CN211759672U

CN211759672U - Pneumatic self-locking nut assembling machine

Info

Publication number: CN211759672U
Application number: CN201922485519.4U
Authority: CN
Inventors: 张继东
Original assignee: Zhejiang Yicheng Technology Co ltd
Current assignee: Zhejiang Yicheng Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-27
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a pneumatic type self-locking nut kludge, include: an operation table; the fixed seat is arranged on the operating platform and is provided with a nut body and a sliding chute of the self-locking sleeve, wherein the nut body is used for placing the self-locking nut, the sliding chute extends forwards and backwards; the cylinder is arranged on the operating platform, the acting end of the cylinder can move back and forth along the sliding groove, and in the backward moving process, the cylinder abuts against the front side of one part of the nut body and the self-locking sleeve and drives the part to move back along the sliding groove so as to be assembled with the other part correspondingly abutting against the abutting part. The self-locking nut assembling machine is simple in structure and convenient to operate, an operator only needs to put the corresponding nut body and the self-locking sleeve into the sliding groove of the fixing base, the air cylinder is started, the assembling operation of the self-locking nut can be completed, the self-locking nut assembling machine is very convenient and fast, and the production efficiency is effectively improved.

Description

Pneumatic self-locking nut assembling machine

Technical Field

The utility model relates to a self-locking nut technical field especially relates to a pneumatic type self-locking nut kludge.

Background

The self-locking nut (also called as a locknut or an eccentric nut) can effectively prevent the loosening problem caused by vibration and other reasons. For example, the Chinese utility model patent "eccentric self-locking locknut" with the publication number of CN203532477U and the Chinese utility model patent "eccentric self-locking locknut" with the publication number of CN203809476U disclose a locknut, which comprises a nut body with a main threaded hole, a self-locking sleeve with a self-locking threaded hole, an upper end surface of the nut body is provided with an eccentric boss extending upwards, a central axis of the eccentric boss has an eccentric distance with the central axis of the main threaded hole, a lower end surface of the self-locking sleeve is provided with an eccentric stop hole sleeved on the eccentric boss, the central axis of the eccentric stop hole coincides with the central axis of the eccentric boss, a friction force is provided between the inner peripheral wall of the eccentric stop hole and the outer peripheral wall of the eccentric boss, the central axis of the self-locking threaded hole coincides with the central axis of the main threaded hole in the initial state of the self-locking sleeve arranged on the eccentric boss, and a gap is provided between the, under the state that the self-locking sleeve deflects an angle relative to the eccentric boss, the central axis of the self-locking threaded hole deviates from the central axis of the main threaded hole, and the self-locking sleeve and the nut cylinder are firmly locked due to the deviation, so that the anti-loosening effect is enhanced.

After the eccentric boss of the nut body and the eccentric stop hole of the self-locking sleeve are processed, the eccentric boss and the eccentric stop hole are generally required to be assembled together, so that the self-locking nut can be conveniently packaged and transported subsequently, or a user can conveniently assemble the self-locking nut onto a corresponding screw rod for fastening during subsequent use. The assembly process of two parts of the existing self-locking nut is that an operator firstly aligns an eccentric boss of a nut main body with an eccentric stop hole of a self-locking sleeve, then the nut main body and the self-locking sleeve are placed on a platform, and the nut main body and the self-locking sleeve are assembled after being knocked by a hammer head or other objects. The assembly mode has high labor intensity and low assembly efficiency, and leads to high production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a pneumatic type auto-lock nut kludge that assembly efficiency is high.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: pneumatic type auto-lock nut kludge includes:

an operation table;

the fixed seat is arranged on the operating platform and is provided with a nut body and a sliding chute of the self-locking sleeve, wherein the nut body is used for placing the self-locking nut, the sliding chute extends forwards and backwards;

the cylinder is arranged on the operating platform, the acting end of the cylinder can move back and forth along the sliding groove, and in the backward moving process, the cylinder abuts against the front side of one part of the nut body and the self-locking sleeve and drives the part to move back along the sliding groove so as to be assembled with the other part correspondingly abutting against the abutting part.

In order to enable the output shaft of the air cylinder to stably move back and forth, the air cylinder further comprises a positioning block arranged at the front part of the fixing seat, a guide hole penetrating through the positioning block from front to back is formed in the positioning block, and the output shaft of the air cylinder is movably arranged in the guide hole in a penetrating mode from front to back.

In order to adapt to self-locking nut workpieces with different specifications, the self-locking nut further comprises a pressing block which is detachably connected to the end part of the output shaft of the air cylinder, and the pressing block is matched with the end part of the self-locking nut in size. When the self-locking nuts with different specifications are required to be assembled, the pressing blocks matched with the self-locking nuts can be directly replaced.

In order to facilitate the control of the air cylinder by an operator to act, the air cylinder further comprises a foot switch for controlling the action of the air cylinder. Of course, it is contemplated that the control switch is not limited to a foot switch, and a corresponding manual button may be provided on the console to control the air cylinder.

