CN216541761U

CN216541761U - Feeding mechanism for valve ball in semi-automatic ball valve assembling machine

Info

Publication number: CN216541761U
Application number: CN202123299975.3U
Authority: CN
Inventors: 郑志勇; 田保国; 周兴良; 徐正家
Original assignee: Zhejiang Best And Honest Electromechanics Co ltd
Current assignee: Zhejiang Best And Honest Electromechanics Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-17
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a feeding mechanism for a valve ball in a semi-automatic ball valve assembling machine, and belongs to the technical field of machinery. It has solved the poor problem of transport stability. It includes the base, fix the linear vibrator on the base and install the linear transport guide rail on the linear vibrator, the linear transport guide rail upside is equipped with the constant head tank of arranging along its length direction, the last side of linear transport guide rail is connected with the baffle of arranging along its length direction in one side of constant head tank, the baffle can be through the translation adjust with the distance between the constant head tank, still be connected with the limiting plate of arranging along its length direction on the linear transport guide rail, the limiting plate is located the opposite side of constant head tank and the limiting plate is close to one side upper end of constant head tank and has the flange, the flange is located constant head tank top and the limiting plate can reciprocate for the linear transport guide rail. It has the advantages of more stable transportation, wide applicability and the like.

Description

Feeding mechanism for valve ball in semi-automatic ball valve assembling machine

Technical Field

The utility model belongs to the technical field of machinery, relates to a ball valve semi-automatic assembling machine, and particularly relates to a feeding mechanism of a valve ball in the ball valve semi-automatic assembling machine.

Background

The ball valve mainly comprises a valve body, a valve ball arranged in the valve body and a valve rod with the inner end extending into the valve body and inserted into a linear connecting groove on the valve ball, and in the existing ball valve assembling process, the valve ball needs to be manually installed into the valve body by a worker, so that the production efficiency is very low. In order to solve the above problems, the chinese patent discloses a valve ball feeding device with application number 201711275641.8, which includes a conveying track, a rotary clamp disposed at a discharge port of the conveying track, and a rotary driving member capable of driving the rotary clamp to rotate, wherein the conveying track is in a long strip shape, a linear vibrator is connected to a lower side of a bottom of the conveying track, a protruding long strip-shaped fixture block is provided on an upper side surface of the bottom of the conveying track, and a setting direction of the fixture block is the same as a feeding direction of the conveying track and is used for being clamped into a connecting groove of a valve ball to position the valve ball; the level of delivery track's discharge gate department is provided with the bottom plate, is connected with the joint piece of protrusion on the bottom plate, and this joint piece is used for the card to go into the spread groove of valve ball, all is provided with the stopper on the bottom plate of joint piece both sides, and two stopper tops all have the spacing portion that is used for supporting the valve ball lateral surface towards one side of joint piece. When the valve ball grabbing device is used, a feeding hole of the conveying track is in butt joint with the vibrating disc, the valve ball is sequentially conveyed to the conveying track through the vibrating disc, then the linear vibrator drives the conveying track to move to convey the valve ball to the bottom plate, and then the rotary clamp clamps the valve ball and drives the rotary clamp to rotate to the position where the valve ball is located through the rotary driving piece so that the sucking disc and the like can grab the valve ball. When the valve ball is on the conveying track, the clamping block on the conveying track is clamped into the connecting groove on the valve ball so as to ensure that the valve ball does not deflect; when the valve ball is arranged on the bottom plate, the clamping block on the bottom plate is clamped into the connecting groove on the valve ball so as to position the valve ball, and the valve ball can be ensured to be stably kept when being conveyed to the bottom plate from the conveying track.

In the process of linear conveying, although the clamping block is clamped into the connecting groove on the valve ball to ensure that the valve ball does not deflect, the conveying track is inevitably driven by the linear vibrator to shake up and down, so that the valve ball is caused to jump and possibly separated from the clamping block; in addition, when the specifications of the valve balls are different, the sizes of the valve balls are different, for the large-specification valve balls, the depth of the connecting groove is deeper, the effective contact between the clamping block and the valve ball is much smaller than the volume of the whole valve ball, and the effective positioning of the valve balls in the conveying process cannot be guaranteed only by the mode that the clamping block is clamped into the connecting groove. Therefore, the valve ball feeding device has the problem of poor conveying stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, provides a feeding mechanism for a valve ball in a semi-automatic ball valve assembling machine, and solves the problem of poor conveying stability.

