TWM636539U - Thread rolling machine - Google Patents

Abstract

A tooth rolling machine defines a interlayer space and includes a first guide and a second guide located in the interlayer space and spaced left and right. The mezzanine space includes an upper entrance area suitable for laterally entering several workpieces, and an outlet area located below the entrance area suitable for straightly leaving the workpieces. The first guide is located above the exit area. The second guide includes a curved section spaced obliquely below the first guide. The curved section bends and extends from top to bottom toward the exit area, and is suitable for changing direction in such a way that one end of each workpiece abuts against the first guide and the other end moves along the curved section. The utility model can change the direction of these workpieces, and is beneficial to send these workpieces into the space between two rubbing boards to rub out threads.

Description

tooth rubbing machine

The present invention relates to a processing machine tool, in particular to a thread rolling machine suitable for screw threads.

Referring to FIG. 1 , there are many types of screws. For example, there is a cap screw 11 with a screw head at one end as shown in FIG. 1 , and a double tooth screw 12 with threads at both ends as shown in FIG. 1 . Wherein, the capped screw 11 is to continuously send several workpieces with screw heads but not yet formed threads into a thread rubbing machine to process these workpieces, thereby making these workpieces form threads and become a threaded screw. head screw 11. Specifically, the workpieces are continuously conveyed between a fixed tooth plate of the tooth rubbing machine and a movable tooth plate that can move relative to the fixed tooth plate to rub and form threads. Wherein, because the shape of the workpiece and the structure of the fixed die plate and the movable die plate of the tooth rolling machine are common knowledge, they are not shown in the diagram.

Since the two ends of the workpieces used to make the cap screws 11 are different in weight and shape, the tooth rolling machine has a vibration-permeable design and a track-shaped shape when continuously conveying the workpieces. The changing design, or the two designs cooperate with each other, thereby changing the direction of the workpieces to match the fixed tooth plate and the movable tooth plate to rub the thread, but because the two ends of the double tooth screw 12 have the same structure, it is used to be Rubbing is processed into the two ends of the workpiece of described two tooth screw 12 also identical. Due to the same symmetry at both ends of the workpiece, it is difficult for the workpiece used to manufacture the double tooth screw 12 to change or adjust its direction through the aforementioned vibration or track design. Therefore, there is a real need to provide a solution that can change the orientation of the workpiece being machined to form the double tooth screw 12 .

The purpose of the present invention is to provide a tooth rolling machine capable of improving at least one shortcoming of the prior art.

The thread rolling machine is suitable for threading several workpieces and includes a feeding device.

The feeding device includes a base unit defining an interlayer space, and a guide unit installed on the base unit. The mezzanine space includes an upper entrance area adapted to allow each of the workpieces to extend laterally downwards, and an exit area located below the entrance area and adapted to allow each of the workpieces to exit vertically. The guide unit includes a first guide piece and a second guide piece located in the interlayer space and spaced left and right. The first guide is located above the exit area. The second guide piece includes a curved section extending from top to bottom toward the outlet area. The curved section and the first guide are adapted to cooperate for each of the workpieces to change direction in such a way that one end abuts the first guide and the other end moves along the curved section.

The effect of the new model is that the first guide and the second guide are suitable for cooperating to change the workpiece that will be processed into a double-thread screw from the horizontal extension to the vertical extension, so as to facilitate the The workpiece is sent into a fixed tooth plate and a movable tooth plate to rub the threads.

Referring to Fig. 2, an embodiment of the new tooth rubbing machine is suitable for machining workpieces 21 whose logarithmic branches are generally in the shape of round rods and whose left and right ends are symmetrical to each other as shown in Fig. Go out screw thread, make several two tooth screws 22 as shown in Figure 2. (Since the workpieces 21 and the two-thread screws 22 are identical to each other, only one of them is shown in Fig. 2 as a representative)

Referring to Figures 3 to 5, the present embodiment comprises a tooth rubbing device 31 for rubbing the workpieces 21 out of threads, a feeding device 32 for transporting the workpieces 21 to the tooth rubbing device 31, a To control these workpieces 21 and the feeding device 33 (see Fig. 4 ) of the speed moving down in the feeding device 32, and a pushing device for pushing these workpieces 21 into the tooth rubbing device 31 one by one 34 (see Figure 5). As for the structure of other parts in this embodiment, it belongs to the common knowledge of the tooth rolling machine, so the description will be omitted. Wherein, because the structure of the machine tool is relatively complicated, in order to facilitate the reader's understanding, in the following description, a relatively complete description will be provided for the tooth rubbing device 31 and the feeding device 32, and then the feeding device 33 and the feeding device 32 will be described in detail. Pushing device 34.

The tooth rubbing device 31 includes a fixed fixed tooth plate 311, a movable tooth plate 312 (see Fig. 4 ) that can be driven to move back and forth parallel to the fixed tooth plate 311, and a movable tooth plate 312 for supporting the fixed tooth plate 311. A support unit 313, and a moving unit 314 that can be driven by a power source to drive the movable tooth plate 312 to move back and forth.

