A clamping base for lathe and processing lathe

Abstract

The present invention relates to the technical field of lathes, and in particular to a clamping base for lathes and a processing lathe. The processing lathe comprises a clamping base, a frame mounted above the clamping base, and two tool seats, wherein the tool seats are used to fix the tools and are slidably connected to the frame, and the frame drives the tool seats to move; the clamping base comprises a shell with at least two sliding tracks symmetrically arranged on the top, a slide seat embedded in the sliding tracks, a transmission rod, a telescopic member and a positioning assembly arranged at the center position of the top of the shell, one end of the transmission rod is rotatably connected to the slide seat, and the other end of the transmission rod is rotatably connected to the telescopic member, driving the telescopic member to telescope and move the slide seat along the sliding track, and driving the positioning assembly to fix the slide seat after the slide seat is engaged with the clamped object. The telescopic member arranged at the center position of the present invention utilizes the telescopic member to drive the slide seats to slide symmetrically along the center, and ensures that the fixed position of the clamped object can always be centered while achieving the clamping and fixing of the clamped object.

Description

Technical Field

[0001] The invention relates to the technical field of lathes, in particular to a clamping base for a lathe and a processing lathe. Background Art

[0002] Among lathes, there is a double-column vertical lathe, also known as a double-axis vertical lathe, which is a commonly used metal processing equipment. Because it has a double tool holder structure that can be operated separately, it can realize multiple processes of workpiece processing simultaneously, but the processing processes working simultaneously will result in a limited fixed position of the workpiece, resulting in the operator needing to loosen and retighten the bolts or clamps one by one after the workpiece is replaced, which not only increases the labor intensity of the operator but also prolongs the switching time of the processing task. In addition, the design of some bases may not be flexible enough to adapt to workpieces of different sizes and shapes, which may also lead to additional adjustment and calibration work when switching processing tasks. Summary of the invention

[0003] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings of the description.

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a clamping base for a lathe and a processing lathe, which have the advantages of flexible clamping method, simple clamping method, precise positioning, no need for additional adjustment and correction of the position of the clamping part, easy installation of the tool head, and automatic switching.

[0005] In a first aspect, the present invention provides a clamping base for a lathe, comprising a housing, a rotary drive assembly, a slide, a transmission rod, a telescopic member, and a positioning assembly. The housing is connected to the rotary drive assembly and rotates under the drive of the rotary drive assembly, at least two slide tracks are symmetrically arranged on the top of the housing, the slide is embedded in the slide tracks, the telescopic member is arranged at the center of the top of the housing, one end of the transmission rod is rotatably connected to the slide, and the other end of the transmission rod is rotatably connected to the telescopic member, the telescopic member is driven to telescope so that the slide moves along the slide track, and when the slide is engaged with the clamped object, the positioning assembly is driven to fix the slide.

[0006] Furthermore, one side of the sliding track is provided with a plurality of embedding channels, and the side wall of the sliding seat is provided with through holes corresponding to the embedding channels. The positioning assembly includes a driving motor and a locking grille, and the locking grille is provided on the other side of the sliding track. The driving motor is connected to the locking grille, and when the sliding seat is engaged with the clamped object, the locking grille is driven to rotate through the through hole and finally inserted into the embedding channel.

[0007] Furthermore, the locking grille is arc-shaped, the driving motor is arranged below the telescopic member, and the driving motor and the locking grille are connected via a connecting rod.

[0008] Furthermore, an air intake passage is connected to a side of the embedded channel away from the sliding track. The air intake passage is located below the embedded channel and connected to an external air intake pipe. The air intake passage blows air into the embedded channel when the locking grille is started and reset.

[0009] Furthermore, the rotary drive assembly includes a base, a bearing, a first rack, a first motor and a first gear. The shell is disposed in the base and is connected through the bearing. The first rack is ringed on the shell. The first motor is disposed on one side of the base. The first motor and the first rack are driven and connected through the first gear.

[0010] Furthermore, a connecting piece is provided on the slide seat, a clamping block is sleeved on the connecting piece, and the clamping block is detachably connected to the connecting piece.

