JP3846694B2 - Work processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece processing apparatus that sequentially transfers a workpiece that has been processed from the upstream side to the downstream side of the line while applying the processing to the workpiece in each step on the line.
[0002]
[Prior art]
In order to automatically perform multiple machining processes on workpieces, multiple workpiece processing units are arranged in a predetermined order from the upstream side to the downstream side of the machining line, and workpieces are intermittently and sequentially placed on each workpiece processing unit. It is generally done to transfer. For example, the deburring tools 106, 107, 108, 109 having shapes corresponding to the through holes are formed on the peripheral edges of the through holes 102, 103, 104, 105 of the casting workpiece W as shown in FIG. As the work processing apparatus 110 in the case of automatically inserting and removing shears, apparatuses as shown in FIGS. 11 to 13 are used.
[0003]
The workpiece processing apparatus 110 is provided with workpiece placement positions i to n set at equal intervals on a workpiece mounting table 111 extending along a processing line. At each of the workpiece placement positions i to n, workpiece processing units 112, 113, 114, and 115 including deburring tools 106, 107, 108, and 109 for processing the workpiece W, and workpiece phase indexing units 116 and 117 are provided. Is arranged. Further, at each work arrangement position i to n, a fixing rod 118 that protrudes upward from the work mounting table 111 and engages with the lower part of the work W so that the work W can be fixed when machining and phase indexing is performed. 118 and engagement rods 120, 121, 122, 123... That extend downward from the upper frame 119 and engage with the upper portion of the workpiece W are disposed.
[0004]
Further, in order to intermittently transfer the workpiece to each workpiece placement position in the next process, on the opposite side across the workpiece mounting table 111 so as to face the processing units 112, 113, 114, 115 and the phase indexing units 116, 117. A moving shuttle 125... 125 having chucks 124. The moving shuttle 125... 125 is fixed to a table 127 that can slide on the slide rail 126, and the table 127 can be reciprocally slid by one step along the processing line by the drive cylinder 128. ing.
[0005]
The deburring and phase indexing of the workpiece W by the automatic processor 110 is performed at the same time in each step as shown in FIG. First, the fixed rod 118 and the engagement rod 120 are engaged with the workpiece W supplied to the workpiece arrangement position i in the first step on the upstream side of the processing line. The engagement rod 120 rotates the workpiece W by the connected rotary motor 129. The phase indexing unit 116 lightly presses the insertion tool 130 corresponding to the through hole 102 having the largest workpiece W against the rotating workpiece W, and is fitted into the through hole 102, whereby the phase of the workpiece W is indexed. Is called.
[0006]
At the workpiece placement position j in the second step, after the workpiece W is fixed by the fixing rod 118 and the engagement rod 121, the workpiece processing unit 112 inserts the deburring tool 106 into the through hole 102, thereby shearing the burrs. Removal is performed. At the workpiece placement position k in the third step, the workpiece processing unit 113 is fixed to the through hole 104 formed next to the through hole 102 after the workpiece W is fixed by the fixing rod 118 and the engagement rod 121. By inserting the burrs, shear removal of burrs is performed.
[0007]
In the fourth process work placement position l, the engagement rod 123 reverses the work W by a connected rotary motor in order to deburr the through holes 103 and 105 formed on the back side of the through holes 102 and 104 ( And the phase indexing unit 117 fits the insertion tool 131 into the through hole 103 to perform phase indexing. Then, as in the second and third steps, the deburring tool 107 is inserted into the through hole 103 at the work placement position m in the fifth step, and the penetration is performed at the work placement position n in the last sixth step. By inserting the deburring tool 109 into the hole 105, the burr shearing removal is completed.