When the movable tooth plate 312 moves relative to the fixed tooth plate 311, it can drive each workpiece 21 to move relative to the fixed tooth plate 311, so that the workpiece 21 is matched by the fixed tooth plate 311 and the movable tooth plate 312. The thread is formed by rubbing, and then becomes the double tooth screw 22 as shown in FIG. 2 .

Wherein, in the technical field of tooth rolling machines, the power source used to drive the mobile unit 314 and various components, such as a motor, and the transmission components and mechanisms used to transmit power, such as gears, transmission belts and linkages etc., are common knowledge, so the description is omitted.

Referring to Figures 3, 5 and 6, Figure 3 mainly shows the overall relative position of the feeding device 32 in this embodiment, as for the main part of the feeding device 32, please refer to Figures 5 and 6.

The feeding device 32 includes a base unit 4 , a guide unit 5 disposed on the base unit 4 , and a feeding unit 6 installed behind the base unit 4 .

Referring to Figures 6 to 8, the seat unit 4 includes a first plate 41 extending upright and facing front and rear, a second plate 42 in front of the first plate 41, and a second plate 42 facing forward from top to bottom. The first plate 41 extends obliquely and integrally connects the inclined plate 43 of the first plate 41 , a trough set 44 installed on the top of the inclined plate 43 , and a trough set 44 installed on the top of the inclined plate 41 . The adjustment group 45.

The first plate 41 includes a horizontal plate portion 411 whose longitudinal direction is in the same direction as the left-right direction, and a first extending plate portion 412 extending downward from the left side of the horizontal plate portion 411 .

The horizontal plate portion 411 is formed with two plate holes 413 above the first extending plate portion 412 . The plate holes 413 are spaced left and right from each other and have the same height. In addition, since the plate holes 413 are used to match the feeding device 33 , the purpose of the plate holes 413 will be described later.

The first extension plate portion 412 includes a first left plate edge 414 and a first right plate edge 415 that are opposite to each other and extend vertically upright, and a first left plate edge 414 that extends downward from the first right plate edge 415 A first slanted edge 416 extending obliquely, and a first bottom edge 417 extending downward from left to right and connected to the bottom of the first left edge 414 and the bottom of the first slanted edge 416 . The length extending up and down of the first right side 415 is shorter than that of the first left side 414 .

The second plate 42 includes an assembling plate portion 421 at the top for assembling the trough set 44 , and a second extending plate portion 422 extending downward from the assembling plate portion 421 .

The second extension plate portion 422 is spaced in front of the first extension plate portion 412 , and cooperates with the first extension plate portion 412 to define a space between the first plate member 41 and the second plate member 42 . Mezzanine space S1 (see Figure 8). The shape of the second extended plate portion 422 matches the first extended plate portion 412. Specifically, the second extended plate portion 422 includes a second left plate edge 423 and a second right plate edge 423 that are opposite to each other and extend vertically upright. Edge 424, a second slanted plate edge 425 extending downward from the second right plate edge 424 to the second left plate edge 423, and a bottom connected to the second left plate edge 423 from left to right end and the second bottom edge 426 at the bottom end of the second inclined edge 425 . The vertical extension of the second right side 424 is shorter than that of the second left side 423 .

The interlayer thickness of the interlayer space S1 is equivalent to the diameter of each of the workpieces 21 (see FIG. 8 ), so only one of the workpieces 21 can be accommodated at the same level. The interlayer space S1 includes an entrance area S11 located above, and an exit area S12 located below the entrance area S11 and close to the fixed tooth plate 311 .

The entrance area S11 is roughly defined by the cooperation between the top end of the horizontal plate portion 411 of the first plate member 41 and the top end of the second extending plate portion 422 of the second plate member 42 . The outlet area S12 is roughly defined by the first slanted edge 416 of the first plate 41 and the second slanted edge 425 of the second plate 42 .

The front end of the inclined plate 43 of the seat unit 4 is integrally connected with the top end of the horizontal plate portion 411 of the first plate 41 , and forms a square through hole 431 penetrating up and down. The through hole 431 is used to cooperate with the feeding unit 6 , which will be described later.

The trough set 44 includes two side plates 441 extending upward from the left and right sides of the inclined plate 43, a partition plate 442 located between the side plates 441 and facing the side plates 441, a piece extending left and right. A front panel 443 assembled at the front end of the side panels 441, and a front panel 444 assembled at the rear end of the front panel 443.

The side panels 441 , the front panel 443 , the front panel 444 cooperate with the inclined panel 43 to define an accommodating space S2 suitable for accommodating the workpieces 21 .

The partition member 442 is used to partition the receiving space S2 into a feeding trough S21 suitable for receiving the workpieces 21 .

