Piston circlip feeding and clamping device

Abstract

This invention discloses a piston retaining ring feeding and clamping device, comprising: a clamping device having a gripper capable of three-dimensional spatial movement and clamping a retaining ring; a vibratory feeding device including a unidirectional vibrator and a feeding shaft fixedly connected to the unidirectional vibrator, wherein a retaining ring is sleeved on the feeding shaft, and the end of the feeding shaft from which the retaining ring is located is the feeding end; the unidirectional vibrator is used to convey the retaining ring sleeved on the feeding shaft to the feeding end; and a separating device including a first support, a magnetic component disposed on one side of the first support, and a baffle disposed on the other side of the first support, wherein the magnetic component and the baffle are capable of vertical movement; the horizontal gap between the side of the magnetic component near the feeding shaft and the end face of the feeding end is less than the thickness of a retaining ring; this invention can automatically separate a single retaining ring.

Description

Technical Field

[0001] The invention relates to the technical field of pistons, and in particular to a piston retaining spring feeding and clamping device. Background Art

[0002] The piston pin is a cylindrical pin installed on the piston skirt. Its middle part passes through the small hole of the connecting rod and is used to connect the piston and the connecting rod. Its function is to transmit the gas force borne by the piston to the connecting rod, or to make the small end of the connecting rod drive the piston to move together. In order to reduce weight, the piston pin is generally made of high-quality alloy steel and made hollow; the piston retaining spring is installed in the piston pin hole to prevent the piston pin from axial movement.

[0003] In the prior art, the retaining ring is generally assembled into the piston manually. If the production efficiency is to be improved, automated assembly is required. The premise of automated assembly is to be able to separate a single retaining ring, which is difficult to achieve with the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a piston retaining spring feeding and clamping device capable of overcoming the above problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A piston retaining spring feeding and clamping device, characterized by comprising:

[0007] A clamping device having a clamping jaw capable of three-dimensional movement in space and capable of clamping a retaining spring;

[0008] A vibrating feeding device, comprising a unidirectional vibrator and a feeding shaft fixedly connected to the unidirectional vibrator, wherein a retaining spring is sleeved on the feeding shaft, and the end of the retaining spring on the feeding shaft away from the feeding end is the feeding end, and the unidirectional vibrator is used to transport the retaining spring sleeved on the feeding shaft to the feeding end;

[0009] The material dividing device comprises a first bracket, a magnetic member arranged on one side of the first bracket, and a baffle arranged on the other side of the first bracket, wherein the magnetic member and the baffle can move in the vertical direction; and a gap in the horizontal direction between a side of the magnetic member close to the feeding shaft and an end surface of the feeding end is less than the thickness of a retaining spring;

[0010] The magnetic member moves upward and can adsorb the outermost retaining spring to the surface of the magnetic member, and the baffle moves upward and can block the second retaining spring from moving toward the feeding end.

[0011] Furthermore, the clamping device includes a second bracket arranged on both sides of the feeding shaft, a transverse sliding module fixedly installed at the upper end of the bracket and arranged along the left and right direction, a first lifting cylinder fixedly connected to the working part of the transverse sliding module and arranged along the vertical direction, a pushing cylinder fixedly connected to the movable end of the first lifting cylinder and arranged along the front and rear direction, and a bidirectional cylinder fixedly connected to the movable end of the pushing cylinder. There are two clamps in total and they are respectively fixedly connected to the two working parts of the bidirectional cylinder.

[0012] Furthermore, a second lifting cylinder is fixedly provided on a side of the first bracket away from the feeding shaft, the second lifting cylinder is arranged along the vertical direction, and the magnetic member is fixedly connected to the movable end of the second lifting cylinder.

[0013] Furthermore, the magnetic member includes a stopper and a permanent magnet, a groove is formed on a side of the stopper away from the feeding shaft, and the permanent magnet is fixed in the groove.

[0014] Furthermore, sensor brackets are fixedly provided at both ends of the second bracket, and an infrared sensor capable of detecting whether a retaining spring exists is provided inside the sensor bracket, and infrared rays emitted by the infrared sensor are close to the surface of the block away from the permanent magnet.

[0015] Furthermore, a third lifting cylinder is fixedly provided on one side of the first bracket close to the feeding shaft, the third lifting cylinder is arranged in a vertical direction, and the baffle is fixedly connected to the movable end of the third lifting cylinder.

[0016] Furthermore, an arc-shaped notch is provided in the middle of the upper end of the baffle.

