Multi-bolt tooling for simultaneous installation of automotive engine valve cover

Abstract

This invention relates to the field of automotive engine valve cover installation technology, and more particularly to a tooling for simultaneously installing multiple bolts on an automotive engine valve cover. The technical solution includes: a lower base plate for positioning each bolt; a first gear assembly mounted on the lower base plate and corresponding to each bolt; a second gear assembly with several mutually transmitting gear sets, each gear set meshing with a corresponding first gear assembly; and a following lifting mechanism that automatically lifts and lowers itself through a transmission connection with a single first gear assembly to accommodate the bolt tightening action. This invention, through the transmission rotation between the first and second gear assemblies and the vertical lifting achieved by the following lifting mechanism, enables all bolts to rotate and lift synchronously, allowing for simultaneous installation onto the valve cover and valve housing, significantly improving bolting efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive engine valve cover installation technology, and more particularly to a multi-bolt fixture for simultaneously installing automotive engine valve cover. Background Technology

[0002] The valve chamber of an automotive engine refers to the cavity space where the valve ends are located in the engine structure. It includes the main housing and its top cover. The valve cover is installed and connected to the main housing by multiple bolts.

[0003] Existing automotive engine valve cover installation methods involve manually or using a robotic arm to tighten each bolt sequentially. Since valve cover installation requires a large number of bolts, this manual tightening process is time-consuming and labor-intensive, significantly reducing installation efficiency. Therefore, this invention proposes a multi-bolt fixture for simultaneously installing automotive engine valve cover. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background art by proposing a multi-bolt tooling for simultaneously installing valve cover of an automobile engine.

[0005] The technical solution of the present invention: a multi-bolt fixture for simultaneously mounting a valve cover of an automobile engine, comprising a lower base plate for positioning each bolt; a first gear assembly, which is mounted on the lower base plate and corresponds one-to-one with each bolt; a second gear assembly, which is provided with several mutually driving gear sets, and each gear set meshes with a corresponding first gear assembly; and a following lifting mechanism, which achieves automatic lifting through a transmission connection with a single first gear assembly to adapt to the tightening action of the bolts.

[0006] Optionally, it includes an upper base plate for mounting the second gear assembly and a drive motor mounted on the upper base plate for driving the second gear assembly.

[0007] Optionally, the first gear assembly includes a column, the top of which is fixedly connected to a first gear, and both the first gear and the column are provided with nut grooves that match the shape of bolt nuts.

[0008] Optionally, the gear set includes a gear shaft rotatably connected to the upper base plate, wherein the top end of a single gear shaft is fixedly connected to the output shaft of a drive motor, a second gear capable of meshing with a first gear is fixedly connected to the bottom end of the gear shaft, and a plurality of third gears are fixedly sleeved in the middle of the gear shaft, and adjacent third gears are connected by a transmission chain.

[0009] Optionally, the accompanying lifting mechanism includes a fourth gear fixedly connected to a single first gear assembly and a fixed bushing fixed to the edge surface of the lower base plate. A fifth gear is rotatably connected to the upper part of the fixed bushing. The fifth gear is connected to the fourth gear via a chain belt, and the inner ring surface of the fifth gear is helically connected to the top end of a threaded adjusting shaft. The threaded adjusting shaft is vertically slidably engaged with the fixed bushing, and a T-shaped bushing seat is helically sleeved at the bottom end of the fixed bushing.

[0010] Optionally, a bolt-retrieving mechanism may be included, which includes a bolt box for storing bolts.

[0011] Optionally, the bottom of the bolt box has several material outlets, and the lower surface of the bottom of the bolt box is provided with a material pick-up nozzle at each material outlet.

[0012] Optionally, the bottom end of the feeding nozzle is provided with a rubber constriction to prevent the bolt from falling off directly.

[0013] Optionally, the bolt removal mechanism further includes a dispersion shaft and a sixth gear. The sixth gear is rotatably connected to the upper surface of the lower base plate and meshes with a first gear assembly in an adjacent position. The top end of the dispersion shaft movably passes through the bolt box and is fixedly connected to a dispersion blade.

