CN213411621U

CN213411621U - Tailstock with replaceable ejector pin for machining

Info

Publication number: CN213411621U
Application number: CN202020355601.5U
Authority: CN
Inventors: 冯彩月
Original assignee: Shanghai Zhuangchuang Light Alloy Co ltd
Current assignee: Shanghai Zhuangchuang Light Alloy Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-11
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a tailstock of removable thimble is used in machining relates to the machining field. This tailstock of removable thimble is used in machining, the through-hole has been seted up to base inside, and fixed surface is connected with the support frame on the base, and fixed surface is connected with the shell on the support frame, and shell left end face fixedly connected with sleeve, sleeve link up the shell, lateral wall fixedly connected with hydraulic press around the shell. The device is installed at the lathe tail end during use, the thimble divides rough machining thimble and finish machining thimble, through electrically controlled device, the hydraulic press passes through the hydraulic stem and removes the solid fixed ring of thimble along the second slide rail, it moves to and sleeve with the axle center position to drive the thimble, the motor rotation drives the threaded rod and promotes the movable block, the movable block impels forward and drives the thimble and pass the ejecting shell of sleeve, the thimble supports the machined part and realizes processing, when rough machining accomplishes, withdraw and change the thimble with the principle, the characteristics of changing the thimble under the condition that does not change work piece centering have, machining precision is high, the advantage of the operation of being convenient for.

Description

Tailstock with replaceable ejector pin for machining

Technical Field

The utility model relates to a machining technical field specifically is a tailstock of removable thimble is used in machining.

Background

The machine tool plays an important role in the construction of national economy modernization, is equipment for turning a rotating workpiece by mainly using a lathe tool, mainly comprises a supporting part, a speed change mechanism, a feeding mechanism, a spindle box, a lubricating system, a thimble tailstock and the like, and a plurality of methods for processing mechanical parts in modern machine manufacturing comprise the following steps: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool.

The thimble device is mainly used for assisting and fixing the center of a shaft part by a thimble when the shaft part is processed by a machine tool, the centering of a workpiece supported by the fixed thimble is correct, the thimble is short and has good rigidity when being lifted out of a sleeve, but is not suitable for high-speed rotation, and is not beneficial to the improvement of the surface quality of the processed workpiece.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a machining is with tailstock of removable thimble has solved the problem that above-mentioned background art provided.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a tailstock with a replaceable thimble for machining comprises a base, wherein a through hole is formed in the base, a support frame is fixedly connected to the upper surface of the base, a shell is fixedly connected to the upper surface of the support frame, a sleeve is fixedly connected to the left end surface of the shell and penetrates through the shell, hydraulic rams are fixedly connected to the front side wall and the rear side wall of the shell, a hydraulic rod is fixedly connected to the inner part of the hydraulic ram and penetrates through the shell, a first slide rail is fixedly connected to one end, away from the shell, of the hydraulic rod, a thimble fixing ring is sleeved on the outer surface of the first slide rail, a thimble is fixedly connected to the upper end surface of the thimble fixing ring, a slide groove is formed in the lower end surface of the thimble fixing ring, a second slide rail is inserted into the slide groove, a fixed block is, one end of the threaded rod is fixedly connected with a motor.

Preferably, the through-hole is provided with two, and the through-hole link up the base, and base, support frame and shell casting as an organic whole, the solid fixed ring of thimble is provided with two, connects finish machining thimble and rough machining thimble respectively.

Preferably, the axis of the sleeve and the axis of the thimble are located on the same horizontal line, and the size of the outer wall of the thimble is consistent with that of the inner wall of the sleeve.

Preferably, the hydraulic press comprises a hydraulic device and a hydraulic rod inside, and the shell is provided with a hole at the position of the hydraulic press.

Preferably, the second slide rail that fixed block and movable block upper surface set up is the same size, all is provided with the screens groove between fixed block and the movable block, and thimble fixed ring, movable block and fixed block bottom width are unanimous.

Preferably, the fixed block is fixedly connected with the bottom wall in the shell, and a hole is formed in the inner side wall of one end, located at the sleeve, of the shell and meshed with the threaded rod.