The left-right width of the front plate 444 is slightly smaller than the left-right width of the front plate 443, and the bottom end of the front plate 444 protrudes downward from the front plate 443 for the assembly of the second plate 42. The board part 421 is assembled. The bottom end of the front plate 444 and the front end of the inclined plate 43 are spaced up and down to define a gap space S3 (see FIG. 8 ) that communicates the accommodating space S2 and the entrance area S11 of the interlayer space S1.

The crevice space S3 extends left and right in the longitudinal direction (see Figure 7), and the thickness of the crevice space S3 is equivalent to the diameter of each workpiece 21 (see Figure 8), so the crevice space S3 can only accommodate it at one time. One of said workpieces 21 passes. Wherein, the gap thickness of the gap space S3 can be changed by adjusting the different heights of the front plate 444 fixed on the front plate 443 .

The adjusting group 45 is used to adjust the position of the partition member 442 to change the width of the feeding trough S21. For example, the position of the partition member 442 can be adjusted first to increase the width of the feeding chute S21, which is beneficial to putting the workpiece 21 into the middle of the feeding trough S21, and then adjust the position of the partition member 442 to make the feeding trough S21 easier. The width of the trough S21 is adapted to the workpieces 21, which can ensure that the workpieces 21 will not swing in the direction of the trough S21. Since the structure of the adjustment group 45 is common knowledge, further description is omitted here.

The guide unit 5 includes a first guide 51 and a second guide 52 located between the first plate 41 and the second plate 42 in the interlayer space S1 and spaced left and right from each other.

The first guide member 51 is a bolt, and is inserted on the first extension plate portion 412 of the first plate member 41, is located on the left side of the first right plate edge 415, and is located on the first inclined plate edge 416. and above the exit area S12.

The second guide 52 includes an upright segment 521 extending downward from the horizontal plate portion 411 of the first plate 41 to the first extending plate portion 412 , and an upright segment 521 integrally extending downward from the upright segment 521 toward the The outlet region S12 has a curved section 522 extending in a curved manner.

The height of the top of the curved section 522 is equivalent to the height of the first guide member 51 , and most of the rest are located obliquely below the first guide member 51 (see FIG. 7 ). The curved section 522 extends in an arc with the first guide member 51 as a center. The end of the bent section 522 is spaced apart from the first slanted edge 416 of the first plate 41 and the second slanted edge 425 of the second plate 42 , and has a distance from the outlet area S12 .

6, 8, 9, the feeding unit 6 includes a moving plate 61 located on the inclined plate 43, and a drive mechanism 62 capable of driving the moving plate 61 to move back and forth relative to the inclined plate 43 .

6, 8, 9, the drive mechanism 62 includes a drive motor 622 fixedly installed below the inclined plate 43 and having a drive shaft 621, a cam 623 for the eccentric insertion of the drive shaft 621, a fixed An arm seat set 624 installed below the inclined plate 43, a push arm set 625 which is arranged on the arm seat set 624 and whose front end is assembled with the moving plate 61, and a set of push arm sets 625 which are connected to the rear end of the push arm set 625 portion and abut against the cam 623 to be driven by the cam 623 driven wheel set 626 . The front end of the push arm set 625 passes through the through hole 431 of the inclined plate 43 to assemble and connect to the moving plate 61 .

When the drive mechanism 62 is in operation, the drive shaft 621 of the drive motor 622 drives the cam 623 to rotate, and when the cam 623 rotates, it can push the passive wheel set 626 backward and upward, and drive the push arm set 625 to drive the The moving plate 61 moves rearward and upward along the inclined plate 43 . As the cam 623 rotates, when the cam 623 does not push the passive wheel set 626 upward and backward, the moving plate 61 and the push arm set 625 will slide forward and downward under the action of gravity to reset. In this embodiment, the cam 623 is a round wheel eccentrically threaded on the drive shaft 621 , and in practice, the outer wheel surface may further form a protrusion for pushing the driven wheel set 626 .

Referring to FIGS. 6 to 8 , when the feeding device 32 is in operation, the workpieces 21 are put into the feeding trough S21 in a transversely extending manner. At this time, under the drive of the driving mechanism 62, the moving plate 61 can move back and forth parallel to the inclined plate 43 relative to the inclined plate 43, so that it can be disturbed or loosened in the feeding trough S21 The workpieces 21 are convenient for the workpieces 21 to move toward the interlayer space S3 and pass through the interlayer space S3, thereby slipping into the interlayer space S1 from the entrance area S11 of the interlayer space S1.

Wherein, since the workpieces 21 are placed in the feeding trough S21 in a transversely extending manner, and the gap thickness of the gap space S3 and the layer thickness of the layer space S1 are equivalent to the diameter of each of the workpieces 21 Therefore, the workpieces 21 will enter the interlayer space S1 in a lateral extension manner in which the extending direction is the same as the left and right directions (as shown by the two workpieces 21 located in front of the horizontal plate portion 411 in FIG. 7 ).

