CN217018632U - Pre-tightening type planer type milling machine spindle box - Google Patents
Pre-tightening type planer type milling machine spindle box Download PDFInfo
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- CN217018632U CN217018632U CN202220294852.6U CN202220294852U CN217018632U CN 217018632 U CN217018632 U CN 217018632U CN 202220294852 U CN202220294852 U CN 202220294852U CN 217018632 U CN217018632 U CN 217018632U
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- pressing plate
- milling machine
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Abstract
The utility model relates to the technical field of machine tools, in particular to a spindle box of a pre-tightening type planomiller; the precision of the spindle box during cutting can be improved, the operation is stable, the guide rail is uniformly abraded, and the guide rail clearance is automatically compensated; the elastic pre-tightening mechanism comprises a pressing plate and a first pre-tightening adjusting mechanism arranged on the pressing plate, the pressing plate is fixedly arranged on the mounting table, the first pre-tightening adjusting mechanism comprises a top block, a threaded sleeve and an elastic assembly, a mounting cavity is arranged on the pressing plate, the top block is slidably arranged in the mounting cavity, the threaded sleeve is screwed in the mounting cavity, and the top block is connected with the top block through the elastic assembly.
Description
Technical Field
The utility model relates to the technical field of machine tools, in particular to a pre-tightening type planer type milling machine spindle box.
Background
When the planer type milling machine is processed, a spindle box and a transverse sliding plate have a sliding motion relation, a gap is required to be formed between guide rail pairs when the planer type milling machine moves, and the spindle box cannot move accurately due to an overlarge guide rail gap, so that the processing precision is influenced; the friction resistance is larger due to the undersized guide rail clearance, the load of the motor is larger, and the guide rail pair is quickly abraded. The traditional guide rail pair mostly adopts a method of adjusting the inclined iron to control the guide rail gap, although the guide rail gap can be conveniently adjusted, the inclined iron is fixed between the kinematic pairs by the end face adjusting screw, so the inclined iron is easy to move and uneven in abrasion during actual movement, and the gap can only be obtained again during adjustment, and cannot be automatically compensated.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the pre-tightening type planer type milling machine spindle box which is capable of improving the cutting precision of the spindle box, is stable in operation, is uniform in guide rail abrasion and is capable of automatically compensating the guide rail clearance.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: the elastic pre-tightening mechanism comprises a pressing plate and a first pre-tightening adjusting mechanism arranged on the pressing plate, the pressing plate is fixedly arranged on the mounting table, the first pre-tightening adjusting mechanism comprises a top block, a threaded sleeve and an elastic component, a mounting cavity is arranged on the pressing plate, the top block can be slidably arranged in the mounting cavity, the threaded sleeve is screwed in the mounting cavity, and the top block is connected with the top block through the elastic component; the elastic component can adopt a disc spring, a spring or other elastic sheets with axial elasticity, and the like, and the disc spring is preferably adopted.
Preferably, a plurality of groups of second pre-tightening adjusting mechanisms with the same structure as the first pre-tightening adjusting mechanisms are mounted on the side wall of the sliding chute.
Preferably, rollers are rotatably mounted on the top blocks of the first pre-tightening adjusting mechanism and the second pre-tightening adjusting mechanism.
Preferably, a plurality of groups of uniformly distributed straight gibs are installed on the inner side wall of the sliding groove.
Preferably, the pressing plate and the straight gib are of an integral straight-face structure.
(III) advantageous effects
Compared with the prior art, the utility model provides a pre-tightening type planer type milling machine spindle box, which has the following beneficial effects: according to the pre-tightening type planer type milling machine spindle box, the deformation of the elastic component can be controlled by adjusting the threaded sleeve, and then the pre-tightening force is controlled; when the guide rail is abraded, the elastic component enables the ejector block to always press the guide rail on the spindle box to automatically compensate the gap, the elastic component can play a role in absorbing shock, the running stability of the spindle box is improved, the cutting precision of the spindle box is improved, the guide rail on the spindle box is abraded uniformly, and the gap between the guide rail and the sliding groove on the spindle box is automatically compensated.
Drawings
FIG. 1 is a schematic perspective view of the spindle box and the mounting table of the present invention;
FIG. 2 is a perspective view of the mounting table of the present invention;
FIG. 3 is a schematic sectional plan view of the first and second pretension adjustment mechanisms of the present invention;
in the drawings, the reference numbers: 1. a main spindle box; 2. an installation table; 3. a chute; 4. pressing a plate; 5. a first pretension adjustment mechanism; 6. a top block; 7. a threaded sleeve; 8. an elastic member; 9. a second pretension adjusting mechanism; 10. a roller; 11. and (5) straight embedding strips.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the pre-tightening type spindle box of the gantry milling machine comprises a spindle box 1, an installation table 2 and an elastic pre-tightening mechanism, wherein a chute 3 is formed in the installation table 2, the spindle box 1 is slidably installed in the chute 3, the spindle box 1 is limited and installed in the chute 3 through the elastic pre-tightening mechanism, the elastic pre-tightening mechanism comprises a pressing plate 4 and a first pre-tightening adjusting mechanism 5 installed on the pressing plate 4, the pressing plate 4 is fixedly installed on the installation table 2, the first pre-tightening adjusting mechanism 5 comprises a top block 6, a threaded sleeve 7 and an elastic component 8, an installation cavity is formed in the pressing plate 4, the top block 6 is slidably installed in the installation cavity, the threaded sleeve 7 is screwed in the installation cavity, and the top block 6 is connected with the top block 6 through the elastic component 8; the elastic component 8 can adopt a disc spring, a spring or other elastic sheets with axial elasticity, and the like, and preferably adopts a disc spring; the deformation of the elastic component 8 can be controlled by adjusting the threaded sleeve 7, and the pretightening force is further controlled; when the guide rail is abraded, the elastic component 8 enables the ejector block 6 to always press the guide rail on the spindle box 1, the gap is automatically compensated, the elastic component 8 can play a role in absorbing shock, and the running stability of the spindle box 1 is improved.
