CN112872393A - Clamping device and processing machine tool - Google Patents

Clamping device and processing machine tool Download PDF

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Publication number
CN112872393A
CN112872393A CN202110272447.4A CN202110272447A CN112872393A CN 112872393 A CN112872393 A CN 112872393A CN 202110272447 A CN202110272447 A CN 202110272447A CN 112872393 A CN112872393 A CN 112872393A
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CN
China
Prior art keywords
clamping
chuck assembly
assembly
workpiece
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110272447.4A
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Chinese (zh)
Inventor
刘大猛
全丽平
教纪民
齐同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingyanhan Hi Tech Tianjin Co ltd
Tsinghua University
Original Assignee
Qingyanhan Hi Tech Tianjin Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingyanhan Hi Tech Tianjin Co ltd filed Critical Qingyanhan Hi Tech Tianjin Co ltd
Priority to CN202110272447.4A priority Critical patent/CN112872393A/en
Publication of CN112872393A publication Critical patent/CN112872393A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/102Jaws, accessories or adjustment means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention relates to the technical field of machining, and discloses a fixture device and a machining tool, wherein the fixture device comprises an installation seat, a chuck assembly, clamping assemblies and an abutting part, the chuck assembly is rotatably arranged on the installation seat, the chuck assembly is provided with through holes for penetrating workpieces along the axial direction of the chuck assembly, a plurality of groups of clamping assemblies are arranged along the circumferential direction of the chuck assembly, the clamping assemblies are movably arranged on the chuck assembly and can extend into or be separated from the through holes along the radial direction of the chuck assembly, the abutting part is movably arranged along the axial direction of the chuck assembly and can be matched with the inclined surfaces of the clamping assemblies, and the abutting part moves along the axial direction of the chuck assembly to drive the plurality of groups of clamping assemblies to synchronously extend into the through holes so as to clamp the workpieces or synchronously separate from the through holes. The clamp device realizes synchronous driving of a plurality of groups of clamping components, is convenient for clamping and releasing workpieces, is convenient to operate, and improves the efficiency and the precision of workpiece clamping.

Description

Clamping device and processing machine tool
Technical Field
The invention relates to the technical field of machining, in particular to a fixture device and a machining machine tool.
Background
When the clamping device is used for clamping a workpiece, three clamping jaws need to be manually adjusted respectively to be in contact with the surface of the workpiece, and are manually adjusted to be in an appropriate tightness state so as to clamp the workpiece, and then the workpiece is machined. When the fixture device is used for batch production of workpieces, the clamping efficiency is low, the labor intensity is high, the workpiece clamping precision is low, the final workpiece machining precision can be influenced, and the batch production of the workpieces cannot be met.
Disclosure of Invention
The invention aims to provide a clamp device and a processing machine tool, and solves the technical problems that clamping jaws need to be manually adjusted one by one when the existing clamp device is used for clamping, the clamping efficiency is low, and the clamping precision is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides a jig device including:
a mounting seat;
the chuck assembly is rotationally arranged on the mounting seat and is provided with a through hole for penetrating a workpiece along the axial direction;
the clamping assemblies are arranged along the circumferential direction of the chuck assembly, movably arranged on the chuck assembly and capable of extending into or being separated from the through hole along the radial direction of the chuck assembly;
butt portion follows the axial activity of chuck subassembly sets up, and can with the cooperation of clamping component inclined plane, butt portion follows the axial direction of chuck subassembly removes in order to drive the multiunit clamping component stretches into in step the wear-to-hole with will the work piece presss from both sides tightly, or deviate from in step the wear-to-hole with will the work piece relaxes.
This fixture device's chuck subassembly is provided with the through-hole along its axial, the work piece can wear to locate in the through-hole, chuck assembly's circumference is provided with multiunit clamping components, butt portion moves along chuck assembly's axial direction and through the inclined plane cooperation between the clamping components, in order to drive multiunit clamping components synchronous stretch into through-hole in order to press from both sides the work piece tightly, or deviate from the through-hole in step in order to relax the work piece, this fixture device has realized multiunit clamping components's synchronous drive, be convenient for press from both sides tightly and relax the work piece, and convenient for operation has improved the efficiency and the clamping precision of work piece clamping.