After each workpiece 21 enters the interlayer space S1, it will move downward under the action of gravity, specifically falling down. During the downward movement of each of the workpieces 21 , one end will touch the first guide 51 first, and be blocked and limited by the first guide 51 , so that it cannot continue to move downward temporarily. At this time, the other end of each workpiece 21 will continue to move down until it touches the curved section 522 of the second guide member 52 , and moves along the direction in which the curved section 522 extends in an arc. (as shown in Figure 7 abutting against one of the workpieces 21 between the first guide 51 and the second guide 52)

In this way, one end and the other end of each workpiece 21 will be respectively limited by the first guide member 51 and guided by the curved section 522 of the second guide member 52, and can be shown in FIG. 7 As shown in Fig. 7, the direction is gradually changed by pivoting, and under the action of the pivoting inertia, it changes into a straight extension, and leaves and falls out from the exit area S12. As shown in FIG. side support.

Based on the above, the first guide 51 and the second guide 52 of the guide unit 5 of the feeding device 32 can cooperate to change the swing direction of the workpiece 21, so that the workpiece 21 can be moved from horizontal to horizontal. The extension is transformed into an inclined extension up and down, and the feeding unit 6 of the feeding device 32 can send the workpiece 21 into the interlayer space S1.

Referring to FIGS. 10 to 12 , the feeding device 33 and the pushing device 34 will be described next. In order to facilitate the reader's understanding, in Figures 11, 12 and subsequent drawings, the feeding device 33 and the pushing device 34 will be turned upright as the case may be, but the reader should note that the feeding device 33 and the pushing device 34 and The relative relationship of other components in this embodiment is actually shown in FIG. 10 . Wherein, FIG. 10 mainly shows the relative positional relationship between the feeding device 33 and the pushing device 34 relative to the first plate 41 and the inclined plate 43 of the feeding device 32 .

The feeding device 33 includes a fixed base unit 71, a first drive unit 72 arranged on one side of the base unit 71 that can move back and forth relative to the base unit 71, and a first drive unit 72 assembled on the first drive unit. The first support unit 73 at the front end of the unit 72, a second drive unit 74 that is slidably embedded on the top side of the base unit 71 relative to the base unit 71, and a front drive unit 74 assembled at the front end of the second drive unit 74. The second supporting unit 75 , and a pivoting unit 76 pivotally arranged on the base unit 71 and connected between the first driving unit 72 and the second driving unit 74 .

Referring to Figures 11, 13, and 16, the base unit 71 is formed with a rail groove 711 that is concave downward from the top and extends longitudinally through the front and back, and a rail groove 711 that is located below the rail groove 711 and extends from the rear end surface of the base unit 71. The accommodating groove 712 protruding from the front, a communication opening 713 that passes through up and down and communicates between the rail groove 711 and the accommodating groove 712, and two openings formed on the base unit 71 facing the first driving unit 72 The groove 714 on the side. The grooves 714 are spaced up and down, and each of the grooves 714 extends through the longitudinal direction. The base unit 71 further includes two rails 715 extending forward and backward and respectively disposed in the grooves 714 .

11, 12, 14, the first drive unit 72 includes a piece that can be driven by the power source and transmission elements (such as a push rod group 91) of this embodiment to move back and forth relative to the base unit 71. The moving base 721, two rails 715 that are slidably embedded in the base unit 71 and fixed on the sliding block 722 on the side of the moving base 721 facing the base unit 71 (see Fig. 16 ), and spaced from each other back and forth A first seat set 723 and a push seat set 724 are disposed on the top of the moving seat 721 .

The moving base 721 includes a base portion 725 roughly in the shape of an upright plate, and a protrusion portion 726 protruding forward from the base portion 725 . The protruding seat portion 726 is formed with a U-shaped notch 727 with an upward opening, and is used for assembling a pushing plate 341 of the pushing device 34 of this embodiment, which will be described later.

The first seat set 723 is fixed in front of the top of the seat portion 725 of the moving base 721 , and is linked with the moving base 721 . The first supporting unit 723 is used to support the first supporting unit 73 at a predetermined position, and is used to drive the first supporting unit 73 to move together when the moving base 721 moves back and forth. Since the first bearing group 723 only needs to support the first supporting unit 73 at a predetermined position, and drive the first supporting unit 73 when the moving base 721 moves, its specific structure can have various changes and is not limited to the drawings. shown.

The pushing seat set 724 is fixed on the top of the seat portion 725 and is spaced behind the first support set 723 for pushing the pivoting unit 76 of the feeding device 33 . Since the push seat set 724 only needs to be able to push the pivot unit 76 , the shape of the push seat set 724 is not limited to the hammer shape shown in the drawing.

Referring to FIGS. 11 , 14 and 15 , the first support unit 73 includes two first support members 731 disposed on the front end of the first seat set 723 spaced left and right. Specifically, the first support members 731 are equally spaced left and right as shown in FIG. 10, so only one of the first support members 731 can be seen in FIG. , the first support members 731 are arranged obliquely.

