CN214109489U - Automatic tightening mechanism with axial telescopic function - Google Patents

Abstract

The utility model provides an automatic mechanism of screwing up of axial telescopic, include: the device comprises a bottom plate assembly, a stand column, a cylinder assembly, an axial telescopic mechanism, a sliding table assembly and a tightening gun assembly, wherein the cylinder assembly is installed above the bottom plate assembly through the stand column, the axial telescopic mechanism is arranged on one side of the cylinder assembly and is connected with the sliding table assembly, and the tightening gun assembly is arranged on the sliding table assembly. The utility model adds a sliding table component pushed by a cylinder, thereby realizing the automatic propulsion of the tightening gun component, and transforming the station into full automation through extremely low cost; on this basis, can also guarantee to screw up the in-process and screw up the rifle and have stable packing force to the bolt, improve the uniformity of screwing up the process, effectively improved engine assembly efficiency, and whole mechanism is small, and is with low costs.

Description

Automatic tightening mechanism with axial telescopic function

Technical Field

The utility model relates to an automatic screw up the mechanism, especially relate to an axial telescopic screws up mechanism automatically.

Background

At present, the bolt of the crankshaft pulley in the engine assembling process is screwed up manually, a screwing gun is installed on a sliding table through a support, and workers manually push the sliding table forwards until a sleeve is sleeved in the bolt of the crankshaft pulley and then screw up the bolt. Although automatic tightening is also applied in addition to manual tightening in the industry, most of the manual tightening machines are combinations of a tightening shaft and a servo motor matched lead screw or a multi-shaft robot, and the equipment cost is generally high. Therefore, the automatic tightening mechanism for engine assembly in the prior art mainly has the following problems: first, have the quality risk, during manual screwing up, hold by hand and screw up the rifle and screw up the bolt, screw up the process because staff's application of force state is unstable, rifle and bolt axiality can't be guaranteed, and the uniformity is relatively poor, has the risk of torsion overproof. Second, staff operating time low-usage screws up the rifle and feeds the action and rely on staff manual operation and bent axle belt pulley bolt tightening process and be close 4 seconds, and staff latency is long to exist extravagantly, and staff operating time's low-usage, production efficiency is not high enough. Thirdly, if automated modification is performed by using a servo motor or a robot, the structure is complex and the cost is high.

Disclosure of Invention

The utility model aims to solve the technical problem that a need provide one kind can improve engine assembly efficiency, can promote product uniformity and quality to the automatic mechanism of screwing up of axial telescopic small, with low costs.

To this end, the utility model provides an axial telescopic screws up mechanism automatically, include: the device comprises a bottom plate assembly, a stand column, a cylinder assembly, an axial telescopic mechanism, a sliding table assembly and a tightening gun assembly, wherein the cylinder assembly is installed above the bottom plate assembly through the stand column, the axial telescopic mechanism is arranged on one side of the cylinder assembly and is connected with the sliding table assembly, and the tightening gun assembly is arranged on the sliding table assembly.

The utility model is further improved in that the cylinder assembly also comprises a cylinder mounting plate, and the cylinder is mounted on the upright post through the cylinder mounting plate; the axial telescopic mechanism is arranged on one side of the cylinder.

The utility model discloses a further improvement lies in, the below of cylinder mounting panel is provided with the strengthening rib, the strengthening rib fixed set up in by the stand.

The utility model discloses a further improvement lies in, axial telescopic machanism includes guide arm, elastic component and slip table coupling assembling, elastic component set up in the guide arm, slip table coupling assembling set up in between guide arm and the elastic component.

The utility model discloses a further improvement lies in, elastic component includes coil spring and spring locating part, the coil spring cover is located on the guide arm, the spring locating part set up in the guide arm is kept away from the one end of cylinder component. The spring stop is preferably a spring collar.

The utility model discloses a further improvement lies in, slip table coupling assembling includes slip table connecting block and linear bearing, the slip table connecting block passes through linear bearing with the guide arm is connected.

The utility model discloses a further improvement lies in, the bottom plate subassembly includes mounting plate, altitude mixture control spare and backup pad, mounting plate passes through altitude mixture control spare is connected to the backup pad, the stand set up in the backup pad.

The utility model discloses a further improvement lies in, the slip table subassembly includes slip table, linear slide rail and buffering protection subassembly, the slip table pass through linear slide rail set up in the top of cylinder subassembly, buffering protection subassembly set up in one side of slip table.

The utility model discloses a further improvement lies in, buffering protection subassembly includes stop screw, hits piece and buffer, hit the piece set up in the buffer is close to one side of stop screw.

The utility model discloses a further improvement lies in, it includes screws up rifle mount pad, sleeve and screws up the rifle to screw up the rifle subassembly, screw up the rifle vertical set up in on the sleeve, and pass through screw up the rifle mount pad install in on the slip table subassembly.

