CN103381487A - Semi-automatic back-tool lathe with lead linkage between central carriage and molding tool rest - Google Patents

Abstract

The invention relates to a semi-automatic back-knife lathe in which the center carriage is linked with the lead of the forming tool holder, including a bed, a main shaft top fork, a tailstock thimble, a center carriage, and a rough tool holder, corresponding to the other side of the center carriage. A forming tool holder is installed at the rear end of the bed, and the center carriage slides and sits on the front end of the bed through the center sliding assembly, and an oil cylinder that drives the center sliding assembly to slide along the slide rail is fixed on one side of the bed, and a lifting assembly is installed at the rear end of the bed , the lifting component is connected with a guide rail seat, and the guide rail seat is provided with guide rails extending along the front and rear ends of the bed. The slide seat on the guide rail is provided with a tool rest backing plate, and the forming tool post is installed on the tool post back plate in an inclined manner. The guide slide rail is fixed on the tool rest support plate on one side of the tool holder, and the center carriage extends toward the direction of the guide slide rail with a guide support arm, which is slidingly connected with the guide slide rail through the guide slide seat. Its structure is simple and reasonable, and the rough turning and finishing turning can be realized synchronously through the mechanical structure, the structure is stable, and the machining accuracy is high.

Description

A semi-automatic back-knife lathe with linkage between the center carriage and the lead of the forming tool holder

technical field

The invention relates to the technical field of a semi-automatic back-knife lathe, in particular to a semi-automatic back-knife lathe in which a center carriage and a forming tool holder lead are linked.

Background technique

At present, the forming tool holder and the center carriage of the semi-automatic back knife lathe are generally equipped with a separate power system for control. The rough tool holder is installed on the center carriage. The blank tool holder performs rough turning on the workpiece for the first time, and at the same time, the forming tool holder performs forming turning immediately behind, thus completing the turning process of the workpiece. Due to the existence of two sets of independent feeding devices, the synchronization of this structure is poor. Moreover, the manufacturing cost is high and the structure is complex.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, and improve a center carriage and forming tool rest guide with simple and reasonable structure, low manufacturing cost, high machining accuracy, stable performance, and good synchronization between rough turning and finishing turning. Process linkage semi-automatic back tool lathe.

The technical solution adopted by the present invention to solve its technical problems is:

A semi-automatic back tool lathe in which the center carriage is linked with the lead of the forming tool holder, including a bed, on both sides of the bed are installed a spindle top fork and a tailstock thimble for clamping the two ends of the workpiece, and the gap between the spindle top fork and the tailstock thimble The front end of the bed is equipped with a center carriage, and the center carriage is provided with a central perforation suitable for the workpiece to pass through. The rough tool holder is installed on the center carriage, and the rear end of the bed corresponding to the other side of the center carriage is equipped with a forming The tool holder is characterized in that the center slide is seated on the front end of the bed through the slide of the center slide assembly, an oil cylinder that drives the center slide assembly to slide along the slide rail is fixed on one side of the bed, and a lifting assembly is installed at the rear end of the bed to lift The component is connected with a guide rail seat, and the guide rail seat is provided with a guide rail extending along the front and rear ends of the bed, and a knife rest rest is installed on the guide rail. The guide slide rail is fixed on the tool rest plate on one side, and the guide support arm is extended from the center carriage to the guide slide rail. The guide support arm is slidingly connected with the guide slide rail through the lead slide seat. When the drive center carriage slides along the slide rail, the guide slide seat on the lead support arm slides along the guide slide rail, driving the forming tool holder to slide along the guide rail, so that the forming knife on the forming tool holder feeds and cuts toward the workpiece.

In the semi-automatic back tool lathe with this structure, the center carriage and the tool rest support plate with the forming tool rest are connected as a whole through the lead support arm and the guide slide rail, so that the sliding feed of the forming tool on the forming tool rest does not It is necessary to install a power device to save manufacturing costs. While the center carriage slides, the lead support arm slides along the guide slide rail through the guide slide seat, thereby driving the forming tool holder to slide along the guide rail to realize the forming on the forming tool holder. The feed turning process of the tool on the workpiece has a simple and reasonable structure, and the synchronous turning of the rough car and the finish car is realized through the mechanical structure, the structure is stable, and the machining accuracy is high.

