CN221473425U - Hob control part - Google Patents

Abstract

The utility model discloses a hob control part, which comprises a third sliding block used for fixing a first hob assembly, a fourth sliding block used for fixing a second hob assembly and a single-air-pipe clamping jaw cylinder used for driving the third sliding block and the fourth sliding block to synchronously move in opposite directions, wherein a reset spring is arranged between the third sliding block and the fourth sliding block. The hob feed control is realized by adopting the single-air-pipe clamping jaw air cylinder, and meanwhile, the reset is realized by adopting the reset spring, so that the problem of air pipe twisting is effectively solved.

Description

Hob control part

Technical Field

The utility model relates to the field of wire spring jack processing equipment, in particular to a hob control component.

Background

The wire spring jack is one of the electrical connectors and is widely used due to its excellent electrical contact performance, soft and stable low insertion and extraction force, high adaptability to the vibration impact of the mechanism, long service life tens of times that of other structural connectors, and low failure rate which is several orders of magnitude lower than that of other structural jack contact technology.

The wire spring jack comprises a lining core, a front sleeve, a tail sleeve and a spring wire wound on the lining core, and the lining core is arranged in the front sleeve and the tail sleeve as shown in fig. 4. The front sleeve and the tail sleeve are generally made of brass, and in the thin-wall wire spring jack, the riveting process is the final assembly process after part electroplating, so that the appearance of the part is not allowed to be damaged, the requirements of the prior art are limited, and four pits are uniformly extruded at the periphery of the joint of the front sleeve and the tail sleeve by adopting the point riveting process.

But the wire spring jack processed by the spot riveting process has still to be further improved in riveting force. The wire spring jack adopting the rolling riveting structure can effectively improve the riveting force, but the thin-wall wire spring jack is processed by adopting the existing rolling riveting process because the wall of the wire spring jack is thinner, the appearance of the wire spring jack is damaged, and the processing quality is lower.

Based on the inventor, a rolling riveting process applicable to the processing of the thin-wall wire spring jack is developed. However, when the existing hob control part for machining the wire spring jack adopts a double-air-pipe clamping jaw cylinder to realize driving, an air pipe of the hob control part is easy to twist and twist when the revolution machining is met, and the machining is affected.

Disclosure of utility model

The utility model provides a hob control part, which adopts a single air pipe type clamping jaw air cylinder to realize hob feed control, and adopts a reset spring to realize reset, so that the problem of air pipe twisting is effectively solved.

The aim of the utility model is achieved by the following technical scheme:

The utility model provides a hob control part, which comprises a third slide block used for fixing a first hob component, a fourth slide block used for fixing a second hob component, a single-air-pipe clamping jaw cylinder used for driving the third slide block and the fourth slide block to synchronously and oppositely move,

And a reset spring is arranged between the third sliding block and the fourth sliding block.

The utility model has the following advantages:

The scheme adopts a single air pipe type clamping jaw cylinder to realize hob feed control, and the air pipe is simultaneously used as an air inlet passage and an air outlet passage; the hob reset adopts a reset spring; the air pipe of clamping jaw cylinder accessible cavity rotary platform cavity external come out, is connected with outside pneumatic equipment through a rotary joint, has effectively avoided the air pipe to twist around when rotatory problem.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a wire spring jack;

FIG. 2 is a cross-sectional view of the wire spring receptacle after roll riveting, wherein the spring wire is not shown;

FIG. 3 is a cross-sectional view of the wire spring receptacle without the roll rivet, wherein the spring wire is not shown;

FIG. 4 is a schematic diagram of a conventional thin-walled wire spring receptacle;

FIG. 5 is a schematic view of the contact state of the wire spring jack positioning structure ejector pin and the wire spring jack, wherein the first control component and the second control component are not included;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of the wire spring jack positioning structure in a non-contact state of the ejector pin and the wire spring jack, wherein the first control component and the second control component are absent;

FIG. 8 is a schematic diagram of the structure of the ejector pin and the second control member in the wire spring jack positioning structure;

fig. 9 is a schematic structural view of the core print, the first control member and the position adjusting device in the wire spring jack positioning structure.

FIG. 10 is a schematic diagram of a hob configuration;

FIG. 11 is a schematic illustration of the configuration of a first hob assembly, a second hob assembly and a third control component in a hob configuration;

FIG. 12 is a schematic view of the construction of a first hob assembly or a second hob assembly;

FIG. 13 is a cross-sectional view A-A of FIG. 12;

FIG. 14 is a bottom view of the hob configuration;

fig. 15 is a schematic structural view of the wire spring jack processing apparatus.

