CN112548601A - Milling machine with ram maintaining mechanism - Google Patents
Milling machine with ram maintaining mechanism Download PDFInfo
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- CN112548601A CN112548601A CN201910853488.5A CN201910853488A CN112548601A CN 112548601 A CN112548601 A CN 112548601A CN 201910853488 A CN201910853488 A CN 201910853488A CN 112548601 A CN112548601 A CN 112548601A
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- ram
- carriage
- maintaining
- milling machine
- guide rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
- B23Q1/76—Steadies; Rests
- B23Q1/766—Steadies or rests moving together with the tool support
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- Mechanical Engineering (AREA)
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Abstract
The invention is a milling machine with ram maintaining mechanism, comprising: a carriage having a carriage guide rail; the ram is provided with a ram guide part which is arranged on the carriage guide rail in a sliding way and a ram side part which is positioned outside the carriage guide rail; the maintaining mechanism comprises a connecting piece and a maintaining module, wherein the connecting piece is provided with a sliding part arranged on the top surface of the carriage or the bottom surface of the carriage in a sliding way and a connecting part, and the maintaining module is fixedly connected between the connecting part and the side part of the ram and used for pulling or propping the ram. Therefore, the ram is pulled or pushed by the maintaining module arranged between the connecting piece and the ram, so that the influence of the gravity and the gravity center of the ram on the ram is overcome, the ram is prevented from generating great pressure on the carriage, the deformation of the carriage guide rail is reduced, and the processing precision is kept.
Description
Technical Field
The present invention relates to a milling machine, and more particularly, to a milling machine having a ram maintaining mechanism.
Background
A milling machine is a machine tool which is mainly used for metal cutting, and is used for cutting planes or milling a formed surface, a spiral groove or a tooth profile of a gear, etc. by using a milling cutter with a special shape. During milling, the workpiece is mounted on the worktable or indexing head, the milling cutter performs rotary cutting motion, and the worktable performs feed motion. However, it still has the following drawbacks to be improved in the actual process.
As shown in fig. 1A and 1B, the carriage 11 of the bed-washing machine has a carriage rail 111, the ram 12 of the milling machine has a ram guide 121 slidably disposed on the carriage rail 111, so that the ram 12 can reciprocate along the carriage rail 111 in the Y direction, however, as shown in fig. 1C, since the ram 12 is disposed with the processing spindle 13, and the ram 12 slides on the carriage rail 111 only by the ram guide 121 on one side, and the ram side 122 of the ram 12 outside the carriage rail 111 is in a suspended state, the ram 12 is easily influenced by gravity and its own gravity center during the process of being stationary or reciprocating, so that the ram 12 exerts a great pressure on the carriage 11, and the ram 12 reciprocates under such a great pressure, and tends to deform the carriage rail 111, and the deformation state is shown by the phantom line of fig. 1, which shows that the carriage rail 111 is damaged at both ends due to abrasion, further, the ram 12 does not slide smoothly relative to the carriage 11, and as shown in fig. 1C and 1D, after the ram 12 drives the machining spindle 13 to move forward and backward, the verticality of the surface of the cutter head 14 on the machining spindle 13 is changed due to gravity, wear of the carriage guide rail 111, and other factors, so that the machined surface 151 of the workpiece 15 is formed, which is not in accordance with actual requirements.
Disclosure of Invention
The invention aims to provide a milling machine with a ram maintaining mechanism, which is mainly used for pulling or propping the ram by the maintaining mechanism, so that the ram is prevented from generating great pressure on a carriage, the deformation of a carriage guide rail is reduced, and the processing precision is maintained.
To achieve the above object, the present invention provides a milling machine with ram maintaining mechanism, comprising: the carriage is provided with a carriage top surface and a carriage guide rail; the ram is arranged on the carriage in a reciprocating displacement manner and is provided with a ram guide part arranged on the carriage guide rail in a sliding manner and a ram side part positioned outside the carriage guide rail; the maintaining mechanism comprises a connecting piece and a maintaining module, the connecting piece is provided with a sliding part arranged on the top surface of the carriage in a sliding mode and a connecting part connected with the sliding part, and the maintaining module is fixedly connected between the connecting part and the side part of the ram and used for pulling the ram.
