CN210081215U - Be suitable for frock clamp of high accuracy small part batch production - Google Patents

Be suitable for frock clamp of high accuracy small part batch production Download PDF

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Publication number
CN210081215U
CN210081215U CN201920784111.4U CN201920784111U CN210081215U CN 210081215 U CN210081215 U CN 210081215U CN 201920784111 U CN201920784111 U CN 201920784111U CN 210081215 U CN210081215 U CN 210081215U
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China
Prior art keywords
base
work piece
workpiece
mounting groove
batch production
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CN201920784111.4U
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Chinese (zh)
Inventor
李斌
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
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Abstract

The utility model relates to a be suitable for frock clamp of high accuracy finding batch production, including chuck and base, the upper portion of base is the work piece installation department, be equipped with work piece pedestal mounting groove on the top surface of work piece installation department, the fixed reference column that is equipped with perpendicular to tank bottom surface on the tank bottom surface of work piece pedestal mounting groove, under the installation state, the base embedding of work piece in the work piece pedestal mounting groove, the reference column passes a through-hole on the work piece, and with through-hole clearance fit, the upper portion of reference column is equipped with the screw hole, a screw threaded connection in the screw hole, the screwhead of screw supports the top surface of work piece, will the work piece compresses tightly on the tank bottom surface of work piece pedestal mounting groove, the chuck is located the lower part of base and its jack catch centre gripping are fixed the lower part of base. The utility model discloses can realize the batch processing of high accuracy small-size parts such as PES speculum with simple structure, lower cost, can show improvement production efficiency.

