Movable control clamp for tool turret main shaft

Abstract

The utility model relates to a tool turret main shaft movable type control clamp. The problem that in the prior art, accurate clamping, positioning and braking are difficult to achieve between a tool turret main shaft and a milling workpiece is solved. The device comprises a sliding installation base, a tool turret base is arranged on the sliding installation base in a sliding mode, a workpiece shaft base is arranged at the lower end of the tool turret base, a flexible stop device is arranged on an output shaft of the tool turret base, a sliding positioning base is correspondingly arranged in the opposite direction of the workpiece shaft base, and a milling workpiece is positioned between the sliding positioning base and the workpiece shaft base. And a plug-in type clamping mechanism is arranged at one end, connected with the sliding positioning seat, of the milling workpiece. The utility model has the advantages that the milling cutter and the milling workpiece can be quickly braked, the milling workpiece can be effectively clamped and positioned, and the milling precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a movable control fixture for a turret spindle. Background Art

[0002] The turret turning center completes the eccentricity of the end face and radial direction of the turned part and various processing actions by lifting the turret. After processing a process, the turret rotates to replace other tools to complete the complex processing steps. Because the turret will take up a relatively large space, the conventional turret turning center machine tool is a single turret type, and the processing efficiency is relatively low. The dual-spindle dual-turret turning center has two independent spindles and turrets, and has the ability to clamp two process parts at one time, achieving high efficiency and high flexibility in turning. However, the structure of this machine tool is relatively complex, and the iron chips and cutting fluid in the processing area inside the machine tool splash everywhere to the operating area of ​​the electrical equipment, which is very easy to cause damage to the equipment, increase maintenance expenses and manpower and material resources. The conventional lathe external protection structure can no longer meet the protection function of this complex turning center; in addition, it is difficult to achieve accurate clamping positioning and braking between the existing turret spindle and the milling workpiece, which is easy to cause over-milling.

[0003] In order to solve the deficiencies of the prior art, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a dual-spindle dual-turret machine tool [CN201710810293.3], which includes a left spindle and a right spindle, a left turret and a right turret, and a protective component that isolates the processing area and the equipment operation area of ​​the machine tool, and the protective component includes: a left middle partition, a right middle partition, a guide rail protection plate, a left turret shield, a right turret shield and a right spindle shield, the left middle partition is vertically arranged on the left side of the processing area and fixed on the left spindle of the machine tool; the right middle partition is fixed to the right side of the processing area in the vertical direction and is located above the right spindle shield; the guide rail protection plate is arranged on the rear side of the left middle partition and the right middle partition, and is connected to the left turret shield and the right turret shield.

[0004] The above solution solves the problem of complicated structure and poor protection effect of the spindle double turret turning center in the prior art to a certain extent, but the solution still has many shortcomings, such as: it is difficult to achieve accurate clamping positioning and braking between the turret spindle and the milling workpiece, which easily causes over-milling. Summary of the invention

[0005] The utility model aims to provide a movable control fixture for a turret spindle in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a turret spindle movable control fixture, including a sliding mounting base, a turret seat is slidably provided on the sliding mounting base, and a workpiece shaft seat is provided at the lower end of the turret seat, a flexible stopping device is provided on the output shaft of the turret seat, a corresponding sliding positioning seat is provided opposite to the workpiece shaft seat, and a milling workpiece is positioned between the sliding positioning seat and the workpiece shaft seat, and a plug-in clamping mechanism is provided at the end where the milling workpiece is connected to the sliding positioning seat.

[0007] In the above-mentioned tool turret spindle movable control clamp, the plug-in clamping mechanism includes a clamping cylinder arranged on a sliding mounting base, and a locking sleeve is provided at the output end of the clamping cylinder, a rotating positioning sleeve is provided in the sliding positioning seat, and a linkage sleeve is connected to the axial inner side of the rotating positioning sleeve through an installation bearing, and a positioning groove is provided at the end of the linkage sleeve corresponding to the locking sleeve.

[0008] In the above-mentioned movable control fixture for the turret spindle, a stopping tooth portion is provided at the end of the locking sleeve, and a stopping inner tooth corresponding to the stopping tooth portion is provided on the circumferential inner wall of the positioning groove.

[0009] In the above-mentioned tool turret spindle movable control fixture, a connecting slider is provided at the bottom of the sliding positioning seat, and the connecting slider is slidably set in a slide groove on the sliding mounting base. A position control cylinder is provided on the sliding mounting base, and the output end of the position control cylinder is connected to the sliding positioning seat.

