Adjustment device of thread rolling machine

Abstract

To provide an adjustment device of a thread rolling machine capable of precisely adjusting a thread-rolling distance of a thread rolling machine with a small labor.SOLUTION: A transmission device of a thread rolling machine connected to an adjustment device 4 includes an eccentric wheel 332 and a transmission shaft 333. The adjustment device 4 includes a drive unit 42 and a worm shaft unit 43. The worm shaft unit 43 includes an adjustment worm shaft 431 meshed with the drive unit 42 and an adjustment member 433 disposed on the adjustment worm shaft 431. The drive unit 42 includes a first drive member 421 disposed on a first end 333A of the transmission shaft 333 and a positioning portion 422 disposed on the first drive member 421. The center of the positioning portion 422 is eccentric from a center of the first drive member 421. The adjustment worm shaft 431 is rotated with rotation of the adjustment member 433. The drive unit 42 is rotated to change the position of the positioning portion 422, thereby adjusting a thread-rolling distance of the thread rolling machine.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to an adjustment device for a rolling machine. [Background technology]

[0002] As shown in Figures 1, 1A and 2, a known rolling machine 1 includes a base 11, a supply rail 12 and a transmission device 13 respectively installed on the base 11, a rolling device 14 linked to the transmission device 13, and an adjustment unit 15 installed on the transmission device 13.

[0003] The transmission device 13 has a transmission wheel 131 installed on the base 11, an eccentric wheel 132 interlocked with the transmission wheel 131, and a transmission rod 133 interlocked with the eccentric wheel 132. The transmission rod 133 has a first end 133A connected to the eccentric wheel 132, a second end 133B connected to the rolling device 14, and a hole H1 drilled in the first end 133A.

[0004] The adjustment unit 15 has a first adjustment member 151 installed at the first end 133A, a second adjustment member 152 installed on one side of the first end 133A and fixed to the first adjustment member 151, a hole 153 formed in the first adjustment member 151, and a third adjustment member 154 engaging with the second adjustment member 152. The center of the hole 153 is eccentric from the center of the first adjustment member 151, so that when the eccentric wheel 132 is inserted into the hole 153 and interlocked with the first adjustment member 151, the eccentric wheel 132 is eccentrically installed. The rolling device 14 also includes a first die plate 141 installed on the base 11 and a second die plate 142 corresponding to the first die plate 141 and connected to the second end 133B of the transmission rod 133.

[0005] In the known rolling machine 1, when performing rolling operations, the supply rail 12 transports a plurality of workpieces 2, while the transmission wheel 131 rotates the eccentric wheel 132 in conjunction with the workpieces 2, and the eccentric wheel 132 moves the transmission rod 133 back and forth in conjunction with the workpieces 2. Furthermore, the second die plate 142 slides relatively along the first die plate 141, and as a result, each workpiece 2 is formed with multiple threads (not shown) due to the rolling effect of the second die plate 142 and the first die plate 141, thus completing the rolling operation.

[0006] As shown in Figures 1, 2 and 3, before the rolling machine 1 performs the rolling operation, the rolling distance of the rolling machine 1 must be adjusted based on the size of the multiple workpieces 2, so that the rolling process of the multiple workpieces 2 can be performed accurately. When adjusting the rolling distance, first, rotating the third adjusting member 154 rotates the second adjusting member 152, and simultaneously the first adjusting member 151 is rotated by the second adjusting member 152, allowing the position of the hole 153 to be changed. This allows the distance D1 between the second die plate 142 and the hole 153 to be adjusted. When the distance D1 is increased, the rolling distance becomes relatively shorter, thereby shortening the rolling time of the first and second die plates 141, 142 for multiple workpieces 2. Conversely, when the distance D1 is decreased, the rolling distance becomes relatively longer, thereby increasing the rolling time of the first and second die plates 141, 142 for multiple workpieces 2, allowing for appropriate rolling for different workpieces 2.