Description

Be suitable for frock clamp of high accuracy small part batch production
Technical Field
The utility model relates to a frock clamp is particularly useful for the batch production of the complicated and high small-size part of required precision of surface structure (for example PES speculum) that the single clamping needs to process.
Background
When small parts such as PES (polyether sulfone) reflectors are machined on a machining center machine tool, a process plate is usually required to be placed and installed on the machine tool in the traditional method, and then tool setting is performed once for each part, so that time and labor are wasted. If a batch of parts are produced, the production efficiency is obviously low, and because each part is processed in the respective processing coordinate system, the precision repeatability among the parts is not high. For small parts such as PES reflecting mirrors which need to be machined by single clamping and have complex surface structures and high precision requirements, the efficiency and the precision of a traditional machining mode are required to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be suitable for frock clamp of high accuracy finding batch production can realize the batch processing of the small-size part of high accuracy with simple structure, lower cost, can show improvement production efficiency.
The utility model discloses a main technical scheme has:
a tool clamp suitable for batch production of high-precision small parts comprises a chuck and a base, wherein the upper part of the base is a workpiece mounting part, a workpiece base mounting groove is arranged on the top surface of the workpiece mounting part, a positioning column vertical to the bottom surface of the groove is fixedly arranged on the bottom surface of the workpiece base mounting groove, the height of the positioning column is lower than that of the workpiece, and in a mounting state, the base of the workpiece is embedded into the mounting groove of the base of the workpiece, the positioning column passes through a through hole on the workpiece, and is in clearance fit with the through hole, the upper part of the positioning column is provided with a threaded hole, a screw is in threaded connection with the threaded hole, the screw head of the screw props against the top surface of the workpiece to reserve a positioning surface, the workpiece is pressed on the groove bottom surface of the workpiece base mounting groove, and the chuck is positioned at the lower part of the base and is clamped and fixed by the clamping jaws of the lower part of the base.
The profile of the bottom surface of the workpiece base mounting groove is polygonal, preferably rectangular.
The groove bottom surface profile of the workpiece base mounting groove preferably comprises an angular positioning straight edge.
The linear dimension of the groove bottom surface of the workpiece base mounting groove is preferably manufactured according to a single-side fit tolerance of +0.02mm in a corresponding direction with the base of the workpiece.
The diameter of the positioning column is preferably manufactured according to the matching tolerance of +0.02mm with the through hole.
The shape of the base is preferably a revolving body structure.
The upper portion of the base is generally larger in diameter than the lower portion of the base.
The depth of the workpiece base mounting groove is not more than the height of a base of a workpiece to be mounted.
Furthermore, the workpiece mounting part and the clamping cap are respectively provided with a pin hole extending in the radial direction, and a positioning pin simultaneously penetrates through the two pin holes in the workpiece mounting part and the clamping cap in a mounting state.
A shim may also be provided between the top surface of the workpiece and the head of the screw.
The utility model has the advantages that:
the utility model can realize that the workpiece upper machine tool does not need to be straightened and adjusted back and forth, thereby obviously saving labor and working hours.
Because the utility model discloses being equivalent to the standard component, can realizing that a plurality of work pieces adopt unified coordinate system to process, consequently not only the machining precision of single work piece is high, and the precision repeatability between the work piece of same lot is good moreover.
Adopt the utility model discloses afterwards, traditional tool setting can be changed into to anchor clamps, consequently can be without each work piece to a sword, further practiced thrift man-hour.
The utility model discloses simple structure is small and exquisite, and is light, nimble, easy preparation, and can replace, and the advantage is especially obvious when being used in batch production.
The utility model discloses not only can be used to processing, still can be used in the measurement of some complicated curved surface work pieces, in case the clamping is fixed, positioning repeatability is good, and the determination of measuring basis is simplified, consequently also correspondingly has improved measurement of efficiency.
Drawings
Fig. 1 is an exploded view of an embodiment of the present invention.
Detailed Description
The utility model discloses a be suitable for frock clamp of high accuracy finding batch production, as shown in fig. 1, including chuck 1 and base 2, the upper portion of base is work piece installation department 21, be equipped with work piece pedestal mounting groove 211 on the top surface of work piece installation department, the fixed reference column 212 that is equipped with the perpendicular to tank bottom surface on the tank bottom surface of work piece pedestal mounting groove, the height that highly is less than the work piece of reference column. In the installation state, the base of the workpiece is embedded into the workpiece base installation groove, and the positioning column penetrates through a through hole in the workpiece and is in clearance fit with the through hole. The upper portion of reference column is equipped with the screw hole, a screw 3 threaded connection in the screw hole, the screwhead of screw supports on the reservation locating surface of the top surface of work piece, compresses tightly the work piece on the tank bottom surface of work piece base mounting groove. The chuck is located in the lower portion of the base and its jaws clamp the lower portion 22 of the base.
The profile of the bottom surface of the workpiece base mounting groove is consistent with the horizontal profile of a base (usually a process base) of a workpiece to be clamped, the base is generally polygonal so as to prevent circumferential rotation of the workpiece, and the base is preferably rectangular and has a simpler structure.
The groove bottom profile of the workpiece mount groove can also be other shapes, such as circular. Meanwhile, the groove bottom surface profile of the workpiece base mounting groove preferably comprises an angular positioning straight edge 213, the workpieces can be prevented from moving circumferentially in the machining process, and the same batch of workpieces can be ensured to be mounted on the fixture at the same azimuth angle before machining is started.
The linear dimension of the groove bottom surface of the workpiece base mounting groove can be manufactured according to the unilateral matching tolerance of the workpiece base to be mounted in the corresponding direction, wherein the unilateral matching tolerance is +0.02 mm. Of course, the machining precision of the workpiece is specifically determined by reference. The higher the requirement on the machining precision of the workpiece is, the smaller the fit clearance between the workpiece base installation groove and the base of the workpiece is, and the assembly precision between the workpiece base installation groove and the base of the workpiece is at least not lower than the required precision of the workpiece.
The diameter of the positioning column is preferably manufactured according to the matching tolerance of +0.02mm with the through hole.
The shape of the base is not limited, and the base is preferably in a revolving body structure due to the requirement of structure simplification, so that the base is convenient to process.
The lower part of the base is mainly used for clamping and fixing the chuck, and the size is not limited. In the embodiment shown in the drawings, the base is preferably arranged in a stepped shaft structure with a large upper part and a small lower part, namely, the diameter of the upper part of the base is larger than that of the lower part of the base, when the chuck is used for clamping, the jaws are clamped on the outer cylindrical surface of the lower part of the base, and the top surfaces of the jaws are abutted on the step surface between the upper part and the lower part of the base. Of course, the diameter of the lower portion of the base can be larger than that of the upper portion, correspondingly, an inner hole with a downward opening can be formed in the lower portion of the base, and clamping jaw clamping can be achieved by using the cylindrical surface of the inner hole and the inner end face of the inner hole as positioning faces.
The depth of the workpiece base mounting groove is not larger than the height of a base of a workpiece to be mounted, so that the clamping cap firmly presses the base of the workpiece in the workpiece base mounting groove, and the workpiece is fixed in the height direction.
A spacer 4 may also be provided between the top surface of the workpiece and the head of the screw to prevent the pressure of the head of the screw from damaging the top surface of the workpiece.
During installation, a workpiece penetrates through the positioning column and is installed in the workpiece base installation groove on the base, the top surface of the positioning column is not higher than the top surface of the workpiece at the moment, particularly, a positioning surface is reserved around the top of the through hole, then a gasket is placed on the top surface of the workpiece, the gasket penetrates through the gasket and is screwed into the positioning column until the gasket is tightly pressed on the top surface of the workpiece, the workpiece is tightly pressed on the workpiece base installation groove at the moment, and positioning and clamping of the workpiece in the height direction are completed.
The utility model discloses can be used for the batch production of high accuracy, finding, help obviously improving production efficiency and machining precision, the clamping that the PES speculum that especially is applicable to and uses in the car light adds man-hour on the machining center lathe.