[0008]
The chuck 124... 124 is engaged by the extension of the drive cylinder from the moving shuttle 125... 125 to the work W for which the above operation has been completed in each step (FIG. 15), and the moving shuttle 125. ... By sliding 125, the workpiece W is transferred on the workpiece mounting table 111 to the next process (FIG. 16). The moving shuttles 125... 125 return to the previous process to transfer the next workpiece after the chucks 124. As described above, the deburring operation for the four through holes of the workpiece W is automatically performed. However, the above apparatus has the following problems.
[0009]
[Problems to be solved by the invention]
First, in addition to the processing time of the workpiece W in each process and the transfer time between the processes, the operation time for engaging and releasing the chucks 124... 124 performed when transferring between the processes is required. As a whole, there is a problem that the processing time of the workpiece becomes long.
[0010]
In addition, since the moving shuttle 125... 125 completely takes one side out of the spaces on both sides adjacent to the work mounting table 111 along the processing line, the work processing units 112 to 115 are all opposite to each other. It will be placed on one side. Therefore, there is a problem that only one machining unit can be arranged with respect to one workpiece arrangement position in terms of space, the machining line becomes long, and the entire apparatus becomes large. In particular, when the target location for processing is also on the surface on the back side of the workpiece, it is necessary to provide a step 1 for reversing and phase-determining the workpiece W in the middle of the processing processing line as in the above-described prior art. This increased the line and increased the size of the equipment.
[0011]
Further, during the processing of the workpiece W, the fixed rods 118... 118 and the engagement rods 120, 121... Fix and support the workpiece W from above and below. When engaged only from one side, the thrust is greatly deflected in the direction of the arrow as shown in FIG. 17, thereby causing the workpiece W to be displaced. For this reason, there is a problem that the driving mechanism of these fixed support members is likely to break down, and there is a case where the processing for the workpiece W cannot be performed reliably. In order to prevent this, it is conceivable to increase the strength of the fixed support member or to provide a separate support stopper. However, there arises a problem that the apparatus becomes large and complicated.
[0012]
In addition, each work processing unit requires a tool driving mechanism, and each moving shuttle also requires a chuck driving mechanism, which increases the cost.
[0013]
Therefore, the inventor of the present invention abolished the moving shuttle and chuck mechanism, and shortened the work processing time by reducing the operation at the time of workpiece transfer, and shortening the process by eliminating wasted space, A work processing apparatus has been devised that solves the above problems, such as miniaturization of the apparatus.
[0014]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a workpiece placement position, a workpiece processing unit disposed at a position corresponding to the workpiece placement position, and a machining process fixed to the workpiece processing unit and disposed on the workpiece placement position. And a workpiece processing apparatus capable of processing a workpiece with the tool and transferring the workpiece from the workpiece placement position to the next process, wherein the workpiece processing unit engages the tool with the workpiece. By performing the processing on the workpiece, the workpiece is moved to the next step directly while maintaining the engagement state of the tool with the workpiece, so that the workpiece is moved to the next step. The engagement state with the workpiece is released, the workpiece is placed in the next process, and the process returns to the previous process. Provides a work processing apparatus for.
[0015]
According to the workpiece processing apparatus of the first aspect of the invention, the following operational effects can be obtained. In other words, the workpiece is processed by engaging the tool with the workpiece, and the tool is moved while maintaining the engagement state between the workpiece and the tool, so that the workpiece is held and transferred by the tool. Therefore, it is not necessary to provide a dedicated chuck or a moving shuttle for holding the workpiece, and the apparatus can be simplified, downsized, and the cost can be reduced. Even when the workpiece phase needs to be determined at the workpiece placement position in the next process, the workpiece processing unit is moved linearly while maintaining the engagement state between the workpiece and the tool. While maintaining the posture of the work in the process, it can be transferred to the work placement position of the next process, etc., and it is possible to save the trouble of re-determining the phase of the work. Furthermore, since the workpiece processing (engagement and release of the tool) also serves as the chuck and the release of the chuck, there is an advantage that the processing time of the workpiece can be shortened as a whole.
