TWI590895B - With automatic horizontal feed and retract the traditional lathe function - Google Patents

Description

Traditional lathe with automatic lateral feed and retraction

The invention mainly discloses a lathe, in particular a conventional lathe having an automatic lateral feeding and retracting function.

The conventional processing lathe is provided with a sliding track on the lathe body, a turning tool pedestal is arranged on the sliding track, the turning tool pedestal can be translated in the direction of the sliding track, and the horizontal sliding seat is arranged on the turning pedestal, and the horizontal sliding seat is screwed On the lateral hand wheel with the screw, the user can drive the lateral sliding seat to slide on the turning tool pedestal by rotating the lateral hand wheel, and the turning seat is provided with a turning tool fixing seat, and the feeding device is fixed. The knives; wherein the turning pedestal is further provided with a running platform on the side of the lathe body, a row of teeth is arranged in parallel parallel to the sliding track, a panning hand wheel is arranged on the operating table, the panning hand wheel is engaged with the toothing, and the side of the lathe body A lead screw is arranged on the bottom, and a semi-nut seat is arranged in the operation table. The semi-nut seat is switched by the handle of the tooth to be separated from the lead screw; further, the side of the console is provided with a lead screw The tooth indicator of the transmission has a scale on the tooth indicator to indicate the rotation index of the screw; the bottom side of the operation table is provided with a micro switch, and a guide rod is arranged on the side of the lathe body, and the guide rod is disposed on the guide rod Have at least one limit ring, With the micro switch to limit the starting and ending points and the mobile base of the automatic lathe.

When the user performs the machining of the screw thread, the workpiece can be fixed to the holding mechanism of the driving spindle in advance, and the turning tool is mounted on the turning tool holder, and the horizontal sliding wheel is driven to drive the horizontal sliding seat on the turning tool base. Sliding, and the horizontal hand wheel is provided with a scale, which allows the user to record and adjust the amount of the tool to be fed, and by means of the scale of the screw rotation index displayed by the tooth indicator, the handle of the tooth is pulled to make the half The nut seat is screwed with the lead screw, and the turning pedestal and the turning tool are moved in the direction of the workpiece by the rotating lead screw, and the screw cutter is processed.

When the turning tool pedestal moves to the micro-motion closing and touches the limit ring, the lathe automatically stops the machining action, and the user needs to rotate the horizontal hand wheel to drive the turning tool to generate the retracting motion outward, and then manually rotate the pan wheel or the motor to automatically drive. In the way, the turning tool pedestal is translated to the starting point of the machining, and then the horizontal hand wheel is rotated back to the initial processing time to increase the amount of the feeding. After repeating the above process several times, the machining of the thread turning can be completed step by step.

However, it should be noted that each time the half nut seat is screwed with the lead screw, pay attention to whether the scale of the tooth indicator is the same, otherwise it will cause the failure of the thread processing; the above-mentioned conventional lathe processing is mostly manual. Direct control, especially in the process of machining the screw teeth, it is necessary to repeat the manual manual adjustment of the feed amount, switching the handle of the tooth and the semi-nut seat to clutch with the lead screw, manually retracting the knife, etc. It is necessary to record the amount of cutting of each infeed during machining, in order to avoid the problem that the infeed amount is adjusted too much, to the problem of damage to the turning tool or the workpiece, and to pay attention to the display thread of the tooth indicator when entering the tool. Whether the rotary indexing is the same or not, the machining process is complicated.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a conventional lathe having an automatic lateral feed and retraction function which overcomes all of the disadvantages of the above-described conventional structure.