[0017] Furthermore, the cross-section of the feeding shaft is the shape remaining after a minor arc is cut off from a circle, and the feeding shaft has an arc surface and a flat surface, and a guide plate is fixedly provided on the flat surface; an L-shaped third bracket is fixedly provided on the upper surface of the unidirectional vibration machine, and the transverse plate of the third bracket is fixedly provided on the upper surface of the unidirectional vibration machine; a hanging plate is fixedly connected to the upper end of the vertical plate of the third bracket, and the hanging plate is horizontally arranged and the end thereof away from the third bracket is fixedly connected to the upper surface of the guide plate.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are:

[0019] 1. Through the cooperation of magnetic parts and baffles, a single circlip can be automatically separated and continuously fed under the action of a unidirectional vibrating machine, which can facilitate the subsequent automatic assembly of circlips. There is no need for manual feeding, which saves manpower and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a side view of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the magnetic component of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the magnetic member of the present invention when it is not raised;

[0024] Figure 5 It is a schematic diagram of the structure after the magnetic part of the present invention is raised;

[0025] Figure 6 It is a structural schematic diagram of a cross section of the feed shaft of the present invention;

[0026] Figure 7 is a schematic structural diagram of a third bracket of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the infrared sensor of the present invention. DETAILED DESCRIPTION

[0028] A preferred embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0029] The circlip is installed in the piston pin hole to prevent the piston pin from axial movement; the circlip is in a circular ring shape and has a circlip opening.

[0030] In the prior art, when assembling the retaining springs, the retaining springs need to be separated and assembled manually, which is inefficient and has poor precision.

[0031] like Figure 1-2 As shown, a piston retaining spring feeding and clamping device comprises:

[0032] A clamping device 200 having a clamping jaw 260 capable of three-dimensional movement in space and capable of clamping the retaining spring 10;

[0033] The vibrating feeding device 300 comprises a unidirectional vibrator 310 and a feeding shaft 320 fixedly connected to the unidirectional vibrator, wherein a retaining spring is sleeved on the feeding shaft, and the end of the retaining spring on the feeding shaft away from the feeding end is the feeding end, and the unidirectional vibrator is used to transport the retaining spring sleeved on the feeding shaft to the feeding end;

[0034] The material distribution device 400 comprises a first bracket 410, a magnetic member 440 disposed on one side of the first bracket, and a baffle 450 disposed on the other side of the first bracket, wherein the magnetic member and the baffle can move in the vertical direction; a horizontal gap between a side of the magnetic member close to the feeding shaft and an end surface of the feeding end is less than the thickness of a retaining spring;

[0035] The magnetic member moves upward and can adsorb the outermost retaining spring to the surface of the magnetic member, and the baffle moves upward and can block the second retaining spring from moving toward the feeding end.

[0036] The working principle of the present invention is as follows: the surface of the magnetic piece close to the side of the feeding shaft is the positioning surface, and the magnetic piece moves upward to adsorb the outermost retaining spring to the positioning surface of the magnetic piece. Since the gap between the positioning surface and the end face of the feeding end is less than the thickness of a retaining spring, the retaining spring is not completely separated from the axial positioning function of the feeding shaft at this time. The double positioning function of the positioning surface and the feeding shaft can prevent the retaining spring from falling after being adsorbed by the magnetic piece.

[0037] When the magnetic part attracts the outermost retaining spring to the positioning surface, a gap is generated between the outermost retaining spring and the second retaining spring. Due to the conveying effect of the unidirectional vibrating machine, the second retaining spring will move toward the feeding end, and the above gap will gradually shrink. When the second retaining spring contacts the outermost retaining spring again, the clamping claw will easily clamp the two retaining springs together, making it impossible to complete the material separation work of a single retaining spring.

[0038] In the axial direction of the feed shaft, before the second retaining spring passes over the baffle, the baffle is raised to prevent the second retaining spring from continuing to move toward the feed end. At this time, there is a certain gap between the outermost retaining spring and the second retaining spring, and the clamping jaws capable of three-dimensional movement in space can clamp the outermost retaining spring, preparing to transport the retaining spring to the next process.

[0039] In order to avoid the movement interference of the moving retaining spring with other components during transportation, the magnetic part needs to move downward, and then the clamping jaw moves forward, so that the retaining spring is separated from the axial positioning of the feed shaft, and then the retaining spring is transported to other processes.

