Screw thread rolling machine with distance sensing function

Abstract

The invention discloses a screw thread rolling machine with a distance sensing function, which comprises a movable seat and a fixed seat, the fixed seat and the movable seat are correspondingly arranged at an interval, and the fixed seat is provided with a body, an adjusting block arranged on the side edge of the body and an adjusting piece for adjusting the distance between the adjusting block and the body. The device is mainly characterized in that a distance sensing piece and a processing module connected with the distance sensing pieces are additionally arranged on the two sides of the body respectively, the distance sensing pieces sense the distance change between the adjusting block and the body in a non-contact mode and output the distance change, and the distance between the adjusting block and the body is judged in cooperation with the processing module, so that the distance between the adjusting block and the body is adjusted. And the change of the distance between the thread rolling channels between the movable seat and the fixed seat can be found in time, so that the thread rolling channels are maintained at a set initial distance value, and the yield of the thread rolling quality of the screw is effectively and greatly improved.

Description

Technical Field

[0001] The invention relates to a screw thread rolling machine, in particular to a screw thread rolling machine with spacing sensing. Background Art

[0002] See also Figure 1 The existing thread rolling machine 1 includes a machine platform 11, and a feeding unit 12 and a thread rolling plate group 13 respectively arranged on the machine platform 11; wherein the machine platform 11 has a movable seat 111, and a fixed seat 112 corresponding to the movable seat 111 and arranged at an interval, and the fixed seat 112 has a body 112a, an adjustment block 112b arranged on the side of the body 112a and adjacent to the movable seat 111, and an adjustment member 112c capable of adjusting the distance between the adjustment block 112b and the body 112a, and another The rolling plate group 13 has a first tooth plate 131 arranged on the movable seat 111, and a second tooth plate 132 arranged on the adjusting block 112b, and the first tooth plate 131 and the second tooth plate 132 are arranged in parallel, and a rolling channel 133 connected to the feeding unit 12 is formed between the first and second tooth plates 131 and 132; therefore, the rolling channel 133 is used for the blank to pass through, and then the first and second tooth plates 131 and 132 are cooperated to extrude and form, so that a plurality of blanks are rolled and formed in sequence.

[0003] However, it is found that in the existing thread rolling forming process, the screw thread rolling machine 1 adopts manual method to perform the initial adjustment of the thread rolling plate group 13, that is, after adjusting the distance between the thread rolling channel 133 between the first thread plate 131 and the second thread plate 132, the thread rolling operation is started, and during the operation, the finished products that have been threaded are randomly inspected by manual inspection at any time, and the size change caused by the inspection result is used to determine whether the distance between the thread rolling channels 133 has changed, and then it is used as a basis for adjustment. However, due to the factors of machine automation, each operator does not work in a one-person-one-machine mode, but actually in a one-person-multiple-machine working mode. Therefore, when the thread rolling channel 133 changes, it is actually impossible to immediately and effectively discover the error and make adjustments, resulting in the inability to effectively control the quality of the finished product after thread rolling forming, and also causing a large number of defective products to be produced, indirectly increasing the manufacturing cost, which needs to be improved.

[0004] In view of this, some industry insiders have made improvements to the above-mentioned shortcomings. See Taiwan Patent No. M373788, "Screw Sensing Machine with Sense of Thread Rolling Pressure", which mainly discloses that a pressure sensor facing the thread rolling channel is provided on the fixed thread plate on the screw thread rolling machine, so as to sense the pressure value generated by the extrusion force of the blank during the thread rolling process, and then adjust the setting position of the thread plate group; however, although the pressure value can detect the change of the thread rolling plate group, it is found after actual use that the effect still has room for improvement, because when the fixing force between the thread rolling plate groups is not obviously loose, the size change between the thread rolling channels cannot be immediately detected, and there is also the problem of causing a large number of defective products, which also needs to be improved. Summary of the invention

[0005] Therefore, the purpose of the present invention is to provide a screw rolling machine with spacing sensing, which can detect the spacing changes of the rolling channel in time, so as to immediately adjust and ensure that the rolling channel maintains the set initial spacing value, thereby effectively improving the yield of the rolling quality.

