Grinding mechanism of automatic opening equipment for seal retaining ring

Abstract

The utility model discloses a grinding mechanism of a sealing retaining ring automatic opening device, the grinding mechanism is arranged on the frame of the automatic opening device, and is characterized in that: it comprises a grinding positioning platform and a grinding assembly; the grinding positioning platform comprises a grinding base frame arranged on the frame and a grinding positioning plate arranged on the grinding base frame, the upper surface of the grinding positioning plate is provided with an annular grinding positioning groove for placing the retaining ring to be polished, and a notch is provided on the rear side wall of the grinding positioning plate so that the cutting part of the retaining ring to be polished is exposed to the outside of the grinding positioning plate; the grinding assembly comprises a grinding head group and a grinding feed group driving the grinding head group to move relative to the grinding positioning platform. The utility model can reduce labor costs and improve grinding efficiency.

Description

Technical Field

[0001] The utility model relates to the field of sealing member manufacturing, in particular to a grinding mechanism of automatic opening equipment for a sealing member retaining ring. Background Art

[0002] like Figure 8 The seal retaining ring 10 is shown. After injection molding, an opening 10 needs to be performed on the side wall of the retaining ring to facilitate the installation and use of the seal retaining ring.

[0003] After the retaining ring is opened, burrs will be generated at the opening position. In the prior art, the burrs are removed by manual grinding, that is, the operator holds the retaining ring with one hand and uses the grinding head with the other hand to grind the opening part of the retaining ring. This manual grinding method not only has high labor costs but also low efficiency, so it needs to be further improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a grinding mechanism for an automatic opening device for a sealing retaining ring, which can reduce labor costs and improve grinding efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grinding mechanism for an automatic opening device for a sealing retaining ring, the grinding mechanism is arranged on a frame of the automatic opening device, and is characterized by comprising a grinding positioning table and a grinding assembly;

[0007] The polishing positioning table comprises a polishing base frame arranged on the frame and a polishing positioning plate arranged on the polishing base frame, the upper surface of the polishing positioning plate is provided with an annular polishing positioning groove for placing the retaining ring to be polished, and a notch is provided on the rear side wall of the polishing positioning plate so that the cutting part of the retaining ring to be polished is exposed on the outside of the polishing positioning plate;

[0008] The grinding assembly comprises a grinding head group and a grinding feed group driving the grinding head group to move relative to the grinding positioning platform.

[0009] Preferably, the grinding head group has two groups, namely a plane grinding head group and a side grinding head group, and the plane grinding head group and the side grinding head group both include a grinding motor, a connecting head connected to the grinding motor, a chuck connected to the connecting head, and a wool grinding head connected to the chuck.

[0010] Preferably, the grinding feed group is located on the rear side of the grinding positioning table, and includes an X-axis cylinder arranged on the frame, a Y-axis cylinder and a Z-axis cylinder arranged on the X-axis cylinder, the surface grinding head group is arranged on the Z-axis cylinder, and the side grinding head group is arranged on the Y-axis cylinder.

[0011] Preferably, the grinding positioning plate is provided with avoidance clamping grooves on both sides of the corresponding annular grinding positioning groove, and the avoidance clamping grooves are communicated with the grinding positioning groove.

[0012] The advantages of the utility model are as follows: the grinding positioning plate can position the retaining ring to be ground, the notch can expose the part to be ground on the retaining ring to the outside of the grinding positioning plate, the grinding feed group drives the surface grinding head group and the side grinding head group to move relative to the part of the retaining ring that needs to be ground, and grinds the burrs generated at the opening part of the retaining ring, thereby reducing labor costs and improving grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the automatic opening device for the sealing ring provided in this embodiment;

[0014] Figure 2 A schematic diagram of a cutting positioning table provided in this embodiment;

[0015] Figure 3 A schematic diagram of a cutting blade assembly provided in this embodiment;

[0016] Figure 4 The polishing positioning table provided in this embodiment;

[0017] Figure 5 A schematic diagram of a grinding head assembly and a grinding feed assembly provided in this embodiment;

[0018] Figure 6 A schematic diagram of the transfer mechanism provided in this embodiment;

[0019] Figure 7 A schematic diagram of the discharging mechanism provided in this embodiment;

[0020] Figure 8 This is a schematic diagram of the retaining ring provided in this embodiment. DETAILED DESCRIPTION

[0021] Combination Figures 1 to 8 The grinding mechanism of the automatic opening device for the sealing retaining ring of the utility model is further explained.

