Double-station steel ball press-fitting airtightness detection device for left box cover

Abstract

The utility model discloses a left box cover double-station steel ball press-fitting airtightness detection device which is characterized in that the left box cover double-station steel ball press-fitting airtightness detection device comprises a rack, a mounting bedplate is arranged in the middle of the rack, a sealing assembly and two press-fitting assemblies are arranged on the mounting bedplate, and the two press-fitting assemblies are symmetrically arranged on the two sides of the sealing assembly; the sealing assembly comprises a sealing mounting plate arranged on the mounting table plate, a sealing bottom plate is arranged above the sealing mounting plate, a positioning block is arranged on the sealing bottom plate, a first sealing ring, a second sealing ring and a third sealing ring are arranged on the sealing bottom plate, and a concave inflation cavity is formed in the top surface of the sealing bottom plate; the beneficial effects of the utility model are that a cavity air tightness detection device and an oil duct detection device of a left box cover assembly are integrated with steel ball press fitting, so that air tightness detection and steel ball press fitting can be carried out at the same time, the steel ball press fitting, the cavity air tightness detection and the oil duct air tightness detection of a product can be satisfied through one-time clamping, the device and labor investment is saved, and the production efficiency is improved. And the production efficiency of products is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, specifically to a dual-station steel ball press-fit airtightness testing device for the left box cover. Background Technology

[0002] The development of the new product, the left box cover assembly, requires steel ball pressing, cavity airtightness testing, and oil passage airtightness testing. According to the existing process plan, steel ball pressing is usually done by press press; cavity airtightness testing and oil passage airtightness testing are done by airtightness testing machine. A total of two machines are required to complete the process, so the clamping is required twice. The operation of the two machines requires two people, which results in high labor costs and low work efficiency. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this utility model provides a dual-station steel ball press-fit airtightness testing device for the left box cover. It has a simple structure and can achieve airtightness testing and steel ball press-fitting in one clamping operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dual-station steel ball press-fit airtightness testing device for a left box cover, characterized in that: it includes a frame, with a mounting platform in the middle of the frame, a sealing component and two press-fit components arranged on the mounting platform, wherein the two press-fit components are symmetrically arranged on both sides of the sealing component, the sealing component includes a sealing mounting plate disposed on the mounting platform, a sealing base plate disposed above the sealing mounting plate, a shim block disposed between the sealing base plate and the sealing mounting plate, a positioning block disposed on the sealing base plate, a first sealing ring corresponding to the edge of the left box cover disposed on the sealing base plate, a second sealing ring disposed on the top surface of the positioning block, and a third sealing ring disposed on the sealing base plate corresponding to the through hole on the left box cover. The top surface has a recessed inflation cavity, and the sealing base plate has an inflation channel communicating with the inflation cavity. A vertically lifting pressure plate is provided directly above the sealing base plate, and multiple elastic pressure rods are distributed on the bottom surface of the pressure plate. The pressing assembly includes a pressing mounting plate provided on the mounting platform, a pressing pad provided on the pressing mounting plate, a horizontally sliding pressing slide provided on the pressing pad, a steel ball guide seat provided at one end of the pressing slide, and a horizontally moving pressing rod provided at the other end of the pressing slide. The steel ball guide seat and the pressing slide have a steel ball pressing channel pointing to the pressing hole of the left cover. The front end of the pressing rod slides in cooperation with the pressing channel. A steel ball filling mechanism is provided above the pressing slide.

[0006] Furthermore, an auxiliary positioning block is provided on the sealing base plate.

[0007] Furthermore, a top plate is provided on the mounting platform via columns, a pressure plate lifting cylinder for driving the pressure plate is provided on the top plate, a guide device is provided between the pressure plate and the top plate, and a booster cylinder for pressing the top surface of the pressure plate is also provided on the top plate.

[0008] Furthermore, the elastic pressure rod includes a spring seat, a spring, a connecting rod, a pressure rod, and a pressure head connected sequentially from top to bottom. The spring seat is disposed on the pressure plate, the connecting rod is slidably engaged with the spring seat, the spring is sleeved on the connecting rod, the lower end of the connecting rod is connected to the pressure rod, and the pressure head is connected to the lower end of the pressure rod. The pressure head is a nylon block.