The present invention can also adopt the following technical measures to solve:

The center sliding assembly includes a center carriage carriage, a center carriage carriage cover, and a center carriage slide seat. The top surface and side surfaces of the front end of the bed are respectively fixed with top surface guide rails and side guide rails, and the center carriage carriage slides pass through the The top slider and the side slider slide are set on the top guide rail and the side guide rail, the center carriage carriage is fixed on the top surface of the center carriage carriage, and the center carriage carriage cover is slidably connected to the center carriage carriage carriage , the lifting and sliding of the center carriage is connected to the vertical surface of the center carriage carriage cover; the connection between the center carriage carriage and the center carriage carriage cover enables the center carriage to slide forward and backward along the front and rear ends of the bed, and the top The setting of the surface guide rail and the side guide rail makes the slide seat of the center carriage more stable when sliding, and the force is more stable, which effectively improves the turning precision. The center carriage can also be lifted up and down along the vertical surface of the carriage cover of the center carriage. adjust.

The lifting assembly includes a lifting carriage, a lifting box, a lifting screw, and a worm gear box. The rear side of the bed is horizontally provided with a guide rail boss that slides and cooperates with the lifting carriage. On the lifting carriage, the guide rail seat is fixed on the top of the lifting box, and the worm gear box is also equipped with a lifting adjustment hand wheel; the setting of the lifting component can make the knife rest rest on the plate to realize the up and down adjustment, and the lifting box slides and lifts and connects to the lifting carriage. , When adjusting, the worm gear box is fixed on the lifting box and connected with the lifting screw rod. You only need to turn the lifting adjustment handwheel to make the lifting box rise or fall along the lifting screw rod to realize the up and down lifting of the forming tool holder.

The tailstock thimble is arranged on one side of the bed through the tailstock, and the tailstock cylinder is fixed on the tailstock to drive the tailstock thimble; the tailstock cylinder drives the tailstock thimble to expand and contract, and tightens one end of the workpiece.

The other side of the bed is provided with a spindle box, the spindle top fork is connected to the spindle box through the rotation of the spindle, and the other end of the spindle is connected to the spindle motor installed at the bottom of the bed; The connection of the belt and the pulley realizes the power output rotation of the top fork of the main shaft.

The lead support arm is composed of a support arm body and a telescopic rod. One end of the support arm body is connected to the center carriage, and the other end is provided with a vertical sleeve. The telescopic rod is telescopically adjustable and sleeved on the vertical sleeve. The seat is installed at the bottom of the telescopic rod; the function of the telescopic rod is to adjust the height of the lead slide seat to adapt to the lifting adjustment of the tool rest against the plate.

The tool rest support plate on one side of the forming tool rest is fixed with a guide slide rail parallel to the forming knife rest; this structure can make the feed rate of the lead slide seat more uniform when sliding along the guide slide rail , The feed adjustment is easier to adjust.

At least two drag frame assemblies are installed on the bed between the main shaft top fork and the tailstock thimble, each support frame assembly includes a fixed frame, a lifting frame and a lifting cylinder, and the fixed frame is fixed on the main shaft top fork and the tailstock On the groove between the thimbles, the lifting frame is vertically slidably connected to the fixed frame, and the lifting cylinder is installed at the bottom of the fixed frame and connected with the lifting drive of the lifting frame; this structure can support the workpiece when feeding, and the lifting frame There are supporting grooves on the top.

The beneficial effects of the present invention are:

The present invention relates to a semi-automatic back knife lathe in which the center carriage is linked with the lead of the forming tool holder. The center carriage and the tool rest backing plate on which the forming tool holder is installed are connected as a whole through the lead support arm and the guide slide rail, so that The sliding feed of the forming tool on the forming tool holder does not require the installation of a power device, which saves manufacturing costs. While the center carriage slides, the lead support arm slides along the lead slide rail through the lead slide seat, thereby driving the forming knife The frame slides along the guide rail to realize the feeding turning process of the workpiece by the forming tool on the forming tool holder. Its structure is simple and reasonable, and the rough turning and finishing turning are realized synchronously through the mechanical structure. The structure is stable and the machining accuracy is high.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a structural schematic diagram of another angle of the present invention.

