PLV valve rubber ring mounting device

Abstract

The utility model discloses a device for installing a rubber ring on a PLV valve. The device comprises a rotating disc, an index plate, a plurality of tools arranged on the rotating disc in the circumferential direction, a feeding mechanism arranged on the outer side of the rotating disc and a power mechanism. The tool comprises an expansion sleeve, an expanding piece used for expanding the expansion sleeve, a support arranged on the rotary disc and a lifting frame arranged on the support in a sliding mode, and the expanding piece comprises an expansion head making contact with the inner wall of the expansion sleeve and a rotating rod in threaded connection with the expansion head. The power mechanism comprises a fixing base, a rotation driving assembly arranged on the fixing base and used for driving the rotating rod to rotate, a pressing piece arranged on the fixing base and used for being matched with the tool to press the PLV on the upper end face of the expansion sleeve, and a jacking assembly arranged on the support and used for driving the lifting frame to ascend and descend. A first step is arranged on the outer wall of the expansion sleeve. The device has the advantages that the PLV valve can be rapidly and automatically sleeved with the rubber ring, extrusion deformation cannot be caused to the PLV valve, and the working efficiency and the assembling precision are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of assembly equipment, in particular to a PLV valve rubber ring device. Background Art

[0002] PLV valve is a kind of valve. In practical application, in order to ensure the sealing of the valve, a rubber ring is sleeved on the outer periphery of the valve. The existing assembly device for sleeve rubber ring adopts the method of directly clamping the rubber ring and then pushing it along the outer periphery of the valve. This method is easy to scratch the outer wall of the valve, has low assembly accuracy and low efficiency.

[0003] For example, the Chinese patent with publication number CN105414951A discloses a one-way valve O-ring assembly device, including a tooling truncated table, the surface of which is evenly provided with four valve core sockets along the same circumference, a rotating motor is provided at the bottom of the tooling truncated table, a valve core clamp, an O-ring clamp and a finished product clamp are also provided above the tooling truncated table, a valve core feeding mechanism is provided on one side of the valve core clamp, a lifting mechanism is provided below the tooling truncated table on one side of the O-ring clamp, and an O-ring feeding mechanism is provided on one side of the O-ring clamp. The above-mentioned one-way valve O-ring assembly device uses an O-ring clamp to directly grab the O-ring and then send it to the one-way valve. The O-ring is easily deformed during the process of being separated from the clamp, resulting in errors in the assembly position, and the clamp is prone to scratching the one-way valve.

[0004] In view of this, it is necessary to provide a PLV valve rubber ring device. Summary of the invention

[0005] The utility model provides a PLV valve rubber ring device, which effectively solves the problems of low assembly precision and low assembly efficiency in the prior art.

[0006] The technical solution adopted by the utility model is

[0007] The PLV valve rubber ring device comprises a turntable, a dividing plate driving the turntable to rotate, a plurality of toolings arranged circumferentially on the turntable, a feeding mechanism arranged outside the turntable, and a power mechanism cooperating with the tooling to feed materials. The tooling includes a tightening sleeve, an expanding part for expanding the tightening sleeve, a bracket arranged on a turntable, and a lifting frame slidably arranged on the bracket, the lifting frame is provided with a circular hole, the tightening sleeve is concentric with the circular hole, the expanding part includes an expanding head in contact with the inner wall of the tightening sleeve and a rotating rod threadedly connected to the expanding head, the power mechanism includes a fixed seat, a rotating drive assembly arranged on the fixed seat for driving the rotating rod to rotate, a pressing part arranged on the fixed seat for cooperating with the tooling to press the PLV valve against the upper end face of the tightening sleeve, and a jacking assembly arranged on the support for driving the lifting frame to rise and fall, the outer wall of the tightening sleeve is provided with a No. 1 step, the No. 1 step is used to support the rubber ring, the upper end face of the tightening sleeve is used to support the PLV valve, and the lifting frame moves upward under the drive of the jacking assembly to push the rubber ring to the outer side of the circumference of the PLV valve.

[0008] Furthermore, the expansion sleeve includes a plate No. 1 fixedly mounted on the bracket and a plurality of elastic sheets circumferentially arranged on the plate No. 1, the outer wall of the expansion head abuts against the inner walls of the plurality of elastic sheets, a through hole is arranged on the plate No. 1, the rotating rod passes through the through hole and is threadedly connected to the expansion head, and the step No. 1 is arranged on the outer wall of the elastic sheet.

[0009] Furthermore, the expansion head includes a No. 1 cylinder, a No. 2 cylinder and a hollow cone connecting the No. 1 cylinder and the No. 2 cylinder, the No. 2 cylinder is located above the No. 1 cylinder, the hollow cone shrinks toward one end of the No. 1 cylinder, and when the elastic sheet is not expanded, the No. 1 cylinder is against the elastic sheet.