[0040] Among them, the outermost retaining spring refers to the first retaining spring viewed from the feeding end side.

[0041] The second retaining spring is a retaining spring adjacent to the outermost retaining spring.

[0042] The feeding and clamping device further comprises a bottom plate 100, and the clamping device, the vibrating feeding device and the material dividing device are all fixedly arranged on the upper surface of the bottom plate.

[0043] The unidirectional vibrator can make the vibrated object move in a specific direction. In this embodiment, the unidirectional vibrator can make the retaining spring on the feeding shaft move slowly and continuously toward the feeding end, thereby realizing the feeding of the retaining spring.

[0044] Through the cooperation of magnetic parts and baffles, single circlips can be automatically separated, and the circlips can be continuously fed under the action of the unidirectional vibrating machine, which can facilitate the automatic assembly of circlips and eliminate the need for manual feeding, saving manpower and improving production efficiency.

[0045] like Figure 1-2 As shown, the clamping device 200 includes a second bracket 210 arranged on both sides of the feeding shaft, a transverse sliding module 220 fixedly installed at the upper end of the bracket and arranged along the left and right direction, a first lifting cylinder 230 fixedly connected to the working part of the transverse sliding module and arranged along the vertical direction, a pushing cylinder 240 fixedly connected to the movable end of the first lifting cylinder and arranged along the front and rear direction, and a bidirectional cylinder 250 fixedly connected to the movable end of the pushing cylinder. There are two clamps in total and they are respectively fixedly connected to the two working parts of the bidirectional cylinder.

[0046] The cooperation of the horizontal module, the first lifting cylinder and the pushing cylinder can drive the bidirectional cylinder to move forward, backward, left, right, up and down in three dimensions, and then drive the clamp to move in three dimensions, so as to flexibly transport the retaining spring to the next process.

[0047] A trumpet-shaped opening is arranged on the inner side of the clamping jaw, and the two clamping jaws can move towards each other under the drive of the bidirectional cylinder to clamp the outer side of the retaining spring to achieve the clamping of the retaining spring.

[0048] like Figure 3-5 As shown, a second lifting cylinder 420 is fixedly provided on the side of the first bracket 410 away from the feeding shaft, the second lifting cylinder is arranged in the vertical direction, and the magnetic member 440 is fixedly connected to the movable end of the second lifting cylinder; the magnetic member 440 includes a stopper 441 and a permanent magnet 442, and a groove is provided on the side of the stopper away from the feeding shaft, and the permanent magnet is fixed in the groove.

[0049] The second lifting cylinder is a slide cylinder having a sliding plate that can move up and down, and the magnetic member is fixedly connected to the sliding plate.

[0050] The material of the retaining ring is steel, so it can be attracted by the permanent magnet.

[0051] like Figure 3 and Figure 8 As shown, sensor brackets 430 are fixedly provided at both ends of the second bracket, and an infrared sensor 431 capable of detecting whether there is a retaining spring is provided on the inner side of the sensor bracket. The infrared ray emitted by the infrared sensor is close to the surface of the block away from the permanent magnet 442.

[0052] After the magnetic part moves upward, if the retaining spring falls off or there is no retaining spring on the feed shaft, no retaining spring will be adsorbed to the positioning surface, and the infrared rays emitted by the infrared sensor will not be blocked by the retaining spring. At this time, it can be determined that no retaining spring is separated, and the clamping jaws will not move to this point.

[0053] It is an existing conventional technology to determine whether there is material by infrared sensors.

[0054] like Figure 2-5 As shown, a third lifting cylinder 460 is fixedly provided on one side of the first bracket close to the feeding shaft. The third lifting cylinder is arranged in the vertical direction, and the baffle 450 is fixedly connected to the movable end of the third lifting cylinder; an arc-shaped notch is opened in the middle of the upper end of the baffle.

[0055] The third lifting cylinder is a slide cylinder, and the slide cylinder has a slide plate that can move up and down, and the baffle is fixedly connected to the slide plate.

[0056] The arc-shaped notch can achieve two-point contact between the baffle plate and the retaining spring, thereby improving the stability of the blocking effect.

[0057] like Figure 6-7 As shown, the cross-section of the feeding shaft 320 is the shape remaining after a minor arc is cut off from a circle, and the feeding shaft has an arc surface and a flat surface, and a guide plate 330 is fixedly provided on the flat surface; an L-shaped third bracket 340 is fixedly provided on the upper surface of the unidirectional vibrating machine, and a transverse plate 341 of the third bracket is fixedly provided on the upper surface of the unidirectional vibrating machine 310; a hanging plate 350 is fixedly connected to the upper end of the vertical plate 342 of the third bracket, and the hanging plate is horizontally arranged and the end thereof away from the third bracket is fixedly connected to the upper surface of the guide plate 330.