The invention has the following effects: the design that the connecting piece with one end capable of being arranged on the carriage in a sliding manner is matched with the maintaining module arranged between the connecting piece and the ram, so that the ram is pulled by the maintaining module when the ram is static or slides, the influence of the gravity and the gravity center of the ram on the ram is further overcome, the extremely large pressure of the ram on the carriage is avoided, the deformation of a carriage guide rail is reduced, and the processing precision is kept.
Preferably, the carriage further has two slide rail portions provided on the top surface of the carriage, and the maintaining mechanism further has two slide blocks fixedly provided on the slide portion of the connecting member, and the two slide blocks are provided on the two slide rail portions in a corresponding sliding manner.
Preferably, the maintaining module has a first pulling member, a second pulling member and a pulling unit, the first pulling member has a first fixing portion fixed to the side portion of the ram and a first limiting portion far away from the side portion of the ram, the second pulling member has a second fixing portion fixed to the connecting portion of the connecting member and a second limiting portion facing the first limiting portion, and the pulling unit is disposed between the first limiting portion and the second limiting portion.
Preferably, the pulling and holding unit is a nitrogen spring and has a cylinder body and a piston rod movably installed in the cylinder body and partially protruding out of the top of the cylinder body, the cylinder body is fixedly disposed on the first position-limiting portion, and the piston rod is fixedly disposed on the second position-limiting portion.
Preferably, the tension holding unit is an extension spring, a hydraulic spring, or a gas spring.
In addition, to achieve the above object, the present invention provides a milling machine having a ram maintaining mechanism, including: the carriage is provided with a carriage bottom surface and a carriage guide rail; the ram is arranged on the carriage in a reciprocating displacement manner and is provided with a ram guide part arranged on the carriage guide rail in a sliding manner and a ram side part positioned outside the carriage guide rail; the maintaining mechanism comprises a connecting piece and a maintaining module, the connecting piece is provided with a sliding part arranged on the bottom surface of the carriage in a sliding mode and a connecting part connected with the sliding part, and the maintaining module is fixedly connected between the connecting part and the side part of the ram and used for supporting the ram.
The invention has the following effects: the design that the connecting piece with one end capable of being arranged on the carriage in a sliding manner is matched with the maintaining module arranged between the connecting piece and the ram, so that the ram is supported by the maintaining module when the ram is static or slides, the influence of the gravity and the gravity center of the ram on the ram is further overcome, the extremely large pressure of the ram on the carriage is avoided, the deformation of a carriage guide rail is reduced, and the processing precision is kept.
Preferably, the carriage further has two slide rail portions provided on a bottom surface of the carriage, and the maintaining mechanism further has two slide blocks fixedly provided on the slide portion of the connecting member, and the two slide blocks are slidably provided on the two slide rail portions correspondingly.
Preferably, the maintaining module has a supporting unit, and the supporting unit is fixedly connected between the connecting portion and the side portion of the ram.
Preferably, the jacking unit is a nitrogen spring and has a cylinder and a piston rod movably mounted in the cylinder and partially protruding from the top of the cylinder, the cylinder is fixedly mounted on the connecting portion, and the piston rod is fixedly connected to the side of the ram.
Preferably, the jacking unit is an extension spring, a hydraulic spring, or a gas spring.
Drawings
FIG. 1A is a side view of a carriage and ram combination of a prior art milling machine;
FIG. 1B is a schematic diagram illustrating a damaged state of a carriage guide rail of a carriage according to the prior art;
FIG. 1C is a schematic view (I) of a milling machine in the prior art, which shows a state that a machined surface is formed in a zigzag shape when a ram drives a machining spindle to machine at a first position;
FIG. 1D is a schematic view (two) of milling machine in the prior art, showing a state that a machined surface is formed in a zigzag shape when the ram drives the machining spindle to machine at a second position;
FIG. 2 is a partial exploded perspective view of the first embodiment of the present invention;
FIG. 3 is a partial perspective assembly view of the first embodiment of the present invention;
FIG. 4 is a partial side view of the first embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4;
FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 4;
FIG. 7 is a side view of the second embodiment of the present invention in combination; and
fig. 8 is a combined side view of a third embodiment of the present invention.