[0016]
According to a second aspect of the present invention, there is provided a workpiece placement position, a workpiece processing unit arranged at a position corresponding to the workpiece placement position, and a machining process fixed to the workpiece processing unit and arranged on the workpiece placement position. And a workpiece processing apparatus capable of processing a workpiece with the tool and transferring the workpiece from the workpiece arrangement position to the next process, wherein the workpiece processing unit sandwiches the workpiece arrangement position. It is arranged in a state of being opposed to both sides, and the work is processed on the workpiece by simultaneously engaging the tool from both sides of the workpiece, while maintaining the engaged state of the tool with respect to the workpiece. The workpiece is moved to the next process by moving to the next process, and the tool is moved to the next process. To release the engagement state with respect to the workpiece to position the workpiece to the next step, providing a workpiece processing apparatus characterized by going back to the previous step.
[0017]
In the workpiece processing apparatus according to the second aspect of the present invention, the processing is performed by simultaneously engaging the tool from both sides sandwiching the workpiece, and the tool is moved while maintaining the engaged state of the workpiece and the tool. In addition to the invention of item 1, the following effects are obtained. That is, different parts of the workpiece can be processed in one process, and there is no need to provide a process for reversing the workpiece, so that the processing line can be shortened and the apparatus can be made compact. Furthermore, compared to the case where the tool is engaged only from one side with respect to the workpiece, the load applied to the workpiece fixing support member in each process is reduced, there is less risk of failure, and there is less displacement of the workpiece. It will surely be processed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0019]
First, the structure of the workpiece processing apparatus according to the present invention will be described with reference to FIGS. FIG. 1 shows a side view of a workpiece processing apparatus 1 according to the present invention. 2 shows a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 shows a cross-sectional view taken along line BB in FIG. In order to make the drawing easy to see, the work processing unit is omitted in FIG. 2, and the frame is omitted in FIG.
[0020]
The workpiece processing apparatus 1 corresponds to the workpieces W arranged at the workpiece arrangement positions X, Y, and Z provided at equal intervals on the workpiece processing line, and a plurality of pairs arranged at the workpiece processing positions of the respective processing steps. In the direction of arrow C from the upstream process (X) side to the downstream process (Z) side while sequentially processing with the insertion tools and tools provided in the workpiece processing units 51 and 52, 53 and 54, and 55 and 56. To be transported. In the present embodiment, as a processing process for a workpiece, a case will be described in which a process for removing burrs generated in a through hole of a workpiece W having the same shape as the workpiece W shown in the prior art is performed. The reference numerals 102 to 105 common to those of the prior art are used for the through holes. In this description, in order to facilitate understanding, directions such as up, down, left, and right are described. However, the configuration and the installation direction of the work processing apparatus according to the present invention are not limited thereby.
[0021]
Reference numeral 2 denotes a frame of the work processing apparatus, and an upper frame 22 and a lower frame 23 are bridged over an external frame 21. The lower frame 23 is provided with a workpiece mounting table 3 that extends along the workpiece processing line and serves as a transfer path for the workpiece W.
[0022]
The workpiece mounting table 3 has a slit-like hole 31 provided along the workpiece processing line at the center. A fixed rod 4 that fixes and supports the workpiece W at workpiece placement positions X, Y, and Z corresponding to each process is disposed below the workpiece mounting table. The fixed rod 4 protrudes upward from the hole 31 by the extension of the cylinder 41 from below the workpiece mounting table 3. The protruding fixed rod 4 is engaged with the lower part of the work W placed on the work placing table 31 so that the work W is not displaced during processing in each process. In FIG. 2, the fixed rod 4 is illustrated only for the workpiece arrangement position X, but is similarly arranged at positions corresponding to the workpiece arrangement positions Y and Z. The fixed rod 4 arranged at the workpiece arrangement position X is rotatable around an axis.