[0009] Furthermore, a linear guide rail is provided on the pressing pad, and the pressing slide is mounted on the linear guide rail via a slider. A pressing electric cylinder is provided on the pressing pad, and the front end of the piston rod of the pressing electric cylinder is connected to a pressing rod slide. The pressing rod slide is mounted on the linear guide rail via a slider, and the pressing rod is mounted on the pressing rod slide. A push rod is provided on the pressing slide, and the other end of the push rod slides through the pressing rod slide. A return spring is sleeved on the push rod, and both ends of the return spring are limited between the pressing slide and the pressing rod slide.

[0010] Furthermore, a limit pin is provided at one end of the push rod.

[0011] Furthermore, a steel ball filling bracket is provided on the press-fitting mounting plate, a steel ball storage box is provided on the top surface of the steel ball filling bracket, and a pushing mechanism is provided below the steel ball storage box.

[0012] Furthermore, the pushing mechanism includes a first guide tube, a pushing chute, a pushing slider, a pushing cylinder, and a second guide tube. The upper end of the first guide tube is located at the bottom of the steel ball storage box, and the lower end of the first guide tube is close to the upper surface of the pushing slider. The pushing slider is horizontally slidably disposed in the pushing chute. The piston rod of the pushing cylinder is connected to the pushing slider. The pushing slider has a steel ball receiving hole through which steel balls can pass. The bottom of one end of the pushing chute has a vertically penetrating steel ball drop hole. The second guide tube is disposed at the bottom of the pushing chute, and the second guide tube is directly opposite the steel ball drop hole. The lower end of the second guide tube extends above the press-fitting slide.

[0013] Furthermore, the pushing chute and the pushing cylinder are mounted on the steel ball filling bracket via a mounting base plate. The piston rod of the pushing cylinder is provided with a limit slider at its front end, and the end and side of the pushing cylinder are provided with limit blocking blocks that contact the limit slider.

[0014] Furthermore, a control panel is provided on the frame, and a grating is provided at the front of the frame.

[0015] The beneficial effects of this utility model include: integrating the cavity airtightness testing and oil passage testing equipment of the left box cover assembly into steel ball pressing, which allows for simultaneous airtightness testing and steel ball pressing, achieving the goal of satisfying steel ball pressing, cavity airtightness testing, and oil passage airtightness testing in a single clamping, saving equipment and labor input, and improving product production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sealing component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the press-fit assembly structure of this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] One such Figure 1-3 The dual-station steel ball press-fit airtightness testing device for the left cover shown includes a frame 1. A mounting platform is located in the middle of the frame 1. One sealing assembly and two press-fitting assemblies are mounted on the mounting platform, with the two press-fitting assemblies symmetrically arranged on both sides of the sealing assembly. The sealing assembly includes a sealing mounting plate 2 mounted on the mounting platform, a sealing base plate 3 above the sealing mounting plate, and a shim 4 between the sealing base plate 3 and the sealing mounting plate 2 to ensure the left cover meets the press-fitting height. Two positioning blocks 5 are provided on the sealing base plate 3 to position the two bearing holes of the left cover. A first sealing ring 6 corresponding to the edge of the left cover is provided on the sealing base plate 3 to completely seal the edge of the left cover. A second sealing ring 7 is provided on the top surface of the positioning blocks 5 to seal the oil passages. A third sealing ring 8 corresponding to the through holes on the left cover is provided on the sealing base plate 3 to keep the cavity closed. The top surface of the sealing base plate 3 has a recessed inflation cavity 9, and the sealing base plate 3 has an inflation channel 10 communicating with the inflation cavity 9. An airtightness testing device inflates the inflation cavity and maintains pressure for a period of time to determine if there is any leakage. To ensure a tight fit between the left cover and the sealing ring and prevent movement, a vertically lifting pressure plate 11 is provided directly above the sealing base plate 3. Multiple elastic pressure rods 12 are distributed on the bottom surface of the pressure plate 11; these elastic pressure rods press the left cover tightly from the top surface. To ensure stable movement of the lifting pressure plate, a guide rod is provided between the pressure plate 12 and the sealing mounting plate 2. To prevent excessive downward pressure on the pressure plate 12, limit rods are provided at the four corners of the pressure plate 12 in this embodiment.

