CN214352008U

CN214352008U - Be applied to oil pump tray location structure of assembly line

Info

Publication number: CN214352008U
Application number: CN202022056176.2U
Authority: CN
Inventors: 戎平; 俞佳诚
Original assignee: Shanghai Huayi Automobile Hybrid Power System Test Technology Co ltd
Current assignee: Shanghai Huayi Automobile Hybrid Power System Test Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-10-08
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses an oil pump tray positioning structure applied to an assembly line, which comprises a guide sleeve positioned on a support plate and a sliding sleeve which is sleeved on the guide sleeve and can relatively move up and down, wherein a sliding part is arranged in a hollow inner cavity of the guide sleeve, a sealing cover is arranged at the lower part of the guide sleeve, the upper end of a first spring arranged in the hollow inner cavity is abutted against the sliding part, and the lower end of the first spring is abutted against the sealing cover; a locking piece capable of protruding into the hollow inner cavity is arranged in the through hole on the inner wall of the guide sleeve; the periphery of the sliding part body is provided with a first avoidance space and a second avoidance space which are used for partially receiving a locking part protruding into the hollow inner cavity; the upper part of the sliding piece is abutted against a pin body inserted in a pin hole of the positioning plate; the inner wall of the sliding sleeve is provided with a concave part which is used for receiving a locking piece convex part which is extruded by the sliding piece and then protrudes out of the through hole; the sliding sleeve is fixedly connected with a pressing plate which can elastically move up and down after being elastically extruded; the upper end of a second spring sleeved on the guide sleeve and positioned below the sliding sleeve abuts against the lower end face of the sliding sleeve, and the lower end of the second spring abuts against the sealing cover.

Description

Be applied to oil pump tray location structure of assembly line

Technical Field

The utility model relates to a gearbox oil pump assembly technical field particularly, relates to an oil pump tray location structure who is applied to assembly line.

Background

The oil pump is a power source of the whole hydraulic system of the automatic gearbox and is generally directly driven by an engine. All automatic gearboxes have a front pump driven by the engine and some have a rear pump driven by the output shaft. Commonly used oil pumps include internal gear oil pumps, rotor oil pumps and vane oil pumps.

The oil pump of the gearbox is used for providing hydraulic pressure for operating the control valve and the clutch, quantitatively supplying gear oil in the gearbox and the differential case, and meanwhile, sending the gearbox oil to the cooler for circulating heat dissipation.

Therefore, the oil pump of the gearbox is an indispensable important part and is a tested piece needing offline testing after assembly.

On the other hand, the current oil pump assembly line is a semi-automatic production line, and on the line body, the tray bears the tested piece, and the function meets the assembly of manual stations and automatic stations. The general installation process is realized by a mechanism on a station, and the tray is only used as a bearing body and only needs to have precision and rigidity.

Most of the current trays only have the function of bearing a tested piece or have the function of placing and guiding the part of the tested piece. And current assembly line oil pump tray location structure can push away the oil pump gesture on the dish even and lean towards, and then be unfavorable for the assembly of oil pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art's the aforesaid not enough, provide a be favorable to the oil pump tray location structure of being applied to assembly line that the location equipment of oil pump and gesture keep on the tray.

The technical problem to be solved can be implemented by the following technical scheme.

The utility model provides an be applied to oil pump tray location structure of assembly line which characterized in that includes:

a guide sleeve (3) positioned in a positioning hole formed in a support plate (19), wherein the guide sleeve (3) is provided with a hollow inner cavity (33), a sliding part (10) which is matched with the inner diameter of the hollow inner cavity (33) and can move up and down is arranged in the hollow inner cavity, a sealing cover (2) is arranged at the lower part of the guide sleeve (3), the upper end of a first spring (7) placed in the hollow inner cavity (33) is abutted against the sliding part (10), and the lower end of the first spring (7) is abutted against the sealing cover (2); a through hole (31) is formed in the inner wall of the guide sleeve (3), and a locking piece (9) capable of protruding into the hollow inner cavity (33) is placed in the through hole (31); the periphery of the body of the sliding part (10) is provided with a first avoidance space (103) and a second avoidance space (104) which are used for partially receiving the locking part (9) protruding into the hollow inner cavity (33); the upper part of the sliding part (10) is abutted with a pin body (13), the pin body (13) is inserted into a pin hole of the positioning plate (20), and the length of the pin body (13) is greater than the depth of the pin hole; and

a sliding sleeve (6) sleeved on the guide sleeve (3) and capable of moving up and down relative to the guide sleeve (3), wherein a concave part (61) is arranged on the inner wall of the sliding sleeve (6) and used for receiving a convex part of the locking piece (9) which is extruded by the sliding piece (10) and then protrudes out of the through hole (31); the sliding sleeve (6) is fixedly connected with a pressing plate (8) which can elastically move up and down after being elastically extruded; and

and the second spring (4) is sleeved on the guide sleeve (3) and positioned at the lower part of the sliding sleeve (6), the upper end of the second spring (4) is abutted against the lower end face of the sliding sleeve (6), and the lower end of the second spring is abutted against the sealing cover (2).

