate 108. The push rod 110 is slidably mounted on the feed plate 108. The mounting ring 111 is fixedly mounted on the push rod 110. The two ends of the connecting spring 112 are fixedly connected to the mounting ring 111 and the feed plate 108, respectively. The pushing assembly is mounted on the feed plate 108. Baffles are provided on both sides of the feed plate 108. The top end of the stop seat 109 has an arc structure. The push rod 110 is located directly below the piston pin near the stop seat 109. The mounting ring 111 is welded to the bottom end of the push rod 110. The connecting spring 112 coincides with the axis of the push rod 110. The support assembly can support the feed plate 108. By arranging the piston pins on the feed plate 108, the pushing assembly pushes the mounting ring 111, causing the mounting ring 111 to drive the push rod 110 upward and push a group of piston pins near the stop seat 109. This causes the piston pins to pass over the stop seat 109 and enter the pin receiving groove 105 along the feed plate 108, thereby ensuring that the piston pins can enter the pin receiving groove 105 in sequence and that the piston pins are properly assembled.

[0022] Secondly, the first magnetic ring 113 is fixedly mounted on the mounting ring 111; the second magnetic ring 114 is rotatably mounted on the feed plate 108 via the rotating member. The magnetic poles of the first magnetic ring 113 and the second magnetic ring 114 are opposite at their initial positions. The rotating member drives the second magnetic ring 114 to rotate 180 degrees, so that the magnetic poles of the opposite side of the second magnetic ring 114 and the first magnetic ring 113 are the same. The second magnetic ring 114 then repels the first magnetic ring 113, while the first magnetic ring 113 pushes the mounting ring 111.

[0023] Furthermore, the mounting bracket 117 is fixedly mounted on the feed plate 108; the rotating shaft 116 is rotatably mounted on the mounting bracket 117; the rotating ring 115 is fixedly mounted on the rotating shaft 116 and fixedly connected to the second magnetic ring 114; the mounting bracket 117 is welded to the bottom of the feed plate 108; the rotating shaft 116 is driven by an external motor; the rotating ring 115 is welded to the rotating shaft 116; the second magnetic ring 114 is disposed inside the rotating ring 115; the rotating shaft 116 drives the rotating ring 115 to rotate, thereby causing the rotating ring 115 to drive the second magnetic ring 114 to rotate.

[0024] Furthermore, both the first support rod 118 and the second support rod 119 are fixedly installed on the base plate 101. The first support rod 118 and the second support rod 119 are respectively fixedly connected to both sides of the feed plate 108. The first support rod 118 is set vertically, while the second support rod 119 is set at an angle. Through the cooperation of the first support rod 118 and the second support rod 119, the support effect of the feed plate 108 is achieved.

[0025] Finally, the mounting base 121 is fixedly mounted on the base plate 101. The mounting base 121 is provided with a clamping cylinder 122. The clamping arc plate 120 is fixedly mounted on the output end of the clamping cylinder 122. The mounting base 121 is welded to both sides of the piston seat 104. The clamping cylinder 122 is fixed to the mounting base 121 with screws. The clamping arc plate 120 is welded to the output end of the clamping cylinder 122. By driving the clamping arc plate 120 through the clamping cylinder 122, the clamping arc plates 120 on both sides fix the piston in the piston seat 104.

[0026] In this embodiment, during use, piston pins are arranged sequentially on the feed plate 108. The bottommost piston pin is blocked by the stop seat 109. During assembly, the piston is placed inside the piston seat 104, and the clamping arc plate 120 is pushed by the clamping cylinder 122, causing the clamping arc plates 120 on both sides to move towards each other and clamp the piston. Then, the connecting rod is installed inside the piston. Subsequently, an external motor drives the rotating shaft 116 to rotate, causing the rotating shaft 116 to rotate the rotating ring 115 180 degrees. At this time, the magnetic poles on opposite sides of the second magnetic ring 114 and the first magnetic ring 113 are the same. The first magnetic ring 113 is repelled, thus pushing the mounting ring 111 upwards. The mounting ring 111 then pushes the connecting rod... The push rod 110 moves upward, pushing the bottom piston pin so that it passes over the stop seat 109 and slides down the feed plate 108, finally falling into the pin groove 105 on the pin receiving seat 103. Then, the assembly cylinder 107 is activated, so that the output end of the assembly cylinder 107 pushes the piston pin in the pin groove 105, so that the piston pin passes through the through hole 106 and is installed in the piston and connecting rod. Thus, the stop seat 109 blocks the piston pin, and the push assembly pushes the push rod 110, so that the push rod 110 pushes the piston pin over the stop seat 109, so that the piston pin can enter the pin groove 105 in sequence, ensuring the normal assembly of the piston pin.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A quick-assembly jig for piston pins, comprising a base plate, a base rod, a pin receiving seat, a piston seat, and a clamping device, wherein the base rod is fixedly mounted on the base plate, the pin receiving seat is fixedly mounted on the base plate, the pin receiving seat has a pin receiving groove, the pin receiving seat also has a through hole, an assembly cylinder is provided on the side of the base plate near the pin receiving seat, the piston seat is fixedly mounted on the side of the base plate near the pin receiving seat, and the clamping device is mounted on the base plate, characterized in that... It also includes a feeding device; The feeding device includes a feeding plate, a stop seat, a push rod, a mounting ring, a connecting spring, a pushing assembly, and a support assembly. The feeding plate is mounted on the base plate via the support assembly and is close to the receiving pin seat. The stop seat is fixedly mounted on the feeding plate. The push rod is slidably mounted on the feeding plate. The mounting ring is fixedly mounted on the push rod. The two ends of the connecting spring are fixedly connected to the mounting ring and the feeding plate, respectively. The pushing assembly is mounted on the feeding plate.

2. The piston pin quick assembly fixture as described in claim 1, characterized in that, The pushing assembly includes a first magnetic ring, a second magnetic ring, and a rotating component. The first magnetic ring is fixedly mounted on the mounting ring, and the second magnetic ring is rotatably mounted on the feed plate via the rotating component.

3. The piston pin quick assembly fixture as described in claim 2, characterized in that, The rotating component includes a rotating ring, a rotating shaft, and a mounting bracket. The mounting bracket is fixedly mounted on the feed plate. The rotating shaft is rotatably mounted on the mounting bracket. The rotating ring is fixedly mounted on the rotating shaft and is fixedly connected to the second magnetic ring.

4. The piston pin quick assembly fixture as described in claim 1, characterized in that, The support assembly includes a first support rod and a second support rod, both of which are fixedly mounted on the base plate. The first support rod and the second support rod are respectively fixedly connected to both sides of the feed plate.

5. The piston pin quick assembly fixture as described in claim 1, characterized in that, The clamping device includes a clamping arc plate and a mounting base. The mounting base is fixedly mounted on the base plate, and a clamping cylinder is provided on the mounting base. The clamping arc plate is fixedly mounted on the output end of the clamping cylinder.

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