[0007] However, the outer diameter of the third adjustment member 154 is often smaller than the outer diameter of the second adjustment member 152. Therefore, a large force must be applied to the third adjustment member 154, and it takes time and effort for the third adjustment member 154 to rotate the second adjustment member 152 to achieve the adjustment effect, which is not only time-consuming but also inconvenient to operate. Furthermore, the third adjustment member 154 and the second adjustment member 152 are engaged with a plurality of teeth 155, but if the size of the teeth 155 provided on the third adjustment member 154 is smaller than the size of the teeth 155 provided on the second adjustment member 152, the strength of the teeth 155 of the third adjustment member 154 is likely to be insufficient, and not only will it be impossible to drive and rotate the second adjustment member 152, but it may also be damaged by excessive force. If the size of the plurality of teeth 155 is increased in order to increase the strength of the teeth 155 of the third adjustment member 154, the outer diameter of the third adjustment member 154 will be too small to provide a sufficient number of teeth 155, and if the size of the plurality of teeth 155 is increased, it will be difficult to fine-tune the distance D1, and improvement is required. Summary of the Invention [Problem to be solved by the invention]

[0008] The problem to be solved by the present invention is to provide an adjusting device for a rolling machine that can adjust the rolling distance of the rolling machine accurately and with little effort. [Means for solving the problem]

[0009] The present invention relates to an adjusting device for a rolling machine, the adjusting device being installed on the rolling machine, the rolling machine including a base, a feed rail and a transmission device respectively installed on the base, and a rolling device moved by the transmission device, the adjusting device being connected to the transmission device, the transmission device including a transmission wheel installed on the base, an eccentric wheel connected to the transmission wheel, and a transmission rod connected to the eccentric wheel, the transmission rod having a first end with a perforation formed therein and a second end opposite to the first end, the rolling device including a first die plate installed on the base, and a second die plate corresponding to the first die plate and connected to the second end of the transmission rod. The adjusting device includes a housing installed at a first end of the transmission rod, a drive unit installed at the first end of the transmission rod, and a worm rod unit installed on the housing and used to adjust the rotational operation of the drive unit, the worm rod unit having an adjusting worm rod installed on the housing and engaging with the drive unit, teeth formed on the outer circumferential surface of the adjusting worm rod, and an adjusting member installed at one end of the adjusting worm rod and rotating, the rotational operation of the adjusting member rotates the adjusting worm rod, the drive unit includes a first driving member installed at the first end of the transmission rod, the center of the positioning part is eccentric to the center of the first driving member, the eccentric wheel is eccentrically installed, and the positioning part is inserted into a hole drilled in the first end of the transmission rod; and the adjusting member is rotated to rotate the adjusting worm rod, which rotates the drive unit, thereby changing the position of the positioning part and adjusting the distance between the second die plate and the positioning part, and further adjusting the rolling distance of the rolling machine. [Effects of the Invention]

[0010] According to the present invention, the adjustment member rotates the adjustment worm rod, which in turn rotates the drive unit in conjunction with the rotation, making it easier to change the position of the positioning part, allowing the distance between the second die plate and the positioning part to be easily and accurately adjusted, and the rolling distance of the rolling machine is also adjusted accordingly, making it easier to process workpieces of different sizes. In addition, the coordination of the adjusting worm rod and the adjusting member makes it easier to perform slight rotations of the drive unit, which not only allows for more precise and accurate adjustment of the rolling distance, but also reduces the labor required for the adjustment work described above. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a known rolling machine. [Figure 1A] FIG. 2 is an enlarged view of part 1A of FIG. [Figure 2] FIG. 1 is an exploded perspective view of a main part of a known rolling machine. [Figure 3] FIG. 1 is a side view of a known rolling machine. [Figure 4] 1 is a perspective view of a rolling machine showing a first embodiment of the present invention. FIG. [Figure 4A] FIG. 4 is an enlarged view of part 4A in FIG. [Figure 5] 1 is an exploded perspective view of a main part of a rolling machine showing a first embodiment of the present invention. FIG. [Figure 6] 1 is a side view of a rolling machine in a rolling distance extension adjustment state, showing a first embodiment of the present invention. FIG. [Figure 7] 1 is a side view of a rolling machine in a rolling distance shortening adjustment state, showing a first embodiment of the present invention. FIG. [Figure 8] FIG. 10 is an exploded perspective view of a rolling machine showing a second embodiment of the present invention. [Figure 9] FIG. 10 is a side view of a rolling machine in a rolling distance extension adjustment state, showing a second embodiment of the present invention. [Figure 10] FIG. 10 is a side view of a rolling machine in a rolling distance shortening adjustment state, showing a second embodiment of the present invention. [Figure 11] FIG. 10 is a cross-sectional view of a main part of a rolling machine showing a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0013] (First embodiment) 4 to 7 show a first embodiment of the present invention. In the adjusting device 4 of the rolling disk 3 of this embodiment, the adjusting device 4 is installed on the rolling disk 3. The rolling machine 3 includes a base 31, a supply rail 32 installed on the base 31 and used to transport a plurality of workpieces 5, a transmission device 33 installed on the base 31 and corresponding to the supply rail 32, and a rolling device 34 connected to and driven by the transmission device 33. The adjustment device 4 is connected to the transmission device 33.

