CN221184559U - Driving mechanism of self-drilling screw forming machine - Google Patents

Abstract

The utility model discloses a driving mechanism of a self-drilling screw forming machine, which comprises a frame, an eccentric shaft arranged on the frame and a forming module arranged at the top end of the frame in a relatively sliding manner, wherein the forming module is respectively connected with the eccentric shaft through a transmission structure, the transmission structure comprises a crank rotationally sleeved on the eccentric shaft, a rocker arm hinged to the crank and a push rod hinged to the rocker arm, a lining tile is arranged between the crank and the eccentric shaft, and a temperature sensor for sensing the temperature of the lining tile is embedded in the crank. The utility model has simple structure, the temperature sensor is arranged in the crank, the temperature of the lining tile is monitored, and the occurrence of locking and other conditions is avoided.

Description

Driving mechanism of self-drilling screw forming machine

Technical Field

The utility model relates to the technical field of self-drilling screw forming machines, in particular to a driving mechanism of a self-drilling screw forming machine.

Background

The screw is a common fastener, and is widely used for fixing or combining machinery, electric appliances, furniture, buildings and the like, but an object is required to be provided with a screw hole corresponding to the screw in advance, so that the screw can be smoothly screwed, and the self-drilling screw with drilling capability can be used for quickly tapping and screwing the object in the situation that the object cannot be provided with the screw hole in advance. The special equipment for the production of the self-drilling screw is characterized in that a forming module drives a die to open and close in a reciprocating manner through symmetrically arranged sliding seats, a power source of the special equipment is an eccentric shaft driven by a motor and a connecting rod mechanism connected with the eccentric shaft, a lining tile is arranged corresponding to the connecting rod and an eccentric shaft support, a crank and the eccentric shaft repeatedly rotate at the lining tile, the temperature of the lining tile is increased due to friction heat generation and other reasons, the lining tile is arranged in a frame and cannot be directly measured and observed, and when the lining tile is overheated to cause thermal deformation, the special equipment can cause defects such as locking and the like, so that the equipment is damaged. Accordingly, improvements are needed.

Disclosure of utility model

The utility model aims to provide a driving mechanism of a self-drilling screw forming machine, which overcomes the defects in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model discloses a driving mechanism of a self-drilling screw forming machine, which comprises a frame, an eccentric shaft arranged on the frame and a forming module arranged on the top end of the frame in a relatively sliding manner, wherein the forming module is respectively connected with the eccentric shaft through a transmission structure, the transmission structure comprises a crank, a rocker and a push rod which are sequentially arranged, one end of the crank is rotatably sleeved on the eccentric shaft, the other end of the crank is hinged with the rocker through a first hinge shaft, one end of the rocker, which is away from the first hinge shaft, is hinged with the push rod through a second hinge shaft, the rocker is hinged with the frame through a third hinge shaft, the third hinge shaft is arranged between the first hinge shaft and the second hinge shaft, a lining tile is arranged between the crank and the eccentric shaft, and a temperature sensor for sensing the temperature of the lining tile is embedded in the crank.

Further, in the driving mechanism of the self-drilling screw forming machine, the crank comprises a handle portion, a first half ring plate and a second half ring plate which are respectively connected to the handle portion, corresponding end portions of the first half ring plate and the handle portion are rotatably sleeved on the lining tiles, and corresponding end portions of the second half ring plate and/or the handle portion are sleeved on the first hinge shaft.

Further, in the driving mechanism of the self-drilling screw forming machine, a mounting hole corresponding to the temperature sensor is formed in the first semi-annular plate or the handle, and the mounting hole is formed along the radial direction of the bushing.

Further, in the driving mechanism of the self-drilling screw forming machine, the push rod comprises a connecting section and a stud, wherein the connecting section is hinged to the corresponding forming module through a fourth hinge shaft, and the stud vertically penetrates through the second hinge shaft.

Further, in the driving mechanism of the self-drilling screw forming machine, adjusting nuts are respectively connected to two sides of the stud, which are located on the second hinge shaft.

Further, in the driving mechanism of the self-drilling screw forming machine, a connecting boss corresponding to the stud is protruded from the outer wall of the second hinge shaft, and a through hole corresponding to the stud is formed in the connecting boss.

Further, in the driving mechanism of the self-drilling screw forming machine, two ends of the second hinge shaft are respectively connected to the rocker arm in a rotating manner through bearings, wedge-shaped blocks are respectively arranged on two sides of one end, close to the second hinge shaft, of the rocker arm, and mounting holes corresponding to the bearings are respectively formed between the wedge-shaped blocks and the rocker arm.

Compared with the prior art, the utility model has the advantages that: the utility model has simple structure, the temperature sensor is arranged in the crank, the temperature of the lining tile is monitored in real time, the occurrence of locking and other conditions caused by overheating of the lining tile is avoided, and the service life of the equipment is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

Fig. 1 is a schematic view showing a driving mechanism of a self-drilling screw forming machine according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a driving mechanism of a self-drilling screw forming machine with a frame omitted in an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a transmission structure according to an embodiment of the utility model.