The reference numerals in the figures are:

11. A front sleeve; 12. a tail sleeve; 121. a step structure; 13. a core liner; 14. a limiting ring; 15. a roll riveting structure; 16. an inclined plane structure;

211. a core seat; 2111. positioning holes; 212. a clamping jaw; 213. a thimble; 2131. a limiting ring;

221. A bearing; 222. an inner cylinder; 223. an end cap; 224. a buffer structure; 225. a rotating cylinder;

231. A first guide rail; 232. a first slider; 233. a first driving structure; 234. a detection sheet; 235. a position detection structure;

241. a second guide rail; 242. a second slider; 243. a second driving structure;

251. A first control part;

311. A hob; 312. a rotating lever; 313. an outer cylinder; 314. a bearing;

321. A third slider; 322. a fourth slider; 33. a travel limit structure; 34. a return spring; 35. a third driving structure; 36. an air pipe; 37. a hollow rotating platform; 371. a mounting plate;

4. a control unit; 5. an operating table.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to improve the riveting force of the existing thin-wall wire spring jack, the utility model provides the wire spring jack, and the wall thickness of the front sleeve 11 and the tail sleeve 12 of the wire spring jack is smaller than 0.15mm. Specifically, referring to fig. 1 to 3, the wire spring jack comprises a front sleeve 11, a tail sleeve 12, a bushing core 13 and a spring wire wound on the bushing core, wherein two limiting rings 14 are arranged on the outer wall of the bushing core 13, the joint of the front sleeve and the tail sleeve is arranged between the two limiting rings 14, and the outer diameters of the front sleeve 11 and the tail sleeve 12 are equal, the wall thicknesses are equal and are smaller than 0.15mm; the joint of the front sleeve 11 and the tail sleeve 12 is provided with a circle of rolling riveting structure 15.

Because the wall of the thin-wall wire spring jack is thinner and has high requirements on the processing technology, for example, the appearance cannot be damaged. By adopting the existing roll riveting process, the appearance is unavoidably damaged due to friction between the roll riveting and tool parts. Therefore, the inventor researches and develops the process, and further researches and develops the processing technology of the thin-wall wire spring jack, so that the rolling riveting structure 15 is processed at the joint of the front sleeve 11 and the tail sleeve 12, abrasion is not brought to the joint of the front sleeve 11 and the tail sleeve 12, the qualification rate of workpiece processing is ensured, and the riveting force of the thin-wall wire spring jack is improved. Specifically, the processing technology of the roll riveting structure 15 of the thin-wall wire spring jack is important to include the following technical points:

1. The positioning of the wire spring jack workpiece is realized by that the wire spring jack to be processed is provided with two parts which are not integral with each other, and the radial positioning is ensured when the axial positioning is required to be realized.

2. In the rolling riveting process, the wire spring jack workpiece is kept stationary, and after the hob symmetrical on two sides of the workpiece moves up and down to a proper position, the hob is fed to the rolling riveting depth along the radial direction, and meanwhile, the hob axially rotates around the workpiece and simultaneously needs to keep autorotation movement, so that the workpiece is completely riveted. The two hob are symmetrical at two sides of the workpiece, and the position of the rotating shaft center is ensured to be always motionless in the rolling riveting process.

3. When the hob on two sides of the workpiece feeds in the radial direction, the same feed amount of the hob and the hob needs to be ensured.

The technical difficulties are overcome, and the process and related equipment structures are improved, so that the thin-wall wire spring jack rolling riveting processing with the wall thickness smaller than 0.15mm is solved, and the riveting force of the thin-wall wire spring jack is improved.

The outer diameter and the inner diameter of the front sleeve 11 and the rear sleeve 12 are respectively equal, that is, the wall thicknesses thereof are equal, and the front sleeve 11 and the rear sleeve 12 are small in size, the outer diameter is 1.0mm to 1.5mm, and the wall thickness can be 0.1mm, 0.11mm, 0.08mm or 0.07mm.

In order to further improve the quality of the wire spring jack, the junction of the front sleeve and the rear sleeve is provided with a bevel structure 16, as shown in fig. 3. By roll riveting the bevel structure 16, a concave ring, namely a circle of roll riveting structure 15, can be pressed out of the front sleeve and the tail sleeve.