[0010] In the above-mentioned movable control fixture for the turret spindle, the flexible stopping device includes a positioning connecting frame connected to the turret seat, an annular positioning seat is connected to the end of the positioning connecting frame away from the turret seat, and the axial inner side of the annular positioning seat is connected to a rotating output sleeve through a rotating positioning bearing, the output shaft of the turret seat is penetrated through the circumferential inner side of the rotating output sleeve and forms a fixed connection, and the inner ring of the mounting bearing is connected to the circumferential outer wall of the rotating output sleeve.

[0011] In the above-mentioned turret spindle movable control fixture, a plurality of rotation locking rods are circumferentially arranged on one side of the rotating output shaft sleeve, one end of the rotation locking rod is fixedly connected to the rotating output shaft sleeve and the other end is arranged in the braking groove on one side of the annular positioning seat through a sliding rod.

[0012] In the above-mentioned turret spindle movable control fixture, a brake cylinder is provided on the annular positioning seat, and a brake buffer gap is formed between two adjacent rotation locking rods, and the output end of the brake cylinder is extended toward the brake buffer gap.

[0013] In the above-mentioned tool turret spindle movable control fixture, an adjusting slide rail is provided on the sliding mounting base, a lifting slide plate is provided on the adjusting slide rail, and a lifting slide groove is provided on the lifting slide plate. The tool turret seat is slidingly lifted and lowered on the lifting slide plate and the lifting driving force is provided by the lifting cylinder.

[0014] In the above-mentioned movable control fixture for the turret spindle, a connecting gear cylinder is provided at the output end of the workpiece shaft seat, and a connecting slot for positioning the milling workpiece is provided on the inner circumferential side of the connecting gear cylinder.

[0015] In the above-mentioned movable control fixture for the turret spindle, a positioning rack corresponding to the connecting gear tube is connected to the sliding mounting base through a positioning slider, and the positioning rack is driven to rise and fall by a positioning cylinder.

[0016] Compared with the existing technology, the advantages of the utility model are: it can realize the active clamping and positioning of the turret spindle, and can effectively stop the milling workpiece to prevent over-milling; secondly, it can realize the sliding adjustment of the position between the turret spindle and the milling workpiece, which not only has good flexibility, but also can ensure the milling accuracy and improve the milling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the plug-in clamping mechanism in the utility model;

[0019] Figure 3 It is a structural schematic diagram of one side of the flexible stop device in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the other side of the flexible stop device in the utility model;

[0021] Figure 5 It is a detailed structural diagram of the connecting gear cylinder in the utility model;

[0022] In the figure, a sliding mounting base 1, a turret seat 2, a workpiece shaft seat 3, a connecting gear cylinder 31, a connecting slot 32, a positioning slider 33, a positioning rack 34, a positioning cylinder 35, a flexible stopping device 4, a positioning connecting frame 41, an annular positioning seat 42, a rotating output sleeve 43, a rotating locking rod 44, a slide rod 45, a brake cylinder 46, an adjusting slide rail 47, a lifting slide plate 471, a lifting slide groove 472, a lifting cylinder 473, a brake groove 48, a sliding positioning seat 5, a connecting slider 51, a slide groove 52, a position control cylinder 53, a milling workpiece 6, a plug-in clamping mechanism 7, a clamping cylinder 71, a locking sleeve 72, a rotating positioning seat sleeve 73, an installing bearing 74, a linkage sleeve 75, a stopping tooth portion 751, a positioning groove 76, and a stopping inner tooth 761. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5 As shown, a turret spindle movable control fixture includes a sliding mounting base 1, a turret seat 2 is slidably provided on the sliding mounting base 1, and a workpiece shaft seat 3 is provided at the lower end of the turret seat 2, a flexible stopping device 4 is provided on the output shaft of the turret seat 2, a sliding positioning seat 5 is correspondingly provided opposite to the workpiece shaft seat 3, and a milling workpiece 6 is positioned between the sliding positioning seat 5 and the workpiece shaft seat 3, and a plug-in clamping mechanism 7 is provided at the end where the milling workpiece 6 is connected to the sliding positioning seat 5.

[0025] Among them, the plug-in clamping mechanism 7 includes a clamping cylinder 71 arranged on the sliding mounting base 1, and a locking sleeve 72 is provided at the output end of the clamping cylinder 71, a rotating positioning seat sleeve 73 is provided in the sliding positioning seat 5, and the axial inner side of the rotating positioning seat sleeve 73 is connected to a linkage sleeve 75 through an installation bearing 74, and a positioning groove 76 corresponding to the locking sleeve 72 is provided at the end of the linkage sleeve 75.