As a preferable aspect of the above clamping apparatus, the clamping apparatus further includes:
the first driving device is used for driving the chuck assembly to rotate.
The arrangement of the first driving device can drive the chuck component to rotate so as to drive the workpiece to rotate, and the workpiece rotation automation is realized.
As a preferable aspect of the above chuck device, the first driving device includes:
the driving part is arranged on the mounting seat;
the transmission assembly comprises a driving wheel and a driven wheel which are meshed with each other, the driving wheel is arranged at the output end of the driving part, and the driven wheel is arranged on the chuck assembly.
The first driving device is simple in structure and stable in transmission, and can drive the chuck component to rotate stably.
As a preferable mode of the above clamping device, the driven wheel and the chuck assembly are coaxially arranged.
The driven wheel and the chuck assembly are coaxially arranged, so that the chuck assembly can realize circular motion, a workpiece rotates around the axis of the workpiece conveniently, and the machining precision of the workpiece is improved.
As a preferable embodiment of the above clamping apparatus, the abutting portion is provided with a first inclined surface, the clamping assembly is provided with a second inclined surface, the abutting portion moves along the axial direction of the chuck assembly, and the first inclined surface is matched with each of the second inclined surfaces to press the clamping assembly to extend into or separate from the through hole.
Through the cooperation on the first inclined plane on the butt portion and the second inclined plane on the clamping component, realized stretching into or deviating from the drive in wear to establish the hole to the clamping component, simple structure, it is easy and simple to handle.
In a preferred embodiment of the above clamping apparatus, the mounting seat is provided with a mounting groove, and the abutting portion is movably disposed in the mounting groove along an axial direction of the mounting seat.
Be provided with the mounting groove on the mount pad, can make butt portion move in the mounting groove to can restrict the motion stroke of butt portion through the mounting groove.
As a preferable scheme of the above clamping device, the clamping device further includes a reset member, and the reset member is disposed between the clamping assembly and the chuck assembly and is used for driving the clamping assembly to reset.
The setting that resets can drive clamping component and reset to avoid the work piece to receive clamping component's interference when installing in the wearing hole.
As a preferable mode of the above chucking device, the chucking device further includes a second driving device configured to drive the abutting portion to move in the axial direction of the chuck assembly.
The second driving device can drive the abutting portion to move along the axial direction of the chuck assembly, and automation of workpiece clamping is achieved.
The invention also provides a processing machine tool which comprises the clamp device.
The processing machine tool can synchronously clamp the workpiece from the circumferential direction of the workpiece through the clamp device, and the mounting efficiency is improved.
As a preferable aspect of the processing machine tool, the processing machine tool further includes:
the two groups of clamp devices are arranged on the base at intervals and respectively clamped at two ends of the workpiece; and
the fixture device comprises a base, two groups of cutter assemblies, two groups of fixture assemblies and two groups of fixture assemblies, wherein the cutter assemblies are arranged on the base at intervals, the fixture device is arranged between the two groups of cutter assemblies, and the two ends of the workpiece can be respectively machined by the two groups of cutter assemblies.
The two ends of the workpiece are respectively clamped by the two groups of clamp devices, and the two ends of the workpiece are processed by the two groups of cutter assemblies, so that the two ends of the workpiece are processed under the condition of one-time clamping of the workpiece, no secondary positioning error exists, the working efficiency and the clamping precision are improved, and the processing quality is ensured.
The invention has the beneficial effects that:
according to the fixture device provided by the invention, the chuck assembly of the fixture device is provided with the through hole along the axial direction, the workpiece can be arranged in the through hole in a penetrating way, the periphery of the chuck assembly is provided with a plurality of groups of clamping assemblies, the abutting part moves along the axial direction of the chuck assembly and is matched with the clamping assemblies through the inclined plane, so that the plurality of groups of clamping assemblies are driven to synchronously stretch into the through hole to clamp the workpiece, or synchronously depart from the through hole to release the workpiece, the fixture device realizes the synchronous driving of the plurality of groups of clamping assemblies, the workpiece is convenient to clamp and release, the operation is convenient, and the workpiece clamping efficiency and the clamping precision are improved.
