CN213034107U - Tool clamp for numerical control machine tool - Google Patents
Tool clamp for numerical control machine tool Download PDFInfo
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- CN213034107U CN213034107U CN202021578407.XU CN202021578407U CN213034107U CN 213034107 U CN213034107 U CN 213034107U CN 202021578407 U CN202021578407 U CN 202021578407U CN 213034107 U CN213034107 U CN 213034107U
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Abstract
The utility model discloses a frock clamp for digit control machine tool, including base, carousel and anchor clamps base, be equipped with two sets of centre gripping subassemblies on the anchor clamps base, be equipped with the drive box between two sets of centre gripping subassemblies, be equipped with driving motor on the drive box, driving motor's output shaft is connected with the switching-over subassembly; the reversing assembly is positioned in the driving box body and is connected with a dowel bar; the clamping assemblies respectively comprise a fixed plate fixedly arranged on the clamp base and a sliding plate parallel to the fixed plate, and the sliding plates are arranged on the clamp base in a sliding connection manner; a plurality of pairs of detachable clamping parts are oppositely arranged on the fixed plate and the sliding plate, and one surface of the sliding plate, which is back to the clamping parts, is respectively connected with the dowel bars; the tool clamp can improve the efficiency of workpiece machining, shorten the machining waiting time and provide enough clamping operation time on the premise of not influencing machining.
Description
Technical Field
The utility model relates to machine tool clamp technical field, concretely relates to frock clamp for digit control machine tool.
Background
The device for holding the object to be machined in the correct position for receiving the work or inspection during the machine manufacturing process is called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. Tooling, namely process equipment: the tool is a general name of various tools used in the manufacturing process, and comprises a cutter, a clamp, a die, a measuring tool, a checking tool, an auxiliary tool and the like, and the tool is a general abbreviation thereof.
When the numerical control machine tool is used for processing a workpiece, in order to enable the surface of the workpiece to meet the technical requirements of size, geometric shape, mutual position precision with other surfaces and the like specified by a drawing, the workpiece needs to be assembled and clamped firmly before processing, and then the tool clamp can be used.
The utility model discloses a chinese utility model patent (publication No. CN210307421U) discloses a convenient to adjust positioning fixture frock for digit control machine tool in 2020, including base structure and location clamping structure, the top of base structure is provided with the location clamping structure, the right side of fixed plate is provided with fixed clamp splice, the right side of fixed clamp splice is provided with movable clamp splice, the lower extreme inside of fly leaf is provided with the stop collar. The positioning fixture tool convenient to adjust for the numerical control machine can conveniently clamp a workpiece, but the workpiece can be installed and cleaned after the workpiece is machined, so that the clamping and converting process of the fixture is long; and the clamping blocks are not convenient to fix and replace, and the types and types of clamped workpieces are limited.
Disclosure of Invention
The utility model aims at the problem that prior art exists, a frock clamp for digit control machine tool is provided.
In order to achieve the above object, the utility model adopts the following technical scheme:
a tool clamp for a numerical control machine tool comprises a base, wherein a turntable is arranged on the base, a clamp base is arranged on the turntable, two groups of clamping assemblies are symmetrically arranged above the clamp base, a driving box body is arranged on the clamp base between the two groups of clamping assemblies, a driving motor is arranged on the driving box body, and an output shaft of the driving motor is connected with a reversing assembly; the reversing assembly is positioned in the driving box body and is connected with a dowel bar, and two ends of the dowel bar are respectively connected with the clamping assemblies on two sides; the clamping assemblies respectively comprise a fixed plate fixedly arranged on the clamp base and a sliding plate parallel to the fixed plate, and the sliding plates are arranged on the clamp base in a sliding connection manner; the fixed plate and the sliding plate are oppositely provided with a plurality of pairs of detachable clamping parts, and one surface of the sliding plate, which is back to the clamping parts, is respectively connected with the dowel bars.