[0026] During braking, the locking sleeve 72 at the output end of the clamping cylinder 71 is inserted into the positioning groove 76 at the end of the linkage sleeve 75.

[0027] It can be seen that a stopping tooth portion 751 is provided at the end of the locking sleeve 72 , and a stopping inner tooth 761 corresponding to the stopping tooth portion 751 is provided on the circumferential inner wall of the positioning groove 76 .

[0028] The action of the stop tooth portion 751 and the stop inner tooth 761 stops the linkage sleeve 75 from rotating, thereby causing the milling workpiece to stop rotating.

[0029] Furthermore, a connecting slider 51 is provided at the bottom of the sliding positioning seat 5, and the connecting slider 51 is slidably set in a slide groove 52 on the sliding mounting base 1. The sliding mounting base 1 is provided with a position control cylinder 53, and the output end of the position control cylinder 53 is connected to the sliding positioning seat 5.

[0030] The position control cylinder can drive the sliding positioning seat 5 to increase the clamping force on the milling workpiece 6.

[0031] Obviously, the flexible stopping device 4 includes a positioning connecting frame 41 connected to the turret seat 2, and the end of the positioning connecting frame 41 away from the turret seat 2 is connected to an annular positioning seat 42, and the axial inner side of the annular positioning seat 42 is connected to a rotating output sleeve 43 through a rotating positioning bearing, the output shaft of the turret seat 2 is penetrated through the circumferential inner side of the rotating output sleeve 43 and forms a fixed connection, and the inner ring of the mounting bearing 74 is connected to the circumferential outer wall of the rotating output sleeve 43.

[0032] Specifically, a plurality of rotation locking rods 44 are circumferentially arranged on one side of the rotation output shaft sleeve 43 , one end of the rotation locking rod 44 is fixedly connected to the rotation output shaft sleeve 43 and the other end is arranged in a braking groove 48 on one side of the annular positioning seat 42 through a sliding rod 45 .

[0033] Furthermore, a brake cylinder 46 is disposed on the annular positioning seat 42 , and a brake buffer gap is formed between two adjacent rotation locking rods 44 , and an output end of the brake cylinder 46 is extended toward the brake buffer gap.

[0034] When the turret stops running, the tool mounting plate on its output shaft will continue to rotate due to inertia. At this time, the output end of the brake cylinder 46 is inserted into the brake buffer gap between the rotating locking rods 44 to form an elastic brake.

[0035] More specifically, an adjusting rail 47 is provided on the sliding mounting base 1, a lifting slide 471 is provided on the adjusting rail 47, and a lifting slide groove 472 is provided on the lifting slide 471. The turret seat 2 is slidingly and liftingly arranged on the lifting slide 471 and a lifting driving force is provided by a lifting cylinder 473.

[0036] The lifting cylinder 473 controls the milling distance and adjusts it according to the thickness specifications of the milling workpiece 6.

[0037] In detail, a connecting gear cylinder 31 is provided at the output end of the workpiece shaft seat 3 , and a connecting slot 32 for positioning the milling workpiece 6 is provided on the inner side of the connecting gear cylinder 31 in the circumferential direction.

[0038] Preferably, a positioning rack 34 corresponding to the connecting gear cylinder 31 is connected to the sliding mounting base 1 through a positioning slider 33 , and the positioning rack 34 is driven to rise and fall by a positioning cylinder 35 .

[0039] The output shaft is braked by the positioning rack 34 on the positioning cylinder 35 to prevent the milling workpiece from continuously rotating when the operation stops.

[0040] To sum up, the principle of this embodiment is: the flexible stop device 4 is used to elastically brake the output shaft of the turret seat 2 after it stops running, so as to avoid over-milling caused by inertial movement. Secondly, the lifting cylinder 473 is used to achieve rapid separation between the turret seat 2 and the milling workpiece 6. At the same time, the plug-in clamping mechanism 7 and the positioning rack 34 at the end of the positioning cylinder 35 are used to quickly clamp and brake the milling workpiece 6, thereby improving the milling accuracy and avoiding over-milling.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0042] Although this article uses more terms such as sliding mounting base 1, turret seat 2, workpiece shaft seat 3, connecting gear cylinder 31, connecting slot 32, positioning slide block 33, positioning rack 34, positioning cylinder 35, flexible stopping device 4, positioning connecting frame 41, annular positioning seat 42, rotating output sleeve 43, rotating locking rod 44, slide rod 45, brake cylinder 46, adjusting slide rail 47, lifting slide plate 471, lifting slide groove 472, lifting cylinder 473, brake groove 48, sliding positioning seat 5, connecting slide block 51, slide groove 52, position control cylinder 53, milling workpiece 6, plug-in clamping mechanism 7, clamping cylinder 71, locking sleeve 72, rotating positioning seat sleeve 73, mounting bearing 74, linkage sleeve 75, stopping tooth portion 751, positioning groove 76, stopping inner tooth 761, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as these terms are contrary to the spirit of the present invention.