[0022] An automatic opening device for a sealing retaining ring is characterized in that it comprises a frame 1 and a feeding mechanism 2, a cutting mechanism 3, a grinding mechanism 4, a conveying mechanism 7 and a discharging mechanism 6 arranged on a table 11 of the frame 1.

[0023] The feeding mechanism 2 includes a conveyor belt 21 and a baffle 22 arranged above the conveyor belt 21 to stop the retaining ring 10 to be opened during transmission. The conveyor belt 21 is extended forward and backward on the frame 1. The rear end of the conveyor belt 21 is the feeding position, and the front end of the conveyor belt 21 is the loading position. The baffle 22 is arranged at the loading position at the front end of the conveyor belt 21 to stop the retaining ring to be opened transmitted from the back to the front on the conveyor belt 21, so that the transfer mechanism 7 can clamp and load the material. The cutting mechanism 3 is located on the right side of the feeding mechanism 2. The present invention comprises a cutting positioning table 32 located on the right side of the material position of the conveyor belt 21, a cutting knife assembly 312 located on the rear side of the cutting positioning table 32, a clamping assembly 34 and a cutting feed assembly 35 arranged on the cutting positioning table 32, wherein the clamping assembly 34 can clamp the retaining ring to be opened on the cutting positioning table 32, and the cutting feed assembly 35 is arranged in the cutting positioning table 32 to drive the retaining ring to be opened on the cutting positioning table 32 to move toward or away from the cutting knife assembly 312; the grinding mechanism 4 is located on the right side of the cutting mechanism 3, and comprises a grinding positioning table 41 located on the right side of the cutting positioning table 32 and a grinding assembly 42 located on the rear side of the grinding positioning table 41, wherein the grinding assembly 42 comprises a grinding head group and a grinding feed group 421 that drives the grinding head group to move relative to the grinding positioning table 41; the transfer mechanism 7 is located on the front side of the feeding mechanism 2, the cutting mechanism 3 and the grinding mechanism 4, and comprises a mounting frame 72, a feeding clamping assembly 74 and a feeding feed assembly 73, wherein the feeding clamping assembly 74 The feeding assembly 73 is arranged on the mounting frame 72, and is driven by the feeding assembly 73 to move between the feeding mechanism 2, the cutting mechanism 3 and the grinding mechanism 4; the discharging mechanism 6 is located on the rear side of the grinding positioning table 41, and includes a frame 61, a discharging clamping assembly 63 and a discharging feeding assembly 62. The discharging clamping assembly 63 is arranged on the frame 61 through the discharging feeding assembly 62, and is driven by the discharging feeding assembly 62 to move between the grinding mechanism 4 and the discharge port 12 of the frame 1.

[0024] In the feeding mechanism 2, the conveyor belt 21 is a prior art, located on the left side of the table 11 of the frame 1, and is composed of two front and rear rollers, a conveyor belt wound around the two rollers, and a driving motor that drives one of the rollers to rotate.

[0025] The baffle plate 22 has a V-shaped positioning groove, the notch of which faces the feed position. The retaining ring to be opened transferred from the feed position to the upper material position will be positioned at the center of the V-shaped positioning groove for clamping by the transfer mechanism 7.

[0026] The mounting structure of the baffle 22 is that the table 11 of the frame 1 has a mounting rail extending forward and backward at a position corresponding to the left side of the conveyor belt 21, and the mounting rail has a T-shaped slot extending forward and backward. The left side of the baffle 22 is fixed to the T-shaped slot of the mounting rail through a vertical plate 221 and corresponding bolts. The plate body of the baffle 22 spans over the conveyor belt 21 to stop the retaining ring to be opened on the conveyor belt 21. The mounting structure of the baffle 22 enables the baffle 22 to move in the forward and backward direction to stop retaining rings of different sizes to be opened at different positions in front and behind the conveyor belt 21 for clamping by the transfer mechanism 7.