According to the processing machine tool, the two ends of the workpiece are respectively clamped by the two groups of clamp devices, and the two ends of the workpiece are processed by the two groups of cutter assemblies, so that the two ends of the workpiece are processed under the condition of once clamping of the workpiece, secondary positioning errors are avoided, the working efficiency and the clamping precision are improved, and the processing quality is ensured.
Drawings
FIG. 1 is a schematic diagram of a machine tool according to the present invention;
FIG. 2 is a schematic structural view of a clamping device provided in the present invention;
fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a cross-sectional view of a fixture apparatus provided by the present invention.
In the figure:
100. a clamp device; 200. a base; 300. a cutter assembly; 400. a workpiece; 500. a lifting device;
1. a mounting seat; 11. mounting grooves;
2. a chuck assembly; 21. perforating holes;
3. a clamping assembly; 31. a second inclined plane;
4. an abutting portion;
5. a first driving device; 51. a drive section; 521. a driving wheel; 522. a driven wheel; 53. a speed reducer;
6. a reset member.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The graphite electrode is an important purchasing part in the metal smelting industry, and the processing equipment is special due to the fact that the graphite electrode is soft in material, large in size and high in processing precision requirement. In particular, the processing quality of the inner bore taper thread processing of the graphite electrode not only directly affects the bonding strength of the electrode in use, but also has a crucial influence on the conductivity of the electrode, so the method is the most complex and most critical process in the processing of the graphite electrode. The existing graphite electrode thread processing machine tool generally adopts a design scheme that a main shaft at one end clamps a workpiece to rotate, and a thinning shaft clamps a cutter to realize cutting motion. It has the following drawbacks: 1. the end face of the thread has twice positioning errors with the thread, and the perpendicularity error with the central line of the thread is large; 2. the processing time is long, and the processing efficiency is low. In order to solve the above problem, the present embodiment provides a machine tool, which is used for processing a workpiece, where the workpiece is a graphite electrode, as shown in fig. 1, the machine tool includes a base 200, two sets of fixture devices 100 and two sets of tool assemblies 300, the two sets of fixture devices 100 are disposed on the base 200 at intervals, the two sets of fixture devices 100 are respectively clamped at two ends of the workpiece 400, the two sets of tool assemblies 300 are disposed on the base 200 at intervals, the fixture devices 100 are disposed between the two sets of tool assemblies 300, the two sets of tool assemblies 300 can respectively process two ends of the workpiece 400, and one clamping can realize processing at two ends of the graphite electrode, thereby improving the processing efficiency and the processing precision.
Further, in order to facilitate the installation of the graphite electrode, the processing machine tool further comprises a lifting device 500 for supporting the graphite electrode, and the lifting device 500 can move in a telescopic manner along the vertical direction to adjust the height of the graphite electrode, so that the graphite electrode is conveyed to the clamping position of the fixture device 100, and the interference to the graphite electrode is avoided after the graphite electrode is clamped in place. It should be noted that the lift apparatus 500 is reset, i.e., retracted, when the tool assembly 300 is processing a graphite electrode.
Optionally, in order to machine graphite electrodes with different lengths, the two sets of clamping devices 100 and the two sets of tool assemblies 300 are slidably disposed on the base 200 respectively, so as to machine graphite electrodes with different sizes. The clamping device 100 and the tool assembly 300 can be respectively and independently slidably disposed on the base 200, and the clamping device 100 and the tool assembly 300 located on the same side of the lifting device 500 can be synchronously and slidably disposed on the base 200, specifically, the clamping device 100 and the tool assembly 300 located on the same side of the lifting device 500 are mounted on the same slide plate, and the slide plate is slidably disposed on the base 200.
Optionally, the tool assembly 300 includes a transverse feeding device, a longitudinal feeding device and a tool, the longitudinal feeding device is slidably disposed on the base 200, the transverse feeding device is disposed on the longitudinal feeding device, the tool is disposed on the transverse feeding device, and the position of the tool along the axial direction of the graphite electrode is adjusted by the transverse feeding device to adjust the depth of the hole machined on the graphite electrode by the tool; the longitudinal feeding device can adjust the position of the cutter along the direction perpendicular to the axial direction of the graphite electrode so as to adjust the diameter of the hole machined on the graphite electrode by the cutter. Of course, the mounting positional relationship among the infeed device, the longitudinal infeed device, and the cutter is not limited to the above mounting manner as long as the movement of the cutter assembly 300 in the three-dimensional direction can be achieved.