The front sleeve 11 and the tail sleeve 12 are in the prior art, specifically, the end part of the tail sleeve 12 is provided with a step structure 121, so that the tail sleeve 12 comprises a tail sleeve rear section and a tail sleeve front section connected with the front sleeve 11, and the diameter of the tail sleeve rear section arranged at the step structure 121 is smaller than that of the tail sleeve front section.

Based on the technical difficulties of the wire spring jack and the processing technology thereof, the utility model provides a rolling riveting machine for processing the wire spring jack. The rolling riveting machine comprises a plurality of parts, and specifically comprises a wire spring jack positioning structure, a hob structure and a control unit 4.

Referring to fig. 5 to 9, the wire spring jack positioning structure includes a core holder 211, clamping jaws 212 disposed at both sides of the core holder 211, a thimble 213 disposed at the top end of the core holder 211, a first control member 251 for controlling the clamping jaws 212 to move radially along the core holder 211, and a second control member for controlling the thimble 213 to move axially along the core holder 211. The core holder 211 is provided with a positioning hole 2111, and the thimble 213 is coaxially provided with the positioning hole 2111.

Preferably, the bottom end of the thimble 213 is tapered to achieve reliable positioning of the wire spring jack.

By adopting the positioning structure, the aperture of the positioning hole 2111 is larger than or equal to the diameter of the rear section of the tail sleeve, so that the rear section of the tail sleeve can be placed into the positioning hole 2111, and the aperture of the positioning hole 2111 is smaller than the diameter of the front section of the tail sleeve, so that the unidirectional accurate positioning and radial coarse positioning of the wire spring jack are realized in the axial direction. The clamping jaws 212 are disposed on two sides of the core holder 211, specifically, the two clamping jaws 212 are symmetrically disposed on two sides of the core holder 211 with the axis of the positioning hole 2111 as a symmetry axis, so as to realize radial accurate positioning and clamping of the wire spring jack. The thimble 213 realizes the unidirectional accurate positioning of the wire spring jack from the top of the wire spring jack. By adopting the positioning structure, the positioning of the wire spring jack in all directions can be realized.

Because the wire spring jack is smaller, the related component structures of the rolling riveting machine are smaller. Because the two hob heads of the hob structure need to feed from two sides of the workpiece simultaneously, two hob heads of the hob structure need to be arranged at two sides of the thimble 213, and in order to facilitate the installation of the positioning structure and not to influence the processing quality of the wire spring jack, one end of the thimble 213 is provided with a follow-up component which follows the thimble 213 in the radial direction, and the follow-up component is connected with a rotating cylinder 225 through a bearing 221. By adopting the arrangement of the follow-up component, the bearing 221 and the rotating cylinder 225, the thimble moves down to the corresponding processing height after moving down along with the hob, and the thimble is abutted with the top of the wire spring jack, and during processing, the thimble and the follow-up component can keep relatively motionless with the wire spring jack, and the hob and the rotating cylinder 225 follow-up.

The follower and the ejector pin 213 may be fixedly connected, but the ejector pin is in hard contact with the wire spring jack when moving downward. In order to avoid hard pressure of the thimble during downward movement, a buffer structure 224 is arranged between the follower and the thimble 213.

Specifically, referring to fig. 6, the follower includes an inner cylinder 222 disposed in a bearing 221 and having both ends opened, and an end cover 223 for closing the top end of the inner cylinder 222, and the inner cylinder 222 includes a first hole section disposed at the top end of the inner cylinder 222, and a second hole section disposed at the bottom end of the inner cylinder 222 and having a diameter smaller than that of the first hole section; the bottom end of the thimble 213 is arranged outside the inner cylinder 222, the top end is arranged in the first hole section, and the top end is provided with a limiting ring 2131 with the outer diameter larger than that of the second hole Duan Zhijing; the buffer structure 224 is a spring, which is sleeved on the thimble and is disposed between the stop ring 2131 and the end cover 223.

