CN215847131U

CN215847131U - Adjustable numerical control lathe fixture

Info

Publication number: CN215847131U
Application number: CN202122140318.8U
Authority: CN
Inventors: 周冬兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-18
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses an adjustable numerical control lathe fixture, which relates to the field of lathe fixtures and comprises a first component and a second component, wherein the first component comprises a top fixture head, a middle circular cavity and a bottom connecting block, the outer wall of the circular cavity is provided with four openings, the inner part of the circular cavity is provided with four sliding blocks, the outer wall of each sliding block is fixedly connected with a lug, the lug and the openings are designed in a matched mode in position and shape, the bottom of the connecting block is fixedly connected with a sliding column, the middle parts of the connecting block and the sliding column are provided with a threaded channel, the second component comprises a sliding cylinder and a top column, the sliding column is arranged in the sliding cylinder and is connected with the sliding cylinder in a sliding mode through a limiting ring on the outer wall of the sliding cylinder and the inner wall of the sliding cylinder, the surface of the top column is provided with threads and matched with the threaded channel, the sliding block and the lug are added in the inner part of the circular cavity of the first component and matched with the openings, a first spring and the top column, so that the lug can extend and shrink, the diameter range of the outer wall of the first assembly is enlarged, the first assembly can be used for workpieces with different inner diameters, and the step of replacing the clamp head is omitted.

Description

Adjustable numerical control lathe fixture

Technical Field

The utility model relates to the field of lathe machining, in particular to an adjustable numerical control lathe fixture.

Background

The lathe fixture is used for processing the inner and outer revolution surfaces and the end surfaces of a workpiece on a lathe, most of the lathe fixtures are arranged on a main shaft, and the few lathe fixtures are arranged on a saddle or a lathe bed, and the lathe fixtures are divided into the following parts according to different workpiece positioning modes: centering formula, chuck formula, angle bar formula and colored disk formula etc. the clamping connection mode has add to connect and interior clamping connection, to the great machined part that just has the internal diameter of some diameters, clamping connection formula in generally adopting, the most diameter of clamping connection formula anchor clamps head is fixed in traditional lathe fixture, the different machined part of internal diameter adds the frequent anchor clamps head that needs to be changed man-hour, and can't carry out accurate internal diameter control, uses comparatively troublesome, for this reason this novel numerical control lathe anchor clamps that provide an adjustable are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustable numerical control lathe fixture, which solves the technical problems that the traditional lathe fixture cannot be adjusted to deal with workpieces with different inner diameters, so that the fixture head needs to be replaced during machining, and the use is troublesome.

In order to solve the technical problem, the utility model provides an adjustable numerical control lathe fixture, which comprises a first component and a second component, the first component consists of a top clamp head, a middle circular cavity and a bottom connecting block, the clamp head, the circular cavity and the connecting block are fixedly connected integrally, the outer wall of the circular cavity is provided with four openings, four sliding blocks are arranged inside the circular cavity, and the outer wall of each sliding block is fixedly connected with a convex block, the shape of the convex block is matched with that of the position of the opening, the bottom of the connecting block is fixedly connected with a sliding column, a thread channel is arranged between the connecting block and the middle part of the sliding column, the second component consists of a sliding cylinder and a top column, the sliding column is arranged in the sliding cylinder, and the surface of the ejection column is provided with threads and matched with the threaded channel.

Preferably, four the sliding block concatenation forms an inside hole ring piece through progressively increasing, the cover is equipped with spring one between lug and the ring intracavity wall, the knob initial position of fore-set top portion and the inside biggest hole of ring piece are kept level mutually through the circle.

Preferably, the sliding column internal thread channel and the top column outer wall thread are designed to rotate clockwise and downwards.

Preferably, a cavity is formed in the outer wall of one side of the sliding cylinder, a bolt penetrating through the sliding cylinder and the wall of the cavity shell is arranged outside the sliding cylinder, the bolt is connected between the wall of the two sides of the cavity shell in a sliding mode through a limiting block, and a second spring is sleeved inside the cavity of the bolt.

Preferably, the bolt bottom is the slope fixture block, the slip post outer wall is equipped with round tooth rack, tooth rack length is the same with the slip post outer wall, the tooth rack is the anticlockwise slope and arranges, just tooth rack and bolt bottom slope fixture block phase-match design.

Preferably, the top of the clamp head is provided with a clamping groove, and the bottom of the second component is provided with a groove connected with the output rotating shaft of the motor.

Compared with the prior art, the adjustable numerical control lathe clamp provided by the utility model has the following beneficial effects:

(1) the utility model provides an adjustable numerical control lathe fixture, which can realize the extension and contraction of a convex block by adding the sliding block and the convex block in the inner part of a circular cavity of a first assembly and matching with a hole, a first spring and a top column, thereby enlarging the diameter range of the outer wall of the first assembly, being applicable to workpieces with different inner diameters and saving the step of replacing a fixture head.