The main purpose of the invention is to provide a lathe comprising a bed base and a cutter slide, the bed base comprising a base and a bed table, the bed base Provided on a top surface of the base and extending along an axial direction of a virtual rotary shaft of the lathe, the cutter slide includes a bed saddle and a transverse slide, the saddle being capable of following the axis of the virtual rotary shaft Provided on a top surface of the bed that moves relative to the bed base, the transverse slide plate is movably disposed on a top surface of the saddle relative to the saddle in a radial direction of the virtual rotating shaft, and the first side of the saddle is along a first The axial direction of the virtual rotating shaft is provided with a transverse infeed screw. The first virtual rotating shaft extends in the radial direction of the virtual rotating shaft, and the transverse infeed screw can be synchronously driven with respect to the saddle rotation centering on the first virtual rotating shaft. The lateral sliding plate moves relative to the saddle in a radial direction of the virtual rotating shaft, and the transverse feeding screw synchronously rotates with a driven gear, and the saddle is provided with a servo motor along an axial direction of a second virtual rotating shaft , The servo motor has a driving shaft, and the driving shaft extends along the axial direction of the second virtual rotating shaft. The driving shaft is synchronously rotatably sleeved with a driving gear, and the driving gear can rotate around the second virtual rotating shaft. The gear can drive the driven gear to rotate, the cutter slide is provided with a controller, the controller and the servo motor are electrically connected to each other, the controller can control the servo motor to rotate or stop, and the lathe is driven by the servo motor The lateral feed screw rotates to enable the lathe to control the lateral feed of the lathe through program control by the controller.

The bed saddle is disposed along an axial direction of a third virtual rotating shaft, and an intermediate shaft is synchronously rotatably sleeved with a first idler gear and a second idler gear. The first idler gear and the driving gear are opposite to each other. Engaging, the second idler gear and the driven gear mesh with each other, and the drive gear can drive the driven gear to rotate through the first idler gear and the second idler gear.

The second virtual rotating shaft and the virtual rotating shaft are parallel to each other, the third virtual rotating shaft and the first virtual rotating shaft are parallel to each other, and the third virtual rotating shaft intersects with the second virtual rotating shaft, the driven gear is a spur gear, and the active gear The gear is a helical gear, the first idler is a helical gear, and the second idler is a spur gear.

The cutter slide comprises a mattress, the mattress is connected to the bed and the mattress is located on the front side of the base, and the mattress is provided with a thread cutting half-nut on a side different from the bed a control rod and an automatic feed control rod, the thread cutting half-nut control rod is connected with a first fluid pressure device, and the first fluid pressure device can drive the thread cutting half-nut control rod to move, the automatic feed The knife control lever is coupled to a second fluid pressure device that is configured to move the automatic feed control lever, the controller being electrically coupled to the first fluid pressure device and the second fluid pressure device.

The front surface of the base is provided with a feed limit rod along an axial direction of the virtual rotary shaft, and the feed limit rod is provided with a first stop and a second stop, the first stop and the second block The block is movable relative to the feed limit rod along an axial direction of the virtual rotary shaft, the bed is connected with a first limit switch and a second limit switch, and the first limit switch and the second limit switch are located at the first The controller is electrically connected to the first limit switch and the second limit switch at the same time between the block and the second block.

The first fluid pressure device and the second fluid pressure device are pneumatic cylinders.

The controller is fixedly attached to the top surface of the saddle.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The technology, means and functions of the present invention are described in detail with reference to the accompanying drawings.

1 and 2, a perspective view and a front view of a conventional lathe having an automatic lateral feeding and retracting function are provided. The lathe 10 of the present invention includes a bed base 20 and a cutter slide 30; wherein:

The bed base 20 includes a base 21 and a bed 22. The bed 22 is disposed on a top surface of the base 21 and extends along an axial direction of a virtual rotation axis L of the lathe 10. The front surface of the base 21 is provided with a feed limit rod 23 along the axial direction of the virtual rotary shaft L. The feed limit rod 23 is provided with a first stop 24 and a second stop 25, the first stop The second stopper 25 and the second stopper 25 are movable relative to the feed limit rod 23 in the axial direction of the virtual rotary shaft L.