Fig. 4 shows an exploded view of the crank and eccentric shaft in an embodiment of the utility model.

FIG. 5 is a schematic diagram illustrating the installation of a temperature sensor according to an embodiment of the present utility model.

Fig. 6 is an exploded view of a second hinge shaft and a push rod according to an embodiment of the present utility model.

Detailed Description

The following detailed description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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.

As shown in fig. 1 to 6, a driving mechanism of a self-drilling screw forming machine comprises a frame 1, an eccentric shaft 2 arranged on the frame 1 and a forming module arranged on the top end of the frame 1 in a relative sliding manner, wherein the forming module is connected with the eccentric shaft 2 through a transmission structure, the transmission structure comprises a crank 3, a rocker arm 4 and a push rod 5 which are sequentially arranged, one end of the crank 3 is rotationally sleeved on the eccentric shaft 2, the other end of the crank 3 is hinged with the rocker arm 4 through a first hinge shaft, one end of the rocker arm 4, which is away from the first hinge rod, is hinged with the push rod 5 through a second hinge shaft 6, the rocker arm 4 is hinged with the frame 1 through a third hinge shaft, the third hinge shaft is arranged between the first hinge shaft and the second hinge shaft 6, a lining tile 7 is arranged between the crank 3 and the eccentric shaft 2, and a temperature sensor 8 for sensing the temperature of the lining tile 7 is embedded in the crank 3.

In the technical proposal, the frame, the eccentric shaft and the forming module are all of conventional structure, the eccentric shaft is arranged on the frame through conventional bearings/bearing seats/bushings and the like in a rotating way and is connected with an external motor and the like to provide power for the sliding of the forming module, the bottom end of the rocker arm is provided with two parallel first hinge arms, a first hinge groove for accommodating the corresponding end part of the crank is formed between the first hinge arms, the two ends of the first hinge shaft are respectively arranged on the corresponding first hinge arms through conventional bearings/bearing seats/bushings and the like in a rotating way, two parallel second hinge arms are respectively protruded and stretched on the two sides of the outer wall of the frame, a second hinge groove for accommodating the rocker arm is formed between the two second hinge arms, the two ends of the third hinge shaft are respectively arranged on the corresponding second hinge arms through conventional bearings/bearing seats/bushings and the like in a rotating way, the top end side of the rocker arm is respectively protruded with two parallel third hinge arms, a third hinge groove for accommodating the push rod is formed between the two third hinge arms, two ends of the second hinge shaft are respectively arranged on the corresponding third hinge arms through conventional bearings/bearing seats/bushings and the like in a rotating way, conventional oil filling holes and the like are also formed at the hinge positions, the conventional oil filling holes and the like are matched with conventional oil nozzles and the like for filling lubricating oil, the end parts of the hinge shafts are provided with end covers and other conventional structures, dust and the like are prevented from entering, the eccentric shafts are driven by an external motor to rotate, the corresponding forming modules are driven to slide through a crank, the rocker arm and the push rod, the forming processing of the drill tail screw is completed, a temperature sensor is embedded in the crank and used for sensing the temperature of the lining tiles in real time, the temperature sensor is required to be stopped for cooling or overhauling when the measured temperature exceeds a set value, the structure and the principle of the temperature sensor belong to the prior art and are not repeated here, avoid the bushing to overheat and cause the appearance of locking etc. condition, extension equipment's life.

As shown in fig. 2 to 5, the crank 3 includes a shank 31, and a first half ring plate 32 and a second half ring plate 33 respectively connected to the shank 31, corresponding ends of the first half ring plate 32 and the shank 31 are rotatably sleeved on the bushing 7, and corresponding ends of the second half ring plate 33 and the shank 31 are sleeved on the first hinge shaft.

In this technical scheme, eccentric part both ends department of eccentric shaft forms the step respectively, and bushing and crank can't directly suit in the eccentric shaft, and the bushing is formed by the concatenation of both ends two parts of symmetry, and the axial is spacing through the step of eccentric part tip, and radial through the corresponding tip spacing of first half ring plate and stalk portion, set up the location step between the corresponding tip of first half ring plate and second half ring plate and stalk portion respectively, make things convenient for the quick installation of first half ring plate and second half ring plate, and first half ring plate and second half ring plate all are fixed in the corresponding tip of stalk portion through conventional bolt.

Illustratively, as shown in fig. 2, 3 and 6, the first semi-annular plate 32 and/or the shank 31 are provided therein with mounting holes corresponding to the temperature sensor 8, the mounting holes being disposed along the radial direction of the bushing 7.

In the technical scheme, the mounting hole is of a threaded hole structure, the temperature sensor is directly fixed in the mounting hole by utilizing external threads of the temperature sensor or an existing mounting device and the like, and the sensing end of the temperature sensor is close to the lining tile and used for sensing the temperature of the lining tile in real time.

As shown in fig. 2, 3 and 6, the push rod 5 includes an integrally formed connecting section 51 and a stud 52, the connecting section 51 is hinged to the corresponding forming module by the fourth hinge shaft 9, and the stud 52 vertically penetrates and is connected to the second hinge shaft 6.

