CN217493503U

CN217493503U - Ejector rod seat and vertical milling machine workbench

Info

Publication number: CN217493503U
Application number: CN202221802581.7U
Authority: CN
Inventors: 张黎明
Original assignee: Changzhou Dingshuo Hydraulic Machinery Manufacturing Co ltd
Current assignee: Changzhou Dingshuo Hydraulic Machinery Manufacturing Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-27
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to the technical field of machining, especially, relate to a ejector pin seat and vertical milling machine workstation, this ejector pin seat includes: a fixed base; the guide cylinder is fixed on the fixed base and is provided with a through channel; the rotating disc is connected to one end of the guide cylinder in a coaxial rotating mode, a transmission screw rod is arranged on the rotating disc, and the transmission screw rod extends into a channel of the guide cylinder; the telescopic assembly is arranged in the channel of the guide cylinder, and the transmission screw rod is in threaded connection with the telescopic assembly; the choke plug is coaxially and rotatably connected to the end part of the telescopic assembly protruding out of the guide cylinder, and is of a circular truncated cone structure; the locking mechanism is arranged on the guide cylinder, is in contact connection with the telescopic assembly and is used for locking and positioning the telescopic assembly; the choke plug tightly pushes one end of the workpiece and rotates along with the angle adjustment of the dividing head. According to the indexing head, when the indexing head is used for converting the machining angle of the workpiece, the machining can be realized without any operation on the ejector rod seat, and the machining efficiency and the machining precision are improved.

Description

Ejector rod seat and vertical milling machine workbench

Technical Field

The utility model relates to a machinery processing technology field especially relates to a ejector pin seat and vertical milling machine workstation.

Background

The main shaft of the vertical milling machine is vertical to the workbench, the planes, grooves, holes, inclined planes and the like of common workpieces are machined, and during specific machining, the workpieces need to be fixed on the workbench firstly, and then the workpieces are machined by lifting the workbench;

in the related technology, when different sides of a workpiece need to be machined, a dividing head is arranged on a workbench, a push rod seat is arranged at the other end of the workpiece, one end of the workpiece is clamped through the dividing head, and the workpiece is tightly pushed through the push rod seat at the other end of the workpiece, so that the workpiece is locked;

however, the inventor finds that when the machining surface of the workpiece needs to be switched, the fixing form of the workpiece needs to retract the top head of the ejector rod seat first, then the workpiece is rotated by the angle of the indexing chuck, and then the top head of the ejector rod seat is extended out to tightly press the workpiece, and the structure form not only affects the machining efficiency, but also affects the machining precision.

The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of at least one of the above technical problems, the present disclosure provides a push rod seat and a vertical milling machine table, which employ a rotatable bulkhead to achieve synchronous rotation with a dividing head, so as to achieve angle adjustment of a workpiece, and improve processing efficiency and precision.

According to a first aspect of the present disclosure, there is provided a ejector pin holder comprising:

the fixed base is fixed on the workbench;

the guide cylinder is fixed on the fixed base and is provided with a through channel;

the rotating disc is connected to one end of the guide cylinder in a coaxial rotating mode, a transmission screw rod is arranged on the rotating disc, and the transmission screw rod extends into a channel of the guide cylinder;

the telescopic assembly is arranged in the channel of the guide cylinder and can move relatively along the axial direction of the channel, the transmission screw rod is in threaded connection with the telescopic assembly, and the telescopic assembly is configured to only do telescopic motion in the guide cylinder;

the choke plug is coaxially and rotatably connected to the end part of the telescopic assembly protruding out of the guide cylinder, and the choke plug is of a round table structure and used for tightly pushing a workpiece;

the locking mechanism is arranged on the guide cylinder, is in contact connection with the telescopic assembly and is used for locking and positioning the telescopic assembly;

the choke plug tightly pushes one end of the workpiece and rotates along with the angle adjustment of the dividing head.