3 to FIG. 6 is a perspective exploded view and a cross-sectional structural view of a conventional lathe bed saddle with automatic lateral feeding and retracting functions according to the present invention. The cutter slide 30 includes a bed saddle 31, a mattress 32 and a lateral slide 33, and the saddle 31 is movable on the bed 22 along the axial direction of the virtual rotary axis L. The mattress 32 is coupled to the bed saddle 31 and the mattress 32 is located on the front surface of the base 21, and the lateral slider 33 is movable in the radial direction of the virtual rotation axis L relative to the bed saddle 31. The top surface of the saddle 31.

A lateral feed screw 311 is disposed in the axial direction of the first virtual rotary shaft L1. The first virtual rotary shaft L1 extends in a radial direction of the virtual rotary shaft L. The transverse feed screw 311 is When the virtual rotating shaft L1 is rotated with respect to the bed saddle 31, the lateral sliding plate 33 can be synchronously moved along the radial direction of the virtual rotating shaft L relative to the saddle 31. The transverse feeding screw 311 is synchronously rotated to provide a slave The moving gear 312 is a spur gear.

The bed saddle 31 is provided with a servo motor 313 along the axial direction of a second virtual rotating shaft L2. The second virtual rotating shaft L2 and the virtual rotating shaft L are parallel to each other. The servo motor 313 has a driving shaft 314, and the driving shaft 314 Along the axial direction of the second virtual rotating shaft L2, the driving shaft 314 is sleeved with a driving gear 315, and the driving gear 315 is rotatable about the second virtual rotating shaft L2. The driving gear 315 is a helical gear. .

The bed saddle 31 is provided with an intermediate shaft 316 along the axial direction of a third virtual rotating shaft L3. The third virtual rotating shaft L3 and the first virtual rotating shaft L1 are parallel to each other, and the third virtual rotating shaft L3 and the second virtual rotating shaft L2 are parallel to each other. The intermediate shaft 316 is synchronously rotatably sleeved with a first idler pulley 317 and a second idler pulley 318. The first idler pulley 317 and the drive gear 315 are engaged with each other, and the second idler pulley 318 and the slave The moving gears 312 are meshed with each other. The first idler gear 317 is a helical gear, and the second idler gear 318 is a spur gear. The driving gear 315 can drive the driven wheel through the first idler gear 317 and the second idler gear 318. Gear 312 rotates.

The bed 32 is different from the side of the bed 20 with a thread cutting half-nut control lever 321 and an automatic feed control lever 322. The thread cutting half-nut control lever 321 is connected with a first The fluid pressure device 323 can drive the thread cutting half-nut control rod 321 to be connected. The automatic feed control rod 322 is connected with a second fluid pressure device 324. The second fluid pressure device 324 is connected. The automatic feed control lever 322 can be moved, and the first fluid pressure device 323 and the second fluid pressure device 324 are pneumatic cylinders.

The bed 32 is connected to a first limit switch 325 and a second limit switch 326. The first limit switch 325 and the second limit switch 326 are located between the first stop 24 and the second stop 25.

The tool slide 30 is further provided with a controller 34 fixedly connected to the top surface of the saddle 31. The controller 34 and the servo motor 313 are electrically connected to each other, and the controller 34 can control the servo motor. The controller 314 is rotated or stopped, and the controller 34 is simultaneously electrically connected to the first fluid pressure device 323, the second fluid pressure device 324, the first limit switch 325, and the second limit switch 326.

Please refer to FIG. 7 to FIG. 10 for further use of the conventional lathe having the functions of automatic lateral feeding and retracting. When the lathe 10 cuts the workpiece 90, the controller 34 can be operated to activate the servo motor 313 to rotate the lateral feed screw 311, and the lateral slide 33 is moved to complete the lateral feed operation.

