CN214641925U - Self-centering clamp for flywheel housing processing - Google Patents
Self-centering clamp for flywheel housing processing Download PDFInfo
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- CN214641925U CN214641925U CN202120686721.8U CN202120686721U CN214641925U CN 214641925 U CN214641925 U CN 214641925U CN 202120686721 U CN202120686721 U CN 202120686721U CN 214641925 U CN214641925 U CN 214641925U
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- mounting seat
- central pull
- flywheel
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- 238000003754 machining Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 27
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a self-centering clamp for flywheel shell processing, which comprises a clamp body arranged on a machine tool, wherein the center of the clamp body is provided with a mounting seat, three supporting blocks radially arranged are uniformly distributed on the periphery of the mounting seat, a slide way which is just opposite to the center of the mounting seat is arranged on the supporting blocks, a synchronously telescopic slide block is connected on the slide way in a sliding fit manner, and the outer end part of the slide block is provided with a clamping jaw which is adaptive to the inner wall structure of the flywheel shell; three positioning support nails which are arranged in a triangular shape and are vertically upward are arranged on the mounting seat; when the three-jaw tensioning mechanism is used, a three-point supporting surface formed by the positioning supporting nails forms a supporting surface of the inner wall of the front end surface of the flywheel shell, and the three jaws can automatically adjust the central position of the flywheel shell in the stretching and tensioning process and are attached to the inner wall of the flywheel shell to form a tensioning and positioning part. The clamp realizes rough machining and finish machining of the flywheel housing by one-time clamping, reduces working procedures and clamping time, and improves efficiency; the centering precision is high, and the clamping is reliable; the clamping jaw can be replaced to realize the processing of products with different specifications.
Description
Technical Field
The utility model relates to an anchor clamps technical field, concretely relates to from centering anchor clamps for bell housing processing.
Background
In the process of machining flywheel casing products, rough machining is usually performed firstly, and then finish machining is performed, and the main purpose of rough machining is to provide a positioning reference for finished products. Meanwhile, different clamps are required for clamping operation in rough machining and finish machining. The processing mode increases working procedures and clamping time, and reduces production efficiency compared with the prior art.
Disclosure of Invention
In order to solve the problem, the utility model provides a from centering anchor clamps for bell housing processing.
Therefore, the technical scheme of the utility model is that: the utility model provides a from centering anchor clamps for bell housing processing, is including installing anchor clamps body on the lathe, its characterized in that: the center of the clamp body is provided with a mounting seat, three supporting blocks radially arranged are uniformly distributed on the periphery of the mounting seat, a slideway right facing the center of the mounting seat is arranged on each supporting block, a sliding block capable of synchronously stretching and retracting is connected to the slideway in a sliding fit manner, and the outer end part of the sliding block is provided with a clamping jaw adapted to the inner wall structure of the flywheel shell; the clamp body positioned between the mounting arms is provided with three positioning support nails which are arranged in a triangular shape and are vertically and upwards arranged;
when the three-jaw tensioning mechanism is used, a three-point supporting surface formed by the positioning supporting nails forms a supporting surface of the inner wall of the front end surface of the flywheel shell, and the three jaws can automatically adjust the central position of the flywheel shell in the stretching and tensioning process and are attached to the inner wall of the flywheel shell to form a tensioning and positioning part.
The technical scheme is further improved as follows: the clamp body, the mounting seat and the supporting block are of an integrally formed structure, stability is guaranteed, and machining precision is guaranteed.