[0014] The transmission device 33 has a transmission wheel 331 installed on the base 31 , an eccentric wheel 332 interlocked with the transmission wheel 331 , and a transmission rod 333 interlocked with the eccentric wheel 332 . The transmission rod 333 has a first end 333A connected to the eccentric wheel 332, a hole H2 formed in the first end 333A, and a second end 333B connected to the rolling device 34. The first end 333A and the second end 333B are opposite ends of the transmission rod 333.

[0015] The rolling device 34 has a first die plate 341 installed on the base 31 and a second die plate 342 installed opposite the first die plate 341 . The second die plate 342 is connected to the second end 333B of the transmission rod 333, and is moved by the transmission rod 333 to slide reciprocally along the first die plate 341.

[0016] As shown in Figures 4A and 5, the adjustment device 4 includes a housing 41 installed at the first end 333A of the transmission rod 333, a drive unit 42 installed at the first end 333A of the transmission rod 333, and a worm rod unit 43 installed in the housing 41 and corresponding to the drive unit 42, and rotates the drive unit 42 via the worm rod unit 43. The worm rod unit 43 includes an adjusting worm rod 431 mounted on the housing 41 and engaging with the drive unit 42, teeth 432 formed on the outer circumferential surface of the adjusting worm rod 431, and an adjusting member 433 extending outward from one end of the adjusting worm rod 431. The adjusting member 433 rotates, and an adjusting member 433 can be installed on either end of the adjusting worm rod 431 as needed. The adjusting member 433 is used to control the rotation of the adjusting worm rod 431.

[0017] The drive unit 42 has a first drive member 421 installed at the first end 333A of the transmission rod 333, a positioning portion 422 molded on the first drive member 421 and engaged with the eccentric wheel 332, a second drive member 423 installed on the first end 333A side of the transmission rod 333 and facing the first drive member 421, and an interlocking portion 424 molded on the outer peripheral edge of the second drive member 423 and engaging with the tooth portion 432. In addition, in this embodiment, the first driving member 421 and the second driving member 423 are described as being fixed to each other by a plurality of fixing members 61. That is, the plurality of fixing members 61 are passed through the second driving member 423 and fixed to the first driving member 421, and the second driving member 423 is pressed against the plurality of fixing members 61 to limit its position. In this way, the second driving member 423 and the first driving member 421 are fixed to each other.

[0018] Since the center of the positioning part 422 is offset from the center of the first driving member 421, the eccentric wheel 332 is eccentrically installed, and the positioning part 422 is inserted into a hole H2 drilled in the first end 333A. Thus, the first driving member 421 is rotated by the worm rod unit 43, and the distance D2 between the second die plate 342 and the positioning part 422 is adjusted. In this embodiment, a bearing 44 is installed between the positioning part 422 and the eccentric wheel 332 to prevent inappropriate wear between the eccentric wheel 332 and the positioning part 422. The following description will be given assuming that the bearing 44 is installed.

[0019] As shown in Figures 5, 6 and 7, before the rolling machine 3 performs the rolling operation, first, the distance D2 between the second die plate 342 and the positioning portion 422 is adjusted according to the size of the workpiece 5 to be processed, thereby adjusting the rolling distance of the rolling machine 3. The above-mentioned rolling distance refers to the length of each workpiece 5 rolled by the first and second die plates 341 and 342.

[0020] Regarding the first and second driving members 421, 423 being fixed to each other by the plurality of fixing members 61, in order to fix the transmission rod 333 between the first and second driving members 421, 423, adjustment can be easily performed by first slightly loosening the plurality of fixing members 61. That is, when the plurality of fixing members 61 are slightly loosened to adjust and lengthen or shorten the rolling distance, the plurality of fixing members 61 remain fixed on the first driving member 421, and at the same time, the second driving member 423 is not pressed by the plurality of fixing members 61, and the first and second driving members 421, 423 are not pressed on both sides of the transmission rod 333, so the first and second driving members 421, 423 can rotate.