Fig. 3 is a structural schematic diagram of another angle of the present invention.

Fig. 4 is a structural schematic diagram of another angle of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 4, a semi-automatic back tool lathe in which the center carriage is linked with the lead of the forming tool rest includes a bed 1, and the two sides of the bed 1 are equipped with a spindle top fork 3 for clamping the two ends of the workpiece 2 and The tailstock thimble 4, the front end of the bed 1 between the spindle top fork 3 and the tailstock thimble 4 is equipped with a center carriage 5, and the center carriage 5 is provided with a central perforation 501 suitable for the workpiece 2 to pass through. The center carriage 5 A rough tool holder 6 is installed on it, and a forming tool holder 7 is installed on the rear end of the bed 1 corresponding to the other side of the center carriage 5. It is characterized in that the center carriage 5 slides and sits on the bed through the center sliding assembly The front end of the bed 1 and the side of the bed 1 are fixed with a drive center sliding assembly 9 and an oil cylinder 10 that slides along the front end of the bed 1. A lifting assembly 11 is installed at the rear end of the bed 1. A guide rail 13 extending along the front and rear ends of the bed 1 is provided on the top, and a knife rest backing plate 14 is slidably seated on the guide rail 13. The forming knife rest 7 is installed on the knife rest backing plate 14 in an inclined manner, and one side of the forming knife rest 14 The guide slide rail 15 is fixed on the tool holder back plate 14, and the center carriage 5 extends toward the guide slide rail 15 with a guide support arm 16, and the guide support arm 16 passes through the guide slide seat 17 and the guide slide rail. 15 sliding connection, when the oil cylinder 10 drives the center carriage 5 to slide along the front end of the bed 1, the guide slide seat 17 on the lead support arm 16 slides along the guide slide rail 15, driving the forming tool holder 7 to slide along the guide rail 13, Make the forming knife on the forming tool rest 7 feed and cut towards the workpiece 2 direction.

In the semi-automatic back knife lathe adopting this structure, the center carriage 5 and the tool rest backing plate 14 on which the forming tool rest 7 is installed are connected as a whole through the lead support arm 16 and the lead slide rail 15, so that the forming on the forming tool rest 7 The sliding feed of the tool does not require the installation of a power device, which saves manufacturing costs. While the center carriage 5 is sliding, the lead support arm 16 slides along the lead slide rail 15 through the lead slide seat 17, thereby driving the forming tool holder 7 Sliding along the guide rail 13, the forming tool on the forming tool holder 7 can feed and turn the workpiece 2. Its structure is simple and reasonable, and the rough turning and finishing turning can be realized synchronously through the mechanical structure.

As a more specific implementation of this embodiment:

The center slide assembly 9 includes a center carriage carriage 901, a center carriage carriage cover 902, and a center carriage slide 903. The top surface 101 and the side surface 102 of the front end of the bed 1 are respectively fixed with a top surface guide rail 905 and a side guide rail. 906, the center carriage sliding seat 903 slides and sits on the top surface guide rail 905 and the side guide rail 906 through the top surface slider 905-1 and the side slide block 906-1 respectively, and the center carriage drag plate 901 is fixed on the center carriage slide The top surface of the seat 903, the center carriage carriage cover 902 is slidably connected on the center carriage carriage 901, and the center carriage 5 lifts and slides and is connected on the vertical surface 902-1 of the center carriage carriage cover 902; the center carriage drags The connection between the plate 901 and the center carriage drag plate cover 902 enables the center carriage 5 to realize front and rear sliding adjustment along the front and rear ends of the bed 1, and the setting of the top surface guide rail 905 and the side guide rail 906 makes the center carriage slide seat 903 slide More stable, more stable force, effectively improve the turning precision, the center carriage 5 can also realize up and down adjustment along the 902 vertical plane 902-1 of the carriage carriage cover of the center carriage.