The processing machine further comprises a control device, and the clamp device 100, the transverse feeding device and the longitudinal feeding device are respectively electrically connected with the control device, so that the actions of all parts can be conveniently controlled by the control device.
Optionally, the cutter assembly 300 is provided with a positioning sensor, so that the positioning sensor can automatically identify the position of the graphite electrode no matter how long the workpiece 400 is, and when the positioning sensor and the graphite electrode reach proper positions, a signal is sent out, the control device controls each part to enter a machining program without tool setting or re-clamping adjustment, so that time is saved, efficiency is improved, and automatic machining is realized.
According to the processing machine tool, the two ends of the workpiece 400 are respectively clamped by the two groups of clamp devices 100, and the two ends of the workpiece 400 are processed by the two groups of cutter assemblies 300, so that the processing of the two ends of the workpiece 400 is completed under the condition of one-time clamping of the workpiece 400, no secondary positioning error exists, the working efficiency and the clamping precision are improved, and the processing quality is ensured.
As shown in fig. 1-4, the clamping device 100 includes a mounting seat 1, a chuck assembly 2, a clamping assembly 3 and an abutting portion 4, the mounting seat 1 is installed on a base 200, the chuck assembly 2 is rotatably installed on the mounting seat 1 through a bearing, the chuck assembly 2 is provided with a through hole 21 for penetrating a workpiece 400 along the axial direction thereof, a plurality of sets of clamping assemblies 3 are circumferentially arranged along the chuck assembly 2, the clamping assembly 3 is movably arranged on the chuck assembly 2 and can radially extend into or separate from the through hole 21 along the chuck assembly 2, the abutting portion 4 is movably arranged along the axial direction of the chuck assembly 2 and can be matched with an inclined surface of the clamping assembly 3, the abutting portion 4 moves along the axial direction of the chuck assembly 2 to drive the plurality of sets of clamping assemblies 3 to synchronously extend into the through hole 21 so as to clamp the workpiece 400, or synchronously separate from the through hole 21 so as to loosen the workpiece 400. In this embodiment, the cutter is a chaser, and the chuck assembly 2 is rotatably disposed on the mounting base 1, so as to provide power for rotation of the workpiece 400, and realize processing of the threaded hole at the end of the workpiece 400.
This fixture device 100's chuck assembly 2 is provided with the through-hole 21 along its axial, work piece 400 can wear to locate in the through-hole 21, chuck assembly 2's circumference is provided with multiunit clamping component 3, butt portion 4 moves and presss from both sides through the inclined plane cooperation between the clamping component 3 along chuck assembly 2's axial direction, in order to drive multiunit clamping component 3 and stretch into in the through-hole 21 in step and press from both sides work piece 400 tightly, or deviate from the through-hole 21 in step and relax work piece 400, this fixture device 100 has realized multiunit clamping component 3's synchronous drive, be convenient for press from both sides tightly and relax work piece 400, and convenient for operation, the efficiency and the clamping precision of work piece 400 clamping have been improved.
As shown in fig. 2, three sets of clamping assemblies 3 are provided, and the three sets of clamping assemblies 3 are uniformly arranged along the circumferential direction of the chuck assembly 2 so as to clamp the workpiece 400 in the circumferential direction. Of course, the clamping assemblies 3 are not limited to three sets, and may be four or more sets, and the specific conditions may be set according to requirements.
As shown in fig. 3, the clamping device 100 further includes a reset element 6, and the reset element 6 is disposed between the clamping assembly 3 and the chuck assembly 2 for driving the clamping assembly 3 to reset. The reset piece 6 is arranged to drive the clamping component 3 to reset so as to prevent the workpiece 400 from being interfered by the clamping component 3 when being installed in the through hole 21. In this embodiment, the reset piece 6 is a spring, one end of the spring abuts against the chuck assembly 2, and the other end of the spring abuts against the clamping assembly 3. When the abutting part 4 abuts against the clamping component 3, the clamping component 3 extends into the through hole 21, and the spring is compressed at the moment; when the abutting portion 4 is reset and then is released from pressing the clamping assembly 3, the clamping assembly 3 is reset by the restoring force of the spring.