When the user wants to perform the work of cutting the thread, the first block 24 and the second block 25 can be first moved to the appropriate position to control the cutting stroke length, and the control program is input to the controller 34, the controller 34 can control the lathe 10 to perform the cutting thread. When the control program is operated, the controller 34 activates the servo motor 313 to drive the lateral slide 33 to make the tool 91 perform the lateral feed. When the cutter 91 reaches the predetermined depth, the controller 34 stopping the servo motor 313 and controlling the first fluid pressure device 323 to move the thread cutting half-nut control lever 321 to the engaged position (as shown in FIG. 9), the saddle 31 along the axis of the virtual rotation axis L Moving forward in the direction of the workpiece 90 causes the cutter 91 to begin the stroke of the cutting thread (as shown in Figure 10).

Please refer to FIG. 11 to FIG. 14 for further use of the conventional lathe having the functions of automatic lateral feeding and retracting. When the first limit switch 325 contacts the first block 24, the controller 34 controls the first fluid pressure device 323 to move the thread cutting half-nut control lever 321 to the release position (as shown in FIG. 11). And the controller 34 activates the servo motor 313 to drive the lateral slide 33 to retract the cutter 91 (as shown in FIG. 12). After the lateral slide 33 is retracted to the predetermined position, the controller 34 controls the second fluid pressure device 324. The automatic feed control lever 322 is moved to the retracting position, and the saddle 31 is moved in the direction away from the workpiece 90 in the axial direction of the virtual rotary shaft L (as shown in FIG. 13).

When the second limit switch 326 contacts the second stop 25, the controller 34 controls the second fluid pressure device 324 to move the automatic feed control lever 322 to the free position, and the bed saddle 31 stops moving to make the lathe 10 returns to the original state (as shown in FIG. 14). If the workpiece 90 has not been cut yet, the controller 34 activates the servo motor 313 to drive the transverse slide 33 to cause the cutter 91 to perform the lateral feed, and thus the cycle until the workpiece 90 is cut. carry out.

The lathe 10 drives the transverse feed screw 311 to rotate by the servo motor 313 through the first idler pulley 317 and the second idler 318, so that the lathe 10 can control the lathe through the controller 34 in a program controlled manner. The lateral feed of 10 is quite convenient, and the control system of the lathe 10 can be directly applied to a conventional lathe, so that the conventional lathe can be controlled by a program.

The lathe 10 simultaneously cooperates with the first fluid pressure device 323, the second fluid pressure device 324, the first limit switch 325 and the second limit switch 326. When the controller 34 is set, the lathe 10 can directly The thread cutting operation is performed until the thread is completed, and the function of the automatic tooth is provided.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The conventional lathe having the functions of automatic lateral feeding and retracting according to the invention, wherein the lathe comprises a bed base and a cutter slide seat, the bed base comprises a base and a bed set, wherein the bed set is provided a top surface of the base and the bed extends axially along a virtual axis of rotation of the lathe, the tool slide including a bed saddle and a transverse slide, the saddle being capable of opposing the axial direction of the virtual axis of rotation a bed seat is disposed on a top surface of the bed, and the horizontal sliding plate is movable along a radial direction of the virtual rotating shaft relative to the bed saddle on a top surface of the saddle, the saddle is along a first virtual rotating shaft a transverse feed screw is axially disposed, the first virtual rotating shaft extends in a radial direction of the virtual rotating shaft, and the transverse feeding screw can synchronously drive the horizontal sliding plate with respect to the first virtual rotating shaft. Moving along the radial direction of the virtual axis of rotation relative to the saddle, the transverse infeed screw is synchronously rotatably sleeved with a driven gear, the saddle is provided with a servo motor in the axial direction of a second virtual rotating shaft, the servo Motor has one a driving shaft extending along an axial direction of the second virtual rotating shaft, wherein the driving shaft is synchronously rotatably sleeved with a driving gear, and the driving gear is rotatable about the second virtual rotating shaft, and the driving gear can drive the driving shaft The driven gear rotates, the cutter slide is provided with a controller, the controller and the servo motor are electrically connected to each other, the controller can control the servo motor to rotate or stop, and the lathe drives the transverse feed by the servo motor The rotation of the screw allows the lathe to control the lateral feed of the lathe through program control by the controller.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10‧‧‧ lathe
20‧‧‧ Bed seat
21‧‧‧Base
22‧‧‧ Beds
23‧‧‧Infeed limit rod
24‧‧‧First stop
25‧‧‧second stop
30‧‧‧Tools slide
31‧‧‧ bed saddle
311‧‧‧Horizontal feed screw
312‧‧‧ driven gear
313‧‧‧Servo motor
314‧‧‧Active shaft
315‧‧‧Drive gear
316‧‧‧Intermediate axis
317‧‧‧First idler
318‧‧‧Second idler
32‧‧‧ Beds
321‧‧‧Thread cutting semi-closed nut lever
322‧‧‧Automatic feed control lever
323‧‧‧First fluid pressure device
324‧‧‧Second fluid pressure device
325‧‧‧First limit switch
326‧‧‧second limit switch
33‧‧‧ Horizontal skateboarding
34‧‧‧ Controller
90‧‧‧Workpiece
91‧‧‧Tools
L‧‧‧Virtual Rotary Axis
L1‧‧‧The first virtual shaft
L2‧‧‧Second virtual shaft
L3‧‧‧ third virtual shaft