The lifting assembly 11 includes a lifting pallet 1101, a lifting box 1102, a lifting screw rod 1103, and a worm gear box 1104. The rear end side of the bed 1 is horizontally provided with a guide rail boss 103 slidingly matched with the lifting pallet 1101, and the lifting box 1102 passes through The lifting screw 1103 and the worm gear box 1104 are slidingly lifted and connected on the lifting pallet 1101, the guide rail seat 12 is fixed on the top of the lifting box 1102, and the lifting adjustment handwheel 1105 is also installed on the worm gear box 1104; the setting of the lifting assembly 11 can make the knife The frame back plate 14 realizes the up and down adjustment. The lifting box slides and lifts and is connected to the lifting pallet 1101. When adjusting, the worm gear box 1104 is fixed on the lifting box 1102 and connected with the lifting screw 1103. Only need to turn the lifting adjustment handwheel 1105, The lift box 1102 is raised or lowered along the lift screw rod 1103 to realize the up and down lift of the forming knife rest 7 .

The tailstock thimble 4 is arranged on one side of the bed through the tailstock 18, and the tailstock cylinder 19 for driving the tailstock thimble 4 is fixed on the tailstock 18; the tailstock cylinder 19 drives the tailstock thimble 4 to stretch and tighten one end of the workpiece 2 .

The other side of the bed 1 is provided with a spindle box 20, the spindle jack 3 is connected to the spindle box 20 through the rotation of the spindle 21, and the other end of the spindle 20 is driven and connected to the spindle motor 22 installed at the bottom of the bed 1; 3 is used as a driving shaft to realize the power output rotation of the main shaft top fork 3 through the connection of the main shaft motor 22, belts, pulleys and other components.

The lead support arm 16 is composed of a support arm body 1601 and a telescopic rod 1602. One end of the support arm body 1601 is connected to the center carriage 5, and the other end is provided with a vertical sleeve 1603. The telescopic rod 1602 is telescopically adjustable and sleeved on a vertical On the sleeve 1603, the lead slide seat 17 is installed at the bottom end of the telescopic rod 1602;

The knife rest on one side of the forming knife rest 7 is fixed with the lead slide rail 15 which is arranged parallel to the forming knife rest 7; When the seat 17 slides along the guide rail 15, its feed can be more uniform, and the feed adjustment is easier to adjust.

At least two dragging frame assemblies 23 are installed on the bed 1 between the main shaft top fork 3 and the tailstock thimble 4, and each bracket assembly 23 includes a fixed frame 2301, a lifting frame 2302, and a lifting cylinder 2303. The frame 2301 is fixed on the groove 104 between the main shaft top fork 3 and the tailstock thimble 4, the lifting frame 2302 is vertically slidably connected on the fixed frame 2301, and the lifting cylinder 2303 is installed on the bottom of the fixed frame 2301, and is connected with the lifting frame 2302 lift drive connection; this structure can support the workpiece 2 when feeding, and the lifting frame 2302 is provided with a supporting groove 2302-1 for supporting the workpiece 2.

The rough tool rest 6 is installed on one side of the center slide 5, and the forming tool rest 7 is arranged on the other side of the center slide 5. During the sliding process of the center slide 5, the workpiece 2 is firstly pressed by the rough tool rest 6. Cutting, followed by forming knife rest 7 to carry out fine cutting molding.

The central through hole 501 can be installed with a bearing, and in the process of sliding with the central carriage 5, it contacts with the workpiece 2 to assist the rotation.

The specific embodiments described above are only preferred embodiments of the present invention, and all equivalent designs made according to the patent scope of the present invention should be covered by the technology of the present invention.