[0006] Therefore, the present invention has a screw thread rolling machine with spacing sensing, which has a machine platform, a feeding unit and a thread rolling plate group separately arranged on the machine platform; wherein, the machine platform has a movable seat, and a fixed seat arranged at a distance corresponding to the movable seat, and the above-mentioned fixed seat has a main body, an adjustment block arranged on the side of the main body and adjacent to the movable seat, an adjustment member for adjusting the spacing between the adjustment block and the main body, and a spacing sensing member with a sensing end is respectively arranged on both sides of the main body, and multiple spacing sensing members are connected to a processing module; therefore, when the movable seat carries the first tooth plate of the tooth plate group to move at a high speed and is arranged with the adjustment member When the second tooth plate on the block performs the thread rolling operation, the multiple spacing sensors will sense the spacing change between the main body and the adjustment block in a non-contact manner. At the same time, the multiple spacing sensors will transmit the sensed spacing change data to the processing module for judgment, so that the processing module can judge the correctness of the thread rolling channel spacing between the first and second tooth plates on the machine, and use it as a basis for adjustment and correction. If there is a change in the thread rolling operation, it can be effectively and quickly discovered through the real-time prompt during sensing, so as to further immediately adjust the thread rolling channel spacing to ensure that the thread rolling channel maintains the set initial spacing value, effectively and significantly improving the yield rate of the screw thread rolling quality.

[0007] As a further improvement of the present invention, two sides of the main body are each provided with a slot corresponding to the adjustment block, and a plurality of the slots are respectively provided for the spacing sensing member to be disposed.

[0008] As a further improvement of the present invention, the distance sensor has a transmitter and a receiver for receiving a signal from the transmitter.

[0009] As a further improvement of the present invention, the transmitter may be a light transmitter or a wave transmitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of an existing thread rolling machine.

[0011] Figure 2 It is a schematic diagram of a first preferred embodiment of the present invention.

[0012] Figure 3 A schematic diagram of the local components of the preferred embodiment.

[0013] Figure 4 Schematic diagram of the partial component actions of the preferred embodiment.

[0014] Figure 5 It is a schematic diagram of a second preferred embodiment of the present invention.

[0015] Explanation of symbols:

[0016] (Prior Art)

[0017] 1: Thread rolling machine

[0018] 11: Machine

[0019] 12: Feeding unit

[0020] 13: rubbing board set

[0021] 111: Mobile seat

[0022] 112: Fixed seat

[0023] 112a: Ontology

[0024] 112b: Adjustment block

[0025] 112c: Adjustment

[0026] 131: First tooth plate

[0027] 132: Second tooth plate

[0028] 133: Teeth rubbing channel

[0029] (The present invention)

[0030] 3: Thread rolling machine

[0031] 31: Machine

[0032] 32: Feeding unit

[0033] 33: Tooth plate group

[0034] 34: Distance sensor

[0035] 35: Processing module

[0036] 36: Control unit

[0037] 311: Mobile seat

[0038] 312: Fixed seat

[0039] 312a: Ontology

[0040] 312b: Adjustment block

[0041] 312c: Adjustment

[0042] 321: Pushing parts

[0043] 331: First tooth plate

[0044] 332: Second tooth plate

[0045] 333: Teeth rubbing channel

[0046] a: Sensing end

[0047] a1: Transmitter

[0048] a2: Receiver

[0049] b: Slotting

[0050] c: Screw blank

[0051] d: Spacing

[0052] e1: Width of the body

[0053] e2: adjust the width of the block DETAILED DESCRIPTION

[0054] The foregoing and other technical contents, features and effects of the present invention will be more clearly understood in the following detailed description of preferred embodiments with reference to the accompanying drawings.

[0055] See also Figure 2 In the first preferred embodiment of the present invention, the screw thread rolling machine 3 includes a machine table 31, and a feeding unit 32 and a thread rolling plate group 33 respectively arranged on the machine table 31; wherein the machine table 31 has a movable seat 311, and a fixed seat 312 corresponding to the movable seat 311 and arranged at an interval, and the fixed seat 312 has a main body 312a, an adjustment block 312b arranged on the side of the main body 312a and adjacent to the movable seat 311, and an adjustment member 312c capable of adjusting the distance d between the adjustment block 312b and the main body 312a. In the present embodiment, a slot b is respectively provided on the two sides of the main body 312a, and each slot b is arranged corresponding to the adjustment block 312b.