[0021] When the adjusting member 433 rotates and the adjusting worm rod 431 is driven to rotate, the tooth portion 432 and the interlocking portion 424 are meshed with each other, so that the adjusting worm rod 431 further rotates the second driving member 423 in conjunction with the tooth portion 432 and the interlocking portion 424 . The rotating second driving member 423 pushes multiple fixed members 61 to rotate the first driving member 421 in conjunction with the first driving member 421, thereby changing the position of the positioning portion 422 in the drilling hole H2, adjusting the distance D2 between the second die plate 342 and the positioning portion 422, and changing the rolling distance of the rolling disk 3.

[0022] When the distance D2 is shortened, the rolling distance becomes relatively longer, and the rolling time of multiple workpieces 5 on the first and second die plates 341, 342 is extended, making it suitable for rolling workpieces 5 with larger outer diameters. Conversely, when the distance D2 is increased, the rolling distance becomes relatively shorter, the rolling time for multiple workpieces 5 by the first and second die plates 341, 342 becomes shorter, and this is suitable for rolling workpieces 5 with small outer diameters.

[0023] Therefore, by rotating the adjustment member 433, the drive unit 42 and the worm rod unit 43 operate correspondingly, making the adjustment of the rolling distance simpler and easier, and the adjustment worm rod 431 and the tooth portion 432 can effectively withstand the forces generated during the adjustment work. At the same time, the first and second drive members 421 and 423 can also be slightly driven and rotated, allowing for small and accurate adjustments of the distance D2 and the rolling distance.

[0024] After the above-mentioned adjustment work is completed, simply tighten the fixing members 61, and the first driving member 421 and the second driving member 423 are tightly fixed by the fixing members 61. Furthermore, by tightening the transmission rod 333 between the first driving member 421 and the second driving member 423, the first driving member 421 and the second driving member 423 cannot rotate. Thereafter, the eccentric wheel 332 is rotated via the transmission wheel 331, and the transmission rod 333 is linked to operate the reciprocating movement in the forward and backward directions, and the second die plate 342 slides along the first die plate 341 via the transmission rod 333, and each workpiece 5 is supplied between the first and second die plates 341, 342 via the supply rail 32, and multiple threads (not shown in the figure) are rolled, thus completing the rolling operation.

[0025] Second Embodiment 8, 9 and 10 show a second embodiment of the present invention. Description of components, purposes, and effects common to the first embodiment will be omitted.

[0026] This embodiment differs from the first embodiment in the following points: The interlocking portion 424 is installed on the outer peripheral edge of the first driving member 421, and the adjusting worm rod 431 is installed inside the housing 41, and the tooth portion 432 formed on the adjusting worm rod 431 and the interlocking portion 424 formed on the first driving member 421 are mutually meshed.

[0027] When the multiple fixing members 61 are slightly loosened, the first and second driving members 421, 423 can rotate, and the adjusting worm rod 431 is rotated in tandem by the adjusting member 433, so that the first driving member 421 rotates, the positioning portion 422 moves and changes its position, and the distance D2 between the positioning portion 422 and the second die plate 342 is adjusted. This allows for accurate adjustment of the rolling distance of the rolling disk 3. Furthermore, since the worm rod unit 43 can directly interlock with the first driving member 421, the interlocking first driving member 421 can be rotated in conjunction with the worm rod unit 43 without the need for the second driving member 423, which further effectively simplifies the adjustment work.

[0028] (Third embodiment) FIG. 11 shows a third embodiment of the present invention. The third embodiment is similar to the first embodiment, so only the differences will be mainly described.

[0029] Differences from the first embodiment include: At least one connecting member 62 is provided between the first driving member 421 and the second driving member 423, so that the first driving member 421 and the second driving member 423 connected by the connecting member 62 can rotate simultaneously. In this embodiment, the connecting member 62 is a rivet.

[0030] When the multiple fixing members 61 are slightly loosened and the first and second driving members 421, 423 are rotatable, the adjusting worm rod 431 is rotated by the adjusting member 433 (not shown in Figure 11), and at that time, the second driving member 423 is linked to the adjusting worm rod 431 and rotates correspondingly. Since the first driving member 421 and the second driving member 423 are connected by the connecting member 62, the first driving member 421 is driven by the second driving member 423, and rotates the first driving member 421 and the second driving member 423 simultaneously and without delay. Furthermore, since the first driving member 421 and the second driving member 423 are linked by the connecting member 62, there is no need for multiple fixing members 61 to be linked, and excessive accuracy is not required for the size of the holes for the multiple fixing members 61 formed in the second driving member 423. This saves time and labor in manufacturing the second driving member 423, and also reduces costs.