By adopting the structure, the pressure of the wire spring jack when the thimble moves downwards is regulated by regulating the expansion and contraction amount of the spring, so that the processing quality of the wire spring jack is improved. Two hole sections of the inner barrel 222 are arranged to form a step structure, so that the ejector pin is limited, and when the ejector pin is not contacted with the wire spring jack, the spring pushes the limiting ring 2131 to move downwards to be abutted with the step structure; after the pins contact the wire spring receptacles, the springs are compressed and the pins move upward relative to the inner barrel 222 until the hob is moved to the proper height. It should be noted that, the azimuth terms, such as bottom, top, etc., refer to the azimuth of the state in normal use.

To improve the positioning stability of jaw 212 to the wire spring receptacle, the ends of jaw 212 are provided with arcuate grooves. The diameter of the arcuate slot is best adapted to the outer diameter of the tail sleeve 12.

On the basis of any one of the above structures, in order to facilitate the placement of the wire spring insertion hole in the positioning hole 2111, the first control member is provided on the first position adjusting device. In order to facilitate the intelligent control, referring to fig. 9, the first position adjusting device includes a first guide rail 231, a first slider 232, a first driving structure 233 for controlling the first slider 232 to move along the first guide rail 231, a detecting piece 234 fixed on the first slider 232, and a position detecting structure 235 for detecting the position of the detecting piece.

The first control member may be implemented in a variety of ways, such as an existing lead screw, rail plus motor configuration, or as shown in fig. 9, using a jaw cylinder.

Taking a clamping jaw cylinder as an example, two clamping jaws 212 are fixed on the clamping jaw cylinder to realize the movement control of the clamping jaws, and a core seat 211 can be directly fixed on the clamping jaw cylinder.

The first driving structure 233 can also be implemented by various structures, such as an existing screw, rail and motor structure, or an air cylinder.

The location detection structure 235 is implemented in many ways, such as infrared detection. In order to facilitate control of the position of the wire spring jack, the position detection structure comprises a home position detection unit and at least one maximum travel detection unit. Illustratively, referring to FIG. 9, there are two maximum travel detection units, one on each side of the home position detection unit. When the in-situ detection unit detects the detection piece, the axis of the wire spring jack is judged to be coincident with the axis of the thimble 213, and the processing station is reached. When the maximum stroke detecting unit detects the detecting piece, it is determined that the wire spring insertion hole can be placed.

The second control means may be implemented in a number of ways. Illustratively, as shown in fig. 8, the second control member includes a second rail 241, a second slider 242, and a second driving structure 243 for controlling movement of the second slider 242 along the second rail 241. The second driving structure 243 may be implemented using a screw plus motor, or an air cylinder.

After the wire spring jack is positioned accurately and stably, the rolling riveting processing is realized by adopting a hob structure, and as described above, in the rolling riveting processing process, the movement of the hob has a plurality of technical difficulties.

In order to solve the above technical difficulties, when the hob on two sides feeds in the radial direction, the hob needs to ensure that the feed amount of the hob is the same, and the hob needs to keep rotating and revolving in the roll riveting process, referring to fig. 10 to 13, the hob structure includes a first hob assembly, a second hob assembly, a third control component for driving the first hob assembly and the second hob assembly to move, and a hollow rotating platform 37 for driving the third control component to rotate.

The first hob assembly and the second hob assembly have the same structure and comprise an outer barrel 313 and a hob 311 which is connected to the outer barrel 313 and rotates around the axis of the outer barrel 313. By adopting the hob assembly, the hob can keep autorotation in the roll riveting process. The third control part is driven by the hollow rotating platform 37 to drive the hob assembly to rotate, so that the hob keeps revolution relative to the wire spring jack in the rolling riveting process.

The third control part comprises a third sliding block 321 for fixing the first hob assembly, a fourth sliding block 322 for fixing the second hob assembly, and a third driving structure 35 for driving the third sliding block 321 and the fourth sliding block 322 to synchronously move towards each other; a travel limit structure 33 is disposed between the third slider 321 and the fourth slider 322. The hob assembly is controlled by the third control part to control the two hob to move in opposite directions, so that the control of feeding and retracting is realized. During installation, the axis of the wire spring jack coincides with the middle point of the connection of the centers of the two hob, the third control component controls the third slide block 321 and the fourth slide block 322 to synchronously move, namely the speed is the same, the movable quantity of the two hob is limited through the stroke limiting structure 33, when the two hob move towards the direction close to each other and move to the maximum displacement, the feed quantity of the two hob is the same, and meanwhile, the middle point of the connecting line of the centers of the two hob in the first hob component and the second hob component coincides with the axis of the wire spring jack to be processed.