[0010] Furthermore, the rotary drive assembly includes a No. 1 cylinder vertically arranged on a fixed seat, a servo motor fixedly arranged at the output end of the No. 1 cylinder, and a rotating shaft fixedly arranged on the output shaft of the servo motor, and a slot adapted to the rotating shaft is arranged at the lower end of the rotating rod.

[0011] Furthermore, the feeding mechanism includes a vibrating plate, a straight vibrator connected to a rotating plate, a correction part for positioning the PLV valve sent out by the straight vibrator, a linear module horizontally arranged on a fixed seat, a No. 2 cylinder arranged at the output end of the linear module along the Z direction, and a clamp fixedly arranged at the output end of the No. 2 cylinder.

[0012] Beneficial effects of the utility model: The structural design of the power mechanism and the tooling can quickly and automatically set the rubber ring on the PLV valve without causing extrusion deformation of the PLV valve, thereby effectively improving work efficiency and assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is an overall schematic diagram of the PLV valve rubber ring device provided in an embodiment of the present application.

[0014] Figure 2 A schematic diagram of the cooperation state of a power mechanism, a feeding mechanism and a tooling of a PLV valve-mounted rubber ring device provided in an embodiment of the present application.

[0015] Figure 3 A three-dimensional schematic diagram of the power mechanism and tooling of the PLV valve-mounted rubber ring device provided in an embodiment of the present application.

[0016] Figure 4 A side view of the power mechanism and tooling of the PLV valve-mounted rubber ring device provided in an embodiment of the present application.

[0017] Figure 5 For along Figure 4 AA cross-sectional view.

[0018] Figure 6 A schematic diagram of the expansion sleeve, expansion head, and lifting frame of the PLV valve rubber ring installation device provided in an embodiment of the present application after the PLV valve is assembled.

[0019] Figure 7 A schematic diagram of a tightening head of a PLV valve rubber ring device provided in an embodiment of the present application.

[0020] Figure 8 A schematic diagram of a feeding mechanism of a PLV valve rubber ring device provided in an embodiment of the present application.

[0021] The markings in the figure are: 1. turntable; 2. tooling; 3. feeding mechanism; 4. power mechanism; 21. expansion sleeve; 22. expansion head; 23. bracket; 24. lifting frame; 25. rotating rod; 41. fixed seat; 42. rotary drive assembly; 43. pressing piece; 44. lifting assembly; 210. step No. 1; 211. plate No. 1; 212. elastic sheet; 221. cylinder No. 1; 222. cylinder No. 2; 223. hollow truncated table; 421. cylinder No. 1; 422. servo motor; 423. rotating shaft; 31. vibrating plate; 32. straight vibrator; 33. return piece; 34. linear module; 35. cylinder No. 2; 36. clamping claw; 100. PLV valve; DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the PLV valve-mounted rubber ring device provided in the embodiment of the present application has a structure including a turntable 1, a dividing plate for driving the turntable to rotate, a plurality of fixtures 2 circumferentially arranged on the turntable 1, a feeding mechanism 3 arranged on the outside of the turntable 1, and a power mechanism 4 for feeding with the fixture 2. The fixture 2 includes an expansion sleeve 21, an expansion member for expanding the expansion sleeve 21, a bracket 23 arranged on the turntable 1, and a lifting frame 24 slidably arranged on the bracket 23, wherein a circular hole is arranged on the lifting frame 24, wherein the expansion sleeve 21 is concentric with the circular hole, the expansion member includes an expansion head 22 in contact with the inner wall of the expansion sleeve 21, and a rotating rod 25 threadedly connected to the expansion head 22, and the power mechanism 4 includes a fixed seat 41, a rotary driving mechanism 3 arranged on the fixed seat 41 for driving the rotating rod 25 to rotate. A component 42, a pressing piece 43 arranged on the fixed seat 41 for cooperating with the tooling 2 to press the PLV valve 100 against the upper end surface of the expansion sleeve 21, and a lifting component 44 arranged on the support for driving the lifting frame 24 to lift and lower. A step No. 210 is arranged on the outer wall of the expansion sleeve 21, and the step No. 1 210 is used to support the rubber ring. The upper end surface of the expansion sleeve 21 is used to support the PLV valve 100. The lifting frame 24 moves upward under the drive of the lifting component 44 to push the rubber ring to the outside of the circumference of the PLV valve 100.