The purpose of the utility model can be realized by the following technical scheme:

feed mechanism of valve ball in semi-automatic kludge of ball valve, including the base, fix the linear vibrator on the base and install the linear transport guide rail on the linear vibrator, the linear transport guide rail upside is equipped with the constant head tank of arranging along its length direction, its characterized in that, the linear transport guide rail on the side be connected with the baffle of arranging along its length direction in one side of constant head tank, the baffle can be adjusted and the distance between the constant head tank through the translation, still be connected with the limiting plate of arranging along its length direction on the linear transport guide rail, the limiting plate is located the opposite side of constant head tank and the limiting plate is close to one side upper end of constant head tank and has the flange, the flange is located constant head tank top and the limiting plate can reciprocate for the linear transport guide rail.

When the valve ball conveying device is used, the feeding end of the linear conveying guide rail is in butt joint with the vibration disc, the valve ball is sequentially conveyed to the linear conveying guide rail through the vibration disc, and then the linear vibrator drives the linear conveying guide rail to vibrate back and forth to realize linear conveying of the valve ball. In the conveying process, the valve ball is positioned in the positioning groove, and meanwhile the baffle is abutted against one side of the valve ball in the state and the convex plate of the limiting plate is abutted against the top surface of the valve ball in the state, so that the valve ball is prevented from shifting or separating in the conveying process, and the conveying stability is ensured.

The size of the valve ball is different when the specifications of the delivered valve ball are different, and the worker can adapt to the change of the specifications of the valve ball through the translation of the baffle and the up-down movement of the limiting plate: use the initial small-specification valve ball of carrying as an example, baffle to distance constant head tank is nearest this moment, and the height of the flange on the limiting plate is minimum simultaneously, and when needs carried big specification valve rod, the translation baffle increases its and the distance between the constant head tank earlier, then upwards removes the limiting plate again and makes the height of flange highly uprise for big specification valve ball also can remain stable when carrying, has improved the suitability.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the linear conveying guide rail is provided with a movable groove which penetrates through the linear conveying guide rail along the vertical direction, and the limiting plate is provided with a matching block which is inserted into the movable groove, can slide along the movable groove and can be fixed after sliding.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the lateral part of the matching block is provided with a first strip-shaped groove in a penetrating mode, the first strip-shaped groove is arranged in the vertical direction, and the matching block is connected with the linear conveying guide rail through a first connecting screw penetrating through the first rod-shaped groove and in threaded connection with the linear conveying guide rail.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the cross section of the baffle is L-shaped, the horizontal part of the baffle is positioned on one side of the vertical part of the baffle, which is far away from the positioning groove, the horizontal part of the baffle is provided with a strip-shaped groove II in a penetrating manner along the vertical direction, the strip-shaped groove II is arranged along the translation direction of the baffle, and the baffle is connected with the linear conveying guide rail through a connecting screw II, the rod part of which penetrates through the strip-shaped groove II and is in threaded connection with the linear conveying guide rail.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, a support is fixed at the bottom of the discharging end of the linear conveying guide rail, a first telescopic cylinder is fixed on the support, a bearing block is fixed at the upper end of a piston rod of the first telescopic cylinder, a matching groove which can be connected with the end part of the positioning groove when the piston rod of the first telescopic cylinder retracts downwards is arranged on the bearing block, a base plate is further fixed on the base, the base plate is located on one side of the linear vibrator, a mounting plate which is parallel to the base plate and can move along the vertical direction is connected to the base plate, a rotary cylinder is fixed on the mounting plate, a fixture which is driven to rotate by the rotary cylinder is connected to the rotary cylinder, two clamping jaws which can be close to or separated are arranged on the fixture, and the rotary cylinder can drive the fixture to rotate to a port part between the two clamping jaws to be opposite to the bearing block downwards.