As a further improvement of the technical scheme, the sliding part (10) is of a three-section step structure (stepped type) comprising an upper section, a middle section and a lower section, and the outer diameter of the upper section is matched with the inner diameter of the hollow inner cavity (33); the outer diameters of the upper section, the middle section and the lower section are gradually reduced, and the upper end of the first spring (7) is sleeved on the outer edge of the lower section of the sliding part (10).

As a further improvement of the technical scheme, a second avoidance space (104) is formed between the middle section of the sliding part (10) and the inner wall of the guide sleeve (3), the joint of the upper section and the middle section of the sliding part (10) is a transition inclined plane, and the transition inclined plane forms a guide surface which extrudes the locking part (9) outwards along the radial direction.

As a further improvement of the technical scheme, the first avoiding space is an annular groove formed in the outer edge of the upper section of the sliding part (10).

Further, the annular groove is a V-shaped groove, and the V-shaped surface of the annular groove forms a guide surface for pressing the locking piece (9) outwards in the radial direction.

As a further improvement of the technical scheme, the locking piece (9) is a ball or a ball pin.

Furthermore, when retaining member (9) are the ball, the aperture of through-hole (31) with the ball footpath of ball suits, the hole depth of through-hole (31) is less than the ball footpath of ball.

As a further improvement of the technical scheme, a cylindrical body (22) protruding out of the sealing cover body is arranged on the inner side of the sealing cover (2), and the lower part of the first spring (7) is sleeved on the cylindrical body.

As a further improvement of the technical scheme, the lower part of the pin body (13) is provided with a head part (131), and the outer diameter of the head part is larger than the bore diameter of the pin hole.

By adopting the technical scheme, the oil pump tray positioning structure applied to the assembly line solves the problem that the spring pin pushes the oil pump posture to be inclined after the positioning pin is pressed by retracting the pin body.

Drawings

FIG. 1 is a schematic view of the upper layer structure of a pallet;

FIG. 2 is a schematic view of the positioning structure of the oil pump tray of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;

in the figure: 1. a socket head cap screw;

2. a cover 21, an end face 22, a pillar 23, a bottom face;

3. a guide sleeve 31, a through hole 32, a positioning disc 33 and an inner cavity;

4. a spring (second spring) 5, a socket head cap screw;

6. a sliding sleeve 61, an avoidance space 62 and an end face;

7. a spring (first spring), 8, a pressure plate, 9 and a steel ball;

10. a top rod 101, a rod head 102, a step surface 103, an avoidance groove (a first avoidance space), 104 and an avoidance space (a second avoidance space);

11. a backing plate 12 and a limit sleeve;

13. straight rod type guide pin, 131, head;

14. the guide rod support 16, the bushing 17, the guide shaft 18 and the inner hexagon socket cap head screw 15;

19. a support plate 191, a positioning hole;

20. the device comprises a positioning plate 24, a compression spring 25, an oil suction cover 26, a middle plate 27, an oil pressing cover 28 and an inner hexagonal socket head screw.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

The positioning of the tested piece on the tray is in a universal one-side-two-pin mode. Referring to fig. 1, since the positioning pin needs to pass through the oil suction cover 25, the middle plate 26 and the oil pressing cover 27, the type selection of the positioning pin needs to be calculated through a size chain, so that the fit clearance between the positioning pin and the three parts is ensured to be proper, and the clearance does not influence the positioning accuracy and the installation fluency.

Referring to the oil pump tray positioning structure applied to the assembly line shown in fig. 2 and 3, a special spring positioning pin mechanism is provided to assist the installation. The concrete structure is as follows:

the supporting plate 19 is provided with a positioning hole 191, the upper part of the guide sleeve 3 is inserted into the positioning hole 191, and is fixedly connected with the supporting plate 19 into a whole through a positioning disc 32 (the structure is similar to a flange) protruding outwards along the radial direction and an inner hexagonal cylindrical screw 18. The guide sleeve 3 is provided with a hollow inner cavity 33, the upper part of the inner cavity is provided with a push rod 10 capable of sliding up and down, the upper part of the push rod 10 is abutted with the straight rod type guide pin 13, the pin body of the straight rod type guide pin 13 is inserted into the insertion hole of the positioning plate 20, and the lower part of the straight rod type guide pin 13 is provided with a head part 131 with the outer diameter larger than that of the pin body.