In some embodiments of the present disclosure, the telescopic assembly includes a telescopic rod and a nut seat detachably connected to an end of the telescopic rod, and an end of the telescopic rod facing the nut seat has a cavity into which the driving screw rod extends.

In some embodiments of the present disclosure, the locking mechanism is a stud screwed on the guide cylinder, and the top of the stud abuts against the telescopic rod.

In some embodiments of the present disclosure, the locking mechanism includes a first locking block and a second locking block which are slidably arranged in the guide cylinder in a direction perpendicular to the telescopic rod, the first locking block and the second locking block are arranged oppositely, and a semi-circular groove matched with the cross section of the telescopic rod is arranged between the first locking block and the second locking block;

the locking mechanism further comprises a screw rod which is connected with the first locking block and the second locking block in a threaded mode, and when the screw rod rotates in the first direction, the first locking block and the second locking block are close to each other, otherwise, the first locking block and the second locking block are far away from each other.

In some embodiments of the present disclosure, a step cavity is formed in one end of the bulkhead facing the guide cylinder, the telescopic rod extends into the step cavity, and a bearing set in clearance fit with the step cavity is fixed to a portion of the telescopic rod extending into the step cavity.

In some embodiments of the present disclosure, the bearing set includes a flat bearing and a thrust ball bearing.

In some embodiments of the present disclosure, a top end of the bulkhead further extends outward to form a fixing post, and a top of the fixing post is rounded.

In some embodiments of the present disclosure, an end cover is further disposed at an end of the guide cylinder close to the rotary table, the end cover is detachably fixed on the guide cylinder, and the rotary table is rotatably connected to the end cover through a bearing.

According to a second aspect of the present disclosure, there is provided a vertical milling machine table comprising:

a fixed platform;

the dividing head is fixed at one end of the fixed platform in the length direction and used for clamping the workpiece and adjusting the rotation angle of the workpiece;

the ejector rod base according to any one of the first aspect is fixed to the other end of the fixed platform, the choke plug of the ejector rod base is arranged opposite to the dividing head, and the ejector rod base is matched with the dividing head to fix a workpiece.

In some embodiments of the present disclosure, the fixing platform further has a clamping fixture thereon, the clamping fixture is detachably fixed between the index head and the ejector rod seat, and the height of the clamping fixture is lower than the maximum clamping dimension of the index head;

the clamping jig comprises a backer, a clamping block and a driving piece, wherein the clamping block is arranged opposite to the backer and can be close to or far away from the backer, and the driving piece drives the clamping block to move.

The beneficial effect of this disclosure does: this openly through the spiro union of transmission lead screw and flexible subassembly on the carousel realize that the flexible subassembly of carousel drive drives marcing forward and the back of vex head right, and through the locking of locking mechanism to flexible subassembly, realize the reliable support of vex head to the work piece tight, through setting up the vex head into rotating with flexible subassembly and being connected, the vex head has been realized following the real-time rotation of dividing head, through the aforesaid setting, when the processing angle of needs to the work piece is adjusted, only need can realize through adjusting the dividing head, need not to make any adjustment to the ejector pin seat, compare with the correlation technique, need not to take off the work piece from the ejector pin seat, and then the precision and the efficiency of processing have been improved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a jack stand according to an embodiment of the present disclosure;

FIG. 2 is a transverse cross-sectional view of a ram seat in an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a locking mechanism in an embodiment of the present disclosure;

FIG. 4 is an enlarged, fragmentary view in cross-section of a bulkhead in an embodiment of the disclosure;

FIG. 5 is a schematic structural diagram of a vertical milling machine table in the embodiment of the disclosure

Fig. 6 is a schematic structural diagram of a clamping fixture in an embodiment of the disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The ram seat shown in fig. 1 to 6 comprises a fixed base 10, a guide cylinder 11, a rotary disc 12, a telescopic assembly 14 and a bulkhead 15, wherein:

the fixing base 10 is fixed on the workbench, and the concrete fixing mode can be that the fixing base is fixed through a fastener, and the fixing base 10 is convenient to adjust and detach through the fastener due to the fact that the groove position is formed in the workbench along the length direction of the workbench.