Claims (8)

1. the semi-automatic back knife lathe of a center balladeur train and forming cutter rest helical pitch interlock, comprise lathe bed (1), lathe bed (1) both sides are equipped with mainshaft fork (3) and the tailstock center (4) at clamping work pieces (2) two ends, lathe bed (1) front end between mainshaft fork (3) and tailstock center (4) is equipped with center balladeur train (5), offer on center balladeur train (5) and be suitable for the central hole (501) that workpiece (2) passes, crude green body knife rest (6) is installed on center balladeur train (5), lathe bed (1) rear end of corresponding center balladeur train (5) opposite side is equipped with forming cutter rest (7), it is characterized in that, described center balladeur train (5) slides to sit by central slide assembly (9) and is located at lathe bed (1) front end, lathe bed (1) one side is fixed with and drives the oil cylinder (10) that central slide assembly (9) slides along lathe bed (1) front end, lathe bed (1) rear end is equipped with lifting assembly (11), be connected with track base (12) on lifting assembly (11), be provided with the guide rail (13) that arranges along lathe bed (1) front and back end extension on track base (12), the upper seat that slides of guide rail (13) is provided with knife rest backup plate (14), forming cutter rest (7) is tilting and is arranged on knife rest backup plate (14), be fixed with helical pitch slide rail (15) on the knife rest backup plate (14) of forming cutter rest (14) one sides, center balladeur train (5) is extended with helical pitch supporting arm (16) toward helical pitch slide rail (15) direction, helical pitch supporting arm (16) is slidably connected by helical pitch slide (17) and helical pitch slide rail (15), when oil cylinder (10) driving center balladeur train (5) slides along lathe bed (1) front end, helical pitch slide (17) on helical pitch supporting arm (16) slides along helical pitch slide rail (15), driving forming cutter rest (7) slides along guide rail (13), forming cutter on forming cutter rest (7) is cut toward workpiece (2) direction feeding.

according to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, described central slide assembly (9) comprises center balladeur train planker (901), center balladeur train planker lid (902), center balladeur train slide (903), the end face (101) of lathe bed (1) front end and side (102) are fixed with respectively end face guide rail (905) and side guide (906), center balladeur train slide (903) slides to sit by end face slide block (905-1) and side slide block (906-1) respectively and is located on end face guide rail (905) and side guide (906), center balladeur train planker (901) is fixed on center balladeur train slide (903) end face, center balladeur train planker lid (902) is slidably connected on center balladeur train planker (901), center balladeur train (5) lifting is slidably connected on the vertical plane (902-1) of center balladeur train planker lid (902).

according to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, described lifting assembly (11) comprises lifting planker (1101), elevator chamber (1102), elevating screw (1103), worm gear case (1104), lathe bed (1) side, rear end laterally is provided with the guide rail boss (103) that is slidably matched with lifting planker (1101), elevator chamber (1102) is connected on lifting planker (1101) by elevating screw (1103) and worm gear case (1104) slip lifting, track base (12) is fixed on elevator chamber (1102) top, lift adjustment handwheel (1105) also is installed on worm gear case (1104).

According to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, described tailstock center (4) is arranged on lathe bed one side by tailstock (18), is fixed with the tailstock cylinder (19) that drives tailstock center (4) on tailstock (18).

According to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, described lathe bed (1) opposite side is provided with main spindle box (20), mainshaft fork (3) is rotatably connected on main spindle box (20) by main shaft (21), and the spindle motor (22) of main shaft (20) other end bottom being arranged on lathe bed (1) drives and be connected.

According to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, described helical pitch supporting arm (16) is comprised of support arm body (1601) and expansion link (1602), support arm body (1601) one ends are connected with center balladeur train (5), the other end is provided with vertical sleeve (1603), expansion link (1602) is the telescopic adjustment formula and is set on vertical sleeve (1603), and helical pitch slide (17) is arranged on expansion link (1602) bottom.

according to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, on lathe bed (1) between described mainshaft fork (3) and tailstock center (4), at least two material drag frame components (23) are installed, each material supporting rack assembly (23) comprises fixed mount (2301), crane (2302) and lift cylinder (2303), fixed mount (2301) is fixed on groove (104) between mainshaft fork (3) and tailstock center (4), crane (2302) is vertical configuration and is slidably connected on fixed mount (2301), lift cylinder (2303) is arranged on fixed mount (2301) bottom, and be connected with crane (2302) lifting driving.

According to claim 1 center balladeur train and forming cutter rest helical pitch the interlock semi-automatic back knife lathe, it is characterized in that, be fixed with the helical pitch slide rail (15) that be arranged in parallel with forming cutter rest 7 on the knife rest backup plate (14) of described forming cutter rest (7) one sides.

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