[0011] In a second aspect, the present invention provides a processing lathe, comprising the clamping base described above, and also comprising a frame, a milling cutter seat and a turning tool seat mounted above the clamping base. The milling cutter seat and the turning tool seat are used to fix the corresponding tools and are slidably connected to the frame, and the frame drives the milling cutter seat and the turning tool seat to move. Among them, the turning tool seat includes a lifting shaft, a fixed shell, a switching plate, a tool holder and a pushing assembly, the lifting shaft is slidably connected to the frame, the fixed shell is arranged at one end of the lifting shaft, a first channel and a second channel are vertically intersected in the fixed shell, the switching plate is slidably arranged in the first channel, and at least three fixing holes are arranged on the switching plate, and the fixing holes can detachably fix the tool holder, and the pushing assembly is mounted on the top of the second channel; when the tool holder moves to the intersection of the first channel and the second channel, the pushing assembly moves downward to push the tool holder to move until the bottom of the tool holder extends out from the other end of the second channel.

[0012] Furthermore, the tool holder also includes a second motor and a second gear. Second racks are provided on both sides of the switching plate. The second motor is arranged on one side of the fixed shell and is connected to the second gear through its side wall. The second gear is meshed with the second rack. Starting the second motor causes the switching plate to move.

[0013] Furthermore, a reset frame and a reset spring are provided at the other end of the second channel, and four reset springs connect the reset frame and the second channel. When the tool platform moves downward, it passes through the reset frame and extends out of the second channel.

[0014] Furthermore, a spring ball assembly is symmetrically arranged on the side wall of the fixing hole, and a positioning groove is arranged on the tool platform at a position corresponding to the spring ball assembly. In the absence of external force, the spring ball assembly pops out and engages with the positioning groove.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are:

[0016] The telescopic member of the present invention is arranged at the center position, and the slide seats are driven to slide symmetrically along the center by the telescopic extension of the telescopic member, so as to realize the clamping fixation of the clamped object and ensure that the fixed position of the clamped object can always be centered, thereby reducing the error of manual clamping, eliminating the adjustment and correction steps of the clamped object, and greatly reducing the clamping workload; by setting the positioning component to perform secondary fixation on the slide seat that reaches the target position, the stability of the clamping is greatly improved.

[0017] The spacing of the locking grilles is set according to the size of the standard parts, and the locking grilles are made to fit together with the sliding seat and the embedded channel to fix the sliding seat. The arc-shaped locking grilles and the drive motor located below are selected to reduce the deadweight of the clamping base while ensuring the supporting force of the clamping base; an air intake channel is set at one end of the embedded channel to balance the air pressure when the locking grilles are embedded; at the same time, gas is blown into the embedded channel to prevent waste chips after processing from entering the embedded channel, while giving the locking grilles a thrust to prevent them from getting stuck after being fixed; by setting a detachable clamping block to connect with the sliding seat, different clamping blocks can be selected according to the clamped object to ensure the clamping effect of the clamping block, and an extension column is set to be movably connected with the connecting piece to increase the force of the connecting piece when the clamped object is large.

[0018] The present invention realizes synchronous processing of the clamped object and improves work efficiency by providing a separately movable tool holder; by providing a switching plate that is detachably connected to the tool table and cooperating with a pushing component to realize switching and fixing of the turning tool, its installation and fixing method is simpler and more convenient, and automatic switching is realized.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0020] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment described with reference to various figures and drawings.

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0023] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0025] Figure 1 This is an overall structural diagram of a processing lathe of the present invention;

[0026] Figure 2 It is a front view of the internal structure of the clamping base;

[0027] Figure 3 A three-dimensional diagram of the internal structure of the clamping base;

[0028] Figure 4 A cross-sectional view of the bottom surface of the top of the housing when the clamping base is in an unfixed state of the slide seat;

[0029] Figure 5 A cross-sectional view of the bottom surface of the top of the housing when the clamping base is in a state where the slide is fixed;

[0030] Figure 6 It is a side sectional view of the clamping block of the clamping base being connected to the connecting piece;

[0031] Figure 7 It is a side cross-sectional view of the clamping block of the clamping base being connected with the connecting piece and the extension column;

[0032] Figure 8 is a top sectional view of the clamping base;

[0033] Fig. 9 for Figure 1 A local enlarged view of point A in FIG.