The flexible distance of telescopic cylinder one is fixed unchangeable, consequently sets up the mounting panel into and removes along vertical direction for the base plate, can adjust the height of two clamping jaws to guarantee that the valve ball of whatever kind of specification can both be formed firm centre gripping by the accurate centre gripping of two clamping jaws on the anchor clamps on the assigned position, improved the stability of work.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the mounting plate is provided with a third strip-shaped groove in a penetrating manner along the vertical direction, and the mounting plate and the substrate are connected in a three-phase manner through a connecting screw of which the rod part penetrates through the third strip-shaped groove and is connected in the substrate in a threaded manner.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the upper end of the base plate is connected with a positioning plate perpendicular to the base plate, a second telescopic cylinder is connected onto the positioning plate, a suction nozzle is connected to the lower end of a piston rod of the second telescopic cylinder, the suction nozzle can translate along the length direction of the linear conveying guide rail, and the rotary cylinder can drive the clamp to rotate until the two clamping jaws are located under the suction nozzle and the direction of an opening between the two clamping jaws is perpendicular to the suction nozzle.

Through setting up the suction nozzle into the length direction translation that can follow the linear transport guide rail, can guarantee that the valve ball of no matter what kind of specification can both be adsorbed on same assigned position by the suction nozzle, further improved the stability of work.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the lower end part of the piston rod of the telescopic cylinder II is provided with a connecting block, a strip-shaped groove IV which is arranged along the length direction of the linear conveying guide rail penetrates through the suction nozzle, and the suction nozzle and the connecting block penetrate through the strip-shaped groove IV through the rod part and are connected with a connecting screw in the connecting block in a threaded manner.

In the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine, the upper side surface of the limiting plate and one end surface of the limiting plate, which is close to the first telescopic cylinder, are provided with oblique planes capable of yielding for the two clamping jaws when the clamp swings.

Compared with the prior art, the feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine is characterized in that the baffle and the limiting plate are arranged, the valve ball is positioned in the positioning groove, and meanwhile, the baffle supports against one side of the valve ball in the state and the convex plate of the limiting plate supports against the top surface of the valve ball in the state, so that the conveying stability is guaranteed. Simultaneously, the translation through the baffle and the reciprocating of limiting plate have guaranteed no matter big specification valve ball or little specification valve ball homoenergetic and have carried steadily.

Drawings

Fig. 1 is a schematic diagram of a feeding mechanism of a ball valve in the semi-automatic ball valve assembling machine.

Fig. 2 is a schematic diagram of a linear conveying part in a feeding mechanism of a ball valve in the semi-automatic ball valve assembling machine.

Fig. 3 is a schematic view of a linear transport rail.

Fig. 4 is a schematic diagram of the clamp in the feeding mechanism of the ball valve in the semi-automatic ball valve assembling machine.

Fig. 5 is a schematic diagram of the suction nozzle of the feeding mechanism of the ball valve in the semi-automatic ball valve assembling machine.

In the figure, 1, a base; 2. a linear vibrator; 3. a linear conveying guide rail; 3a, positioning grooves; 3b, a movable groove; 4. a baffle plate; 4a, a strip groove II; 5. a limiting plate; 5a, a convex plate; 5b, matching blocks; 5b1 and a first strip-shaped groove; 5c, a chamfer surface; 6. a first connecting screw; 7. a second connecting screw; 8. a support; 9. a telescopic cylinder I; 10. a bearing block; 10a, a matching groove; 11. a substrate; 12. mounting a plate; 12a, a third strip groove; 13. a rotating cylinder; 14. a clamp; 14a, a clamping jaw; 15. a third connecting screw; 16. positioning a plate; 17. a second telescopic cylinder; 18. a suction nozzle; 18a, a body; 18b, a flange plate; 18b1, bar groove four; 19. connecting blocks; 20. a fourth connecting screw; 21. a support plate; 22. and a third telescopic cylinder.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the feeding mechanism for the valve ball in the semi-automatic ball valve assembling machine comprises a base 1, a linear vibrator 2 fixed on the base 1, and a linear conveying guide rail 3 installed on the linear vibrator 2, wherein a positioning groove 3a arranged along the length direction of the linear conveying guide rail 3 is arranged on the upper side of the linear conveying guide rail 3. The upper side surface of the linear conveying guide rail 3 is connected with a baffle 4 arranged along the length direction of the positioning groove 3a at one side of the positioning groove, and the baffle 4 can adjust the distance between the baffle and the positioning groove 3a through translation. Still be connected with the limiting plate 5 of arranging along its length direction on the linear transport guide 3, limiting plate 5 is located the opposite side of constant head tank 3a and limiting plate 5 is close to one side upper end of constant head tank 3a and has flange 5a, and flange 5a is located constant head tank 3a top and limiting plate 5 can reciprocate for linear transport guide 3. Specifically, the linear conveying guide rail 3 is provided with a movable groove 3b penetrating in the vertical direction, and the limiting plate 5 is provided with a matching block 5b which is inserted into the movable groove 3b, can slide along the movable groove 3b and can be fixed after sliding. The side part of the matching block 5b is provided with a strip-shaped groove I5 b1 in a penetrating way, the strip-shaped groove I5 b1 is arranged along the vertical direction, and the matching block 5b is connected with the linear conveying guide rail 3 through a connecting screw I6 which penetrates through the rod part strip-shaped groove I5 b1 and is screwed in the linear conveying guide rail 3. When the first connecting screw 6 is screwed, the limiting plate 5 is fixed with the linear conveying guide rail 3; when the first connecting screw 6 is loosened, the limit plate 5 can move up and down by the sliding of the first strip-shaped groove 5b1 along the first connecting screw 6. The cross section of baffle 4 is the L type, and the horizontal part of baffle 4 is located 4 vertical parts of baffle and keeps away from one side of constant head tank 3a, and the horizontal part of baffle 4 runs through along vertical direction and is provided with bar groove two 4a, and bar groove two 4a arranges along the translation direction of baffle 4, and baffle 4 is connected through the connecting screw two 7 that bar groove two 4a and threaded connection were passed in linear transport guide 3 to pole portion with linear transport guide 3. When the second connecting screw 7 is screwed, the baffle 4 is fixed with the linear conveying guide rail 3; when the second connecting screw 7 is loosened, the baffle plate 4 can translate through the sliding of the second strip-shaped groove 4a along the second connecting screw 7.