The fixture base is provided with the clamping assemblies, and the clamping assemblies are matched with the rotating reversing function of the turntable, so that when one group of clamping assemblies clamps a workpiece to be machined, the machined workpiece can be taken down from the other group of clamping assemblies, the fixture on the side is cleaned, and the next workpiece to be machined is placed; the workpiece is circularly reciprocated, so that the workpiece machining efficiency can be improved, and the sufficient clamping operation time can be provided on the premise of not influencing the machining.
Through the arrangement of the dowel bar and the reversing assembly, the same driving motor can respectively drive the clamping assemblies on two sides to carry out clamping and releasing operations; and make two sets of centre gripping subassemblies one just be in when the clamping condition another just be in and relax the state, make things convenient for the operation that the work piece was got and is put, be favorable to improving anchor clamps utilization ratio and shorten processing latency.
The arrangement of the fixed plate, the sliding plate and the clamping part is convenient for electrically controlling the operation of clamping and releasing the workpiece. The detachable setting is convenient for change the clamping part of different models and shapes, improves the application scope of centre gripping subassembly.
When the base works, the base is arranged on a workbench of a numerical control machine tool, a first workpiece is placed in the clamping assembly on one side, the driving motor is started to drive the dowel bar to move towards the side, the clamping part on the side clamps the first workpiece, and the workpiece is processed; the clamping assembly on the other side is in a released state, and a second workpiece can be placed in the clamping assembly and fixed; after the first workpiece is machined, the turntable rotates to turn the clamping assembly on the side where the first workpiece is located to an operator, and turn the clamping assembly on the side where the second workpiece is located to a machining position; the driving motor is controlled to move the dowel bar, so that the second workpiece is clamped, the first workpiece is naturally loosened, the first workpiece is taken out, the next workpiece is placed after the clamping part is cleaned, the workpieces are machined one by one in a circulating mode, the machining waiting time is obviously shortened, and sufficient time is provided for workpiece placement and clamping part cleaning.
Furthermore, the reversing assembly is a gear rack assembly and comprises a rotating shaft connected with an output shaft of the driving motor, and a driving gear is mounted on the rotating shaft; the middle part of dowel bar is the rack structure, the rack structure with the drive gear is connected mutually in the meshing.
Furthermore, the reversing assembly is a worm and gear assembly and comprises a rotating shaft connected with an output shaft of the driving motor, and a worm wheel is mounted on the rotating shaft; the dowel bar is a worm, and the worm is meshed with the worm wheel.
Furthermore, the clamping part comprises a clamping mounting plate, one surface of the clamping mounting plate is provided with a convex dovetail wedge-shaped structure, and the other surface of the clamping mounting plate is provided with a plurality of clamping blocks which are arranged in parallel; the clamping mounting plate is fixed with the fixed plate or the sliding plate in a threaded manner, and the dovetail wedge-shaped structure is matched in the fixed plate or the sliding plate.
Furthermore, dovetail grooves are arranged on the surfaces of the fixed plate and the sliding plate, which are respectively matched with the clamping part.
The dovetail wedge structure with the cooperation setting of dovetail is convenient for install fast the centre gripping mounting panel has location and preliminary fixed effect, and the mode of spiro union can with the centre gripping mounting panel is firmly fixed the fixed plate or the sliding plate is last and can be dismantled.
The arrangement is convenient for replacing clamping parts of different types for different types of workpieces; the vertical depth of the dovetail groove is determined according to the position of the clamping part, and the dovetail groove is generally slotted to the middle lower part of the fixed plate (or the sliding plate).
Furthermore, at least one clamping block on each clamping part is provided with a spring hole and a piston hole, and a piston rod and a spring seat are arranged on the clamping mounting plate; the spring seat is arranged corresponding to the spring hole and is connected with a spring, and the piston rod is arranged corresponding to the piston hole and is inserted into the piston hole; the spring holes are symmetrically arranged on two sides of the piston hole.