[0058] The two ends of the feeding shaft are respectively a feeding end and a feeding end, and the retaining ring can be manually inserted into the feeding shaft in batches through the feeding end.

[0059] The arc length of the inferior arch is smaller than the semicircle. The feed shaft adopts this cross-sectional shape so that the retaining spring can be suspended on the feed shaft without falling. The width of the positioning plate should be slightly smaller than the width of the retaining spring opening. During the movement of the retaining spring toward the feed end, the positioning plate maintains the positioning of the retaining spring.

[0060] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A piston retaining spring feeding and clamping device, characterized in that: include: A clamping device (200) having a clamping claw (260) capable of three-dimensional spatial movement and capable of clamping a clamping spring (10); A vibrating feeding device (300) comprises a unidirectional vibrator (310) and a feeding shaft (320) fixedly connected to the unidirectional vibrator, wherein a retaining spring is sleeved on the feeding shaft, and the end of the feeding shaft from which the retaining spring is separated is a feeding end, and the unidirectional vibrator is used to transport the retaining spring sleeved on the feeding shaft to the feeding end; A material distribution device (400) comprises a first bracket (410), a magnetic member (440) arranged on one side of the first bracket, and a baffle (450) arranged on the other side of the first bracket, wherein the magnetic member and the baffle are capable of moving in a vertical direction; and a gap in a horizontal direction between a side of the magnetic member close to the feeding shaft and an end surface of the feeding end is less than the thickness of a retaining spring; The magnetic member moves upward and can adsorb the outermost retaining spring to the surface of the magnetic member, and the baffle moves upward and can block the second retaining spring from moving toward the feeding end; A second lifting cylinder (420) is fixedly provided on a side of the first bracket (410) away from the feeding shaft, the second lifting cylinder is arranged in a vertical direction, and the magnetic member (440) is fixedly connected to a movable end of the second lifting cylinder; The magnetic member (440) comprises a stopper (441) and a permanent magnet (442); a groove is formed on a side of the stopper away from the feeding shaft, and the permanent magnet is fixed in the groove; The clamping device (200) comprises a second bracket (210) arranged on both sides of the feeding shaft, a transverse sliding module (220) fixedly arranged at the upper end of the bracket and arranged in the left-right direction, a first lifting cylinder (230) fixedly connected to the working part of the transverse sliding module and arranged in the vertical direction, a pushing cylinder (240) fixedly connected to the movable end of the first lifting cylinder and arranged in the front-back direction, and a bidirectional cylinder (250) fixedly connected to the movable end of the pushing cylinder, and the clamping claws (260) are two in total and are respectively fixedly connected to the two working parts of the bidirectional cylinder; Sensor brackets (430) are fixedly provided at both ends of the second bracket, and an infrared sensor (431) capable of detecting whether a retaining spring is present is provided on the inner side of the sensor bracket, and infrared rays emitted by the infrared sensor are closely adjacent to the surface of the block away from the permanent magnet (442).

2. The piston retaining spring feeding and clamping device according to claim 1 is characterized in that: A third lifting cylinder (460) is fixedly provided on one side of the first bracket close to the feeding shaft. The third lifting cylinder is arranged in a vertical direction, and the baffle (450) is fixedly connected to the movable end of the third lifting cylinder.

3. The piston retaining spring feeding and clamping device according to claim 1 is characterized in that: An arc-shaped notch is provided in the middle of the upper end of the baffle.

4. The piston retaining spring feeding and clamping device according to claim 1 is characterized in that: The cross section of the feeding shaft (320) is a shape remaining after a minor arc is cut off from a circle, and the feeding shaft has an arc surface and a flat surface, and a guide plate (330) is fixedly arranged on the flat surface; an L-shaped third bracket (340) is fixedly arranged on the upper surface of the unidirectional vibration machine, and a transverse plate (341) of the third bracket is fixedly arranged on the upper surface of the unidirectional vibration machine (310); The upper end of the vertical plate (342) of the third bracket is fixedly connected to a suspension plate (350), and the suspension plate is horizontally arranged and one end thereof away from the third bracket is fixedly connected to the upper surface of the guide plate (330).

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