[0014] Optionally, the bolt removal mechanism further includes a support column with one end fixedly connected to the bolt box and the other end movably fitted with a T-shaped bushing.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This application enables all bolts to rotate and rise synchronously through the transmission rotation between the first gear assembly and the second gear assembly, as well as the vertical lifting achieved through the accompanying lifting mechanism, so that they can be installed onto the valve cover and the valve main housing at the same time, which greatly improves the bolting efficiency. Furthermore, the bolt-retrieving mechanism is designed to store bolts to be tightened and eject several bolts as needed, allowing operators to easily retrieve them individually and avoiding the problem of operators being pricked by the tangled bolts when handling them from inside the box. The design of the dispersion shaft and sixth gear, combined with the bolt-loading action in Embodiment 1, can stir and disperse the bolts within the bolt box, facilitating their ejection from the dispensing nozzle. Attached Figure Description

[0016] Figure 1 A schematic diagram of a tooling system for simultaneously installing multiple bolts on the valve cover of an automobile engine. Figure 2 for Figure 1 A schematic diagram of the structure after the bolt is screwed into the bolt hole; Figure 3 for Figure 1A schematic diagram of the structure after the upper and middle substrates are separated upwards; Figure 4 for Figure 3 A schematic diagram of the structure after removing the upper substrate; Figure 5 This is a schematic diagram of the structure of the first gear assembly; Figure 6 This is a schematic diagram of the gear set. Figure 7 for Figure 4 Enlarged diagram of point A in the middle.

[0017] Reference numerals: 1. Valve chamber main housing; 2. Valve cover; 3. Bolts; 4. Lower base plate; 5. First gear assembly; 51. Column; 52. First gear; 53. Anti-detachment block; 54. Nut groove; 6. Second gear assembly; 61. Gear set; 611. Gear shaft; 612. Second gear; 613. Third gear; 62. Transmission chain; 7. Drive motor; 8. Upper base plate; 9. Following lifting mechanism; 91. Fixed bushing; 92. Threaded adjusting shaft; 93. Fourth gear; 94. Fifth gear; 10. Bolt picking mechanism; 101. Bolt box; 102. Support column; 103. Material discharge port; 104. Material picking nozzle; 1041. Rubber constriction; 105. Dispersion shaft; 1051. Dispersion blade; 106. Sixth gear. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example 1

[0022] like Figure 1-7 As shown, the present invention proposes a multi-bolt fixture for simultaneously mounting a valve cover on an automotive engine, including a lower base plate 4 for positioning each bolt 3. The shape of the lower base plate 4 is the same as that of the valve cover 2 to be installed, and through holes are opened on the lower base plate 4 at positions vertically corresponding to the bolt holes on the valve cover 2. The first gear assembly 5 is installed in the through holes, and the bolt 3 can be aligned with the bolt holes on the valve cover 2 when placed in each of the first gear assemblies 5.

[0023] In this embodiment, a first gear assembly 5 is mounted on the lower base plate 4 and installed in each through hole of the valve cover 2. The first gear assembly 5 includes a column 51, an anti-detachment block 53 is fixedly connected to the bottom end of the column 51, and a first gear 52 is fixedly connected to the top end of the column 51. Both the first gear 52 and the column 51 are provided with nut grooves 54 that match the shape of bolt 3 nuts. The bolt 3 passes vertically through the nut groove 54 and the nut is placed in the nut groove 54.

[0024] In this embodiment, a second gear assembly 6 and a drive motor 7 are mounted on an upper base plate 8. The second gear assembly 6 includes a plurality of gear sets 61 and a transmission chain 62 that drives each gear set 61. Each gear set 61 includes a gear shaft 611 that is rotatably connected to the upper base plate 8. The top end of a single gear shaft 611 is fixedly connected to the output shaft of the drive motor 7. A second gear 612 that can mesh with a first gear 52 is fixedly connected to the bottom end of the gear shaft 611. A plurality of third gears 613 are fixedly sleeved in the middle of the gear shaft 611. Adjacent third gears 613 are driven and connected by the transmission chain 62. In this embodiment, a following lifting mechanism 9 is included. The following lifting mechanism 9 achieves automatic lifting through a transmission connection with a single first gear assembly 5 to accommodate the tightening action (rotation and lifting action) of the bolt 3. The following lifting mechanism 9 includes a fourth gear 93 coaxially fixedly connected to the single first gear assembly 5 and a fixed bushing 91 fixed to the edge surface of the lower base plate 4. A fifth gear 94 is rotatably connected to the upper part of the fixed bushing 91. The fifth gear 94 is transmissionally connected to the fourth gear 93 through a chain belt, and the inner ring surface of the fifth gear 94 is screwed to the top end of the threaded adjusting shaft 92. The threaded adjusting shaft 92 and the fixed bushing 91 are vertically slidably engaged, and a T-shaped bushing seat is screwed onto the bottom end of the fixed bushing 91. The vertical height of the entire device can be adjusted by the threaded engagement between the T-shaped bushing seat and the fixed bushing 91 so that the bottom end of the bolt 3 can align with the bolt hole of the valve cover 2. In other embodiments, existing lifting devices such as cylinders can be used instead of the above-mentioned threaded connection to provide a more efficient lifting function.

[0025] The working principle of this embodiment is as follows: through the transmission rotation between the first gear assembly 5 and the second gear assembly 6 and the vertical lifting achieved by the following lifting mechanism 9, all bolts 3 can rotate and lift synchronously, so as to be installed on the valve cover 2 and the valve main housing 1 at the same time, which greatly improves the bolting efficiency.