The technical scheme is further improved as follows: the synchronous telescopic sliding block has the specific structure that a mounting cavity is arranged in the middle of the mounting seat, an open slot is formed in the position corresponding to the supporting block, the center of the mounting cavity is rotatably connected with a central pull rod, the upper end of the central pull rod is provided with a rotating force application part and is provided with a corresponding manual rotating tool, a wedge block with the same axial lead is connected to the central pull rod through the external thread of the central pull rod, and when the central pull rod rotates, the wedge block moves up and down in the mounting cavity along the central pull rod and is in sliding fit with the mounting cavity; the wedge block is formed by processing a cylinder with a threaded hole in the middle, the side faces of the cylinder corresponding to the three sliding blocks are all provided with oblique planes extending downwards from the top surface, the outer peripheral surface of the cylinder forms a structure with the oblique planes and arc surfaces arranged in a staggered mode, the inner end face of the sliding block and the wedge block are mutually attached oblique planes, the bottom of the sliding block is provided with a spring installation cavity along the direction of the slide way, a return spring is arranged in the spring installation cavity, and a spring limiting pin is arranged at the position, corresponding to the spring installation cavity, on the slide way. The pure mechanical structure is reasonable in arrangement and low in manufacturing cost, can be completed manually without arranging other facilities, and simultaneously ensures the synchronous movement of the clamping jaws.
The technical scheme is further improved as follows: the central rotating connection of the installation cavity is provided with a central pull rod, the concrete connection structure is that an annular bulge extending towards the center is arranged in the installation cavity, an installation support is fixed on the annular bulge, the central pull rod penetrates through the middle of the installation support, a bearing is arranged between the step surface of the central pull rod and the upper end surface of the installation support, and the lower end surface of the installation support is connected with an end surface bearing and fixed on the central pull rod through a nut. The purpose is in order to guarantee the installation intensity of center pull rod, laborsaving, reduction intensity of labour when rotating simultaneously.
The technical scheme is further improved as follows: the rotation force application part at the upper end of the central pull rod is a groove matched with the head of a manual rotating tool, and the tool is simple in structure, convenient to process, simple and practical.
The technical scheme is further improved as follows: the slide both sides are equipped with limit baffle, with slider sliding fit to do not take place the skew when guaranteeing the slider removal, ensure the machining precision.
The technical scheme is further improved as follows: the mounting seat and the supporting block are provided with cover plates which are fixed through screws, and the cover plates are provided with hole cavities through which the central pull rod penetrates out, so that scrap iron is prevented from entering the inside of the clamp during machining and affecting the normal use of the clamp.
The technical scheme is further improved as follows: the clamping jaw and the sliding block are of a split structure, a groove is formed in the outer end face of the sliding block, a corresponding bulge is formed in the side, opposite to the sliding block, of the clamping jaw, a corresponding mounting hole is formed in the groove and the bulge, the groove and the bulge are fixed through bolts, the tensioning and positioning portion of the clamping jaw is of an arc structure matched with the inner wall structure of the flywheel shell, an avoiding notch is formed in the middle of the clamping jaw, the purpose is to avoid inaccurate positioning or increase a positioning surface caused by defects on a blank, and the arc surfaces on two sides are provided with vertical grooves at intervals to increase friction; the universal flywheel shell can be realized by only replacing clamping jaws with different sizes according to flywheel shells with different models by adopting the positioning pins.
Has the advantages that: compared with the prior art, the utility model can realize the rough and fine machining of flywheel casing products by different clamping, and reduce the times of process procedures, thereby reducing the clamping time and improving the processing efficiency; meanwhile, the clamp has high centering precision and reliable clamping; and moreover, the flywheel shell products with different specifications can be processed by replacing the clamping jaws.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is an installation diagram of the installation seat and the supporting block on the fixture body of the present invention.
Fig. 4 is a sectional view taken along line a-a in fig. 3.
Fig. 5 is a right side view of fig. 4.
Fig. 6 is a top view of the jaw of the present invention.
Fig. 7 is a front view structural view of fig. 6.
Fig. 8 is a structural view of the slider of the present invention.
Fig. 9 is a top view of fig. 8.
Fig. 10 is a plan view of the wedge of the present invention.
Fig. 11 is a front view of fig. 10.
Fig. 12 is a structural view of the tie bar of the present invention.
Fig. 13 is a right side view of fig. 12.