The guide cylinder 11 is fixed on the fixed base 10, and a through channel is arranged on the guide cylinder 11; the shape structure of the guide cylinder 11 is not particularly limited, and may be a rectangular parallelepiped as shown in fig. 1, or in other embodiments of the present disclosure, a cylindrical structure as shown in fig. 2, in the embodiments of the present disclosure, the guide cylinder 11 is fixed above the fixed base 10, and the axis of the channel of the guide cylinder 11 is on the same horizontal straight line with the clamping center of the index head;

the rotary table 12 is connected to one end of the guide cylinder 11 in a coaxial rotating manner, a transmission screw rod 13 is arranged on the rotary table 12, and the transmission screw rod 13 extends into a channel of the guide cylinder 11; a handle as shown in fig. 1 and fig. 2 can be arranged on the turntable 12, and the end of the turntable 12 is manually driven to rotate through the handle;

the telescopic assembly 14 is arranged in a channel of the guide cylinder 11 and can move relatively along the axial direction of the channel, the transmission screw 13 is in threaded connection with the telescopic assembly 14, and the telescopic assembly 14 is configured to only do telescopic motion in the guide cylinder 11; it should be noted here that telescoping in the disclosed embodiment means that one end of the telescoping assembly 14 extends further out of the guide cylinder 11, or retracts back towards the inside of the guide cylinder 11, and not itself can be retracted; moreover, as shown in fig. 1, the side wall of the telescopic assembly 14 is provided with a slide way arranged along the axial direction, so that the telescopic assembly 14 does not rotate when moving;

the choke plug 15 is coaxially and rotatably connected to the end part of the telescopic assembly 14, protruding out of the guide cylinder 11, and the choke plug 15 is in a circular truncated cone structure and used for tightly pushing a workpiece;

the locking mechanism 16 is arranged on the guide cylinder 11, is in contact connection with the telescopic assembly 14 and is used for locking and positioning the telescopic assembly 14; it is understood that in the embodiment of the present disclosure, there are various structures for the structural form of the locking mechanism 16, and an exemplary description will be given below in the present disclosure;

when the clamping is carried out, the choke plug 15 tightly pushes one end of the workpiece and rotates along with the angle adjustment of the dividing head.

In the above embodiment, the screw connection of the transmission screw 13 and the telescopic assembly 14 on the rotary disc 12 is used for driving the telescopic assembly 14 to drive the choke plug 15 to advance and retreat oppositely, the locking mechanism 16 is used for locking the telescopic assembly 14, the reliable abutting of the choke plug 15 to a workpiece is realized, the choke plug 15 is arranged to be rotatably connected with the telescopic assembly 14, the choke plug 15 is rotated in real time along with the dividing head, through the arrangement, when the processing angle of the workpiece is required to be adjusted, the adjustment can be realized only by adjusting the dividing head, any adjustment on the ejector rod seat is not required, compared with the related art, the workpiece is not required to be taken down from the ejector rod seat, and the processing precision and efficiency are improved.

On the basis of the above embodiment, as shown in fig. 2, the telescopic assembly 14 comprises a telescopic rod 14a and a nut seat 14b detachably connected with the end of the telescopic rod 14a, and one end of the telescopic rod 14a facing the nut seat 14b is internally provided with a cavity for the transmission screw rod 13 to extend into. Therefore, the service life of the telescopic rod 14a is prolonged by the arrangement of the detachable nut seat 14b, and when the thread has a problem, the nut seat 14b can be directly replaced without replacing the telescopic rod 14 a; it will be understood that the telescopic rod 14a is not a structure which is self-retractable, but a structure which can move in the axial direction of the guide cylinder 11 under the action of the driving screw 13, in accordance with the above explanation; regarding the connection form of the nut seat 14b and the telescopic rod 14a, as shown in fig. 2, the nut seat can be fixed by a fastener, thereby facilitating the processing and maintenance.