[0023]
As shown in FIG. 3, paired work processing units 51 and 52 are provided on both sides of the work placing table 3 at positions (work processing positions) corresponding to the work placement positions X, Y, and Z in each process. 53 and 54, and 55 and 56 are arranged facing each other. The workpiece processing units 51, 52, 53, 54, 55, and 56 are advancing and retracting members 511, 521, 531, 541, 551, and 561 that move forward and backward with respect to the workpiece W placed on the workpiece placing table 31 by the drive cylinder. It has.
[0024]
The front and rear members 511 and 521 of the workpiece processing units 51 and 52 at the workpiece processing position corresponding to the workpiece arrangement position X are respectively engaged with two through holes 102 and 103 formed on the side surface of the cylindrical workpiece W. Thus, the insertion tools 512 and 522 for determining and gripping the phase of the workpiece are fixed. The insertion tools 512 and 522 have shapes corresponding to the through holes 102 and 103, and when the workpiece W is gripped, stoppers 513 and 523 for contacting the outer peripheral portion of the side surface of the workpiece W and stabilizing the gripping state are provided. Have.
[0025]
At the tips of the advance / retreat members 531 and 541 of the workpiece processing units 53 and 54 corresponding to the workpiece arrangement position Y, the two through holes 102 and 103 that are the same as the holes that the grippers 512 and 522 were engaged with are engaged. Deburring tools 532 and 542 for removing burrs generated in the through holes 102 and 103 are fixed. The front and rear members 551 and 561 of the workpiece processing units 55 and 56 corresponding to the workpiece arrangement position Z are engaged with two through holes 104 and 105 different from the through holes of the workpiece W, Deburring tools 552 and 562 for removing burrs generated inside are fixed. The deburring tools 532, 542, 552, and 562 have shapes corresponding to the through holes to be engaged with each other, and by engaging, the burrs generated inside are sheared and removed by extruding. It has become.
[0026]
Work processing units 51, 53, and 55 on one side (right side in FIG. 3) on both sides of the work placing table 3 are all fixed to the upper surface of the table 61. On the other hand, the above space is the work placing table. All the work processing units 52, 54, 56 on the opposite side (left side in FIG. 3) across 3 are fixed to the upper surface of the table 62. The tables 61 and 62 are connected by a connecting body 63 and fixed to the lower frame 23 via relative slide rails 611 and 621 so as to be slidable. Further, the connecting body 63 is connected to the nut 71 of the ball screw-nut direct acting mechanism 7 supported by the lower frame 23, and the ball screw 72 is rotated by the servo motor 8 by the transmission belt 81, so that the work processing line is set. It is possible to reciprocate directly along the line.
[0027]
Accordingly, the tables 61 and 62 and the workpiece processing units 51 to 56 fixed in a state of facing the upper surfaces thereof can be reciprocally moved synchronously along the direction of the workpiece processing line. Further, by adopting a combination of the ball screw / nut linear motion mechanism 7 and the servo motor 8, the workpiece W can be transferred to the next process at a high speed, and the workpiece W is arranged at the optimum position in the next process by electric control. It is easy to adjust the feed stroke.
[0028]
Engagement rods 91, 92, and 93 that are engaged with the upper part of the work W are suspended downward at positions corresponding to the work placement positions X, Y, and Z of the respective steps of the upper frame 22. The engagement rods 91, 92, 93 are lowered by the extension of the cylinders 911, 921, 931, respectively, and play the role of engaging and fixing the workpiece W in the same manner as the fixed rod 4. The engagement rod 91 at the workpiece arrangement position X is connected to an electric motor 912 disposed in the cylinder 911 and is configured to be able to rotate.
[0029]
Next, the operation when the workpiece W is phased to the next process while removing burrs generated in the through holes 102 to 105 on the side surface of the workpiece W using the workpiece processing apparatus 1 according to the present invention will be described. Here, for convenience of explanation, subscripts such as Wx, Wy, and Wz are added and displayed for the workpieces W placed at the workpiece placement positions X, Y, and Z in each processing step.