[0027] In the cutting mechanism 3, the cutting positioning platform 32 comprises a cutting base frame 321 arranged on the frame 1, a slide plate 322 slidingly engaged with the upper surface of the cutting base frame 321 through a slide rail, and a cutting positioning plate 323 fixed to the upper surface of the slide plate 322 by bolts. The upper surface of the cutting positioning plate 323 has an annular cutting positioning groove 3231 for horizontal placement of the retaining ring to be opened, and a cutting avoidance opening 3232 is provided on the rear side wall of the cutting positioning plate 323. The cutting avoidance opening 3232 extends from the outer side of the cutting positioning plate 323 to the inner side of the annular cutting positioning groove 3231, so that the cutting knife assembly 312 can extend from the outside to the inside to cut the retaining ring. When it is necessary to cut and open retaining rings of different sizes, the cutting positioning plate 323 with annular cutting positioning grooves 3231 of different diameters can be replaced to allow retaining rings of different sizes to be placed.

[0028] The cutting feed assembly 35 is arranged between the cutting base frame 321 and the slide plate 322, and drives the slide plate 322 to move forward and backward. The cutting feed assembly 35 is a cutting feed cylinder, the cylinder body of which is installed on the cutting base frame 321, and the piston rod is connected to the slide plate 322, and drives the slide plate 322 and the cutting positioning plate 323 on the slide plate 322 to move forward and backward.

[0029] There are two groups of clamping assemblies 34, which are located near the rear side of the slide plate 322 and on the left and right sides of the cutting positioning plate 323. Each group of clamping assemblies 34 includes a clamping cylinder 342 and a pressing rod 341 arranged on the clamping cylinder 342. The clamping cylinder 342 is installed on the lower surface of the slide plate 322. The upper end of the piston rod of the clamping cylinder 342 passes through the slide plate 322 and extends to the top of the cutting positioning plate 323 for the installation of the pressing rod 341. After the clamping cylinder 342 contracts, it drives the pressing rod 341 to move downward, so that the two pressing rods 341 are pressed on both sides of the part to be cut of the retaining ring to ensure the stability of the retaining ring when cutting.

[0030] The cutting knife assembly 312 includes a cutting motor 3121 installed on the frame 1 through a bracket and a cutting wheel 3122 connected to the rotating shaft of the cutting motor 3121. The cutting wheel 3122 corresponds to the cutting avoidance opening 3232. When the cutting feed assembly 35 drives the cutting positioning plate 323 and the retaining ring to move toward the cutting wheel 3122, the cutting wheel 3122 gradually enters the cutting avoidance opening 3232 to cut the retaining ring in the annular cutting positioning groove 3231.

[0031] A dust cover 31 is provided on the cutting blade assembly 312, and the dust cover is a front opening structure for the retaining ring to contact the cutting wheel 3122; a dust suction pipe 311 is connected to the rear side wall of the dust cover 31, and a dust suction box is provided at the other end of the dust suction pipe 311, and the dust suction box is placed in the frame 1. The dust cover 31 can prevent the splashing of cutting waste, and at the same time, the generated cutting waste can be effectively absorbed through the dust suction pipe to ensure the hygienic condition of the use of the device.

[0032] In the grinding mechanism 4, the grinding positioning platform 41 includes a grinding base frame 411 arranged on the frame 1 and a grinding positioning plate 412 arranged on the grinding base frame 411 by bolts, the upper surface of the grinding positioning plate 412 is provided with an annular grinding positioning groove 4121 for horizontal placement of the retaining ring to be polished, and a notch 4122 is provided on the rear side wall of the grinding positioning plate 412, the notch 4122 penetrates the outer groove wall and the bottom wall of the annular grinding positioning groove 4121, so that the cutting part of the retaining ring to be polished is exposed on the outside of the grinding positioning plate 412. When retaining rings of different diameters need to be cut and polished, the grinding positioning plate 412 with different annular grinding positioning grooves 4121 can be replaced to allow retaining rings of different diameters to be placed and polished.

[0033] After cutting and opening, burrs will be generated at the cutting position of the retaining ring. Therefore, the setting of the notch 4122 on the grinding positioning plate 412 makes the upper surface, lower surface and side surface of the retaining ring corresponding to the cutting position exposed on the outside of the grinding positioning plate 412, which is convenient for the grinding head group to contact and grind.

[0034] The grinding head group has two groups, namely a plane grinding head group 423 and a side grinding head group 422. The plane grinding head group 423 and the side grinding head group 422 both include a grinding motor 4224, a connector 4223 connected to the rotating shaft of the grinding motor 4224, a chuck 4222 connected to the connector 4223, and a wool grinding head 4221 connected to the chuck 4222. The wool grinding head 4221 in the plane grinding head group 423 extends forward and backward, and is used for grinding the upper and lower surfaces of the cutting part of the retaining ring. The wool grinding head 4221 in the side grinding head group 422 extends in the same direction as the cutting opening of the retaining ring, and is used for grinding the outer wall of the cutting part of the retaining ring.