[0034] Fig.10 It is a schematic diagram of the internal structure of the fixed shell;

[0035] Fig.11 It is a structural schematic diagram when the switching plate and the tool holder are separated;

[0036] Fig.12 A side view of the spring-ball assembly.

[0037] Description of main reference numerals: 1. housing; 11-sliding track; 12-embedded channel; 2-sliding seat; 21-through hole; 22-connecting piece; 23-extension column; 3-transmission rod; 4-telescopic piece; 5-positioning assembly; 51-driving motor; 52-locking grille; 53-connecting rod; 6-air intake channel; 7-clamping block; 8-frame; 81-column; 811-first screw assembly; 82-sliding beam; 821-second screw assembly; 9-rotation drive assembly; 91-base; 92-bearing; 93-first rack; 94 -first motor; 95-first gear; 10-milling cutter seat; 101-turning tool seat; 1011-lifting shaft; 1012-fixed shell; 10121-first channel; 10122-second channel; 10123-reset frame; 10124-reset spring; 1013-switching plate; 10131-fixing hole; 10132-second rack; 10133-spring ball assembly; 1014-tool table; 10141-positioning slot; 1015-pushing assembly; 1016-second motor; 1017-second gear. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0039] Reference Figure 1-12 In a first aspect, the present invention provides a clamping base for a lathe, which includes a housing 1, a rotation drive assembly 9, a slide 2, a transmission rod 3, a telescopic member 4 and a positioning assembly 5.

[0040] The housing 1 is connected to the rotation drive assembly 9 and rotates under the drive thereof. The specific connection method is as follows: the rotation drive assembly 9 includes a base 91, a bearing 92, a first rack 93, a first motor 94 and a first gear 95. The housing 1 is arranged in the base 91 and is rotatably connected through the bearing 92. The first rack 93 is annularly arranged on the housing 1, and the first motor 94 is arranged on one side of the base 91. The first motor 94 and the first rack 93 are driven and connected through the first gear 95.

[0041] At least two slide rails 11 are symmetrically arranged on the top of the shell 1. The slide 2 is embedded in the slide rails 11. Both upper and lower sides of the slide rails 11 are provided with convex parts for fixing the slide 2 to ensure that the slide 2 can move along the slide rails 11. The telescopic member 4 is arranged at the center of the top of the shell 1. The driving cylinder of the telescopic member 4 is connected to the top of the shell 1. One end of the transmission rod 3 is rotatably connected to the slide 2. The other end of the transmission rod 3 is rotatably connected to the free end of the telescopic member 4. The telescopic member 4 is driven to extend and retract to move the slide 2 along the slide rail 11. When the slide 2 is engaged with the clamped object, the positioning assembly 5 is driven to fix the slide 2. A plurality of embedded channels 12 are arranged in parallel on one side of the slide rail 11. The embedded channels 12 are formed by drilling holes on the shell 1. The side wall of the slide 2 is provided with through holes 21 corresponding to the embedded channels 12. There are at least two through holes 21 on the slide 2. The spacing between the two through holes 21 is consistent with the spacing between the embedded channels 12. The positioning assembly 5 includes a driving motor 51 and a locking grille 52. The locking grille 52 is preferably in an arc shape. The spacing between the locking grilles 52 is determined according to the standard size of the target clamped object. A cavity is provided in the housing 1 to accommodate the locking grille 52. At the same time, the locking grille 52 is provided on the other side of the slide track 11. The driving motor 51 is connected to the locking grille 52. Specifically, the driving motor 51 is provided below the telescopic member 4. The driving motor 51 and the locking grille 52 are connected by a connecting rod 53. A hole for the connecting rod 53 to move is provided at the bottom of the cavity of the housing 1. When the slide 2 is engaged with the clamped object, the locking grille 52 is driven to rotate through the through hole 21 and finally inserted into the embedded channel 12 to complete the fixing of the slide 2. In order to clean the waste in the channel, an air intake channel 6 is connected to the side of the embedded channel 12 away from the slide track 11. The air intake channel 6 is located below the embedded channel 12 and connected to an external air intake pipe. When the locking grille 52 starts to reset, the air intake channel 6 starts to blow air into the embedded channel 12.