[0026] Specifically, place the valve chamber main housing 1 and valve chamber cover 2, which are to be bolted, below the lower base plate 4 of this device. Rotate the T-shaped bushing that is screwed to the bottom end of the threaded adjustment shaft 92, or adjust the height of the entire device using a lifting device such as a cylinder, so that the bolt 3 passes vertically through the nut groove 54 and its bottom end can align with the bolt hole on the valve chamber cover 2. Insert the bolts to be installed sequentially into each of the first gear assemblies 5, referring to... Figure 4 As shown, at this time, the nut of bolt 3 is stuck in the nut groove 54 at the center of the first gear assembly 5. Then, the upper base plate 8, along with the second gear assembly 6 and drive motor 7 mounted thereon, are then... Figure 1 As shown, they are placed together on the lower base plate 4. The output shaft of the drive motor 7 drives the second gear assembly 6 to rotate. The second gear assembly 6, through the meshing between the second gear 612 and the first gear 52, drives all the first gear assemblies 5 to rotate together, thereby driving all the bolts 3 to rotate together. At the same time, as shown... Figure 7 As shown, the first gear assembly 5 drives the fifth gear 94 to rotate through the transmission connection between the first gear assembly 5 and the fifth gear 94. The fifth gear 94 drives the entire lower base plate 4 to move downward through the threaded engagement between the threaded adjustment shaft 92 and the vertical sliding engagement between the threaded adjustment shaft 92 and the fixed bushing 91. This allows the bolt 3 to have both rotational and downward movement, thus enabling it to be screwed into the bolt holes of the valve chamber main housing 1 and the valve chamber cover 2 for installation.

[0027] Example 2

[0028] The present invention proposes a multi-bolt fixture for simultaneously mounting automotive engine valve cover, comprising a lower base plate 4 for positioning each bolt 3. The shape of the lower base plate 4 is the same as that of the valve cover 2 to be installed, and through holes are formed on the lower base plate 4 at vertically corresponding positions to the bolt holes on the valve cover 2. The first gear assembly 5 is installed in the through holes, and the bolt 3 can be aligned with the bolt holes on the valve cover 2 when placed in each of the first gear assemblies 5. The first gear assembly 5 is mounted on the lower base plate 4 and installed in each of the through holes of the valve cover 2. The first gear assembly 5 includes a column 51, with an anti-loosening block 53 fixedly connected to the bottom end of the column 51 and a first gear 52 fixedly connected to the top end of the column 51. Both the first gear 52 and the column 51 have nut grooves 54 that match the shape of the bolt 3 nuts. The bolt 3 passes vertically through the nut groove 54 and the nut is placed in the nut groove 54. The gear set 61 includes a gear shaft 611 rotatably connected to the upper base plate 8, wherein the top end of a single gear shaft 611 is fixedly connected to the output shaft of the drive motor 7, the bottom end of the gear shaft 611 is fixedly connected to a second gear 612 capable of meshing with the first gear 52, and a plurality of third gears 613 are fixedly sleeved in the middle of the gear shaft 611, and adjacent third gears 613 are connected by a transmission chain 62; it includes an upper base plate 8 for mounting the second gear assembly 6 and a drive motor 7 mounted on the upper base plate 8 for driving the second gear assembly 6; it includes a following lifting mechanism 9, which achieves automatic lifting through a transmission connection with a single first gear assembly 5 to accommodate the tightening action (rotational action and lifting action) of the bolt 3. The accompanying lifting mechanism 9 includes a fourth gear 93 coaxially fixedly connected to a single first gear assembly 5 and a fixed bushing 91 fixed to the edge surface of the lower base plate 4. A fifth gear 94 is rotatably connected to the upper part of the fixed bushing 91. The fifth gear 94 is connected to the fourth gear 93 via a chain belt, and the inner ring surface of the fifth gear 94 is screwed to the top end of the threaded adjusting shaft 92. The threaded adjusting shaft 92 and the fixed bushing 91 are vertically slidably engaged, and a T-shaped bushing seat is screwed onto the bottom end of the fixed bushing 91. The vertical height of the entire device can be adjusted by the threaded engagement between the T-shaped bushing seat and the fixed bushing 91, so that the bottom end of the bolt 3 can mate with the bolt hole of the valve cover 2. In other embodiments, existing lifting devices such as cylinders can be used instead of the above-mentioned threaded connection to provide a more efficient lifting function.