Namely, at least one pair of the clamping blocks on each group of clamping components are arranged elastically, so that the pair of the clamping blocks can still clamp the workpiece in a non-clamping state, the clamping force is not large, and only the workpiece is supported to play a role in pre-fixing; when the clamping device is in a clamping state, the spring stretches in the spring hole, and the clamping block completely clamps the workpiece under the action of external force like other clamping blocks.
The outer contour size of the spring seat is slightly smaller than the inner diameter of the spring hole, so that the spring can conveniently enter the spring hole when compressed, and the clamping block can be tightly attached to the clamping mounting plate.
Furthermore, a plurality of pairs of limiting plates are arranged on the clamp base, and each pair of limiting plates is sleeved with a guide rod; the sliding plate is positioned between the pair of limiting plates, and the guide rods respectively penetrate through the lower parts of the sliding plate and are connected in a sliding manner; the guide rods are all arranged in parallel with the dowel bars.
The limiting plate and the guide rod are arranged to enable the sliding plate to slide within the range of the limiting block; the distance between the limiting blocks and the length of the guide rod can be flexibly set according to actual conditions.
Furthermore, reinforcing rib plates are respectively arranged between the outer side of the fixing plate and the clamp base to enhance the stability of the fixing plate.
Furthermore, the driving box body is of a rectangular box body structure or an n-shaped mounting plate structure.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the fixture base is provided with the clamping assemblies, and the clamping assemblies are matched with the rotating reversing function of the turntable, so that when one group of clamping assemblies clamps a workpiece to be machined, the machined workpiece can be taken down from the other group of clamping assemblies, the fixture on the side is cleaned, and the next workpiece to be machined is placed; the workpiece is circularly reciprocated, so that the workpiece machining efficiency can be improved, and enough clamping operation time can be provided on the premise of not influencing machining; 2. through the arrangement of the dowel bar and the reversing assembly, the same driving motor can respectively drive the clamping assemblies on two sides to carry out clamping and releasing operations; one of the two groups of clamping assemblies is in a clamping state, and the other clamping assembly is in a releasing state, so that the operation of taking and placing workpieces is facilitated, the utilization rate of the clamp is improved, and the processing waiting time is shortened; 3. the detachable setting is convenient for change the clamping part of different models and shapes, improves the application scope of centre gripping subassembly.
Drawings
Fig. 1 is a schematic structural view of a tool holder for a numerically controlled machine tool according to the present invention;
fig. 2 is a schematic top view of the tool holder for a numerically controlled machine tool according to the present invention;
fig. 3 is a schematic structural view of a reversing assembly of a tool holder for a numerically controlled machine tool according to the present invention;
fig. 4 is a schematic structural view of a part a-a of a tool holder for a numerically controlled machine tool according to the present invention;
fig. 5 is a schematic structural view of another reversing assembly of the tooling fixture for the numerical control machine tool according to the present invention;
fig. 6 is a schematic structural view of another clamping portion of a tool holder for a numerically controlled machine tool according to the present invention;
in the figure: 1. a base; 2. a turntable; 3. a clamp base; 4. a driving box body; 5. a drive motor; 6. a commutation assembly; 7. a dowel bar; 8. a fixing plate; 9. a sliding plate; 10. a clamping portion; 1001. clamping the mounting plate; 1002. a clamping block; 1003. a dovetail wedge structure; 11. reinforcing the ribbed plate; 12. a limiting plate; 13. a guide bar; 14. a rotating shaft; 15. a drive gear; 16. a dovetail groove; 17. a worm gear; 18. a spring hole; 19. a piston bore; 20. a spring seat; 21. a piston rod; 22. a spring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 and 2, a tooling fixture for a numerical control machine tool comprises a base 1, wherein a turntable 2 is arranged on the base 1, a fixture base 3 is arranged on the turntable 2, two groups of clamping assemblies are arranged above the fixture base 3 in a bilateral symmetry manner, a driving box body 4 is arranged on the fixture base 3 between the two groups of clamping assemblies, a driving motor 5 is arranged on the driving box body 4, and an output shaft of the driving motor 5 is connected with a reversing assembly 6; the reversing assembly 6 is positioned in the driving box body 4 and is connected with a dowel bar 7, and two ends of the dowel bar 7 are respectively connected with the clamping assemblies on two sides; the clamping components comprise a fixed plate 8 fixedly arranged on the clamp base 3 and a sliding plate 9 parallel to the fixed plate 8, and the sliding plate 9 is arranged on the clamp base 3 in a sliding connection mode; the fixed plate 8 and the sliding plate 9 are provided with detachable clamping parts 10 in opposite directions, and one surface of the sliding plate 9, which is back to the clamping parts 10, is respectively connected with the dowel bars 7.