[0030]
The workpiece Wx is placed at the workpiece placement position X on the upper surface of the workpiece placing table 3 by a component supply device (not shown) (FIGS. 2 and 3). When the workpiece Wx is placed, the fixed rod 4 protrudes from below by extension of the cylinder 41 and engages with the lower portion of the workpiece Wx, while the engagement rod 91 descends from above by extension of the cylinder 911. Engage with the top. Thereby, the workpiece Wx is positioned at the arrangement position X.
[0031]
Next, the workpiece Wx is rotated by the electric motor 912 via the engagement rod 91. The advancing and retracting members of the workpiece processing units 51 and 52 are moved forward against the outer peripheral portion of the side surface of the rotating workpiece W, and the insertion tools 512 and 522 are pressed against them. The insertion tools 512 and 522 slide while following the outer peripheral portion of the cylindrical workpiece Wx, engage with the side through holes 102 and 103 of the workpiece W, and the stoppers 513 and 523 come into contact with the outer peripheral portion of the side (FIG. 4). . Thereafter, the fixed rod 4 and the engagement rod 91 are retracted from the workpiece Wx to the original positions by the cylinder 41 and the cylinder 911. As a result, the phase during the deburring process at the workpiece placement positions Y and Z is determined for the workpiece Wx, and the workpieces are gripped by the insertion tools 512 and 522. The insertion tools 512 and 522 are made of a slippery material such as resin so that the side surface of the workpiece W is not damaged and can be smoothly rotated, or a roller is attached to the tip. Has been.
[0032]
Then, the workpiece processing units 51 and 52 are driven by the servo motor 8 via the tables 61 and 62 while the insertion tools 512 and 522 are engaged with the workpiece Wx, and the workpiece placement of the next process is performed. The slide moves to a position corresponding to the position Y, and accordingly, the work Wx also slides to the work placement position Y (FIG. 5).
[0033]
Further, from this state, the advancing / retreating members of the workpiece processing units 51 and 52 are retracted, and the engagement of the insertion tools 512 and 522 is released, so that the phase where the workpiece Wx is indexed with the workpiece placement position X is maintained. As it is, it is placed at the workpiece placement position Y, and the transfer is completed (FIG. 6).
[0034]
Finally, the servo motor 8 rotates in the reverse direction, and the workpiece processing units 51 and 52 fixed to the tables 61 and 62 return to the positions corresponding to the workpiece arrangement positions X, that is, the original positions (FIG. 3). At this time, a new workpiece W has already been placed on the workpiece placement position X of the workpiece placing table 3 by the component supply device.
[0035]
In parallel with the phase indexing process for the workpiece Wx, the following machining process is performed at the workpiece placement position Y. The phase is indexed at the workpiece placement position X, and the fixed rod 4 protrudes from below by the extension of the cylinder 41 with respect to the workpiece Wy placed at the workpiece placement position Y of the workpiece placement table 3, and engages with the lower portion of the workpiece Wy. On the other hand, the engagement rod 92 descends from above by the extension of the cylinder 921 and engages with the upper portion of the workpiece Wy. As a result, the work Wy is supported and fixed at the work placement position Y.
[0036]
The advancing / retreating members 531 and 541 of the workpiece processing units 53 and 54 advance with respect to the workpiece Wy supported and fixed, and the deburring tools 532 and 542 engage with the through holes 102 and 103 on both sides of the workpiece W. (FIG. 4). Thereby, in the through holes 102 and 103, the deburring tools 532 and 542 remove the burrs by shearing and extruding, and the workpiece W is held by the tools 532 and 542.
[0037]
The deburring tools 532 and 542 are simultaneously advanced and engaged with the through holes 102 and 103 on the side surface of the workpiece W. Since the tools 532 and 542 arranged so as to sandwich the workpiece W from both sides and simultaneously engage with each other, the thrusts of the tools are mutually supported, and the fixed rod 4 and the engagement rod 121 for supporting and fixing the workpiece. The load in the lateral direction applied to the battery is reduced, and problems such as failure of these can be prevented. In addition, since the position blur of the workpiece W is suppressed to a small value, there is an advantage that the deburring process for the workpiece W is reliably performed.