Figure 1 is a perspective view of a conventional lathe having an automatic lateral feed and retraction function according to the present invention. Fig. 2 is a front view of a conventional lathe having an automatic lateral feed and retraction function according to the present invention. Fig. 3 is a perspective exploded view of a conventional lathe bed saddle with automatic lateral feeding and retracting functions according to the present invention. Fig. 4 is a perspective exploded view of a conventional lathe bed saddle with automatic lateral feeding and retracting functions according to the present invention. Figure 5 is a cross-sectional structural view of a conventional lathe bed saddle with automatic lateral feeding and retracting functions according to the present invention. Fig. 6 is a partially enlarged sectional structural view showing a conventional lathe bed saddle having an automatic lateral feeding and retracting function according to the present invention. Fig. 7 is a view showing the state of use of the conventional lathe having the functions of automatic lateral feeding and retracting according to the present invention. Fig. 8 is a view showing the state of use of the conventional lathe having the functions of automatic lateral feeding and retracting according to the present invention. Fig. 9 is a view showing the state of use of the conventional lathe cutting process with automatic lateral feeding and retracting functions according to the present invention. Fig. 10 is a view showing the state of use of the conventional lathe cutting process with automatic lateral feeding and retracting functions according to the present invention. Figure 11 is a view showing the state of use of the conventional lathe retracting process with automatic lateral feeding and retracting functions according to the present invention. Fig. 12 is a view showing the state of use of the conventional lathe retracting process with automatic lateral feeding and retracting functions according to the present invention. Figure 13 is a view showing the state of use of the conventional lathe retracting process with automatic lateral feeding and retracting functions according to the present invention. Figure 14 is a view showing the state of use of the conventional lathe retracting process with automatic lateral feeding and retracting functions according to the present invention.

31‧‧‧ bed saddle

311‧‧‧Horizontal feed screw

312‧‧‧ driven gear

313‧‧‧Servo motor

314‧‧‧Active shaft

315‧‧‧Drive gear

317‧‧‧First idler

318‧‧‧Second idler

L1‧‧‧The first virtual shaft

L2‧‧‧Second virtual shaft

L3‧‧‧ third virtual shaft

Claims (5)