Description of the symbols in the drawings:
the prior art is as follows:
Ram guide 121 of ram 12
Ram side 122Y direction
Machining spindle 13 cutter head 14
Processed surface 151 of processed object 15
The invention comprises the following steps:
Carriage guide rail 22Y direction
Ram 30 ram guide 31
Ram side 32 maintaining mechanism A
Sliding part 41 of connecting piece 40
Connecting portion 42 maintains module 50
First fixing part 511 of first pulling and holding piece 51
The first position-limiting part 512 and the second pulling-holding part 52
The second fixing portion 521 and the second position-limiting portion 522
Piston rod 532 jacking unit 54
Screw 92
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the following description, similar components are denoted by the same reference numerals.
As shown in fig. 2 to 6, a first embodiment of the present invention provides a milling machine with a ram maintaining mechanism, which mainly comprises a carriage 20, a ram 30 and a maintaining mechanism a, and since the milling machine further includes other components, the structure and configuration of the other components are not the main technical point of the present invention and are common devices of a general milling machine, the present invention will not be further described.
Wherein:
a carriage 20 having a carriage top surface 21 and a carriage guide rail 22; in this embodiment, the carriage 20 is disposed along the Y direction, and the carriage top surface 21 has two parallel slide rail portions 23 along the Y direction.
A ram 30, which is provided on the carriage 20 so as to be capable of reciprocating, and which has a ram guide part 31 slidably provided on the carriage guide rail 22 and a ram side part 32 located outside the carriage guide rail 22 so that the ram side part 32 is suspended; in this embodiment, the ram 30 is further provided with a processing spindle 91 therein.
The maintaining mechanism A comprises a connecting piece 40 and a maintaining module 50, wherein the connecting piece 40 is provided with a sliding part 41 arranged on the top surface 21 of the carriage in a sliding way and a connecting part 42 connected with the sliding part 41, and the maintaining module 50 is fixedly connected between the connecting part 42 and the side part 32 of the ram and used for pulling the ram 30; in this embodiment, the maintaining mechanism a further has two sliding blocks 60 fixed on the sliding portion 41 of the connecting member 40, the two sliding blocks 60 are correspondingly slidably disposed on the two sliding rail portions 23, the maintaining module 50 has a first pulling member 51, a second pulling member 52 and a pulling unit 53, the first pulling member 51 is a u-shaped member, and has a first fixing portion 511 fixed on the ram side portion 32 by a screw 92 and a first limiting portion 512 far away from the ram side portion 32, the second pulling member 52 is an ㄩ -shaped member, and has a second fixing portion 521 fixed on the connecting portion 42 of the connecting member 40 by the screw 92 and a second limiting portion 522 facing the first limiting portion 512, the pulling unit 53 is disposed between the first limiting portion 512 and the second limiting portion 522; in this embodiment, the pulling and holding unit 53 is a nitrogen spring and has a cylinder 531 and a piston rod 532 movably installed in the cylinder 531 and partially protruding out of the top of the cylinder 531, the cylinder 531 is fixed on the first position-limiting portion 512, the piston rod 532 is fixed on the second position-limiting portion 522, accordingly, the pulling and holding unit 53 has an initial pressure, and when the piston rod 532 is pressed down, the force of the nitrogen spring is increased; the structure and the operation of the same nitrogen spring are not the main technical key points of the present application, and therefore, the present application is not further described.
It should be noted that, in the embodiment, the pulling unit 53 is exemplified by a nitrogen spring, but not limited thereto, and may be an extension spring, a hydraulic spring, or a gas spring, as long as an external force is provided to enable the connecting member 40 of the maintaining mechanism a to generate an effect of pulling the ram 30. Further, when the ram 30 is reciprocally displaced with respect to the carriage 20, the holding mechanism a is simultaneously reciprocally displaced with respect to the carriage 20.
The above is a configuration description of each main component of the first embodiment of the present invention. The operation and efficacy of the present invention are described below.
As shown in fig. 3 and 5, the sliding part 41 of the connecting member 40 of the maintaining structure a is slidably disposed on the carriage top surface 21, and the maintaining module 50 is disposed between the connecting part 42 of the connecting member 40 and the suspended ram side part 32, and the maintaining module 50 provides the force required by the connecting member 40 to pull the ram side part 32, so that the ram 30 is pulled by the maintaining module 50 when the ram 30 is still or slides, thereby overcoming the influence of gravity and gravity on the ram 30, avoiding the ram 30 from exerting a great pressure on the carriage 20, reducing the deformation of the carriage 20 guide rail, and maintaining the processing accuracy.