In order to make the moving process of the two parts of the self-locking nut in the sliding groove more stable and avoid the situation of shaking and even side turning under the action of the output shaft of the cylinder, the sliding groove is a V-shaped groove.

As an improvement, an included angle alpha formed by two opposite side walls of the V-shaped groove is 60 degrees, and the two opposite side walls of the V-shaped groove are correspondingly supported on two corresponding side edges of the nut body and the self-locking sleeve, so that a chip groove is formed in the bottom space of the V-shaped groove. The included angle of the V-shaped groove is set to be 60 degrees, namely, the included angle is consistent with the included angle of the side edges of the self-locking nut which are arranged at intervals, so that the nut body of the self-locking nut and the self-locking sleeve can be enabled to face towards the right upper side, a user can conveniently identify the placing state of the nut body and the self-locking sleeve, the nut body and the self-locking sleeve are aligned correctly, and errors are avoided.

When two parts of the self-locking nut are placed in the V-shaped groove, the side edges of the self-locking nut (the nut body and the self-locking sleeve) which are arranged at intervals are contacted with the upper parts of the two side walls of the V-shaped groove, so that corresponding fragments can automatically fall into a chip groove below the self-locking nut, and the fragments on the upper parts of the two side walls of the V-shaped groove are fewer, so that the front and back movement of the self-locking nut is more stable, the surface scratch of a self-locking nut product is reduced, and the quality of the product.

In order to facilitate the blowing and discharging of the chips retained in the chip grooves, the V-shaped grooves are through grooves which are communicated from front to back.

Compared with the prior art, the utility model has the advantages that: when the nut body of the self-locking nut and the self-locking sleeve are assembled, the two parts can be directly and correspondingly placed in the sliding groove of the fixing seat in sequence, then the cylinder is started to act, the output shaft of the cylinder moves backwards, and the output shaft can be tightly pressed on the abutting part arranged at the rear part of the fixing seat, so that the two parts are embedded and matched together, and the assembly is completed. The self-locking nut assembling machine is simple in structure and convenient to operate, an operator only needs to put the corresponding nut body and the self-locking sleeve into the sliding groove of the fixing base, the self-locking nut can be assembled by starting the air cylinder to act, the self-locking nut assembling machine is very convenient and fast, and the production efficiency is effectively improved.

Drawings

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

fig. 2 is a top view of an embodiment of the present invention (the self-locking nut is in an unassembled state before the cylinder is actuated);

fig. 3 is a top view of the embodiment of the present invention (the self-locking nut is in a state of being assembled after the cylinder is actuated);

FIG. 4 is a cross-sectional view taken at A-A of FIG. 2;

fig. 5 is a schematic perspective view of another angle according to the embodiment of the present invention (the output shaft of the cylinder is in a backward extending state).

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Referring to fig. 1 to 5, the pneumatic type self-locking nut assembling machine includes an operation table 10, a fixing base 20, a cylinder 30, a positioning block 50, and a foot switch 60.

Referring to fig. 1, the fixing base 20 is provided on the operating board 10. The top surface of the fixed seat 20 is provided with a sliding groove 21 extending forwards and backwards. The nut body 41 and the self-locking sleeve 42 of the self-locking nut 40 can be relatively placed in the slide slot 21 and can slide backwards along the slide slot 21 under the driving of the air cylinder 30.

Referring to fig. 4, the sliding slot 21 in this embodiment is a V-shaped slot, and the included angle α of the V-shaped slot is 60 degrees and is consistent with the included angle of the spaced side edges of the self-locking nut 40 (i.e. the nut body 41 and the self-locking sleeve 42). When the self-locking nut 40 is placed in the V-shaped groove, two opposite side walls of the V-shaped groove are correspondingly supported on two side edges of the nut body 41 and the self-locking sleeve 42 which are arranged at intervals, so that the moving process of the two parts in the sliding groove 21 is more stable, and the situation of shaking and even side turning under the action of the cylinder 30 is avoided.

Referring to fig. 5, a positioning block 50 is disposed at the front of the fixing base 20, and the positioning block 50 in this embodiment is a transversely disposed strip-shaped block. The positioning block 50 is provided with a guide hole 51 opened in the front and rear direction at a position corresponding to the slide groove 21 in the vertical direction, that is, the guide hole 51 is positioned right above the slide groove 21 and is aligned in the axial direction with the extending direction of the slide groove 21.

With continued reference to fig. 5, the air cylinder 30 is disposed on the console 10 and is located at the front of the fixing base 20. The output shaft 31 of the cylinder 30 is inserted into the guide hole 51, wherein the end of the output shaft 31 is provided with a pressing block 32. The pressing block 32 is detachably connected to the end of the output shaft 31, and specifically, the pressing block 32 is adapted to the end dimensions of the nut body 41 and the self-locking sleeve 42. Namely, when assembling the self-locking nuts 40 with different specifications, the pressing block 32 with the corresponding size is directly replaced.