(2) The utility model provides an adjustable numerical control lathe fixture, which enables a user to enable a top column to move upwards to jack open a sliding block when the user rotates the sliding column through a thread channel inside the sliding column and a clockwise thread of the top column, and enables the moving distance between the sliding block and a convex block to be adjusted through the rotating number and angle of the sliding column, so that the adjusting precision is higher.

(3) The utility model provides an adjustable numerical control lathe fixture, which is characterized in that a cavity and a plug pin are arranged on one side of a sliding cylinder and matched with a tooth rack on the outer wall of a sliding column, so that the sliding column can be limited to rotate only in one direction, and the sliding column is prevented from being separated when a motor drives to rotate, and the clamping is unstable.

Drawings

FIG. 1 is a schematic perspective view of an adjustable CNC lathe fixture of the present invention;

FIG. 2 is a front cross-sectional view of an adjustable numerically controlled lathe fixture of the present invention;

FIG. 3 is a schematic view of a disassembled structure of the adjustable clamp of the numerically controlled lathe according to the present invention;

FIG. 4 is a semi-sectional view of components of an adjustable numerically controlled lathe fixture of the present invention;

FIG. 5 is a view showing the engagement between the rack and the pin in the adjustable CNC lathe fixture according to the present invention.

Reference numbers in the figures: 1. a first component; 2. a second component; 3. a clamp head; 4. a circular ring cavity; 41. opening a hole; 42. a slider; 43. a bump; 44. a first spring; 5. connecting blocks; 6. a sliding post; 61. a threaded passage; 62. a tooth rack; 7. a sliding cylinder; 71. a cavity; 72. a bolt; 73. a second spring; 8. a top pillar; 9. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment, as shown in fig. 1-5, the adjustable numerical control lathe fixture comprises a first component 1 and a second component 2, wherein the first component 1 comprises a top fixture head 3, a middle circular cavity 4 and a bottom connecting block 5, the fixture head 3, the circular cavity 4 and the connecting block 5 are fixedly connected into a whole, four openings 41 are formed in the outer wall of the circular cavity 4, four sliding blocks 42 are arranged in the circular cavity 4, a convex block 43 is fixedly connected to the outer wall of each sliding block 42, the positions of the convex blocks 43 and the openings 41 are designed to be matched, when the sliding blocks 42 move, the convex blocks 43 are driven to move and extend out of the openings 41 to be clamped, a sliding column 6 is fixedly connected to the bottom of the connecting block 5, a threaded channel 61 is formed in the middle parts of the connecting block 5 and the sliding column 6, the second component 2 comprises a sliding cylinder 7 and a top cylinder 8, the sliding column 6 is installed in the sliding cylinder 7, and through the spacing ring 9 sliding connection of the outer wall of the sliding column 6 and the inner wall of the sliding cylinder 7, the spacing ring 9 can prevent the sliding column 6 from separating from the sliding cylinder 7, the surface of the top column 8 is provided with threads and is matched with the threaded passage 61, and the top column 8 can rotate along the threaded passage 61.

Wherein, four sliding blocks 42 splice and form a ring piece of inside hole through progressively increasing, the cover is equipped with spring 44 between lug 43 and the 4 inner walls of ring chamber, 8 top button head initial positions of fore-set and the inside biggest hole of ring piece keep level mutually through the circle, can extrude the ring piece when 8 up movements of fore-set promptly, make four sliding blocks 42 outwards remove simultaneously, sliding block 42 can drive lug 43 and stretch out along trompil 41, carry out the joint to outside article, when 8 downstream of fore-set, spring 44 drives lug 43 and resets, make four sliding blocks 42 splice into a ring piece again.

The thread channel 61 inside the sliding column 6 and the thread on the outer wall of the top column 8 are designed to rotate clockwise and downwards, that is, the wall of the sliding column 6 is rotated clockwise to enable the sliding column 6 to move downwards along the top column 8, and the sliding column 6 can be regarded as being immobile and the top column 8 moves upwards.

The outer wall of one side of the sliding cylinder 7 is provided with a cavity 71, a bolt 72 penetrating through the sliding cylinder 7 and the wall of the cavity 71 is arranged outside the sliding cylinder 7, the bolt 72 is connected between the walls of the two sides of the cavity 71 in a sliding mode through a limiting block, a second spring 73 is sleeved inside the bolt 72 and located inside the cavity 71, the bolt 72 can move inside the cavity 71 by pulling the bolt 72 outwards, and the bolt 72 can be reset through the second spring 73 when no external force exists.