More specifically, the first pulling member 51 of the maintaining module 50 is fixed to the ram side 32 such that the first pulling member 51 and the ram 30 are seen as one body, the second pulling member 52 is fixed to the connecting portion 42 of the connecting member 40 such that the second pulling member 52 and the connecting member 40 are seen as one body, and a pulling unit 53, which is a nitrogen spring, is provided between the first pulling member 51 and the second pulling member 52, the pulling unit 53 has an initial pressure, and when the piston rod 532 is pressed down, the force of the nitrogen spring is increased, thereby providing the force required by the connecting member 40 to pull the ram side 32 in a suspended state, and finally maintaining the processing accuracy.
As shown in fig. 7, a second embodiment of the present invention provides a milling machine with a ram maintaining mechanism, which is also composed of a carriage 20, a ram 30 and a maintaining mechanism B, and the configuration and the function are the same as those of the first embodiment, so that the detailed description is omitted, and the difference between the second embodiment and the first embodiment lies in:
the carriage 20 has a carriage bottom surface 24, and the carriage bottom surface 24 has two parallel slide rail portions 25 extending in the Y direction.
The maintaining mechanism B comprises a connecting piece 40 and a maintaining module 50, wherein the connecting piece 40 is provided with a sliding part 41 arranged on the bottom surface 24 of the carriage in a sliding way through a sliding block 60 and a connecting part 42 connected with the sliding part 41; the maintaining module 50 is fixed between the connecting portion 42 and the ram side portion 32 for supporting the ram 30. In this embodiment, the holding module 50 is a holding unit 54 fixed between the connecting portion 42 and the ram side portion 32, that is, the holding unit 54 is a nitrogen spring and has a cylinder 541 and a piston rod 542 movably installed in the cylinder 541 and partially protruding from the top of the cylinder 541, the cylinder 541 is fixed at the connecting portion 42, and the piston rod 542 is fixed at the ram side portion 32.
Accordingly, in the second embodiment of the present invention, the retaining mechanism B is disposed below the carriage 20 and the ram 30, and the ram 30 is supported and supported by the supporting unit 54, which is a nitrogen spring, and particularly, the suspended ram side 32 is effectively supported by the supporting unit 54, so that the influence of gravity and center of gravity on the ram 30 is overcome, thereby effectively avoiding the ram 30 from exerting a great pressure on the carriage 20, reducing the deformation of the carriage rail 25, and maintaining the processing accuracy.
As shown in fig. 8, a third embodiment of the present invention provides a milling machine with a ram maintaining mechanism, which is composed of a carriage 20, a ram 30 and a maintaining mechanism A, B, and the configuration and the function are the same as those of the first and second embodiments, so the description is omitted, and the difference between the third embodiment and the first and second embodiments is:
the retaining mechanisms A, B are two sets, wherein the retaining mechanism a of one set is the same as the first embodiment and includes the connecting member 40 and the retaining module 50, the retaining mechanism 50 is disposed above the carriage 20 and the ram 30, and the retaining mechanism B of the other set is the same as the second embodiment and includes the connecting member 40 and the retaining module 50 of the other type, the retaining mechanism B is disposed below the carriage 20 and the ram 30, so that the ram 30 can be pulled and held by the retaining mechanism a of one set, and the ram 30 can be effectively supported and supported by the retaining mechanism B of the other set, so as to overcome the influence of gravity and the center of gravity of the ram 30, effectively avoid the ram 30 from causing a great pressure on the carriage 20, reduce the deformation of the carriage guide rail 22, and maintain the processing precision.
In summary, the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A milling machine having a ram retaining mechanism, comprising:
the carriage is provided with a carriage top surface and a carriage guide rail;
the ram is arranged on the carriage in a reciprocating displacement manner and is provided with a ram guide part arranged on the carriage guide rail in a sliding manner and a ram side part positioned outside the carriage guide rail;
the maintaining mechanism comprises a connecting piece and a maintaining module, the connecting piece is provided with a sliding part arranged on the top surface of the carriage in a sliding mode and a connecting part connected with the sliding part, and the maintaining module is fixedly connected between the connecting part and the side part of the ram and used for pulling the ram.