Claims

1. A turret spindle movable control fixture, comprising a sliding mounting base (1), a turret seat (2) being slidably mounted on the sliding mounting base (1), and a workpiece shaft seat (3) being disposed at the lower end of the turret seat (2), characterized in that: A flexible stop device (4) is provided on the output shaft of the turret seat (2); a corresponding sliding positioning seat (5) is provided opposite to the workpiece shaft seat (3); a milling workpiece (6) is positioned between the sliding positioning seat (5) and the workpiece shaft seat (3); and a plug-in clamping mechanism (7) is provided at one end of the milling workpiece (6) connected to the sliding positioning seat (5).

2. The turret spindle movable control fixture according to claim 1, characterized in that: The plug-in clamping mechanism (7) comprises a clamping cylinder (71) arranged on a sliding mounting base (1), and a locking sleeve (72) is provided at the output end of the clamping cylinder (71), a rotating positioning seat sleeve (73) is provided inside the sliding positioning seat (5), and a linkage sleeve (75) is connected to the axial inner side of the rotating positioning seat sleeve (73) via a mounting bearing (74), and a positioning groove (76) corresponding to the locking sleeve (72) is provided at the end of the linkage sleeve (75).

3. The turret spindle movable control fixture according to claim 2, characterized in that: The end of the locking sleeve (72) is provided with a stop tooth portion (751), and the circumferential inner wall of the positioning groove (76) is provided with a stop inner tooth (761) corresponding to the stop tooth portion (751).

4. The movable control fixture for the turret spindle according to claim 3, characterized in that: A connecting slider (51) is provided at the bottom of the sliding positioning seat (5), and the connecting slider (51) is slidably arranged in a slide groove (52) on the sliding mounting base (1). A position control cylinder (53) is provided on the sliding mounting base (1), and an output end of the position control cylinder (53) is connected to the sliding positioning seat (5).

5. The movable control fixture for the turret spindle according to claim 1, characterized in that: The flexible stop device (4) comprises a positioning connecting frame (41) connected to the turret seat (2); the end of the positioning connecting frame (41) away from the turret seat (2) is connected to an annular positioning seat (42); and the axial inner side of the annular positioning seat (42) is connected to a rotating output shaft sleeve (43) via a rotating positioning bearing; the output shaft of the turret seat (2) is passed through the circumferential inner side of the rotating output shaft sleeve (43) and forms a fixed connection; and the inner ring of the mounting bearing (74) is connected to the circumferential outer wall of the rotating output shaft sleeve (43).

6. The movable control fixture for the turret spindle according to claim 5, characterized in that: A plurality of rotation locking rods (44) are circumferentially arranged on one side of the rotation output shaft sleeve (43); one end of the rotation locking rod (44) is fixedly connected to the rotation output shaft sleeve (43) and the other end is arranged in a braking groove (48) on one side of the annular positioning seat (42) through a sliding rod (45).

7. The movable control fixture for the turret spindle according to claim 6, characterized in that: A brake cylinder (46) is provided on the annular positioning seat (42), and a brake buffer gap is formed between two adjacent rotating locking rods (44), and the output end of the brake cylinder (46) is extended toward the brake buffer gap.

8. The movable control fixture for the turret spindle according to claim 1, characterized in that: The sliding mounting base (1) is provided with an adjusting slide rail (47), the adjusting slide rail (47) is provided with a lifting slide plate (471), and the lifting slide plate (471) is provided with a lifting slide groove (472), and the turret seat (2) is slidingly and liftingly arranged on the lifting slide plate (471) and a lifting driving force is provided by a lifting cylinder (473).

9. The movable control fixture for the turret spindle according to claim 1, characterized in that: The output end of the workpiece shaft seat (3) is provided with a connecting gear cylinder (31), and the inner side of the connecting gear cylinder (31) is provided with a connecting slot (32) for positioning the milling workpiece (6).

10. The tool turret spindle movable control fixture according to claim 1, characterized in that: The sliding mounting base (1) is connected to a positioning rack (34) corresponding to the connecting gear cylinder (31) via a positioning slider (33), and the positioning rack (34) is driven to rise and fall via a positioning cylinder (35).

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