The stroke limiting structure 33 is realized in many ways. At least one group of travel limit structures 33 is provided, and in order to enhance structural stability, the travel limit structures 33 may be provided in multiple groups, such as 2 groups, 3 groups, etc.

There are many ways to implement each set of travel limit structures 33, such as a single or two limit bars or screws.

Illustratively, each set of travel limiting structures 33 includes one or two limit bars. Depending on the number of limit bars, they may be directly fixed to either or both of the third slider 321 and the fourth slider 322. In a specific structure, only one limiting rod is arranged on the third sliding block 321 and between the third sliding block 321 and the fourth sliding block 322. The length of the limiting rod should be met, and when the third driving structure 35 controls the limiting rod to abut against the fourth sliding block 322, the two hob just reach the maximum feed amount. In a specific structure, each set of travel limiting structures 33 consists of two limiting rods, at this time, two limiting rods are arranged on the same straight line of screws, one limiting rod is fixed on the third sliding block 321, and the other limiting rod is fixed on the fourth sliding block 322; when the two limiting rods are abutted under the control of the third control part, the two hob move to the maximum displacement, namely the designed feed amount.

The outer diameters of the front sleeve 11 and the tail sleeve 12 of the wire spring jacks with different specifications are different, and in order to be convenient for processing the wire spring jacks with various specifications and be suitable for processing the rolling riveting structures with different rolling riveting depths, namely the feed amount, the stroke limiting structure 33 is preferably a screw. Because the diameter of the wire spring jack is small, the screw can be finely adjusted, and the machining precision is improved. Similarly, at least one screw may be directly fixed to either one or both of the third slider 321 and the fourth slider 322 depending on the number of screws. The specific arrangement of the screws in each set of travel limit structures 33 is described with reference to the specific structure of the limit lever. As shown in fig. 14, it is shown that 2 sets of travel limit structures are used, each set of travel limit structure includes two screws placed on the same straight line, and the two screws are respectively located on the third slider 321 and the fourth slider 322 through screw holes.

The hob 311 is connected to the outer cylinder 313 and rotates around the outer cylinder 313, and the hob 311 is rotatably connected to the inner rotating rod 312 in a plurality of manners, for example, referring to fig. 13, the rotating rod 312 and the outer cylinder 313 are rotatably connected through a bearing 314. For enhancing structural stability, two bearings 314 may be provided, respectively disposed at both ends of the outer cylinder 313.

The third driving structure 35 drives the third slider 321 and the fourth slider 322 to move synchronously and oppositely. The third drive structure 35 is more realized, and for simplifying the structure, a clamping jaw cylinder is preferably adopted.

A typical jaw cylinder includes two air pipes, an intake air pipe and an exhaust air pipe. However, when the hollow rotary platform 37 controls the revolution of the hob, the external air pipe of the clamping jaw air cylinder can "twist" along with the revolution motion. For this purpose, the inventors have further developed that the third driving structure 35 employs a single air pipe type jaw cylinder, i.e., the jaw cylinder has only one air passage, which serves as both an air intake passage and an air exhaust passage. The air pipe 36 is externally connected with the hollow part of the hollow rotary platform 37 and is connected with external air pressure equipment through a rotary joint. The rotary joint allows the upper part and the lower part to freely rotate while ventilation is performed, air leakage is avoided, and the problem that the air pipe is twisted and twisted during rotation is avoided. The use of a single-gas-tube jaw cylinder makes resetting difficult, for which purpose a further return spring 34 is arranged between the third slide 321 and the fourth slide 322. The reset spring 34 pushes the third slider 321 and the fourth slider 322, the pushing force moves the third slider 321 and the fourth slider away from each other, and after the air supply of the air pressure equipment outside the air pipe is stopped, the reset control of the hob is realized by the reset spring.

In order to enhance the structural stability, a return spring 34 is sleeved on the screw.

The control unit is connected with the wire spring jack positioning structure and the hob structure, so that the positioning structure controls the wire spring jack to be processed to be fixed when the wire spring jack is processed; the two hob with the hob structure are symmetrically arranged at the rolling riveting position of the wire spring jack, the feeding of the two hob is controlled to be synchronous and the speed is consistent, and the two hob rotates and revolves at least one circle along the wire spring jack to be processed while feeding.