[0035] The grinding feed group 421 is located at the rear side of the grinding positioning table 41, and includes an X-axis cylinder 4211 arranged on the frame 1, a Y-axis cylinder 4213 and a Z-axis cylinder 4212 arranged on the X-axis cylinder 4211, the grinding motor in the plane grinding head group 423 is arranged on the slider of the Z-axis cylinder 4212, and the grinding cylinder in the side grinding head group 422 is arranged on the slider of the Y-axis cylinder 4213. The X-axis is the left-right direction of the frame 1, the Y-axis is the front-back direction of the frame 1, and the Z-axis is the height direction of the frame 1. Through the grinding feed group 421, the wool grinding head 4221 in the plane grinding head group 423 can be brought into contact with and polished on the upper and lower surfaces at the cutting position of the retaining ring, and the wool grinding head 4221 in the side grinding head group 422 can be brought into contact with and polished on the outer side surface at the cutting position of the retaining ring.

[0036] When the upper surface is polished, the retaining ring is pressed downward, and when the outer surface is polished, the retaining ring is pressed inward, so no other clamping mechanism is required. When the lower surface is polished, the retaining ring will be pushed upward. During this process, the retaining ring is clamped in the annular polishing positioning groove 4121 by the discharge clamping assembly 63 in the discharge mechanism 6, so a clamping mechanism may not be set.

[0037] In the transfer mechanism 7, the mounting frame 72 is slidably matched with the slide rails extending forward and backward on the table 11 of the frame 1, and a mounting frame feeding assembly 71 is provided between the frame 1 and the mounting frame 72 to drive the mounting frame 72 to move forward and backward. The mounting frame feeding assembly 71 includes a screw rod provided on the table 11 of the frame 1 and a nut sleeve provided on the mounting frame 72 and matched with the screw rod. After the screw rod is rotated, the mounting frame 72 can be driven to move forward and backward on the frame 1.

[0038] The feeding gripper assembly 74 includes a connecting frame 742 arranged on the feeding assembly 73 and two gripper groups 741 arranged on the connecting frame 742 and distributed along the left and right directions of the frame 1. Each gripper group 741 includes two finger cylinders 7411 distributed along the left and right directions of the frame 1 and a gripper finger 7412 arranged on the finger cylinder 7411. The two gripper groups 741 can transfer two retaining rings at the same time, that is, can transfer the retaining ring on the material loading position to the cutting mechanism 3, and at the same time transfer the retaining ring cut on the cutting mechanism 3 to the grinding mechanism 4. Each retaining ring is clamped by the two left and right finger cylinders 7411, which can significantly improve the stability of the retaining ring clamping.

[0039] In order to facilitate the clamping of the finger 7412 on the finger cylinder 7411 to the retaining ring on the cutting positioning plate 323 or the grinding positioning plate 412, avoidance clamping grooves 8 are opened on both sides of the annular cutting positioning groove 3231 corresponding to the cutting positioning plate 323 and on both sides of the annular grinding positioning groove 4121 corresponding to the grinding positioning plate 412, and the avoidance clamping grooves 8 are connected to the cutting positioning groove 3231 and the grinding positioning groove 4121.

[0040] The connecting frame 742 includes a connecting plate 7422 connected to the feeding assembly 73 and a mounting arm 7421 connected to the connecting plate 7422 and extending in the left-right direction. The mounting arm 7421 has a mounting groove extending in the left-right direction, and the finger cylinder 7411 is installed in the mounting groove. When it is necessary to clamp retaining rings of different sizes, the finger cylinder 7411 can be moved on the mounting groove to adjust the distance between the two finger cylinders 7411 in each group of gripper groups 741.

[0041] The feeding assembly 73 includes a lifting cylinder 732 that slides left and right on the slide rail of the mounting frame 72 and a ball screw pair 731 arranged between the mounting frame 72 and the lifting cylinder 732. The slider of the lifting cylinder 732 is connected to the connecting plate 7422 in the connecting frame 742. The ball screw pair 731 drives the lifting cylinder 732 to move in the left and right directions of the frame 1 to transfer the retaining ring clamped by the clamping hand group 741.