In the technical scheme, two ends of the fourth hinge shaft are respectively fixed at corresponding positions of the forming module, the connecting section is sleeved on the fourth hinge shaft through conventional bearings/bearing seats/bushings and the like in a rotating mode, the stud vertically penetrates through and is connected to the second hinge shaft, when the rocker rotates, the second hinge shaft drives the push rod to move, sliding of the forming module is achieved, the forming module limits the moving direction through conventional structures such as guide rails, the push rod is hinged to the corresponding forming module through the fourth hinge shaft, the push rod is stressed along the axial direction all the time, deformation and the like are avoided.

As shown in fig. 2, 3 and 6, for example, adjusting nuts 53 are respectively connected to both sides of the stud 52 on the second hinge shaft 6.

In the technical scheme, the position of the forming module can be adjusted by adjusting the positions of the push rods relative to the second hinge shafts through the adjusting nuts on the two sides, so that the machining precision is improved.

As shown in fig. 2, 3 and 6, for example, the outer wall of the second hinge shaft 6 protrudes with a connection boss 61 corresponding to the stud 52, and a through hole 611 corresponding to the stud 52 is provided in the connection boss 61.

In this technical scheme, connect the boss and guarantee to have sufficient space processing through-hole in the second articulated shaft, guarantee the bulk strength of second articulated shaft simultaneously, connect the circumference processing of boss to have the plane of two symmetries, conveniently fix a position the processing through-hole, improve machining precision.

As shown in fig. 2, 3 and 6, two ends of the second hinge shaft 6 are respectively connected to the rocker arm 4 through bearings in a rotating manner, two sides of one end of the rocker arm 4, which is close to the second hinge shaft 6, are respectively provided with wedge blocks 41, and mounting holes corresponding to the bearings are respectively formed between the wedge blocks 41 and the rocker arm 4.

In the technical scheme, the two ends of the second hinge shaft are respectively connected with the third hinge arms of the rocker arm through conventional bearings/bearing seats/bushings and the like in a rotating manner, the circumferential surface of the second hinge shaft is provided with a connecting boss, so that the second hinge shaft cannot be directly inserted into the rocker arm, the two third hinge arms are respectively provided with wedge-shaped blocks, the installation of the second hinge shaft is facilitated, and the wedge-shaped blocks are fixed on the corresponding third hinge arms through conventional structures such as bolts and the like.

In summary, the utility model has simple structure, the temperature sensor is arranged in the crank, the temperature of the lining tile is monitored in real time, the occurrence of locking and other conditions caused by overheating of the lining tile is avoided, and the service life of the equipment is prolonged.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.

Claims (7)

1. The utility model provides a drive mechanism of self-drilling screw make-up machine, its characterized in that, including the frame, set up in the eccentric shaft of frame and relative slip set up in the shaping module on frame top, shaping module connect in through transmission structure respectively the eccentric shaft, transmission structure is including crank, rocking arm and the push rod that sets gradually, the one end rotation cover of crank is located the eccentric shaft, the other end hinge in through first articulated shaft rocking arm, the one end that the rocking arm deviates from first articulated shaft hinge in the push rod through the second articulated shaft, the rocking arm hinge in through the third articulated shaft in the frame, the third articulated shaft set up in between first articulated shaft and the second articulated shaft, be provided with the bushing between crank and the eccentric shaft, the crank is embedded to be equipped with the temperature-sensing ware that is used for the perception bushing temperature.

2. The drive mechanism of a self-drilling screw forming machine of claim 1, wherein: the crank comprises a handle part and a first half-ring plate and a second half-ring plate which are respectively connected with the handle part, the corresponding ends of the first half-ring plate and the handle part are rotatably sleeved on the lining tile, and the corresponding ends of the second half-ring plate and the handle part are sleeved on the first hinge shaft.

3. The drive mechanism of a self-drilling screw forming machine of claim 2, wherein: and mounting holes corresponding to the temperature sensors are formed in the first semi-annular plate and/or the handle part, and the mounting holes are formed along the radial direction of the lining tiles.

4. The drive mechanism of a self-drilling screw forming machine of claim 1, wherein: the push rod comprises an integrally formed connecting section and a stud, wherein the connecting section is hinged to the corresponding forming module through a fourth hinge shaft, and the stud vertically penetrates through the second hinge shaft.

5. The drive mechanism of the self-drilling screw forming machine according to claim 4, wherein: and adjusting nuts are respectively connected to the two sides of the stud, which are positioned on the second hinge shaft.

6. The drive mechanism of the self-drilling screw forming machine according to claim 4, wherein: the outer wall of the second hinge shaft is convexly extended with a connecting boss corresponding to the stud, and a through hole corresponding to the stud is arranged in the connecting boss.

7. The drive mechanism of the self-drilling screw forming machine according to claim 6, wherein: the two ends of the second hinge shaft are respectively connected to the rocker arm through bearings in a rotating mode, wedge-shaped blocks are respectively arranged on two sides of one end, close to the second hinge shaft, of the rocker arm, and mounting holes corresponding to the bearings are respectively formed between the wedge-shaped blocks and the rocker arm.