In some embodiments of the present disclosure, as shown in fig. 1, the locking mechanism 16 is a stud screwed on the guide cylinder 11, and the top of the stud abuts against the telescopic rod 14 a. The distance between the top of the stud and the telescopic rod 14a is changed by rotating the stud, and when the top of the stud is in close contact with the telescopic rod 14a, the telescopic rod 14a is locked, so that the processing reliability is improved;

in other embodiments of the present disclosure, as shown in fig. 3, the locking mechanism 16 includes a first locking block 16a and a second locking block 16b which are slidably disposed in the guide cylinder 11 in a direction perpendicular to the telescopic rod 14a, the first locking block 16a and the second locking block 16b are disposed opposite to each other and have a semicircular groove therebetween matching the cross section of the telescopic rod 14 a;

the locking mechanism 16 further includes a threaded rod 16c threaded to both the first locking piece 16a and the second locking piece 16b, and when the threaded rod 16c is rotated in a first direction, the first locking piece 16a and the second locking piece 16b move toward each other and vice versa. Specifically, the screw directions of the first locking block 16a and the second locking block 16b are opposite, so that the screw 16c is close to each other when rotating in the forward direction and is far from each other when rotating in the reverse direction, and through the arrangement, the centering performance between the first locking block 16a and the second locking block 16b can be well ensured, and meanwhile, the rotation angle of the screw 16c can be reduced; further, in the disclosed embodiment, the screw 16c may be provided in a bent form as shown in fig. 1 to reduce the amount of force applied by the operator;

regarding the concrete connection form of the bulkhead 15 and the telescopic rod 14a, as shown in fig. 4, one end of the bulkhead 15 facing the guide cylinder 11 has a step cavity 15a, the telescopic rod 14a extends into the step cavity 15a, and the part of the telescopic rod 14a extending into the step cavity 15a is fixed with a bearing set 17 in clearance fit with the step cavity 15 a. Through the arrangement, the telescopic rod 14a can be rotatably connected with the bulkhead 15, and the bearing set 17 can be fixed at the end part of the bulkhead 15 in a cover plate mode and the like. With regard to the bearing set 17, with continued reference to fig. 4, the bearing set 17 includes a flat bearing 17a and a thrust ball bearing 17 b. Through the arrangement, the rotation of the choke plug 15 is smoother, and the use reliability of the choke plug 15 is improved.

Further, in the embodiment of the present disclosure, in order to adapt to the tightening of various workpieces, please continue to refer to fig. 4, the top end of the bulkhead 15 further extends outward to form a fixing pillar 15b, and the top of the fixing pillar 15b is rounded. Thus, when the end part of the workpiece is a cylindrical groove, the fixation can be realized by directly utilizing a cylindrical structure; moreover, the arrangement of the fillet can reduce the damage to the workpiece; in the embodiment of the disclosure, the end part of the workpiece can be further arranged into a structure of a circular truncated cone and a cylindrical groove, so that the contact area is increased, and the fixing reliability is improved.

Referring to fig. 2, in the embodiment of the present disclosure, regarding the fixing of the rotating disc 12, an end cover is further disposed at an end of the guiding cylinder 11 close to the rotating disc 12, the end cover is detachably fixed on the guiding cylinder 11, and the rotating disc 12 is rotatably connected to the end cover through a bearing. Through the arrangement, the ejector rod seat is convenient to assemble and maintain.