[0056] In addition, the thread rolling plate group 33 has a first thread plate 331 arranged on the movable seat 311, and a second thread plate 332 arranged on the adjustment block 312b, and the first thread plate 331 and the second thread plate 332 are arranged in parallel, and a thread rolling channel 333 connected to the feed unit 32 is formed between the first thread plate 331 and the second thread plate 332. At the same time, the feed unit 32 also has a pushing piece 321, and the pushing piece 321 is located between the thread rolling channel 333 and the feed unit 32 to push the output screw blank c so that it enters the thread rolling channel 333 under the support of the first thread plate 331 and performs a thread rolling stroke.

[0057] In particular, in this embodiment, please refer to Figure 3, a spacing sensor 34 having a sensing end a is provided on each side of the body 312a, and a plurality of the spacing sensors 34 are connected to a processing module 35, and two of the spacing sensors 34 are respectively arranged in one of the slots b, so that the sensing ends a of the plurality of spacing sensors 34 sense the spacing change between the adjustment block 312b and the body 312a in a non-contact manner, and the plurality of spacing sensors 34 transmit the data of the spacing change to the processing module 35 for judgment, and the above-mentioned sensing end a is designed to have a transmitter a1 and a receiver a2 for receiving the signal of the transmitter a1. Of course, the transmitter a1 can be a light transmitter or a wave transmitter, and each of the transmitters a After the sensing signal is transmitted to the adjusting block 312b through the slot b, the sensing signal will be refracted and reflected to the slot b after contacting the adjusting block 312b, so that each spacing sensing element 34 uses the transmitted signal to sense the change of the spacing d between the adjusting block 312b and the main body 312a in a non-contact manner, and the receiver a2 will receive the length of the sensing signal reflected from the adjusting block 312b, convert it into a numerical value and output it externally, and at the same time, the frequency of the signal transmitted by the transmitter a1 can be set in a continuous or intermittent manner, and the setting form of the spacing sensing element 34 using the transmission sensing signal can select an appropriate sensing mode configuration according to the needs of the thread rolling operation. The processing module 35 is suitable for use, and no examples are given below. As for the processing module 35, it is a setting that can store a default value in advance. The default value is the spacing of the first tooth plate 331 and the second tooth plate 332 between the first tooth plate 331 and the second tooth plate 332 that is first debugged and controlled before the tooth rolling stroke is performed as the initial value setting and stored in the processing module 35. At the same time, the processing module 35 is set in the control unit 36 ​​of the machine 31 (shown in a simplified diagram in the figure) to compare and judge the data of the sensing spacing change received respectively with the default value, so as to serve as the basis for controlling the operation of the machine 31. At the same time, the comparison and judgment method of the processing module 35 can be based on the sensing data transmitted by the two spacing sensing elements 341, with individual The control unit 36 ​​is not operated if the offset data is within the allowable range; on the contrary, if the offset data exceeds the default range, the control unit 36 ​​will issue an alarm to remind the operator (such as lighting up a light, beeping, or lighting up a light and stopping the machine at the same time), so that the operator can go to make improvements as soon as possible. At the same time, the difference value after comparison and judgment can be displayed on a display (not shown in the figure), providing the operator with a basis for timely knowing and adjusting the spacing of the tooth-rolling channel 333.