2. The milling machine with ram maintaining mechanism as claimed in claim 1, wherein the carriage further has two slide rail portions provided on the top surface of the carriage, and the maintaining mechanism further has two slide blocks fixedly provided on the slide portion of the connecting member, and the two slide blocks are slidably provided on the two slide rail portions correspondingly.
3. The milling machine with a ram maintaining mechanism according to claim 1, wherein the maintaining module has a first pulling member having a first fixing portion to which the side portion of the ram is fixed and a first stopper portion away from the side portion of the ram, a second pulling member having a second fixing portion to which the connecting portion of the connecting member is fixed and a second stopper portion facing the first stopper portion, and a pulling unit provided between the first stopper portion and the second stopper portion.
4. The milling machine with ram maintaining mechanism according to claim 3, wherein the pulling unit is a nitrogen spring and has a cylinder body and a piston rod movably installed in the cylinder body and partially protruding from the top of the cylinder body, the cylinder body is fixed at the first position-limiting portion, and the piston rod is fixed at the second position-limiting portion.
5. The milling machine with ram maintenance mechanism of claim 3, wherein the pulling unit is an extension spring, a hydraulic spring, or a gas spring.
6. A milling machine having a ram retaining mechanism, comprising:
the carriage is provided with a carriage bottom surface and a carriage guide rail;
the ram is arranged on the carriage in a reciprocating displacement manner and is provided with a ram guide part arranged on the carriage guide rail in a sliding manner and a ram side part positioned outside the carriage guide rail;
the maintaining mechanism comprises a connecting piece and a maintaining module, the connecting piece is provided with a sliding part arranged on the bottom surface of the carriage in a sliding mode and a connecting part connected with the sliding part, and the maintaining module is fixedly connected between the connecting part and the side part of the ram and used for supporting the ram.
7. The milling machine with ram maintaining mechanism as claimed in claim 6, wherein the carriage further has two slide rail portions provided on a bottom surface of the carriage, the maintaining mechanism further has two slide blocks fixedly provided on the slide portion of the connecting member, and the two slide blocks are slidably provided on the two slide rail portions correspondingly.
8. The milling machine with ram retaining mechanism of claim 7, wherein the retaining module has a jacking unit that is secured between the connecting portion and the ram side portion.
9. The milling machine with ram maintaining mechanism as claimed in claim 8, wherein the jacking unit is a nitrogen spring and has a cylinder and a piston rod movably mounted in the cylinder and partially protruding from the top of the cylinder, the cylinder is fixed to the connecting portion, and the piston rod is fixed to the side of the ram.
10. The milling machine with ram maintaining mechanism according to claim 8, wherein the jacking unit is an extension spring, a hydraulic spring, or a gas spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910853488.5A CN112548601A (en) | 2019-09-10 | 2019-09-10 | Milling machine with ram maintaining mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910853488.5A CN112548601A (en) | 2019-09-10 | 2019-09-10 | Milling machine with ram maintaining mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112548601A true CN112548601A (en) | 2021-03-26 |
Family
ID=75029232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910853488.5A Pending CN112548601A (en) | 2019-09-10 | 2019-09-10 | Milling machine with ram maintaining mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112548601A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178834A (en) * | 1977-06-23 | 1979-12-18 | The Warner & Swasey Company | Machine tool having deflection compensation for tool support arm |
| CN102039542A (en) * | 2010-11-25 | 2011-05-04 | 天通吉成机器技术有限公司 | Gravity center follow-up balance compensating device of floor type boring and milling machine |
| CN102398190A (en) * | 2011-10-12 | 2012-04-04 | 沈机集团昆明机床股份有限公司 | Large numerical control floor type boring and milling machine ram deflection compensating device |
-
2019
- 2019-09-10 CN CN201910853488.5A patent/CN112548601A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178834A (en) * | 1977-06-23 | 1979-12-18 | The Warner & Swasey Company | Machine tool having deflection compensation for tool support arm |
| CN102039542A (en) * | 2010-11-25 | 2011-05-04 | 天通吉成机器技术有限公司 | Gravity center follow-up balance compensating device of floor type boring and milling machine |
| CN102398190A (en) * | 2011-10-12 | 2012-04-04 | 沈机集团昆明机床股份有限公司 | Large numerical control floor type boring and milling machine ram deflection compensating device |
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Application publication date: 20210326 |