(III) advantageous effects

The utility model provides a tailstock of removable thimble is used in machining. The method has the following beneficial effects:

1. the tailstock capable of replacing the ejector pin for machining is mounted at the tail end of a machine tool when in use, a slide rod of the machine tool can penetrate through a through hole, the ejector pin is divided into a rough machining ejector pin and a finish machining ejector pin, the hydraulic press moves the ejector pin fixing ring along a second slide rail through the hydraulic rod and drives the ejector pin to move to the position coaxial with a sleeve, the motor rotates to drive a threaded rod to push a moving block, the moving block is pushed forward under the limit of the two fixing blocks, the ejector pin penetrates through an ejection shell of the sleeve, the movement stops when the moving block contacts the inner wall of the shell, the motor stops rotating and is locked, the ejector pin supports a machined part to realize machining, the tailstock capable of replacing the ejector pin has the advantage.

2. This tailstock of removable thimble for machining uses when rough machining accomplishes, the device passes through electrically controlled device and moves backward, the motor is rotatory to drive the threaded rod and pulls the movable block backward, withdraw the thimble, the movable block supports stopper motor stall, with the same reason, the hydraulic stem promotes the solid fixed ring of thimble, make the finish machining thimble move to sleeve axle center department, then drive the threaded rod through the motor is rotatory, ejecting thimble realizes the finish machining, the problem that the thimble leads to the work piece centering unfixed is changed to in use has been solved, the advantage of convenient rough and finish machining change has been had, and the work efficiency is improved.

Drawings

FIG. 1 is an orthographic three-axis mapping of the structure of the present invention;

FIG. 2 is an internal view of the structure of the present invention;

FIG. 3 is a front view of the structure of the present invention;

FIG. 4 is a top view of the present invention;

fig. 5 is a left side view of the structure of the present invention.

The device comprises a base 1, a through hole 2, a support frame 3, a shell 4, a sleeve 5, a hydraulic press 6, a hydraulic rod 7, a first slide rail 8, a thimble fixing ring 9, a thimble 10, a sliding chute 11, a second slide rail 12, a fixed block 13, a movable block 14, a limiting block 15, a threaded rod 16 and a motor 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a tailstock device with a replaceable thimble for machining comprises a base 1, wherein a through hole 2 is formed in the base 1, two through holes 2 are formed in each through hole 2, the through holes 2 penetrate through the base 1, a support frame 3 and a shell 4 are cast integrally, the tailstock device is installed at the tail end of a machine tool, a machine tool slide rod can penetrate through the through holes 2, the support frame 3 is fixedly connected to the upper surface of the base 1, a shell 4 is fixedly connected to the upper surface of the support frame 3, a sleeve 5 is fixedly connected to the left end face of the shell 4, the sleeve 5 plays a role in stabilizing when the thimble 10 extends out, the axis of the sleeve 5 and the axis of the thimble 10 are located on the same horizontal line, the size of the outer wall of the thimble 10 is consistent with the size of the inner wall of the sleeve 5, the thimble 5 penetrates through the shell 4, a hydraulic press 6 is fixedly connected to the, the hydraulic press 6 is arranged in the hole, a hydraulic rod 7 is fixedly connected inside the hydraulic press 6, the hydraulic rod 7 penetrates through the shell 4, one end, away from the shell 4, of the hydraulic rod 7 is fixedly connected with a first slide rail 8 to limit the thimble fixing ring 9, so that dislocation is not easy to occur during back and forth movement, the outer surface of the first slide rail 8 is sleeved with two thimble fixing rings 9, the upper end surface of each thimble fixing ring 9 is fixedly connected with a thimble 10, the thimble is divided into a rough machining thimble and a finish machining thimble, the lower end surface of each thimble fixing ring 9 is provided with a chute 11, a second slide rail 12 is inserted into each chute 11, the lower surface of each second slide rail 12 is fixedly connected with a fixed block 13, one end of each fixed block 13 extends to the inner side wall of the shell 4, the inner walls of the two fixed blocks 13 are slidably connected with a moving block 14, the fixed blocks, the movable block 14 is enabled to move between the two fixed blocks 13 all the time, the widths of the thimble fixing ring 9, the movable block 14 and the bottoms of the fixed blocks 13 are the same, a limit block 15 is fixedly connected to one end, far away from the sleeve 5, of the inner bottom wall of the shell 4, the moving distance of the movable block 14 is limited, a threaded rod 16 is connected in the movable block 14 in a through mode, a threaded groove meshed with the threaded rod 16 is formed in the movable block 14, the fixed blocks 13 and the inner bottom wall of the shell 4 are fixedly connected, a hole is formed in the inner side wall, located at one end of the sleeve 5, of the shell 4 and meshed with the threaded rod 16, a tail seat of a motor 17 is fixedly connected to one end of the threaded rod 16, the thimble 10 fixing ring is moved along a second sliding rail 12 through a hydraulic rod, the thimble 10 is driven to move to the position which is coaxial, when the moving block 14 contacts the inner wall of the shell 4, the movement stops, the motor 17 stops rotating and is locked, and the thimble 10 supports the workpiece to be processed.