[0024] It should be noted that, since the expansion head 22 and the rotating rod 25 are threadedly connected, the static friction between the expansion sleeve 21 and the expansion head 22 is greater than the torque between the expansion head 22 and the rotating rod 25. Therefore, when the rotating rod 25 rotates, the expansion head 22 will not idle, thereby causing the expansion head 22 to spirally rise and fall to achieve cooperation with the expansion sleeve 21.

[0025] In actual use, the rotating rod 25 is driven to rotate by the rotating drive component 42, so that the expansion head 22 moves down to expand the expansion sleeve 21, thereby making the rubber ring supported on the first step 210 expand synchronously. After expansion, the lower end surface of the rubber ring coincides with the upper end surface of the lifting frame 24, and then the feeding mechanism 3 places the PLV valve 100 on the upper end surface of the expansion sleeve 21, and uses the clamping piece 43 to clamp the upper end surface of the PLV valve 100, and then the lifting component 44 drives the lifting frame 24 to move upward, so that the lifting frame 24 lifts the rubber ring from the lower end surface of the rubber ring, so that the rubber ring is sleeved on the PLV valve 100, and then the rotating drive component 42 drives the expansion piece to reset and then disengage from the expansion piece, the clamping piece 43 disengages from the PLV valve 100, and the dividing plate drives the turntable 1 to rotate, and the next PLV valve 100 and the rubber ring are assembled.

[0026] In the above design, the structural design of the power mechanism 4 and the tooling 2 can quickly and automatically put the rubber ring on the PLV valve 100 without causing extrusion deformation of the PLV valve 100, thereby effectively improving work efficiency and assembly accuracy.

[0027] Specifically: Figure 7 As shown, the expansion sleeve 21 includes a No. 1 plate 211 fixedly arranged on the bracket 23 and a plurality of elastic sheets 212 circumferentially arranged on the No. 1 plate 211. The outer wall of the expansion head 22 abuts against the inner walls of the plurality of elastic sheets 212. A through hole is arranged on the No. 1 plate 211. The rotating rod 25 passes through the through hole and is threadedly connected to the expansion head 22. The No. 1 step 210 is arranged on the outer wall of the elastic sheet 212.

[0028] In actual use, when the expansion head 22 moves downward, the plurality of elastic sheets 212 are squeezed by the expansion head 22 and expanded, thereby expanding the rubber ring.

[0029] In the above design, the structural design of the expansion sleeve 21 can ensure that the rubber ring is more easily expanded.

[0030] Specifically: Figure 5 and Figure 6 As shown, the expansion head 22 includes a No. 1 cylinder 221, a No. 2 cylinder 222 and a hollow cone 223 connecting the No. 1 cylinder 221 and the No. 2 cylinder 222. The No. 2 cylinder 222 is located above the No. 1 cylinder 221. The hollow cone 223 shrinks toward one end of the No. 1 cylinder 221. When the elastic sheet 212 is not expanded, the No. 1 cylinder 221 is against the elastic sheet 212.

[0031] In actual use, when the expansion head 22 moves downward, the hollow truncated cone 223 squeezes the elastic sheets 212 from top to bottom, so that the upper ends of the elastic sheets 212 are gradually stretched outward.

[0032] In the above design, the structural design of the expansion head 22 can evenly expand the plurality of elastic edges at the same time, thereby ensuring the contraction consistency of the plurality of elastic sheets 212 .

[0033] Specifically: Figure 3 , Figure 4 and Figure 5 As shown, the rotary drive assembly 42 includes a No. 1 cylinder 421 vertically arranged on a fixed seat 41, a servo motor 422 fixedly arranged at the output end of the No. 1 cylinder 421, and a rotating shaft 423 fixedly arranged on the output shaft of the servo motor 422, and a card slot adapted to the rotating shaft 423 is arranged at the lower end of the rotating rod 25.

[0034] In actual use, when the turntable 1 stops rotating so that one of the tooling 2 corresponds to the rotating drive assembly 42, the servo motor 422 is driven to rise by the No. 1 cylinder 421, so that the upper end of the rotating shaft 423 extends into the slot, and then the servo motor 422 drives the rotating shaft 423 to rotate. Due to the limit between the rotating shaft 423 and the slot, the rotating rod 25 is driven to rotate synchronously. Since the rotating rod 25 is threadedly connected with the expansion head 22, and the static friction between the expansion sleeve 21 and the expansion head 22 is greater than the torque between the expansion head 22 and the rotating rod 25, the expansion head 22 moves down to open the expansion sleeve 21. After the assembly on one tooling 2 is completed, the No. 1 cylinder 421 drives the servo motor 422 to move down.

[0035] In the above design, the structural design of the rotation drive assembly 42 can not only quickly realize the driving of the rotating rod 25, but also effectively avoid the various tooling 2 when the turntable 1 rotates.