The fixture base is provided with the clamping assemblies, and the clamping assemblies on the left side are matched with the overall rotation reversing function of the turntable 2, so that the left clamping assembly can clamp workpieces to be machined, and the right clamping assembly can be used for taking down the machined workpieces, cleaning the fixture on the side and placing the next workpiece to be machined; the workpiece is circularly reciprocated, so that the workpiece machining efficiency can be improved, and the sufficient clamping operation time can be provided on the premise of not influencing the machining.
Through the arrangement of the dowel bar 7 and the reversing assembly 6, the dowel bar 7 can respectively move towards two directions to respectively apply thrust to the sliding plate 9, so that the same driving motor 5 can respectively drive the clamping assemblies at two sides to carry out clamping and releasing operations; and make two sets of centre gripping subassemblies one just be in when the clamping condition another just be in and relax the state, make things convenient for the operation that the work piece was got and is put, be favorable to improving anchor clamps utilization ratio and shorten processing latency.
The arrangement of the fixed plate 8, the sliding plate 9 and the clamping part 10 is convenient for electrically controlling the operation of clamping and releasing the workpiece. The detachable arrangement is convenient for change the clamping part 10 of different models and shapes, and improves the application range of the clamping assembly.
During working, the base 1 is arranged on a workbench of a numerical control machine tool, a first workpiece is placed in the clamping assembly on the left side, the driving motor 5 is started to drive the dowel bar 7 to move towards the left side, the clamping part 10 on the left side clamps the first workpiece, and the workpiece is processed; the clamping assembly on the right side is in a relaxed state, and a second workpiece can be placed in the clamping assembly and fixed; after the first workpiece is machined, the turntable 2 rotates to turn the clamping assembly on the side where the first workpiece is located to an operator, and turn the clamping assembly on the side where the second workpiece is located to a machining position; the driving motor 5 is controlled to move the dowel bar 7 in the reverse direction, so that the second workpiece is clamped, the first workpiece is naturally loosened, the first workpiece is taken out, the next workpiece is placed after the clamping part 10 is cleaned, the workpieces are machined one by one in a circulating mode, the machining waiting time is obviously shortened, and sufficient time is provided for workpiece placement and clamping part cleaning.
Further, as shown in fig. 3, the reversing assembly 6 is a rack and pinion assembly, and includes a rotating shaft 14 connected to an output shaft of the driving motor 5, and a driving gear 15 is mounted on the rotating shaft 14; the middle part of dowel bar 7 is the rack structure, the rack structure with drive gear 14 looks meshing is connected.
Through the cooperation of the gear and the rack, the rotary motion of the rotary shaft 14 can be converted into the horizontal linear motion of the dowel bar 7, and when the driving motor rotates forwards and backwards, the rotary shaft 14 rotates forwards and backwards along with the rotary shaft, so that the movement of the dowel bar 7 in two directions in the horizontal direction is realized.