[0042] The slide 2 is provided with a connector 22, and a clamping block 7 is sleeved on the connector 22. The shape of the connector 22 can be non-columnar to prevent the clamping block 7 from rotating. The clamping block 7 is detachably connected to the connector 22. Specifically, a thread is provided on the top of the connector 22. After the clamping block 7 is sleeved on the connector 22, the connector 22 is threadedly connected to the nut to achieve fixation. When targeting large clamping objects, an extension column 23 is detachably connected to the top of the connector 22. A thread is provided on the top of the extension column 23. After the clamping block 7 is sleeved on the extension column 23 and the connector 22, the extension column 23 is threadedly connected to the nut to achieve fixation.

[0043] In a second aspect, the present invention provides a machining lathe, comprising the clamping base described above, and further comprising a frame body 8, a milling cutter seat 10 and a turning tool seat 101 erected above the clamping base.

[0044] The milling cutter seat 10 and the lathe seat 101 are used to fix the corresponding tools and are slidably connected with the frame 8. The frame 8 drives the milling cutter seat 10 and the lathe seat 101 to move. Specifically, the frame 8 includes a column 81 and a slide beam 82. The two columns 81 are respectively arranged on the left and right sides of the clamping base 91. The slide beam 82 is slidably connected with the column 81. The milling cutter seat 10 and the lathe seat 101 are both slidably connected with the slide beam 82. A first screw assembly 811 is arranged between the column 81 and the slide beam 82. The first screw assembly 811 drives the slide beam 82 to slide. A second screw assembly 821 is arranged between the tool seat and the slide beam 82. The second screw assembly 821 drives the tool seat to slide. The screw is used for driving, and the operation is more stable. Among them, the milling cutter seat 10 is a conventional milling cutter fixing seat, and the lathe seat 101 can switch the tool head.

[0045] Compared with the existing method of switching turning tools by rotation, the turning tool holder 101 in the present invention includes a lifting shaft 1011, a fixed shell 1012, a switching plate 1013, a tool platform 1014, a pushing assembly 1015, a second motor 1016 and a second gear 1017. The lifting shaft 1011 is slidably connected to the frame 8 to control the tool head to perform a small range of lifting and lowering work. The fixed shell 1012 is arranged at one end of the lifting shaft 1011, and a first channel 10121 and a second channel 10122 are vertically intersected in the fixed shell 1012. Both sides of the switching plate 1013 are provided with convex strips so that it can be slidably embedded in the first channel 10121. Both sides of the top of the switching plate 1013 are provided with second racks 10132. The second motor 1016 is arranged on one side of the fixed shell 1012 and passes through its side wall to be connected with the second gear 1017. The second gear 1017 is meshed with the second rack 10132. The second motor 1016 is started to move the switching plate 1013. At least three fixing holes 10131 are provided on the switching plate 1013. The fixing holes 10131 can detachably fix the tool platform 1014. The disassembly method can be electromagnet magnetic attraction, or a spring ball assembly 10133 can be symmetrically arranged on the side wall of the fixing hole 10131. A positioning groove 10141 is provided on the tool platform 1014 at a position corresponding to the spring ball assembly 10133. The spring ball assembly 10133 includes a metal ball and a spring. The metal ball is ejected from the side wall of the positioning groove 10141 under the action of the spring. In the absence of external force, the spring ball assembly 10133 pops out and engages with the positioning groove 10141. The pushing assembly 1015 is mounted on the top of the second channel 10122. The pushing assembly 1015 is composed of a connecting plate and a lifting cylinder. The connecting plates are detachably connected to the tool platform 1014 through magnetic attraction. When the tool platform 1014 moves to the intersection of the first channel 10121 and the second channel 10122, the pushing assembly 1015 moves downward to push the tool platform 1014 until the bottom of the tool platform 1014 extends out from the other end of the second channel 10122. In order to prevent the tool platform 1014 from getting stuck when switching, a reset frame 10123 and a reset spring 10124 are provided at the other end of the second channel 10122. Four reset springs 10124 connect the reset frame 10123 and the second channel 10122. When the tool platform 1014 moves downward, it passes through the reset frame 10123 and extends out of the second channel 10122. When the tool platform 1014 moves upward, the spring returns to its original position to separate the tool platform 1014 from the bottom of the second channel 10122.