As shown in fig. 3 and 4, the clamping device 100 further includes a first driving device 5, and the first driving device 5 is used for driving the chuck assembly 2 to rotate. The arrangement of the first driving device 5 can drive the chuck assembly 2 to rotate so as to drive the workpiece 400 to rotate, and automation of rotation of the workpiece 400 is realized.
Specifically, the first driving device 5 includes a driving portion 51 and a transmission assembly, the driving portion 51 is disposed on the mounting base 1 and electrically connected to the control device, the transmission assembly includes a driving wheel 521 and a driven wheel 522 engaged with each other, the driving wheel 521 is disposed at an output end of the driving portion 51 through a speed reducer 53, and the driven wheel 522 is disposed on the chuck assembly 2. In this embodiment, the driven wheel 522 is provided on the outer periphery of the chuck assembly 2. The driving portion 51 drives the driving wheel 521 to rotate, so as to drive the driven wheel 522 to rotate, thereby driving the chuck assembly 2 to rotate. The first driving device 5 is simple in structure and stable in transmission, and can drive the chuck component 2 to stably rotate. Of course, the first driving device 5 may be other transmission methods, such as belt transmission, chain transmission, etc., and is not limited in particular.
Preferably, the driven wheel 522 and the chuck assembly 2 are coaxially disposed such that the chuck assembly 2 can perform a circular motion to facilitate rotation of the workpiece 400 about its axis, thereby improving the machining accuracy in machining the workpiece 400.
Optionally, the abutting portion 4 is an annular structure, a first inclined surface is disposed on an inner side wall of the annular structure, as shown in fig. 3, a second inclined surface 31 is disposed on the clamping assembly 3, the abutting portion 4 moves along the axial direction of the chuck assembly 2, and the first inclined surface is matched with each second inclined surface 31 to press the clamping assembly 3 to extend into or separate from the through hole 21. Through the cooperation of the first inclined plane on the abutting part 4 and the second inclined plane 31 on the clamping component 3, the driving of the clamping component 3 to stretch into or depart from the through hole 21 is realized, the structure is simple, and the operation is simple and convenient.
The clamp device 100 further comprises second drive means electrically connected to the control means, the second drive means being configured to drive the axial movement of the abutment 4 along the chuck assembly 2. The second driving device can drive the abutting part 4 to move along the axial direction of the chuck assembly 2, so that the workpiece 400 can be clamped automatically. The second driving device may be an oil cylinder, an air cylinder, or the like, and the second driving device may also have other structures, and the specific structure is not specifically limited herein, and linear driving may be achieved.
As shown in fig. 3, the mounting seat 1 is provided with a mounting groove 11, and the abutting portion 4 is movably provided in the mounting groove 11 in the axial direction of the mounting seat 1. The installation seat 1 is provided with an installation groove 11, so that the abutting part 4 can move in the installation groove 11, and the movement stroke of the abutting part 4 can be limited through the installation groove 11.
The working principle of the processing machine tool is as follows:
first, the workpiece 400 to be machined is raised by the lift device 500 to a height corresponding to the through-holes 21 of the jig device 100.
Then, the positions of the two sets of clamping devices 100 are adjusted to make the workpiece 400 penetrate through the penetrating holes 21 of the two sets of clamping devices 100, and the second driving device drives the abutting part 4 to move to press the clamping assemblies 3 to synchronously clamp the workpiece 400.