The front end of each of the first support members 731 gradually becomes thinner from the back to the front and is generally wedge-shaped as shown in FIG. 15 . The rear ends of each of the first support members 731 are screwed and fixed to the front ends of the first support set 723 , and are linked with the first support set 723 . The front end of each of the first support members 731, as shown in FIG. 10 and FIG. The board hole 413 protrudes into the interlayer space S1.

Referring to Fig. 11, Fig. 13 and Fig. 16, the second driving unit 74 includes a rail 741 which is slidably embedded in the rail groove 711 of the base unit 71 and extends longitudinally forward and backward, and a rail 741 which is arranged on the rail 741 The second support group 742 on the top, a reset elastic member 743 arranged in the accommodation groove 712 of the base unit 71, a reset spring member 743 inserted in the communication port 713 of the rail member 741 and the base unit 71 Insert 744 (see FIG. 13 ), and a top brace 744a fixedly inserted in the rearmost of the receiving groove 712 .

The second support group 742 includes a connecting piece 745 assembled in front of the rail 741 and extending left and right to be perpendicular to the rail 741, a connecting piece 746 assembled at the front end of the connecting piece 745, a strip shaped and assembled on the The first stopper 747 at the front end of the connecting member 746, a second stopper 748 spaced in front of the first stopper 747 and fixed on the rear panel of the first plate 41 (see FIG. 15 ) , and a support elastic member 749 whose two opposite ends are respectively inserted into the first limiting member 747 and the second limiting member 748 .

The rail 741 can be driven to reciprocate back and forth in the rail slot 711 of the base unit 71 , and is driven to reciprocate the connecting member 745 and the connecting member 746 back and forth. The connecting member 746 is used for pushing the first limiting member 747 forward toward the second limiting member 748 . The second limiting member 748 cooperates with the first limiting member 747 for assembly of the second supporting unit 75 , for supporting and positioning the second supporting unit 75 . The supporting elastic member 749 is used for supporting and restoring the first limiting member 747 backward.

The return spring 743 is used to be squeezed when the rail 741 is driven to move backward in the rail groove 711 and drives the insert 744 to move backward, so as to store the insert 744 and the rail 741 The elasticity of the front push back. The supporting member 744a is used to prop up the rear end of the reset elastic member 743 and cooperate with the insert 744 to squeeze the reset elastic member 743 .

The second supporting unit 75 includes two second supporting members 751 disposed on the first limiting member 747 of the second support set 742 at intervals from left to right. Specifically, the second support members 751 are spaced left and right at equal heights as shown in FIG. 10 , and are arranged obliquely only because they have been rectified in FIGS. 11 , 13 , and 16 . Each of the second support members 751 is cylindrical, and the front and rear opposite ends are respectively inserted in the first stop member 747 and the second stop member 748, and are located on each of the first support members. 731 , and as shown in FIG. 15 , are located in a respective plate hole 413 , but do not protrude from the first plate 41 and do not protrude into the interlayer space S1 .

11, 12, 17, the central portion of the pivot unit 76 of the feeding device 33 is pivotally connected to the top of the base unit 71, and the pivot unit 76 includes a pusher that abuts against the first drive unit 72. A first end portion 761 at the front end of the seat set 724 and a second end portion 762 fixedly inserted in the rail member 741 of the second driving unit 74 .

Referring to FIGS. 14 and 18 , the pushing device 34 includes a pushing plate 341 disposed on the protrusion 726 of the moving seat 721 of the first driving unit 72 . The ejector plate 341 is positioned on the protrusion 726 through the screw locking element inserted in the protrusion 726 and the notch 727 . Since the way of screw locking is common knowledge, illustration is omitted in the drawings.

The feeding device 33 can be changed between a first state shown in FIGS. 15 and 17 and a second state shown in FIGS. 19 and 20 .

11, 15, 17, when the moving seat 721 of the first drive unit 72 is driven to move forward, it will drive the push seat group 724 and the first support group of the first drive unit 72 723 moves forward, so that the feeding device 33 is converted to the first state shown in FIGS. 15 and 17 .

During the process of the first support group 723 being driven forward by the moving seat 721, the first support members 731 of the first support unit 73 will be driven to pass through the plate holes of the first plate 41 413, protruding from the first plate 41 and protruding into the interlayer space S1. Since the first support members 731 are spaced left and right and have the same height, the first support members 731 protruding into the interlayer space S1 can cooperate to support all horizontally extending supports as shown in FIG. 7 and FIG. 15 . The workpiece 21 does not fall down.

When the push seat group 724 is driven by the moving seat 721 to move forward, it will push the first end 761 of the pivot unit 76 forward, and then the second end 762 of the pivot unit 76 will move forward. Swing back. In this way, the second end 762 of the pivot unit 76 will drive the rail 741 of the second driving unit 74 fixedly connected thereto to move backward.