Further, as shown in fig. 4, the clamping portion 10 includes a clamping mounting plate 1001, one surface of the clamping mounting plate 1001 is provided with a convex dovetail wedge structure 1003, and the other surface is provided with two clamping blocks 1002 which are parallel up and down; the clamping mounting plate 1001 is fixed with the fixing plate 8 or the sliding plate 9 in a threaded manner, and the dovetail wedge structure 1003 is fitted in the fixing plate 8 or the sliding plate 9.
Furthermore, dovetail grooves 16 are formed on the surfaces of the fixed plate 8 and the sliding plate 9, which are respectively matched with the clamping part 10.
The dovetail wedge structure 1003 with the cooperation setting of dovetail 16 is convenient for install fast the centre gripping mounting panel 1001 has location and preliminary fixed effect, and the spiro union mode can with the centre gripping mounting panel 1001 firmly is fixed on fixed plate 8 or sliding plate 9 and can be dismantled.
The arrangement is convenient for replacing clamping parts of different types for different types of workpieces; the dovetail groove 16 has a vertical depth determined according to the position of the clamping portion, and is generally slotted to the middle-lower portion of the fixed plate 8 (or the sliding plate 9).
Further, a pair of limiting plates 12 are respectively arranged on the left side and the right side of the clamp base 3, and two guide rods 13 are sleeved on each pair of limiting plates 12; the sliding plate 9 is positioned between the pair of limiting plates 12, and the guide rods 13 respectively penetrate through the lower parts of the sliding plate 9 and are connected in a sliding manner; the guide rods 13 are all arranged in parallel with the dowel bars 7.
The limiting plate 12 and the guide rod 13 are arranged to enable the sliding plate 9 to slide within the range of the limiting block 12; the distance between the limiting blocks 12 and the length of the guide rod can be flexibly set according to actual conditions.
Further, reinforcing rib plates 11 are respectively arranged between the outer side of the fixing plate 8 and the clamp base 3 to enhance the stability of the fixing plate 8.
Example two:
the present embodiment differs from the first embodiment in that a commutation component of another configuration is provided.
As shown in fig. 5, the reversing assembly 6 is a worm and gear assembly, and includes a rotating shaft 14 connected to an output shaft of the driving motor 5, and a worm wheel 17 is mounted on the rotating shaft 14; the dowel bar 7 is a worm, and the worm is meshed with the worm wheel 17.
Through the cooperation of worm gear, can be with the rotary motion of rotation axis 14 converts into the horizontal linear motion of dowel steel 7, during driving motor 5 is just reversing, rotation axis 14 is just reversing along with, thereby drives worm wheel 17 is just reversing, in order to realize the horizontal migration of the two directions of worm (dowel steel 7).
Example three:
the difference between the present embodiment and the first embodiment is that a clamping block with another structure is provided.
As shown in fig. 6, the clamp block 1002 below each clamp 10 has a spring hole 18 and a piston hole 19, and a piston rod 21 and a spring seat 20 are provided on the clamp mounting plate 1001; the spring seat 20 is arranged corresponding to the spring hole 18 and is connected with a spring 22, and the piston rod 21 is arranged corresponding to the piston hole 19 and is inserted into the piston hole 19; the spring holes 18 are symmetrically arranged on both sides of the piston hole 19.
Namely, a pair of clamping blocks 1002 on each group of clamping components are arranged elastically, so that in a non-clamping state, the pair of clamping blocks 1002 can still clamp the workpiece, the clamping force is not large, and the workpiece is only supported to play a role in pre-fixing; when in the clamping state, the spring 22 extends and contracts in the spring hole 18, and the clamping block 1002 completely clamps the workpiece under the same external force as other clamping blocks.
The outer diameter of the spring seat 20 is slightly smaller than the inner diameter of the spring hole 18, so that the whole spring seat 20 enters the spring hole 18 when the spring 22 is compressed, and the clamping block 1002 can be tightly attached to the clamping mounting plate 1001.