A conventional lathe having an automatic lateral feeding and retracting function includes: a bed base including a base and a bed set, the bed set is disposed on a top surface of the base and the bed Along the axial extension of a virtual rotating shaft of the lathe, the front surface of the base is provided with a feed limit rod along the axial direction of the virtual rotary shaft, and the feed limit rod is provided with a first stop and a second a stop block, the first stop block and the second stop block are movable relative to the feed limit rod along an axial direction of the virtual rotary shaft; a cutter slide, the cutter slide includes a bed saddle, a mattress and a lateral sliding plate, the saddle is movable on the top surface of the bed relative to the bed in the axial direction of the virtual rotating shaft, the bed is connected to the bed and the bed is located on the front of the base, a lateral sliding plate is movably disposed on a top surface of the saddle in a radial direction of the virtual rotating shaft relative to the saddle, and a lateral feeding screw is disposed in the saddle in a direction of a first virtual rotating shaft, the first a virtual axis extending along a radial direction of the virtual axis of rotation When the rod rotates relative to the saddle with the first virtual rotating shaft as a center, the horizontal sliding plate can be synchronously moved along the radial direction of the virtual rotating shaft relative to the saddle, and the transverse feeding screw synchronously rotates with a driven gear The saddle is provided with a servo motor in the axial direction of a second virtual rotating shaft. The servo motor has a driving shaft extending along the axial direction of the second virtual rotating shaft, and the driving shaft is synchronously rotated and sleeved. a driving gear, the driving gear is rotatable about the second virtual rotating shaft, the driving gear can drive the driven gear to rotate, and the bed is provided with a thread cutting half-joint nut on a side different from the bed seat a control rod and an automatic feed control rod, the thread cutting half-nut control rod is connected with a first fluid pressure device, and the first fluid pressure device can drive the thread cutting half-nut control rod to move, the automatic feed The knife control rod is connected with a second fluid pressure device, and the second fluid pressure device can drive the automatic feed control rod to move, and the mattress is connected with a first pole A limit switch and a second switch, the first limit switch located between the first stopper and the second stopper and the second limit switch Between the blocks, the tool slide is provided with a controller electrically connected to the servo motor, the controller can control the servo motor to rotate or stop, and the controller simultaneously and the first fluid pressure device The second fluid pressure device is electrically connected, the controller is electrically connected to the first limit switch and the second limit switch at the same time; the lathe can perform the following actions in sequence and repeat the cycle, the controller starts the servo motor to drive the horizontal slide plate Advancing, the controller controls the first fluid pressure device to move the thread cutting half-nut control lever to the meshing position, and when the first limit switch contacts the first block, the controller controls the first fluid pressure device Driving the thread cutting half-nut control lever to move to the release position, the controller starts the servo motor to drive the lateral sliding plate to retreat, and the controller controls the second fluid pressure device to move the automatic feeding control rod to the retracting position When the second limit switch contacts the second block, the controller controls the second fluid pressure device to drive the automatic feed control lever Scroll to the free position. The conventional lathe according to claim 1, wherein the saddle is provided with an intermediate shaft along an axial direction of a third virtual rotating shaft, and the intermediate shaft is synchronously rotated to have a first An idler pulley and a second idler gear, the first idler gear and the drive gear mesh with each other, the second idler gear and the driven gear mesh with each other, the drive gear can pass through the first idler gear and the first idler gear The two idlers drive the driven gear to rotate. The conventional lathe having the automatic lateral feeding and retracting functions according to claim 2, wherein the second virtual rotating shaft and the virtual rotating shaft are parallel to each other, the third virtual rotating shaft and the first virtual rotating shaft are parallel to each other and the first The three virtual rotating shaft intersects the second virtual rotating shaft, the driven gear is a spur gear, the driving gear is a helical gear, the first idler gear is a helical gear, and the second idler gear is a spur gear. A conventional lathe having an automatic lateral feed and retraction function according to any one of claims 1 to 3, wherein the first fluid pressure device and the second fluid pressure device are pneumatic cylinders. A conventional lathe having the automatic lateral feed and retract function as claimed in claim 4, wherein the controller is fixedly coupled to the top surface of the saddle.