[0021] The press-fit assembly includes a press-fit mounting plate 20 mounted on a mounting platform. A press-fit pad 21 is mounted on the press-fit mounting plate 20, and a horizontally sliding press-fit slide 22 is mounted on the press-fit pad 21. A steel ball guide 23 is mounted at one end of the press-fit slide 22, and a horizontally movable press-fit rod 24 is mounted at the other end. The steel ball guide 23 and the press-fit slide 22 have a steel ball press-fit channel pointing towards the press-fit hole of the left cover. The front end of the press-fit rod 24 slides within the press-fit channel; moving the press-fit rod 24 forward presses the steel ball entering the press-fit channel onto the left cover. To ensure repeatable press-fitting action, a steel ball filling mechanism is provided above the press-fit slide 22 in this embodiment.

[0022] To facilitate the positioning of the left cover assembly, an auxiliary positioning block 13 is provided on the sealing base plate 3 in this embodiment. The edge of the auxiliary positioning block 13 that contacts the left cover assembly has a contoured structure. To ensure that the left cover assembly is subjected to balanced forces during steel ball pressing and to prevent displacement, the auxiliary positioning block 13 is located on the edge opposite to the pressing hole of the left cover assembly, thereby providing a reverse pressing support force.

[0023] like Figure 2 The mounting platform shown has a top plate 14 mounted on a column, and a pressure plate lifting cylinder 15 for driving the pressure plate 11 is mounted on the top plate 14. A guide device is provided between the pressure plate 11 and the top plate 14. The guide device includes guide rods located at the four corners of the top surface of the pressure plate 11, and linear bearings that slide with the guide rods are mounted on the top plate 14. A booster cylinder 16 is also provided on the top plate 14 to press the top surface of the pressure plate 11. When pressing the left cover, the pressure plate 11 is first lowered so that the spring rod 12 is in contact with the top surface of the left cover, and then the piston rod of the booster cylinder 16 presses the top surface of the pressure plate 11.

[0024] Furthermore, the elastic pressure rod 12 includes a spring seat 120, a spring 121, a connecting rod 122, a pressure rod 123, and a pressure head 124 connected sequentially from top to bottom. The spring seat 120 is disposed on the pressure plate 11, and the connecting rod 122 is slidably engaged with the spring seat 120, with a space for movement between the connecting rod 122 and the spring seat 120. The spring 121 is sleeved on the connecting rod 122. The lower end of the connecting rod 122 is connected to the pressure rod 123, and the pressure head 124 is connected to the lower end of the pressure rod 123. The pressure head 124 is a nylon block, which can prevent the top surface of the left box cover from being damaged by pressure.

[0025] like Figure 3As shown, a linear guide rail 25 is provided on the pressing pad 21, and a pressing slide 22 is mounted on the linear guide rail 25 via a slider. A pressing electric cylinder 26 is provided on the pressing pad 21, and the front end of the piston rod of the pressing electric cylinder 26 is connected to a pressing rod slide 27. The pressing rod slide 27 is mounted on the linear guide rail 25 via a slider, wherein the pressing slide 22 is located in front of the pressing rod slide 27. A pressing rod 24 is provided on the pressing rod slide 27, and a push rod 28 is provided on the pressing slide 22. The other end of the push rod 28 slides through the pressing rod slide 27, and a return spring is sleeved on the push rod 28. The two ends of the return spring are limited between the pressing slide 22 and the pressing rod slide 27. When the piston rod of the press-fitting electric cylinder 26 extends, the pressure rod slide 27 and the press-fitting slide 22 move forward together due to the action of the return spring. When the steel ball guide seat 23 located on the press-fitting slide 22 abuts against the left cover, the press-fitting slide 22 stops, and the pressure rod slide 27 continues to move closer to the press-fitting slide 22, so that the press-fitting rod 24 presses the steel ball in the press-fitting slide 22 into the press-fitting hole of the left cover assembly.