[0046] Working principle: Select different types of clamping blocks 7 to connect with the slide 2 according to the inner diameter and size of the clamped object, and select the initial position of the slide 2 according to the clamping method of the inner ring clamping or outer ring clamping of the clamped object, then place the clamped object on the top of the shell 1, start the telescopic member 4 to move the slide 2 until the clamped object is fixed, start the drive motor 51 to rotate to make the locking grid 52 pass through the slide 2 for secondary fixation, and then make the tool holder move and work on the surface of the clamped object according to the target input program. Put the required turning tool head into the fixing hole 10131, start the switching plate 1013 to move in the solid shell until the target tool head is at the junction of the first and second channels 10122, start the pushing component 1015 to move downward, and when its connecting plate is connected to the tool table 1014, push the tool table 1014 to leave the fixing hole 10131 and move to the second channel 10122, and then compress the reset frame 10123 to make the tool head extend from the bottom of the second channel 10122.

[0047] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0048] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0049] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A clamping base for a lathe, characterized in that: The invention comprises a housing, a rotary drive assembly, a slide seat, a transmission rod, a telescopic member and a positioning assembly. The housing is connected to the rotary drive assembly and rotates under the drive of the rotary drive assembly. At least two slide tracks are symmetrically arranged on the top of the housing. The slide seat is embedded in the slide tracks. The telescopic member is arranged at the center of the top of the housing. One end of the transmission rod is rotatably connected to the slide seat. The other end of the transmission rod is rotatably connected to the telescopic member. The telescopic member is driven to telescope so that the slide seat moves along the slide track. When the slide seat is engaged with the clamped object, the positioning assembly is driven to fix the slide seat. A plurality of embedding channels are provided on one side of the slide track, and through holes corresponding to the embedding channels are provided on the side wall of the slide seat. The positioning assembly includes a driving motor and a locking grille, and the locking grille is provided on the other side of the slide track. The driving motor is connected to the locking grille, and when the slide seat is engaged with the clamped object, the locking grille is driven to rotate through the through hole and finally inserted into the embedding channel; the locking grille is arc-shaped, and the driving motor is provided below the telescopic member. A connecting rod is provided between the driving motor and the locking grille and connected through the connecting rod.

2. The lathe clamping base according to claim 1, characterized in that: An air intake passage is connected to a side of the embedded hole away from the slide track. The air intake passage is located below the embedded hole and connected to an external air intake pipe. The air intake passage blows air into the embedded hole when the locking grille is started and reset.

3. The lathe clamping base according to claim 1, characterized in that: The rotary drive assembly includes a base, a bearing, a first rack, a first motor and a first gear. The shell is disposed in the base and connected through the bearing. The first rack is ringed on the shell. The first motor is disposed on one side of the base. The first motor and the first rack are driven and connected through the first gear.

4. The lathe clamping base according to claim 1, characterized in that: A connecting piece is arranged on the slide seat, a clamping block is sleeved on the connecting piece, and the clamping block is detachably connected to the connecting piece.

5. A processing lathe, comprising a clamping base as claimed in any one of claims 1 to 4, characterized in that: The tool holder is movable along the axis of the cam and is provided with a plurality of movable parts, wherein the movable parts are movable along the axis of the cam, and the movable parts are movable along the axis of the cam. A reset frame and a reset spring are arranged at the other end of the second channel. Four reset springs connect the reset frame and the second channel. When the tool platform moves downward, the reset spring passes through the reset frame and extends out of the second channel.

6. The processing lathe according to claim 5, characterized in that: The tool holder also includes a second motor and a second gear. Second racks are provided on both sides of the switching plate. The second motor is provided on one side of the fixed shell and is connected to the second gear through its side wall. The second gear is meshed with the second rack. Starting the second motor moves the switching plate.

7. The processing lathe according to claim 5, characterized in that: The side wall of the fixing hole is symmetrically provided with a spring ball assembly, and the tool platform is provided with a positioning groove at a position corresponding to the spring ball assembly. In the absence of external force, the spring ball assembly pops out and engages with the positioning groove.

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