Compared with the prior art, the beneficial effects of the utility model reside in that: the support and the positioning are realized through a bottom plate assembly, a cylinder assembly, an axial telescopic mechanism and the like, and a sliding table assembly pushed by a cylinder is added, so that the automatic propulsion of a tightening gun assembly is realized, and the station is transformed into full automation through extremely low cost; and, set up one set of axial telescopic machanism between cylinder assembly and the slip table subassembly, when guaranteeing to screw up the rifle and can realize recognizing the cap, also can guarantee to screw up the in-process and screw up the rifle and have stable packing force to the bolt, improve the uniformity of screwing up the process, on the basis that improves engine assembly efficiency, promote the reliable and stable nature of its uniformity and quality, the utility model discloses structure after the improvement mainly occupies vertical space, and whole mechanism is small, and is with low costs.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure according to an embodiment of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, this example provides an axially retractable automatic tightening mechanism including: the device comprises a bottom plate assembly, a stand column 3, a cylinder assembly, an axial telescopic mechanism, a sliding table assembly and a tightening gun assembly, wherein the cylinder assembly is installed above the bottom plate assembly through the stand column 3, the axial telescopic mechanism is arranged on one side of the cylinder assembly and is connected with the sliding table assembly, and the tightening gun assembly is arranged on the sliding table assembly. In actual work, the air cylinder 13 of the air cylinder assembly is in an extending state in a non-tightening state; after the engine gets into the station and falls to the position, cylinder 13 begins to retract, axial telescopic machanism passes through elasticity compression drive the slip table subassembly removes, works as when tightening rifle subassembly contact crankshaft pulley bolt's head, cylinder 13 still continues to retract, axial telescopic machanism can further compress the energy storage, screws up until accomplishing.

As shown in fig. 1, the cylinder assembly of this example further includes a cylinder mounting plate 12, and the cylinder 13 is mounted on the upright 3 through the cylinder mounting plate 12; the axial telescopic mechanism is arranged on one side of the cylinder 13. The axial telescopic mechanism comprises a guide rod 16, an elastic assembly and a sliding table connecting assembly, the elastic assembly is arranged in the guide rod 16, and the sliding table connecting assembly is arranged between the guide rod 16 and the elastic assembly, so that elastic pressure can be kept in the screwing process to compress bolts conveniently, and consistency and stability are ensured; the elastic component comprises a spiral spring 17 and a spring limiting piece 18, the spiral spring 17 is sleeved on the guide rod 16, and the spring limiting piece 18 is arranged at one end, far away from the cylinder component, of the guide rod 16; the spring retainer 18 is preferably a spring collar for achieving the retaining and fixing function of the coil spring 17.

As shown in fig. 1, a reinforcing rib 15 is arranged below the cylinder mounting plate 12 in this embodiment, and the reinforcing rib 15 is fixedly arranged beside the upright post 3, so that stable installation of a cylinder assembly, an axial telescopic mechanism, a sliding table assembly and a tightening gun assembly is facilitated, and a good foundation is provided for subsequent work; the bottom plate assembly comprises an installation bottom plate 1, a height adjusting piece 2 and a supporting plate 14, the installation bottom plate 1 is connected to the supporting plate 14 through the height adjusting piece 2, the upright column 3 is arranged on the supporting plate 14, the height adjusting piece 2 is preferably a screw rod or a screw rod, and height adjustment can be conveniently carried out according to actual requirements.

As shown in fig. 1, the tightening gun assembly of this embodiment includes a tightening gun mounting seat 6, a sleeve 7 and a tightening gun 8, wherein the tightening gun 8 is vertically disposed on the sleeve 7 and is mounted on the sliding table assembly through the tightening gun mounting seat 6.

In the embodiment, the air cylinder 13 is arranged on the upright post 3 through an air cylinder mounting plate 12, and the air cylinder 13 is in an extending state when in a non-tightening state; when the engine enters a station and is located, the air cylinder 13 starts to retract, the spring limiting part 18 at the tail end of the guide rod 16 drives the sliding table 4 to move by compressing the spiral spring 17, when the sleeve 7 on the tightening gun 8 starts to contact the head of the crankshaft pulley bolt, the tightening gun 8 rotates to be capped, the air cylinder 13 still continues to retract at the moment, and the spiral spring 17 further compresses stored energy until the sleeve 7 sleeves the bolt and finishes the forward process of tightening, and the driving force is provided by the rebound stroke of the spiral spring 17. Based on the principle, the pressure of the tightening shaft on the bolt in the tightening process can be ensured to have better stability, so that the tightening quality is improved.