[0029] like Figure 1-3As shown, compared to Embodiment 1, this embodiment further includes a bolt-retrieving mechanism 10. The bolt-retrieving mechanism 10 includes a bolt box 101 for storing bolts 3. The bottom of the bolt box 101 has several discharge ports 103, and a feeding nozzle 104 is fixedly connected to the lower surface of the bottom of the bolt box 101 at each discharge port 103. The bottom end of the feeding nozzle 104 is fixedly connected to a rubber constriction 1041 to prevent the bolts 3 from falling off directly. The bolt-retrieving mechanism 10 also includes a dispersing shaft 105 and a sixth gear 106. The sixth gear 106 is rotatably connected to the upper surface of the lower base plate 4 and meshes with the first gear assembly 5 in an adjacent position. The top end of the dispersing shaft 105 movably passes through the bolt box 101 and is fixedly connected to a dispersing blade 1051. The bolt-retrieving mechanism 10 also includes a support column 102 with one end fixedly connected to the bolt box 101 and the other end movably sleeved with a T-shaped bushing.

[0030] The working principle of this embodiment is as follows: Through the design of the bolt picking mechanism 10, bolts 3 to be tightened can be stored and several bolts 3 can be ejected in a timely manner, making it convenient for operators to pick them up individually and avoiding the problem of operators being easily pricked by the tangled bolts when picking up bolts in the box. Through the design of structures such as the dispersion shaft 105 and the sixth gear 106, the bolts in the bolt box 101 can be stirred and dispersed in conjunction with the bolt loading action in Embodiment 1, making it convenient for the bolts 3 to be ejected from the picking nozzle 104.

[0031] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multi-bolt fixture for simultaneously installing valve cover on an automobile engine, characterized in that, include: The lower base plate (4) is used to position each bolt (3). The first gear assembly (5) is mounted on the lower base plate (4) and corresponds one-to-one with the bolts (3); The second gear assembly (6) is provided with a plurality of mutually driving gear sets (61), and each gear set (61) meshes and drives with the corresponding first gear assembly (5). The accompanying lifting mechanism (9) achieves automatic lifting through a transmission connection with a single first gear assembly (5) to accommodate the tightening action of the bolt (3); The system includes an upper base plate (8) for mounting the second gear assembly (6) and a drive motor (7) mounted on the upper base plate (8) for driving the second gear assembly (6); the first gear assembly (5) includes a column (51), the top of which is fixedly connected to a first gear (52), and both the first gear (52) and the column (51) are provided with nut grooves (54) in the shape of matching bolts (3); the gear set (61) includes a gear shaft (611) rotatably connected to the upper base plate (8), and the top of a single gear shaft (611) is fixedly connected to the output shaft of the drive motor (7), the bottom of the gear shaft (611) is fixedly connected to a second gear (612) that can mesh with the first gear (52), and a plurality of third gears (613) are fixedly sleeved in the middle of the gear shaft (611), and adjacent third gears (613) are connected by a transmission chain (62). The accompanying lifting mechanism (9) includes a fourth gear (93) fixedly connected to a single first gear assembly (5) and a fixed bushing (91) fixed to the edge surface of the lower base plate (4). The upper part of the fixed bushing (91) is rotatably connected to a fifth gear (94). The fifth gear (94) is connected to the fourth gear (93) via a chain belt. The inner ring surface of the fifth gear (94) is spirally connected to the top end of the threaded adjusting shaft (92). The threaded adjusting shaft (92) and the fixed bushing (91) are vertically slidably engaged. The bottom end of the fixed bushing (91) is spirally sleeved with a T-shaped bushing seat.

2. The multi-bolt fixture for simultaneously installing valve cover on an automotive engine as described in claim 1, characterized in that, It includes a bolt-retrieving mechanism (10), which includes a bolt box (101) for storing bolts (3).

3. The multi-bolt fixture for simultaneously installing valve cover of an automobile engine according to claim 2, characterized in that, The bottom of the bolt box (101) has several material outlets (103), and the bottom lower surface of the bolt box (101) is provided with a material picker (104) at each material outlet (103).

4. The multi-bolt fixture for simultaneously installing valve cover of an automobile engine according to claim 3, characterized in that, The bottom end of the feeding nozzle (104) is provided with a rubber constriction (1041) to prevent the bolt (3) from falling off directly.

5. The multi-bolt fixture for simultaneously installing valve cover of an automobile engine according to claim 4, characterized in that, The bolt taking mechanism (10) also includes a dispersing shaft (105) and a sixth gear (106). The sixth gear (106) is rotatably connected to the upper surface of the lower base plate (4) and meshes with the first gear assembly (5) in the adjacent position. The top end of the dispersing shaft (105) is movably connected through the bolt box (101) and then fixedly connected with a dispersing blade (1051).

6. The multi-bolt fixture for simultaneously installing valve cover of an automobile engine according to claim 5, characterized in that, The bolt taking mechanism (10) also includes a support column (102) with one end fixedly connected to the bolt box (101) and the other end movably sleeved with a T-shaped bushing.

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