The ejector rod 10 is of a three-section step structure from top to bottom, the section with the thinnest outer diameter at the lowest part is a rod head 101, and an avoidance space 104 (a second avoidance space) is formed between the middle part and the inner wall of the guide sleeve 3. The steel ball 9 arranged on the through hole 31 formed on the inner wall of the guide sleeve 3 is a locking and positioning steel ball, and the outer diameter of the steel ball 9 is larger than the hole depth of the through hole 31; in the state illustrated in fig. 2, the inner portion of the steel ball 9 enters the avoiding space 104, thereby moderately restricting the downward sliding of the jack 10; because the step surface between the two ends of the top rod 10 is an inclined surface, when the steel ball 9 contacts with the inclined surface, the inclined surface forms a guide surface for extruding the steel ball outwards.

The sliding sleeve 6 is sleeved outside the guide sleeve 3 and keeps the sliding sleeve 6 and the guide sleeve 3 to slide relatively along the up-down direction. The sleeve body of the sliding sleeve 6 is placed in a positioning hole formed in the pressing plate 8, and the shoulder part of the lower part of the sliding sleeve 6 is further connected and fixed with the pressing plate 8 through the inner hexagonal socket head cap screw 5. The upper port of the inner cavity of the sliding sleeve 6 is provided with a concave inner wall, the concave part forms an avoiding space 61, when the sliding sleeve 6 moves up and down relative to the guide sleeve 3 to a set position, the outer side (right side in the figure) of the steel ball 9 can enter the avoiding space 61, and then the locking of the steel ball 9 on the ejector rod 10 is released.

The lower part of the guide sleeve 3 is blocked by the cover 2, and a convex pillar 22 is arranged on the bottom surface 23 (upward inner side surface in figure 2) of the cover 2 facing the inner cavity 33; the cover 2 is connected and positioned on the wall body of the guide sleeve 3 through an inner hexagonal socket head cap screw 1.

The upper part of the spring 7 (first spring) is sleeved on the club head 101, and the upper end part of the spring abuts against a step surface 102 formed by a step structure of the club body 10; the lower part of the spring 7 is sleeved on the table post 22, and the lower side end part of the spring is abutted against the bottom surface 23.

The other spring 4 (second spring) is sleeved on the lower end part of the guide sleeve 3, the upper part of the spring is abutted against the lower end surface 62 of the sliding sleeve 6, and the lower part of the spring 4 is abutted against the upper end surface 21 of the cover 2.

Wherein, a backing plate 11 can be padded between the head 131 of the straight rod type guide pin 13 and the mandril 10, and the upper limit position and the lower limit position of the straight rod type guide pin 13 can be further adjusted by adjusting or replacing the thickness of the backing plate 11; meanwhile, a limiting sleeve 12 can be sleeved outside the head 131 for further matching adjustment; for example, the upper portion of the stopper 12 may be kept in contact with the lower end surface of the positioning plate 20 while keeping the step surface of the upper portion of the head 131 out of contact with the lower end surface of the positioning plate 20, and at this time, the portion of the straight rod type guide pin 13 protruding from the upper portion of the positioning plate 20 may be shortened accordingly. Of course, the backing plate 11 may be partially or completely positioned in a recess formed in the top of the carrier rod 10.

In addition, another avoidance groove 103 which can be used as a first avoidance space may be formed on the rod body of the ejector rod 10, and as shown in the figure, the groove surface of the avoidance groove 103 includes an upper inclined surface and a lower inclined surface (for example, two V-shaped surfaces of an annular V-shaped groove); like the avoidance space 104 (second avoidance space), the avoidance groove may form, in combination with the steel ball 9, another relative locking position of the ejector pin 10 during vertical displacement; namely, the spring 7 is pressed, the mandril 10 is downward, the outer side (right side in the figure) of the steel ball 9 is abutted against the inner wall of the sliding sleeve 6, and the inner side (left side in the figure) of the steel ball 9 is protruded into the avoiding groove 103; at this time, the straight rod type guide pin 13 moves downward, for example, the pin body can be moved upward without extending out of the positioning plate 20.