When the two parts of the self-locking nut 40 are placed in the V-shaped groove, the sides of the two parts of the self-locking nut 40 which are arranged at intervals are in contact with the upper parts of the two side walls of the V-shaped groove, and the bottom space of the V-shaped groove forms a chip groove 210 for containing chips. When placing self-locking nut 40 in spout 21, corresponding piece just can fall into the chip groove 210 of below automatically, and two lateral wall upper portion pieces in V type groove persist less like this, and the contact position is difficult to the centre gripping has the piece between the lateral wall in V type groove and self-locking nut 40's the side promptly to make self-locking nut 40's back-and-forth movement more steady, reduced self-locking nut 40 product surface fish tail, guaranteed the quality of product.

The chute 21 is a through groove which is through from front to back, so that when debris in the chute 21 accumulates to a certain degree, the debris can be directly blown or wiped clean, and the debris is discharged from notches at two ends of the through groove.

Referring to fig. 1 and 5, in order to limit the rear side of the nut body 41 and the self-locking sleeve 42 of the self-locking nut 40, so that the two components (the nut body 41 and the self-locking sleeve 42) of the self-locking nut 40 can be embedded into each other under the action of the output shaft 31 of the cylinder 30 to complete the assembly operation, the rear portion of the top surface of the fixing base 20 is provided with a stop piece 22, the stop piece 22 is a transversely arranged elongated stop block and is correspondingly located at the rear side position of the sliding slot 21, and when the nut body 41 or the self-locking sleeve 42 of the self-locking nut 40 moves backwards to the corresponding position, the stop piece 22 can be stopped.

Referring to FIG. 1, foot pedal 60 is disposed below console 10 and is in signal communication with a corresponding control system. After the operator places the two parts of the self-locking nut 40 in the V-shaped groove, the air cylinder 30 can be conveniently driven to operate by the foot-operated foot switch 60.

The use of the pneumatic self-locking nut assembling machine of this embodiment:

firstly, the nut body 41 and the self-locking sleeve 42 of the self-locking nut 40 are correspondingly placed in the sliding groove 21 of the fixed seat 20 in sequence, then the pedal switch 60 is driven by feet to control the action of the air cylinder 30, the output shaft 31 of the air cylinder 30 moves backwards to act on one part of the nut body 41 and the self-locking sleeve 42, and the rear side of the other part is abutted against the abutting piece 22 of the fixed seat 20, so that the two parts of the self-locking nut 40 can be embedded and matched together to finish the assembling process. The pneumatic self-locking nut assembling machine is simple in structure and convenient to operate, an operator only needs to place the corresponding nut body 41 and the self-locking sleeve 42 into the sliding groove 21 of the fixing seat 20, the assembling process of the self-locking nut 40 can be completed by stepping on the foot switch 60, the pneumatic self-locking nut assembling machine is very convenient and fast, and the production efficiency is effectively improved.

Claims

1. The utility model provides a pneumatic type auto-lock nut kludge which characterized in that includes:

an operation table (10);

the fixing seat (20) is arranged on the operating platform (10), is provided with a nut body (41) which is arranged in a front-back extending mode and used for placing the self-locking nut (40) and a sliding groove (21) of the self-locking sleeve (42), and is provided with a stop piece (22) which is arranged on the back side corresponding to the sliding groove (21) and used for abutting against the back end of one of the nut body (41) and the self-locking sleeve (42);

and the air cylinder (30) is arranged on the operating platform (10), the acting end of the air cylinder can move back and forth along the sliding groove (21), and in the process of moving back, the air cylinder abuts against the front side of one of the nut body (41) and the self-locking sleeve (42) and drives the part to move back along the sliding groove (21) so as to be assembled with the other part correspondingly abutting against the abutting piece (22).

2. The pneumatic self-locking nut assembling machine according to claim 1, characterized in that: the device is characterized by further comprising a positioning block (50) arranged at the front part of the fixed seat (20), wherein the positioning block (50) is provided with a guide hole (51) which is penetrated through from front to back, and an output shaft (31) of the air cylinder (30) is movably penetrated in the guide hole (51) from front to back.

3. The pneumatic self-locking nut assembling machine according to claim 2, characterized in that: the self-locking nut further comprises a pressing block (32) detachably connected to the end portion of the output shaft (31) of the air cylinder (30), and the pressing block (32) is matched with the end portion of the self-locking nut (40) in size.

4. The pneumatic self-locking nut assembling machine according to claim 1, characterized in that: and the foot switch (60) is used for controlling the action of the air cylinder (30).

5. The pneumatic self-locking nut assembling machine according to any one of claims 1 to 4, wherein: the sliding groove (21) is a V-shaped groove.

6. The pneumatic self-locking nut assembling machine according to claim 5, characterized in that: an included angle (alpha) formed by two opposite side walls of the V-shaped groove is 60 degrees, and the two opposite side walls of the V-shaped groove are correspondingly supported on two corresponding side edges of the nut body (41) and the self-locking sleeve (42), so that a chip groove (210) is formed in the bottom space of the V-shaped groove.

7. The pneumatic self-locking nut assembling machine according to claim 6, characterized in that: the V-shaped groove is a through groove which is communicated from front to back.