Fig. 14 is a structural view of the positioning support pin of the present invention.
Fig. 15 is a structural view of the hand-operated rotary tool of the present invention.
Shown in the figure: 1. a clamp body; 2. a mounting seat; 21. an annular projection; 22. an open slot; 3. a support block; 31. a pin hole; 4. a slider; 41. a spring mounting cavity; 42. opening the groove; 5. a claw; 51. a pawl seat; 52. a protrusion; 6. positioning the support nail; 7. a central pull rod; 71. a step surface; 72. a groove; 8. a wedge block; 81. a chamfer plane; 9. a return spring; 10. a spring limit pin; 11. a bearing; 12. an end face bearing; 13. a nut; 14. a limit baffle; 15. a cover plate; 16. a manual turning tool; 17. a pre-positioning mechanism; A. a flywheel housing.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
It should be noted that: the utility model discloses in the inner chamber profile of bell housing A is circular, and the terminal surface definition of wherein taking oil blanket hole one side is preceding terminal surface.
The utility model discloses as shown in fig. 1 and fig. 15:
a self-centering clamp for flywheel shell machining comprises a clamp body 1 arranged on a machine tool, wherein a mounting seat 2 is arranged at the center of the clamp body, three supporting blocks 3 which are radially arranged are uniformly distributed on the periphery of the mounting seat, a slideway which is right opposite to the center of the mounting seat is arranged on each supporting block, a sliding block 4 which can be synchronously stretched and contracted is connected to the slideway in a sliding fit mode, and a clamping jaw 5 which is matched with the inner wall structure of a flywheel shell is arranged at the outer end part of each sliding block; the clamp body positioned between the mounting arms is provided with three positioning support nails 6 which are arranged in a triangular shape and are vertically and upwards arranged;
when the three-jaw tensioning mechanism is used, a three-point supporting surface formed by the positioning supporting nails forms a supporting surface of the inner wall of the front end surface of the flywheel shell, and the three jaws can automatically adjust the central position of the flywheel shell in the stretching and tensioning process through extrusion and are attached to the inner wall of the flywheel shell to form a tensioning and positioning part.
The mounting seat 2 and the supporting block 3 are of an integrally formed structure, stability is guaranteed, and machining precision is guaranteed.
The slider 4 capable of synchronously stretching is structurally characterized in that a mounting cavity is arranged in the middle of the mounting seat, an open slot 22 is formed in the position corresponding to the supporting block, a central pull rod 7 is connected to the center of the mounting cavity in a rotating mode in the vertical direction, a rotating force application part is arranged at the upper end of the central pull rod, a corresponding manual rotating tool 16 (in a T shape or a cross shape, a horizontal section handle is a movable handle inserted in the vertical section, labor is saved, the assembly and disassembly are convenient and the place is not occupied), the central pull rod is connected with a wedge block 8 with the same axial line through T-shaped threads (the T-shaped threads can reduce the number of screwing or unscrewing turns and shorten the clamping time), and when the central pull rod 7 rotates, the wedge block 8 moves up and down along the central pull rod in the mounting cavity and is in sliding fit with the mounting cavity; the wedge block 8 is formed by processing a cylinder with a threaded hole in the middle, the side faces of the cylinder corresponding to the three sliding blocks are all provided with inclined planes 81 extending downwards from the top surface, the outer peripheral surface of the cylinder forms a structure with the inclined planes and arc surfaces arranged in a staggered mode, the inner end face of the sliding block 4 and the wedge block are mutually attached inclined planes, a spring installation cavity 41 is arranged at the bottom of the sliding block along the direction of the slide way, a return spring 9 is arranged in the spring installation cavity, and a pin hole 31 is arranged at the position, corresponding to the spring installation cavity, on the slide way and is limited through a spring limiting pin 10. The pure mechanical structure is reasonable in arrangement and low in manufacturing cost, can be completed manually without arranging other facilities, and simultaneously ensures the synchronous movement of the clamping jaws.