In order to facilitate the control of the up-and-down displacement of the sliding sleeve 6, a bush 16 is arranged in a positioning hole at the left side of the pressing plate 8 connected with the bush 16, and a compression spring 24 is sleeved on the bush 16; the flexible control of the up-and-down displacement of the sliding sleeve 6 is realized by the tension state change of the compression spring 24, and the inner guide shaft 17 of the bushing 16, the lower guide rod support 15 and the socket head cap screws 14 and 28 are further illustrated. Of course, the control part of the up-and-down displacement of the pressing plate 8 is not the key content of the present invention, and will not be described in detail herein; the present invention relates in part to the right hand side of figure 2.

It should be noted that, because the two avoiding/locking portions of the rod body 10 corresponding to the steel balls 9 have inclined guide surfaces, and the position of the sliding sleeve 6 is difficult to maintain (i.e. the aforementioned flexible control portion) after the sliding sleeve is acted by the up-and-down force, the so-called "locking" of the steel balls 9 to the push rod 10 is not a complete locking, but only plays a relative position limiting role in the up-and-down displacement process.

The above structural design of the utility model is based on assembly process's reason, the locating pin of the measured piece that discovers when the design needs the pressure equipment to get into the measured piece, and then, the spring pin structure need be made to the pin of oil absorption lid in the location.

And because the spring pin (tray) can exert an upward force to push the posture of the oil pump to be deflected after the positioning pin (tested piece) is pressed, the spring pin also needs to be additionally provided with a locking and positioning mechanism with the structure, and the spring pin mechanism is locked after the positioning pin (tested piece) is pressed to remove the upward spring force.

In the figure, the downward displacement of the straight bar type guide pin 13 is realized by a servo press, and the spring 7 is compressed under the force, and the working force of the spring is about 30N. Meanwhile, the mechanism compressing piece (namely, the structure that the pressure plate 8 can be vertically displaced under the action of the spring) arranged on the station has the working force of about 35N of the spring 4. The steel ball 9 falls into the groove of the sliding sleeve 6 (namely, the steel ball is avoided from the space 61), the ejector rod 10 loses the clamping of the steel ball and starts to slide downwards until the steel ball 9 falls into the groove of the ejector rod 10 (namely, the steel ball is avoided from the groove 103), then the pressure of the pressing plate 8 is released, the sliding sleeve 6 returns to the original position again, and the spring pin (namely, the straight rod type guide pin 13 in the figure) is locked.

Through the mechanism/structure, the spring pin is locked, and the situation that the assembly posture of a workpiece is changed due to the spring pin is avoided. The utility model discloses an oil pump tray has solved and has compressed tightly the locating pin after, the spring catch pushes up inclined to one side problem with the oil pump gesture (because the reason of withdrawal). In addition, the steel ball can also be replaced by a cylindrical pin with spherical ends, and at the moment, the wall thickness of the guide sleeve can be increased.

Claims

1. The utility model provides an oil pump tray location structure for assembly line which characterized in that includes:

2. The oil pump tray positioning structure applied to an assembly line according to claim 1, wherein the slider (10) is a three-stage step structure including an upper stage, a middle stage and a lower stage, the outer diameter of the upper stage matching the inner diameter of the hollow inner cavity (33); the outer diameters of the upper section, the middle section and the lower section are gradually reduced, and the upper end of the first spring (7) is sleeved on the outer edge of the lower section of the sliding part (10).

3. The oil pump tray positioning structure applied to the assembly line according to claim 2, characterized in that the second avoiding space (104) is formed between the middle section of the sliding member (10) and the inner wall of the guide sleeve (3), and the joint of the upper section and the middle section of the sliding member (10) is a transitional inclined surface which forms a guide surface for pressing the locking member (9) radially outwards.

4. The oil pump tray positioning structure applied to an assembly line according to claim 2 or 3, wherein the first avoiding space is an annular groove formed in an outer edge of the upper section of the sliding member (10).

5. Oil pump tray positioning structure applied to an assembly line according to claim 4, characterized in that said annular groove is a V-shaped groove, the V-shaped surface of which forms a guide surface pressing said locking member (9) radially outwards.

6. Oil pump tray positioning structure applied to an assembly line according to claim 1, characterized in that the locking piece (9) is a ball or a ball stud.

7. Oil pump tray positioning structure applied to assembly line according to claim 6, characterized in that when the locking piece (9) is a ball, the aperture of the through hole (31) is adapted to the diameter of the ball, and the depth of the through hole (31) is smaller than the diameter of the ball.

8. Oil pump tray positioning structure applied to an assembly line according to claim 1, characterized in that said cover (2) has inside a cylindrical body (22) projecting from the cover body, the lower part of said first spring (7) being fitted over said cylindrical body.

9. The oil pump tray positioning structure applied to an assembly line according to claim 1, wherein the lower portion of the pin body (13) has a head portion (131) having an outer diameter larger than a bore diameter of the pin hole.