Specifically, referring to fig. 15, the first rail 231 is fixed to a horizontal operation table 5, the second rail is vertically fixed to the operation table 5, and the hollow rotation platform 37 is fixed to the second slider 242. The hollow rotary platform 37 is externally connected with a driving motor, a mounting plate 371 is fixed on an output shaft of the hollow rotary platform 37, a third driving structure and a rotary cylinder 225 are both fixed on the mounting plate 371, and the mounting position of the rotary cylinder 225 is such that the axis of the thimble 213 and the axis of the positioning hole 2111 are on the same straight line during the roll riveting processing, and the axis of the thimble 213 is arranged on the midpoint of the central connecting line of two hobs in the first hob assembly and the second hob assembly. The hollow rotary table 37 is a hollow member, and rotates about the axis of the positioning hole 2111 when the roll riveting process drives the mounting plate 371 to rotate. The mounting plate 371 is provided with a recess for introducing a single branch air tube 36 of a single air tube type clamping jaw cylinder of the third driving structure 35 to the hollow part of the hollow rotating platform 37 for communication with the air pressure device.

In the specific processing process, the first sliding block is controlled to move, and when the maximum stroke detection unit detects a detection piece, a wire spring jack to be processed is placed in a positioning hole 2111 of a core seat; the first control member 251 controls the two clamping jaws 212 to close the clamping wire spring receptacle. And then the first sliding block is controlled to reversely move until the in-situ detection unit detects the detection piece, and at the moment, the axis of the thimble 213 coincides with the axis of the wire spring jack. And then the second driving structure 243 is controlled to drive the second sliding block to move downwards, so as to drive the thimble 213, the first hob assembly and the second hob assembly to move downwards, and the thimble, the first hob assembly and the second hob assembly are moved downwards to the joint of the hob, the front sleeve and the tail sleeve, namely the positions to be processed are aligned, at the moment, the thimble is matched with the core seat and the clamping jaw, and the fixation of the wire spring jack is realized so as to ensure that the wire spring jack is kept motionless in the rolling riveting process. The third driving structure is then controlled to bring the first hob assembly and the second hob assembly closer to each other to contact the wire spring jack. And then the third driving structure is continuously controlled to enable the first hob assembly and the second hob assembly to be mutually close to the feeding depth to the rolling riveting depth, and meanwhile, the hollow rotating platform 37 is controlled to operate, so that the two hob axially rotate around the wire spring jack for more than one circle and the rotating shaft center position is always motionless in the rotating process, and the wire spring jack is guaranteed to be completely riveted. Thus, a wire spring socket having a round of roll-rivet structure 15 as shown in fig. 1 is manufactured. And then, controlling the third driving structure to enable the first hob assembly and the second hob assembly to move in the directions away from each other, controlling the second driving structure 243 to drive the second slider to move upwards for resetting after retracting, and finally, controlling the first slider to move until the maximum stroke detection unit detects the detection piece, and then, taking down the processed wire spring jack.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. A hob control component, characterized in that: comprises a third sliding block (321) for fixing a first hob assembly, a fourth sliding block (322) for fixing a second hob assembly, and a single-air-pipe clamping jaw cylinder for driving the third sliding block (321) and the fourth sliding block (322) to synchronously move in opposite directions,

A return spring (34) is arranged between the third sliding block (321) and the fourth sliding block (322).

2. A hob control part according to claim 1, characterized in, that: a rotary joint is connected to an air pipe (36) of the clamping jaw air cylinder.

3. A hob control part according to claim 1, characterized in, that: and a travel limit structure (33) is arranged between the third sliding block (321) and the fourth sliding block (322).

4. A hob control part according to claim 3, characterized in, that: at least one group of travel limiting structures (33) is arranged, and each group of travel limiting structures comprises one or two limiting rods.

5. A hob control part according to claim 3, characterized in, that: at least one group of travel limiting structures is arranged, and each group of travel limiting structures comprises one or two screws.

6. A hob control component according to claim 5, characterized in, that: each group of travel limiting structure comprises a screw, and the screw is connected to the third sliding block (321) or the fourth sliding block (322) through a screw hole.

7. A hob control component according to claim 5, characterized in, that: each group of travel limiting structure comprises two screws which are arranged on the same straight line, and the two screws are respectively arranged on the third sliding block (321) and the fourth sliding block (322) through screw holes.

8. A hob control part according to claim 6 or 7, characterized in, that: the reset spring (34) is sleeved on the screw.