[0026] The piston rod of the press-fitting electric cylinder 26 retracts, and the press-fitting rod 24 retracts. To prevent the push rod 28 from disengaging from the press rod slide 27, a limit pin 29 is provided at one end of the push rod 28.

[0027] Furthermore, a steel ball filling bracket 30 is provided on the press-fitting mounting plate 20, a steel ball storage box 31 is provided on the top surface of the steel ball filling bracket 30, and a pushing mechanism is provided below the steel ball storage box 31. The feeding mechanism includes a first guide tube 32, a feeding chute 33, a feeding slider 34, a feeding cylinder 35, and a second guide tube 36. The upper end of the first guide tube 32 is located at the bottom of the steel ball storage box 31, and the lower end of the first guide tube 32 is close to the upper surface of the feeding slider 34. The feeding slider 34 is horizontally slidably located in the feeding chute 33. The piston rod of the feeding cylinder 35 is connected to the feeding slider 34. The feeding slider 34 has a steel ball receiving hole for steel balls to pass through. The bottom of one end of the feeding chute 33 has a vertically penetrating steel ball drop hole. The second guide tube 36 is located at the bottom of the feeding chute 33 and is directly opposite the steel ball drop hole. The lower end of the second guide tube 36 extends above the press-fitting slide 22. The steel balls in the steel ball storage box 31 automatically enter the first guide tube 32. When the pusher slider 34 moves backward and its steel ball receiving groove is aligned with the first guide tube 32, a steel ball falls into the steel ball receiving hole. When the pusher slider 34 moves forward and its steel ball receiving hole is aligned with the steel ball dropping hole on the pusher slide 33, the steel ball enters the second guide tube 36. Further, when the pressing slide 22 moves below the second guide tube 36, the steel ball enters the steel ball pressing channel.

[0028] The pusher chute 33 and the pusher cylinder 35 are mounted on the steel ball filling bracket 30 via the mounting base plate 37. The piston rod of the pusher cylinder 35 is provided with a limit slider 38 at the front end, and the end and side of the pusher cylinder 35 are provided with limit blocking blocks 39 that contact the limit slider 38.

[0029] like Figure 1 As shown, the frame 1 is equipped with a control panel 40 and buttons, and a light grating 41 is provided at the front of the frame 1 to ensure worker safety.

[0030] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A left box cover double position steel ball press-fitting air tightness detection device, characterized in that: The utility model provides a kind of sealing and pressing assembly of left box cover, including rack (1), the installation platform is provided with in the middle of the rack (1), a sealing assembly and two pressing assemblies are arranged on the installation platform, wherein two pressing assemblies are symmetrically arranged on the two sides of the sealing assembly, the sealing assembly includes the sealing mounting plate (2) arranged on the installation platform, the sealing bottom plate (3) is arranged above the sealing mounting plate, the sealing bottom plate (3) and sealing mounting plate (2) between are provided with spacer block (4), the sealing bottom plate (3) is provided with locating block (5), the sealing bottom plate (3) is provided with the first sealing ring (6) corresponding to left box cover edge, the top surface of the locating block (5) is provided with second sealing ring (7), the sealing bottom plate (3) is provided with the third sealing ring (8) corresponding to left box cover upper through-hole, the top surface of the sealing bottom plate (3) has recessed inflation cavity (9), the sealing bottom plate (3) has inflation channel (10) that communicates the inflation cavity (9), the sealing bottom plate (3) is provided with vertically lifting pressing plate (11) opposite top, the bottom surface of the pressing plate (11) is distributed with multiple elastic pressing rods (12);The pressing assembly includes the pressing mounting plate (20) arranged on the installation platform, the pressing pad (21) is arranged on the pressing mounting plate (20), the horizontally sliding pressing slide (22) is arranged on the pressing pad (21), one end of the pressing slide (22) is provided with steel ball guide seat (23), the other end of the pressing slide (22) is provided with horizontally moving pressing rod (24), the steel ball guide seat (23) and the pressing slide (22) have steel ball pressing channel that points to left box cover pressing hole, the front end of the pressing rod (24) is slidably connected with the pressing channel, the top of the pressing slide (22) is provided with steel ball filling mechanism.