Wherein, bolt 72 bottom is the slope fixture block, 6 outer walls of slip post are equipped with

round tooth rack

62, 62 length of tooth rack are the same with 6 outer walls of slip post, tooth rack 62 arranges for anticlockwise slope, and tooth rack 62 and the design of bolt 72 bottom slope fixture block phase-match, when the clockwise rotation of slip post 6, tooth rack 62 promotes bolt 72 upward movement, tooth rack 62 rotates and is not influenced, when the anticlockwise rotation of slip post 6, tooth rack 62 is blocked stall by bolt 72, make slip post 6 only can one-way clockwise rotation.

The top of the clamp head 3 is provided with a clamping groove for clamping articles, the bottom of the component 2 is provided with a groove connected with the output rotating shaft of the motor, and the motor provides rotary power support.

The working principle is as follows: when the device is used, the clamp head 3 can be directly used for clamping a processed object, or the top of the component I1 can be deeply inserted into a window of a processed part, the sliding column 6 rotates downwards along the internal thread channel 61 and the top column 8 through the clockwise rotation of the connecting block 5, the top column 8 moves upwards, the extrusion sliding block 42 scatters around, the lug 43 extends out along the opening 41 to support and clamp the processed part, the extending length of the lug 43 can be adjusted through the number of turns of the rotating sliding column 6, the toothed bar 62 pushes the bolt 72 to move upwards when the sliding column 6 at the bottom rotates clockwise, the rotation of the toothed bar 62 is not influenced, meanwhile, the bolt 72 can prevent the toothed bar 62 from rotating anticlockwise, the sliding column 6 is prevented from falling off when the motor drives the component to rotate, the bolt 72 can be pulled upwards to separate the bolt 72 from the toothed bar 62, the sliding column 6 can reversely rotate upwards, and the top column 8 moves downwards, the slide block 42 is returned by the action of the first spring 44, causing the cam 43 to retract inside the annular chamber 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable numerical control lathe fixture is characterized by comprising a first assembly (1) and a second assembly (2), wherein the first assembly (1) is composed of a top fixture head (3), a middle circular cavity (4) and a bottom connecting block (5), the fixture head (3), the circular cavity (4) and the connecting block (5) are fixedly connected in an integrated manner, four open holes (41) are formed in the outer wall of the circular cavity (4), four sliding blocks (42) are arranged inside the circular cavity (4), a convex block (43) is fixedly connected to the outer wall of each sliding block (42), the positions and the shapes of the convex blocks (43) and the open holes (41) are matched, a sliding column (6) is fixedly connected to the bottom of the connecting block (5), a threaded channel (61) is formed in the middle of each connecting block (5) and the corresponding sliding column (6), and the second assembly (2) is composed of a sliding cylinder (7) and a top column (8), the sliding column (6) is arranged inside the sliding cylinder (7) and is in sliding connection with the limiting ring (9) on the outer wall of the sliding column (6) and the inner wall of the sliding cylinder (7), and the surface of the ejection column (8) is provided with threads and is matched with the threaded passage (61).

2. An adjustable numerically controlled lathe fixture as claimed in claim 1, wherein four sliding blocks (42) are spliced to form a circular ring block with an inner hole gradually enlarged, a first spring (44) is sleeved between the lug (43) and the inner wall of the circular ring cavity (4), and the initial position of the round head at the top of the top column (8) is equal to the maximum inner hole of the circular ring block through a circle.

3. An adjustable numerically controlled lathe fixture as claimed in claim 1, characterized in that the internal thread passage (61) of the sliding column (6) and the external wall thread of the top column (8) are designed clockwise and downward.

4. The adjustable numerical control lathe fixture as claimed in claim 1, wherein a cavity (71) is formed in the outer wall of one side of the sliding cylinder (7), a bolt (72) penetrating through the sliding cylinder (7) and the wall of the cavity (71) is arranged outside the sliding cylinder (7), the bolt (72) is slidably connected between the wall of two sides of the cavity (71) through a limiting block, and a second spring (73) is sleeved inside the cavity (71) of the bolt (72).

5. The adjustable numerical control lathe fixture as claimed in claim 4, wherein the bottom of the plug pin (72) is an inclined fixture block, the outer wall of the sliding column (6) is provided with a circle of toothed racks (62), the length of the toothed racks (62) is the same as that of the outer wall of the sliding column (6), the toothed racks (62) are arranged in an anticlockwise inclined mode, and the toothed racks (62) and the inclined fixture block at the bottom of the plug pin (72) are designed in a matching mode.

6. The adjustable numerical control lathe fixture as claimed in claim 1, wherein the top of the fixture head (3) is provided with a clamping groove, and the bottom of the second component (2) is provided with a groove connected with an output rotating shaft of the motor.