[0042] In the discharging mechanism 6, a mounting plate 5 is provided on the frame 1 at the rear side of the corresponding grinding positioning table 41 and above the grinding feed group 421. The mounting plate 5 is installed on the table top 11 of the frame 1 through a plurality of columns. The frame body 61 is slidably engaged with the slide rail on the mounting plate 5. A frame body feeding assembly for driving the frame body 61 to move forward and backward is provided between the mounting plate 5 and the frame body 61. The structure of the frame body feeding assembly is the same as that of the mounting frame feeding assembly 71, which drives the frame body 61 to move in the front and rear direction of the frame 1 to clamp and transfer retaining rings of different sizes.

[0043] The structure of the discharge feeding assembly 62 is the same as that of the feeding assembly 73 , and the discharge clamping assembly 63 is transferred between the grinding positioning table 41 and the discharge port 12 of the frame 1 .

[0044] The only difference between the structure of the discharge clamping assembly 63 and the structure of the feed clamping assembly 74 is that in the discharge clamping assembly 63, the clamping group 741 is only one group, and the rest of the structure is the same, cooperating with the discharge feeding assembly 62 to move the retaining ring on the grinding positioning table 41 to the discharge port 12 on the right side of the frame 1.

[0045] When in use, each mechanism cooperates with the control system of the equipment and the sensors at the corresponding positions, and the control system can be a PLC.

[0046] The specific process is as follows: the injection-molded retaining ring is placed on the feeding position of the conveyor belt 21 by the robot, and then conveyed to the loading position by the conveyor belt 21;

[0047] The transfer mechanism 7 clamps the retaining ring on the loading position, and then transfers it to the cutting positioning table 32 in the cutting mechanism 3. The cutting feed assembly 35 drives the cutting positioning plate 323 and the retaining ring to move toward the cutting wheel 3122, so that the cutting wheel 3122 completes the cutting operation on the retaining ring, and then the cutting feed assembly 35 is reset;

[0048] The transfer mechanism 7 clamps the cut retaining ring on the cutting positioning plate 323 and transfers it to the grinding positioning plate 412 in the grinding mechanism 4. At the same time, the transfer mechanism 7 transfers the retaining ring to be cut on the loading position to the cutting positioning plate 323 for cutting.

[0049] The grinding feed group 421 drives the surface grinding head group 423 and the side grinding head group 422 to grind the upper and lower surfaces and the outer side surface of the retaining ring at the corresponding cutting position respectively;

[0050] The discharging mechanism 6 clamps the polished retaining ring and then transfers it to the discharging port 12 located on the right side of the frame 1, thereby performing a cyclic operation.

[0051] Unless otherwise specified, in the present utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or position relationship in the present utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0052] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A grinding mechanism for an automatic opening device for a sealing retaining ring, the grinding mechanism being arranged on a frame of the automatic opening device, and characterized in that: Including grinding positioning table and grinding components; The polishing positioning table comprises a polishing base frame arranged on the frame and a polishing positioning plate arranged on the polishing base frame, the upper surface of the polishing positioning plate is provided with an annular polishing positioning groove for placing the retaining ring to be polished, and a notch is provided on the rear side wall of the polishing positioning plate so that the cutting part of the retaining ring to be polished is exposed on the outside of the polishing positioning plate; The grinding assembly comprises a grinding head group and a grinding feed group driving the grinding head group to move relative to the grinding positioning platform.

2. The grinding mechanism of the automatic opening device for the seal retaining ring according to claim 1 is characterized by: The grinding head group has two groups, namely a plane grinding head group and a side grinding head group. The plane grinding head group and the side grinding head group both include a grinding motor, a connecting head connected to the grinding motor, a chuck connected to the connecting head, and a wool grinding head connected to the chuck.

3. The grinding mechanism of the automatic opening device for the seal retaining ring according to claim 2 is characterized by: The grinding feed group is located at the rear side of the grinding positioning table, and includes an X-axis cylinder arranged on the frame, a Y-axis cylinder arranged on the X-axis cylinder, and a Z-axis cylinder. The surface grinding head group is arranged on the Z-axis cylinder, and the side grinding head group is arranged on the Y-axis cylinder.

4. The grinding mechanism of the automatic opening device for sealing retaining ring according to claim 1 is characterized by: The grinding positioning plate is provided with avoidance clamping grooves on both sides of the corresponding annular grinding positioning groove, and the avoidance clamping grooves are communicated with the grinding positioning grooves.

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