2. The left box cover double-station steel ball press-fitting and air tightness detection device according to claim 1, characterized in that: The sealing bottom plate (3) is provided with auxiliary locating block (13).

3. The left box cover double-station steel ball press-fitting and air tightness detection device according to claim 1, characterized in that: The installation platform is provided with top plate (14) by stand, the top plate (14) is provided with pressing plate lifting pneumatic cylinder (15) for driving the pressing plate (11), guiding device is provided between the pressing plate (11) and the top plate (14), the top plate (14) is also provided with booster cylinder (16) for pressing the top surface of the pressing plate (11).

4. The left box cover double position steel ball press-fitting air tightness detection device according to claim 1, characterized in that: The elastic pressing rod (12) includes spring seat (120), spring (121), connecting rod (122), pressing rod (123) and pressure head (124) connected in sequence from top to bottom, wherein the spring seat (120) is arranged on the pressing plate (11), the connecting rod (122) is slidably connected with the spring seat (120), the spring (121) is sleeved on the connecting rod (122), the lower end of the connecting rod (122) is connected with the pressing rod (123), the pressure head (124) is connected to the lower end of the pressing rod (123), and the pressure head (124) is a nylon block.

5. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 1, characterized in that: The pressing pad (21) is provided with a linear guide rail (25), the pressing slide (22) is arranged on the linear guide rail (25) through a sliding block, the pressing pad (21) is provided with a pressing electric cylinder (26), the front end of the piston rod of the pressing electric cylinder (26) is connected with a pressing rod slide (27), the pressing rod slide (27) is arranged on the linear guide rail (25) through a sliding block, the pressing rod (24) is arranged on the pressing rod slide (27), the pressing slide (22) is provided with a jacking rod (28), the jacking rod (28) slides through the pressing rod slide (27) at the other end, a reset spring is sleeved on the jacking rod (28), and the two ends of the reset spring are limited between the pressing slide (22) and the pressing rod slide (27).

6. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 5, characterized in that: The jacking rod (28) is provided with a limit pin (29) at one end.

7. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 1, characterized in that: The pressing mounting plate (20) is provided with a steel ball filling support (30), the top surface of the steel ball filling support (30) is provided with a steel ball storage box (31), and the lower part of the steel ball storage box (31) is provided with a pushing mechanism.

8. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 7, characterized in that: The pushing mechanism comprises a first material guide pipe (32), a pushing chute (33), a pushing sliding block (34), a pushing cylinder (35) and a second material guide pipe (36), wherein the upper end of the first material guide pipe (32) is arranged at the bottom of the steel ball storage box (31), the lower end of the first material guide pipe (32) is close to the upper surface of the pushing sliding block (34), the pushing sliding block (34) is horizontally and slidingly arranged in the pushing chute (33), the piston rod of the pushing cylinder (35) is connected with the pushing sliding block (34), the pushing sliding block (34) has a steel ball containing hole through which the steel ball passes, the bottom of one end of the pushing chute (33) has a vertical steel ball falling hole, the second material guide pipe (36) is arranged at the bottom of the pushing chute (33), the second material guide pipe (36) is opposite to the steel ball falling hole, and the lower end of the second material guide pipe (36) extends above the pressing slide (22).

9. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 8, characterized in that: The pushing chute (33) and the pushing cylinder (35) are arranged on the steel ball filling support (30) through a mounting seat plate (37), the front end of the piston rod of the pushing cylinder (35) is provided with a limit sliding block (38), and the end and the side of the pushing cylinder (35) are provided with limit blocking blocks (39) in contact with the limit sliding block (38).

10. The left case cover double-station steel ball press-fitting and air tightness detection device according to claim 1, characterized in that: The rack (1) is provided with a control panel (40), and the front part of the rack (1) is provided with a grating (41).

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