[0038]
Next, while the deburring tools 532 and 542 and the workpiece Wy are engaged, the workpiece processing units 53 and 54 are driven by the servo motor 8 to place the workpiece in the next process via the tables 61 and 62. Slide linearly to a position corresponding to position Z. Along with this, the work Wy also slides to the work placement position Z in the next process while sliding on the upper surface of the work mounting table (FIG. 5).
[0039]
Since the through holes 102 and 103 provided in the workpiece W are square holes, and the deburring tools 532 and 542 engaged therewith are also squares corresponding to the through holes, the tools to be engaged are Although there are two, the workpiece W is substantially supported at three or more points by the engaging tool. Therefore, the holding posture of the workpiece by the tool is fixed and does not move during the transfer.
[0040]
In addition, since a servo motor is used as the drive mechanism for slide movement, the inertial force applied to the workpiece W can be adjusted by changing the workpiece moving speed and the brake application level when stopping according to the weight of the workpiece W. It is possible to avoid problems such as separation of the workpiece from the tool, or to adjust the posture of the workpiece by temporarily stopping the workpiece while moving the tool and moving the tool.
[0041]
Now, at the workpiece arrangement position Z where the workpiece Wy has moved, the advance / retreat members 531 and 541 of the workpiece processing units 53 and 54 are retracted, and the engagement between the workpiece W and the deburring tools 532 and 542 is released. Thus, the workpiece Wy is placed at the workpiece placement position Z while maintaining the same phase as the workpiece placement position Y, and the transfer is completed (FIG. 6). Therefore, it is not necessary to redo the phase determination of the workpiece W at the workpiece placement position Z.
[0042]
Finally, the servo motor 8 rotates in the reverse direction, and the work processing units 53 and 54 fixed to the tables 61 and 62 return to the positions corresponding to the work placement positions Y in the previous process, that is, the original positions (FIG. 3). ). Then, the process for the next workpiece W that has already been phased and is placed at the workpiece placement position Y of the workpiece placing table 3 is continued.
[0043]
For the workpiece Wz arranged at the workpiece processing position Z, processing similar to the workpiece Wy is performed in parallel with the processing for the workpiece Wx and the workpiece Wy. That is, the deburring tools 552 and 562 engage with another through hole formed on the side surface of the workpiece Wz (FIG. 4), and the workpiece Wz slides and moves while maintaining the engaged state (FIG. 5). In addition, the engagement of the deburring tools 552 and 562 is released, so that the transfer to the component shooter (not shown) is completed (FIG. 6). Since the phase of the workpiece W is adjusted to be constant, the workpiece is stably put into the parts shooter in a fixed posture, and unexpected trouble is prevented. The processing returns to the position corresponding to the workpiece placement position Z (FIG. 3), and the workpiece processing units 55 and 56 continue the processing for the next workpiece transferred while maintaining the determined phase.
[0044]
The processes at the work placement positions X, Y, and Z in each step are as described above, and as shown in FIGS. 3 to 6, the processes for the work placed at each work placement position are performed simultaneously in parallel. Done continuously.
[0045]
In the above embodiment, the forward / backward (engagement) direction of the tool is configured to be perpendicular to the direction in which the workpiece is transferred. For example, the workpiece processing unit 591 shown in FIG. Like the tools 592 and 602 fixed to the 601, the advancing / retreating (engaging) direction of the tool can be obliquely intersected with the direction in which the workpiece is transferred depending on the position of the workpiece target portion. In this way, it is not necessary to redo the workpiece phase indexing in order to match the machining target portion of the workpiece W with the tool orientation.