When the rail 741 moves backward, it will drive the plug-in 744 of the second drive unit 74, and compress the return spring 743 of the second drive unit 74 (see FIG. 13 ), so that the return spring 743 storage elastic. When the rail 741 moves backward, it will also drive the first stopper 747 of the second support group 742 to move backward. The second supporting members 751 of the supporting unit 75 are driven to shrink back, so that the second supporting members 751 do not protrude from the first plate 41 in the first state as shown in FIG. 15 .

When the moving seat 721 of the first driving unit 72 is driven to move backward, it will drive the first bearing group 723 and the pushing seat group 724 of the first driving unit 72 to move backward, and allow the The feeding device 33 switches to this second state as shown in FIGS. 19 and 20 .

Referring to Figures 16, 19, and 20, during the process of the first support group 723 being driven by the moving seat 721 to move backward, it will drive the first support group 723 and the first support unit 73 to move backward, As shown in FIG. 20 , the first support members 731 of the first support unit 73 are retracted into the plate hole 413 , and do not protrude from the first plate 41 in the second state. In this way, the workpiece 21 previously supported by the first supports 731 can fall down and move.

When the first seat set 723 moves backward, the push seat set 724 also moves backward at the same time, instead of pushing the first end 761 of the pivot unit 76 forward. At the same time, the reset elastic member 743 (see FIG. 13 ) of the second drive unit 74 will release the elastic force, thereby pushing the insert 744 of the second drive unit 74 forward together with the rail 741 and driving the second drive unit 74. The first stopper 747 of the two support groups 742 moves forward, and cooperates with the second stopper 748 to compress the top support elastic member 749, and at the same time makes the second supports of the second support unit 75 As shown in Figure 20, the member 751 passes through the plate holes 413 of the first plate 41, protrudes out of the first plate 41 and protrudes into the interlayer space S1, and then can receive the living space of the first plate 41. In the process of transitioning from one state to the second state, the workpiece 21 falls down from the first supports 731 , or passes through the height positions corresponding to the first supports 731 .

Based on the above-mentioned changes in the operation of the first state and the second state: the process of changing the feeding device 33 between the first state and the second state is that the first supports 731 and the second supports 15 and 20 , as shown in FIG. 15 and FIG. 20 , alternately protrude into the interlayer space S1 and alternately support the workpiece 21 and alternately retract into the plate holes 413 of the first plate 41 . By alternately expanding and contracting the first support members 731 and the second support members 751, alternately supporting the workpieces 21, and alternately allowing the workpieces 21 to fall, the workpieces 21 can be moved toward the guide unit 5 in batches. The first guide 51 and the second guide 52 fall (refer to FIG. 7 for illustration). In this way, the number of the workpieces 21 falling into the guide unit 5 at one time can be controlled, thereby reducing the probability of the workpieces 21 being piled up in the interlayer space S1, and also preventing the workpieces 21 from being piled up in the interlayer space. The problem of not being able to change direction smoothly occurs in S1.

In this embodiment, a vertical distance D21 (see FIG. 15 ) between the first support unit 73 and the second support unit 75 is approximately equal to the diameter of each workpiece 21, but it can also be implemented according to the above-mentioned The number of workpieces 21 that need to be dropped at one time is different and adjusted.

Referring to Figures 17 to 19, since the pushing plate 341 of the pushing device 34 is installed on the protrusion 726 of the moving seat 721 of the first drive unit 72, it can be driven by the moving seat 721 to move forward and backward. Therefore, when the feeding device 33 continues to alternate between the first state and the second state, the pushing plate 341 can move back and forth as shown in Figures 17 and 19, so as to place the fixed tooth plate 311 One of the workpieces 21 on the side, as shown in Figure 17, is pushed forward between the fixed tooth plate 311 and the movable tooth plate 312, thereby facilitating the fixing of the fixed tooth plate 311 and the movable tooth plate 312 to the workpiece 21. Thread Rolling.

To sum up, the effect of the new tooth rolling machine is that: the first guide 51 and the second guide 52 of the feeding device 32 are suitable for cooperating to be used to process and form the double tooth screw 22 The workpiece 21 is changed from a horizontal extension to a straight extension, so as to facilitate sending the workpiece 21 into the space between the fixed tooth plate 311 and the movable tooth plate 312 to make threads. The feeding device 33 can be used to control the falling of the workpieces 21 in batches, that is, it can be used to control the quantity of the workpieces 21 dropped at one time.

The above is only an embodiment of the present invention, and cannot limit the patent scope of the present invention with this, and the simple equivalent changes and modifications according to the scope of the patent application of the present invention and the patent specification should also be included in the present invention. covered by the patent application.