As shown in fig. 2, the sliding table connecting assembly of this example includes a sliding table connecting block 19 and a linear bearing 20, and the sliding table connecting block 19 is connected to the guide rod 16 through the linear bearing 20, so as to transmit the driving force of the rebound stroke of the coil spring 17;

as shown in fig. 1, the sliding table assembly of this embodiment includes a sliding table 4, a linear slide rail 5 and a buffer protection assembly, the sliding table 4 is disposed above the cylinder assembly through the linear slide rail 5, and the buffer protection assembly is disposed on one side of the sliding table 4; buffering protection subassembly includes stop screw 9, hits piece 10 and buffer 11, hit piece 10 set up in buffer 11 is close to one side of stop screw 9 is convenient for realize spacing and buffering crashproof function in the motion of slip table 4, further guarantees the reliability of automatic tightening process.

In conclusion, the automatic screwing gun assembly is supported and positioned through the bottom plate assembly, the air cylinder assembly, the axial telescopic mechanism and the like, meanwhile, the sliding table assembly pushed by the air cylinder 13 is additionally arranged, so that the automatic pushing of the screwing gun assembly is realized, and the station is transformed into full automation through extremely low cost; and, set up a set of axial telescopic machanism between cylinder assembly and slip table subassembly, when guaranteeing to screw up rifle 8 and realize recognizing the cap, also can guarantee to screw up rifle 8 and have stable packing force to the bolt in the process of screwing up, improve the uniformity of screwing up the process, on the basis of improving engine assembly efficiency, can promote its uniformity and the stable reliability of quality, the structure after this example improvement mainly occupies vertical space, whole mechanism is small, with low costs.

The automatic assembling device can be directly transformed based on the existing engine assembling mechanism, and the full automation of the equipment can be realized only through simple pneumatic elements; in addition, the tightening shaft of the tightening gun assembly does not need to move along the roller way direction, so that the whole tightening mechanism only mainly occupies a vertical space, and the whole mechanism occupies extremely small space in the longitudinal direction and the transverse direction; the automatic tightening mechanism has the advantages that automation is realized, the repeatability and the stability of tightening actions are good, and the problems of torque force out-of-tolerance and the like caused by human factors are effectively solved.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.

Claims (10)

1. An automatic tightening mechanism of axial telescopic, characterized by, includes: the device comprises a bottom plate assembly, a stand column, a cylinder assembly, an axial telescopic mechanism, a sliding table assembly and a tightening gun assembly, wherein the cylinder assembly is installed above the bottom plate assembly through the stand column, the axial telescopic mechanism is arranged on one side of the cylinder assembly and is connected with the sliding table assembly, and the tightening gun assembly is arranged on the sliding table assembly.

2. The axially retractable automatic tightening mechanism according to claim 1, wherein the cylinder assembly further comprises a cylinder mounting plate by which the cylinder is mounted to the upright; the axial telescopic mechanism is arranged on one side of the cylinder.

3. The automatic axially retractable tightening mechanism according to claim 2, wherein a reinforcing rib is disposed below the cylinder mounting plate, and the reinforcing rib is fixedly disposed beside the upright post.

4. The automatic axially retractable tightening mechanism according to claim 2, wherein the axial retracting mechanism includes a guide rod, an elastic assembly, and a slip connection assembly, the elastic assembly being disposed in the guide rod, the slip connection assembly being disposed between the guide rod and the elastic assembly.

5. The axially retractable automatic tightening mechanism according to claim 4, wherein the resilient member includes a coil spring and a spring stop, the coil spring being disposed around the guide rod, the spring stop being disposed at an end of the guide rod remote from the cylinder member.

6. The automatic tightening mechanism of axial telescopic according to claim 4, characterized in that slip table coupling assembling includes a slip table connecting block and a linear bearing, the slip table connecting block being connected with the guide rod through the linear bearing.

7. The axially retractable automatic tightening mechanism according to any one of claims 1 to 6, wherein the base plate assembly includes a mounting base plate, a height adjustment member, and a support plate, the mounting base plate being connected to the support plate by the height adjustment member, the upright being disposed on the support plate.

8. The automatic tightening mechanism that axially stretches and retracts according to any one of claims 1 to 6, characterized in that the sliding table assembly includes a sliding table, a linear slide rail, and a buffer protection assembly, the sliding table is disposed above the cylinder assembly through the linear slide rail, and the buffer protection assembly is disposed on one side of the sliding table.

9. The axially retractable automatic tightening mechanism according to claim 8, wherein the bumper guard assembly includes a limit screw, a striker and a bumper, the striker being disposed on a side of the bumper adjacent to the limit screw.

10. The automatic tightening mechanism of any one of claims 1 to 6, wherein the tightening gun assembly comprises a tightening gun mount, a sleeve, and a tightening gun, the tightening gun being vertically disposed on the sleeve and mounted on the slide assembly via the tightening gun mount.

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