As shown in fig. 1, 2 and 4, a support 8 is fixed at the bottom of the discharge end of the linear conveying guide rail 3, a first telescopic cylinder 9 is fixed on the support 8, a bearing block 10 is fixed at the upper end of a piston rod of the first telescopic cylinder 9, and a matching groove 10a which can be engaged with the end of the positioning groove 3a when the piston rod of the first telescopic cylinder 9 retracts downwards is arranged on the bearing block 10. The base 1 is further fixed with a base plate 11, the base plate 11 is located on one side of the linear vibrator 2, the base plate 11 is connected with an installation plate 12 which is parallel to the base plate and can move along the vertical direction, a rotary cylinder 13 is fixed on the installation plate 12, a clamp 14 which is driven to rotate by the rotary cylinder 13 is connected onto the rotary cylinder 13, two clamping jaws 14a which can be close to or separated from each other are arranged on the clamp 14, and the rotary cylinder 13 can drive the clamp 14 to rotate until an opening between the two clamping jaws 14a faces the bearing block 10 downwards. A strip-shaped groove III 12a penetrates through the mounting plate 12 along the vertical direction, and the mounting plate 12 and the substrate 11 are connected through a rod part passing through the strip-shaped groove III 12a and a connecting screw III 15 in the substrate 11 in a threaded connection mode. And the upper side surface of the limiting plate 5 and one end surface of the limiting plate 5, which is close to the first telescopic cylinder 9, are provided with oblique planes 5c capable of yielding for the two clamping jaws 14a when the clamp 14 swings.

As shown in fig. 1 and 5, the upper end of the substrate 11 is connected to a positioning plate 16 perpendicular thereto, a second telescopic cylinder 17 is connected to the positioning plate 16, a suction nozzle 18 is connected to the lower end of a piston rod of the second telescopic cylinder 17, the suction nozzle 18 can translate along the length direction of the linear conveying guide rail 3, and the rotary cylinder 13 can drive the clamp 14 to rotate until the two clamping jaws 14a are located right below the suction nozzle 18 and the mouth direction between the two clamping jaws 14a is perpendicular to the suction nozzle 18. Specifically, the lower end part of the piston rod of the second telescopic cylinder 17 is provided with a connecting block 19, the suction nozzle 18 comprises a cylindrical body 18a and a flange 18b sleeved outside the body 18a, a strip-shaped groove IV 18b1 penetrates through the flange 18b, and the suction nozzle 18 and the connecting block 19 are connected through a rod part, a connecting screw IV 20 penetrating through the strip-shaped groove IV 18b1 and screwed in the connecting block 19. Wherein, the body 18a is provided with an air hole penetrating the bottom, the side part of the flange 18b is provided with a through hole communicated with the air hole, and a negative pressure air source is connected with the through hole when in use, so that the end part of the suction nozzle 18 forms suction. In this embodiment, a supporting plate 21 slidably connected to the positioning plate 16 along the translation direction of the baffle 4, and a second telescopic cylinder 17 fixed to the supporting plate 21, wherein the positioning plate 16 is provided with a guide rail, and a slider capable of sliding along the guide rail is fixed to the supporting plate 21 and is driven by a third telescopic cylinder 22.