21: Workpiece 22: double tooth screw 31: Tooth rubbing device 311: fixed dental plate 312: Movable tooth plate 313: Support unit 314: mobile unit 32: Feeding device 33: Feeding device 34: Pushing device 341: push plate 4: Seat unit 41: The first board 411: horizontal plate 412: the first extension plate part 413: plate hole 414: the first left edge 415: the first right edge 416: The first inclined board edge 417: The first bottom plate edge 42: Second board 421: Assembling the board 422: the second extension plate part 423: The second left edge 424: the second right edge 425: second slant edge 426: Second bottom plate edge 43: Inclined plate 431: through hole 44: Feed trough group 441: side panel 442: Partition 443: front panel 444: front plate 45: Adjustment group 5: guide unit 51: The first guide 52: Second guide 521: upright section 522: Bending section 6: Feeding unit 61: Mobile plate 62: Driving mechanism 621: drive shaft 622: Drive motor 623: cam 624: arm seat group 625: push arm set 626: passive wheel set 71: Base unit 711: rail groove 712: storage tank 713: Connecting port 714: Groove 715: rail 72: The first drive unit 721: mobile seat 722: slider 723: The first support group 724: push seat group 725: seat body 726: Protruding seat 727: notch 73: The first support unit 731: The first support 74: Second drive unit 741: rail parts 742: Second support group 743: Reset spring 744: plug-in 744a: Top brace 745: connector 746: connector 747: The first limit piece 748: The second limit piece 749: top support bomb 75: Second support unit 751: Second support 76: pivot unit 761: first end 762: second end 91: putter group D21: up and down spacing S1: mezzanine space S11: Entrance area S12: Exit area S2: storage space S21: Feeding chute S3: Gap space

Other features and functions of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a perspective view illustrating an existing cap screw and a double thread screw; Fig. 2 is a perspective view illustrating a workpiece that is about to be rubbed into a pair of tooth screws; Fig. 3 is a perspective view illustrating an embodiment of the novel tooth rolling machine; Fig. 4 is a top view illustrating the relative relationship between a fixed tooth plate and a movable tooth plate of a tooth rubbing device of this embodiment; Fig. 5 is a perspective view, mainly illustrates a feeding device of this embodiment; Fig. 6 is a three-dimensional exploded view of an incomplete decomposition, illustrating the feeding device; Fig. 7 is a front view, which mainly illustrates the feeding device, in which a front panel is omitted, and the position of a front panel is hypothetically indicated by a dotted chain line; Fig. 8 is a sectional view, cut through a drive shaft and a driven wheel set of a feeding unit of the feeding device; Fig. 9 is a three-dimensional exploded view illustrating the feeding unit of the feeding device from another angle; Fig. 10 is a perspective view, mainly illustrating the relative relationship between a feeding device of this embodiment and a first plate and an inclined plate of the feeding device; Fig. 11 is a perspective view illustrating the feeding device, wherein the schematic angle of the feeding device is different from Fig. 10 through normalization; Figure 12 is a perspective view illustrating the feeding device, illustrating the feeding device in an orientation different from that of Figure 11; Fig. 13 is a sectional view not completely cut away, illustrating a base unit of the feeding device, a rail member of a second drive unit and a connecting member of a second support group; Figure 14 is a perspective view, mainly illustrating a first driving unit of the feeding device; Fig. 15 is an incomplete and partially cut-away sectional view, illustrating that the feeding device is in a first state; Figure 16 is a perspective view, mainly illustrating the second drive unit of the feeding device; Figure 17 is an incomplete top view, illustrating that the feeding device is in the first state; Fig. 18 is an incomplete perspective view, mainly illustrating a pushing device of this embodiment; Figure 19 is an incomplete top view illustrating that the feeding device is in a second state; and Fig. 20 is an incomplete and partially cut-away sectional view illustrating the feeding device in the second state.

21: Workpiece

32: Feeding device

4: Seat unit

41: The first board

411: horizontal plate

412: the first extension plate part

413: plate hole

414: the first left edge

415: the first right edge

416: The first inclined board edge

417: The first bottom plate edge

42: Second board

421: Assembling the board

422: the second extension plate part

423: The second left edge

424: the second right edge

425: second slant edge

426: Second bottom plate edge

43: Inclined plate

431: through hole

44: Feed trough group

441: side panel

442: Partition

443: front panel

444: front plate

45: Adjustment group

5: guide unit

51: The first guide

52: Second guide

521: upright section

522: Bending section

6: Feeding unit

61: Mobile plate

62: Driving mechanism

622: Drive motor

624: arm seat group

625: push arm set

Claims (12)