[0058] See also Figure 2 and Figure 3First, before the operation, the first tooth plate 331 is locked on the movable seat 311 for positioning, and the second tooth plate 332 is locked on the adjustment block 312b corresponding to the movable seat 311 for positioning, and then the corresponding distance between the first tooth plate 331 and the second tooth plate 332 is adjusted to adjust the position of the movable seat 311 and the adjustment block 312b, so that the first tooth plate 331 and the second tooth plate 332 are arranged in parallel, and a tooth rolling channel 333 connected to the feeding unit 32 is formed between the first tooth plate 331 and the second tooth plate 332, and at the same time, the position of the movable seat 311 and the adjustment block 312b after the current adjustment on the machine table 31 is used as a reference, that is, the synchronous start The spacing sensor 34 is arranged on the main body 312a, so that the transmitter a1 emits a sensing signal from the slot b. After the sensing signal contacts the adjustment block 312b, it is reflected and refracted toward the slot b. After the receiver a2 receives the reflected sensing signal, it converts it into a data value and immediately transmits it to the processing module 35, so as to store the sensing data received this time as the setting of the initial spacing preset value (or expressed as zero) of the tooth rolling channel 333, and serve as the basis for subsequent processing comparison and judgment, so that the machine 31 can be immediately controlled during the subsequent tooth rolling operation, and the problem can be quickly solved. After the debugging is completed, the tooth rolling machine 3 can be started and officially operated.

[0059] Therefore, when the thread rolling machine 3 is in operation, the feed unit 32 sequentially outputs the plurality of screw blanks c one by one, so that the screw blanks c enter the thread rolling channel 333 under the driving of the pusher 321 and the movement of the first tooth plate 331, and are located between the first tooth plate 331 and the second tooth plate 332, so that the screw blank c is clamped and quickly completes the thread rolling stroke between the first and second tooth plates 331 and 332, and the transmitter a1 of the spacing sensor 34 at the slot b starts to drive the machine 31. At the same time, a sensing signal is synchronously emitted outward for sensing, so that the sensing signal is reflected immediately after contacting the adjustment block 312b, and refracted to the slot b to be received by the receiver a2. The receiver a2 then converts the long and short refractive indices of the sensing signal reflected back and immediately transmits it to the processing module 35 for comparison and judgment. Therefore, during the thread rolling stroke, the vibration force generated by the machine 31 as a whole during high-speed operation, and the vibration of the first tooth plate 331 and the second tooth plate 331 during the high-speed driving of the moving seat 311 The force generated by the relative rolling of the plate 332 will be fed back to the adjustment block 312b, so that the adjustment block 312b will be affected by the vibration force of the high-speed movement and the force generated by the rolling, and there is a risk of positional deviation, causing the corresponding distance between the first tooth plate 331 and the second tooth plate 332 to change due to the suspected deviation of the adjustment block 312b. At this time, after the machine 31 is started, the processing module 35 continues to receive the receiver a2 of the two spacing sensors 34 continuously transmitted by the adjustment block The sensed data reflected back by 312b is compared and judged in individual or cross comparison modes for the currently received data and the stored default values. If the comparison determines that the sensed data and the set initial spacing value are unchanged, or the difference is within the allowable range, it means that the spacing d between the adjustment block 312b and the main body 312a has not changed, and the tooth-rolling channel 333 is still maintained at the value of the set initial spacing, which means that no offset is formed and the tooth-rolling operation can still continue.

[0060] On the contrary, if the processing module 35 compares and determines that the received sensing data is greater than the set initial spacing value, or is less than the set initial spacing value, it means that the spacing d between the adjustment block 312b and the main body 312a has shifted and changed, and the difference is no longer within the allowable range. At the same time, the spacing data of the thread rolling channel 333 received at the moment also deviates from the set initial spacing value. Figure 4As shown, it means that if the rolling operation continues, a large number of defective products will be produced. At this time, the processing module 35 will quickly prompt the control unit 36 ​​with the result of the comparison and judgment, and at the same time, the rolling machine 3 will be stopped and the operation will be suspended, so that the operator will go to solve the problem immediately under the prompt, and use the difference distance value displayed on the display as the adjustment basis for correcting the distance d between the main body 312a and the adjustment block 312b, and adjust the adjustment block 312b through the adjustment member 312c to adjust the adjustment block 312b Return to the original initial setting position, so that the spacing of the thread rolling channel 333 is restored to the initial setting state, and then the machine 31 is started to continue the thread rolling stroke; therefore, during the thread rolling operation, the change of the spacing d between the adjustment block 312b and the main body 312b is sensed in a non-contact manner, and a prompt is given after processing and comparison. It can effectively detect the change of the spacing of the thread rolling channel 333 in a timely manner to ensure that the thread rolling channel 333 is maintained at the set initial spacing value, thereby more effectively improving the thread rolling quality and greatly improving the yield rate of the screw thread rolling quality.