When the valve ball conveying device is used, the feeding end of the linear conveying guide rail 3 is butted with the vibration disc, the valve ball is sequentially conveyed to the linear conveying guide rail 3 through the vibration disc, and then the linear vibrator 2 drives the linear conveying guide rail 3 to vibrate back and forth to realize linear conveying of the valve ball. In the conveying process, the valve ball is partially embedded into the positioning groove 3a, and meanwhile, the baffle 4 abuts against one side of the valve ball in the state and the convex plate 5a of the limiting plate 5 abuts against the top surface of the valve ball in the state, so that the valve ball is prevented from shifting or separating in the conveying process, and the conveying stability is guaranteed. When the specification of the delivered valve ball is different, the size of the valve ball is also different, and a worker can adapt to the change of the specification of the valve ball through the translation of the baffle plate 4 and the up-down movement of the limiting plate 5: use the initial small-specification valve ball as an example, baffle 4 is nearest apart from constant head tank 3a this moment, and the height of the flange 5a on the limiting plate 5 is minimum simultaneously, and when needs carried big specification valve rod, the translation baffle 4 increases the distance between it and the constant head tank 3a earlier, then upwards moves limiting plate 5 and makes the height of flange 5a highly rise for big specification valve ball also can remain stable when carrying.

The matching groove 10a on the bearing block 10 is flush with the positioning groove 3a of the linear conveying guide rail 3 or is slightly lower than the positioning groove 3a in the initial stage, the opening part between the two clamping jaws 14a on the clamp 14 is in a state of facing the bearing block 10 downwards in the initial stage and the two clamping jaws 14a are in a far state, when a valve ball is conveyed onto the bearing block 10 and is partially embedded into the matching groove 10a, the piston rod of the telescopic cylinder I9 extends upwards to support the valve ball between the two clamping jaws 14a and the two clamping jaws 14a are close to each other to clamp the valve ball. The telescopic distance of the telescopic cylinder I9 is fixed and unchanged, if the specification of the valve ball is changed, the height of the two clamping jaws 14a can be adjusted through the mounting plate 12 along the vertical movement, and the valve ball of any specification can be accurately clamped by the two clamping jaws 14a on the clamp 14 to form firm clamping.

Then, the rotary air cylinder 13 drives the clamp 14 to rotate until the two clamping jaws 14a are located right below the suction nozzle 18 and the direction of the mouth between the two clamping jaws 14a is perpendicular to the suction nozzle 18 (the rotation angle of the clamp 14 in this embodiment is approximately 90 degrees), and then the piston rod of the telescopic air cylinder 17 extends downwards to make the end of the suction nozzle 18 contact with the valve ball and suck the valve ball by means of negative pressure. Then, the two clamping jaws 14a are far away from the position for releasing the valve ball, the rotary air cylinder 13 drives the clamp 14 to swing back to the initial state, and the supporting plate 21 translates to enable the suction nozzle 18 to suck the valve ball to another station to complete the loading of the valve ball. If the specification of the valve ball is changed, the position of the valve ball can be adjusted by the translation of the suction nozzle 18 along the length direction of the linear conveying guide rail 3, and the valve ball with any specification can be ensured to be adsorbed on the same appointed position by the suction nozzle 18.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. Feeding mechanism of valve ball in semi-automatic kludge of ball valve, including base (1), fix linear vibrator (2) on base (1) and install linear transport guide rail (3) on linear vibrator (2), linear transport guide rail (3) upside is equipped with constant head tank (3a) of arranging along its length direction, its characterized in that, linear transport guide rail (3) go up the side and be connected with baffle (4) of arranging along its length direction in one side of constant head tank (3a), baffle (4) can be through the translation adjust and the distance between constant head tank (3a), still be connected with limiting plate (5) of arranging along its length direction on linear transport guide rail (3), limiting plate (5) are located the opposite side of constant head tank (3a) and one side upper end that limiting plate (5) are close to constant head tank (3a) has flange (5a), flange (5a) are located constant head tank (3a) top and limiting plate (5) can be for linear transport guide rail (3a) (3) And move up and down.

2. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 1, wherein the linear conveying guide rail (3) is provided with a movable groove (3b) which penetrates through the linear conveying guide rail in the vertical direction, and the limiting plate (5) is provided with a matching block (5b) which is inserted into the movable groove (3b), can slide along the movable groove (3b) and can be fixed after sliding.

3. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 2, characterized in that a strip-shaped groove I (5b1) is arranged at the side of the matching block (5b) in a penetrating manner, the strip-shaped groove I (5b1) is arranged along the vertical direction, and the matching block (5b) is connected with the linear conveying guide rail (3) through a connecting screw I (6) which penetrates through the rod part strip-shaped groove I (5b1) and is in threaded connection with the linear conveying guide rail (3).

4. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 1, 2 or 3, characterized in that the cross section of the baffle (4) is L-shaped, the horizontal part of the baffle (4) is positioned on one side of the vertical part of the baffle (4) far away from the positioning groove (3a), the horizontal part of the baffle (4) is provided with a strip-shaped groove II (4a) in a penetrating manner along the vertical direction, the strip-shaped groove II (4a) is arranged along the translation direction of the baffle (4), and the baffle (4) and the linear conveying guide rail (3) are connected through a rod part, the rod part penetrates through the strip-shaped groove II (4a) and a connecting screw II (7) in the linear conveying guide rail (3) is in threaded connection.

5. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to the claim 1, 2 or 3, characterized in that a support (8) is fixed at the bottom of the discharging end of the linear conveying guide rail (3), a first telescopic cylinder (9) is fixed on the support (8), a bearing block (10) is fixed at the upper end of a piston rod of the first telescopic cylinder (9), a matching groove (10a) which can be connected with the end of the positioning groove (3a) when the piston rod of the first telescopic cylinder (9) retracts downwards is arranged on the bearing block (10), a base plate (11) is further fixed on the base (1), the base plate (11) is positioned at one side of the linear vibrator (2), a mounting plate (12) which is parallel to the base plate and can move along the vertical direction is connected on the base plate (11), a rotary cylinder (13) is fixed on the mounting plate (12), and a clamp (14) which is driven to rotate by the rotary cylinder (13) is connected on the rotary cylinder (13), two clamping jaws (14a) which can be close to or separated from each other are arranged on the clamp (14), and the rotary cylinder (13) can drive the clamp (14) to rotate until an opening between the two clamping jaws (14a) faces the bearing block (10) downwards.

6. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 5, characterized in that a strip-shaped groove III (12a) penetrates through the mounting plate (12) along the vertical direction, and the mounting plate (12) and the base plate (11) are connected through a connecting screw III (15) which is arranged at the rod part of the mounting plate (12) and penetrates through the strip-shaped groove III (12a) and is in threaded connection with the base plate (11).

7. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 5, characterized in that the upper end of the base plate (11) is connected with a positioning plate (16) perpendicular to the base plate, a second telescopic cylinder (17) is connected to the positioning plate (16), a suction nozzle (18) is connected to the lower end of a piston rod of the second telescopic cylinder (17), the suction nozzle (18) can translate along the length direction of the linear conveying guide rail (3), and the rotary cylinder (13) can drive the clamp (14) to rotate until the two clamping jaws (14a) are located under the suction nozzle (18) and the direction of the opening between the two clamping jaws (14a) is perpendicular to the suction nozzle (18).

8. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 7, characterized in that a connecting block (19) is arranged at the lower end part of the piston rod of the second telescopic cylinder (17), a strip-shaped groove four (18b1) arranged along the length direction of the linear conveying guide rail (3) is arranged on the suction nozzle (18) in a penetrating manner, and the suction nozzle (18) and the connecting block (19) are connected through a connecting screw four (20) of which the rod part penetrates through the strip-shaped groove four (18b1) and is in threaded connection in the connecting block (19).

9. The feeding mechanism of the valve ball in the semi-automatic ball valve assembling machine according to claim 7, wherein the upper side surface of the limiting plate (5) and one end surface of the limiting plate (5) close to the first telescopic cylinder (9) are provided with inclined planes (5c) capable of yielding for the two clamping jaws (14a) when the clamp (14) swings.