Then, the positions of the two sets of tool assemblies 300 are adjusted so that the two ends of the workpiece 400 correspond to the corresponding tool assemblies 300, the workpiece 400 is driven to rotate by the first driving device 5, the workpiece 400 is machined by the tool assemblies 300, and after the workpiece 400 is machined, the tool assemblies 300 and the fixture device 100 are reset.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A clamp device, comprising:
a mounting seat (1);
the chuck assembly (2) is rotatably arranged on the mounting seat (1), and a through hole (21) for penetrating a workpiece (400) is formed in the chuck assembly (2) along the axial direction of the chuck assembly;
the clamping assemblies (3) are arranged along the circumferential direction of the chuck assembly (2), the clamping assemblies (3) are movably arranged on the chuck assembly (2) and can extend into or separate from the through hole (21) along the radial direction of the chuck assembly (2);
butt portion (4), follow the axial activity of chuck subassembly (2) sets up, and can with press from both sides tight subassembly (3) inclined plane cooperation, butt portion (4) are followed the axial direction of chuck subassembly (2) removes in order to drive the multiunit press from both sides tight subassembly (3) and stretch into in step in order to incite somebody to action in wear hole (21) work piece (400) press from both sides tightly, or deviate from in step wear hole (21) in order to with work piece (400) relax.
2. The clamp device recited in claim 1, further comprising:
the first driving device (5) is used for driving the chuck assembly (2) to rotate, and the first driving device (5) is used for driving the chuck assembly (2) to rotate.
3. Clamping device according to claim 2, characterized in that said first driving means (5) comprise:
a drive unit (51), wherein the drive unit (51) is arranged on the mounting base (1);
the transmission assembly comprises a driving wheel (521) and a driven wheel (522) which are meshed with each other, the driving wheel (521) is arranged at the output end of the driving part (51), and the driven wheel (522) is arranged on the chuck assembly (2).
4. A clamp device as claimed in claim 3, wherein the driven wheel (522) and the chuck assembly (2) are coaxially arranged.
5. The clamping device as claimed in any one of claims 1 to 4, wherein a first inclined surface is provided on the abutting portion (4), a second inclined surface (31) is provided on the clamping assembly (3), the abutting portion (4) moves along the axial direction of the chuck assembly (2), and the first inclined surface cooperates with each of the second inclined surfaces (31) to press the clamping assembly (3) to extend into or withdraw from the through hole (21).
6. The clamp device according to any one of claims 1 to 4, wherein a mounting groove (11) is provided on the mounting seat (1), and the abutting portion (4) is movably provided in the mounting groove (11) in the axial direction of the mounting seat (1).
7. Gripper device according to any one of claims 1 to 4, characterized in that the gripper device further comprises a reset element (6), the reset element (6) being arranged between the clamping assembly (3) and the chuck assembly (2) for driving the clamping assembly (3) to reset.
8. The clamp device according to any one of claims 1-4, further comprising a second drive device configured to drive the axial movement of the abutment (4) along the chuck assembly (2).
9. A processing machine comprising a clamping device according to any one of claims 1-8.
10. The machine tool of claim 9, further comprising:
the two groups of clamp devices are arranged on the base (200) at intervals and respectively clamped at two ends of the workpiece (400); and
the fixture comprises cutter assemblies (300), wherein the cutter assemblies (300) are arranged on the base (200) at intervals, the fixture device is arranged between the cutter assemblies (300), and the cutter assemblies (300) can be used for processing two ends of a workpiece (400) respectively.
CN202110272447.4A 2021-03-12 2021-03-12 Clamping device and processing machine tool Pending CN112872393A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115945705A (en) * 2023-02-19 2023-04-11 安徽工程大学 Circular-arc-shaped inner surface machining tool

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CN110216481A (en) * 2019-07-03 2019-09-10 中山市大地金属有限公司 The method of its processing valve body of digital control vertical lathe and application
CN212443305U (en) * 2020-06-08 2021-02-02 大连志有精密机械有限公司 Main shaft finish machining device of numerical control lathe
CN111774887A (en) * 2020-07-10 2020-10-16 科益展智能装备有限公司 Revolving platform and anchor clamps
CN212420416U (en) * 2020-07-10 2021-01-29 科益展智能装备有限公司 Revolving platform and anchor clamps
CN214557505U (en) * 2021-03-12 2021-11-02 清研瀚高科技(天津)有限公司 Clamping device and processing machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115945705A (en) * 2023-02-19 2023-04-11 安徽工程大学 Circular-arc-shaped inner surface machining tool
CN115945705B (en) * 2023-02-19 2023-08-04 安徽工程大学 Circular arc-shaped inner surface machining cutter

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