The working principle is as follows:

when the device is used, the device is arranged at the tail end of a machine tool, a slide rod of the machine tool can penetrate through a through hole 2, the thimble is divided into a rough machining thimble and a finish machining thimble, a hydraulic press 6 drives a thimble 10 fixing ring to move along a second slide rail 12 through a hydraulic rod to drive the thimble 10 to move to the position coaxial with a sleeve 5, a motor 17 rotates to drive a threaded rod 16 to push a moving block 14, the moving block 14 is pushed forwards under the limit of two fixing blocks 13, the thimble 10 penetrates through the sleeve 5 to be ejected out of a shell 4, the moving block 14 stops moving when contacting the inner wall of the shell 4, the motor 17 stops rotating and is locked, the thimble 10 supports a machined part to realize machining, when the rough machining is completed, the device moves backwards through an electric control device, the motor 17 rotates to drive the threaded rod 16 to pull the moving block 14 backwards to withdraw the thimble 10, and the moving, in a similar way, the hydraulic rod 7 pushes the thimble fixing ring 9 to move the finish machining thimble to the axis of the sleeve 5, and then the motor 17 rotates to drive the threaded rod 16 to eject the thimble 10 to realize finish machining.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tailstock of removable thimble for machining, includes base (1), its characterized in that: the hydraulic press is characterized in that a through hole (2) is formed in the base (1), the upper surface of the base (1) is fixedly connected with a support frame (3), the upper surface of the support frame (3) is fixedly connected with a shell (4), the left end face of the shell (4) is fixedly connected with a sleeve (5), the sleeve (5) penetrates through the shell (4), the front side wall and the rear side wall of the shell (4) are fixedly connected with a hydraulic press (6), a hydraulic rod (7) is fixedly connected in the hydraulic press (6), and the hydraulic rod (7) penetrates through the shell;

the hydraulic rod (7) is far away from a first slide rail (8) fixedly connected with one end of the shell (4), a thimble fixing ring (9) is sleeved on the outer surface of the first slide rail (8), a thimble (10) is fixedly connected with the upper end face of the thimble fixing ring (9), a sliding groove (11) is formed in the lower end face of the thimble fixing ring (9), a second slide rail (12) is inserted into the sliding groove (11), a fixed block (13) is fixedly connected with the lower surface of the second slide rail (12), a movable block (14) is connected with the front wall and the rear wall of the fixed block (13) in a sliding mode, a limiting block (15) is fixedly connected with one end of the shell (4) and is far away from the sleeve (5), a threaded rod (16) is connected.

2. The tailstock with a replaceable thimble for machining according to claim 1, wherein: the improved ejector pin fixing device is characterized in that two through holes (2) are formed, the through holes (2) penetrate through the base (1), the support frame (3) and the shell (4) are cast integrally, and two ejector pin fixing rings (9) are arranged and are respectively connected with a finish machining ejector pin and a rough machining ejector pin.

3. The tailstock with a replaceable thimble for machining according to claim 1, wherein: the axis of the sleeve (5) and the axis of the thimble (10) are positioned on the same horizontal line, and the size of the outer wall of the thimble (10) is consistent with that of the inner wall of the sleeve (5).

4. The tailstock with a replaceable thimble for machining according to claim 1, wherein: the hydraulic press (6) comprises a hydraulic device and a hydraulic rod (7) inside, and a hole is formed in the position, located on the hydraulic press (6), of the shell (4).

5. The tailstock with a replaceable thimble for machining according to claim 1, wherein: the fixed block (13) and the second sliding rail (12) arranged on the upper surface of the moving block (14) are the same in size, clamping grooves are formed between the fixed block (13) and the moving block (14), and the widths of the thimble fixing ring (9), the moving block (14) and the bottom of the fixed block (13) are the same.

6. The tailstock with a replaceable thimble for machining according to claim 1, wherein: the fixed block (13) is fixedly connected with the inner bottom wall of the shell (4), and the inner side wall of the shell (4) at one end of the sleeve (5) is provided with a hole which is meshed with the threaded rod (16).