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 (9)
1. A frock clamp for a numerical control machine tool comprises a base, wherein a turntable is arranged on the base, and a clamp base is arranged on the turntable; the reversing assembly is positioned in the driving box body and is connected with a dowel bar, and two ends of the dowel bar are respectively connected with the clamping assemblies on two sides; the clamping assemblies respectively comprise a fixed plate fixedly arranged on the clamp base and a sliding plate parallel to the fixed plate, and the sliding plates are arranged on the clamp base in a sliding connection manner; the fixed plate and the sliding plate are oppositely provided with a plurality of pairs of detachable clamping parts, and one surface of the sliding plate, which is back to the clamping parts, is respectively connected with the dowel bars.
2. The tooling clamp for the numerical control machine tool according to claim 1, wherein the reversing assembly is a rack and pinion assembly and comprises a rotating shaft connected with an output shaft of the driving motor, and a driving gear is mounted on the rotating shaft; the middle part of dowel bar is the rack structure, the rack structure with the drive gear is connected mutually in the meshing.
3. The tooling clamp for the numerical control machine tool according to claim 1, wherein the reversing assembly is a worm and gear assembly and comprises a rotating shaft connected with an output shaft of the driving motor, and a worm gear is mounted on the rotating shaft; the dowel bar is a worm, and the worm is meshed with the worm wheel.
4. The tool clamp for the numerical control machine tool according to claim 1, wherein the clamping part comprises a clamping mounting plate, one surface of the clamping mounting plate is provided with a convex dovetail wedge-shaped structure, and the other surface of the clamping mounting plate is provided with a plurality of clamping blocks which are arranged in parallel; the clamping mounting plate is fixed with the fixed plate or the sliding plate in a threaded manner, and the dovetail wedge-shaped structure is matched in the fixed plate or the sliding plate.
5. A tool holder for a numerical control machine according to any one of claims 1 or 4, wherein dovetail grooves are provided on surfaces of the fixed plate and the sliding plate respectively engaging with the holding part.
6. The tooling clamp for the numerical control machine tool according to claim 4, wherein at least one clamping block on each clamping part is provided with a spring hole and a piston hole, and a piston rod and a spring seat are arranged on the clamping mounting plate; the spring seat is arranged corresponding to the spring hole and is connected with a spring, and the piston rod is arranged corresponding to the piston hole and is inserted into the piston hole; the spring holes are symmetrically arranged on two sides of the piston hole.
7. The tool clamp for the numerical control machine according to claim 1, wherein a plurality of pairs of limiting plates are arranged on the clamp base, and a guide rod is sleeved on each pair of limiting plates; the sliding plate is positioned between the pair of limiting plates, and the guide rods respectively penetrate through the lower parts of the sliding plate and are connected in a sliding manner; the guide rods are all arranged in parallel with the dowel bars.
8. The tooling clamp for the numerical control machine according to claim 1, wherein reinforcing rib plates are respectively arranged between the outer side of the fixing plate and the clamp base.
9. The tooling clamp for the numerical control machine tool according to claim 1, wherein the driving box body is a rectangular box body structure or an 'n' -shaped mounting plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578407.XU CN213034107U (en) | 2020-08-03 | 2020-08-03 | Tool clamp for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578407.XU CN213034107U (en) | 2020-08-03 | 2020-08-03 | Tool clamp for numerical control machine tool |
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| CN213034107U true CN213034107U (en) | 2021-04-23 |
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| CN202021578407.XU Active CN213034107U (en) | 2020-08-03 | 2020-08-03 | Tool clamp for numerical control machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161173A (en) * | 2021-12-24 | 2022-03-11 | 上海园林绿化建设有限公司 | CNC control-based numerical control machining equipment for producing polyurethane garden landscape |
-
2020
- 2020-08-03 CN CN202021578407.XU patent/CN213034107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161173A (en) * | 2021-12-24 | 2022-03-11 | 上海园林绿化建设有限公司 | CNC control-based numerical control machining equipment for producing polyurethane garden landscape |
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