A thread rolling machine is suitable for threading several workpieces, and includes: A material feeding device, comprising a base unit defining a sandwich space, and a guide unit installed on the base unit, the sandwich space includes a spacer located above and suitable for each of the workpieces to extend laterally An entrance area that enters downwards, and an exit area located below the entrance area and suitable for leaving each of the workpieces extending up and down, the guide unit includes a first guide piece and a first guide piece spaced left and right in the interlayer space A second guide, the first guide is located above the outlet area, the second guide includes a curved section extending from top to bottom toward the outlet area, the curved section is suitable for use with the first guide Cooperate for each of the workpieces to change direction in such a way that one end abuts against the first guide and the other end moves along the curved section. The tooth rolling machine according to claim 1, wherein, the curved section extends in an arc with the first guide member as the center. The tooth rolling machine according to claim 1, wherein the base unit includes a first plate and a second plate that cooperate with each other to define the interlayer space, and a top-to-bottom facing the first plate The inclined plate extends obliquely and its front end is connected to the top of the first plate, and the inclined plate is suitable for moving the workpieces into the entrance area of the mezzanine space. The tooth rolling machine according to claim 3, wherein the feeding device further includes a feeding unit, and the feeding unit includes a moving plate set on the inclined plate capable of reciprocating movement relative to the inclined plate , and a driving mechanism capable of driving the moving plate to reciprocate relative to the inclined plate, the moving plate is suitable for carrying the workpieces, and driving the workpieces through reciprocating movement, so as to facilitate the movement of the workpieces into the interlayer space . The tooth grinding machine as described in claim 4, wherein the drive mechanism includes a drive motor with a drive shaft, a cam for the drive shaft to be eccentrically inserted, a driven drive that abuts against the cam and can be pushed by the cam A driving wheel set, and a push arm set assembled between the driven wheel set and the moving plate, the pushing arm set can be pushed by the driven wheel set to drive the moving plate to move back and forth. The tooth rolling machine as described in claim 1, wherein the base unit includes a first plate and a second plate that cooperate with each other to define the interlayer space, the tooth rolling machine also includes a feeding device, the The feeding device includes a first support unit inserted in the first plate, and a second support unit inserted in the first plate and located below the first support unit, the first support unit can be driven and protrude forward into the interlayer space to be suitable for supporting the workpieces not to move downwards, and the first supporting unit can also be driven and retracted so as to be suitable for moving the workpieces down to the second Two support units, the second support unit can be driven to protrude forward into the interlayer space to be suitable for supporting the workpieces moving down through the first support unit, the second support unit can also be driven and shrink back to be suitable for making the workpieces move downward toward the first guide and the second guide. The tooth rolling machine according to claim 6, wherein, the first support unit and the second support unit protrude into the interlayer space alternately with each other, and recede alternately with each other. The tooth rubbing machine according to claim 6, wherein the first support unit includes two first support members spaced left and right and equal in height to each other, and these first support members are adapted to support the workpiece extending laterally , the second support unit includes two second support members spaced left and right and equal in height to each other, and the second support members are adapted to cooperate with and support the workpiece extending laterally. The tooth rolling machine according to claim 6, wherein the feeding device further includes a first drive unit and a second drive unit capable of moving back and forth to respectively drive the first support unit and the second support unit to move back and forth, A base unit for the first drive unit and the second drive unit to be relatively movable, and a base unit pivoted on the base unit and connected between the first drive unit and the second drive unit A pivoting unit, the pivoting unit can be driven to pivot when the first driving unit moves back and forth, so that the second driving unit and the first driving unit can move back and forth in opposite directions. The tooth rolling machine as described in claim 9, wherein the first drive unit includes a moving base that can be driven to move back and forth relative to the base unit, and a first support group arranged on the moving base and a push seat group, the first support unit is set for the first support unit, and can drive the first support unit to move back and forth to protrude into the interlayer space or shrink back, and the push seat group can be moved by the first support unit Driven by the moving seat, it moves back and forth back and forth, and pushes or does not push the pivot unit, so that the pivot unit pivots back and forth. The tooth rolling machine according to claim 10, wherein the pivot unit includes a first end portion that can be pushed by the push seat group of the first drive unit, and a second end portion opposite to the first end portion Two ends, the second drive unit includes a rail piece that is slidably embedded in the base unit, a second seat set set on the track piece, and a reset elastic piece set in the base unit , and an insert inserted in the rail so as to be driven by the rail and abut against and compress the return elastic. When pivoting, it is driven by the pivoting unit to move back and forth. The second support unit is provided for the second supporting unit and can drive the second supporting unit to move forward and backward. The reset spring can move forward and backward on the rail. When moving backward, it is compressed by the plug-in to store the elastic force that drives the plug-in and the rail to reset forward. The tooth rolling machine according to claim 11, wherein the second support group includes at least one connecting piece assembled on the rail, a first limiting piece assembled on at least one connecting piece, a a second limiting member fixed on the first plate and spaced in front of the first limiting member, and a top supporting spring between the front and rear of the first limiting member and the second limiting member The first limiting member is provided for the second supporting unit, and can be pushed by at least one connecting member to move toward the second limiting member when the rail member drives at least one connecting member to move forward. The supporting elastic part is close to and compresses the top supporting elastic part, so that the second support unit protrudes forward into the interlayer space, and the supporting elastic part can provide the first limiting part to face the second limiting part backward. The elastic force of the support makes the second supporting unit retracted by the first limiting member.

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