[0046]
Moreover, in the said embodiment, it is comprised so that the advancing / retreating (engagement) direction of a tool may become the same crossing angle (right angle) with respect to the direction to which a workpiece | work is conveyed about both of workpiece | work arrangement positions Y and Z. However, for example, like the tools 592 and 602 fixed to the work processing units 591 and 601 shown in FIG. 7, the advancing / retreating (engaging) direction of the tool is fixed to the work processing units 571 and 581 of the previous process. Different tools 572 and 582 may be used. In this way, even when the tool has to be engaged from a different angle in the next process, there is no need to reset the workpiece orientation.
[0047]
Furthermore, in the above-described embodiment, the work processing units arranged facing each other in the same process are configured such that the tool advances and retreats (engagement and disengagement) in the same direction. Like the tools 632 and 642 fixed to the workpiece processing units 631 and 641 to be operated, the advancing and retreating (engaging and disengaging) directions of the opposed tools may intersect. Even if there is an intersection angle, the components in the same direction of the thrust of the tool are supported by each other, and the lateral load applied to the support fixing member of the workpiece is reduced. It is what you play.
[0048]
In the above embodiment, the deburring tool is used as a tool for processing the workpiece. However, the present invention is not limited to this, and the workpiece can be transferred while being engaged with the workpiece and maintaining the engaged state. Anything is acceptable. For example, a rotary motor may be interposed between the workpiece processing unit and the tool, and a drill, a tap, a nut runner, or the like may be provided at the tip as a tool for processing the workpiece. Moreover, by arranging these tools in order, a series of operations such as drilling, thread grooving, and bolting can be performed on the same part of the workpiece W. By moving the workpiece processing unit by engaging the drill and drill hole, tap and screw hole, nut runner and bolt, respectively, the workpiece is transferred to the next process while maintaining the same phase as the previous process. Can do.
[0049]
From the word “processing”, it is understood that the tool is generally a tool that modifies the workpiece W itself. Here, however, such as an inspection tool that engages with a hole formed in the workpiece and inspects the inside. Can also be included.
[0050]
In the above embodiment, since the through hole provided in the workpiece is a square hole and the tool engaged therewith is also a square, the workpiece holding posture is fixed by simply engaging only the tool with the workpiece. However, for example, due to circumstances such that the tool to be engaged has a round bar shape, the workpiece holding posture cannot be maintained only by the engagement of the tool, and the workpiece may move during the transfer. In such a case, an engaging member that advances and retreats together with the tool is fixed to the work processing unit, and is engaged with the work together with the tool, thereby supporting the work at three points or more and ensuring the work during the transfer. Can be held in.
[0051]
In the above embodiment, both of the paired processing units are equipped with tools and the workpiece W is processed from both sides. However, only one processing unit is equipped with a tool for processing, and the other processing unit is Only a contact tool (pressing tool, engaging tool) for gripping the workpiece W may be attached. For example, a deburring tool may be mounted only on 53 of the processing units 53 and 54, and a pad that only presses or engages the workpiece W without processing may be mounted on 54. In this way, even when the tool is engaged only on one side of the workpiece, the workpiece can be stably held and transferred. Further, by simultaneously engaging the tool with the work and pressing or engaging the contact tool, both thrusts are supported, so that it is possible to prevent the fixed support tool from being broken or the work from being displaced.
[0052]
In the above-described embodiment, the process of processing the workpiece W is two processes (Y, Z), but may be three processes or more, or only one process.
[0053]
【The invention's effect】
According to the workpiece processing apparatus of the present invention, the workpiece is processed by engaging the tool with the workpiece, and the tool is moved while maintaining the engagement state between the workpiece and the tool. In addition, there is no need to provide a moving shuttle, and the apparatus can be simplified, reduced in size, and reduced in cost. Even when the workpiece phase needs to be determined at the workpiece placement position in the next process, the workpiece processing unit is moved linearly while maintaining the engagement state between the workpiece and the tool. While maintaining the posture of the work in the process, it can be transferred to the work placement position of the next process, etc., and it is possible to save the trouble of re-determining the phase of the work. Furthermore, since the workpiece processing (engagement and release of the tool) also serves as the chuck and the release of the chuck, there is an advantage that the processing time of the workpiece can be shortened as a whole.