In the embodiment of the present disclosure, as shown in fig. 5, there is also disclosed a vertical milling machine table, which includes a fixed platform 100, an index head 200, and the above-mentioned ejector pin base 300, wherein:

the fixed platform 100 is installed on a vertical milling machine, and can rotate at an angle and adjust left and right and up and down positions, and the above structure is the prior art and is not described in detail herein;

the index head 200 is fixed at one end of the fixed platform 100 in the length direction, and is used for clamping a workpiece and adjusting the rotation angle of the workpiece, in the embodiment of the present disclosure, the index head 200 is also in the prior art, and can be used for fixing and adjusting different angles of the workpiece by locking after adjusting the angle after clamping the workpiece;

the ejector rod base 300 is fixed at the other end of the fixed platform 100, a choke plug of the ejector rod base 300 is arranged opposite to the dividing head 200, and the ejector rod base 300 is matched with the dividing head 200 to fix a workpiece.

In the embodiment of the present disclosure, the fixing platform 100 further has a clamping fixture 400, the clamping fixture 400 is detachably fixed between the index head 200 and the ejector rod base 300, and the height of the clamping fixture 400 is lower than the maximum clamping dimension of the index head 200; when some workpieces with smaller sizes are processed, the processing can be realized by clamping the fixture 400;

as shown in fig. 6 in particular, the clamping fixture 400 includes a backer 410, a clamping block 420 disposed opposite to the backer 410 and capable of moving toward or away from the backer 410, and a driving member 430 for driving the clamping block 420 to move. The driving member 430 can clamp the workpiece between the backer 410 and the clamping block 420 by the rotation of the screw and the rotational connection with the clamping block 420. The driving can also be realized by other structural forms, such as a hydraulic cylinder or a pneumatic cylinder, and the like; through the arrangement of the structure forms, the workbench can clamp workpieces of various structure forms, and the applicability of the machined workpieces is improved.

It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims. The scope of the disclosure is defined by the appended claims and equivalents thereof.

Claims

1. A jack stand, comprising:

the fixed base is fixed on the workbench;

the choke plug is coaxially and rotatably connected to the end part of the telescopic assembly, protruding out of the guide cylinder, and is in a circular truncated cone structure and used for tightly jacking a workpiece;

2. The ram holder of claim 1, wherein the telescoping assembly comprises a telescoping rod and a nut holder removably attached to an end of the telescoping rod, the telescoping rod having a cavity in an end thereof facing the nut holder into which the drive screw extends.

3. The ejector rod seat as recited in claim 2, wherein the locking mechanism is a stud screwed to the guide cylinder, and a top of the stud abuts against the telescopic rod.

4. The ejector rod seat as claimed in claim 2, wherein the locking mechanism comprises a first locking block and a second locking block which are arranged in the guide cylinder in a relatively sliding manner in a direction perpendicular to the telescopic rod, the first locking block and the second locking block are arranged oppositely, and a semi-circular groove matched with the section of the telescopic rod is arranged between the first locking block and the second locking block;

5. The ejector rod seat as claimed in claim 2, wherein a step cavity is formed in one end of the choke plug facing the guide cylinder, the telescopic rod extends into the step cavity, and a bearing set which is in clearance fit with the step cavity is fixed on the part of the telescopic rod extending into the step cavity.

6. The ejector rod carrier of claim 5, wherein said bearing set comprises a flat bearing and a thrust ball bearing.

7. The ejector rod seat as recited in claim 5, wherein the top end of the bulkhead further extends outward to form a fixed post, and the top of the fixed post is rounded.

8. The ejector rod seat as recited in claim 1, wherein an end cap is further provided at an end of the guide cylinder adjacent to the rotary plate, the end cap is detachably fixed to the guide cylinder, and the rotary plate is rotatably connected to the end cap through a bearing.

9. A vertical milling machine table, comprising:

a fixed platform;

the ejector rod seat as claimed in any one of claims 1 to 8, fixed at the other end of the fixed platform, and the bulkhead of the ejector rod seat is arranged opposite to the dividing head, and the ejector rod seat and the dividing head are matched to realize the fixation of a workpiece.

10. The vertical milling machine table according to claim 9, wherein the fixed platform is further provided with a clamping jig, the clamping jig is detachably fixed between the dividing head and the ejector rod seat, and the height of the clamping jig is lower than the maximum clamping size of the dividing head;