Claims (9)

1. The utility model provides a be suitable for frock clamp of high accuracy small part batch production which characterized in that: including chuck and base, the upper portion of base is the work piece installation department, be equipped with the work piece pedestal mounting groove on the top surface of work piece installation department, the fixed reference column that is equipped with the perpendicular to tank bottom surface on the tank bottom surface of work piece pedestal mounting groove, the height that highly is less than the work piece of reference column, under the installation state, the base embedding of work piece in the work piece pedestal mounting groove, the reference column passes a through-hole on the work piece, and with through-hole clearance fit, the upper portion of reference column is equipped with the screw hole, a screw threaded connection be in the screw hole, the screwhead of screw supports the top surface of work piece and reserves the locating surface, will the work piece compresses tightly on the tank bottom surface of work piece pedestal mounting groove, the chuck is located the lower part of base and its.
2. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the profile of the bottom surface of the workpiece base mounting groove is polygonal.
3. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the profile of the bottom surface of the workpiece base mounting groove comprises an angular positioning straight edge.
4. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the linear dimension of the groove bottom surface of the workpiece base mounting groove is manufactured according to the unilateral matching tolerance of +0.02mm in the corresponding direction with the base of the workpiece.
5. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the diameter of the positioning column is manufactured according to the condition that the fit tolerance between the positioning column and the through hole is +0.02 mm.
6. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the shape of the base is a revolving body structure.
7. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the upper portion of the base has a larger diameter than the lower portion of the base.
8. The tooling clamp suitable for batch production of high-precision small parts according to claim 1, wherein: the depth of the workpiece base mounting groove is not more than the height of a base on which a workpiece is to be mounted.
9. The tooling clamp suitable for batch production of high-precision small parts according to any one of claims 1 to 8, characterized in that: and a gasket is arranged between the top surface of the workpiece and the screw head of the screw.
CN201920784111.4U 2019-05-28 2019-05-28 Be suitable for frock clamp of high accuracy small part batch production Active CN210081215U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920784111.4U CN210081215U (en) 2019-05-28 2019-05-28 Be suitable for frock clamp of high accuracy small part batch production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920784111.4U CN210081215U (en) 2019-05-28 2019-05-28 Be suitable for frock clamp of high accuracy small part batch production

Publications (1)

Publication Number Publication Date
CN210081215U true CN210081215U (en) 2020-02-18

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CN201920784111.4U Active CN210081215U (en) 2019-05-28 2019-05-28 Be suitable for frock clamp of high accuracy small part batch production

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111230547A (en) * 2020-02-25 2020-06-05 成都飞机工业(集团)有限责任公司 Flexible and rapid clamping fixture and clamping method for rotary machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111230547A (en) * 2020-02-25 2020-06-05 成都飞机工业(集团)有限责任公司 Flexible and rapid clamping fixture and clamping method for rotary machine tool

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