[0031] As described above, the adjustment device of the rolling machine of the present invention operates between the worm rod unit and the drive unit, rotating the adjustment member to rotate the adjustment worm rod, and simultaneously rotating the drive unit in conjunction with the rotation of the adjustment member to change the position of the positioning part and adjust the distance between the second die plate and the positioning part. This allows the rolling distance of the rolling machine to be adjusted quickly, easily, and accurately, making it easier to process workpieces of different sizes.

[0032] The above describes the best mode for carrying out the present invention, and the scope of the present invention is not limited thereto. All changes and modifications that do not deviate from the scope of the claims are included within the scope of the present invention. [Explanation of symbols]

[0033] 1 Rolling machine 11 Foundation 12 Supply Rail 13 Transmission 131 Transmission Wheel 132 Eccentric wheel 133 Transmission rod 133A First end 133B Second end H1 perforation 14 Rolling equipment 141 First Die Plate 142 Second Die Plate 15 Adjustment unit 151 First adjustment member 152 Second adjustment member 153 holes 154 Third adjustment member 155 teeth 2. Processing object 3 Rolling machine 31 Foundation 32 Supply Rail 33 Transmission 331 Transmission Wheel 332 eccentric wheel 333 Transmission rod 333A First end 333B Second end 34 Rolling equipment 341 First Die Plate 342 Second Die Plate H2 perforation 4 Adjustment device 41 Case 42 Drive unit 421 First driving member 422 Stereotaxic part 423 Second driving member 424 Interlocking part 43 Worm rod unit 431 Adjustable worm rod 432 Tooth 433 Adjustment parts 44 bearings 5. Processing object 61 Fixing member 62 Connecting member

Claims

1. In the adjustment device for the rolling machine, the adjusting device is installed on the rolling machine, the rolling machine includes a base, a supply rail and a transmission device installed on the base, and a rolling device moved by the transmission device, the adjusting device is connected to the transmission device; the transmission device includes a transmission wheel installed on the base, an eccentric wheel interlocked with the transmission wheel, and a transmission rod interlocked with the eccentric wheel, the transmission rod having a first end with a perforation formed therein and a second end opposite to the first end; the rolling device includes a first die plate installed on the base, and a second die plate corresponding to the first die plate and connected to the second end of the transmission rod; The adjusting device includes a housing installed at a first end of the transmission rod, a drive unit installed at the first end of the transmission rod, and a worm rod unit installed at the housing and used to adjust the rotational operation of the drive unit, the worm rod unit having an adjusting worm rod installed on the housing and engaging with the drive unit, teeth formed on the outer circumferential surface of the adjusting worm rod, and an adjusting member installed at one end of the adjusting worm rod and rotating, the rotational operation of the adjusting member rotates the adjusting worm rod, the drive unit includes a first driving member installed at the first end of the transmission rod, a gear formed on the first driving member and engaged with the eccentric wheel, a positioning part for adjusting the second die plate and the positioning part for adjusting the second die plate; a second driving part installed on one side of the first end of the transmission rod and fixed to the first driving part; and an interlocking part for engaging with the toothed part, the center of the positioning part is eccentric to the center of the first driving part, the eccentric wheel is eccentrically installed, the positioning part is inserted into a hole drilled in the first end of the transmission rod, the adjustment part rotates to rotate the adjusting worm rod and the drive unit, and the rotation of the adjusting worm rod and the rotation of the drive unit changes the position of the positioning part and adjusts the distance between the second die plate and the positioning part, and further adjusts the rolling distance of the rolling machine.

2. The adjusting device for a rolling machine according to claim 1 , wherein the interlocking portion is disposed on the outer peripheral edge of the second driving member.

3. The adjusting device for a rolling machine according to claim 1 , wherein the interlocking portion is disposed on the outer peripheral edge of the first driving member.

4. 2. The adjusting device for a rolling machine according to claim 1, wherein a bearing is installed between the positioning part and the eccentric wheel.

5. 2. The adjusting device for a rolling machine according to claim 1, wherein the first driving member and the second driving member are fastened together by a plurality of fixing members.

6. 2. The adjusting device for a rolling machine according to claim 1, wherein at least one connecting member is installed between the first driving member and the second driving member, and the first driving member and the second driving member rotate simultaneously.

7. 7. The adjusting device for a rolling machine according to claim 6, wherein the connecting members are rivets.

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