Specifically, a plurality of groups of second pre-tightening adjusting mechanisms 9 with the same structure as the first pre-tightening adjusting mechanisms 5 are arranged on the side wall of the chute 3; through the setting of second pretension guiding mechanism 9, can cooperate first pretension guiding mechanism 5 to carry out comprehensive pretension adjustment to the guide rail on the headstock 1, guarantee that the guide rail wearing and tearing degree of consistency on the headstock 1 is unanimous basically, further guarantee the cutting precision of headstock 1.
Specifically, rollers 10 can be rotatably mounted on the top blocks 6 of the first pre-tightening adjusting mechanism 5 and the second pre-tightening adjusting mechanism 9; the top block 6 can be in rotational contact with a guide rail on the spindle box 1 through the roller 10, so that the friction coefficient is reduced, the abrasion of the guide rail on the spindle box 1 is relieved, and the power output when the spindle box 1 slides up and down is reduced.
Specifically, a plurality of groups of uniformly distributed straight inlaid strips 11 are arranged on the inner side wall of the chute 3; the second pre-tightening adjusting mechanism 9 is located between two groups of adjacent straight inserts 11, the straight inserts 11 limit the guide rail on the spindle box 1, the spindle box 1 is limited under the cooperation of the second pre-tightening adjusting mechanism 9, and the precision of the spindle box 1 in the vertical sliding process is further guaranteed.
Specifically, the pressing plate 4 and the straight gib 11 are of an integral straight-surface structure; the integrated straight-surface structure is adopted, the inclined-surface structure is avoided, the rigidity is good, and the guide rail on the spindle box 1 is uniformly abraded.
When the device is used, the deformation of the elastic component 8 can be controlled by adjusting the threaded sleeve 7, and the pre-tightening force is further controlled; when the guide rail is abraded, the elastic component 8 enables the top block 6 to always press the guide rail on the spindle box 1, the gap is automatically compensated, the elastic component 8 can play a role in absorbing shock, and the running stability of the spindle box 1 is improved; through the arrangement of the second pre-tightening adjusting mechanism 9, the guide rail on the spindle box 1 can be subjected to comprehensive pre-tightening adjustment by matching with the first pre-tightening adjusting mechanism 5, so that the abrasion uniformity of the guide rail on the spindle box 1 is basically consistent, and the cutting precision of the spindle box 1 is further ensured; the top block 6 can be in rotary contact with a guide rail on the spindle box 1 through the roller 10, so that the friction coefficient is reduced, the abrasion of the guide rail on the spindle box 1 is relieved, and the power output when the spindle box 1 slides up and down is reduced; the second pre-tightening adjusting mechanism 9 is located between two groups of adjacent straight gibs 11, the straight gibs 11 limit the guide rail on the spindle box 1, the spindle box 1 is limited under the cooperation of the second pre-tightening adjusting mechanism 9, and the precision of the spindle box 1 in the vertical sliding process is further guaranteed.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A pre-tightening spindle box of a gantry milling machine is characterized by comprising a spindle box (1), a mounting table (2) and an elastic pre-tightening mechanism, the mounting table (2) is provided with a sliding chute (3), the spindle box (1) is slidably mounted in the sliding chute (3), the spindle box (1) is limited and arranged in the sliding chute (3) through an elastic pre-tightening mechanism, the elastic pre-tightening mechanism comprises a pressing plate (4) and a first pre-tightening adjusting mechanism (5) arranged on the pressing plate (4), the pressing plate (4) is fixedly arranged on the mounting table (2), the first pre-tightening adjusting mechanism (5) comprises a top block (6), a threaded sleeve (7) and an elastic component (8), the pressing plate (4) is provided with an installation cavity, the jacking block (6) is slidably arranged in the installation cavity, the threaded sleeve (7) is screwed in the installation cavity, the top block (6) is connected with the top block (6) through an elastic component (8).
2. The pre-tightening type main spindle box of the gantry milling machine as claimed in claim 1, wherein a plurality of groups of second pre-tightening adjusting mechanisms (9) with the same structure as the first pre-tightening adjusting mechanisms (5) are mounted on the side wall of the chute (3).
3. The pre-tightening type gantry milling machine spindle box according to claim 2, wherein rollers (10) are rotatably mounted on the top blocks (6) of the first pre-tightening adjusting mechanism (5) and the second pre-tightening adjusting mechanism (9).
4. A pre-tightened gantry milling machine spindle box according to claim 3, characterized in that a plurality of groups of uniformly distributed straight gibs (11) are mounted on the inner side wall of the chute (3).
5. A pre-tightened gantry milling machine headstock according to claim 4, characterized in that the pressure plate (4) and the straight gib (11) are of an integral straight-face structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220294852.6U CN217018632U (en) | 2022-02-09 | 2022-02-09 | Pre-tightening type planer type milling machine spindle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220294852.6U CN217018632U (en) | 2022-02-09 | 2022-02-09 | Pre-tightening type planer type milling machine spindle box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217018632U true CN217018632U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220294852.6U Active CN217018632U (en) | 2022-02-09 | 2022-02-09 | Pre-tightening type planer type milling machine spindle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217018632U (en) |
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2022
- 2022-02-09 CN CN202220294852.6U patent/CN217018632U/en active Active
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