[0036] Specifically: Figure 8 As shown, the feeding mechanism 3 includes a vibrating disk 31, a straight vibrator 32 connected to a rotating disk, a return piece 33 for positioning the PLV valve 100 sent out by the straight vibrator 32, a linear module 34 horizontally arranged on a fixed seat 41, a No. 2 cylinder 35 arranged at the output end of the linear module 34 along the Z direction, and a clamp 36 fixedly arranged at the output end of the No. 2 cylinder 35.

[0037] During actual use, the PLV valve 100 is transported to the straight vibrator 32 through the vibration disk 31, and the straight vibrator 32 transports the PLV valve 100 to the correction part 33 for correction, and then the No. 2 cylinder 35 drives the clamp 36 to move downward. After the clamp 36 clamps the PLV valve 100, the No. 2 cylinder 35 drives the clamp 36 to rise, and the linear module 34 drives the No. 2 cylinder 35 to move above the tooling 2, and then the No. 2 cylinder 35 drives the clamp 36 to move downward to place the PLV valve 100 on the tooling 2.

[0038] In the above design, the structural design of the feeding mechanism 3 can center the PLV valve 100 and transfer it quickly.

[0039] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PLV valve-mounted rubber ring device, comprising a turntable (1), a dividing plate for driving the turntable to rotate, a plurality of fixtures (2) circumferentially arranged on the turntable (1), a feeding mechanism (3) arranged outside the turntable (1), and a power mechanism (4) for feeding with the fixtures (2), characterized in that: The tooling (2) comprises an expansion sleeve (21), an expansion member for expanding the expansion sleeve (21), a bracket (23) arranged on the turntable (1), and a lifting frame (24) slidably arranged on the bracket (23); a circular hole is arranged on the lifting frame (24); the expansion sleeve (21) is concentric with the circular hole; the expansion member comprises an expansion head (22) in contact with the inner wall of the expansion sleeve (21) and a rotating rod (25) threadedly connected to the expansion head (22); the power mechanism (4) comprises a fixed seat (41), a rotating rod (25) arranged on the fixed seat (41) and used to drive the rotating rod (25) to rotate A rotating drive component (42) is provided on a fixed seat (41) for cooperating with a tool (2) to press the PLV valve against the upper end surface of the expansion sleeve (21), and a lifting component (44) is provided on a support for driving a lifting frame (24) to move up and down. The outer wall of the expansion sleeve (21) is provided with a first step (210), and the first step (210) is used to support a rubber ring. The upper end surface of the expansion sleeve (21) is used to support the PLV valve. The lifting frame (24) moves upward under the drive of the lifting component (44) to push the rubber ring to the outer side of the circumference of the PLV valve (100).

2. The PLV valve rubber ring device according to claim 1, characterized in that: The expansion sleeve (21) comprises a No. 1 plate (211) fixedly arranged on the bracket (23) and a plurality of elastic sheets (212) circumferentially arranged on the No. 1 plate (211); the outer wall of the expansion head (22) abuts against the inner walls of the plurality of elastic sheets (212); a through hole is arranged on the No. 1 plate (211); the rotating rod (25) passes through the through hole and is threadedly connected to the expansion head (22); and the No. 1 step (210) is arranged on the outer wall of the elastic sheet (212).

3. The PLV valve rubber ring device according to claim 2, characterized in that: The expansion head (22) comprises a first cylinder (221), a second cylinder (222) and a hollow truncated cone (223) connecting the first cylinder (221) and the second cylinder (222); the second cylinder (222) is located above the first cylinder (221); the hollow truncated cone (223) contracts toward one end of the first cylinder (221); and when the elastic sheets (212) are not expanded, the first cylinder (221) abuts against the elastic sheets (212).

4. The PLV valve rubber ring device according to claim 1, characterized in that: The rotary drive assembly (42) comprises a first cylinder (421) vertically arranged on a fixed seat (41), a servo motor (422) fixedly arranged at an output end of the first cylinder (421), and a rotating shaft (423) fixedly arranged on an output shaft of the servo motor (422), and a slot adapted to the rotating shaft (423) is provided at the lower end of the rotating rod (25).

5. The PLV valve rubber ring device according to claim 1, characterized in that: The feeding mechanism (3) comprises a vibrating plate (31), a straight vibrator (32) connected to the rotating plate, a return piece (33) for positioning the PLV valve sent out by the straight vibrator (32), a linear module (34) horizontally arranged on a fixed seat (41), a No. 2 air cylinder (35) arranged at the output end of the linear module (34) along the Z direction, and a clamp (36) fixedly arranged at the output end of the No. 2 air cylinder (35).

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