[0061] See also Figure 5 The second preferred embodiment of the present invention still includes components such as a machine table 31, a feeding unit 32, a thread rolling plate 33, two spacing sensors 34 and a processing module 35; in particular, the width e1 of the body 312a of the fixed seat 311 is set smaller than the width d2 of the adjustment block 312b, that is, the two sides of the body 312a are just provided with one spacing sensor 34; therefore, by the manner of locating the plurality of spacing sensors 34 on the side of the body 312a, the plurality of spacing sensors 34 sense the change of the spacing d between the corresponding adjustment block 312b and the body 312a in a non-contact manner when the thread rolling machine 3 performs the thread rolling operation, and output the sensed change data to be transmitted to the processing module 35 for judgment, so that when the spacing change of the thread rolling channel 333 between the movable seat 311 and the fixed seat 312 is found in real time, it can be effectively resolved as soon as possible to ensure that the thread rolling channel 333 is maintained at the set initial spacing value, effectively and significantly improving the yield rate of the screw thread rolling quality.

[0062] To summarize the above, the present invention has a screw thread rolling machine with spacing sensing, and the fixed seat of the thread rolling machine is respectively composed of a main body, an adjustment block and an adjustment member, and a spacing sensing member and a processing module connected to the spacing sensing member are respectively provided on both sides of the main body, and a slot corresponding to the adjustment block is respectively provided on both sides of the main body, and a plurality of the slots are respectively provided for the spacing sensing member to be set, and a plurality of the spacing sensing members are utilized to synchronously non-contactly sense the spacing change between the adjustment block and the main body and output it, which is used in conjunction with the processing module for comparison and judgment, so as to effectively and timely discover the spacing change of the thread rolling channel between the movable seat and the fixed seat of the thread rolling machine, and by real-time detection of the change of the thread rolling channel, the thread rolling channel can be quickly adjusted and resolved to ensure that the thread rolling channel maintains the set initial spacing value, thereby effectively and significantly improving the yield rate of the screw thread rolling quality.

[0063] The above description is only for explaining the preferred embodiments of the present invention, and it cannot be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the invention specification should still fall within the scope of the patent of the present invention.

Claims

1. A screw thread rolling machine with spacing sensing, the screw thread rolling machine comprising a machine platform, and a feeding unit and a thread rolling plate group separately arranged on the machine platform; wherein, The machine has a movable seat and a fixed seat arranged at an interval corresponding to the movable seat, and the fixed seat has a body, an adjustment block arranged on the side of the body and adjacent to the movable seat, and an adjustment member for adjusting the distance between the adjustment block and the body. In addition, the rolling plate group has a first tooth plate arranged on the movable seat, and a second tooth plate arranged on the adjustment block. The first tooth plate and the second tooth plate are arranged in parallel, and a rolling channel connected to the feeding unit is formed between the first and second tooth plates; the characteristics are as follows: A spacing sensor with a sensing end is provided on each side of the main body, and multiple spacing sensors are connected to a processing module so that the sensing ends of the multiple spacing sensors can sense the spacing changes between the adjustment block and the main body in a non-contact manner. The multiple spacing sensors transmit the data of the spacing changes to the processing module for judgment, so as to judge the correctness of the spacing between the first and second tooth plates.

2. The screw thread rolling machine with spacing sensing according to claim 1, characterized in that: The two sides of the main body are respectively provided with a slot corresponding to the adjustment block, and a plurality of the slots are respectively provided for the spacing sensing member to be arranged.

3. The screw thread rolling machine with spacing sensing according to claim 1 or 2, characterized in that: The distance sensor has a transmitter and a receiver for receiving the signal of the transmitter.

4. The screw thread rolling machine with spacing sensing according to claim 3, characterized in that: The transmitter may be a light transmitter or a wave transmitter.

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