[0054]
Furthermore, since the tool is engaged with the workpiece so as to be sandwiched from both sides at the same time, different parts of the workpiece can be machined in one step, and there is no need to provide a step of inverting the workpiece. Lines can be shortened and equipment can be made compact. Furthermore, compared to the case where the tool is engaged only from one side with respect to the workpiece, the load applied to the workpiece fixing support member in each process is reduced, there is less risk of failure, and there is less displacement of the workpiece. It will surely be processed.
[Brief description of the drawings]
FIG. 1 is a side view showing a work processing apparatus according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 of the work processing apparatus according to the present invention.
3 is a cross-sectional view of the workpiece processing apparatus according to the present invention, taken along line BB in FIG.
4 is a view showing a state in which the tool is engaged with a workpiece in FIG. 3;
FIG. 5 is a diagram showing a state in which the workpiece is transferred to the next process in FIG. 3;
6 is a view showing a state in which the tool is disengaged from the workpiece in FIG. 3;
FIG. 7 is a diagram showing a modification of the work processing apparatus according to the present invention.
FIG. 8 is a view showing another modification of the work processing apparatus according to the present invention;
FIG. 9 is a side view of a workpiece to be processed.
10 is a cross-sectional view taken along line DD in FIG. 9 of a workpiece to be processed.
FIG. 11 is a side view showing a conventional workpiece processing apparatus.
12 is a cross-sectional view taken along line EE in FIG. 11 of a conventional workpiece processing apparatus.
13 is a cross-sectional view of the conventional workpiece processing apparatus taken along line FF in FIG.
14 is a view showing a state where the tool is engaged with a workpiece in FIG. 13;
FIG. 15 is a diagram showing a state in which the workpiece is chucked in FIG. 13;
FIG. 16 is a diagram showing a state in which the workpiece is transferred to the next process in FIG.
FIG. 17 is an enlarged side view showing a state where a tool is engaged with a workpiece in a conventional workpiece processing apparatus.
[Explanation of symbols]
1 Work processing device
53 Work processing unit
54 Work processing unit
532 Deburring tool
542 Deburring tool
7 Ball screw nut mechanism
8 Servo motor
Y Work placement position
Z Work position

Claims (2)

  A workpiece placement position; a workpiece processing unit disposed at a position corresponding to the workpiece placement position; and a tool that is fixed to the workpiece processing unit and performs a machining process on the workpiece disposed at the workpiece placement position. In the workpiece processing apparatus capable of processing a workpiece with the tool and transferring the workpiece from the workpiece arrangement position to the next process, the workpiece processing unit is configured to process the workpiece by engaging the tool with the workpiece. In addition, the workpiece is moved to the next process directly while maintaining the engagement state of the tool with the workpiece, thereby moving the workpiece to the next step and releasing the engagement state of the tool with the workpiece in the next step. The workpiece processing equipment is characterized by placing the workpiece in the next process and returning to the previous process. .   A workpiece placement position; a workpiece processing unit disposed at a position corresponding to the workpiece placement position; and a tool that is fixed to the workpiece processing unit and performs a machining process on the workpiece disposed at the workpiece placement position. In the workpiece processing apparatus capable of processing a workpiece with the tool and transferring the workpiece from the workpiece arrangement position to the next process, the workpiece processing unit is connected in a state of facing both sides of the workpiece arrangement position. The workpiece is processed by simultaneously engaging the tool from both sides of the workpiece, and the tool is moved directly to the next step while maintaining the engagement state of the tool with the workpiece. To move the workpiece to the next process, and engage the tool with the workpiece in the next process. To release the state to place the workpiece in the next step, the workpiece processing apparatus characterized by going back to the previous step.

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