The installation cavity central authorities rotate to be connected with central pull rod 7, and concrete connection structure does, is equipped with the annular arch 21 that extends the setting to the center in the installation cavity, is fixed with erection support on the annular arch, and central pull rod passes, the step face 71 of central pull rod (the diameter on central pull rod upper portion is greater than the diameter of lower part, the centre is equipped with transitional coupling portion, is formed with the step face) and is equipped with bearing 11 between the up end of erection support, wherein: the step surface is abutted with the inner ring of the bearing, and the bulge part on the mounting support is abutted with the outer ring of the bearing to form a support; the lower end face of the mounting support is connected with an end face bearing 12 and fixed on the central pull rod through a nut 13. The purpose is in order to guarantee the installation intensity of center pull rod, laborsaving, reduction intensity of labour when rotating simultaneously.
The rotating force application part at the upper end of the central pull rod 7 is matched with the groove 72 (such as an inner hexagonal structure) of the head part of a manual rotating tool, and the tool is simple in structure, convenient to process, simple and practical.
The slide both sides are equipped with limit baffle 14, with slider sliding fit, simultaneously on limit baffle easy to assemble apron to do not take place the skew when guaranteeing the slider removal, ensure the machining precision.
The mounting seat 2 and the supporting block 3 are provided with cover plates 15 which are fixed by screws, and the cover plates are provided with hole cavities for the central pull rod to penetrate out, so that scrap iron is prevented from entering the clamp during processing, and the normal use of the clamp is prevented from being influenced.
The jack catch adopts split type structure with the slider, be equipped with the open groove 42 of horizontal direction on the outer terminal surface of slider 4, jack catch 5 is connected on jack catch seat 51, be equipped with corresponding arch 52 on the jack catch seat with the slider opposite side, open groove is equipped with the round pin shaft hole that corresponds and fixes through the locating pin with protruding, the tight location portion that rises of jack catch is the arc structure that suits with bell housing inner wall structure, the centre is equipped with dodges the opening (the purpose is avoided the blank on the defect to lead to fixing a position inaccurately or increase the locating surface), the arc face of both sides is equipped with spaced vertical recess, in order to increase frictional force. The universal flywheel can be realized by only replacing clamping jaws with different sizes according to flywheel shells of different models through the positioning pin connection.
In addition, a plurality of pre-positioning mechanisms 17 (shown in fig. 1) corresponding to the outer contour of the flywheel housing can be arranged on the clamp body.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a from centering anchor clamps for bell housing processing, is including installing the anchor clamps body on the lathe, its characterized in that: the center of the clamp body is provided with a mounting seat, three supporting blocks radially arranged are uniformly distributed on the periphery of the mounting seat, a slideway right facing the center of the mounting seat is arranged on each supporting block, a sliding block capable of synchronously stretching and retracting is connected to the slideway in a sliding fit manner, and the outer end part of the sliding block is provided with a clamping jaw adapted to the inner wall structure of the flywheel shell; the clamp body positioned between the mounting arms is provided with three positioning support nails which are arranged in a triangular shape and are vertically and upwards arranged;
when the three-jaw tensioning mechanism is used, a three-point supporting surface formed by the positioning supporting nails forms a supporting surface of the inner wall of the front end surface of the flywheel shell, and the three jaws can automatically adjust the central position of the flywheel shell in the stretching and tensioning process and are attached to the inner wall of the flywheel shell to form a tensioning and positioning part.
2. The self-centering clamp for flywheel housing machining according to claim 1, is characterized in that: the clamp body, the mounting seat and the supporting block are of an integrally formed structure.
3. The self-centering clamp for flywheel housing machining according to claim 1 or 2, characterized in that: the synchronous telescopic sliding block has the specific structure that a mounting cavity is arranged in the middle of the mounting seat, an open slot is formed in the position corresponding to the supporting block, the center of the mounting cavity is rotatably connected with a central pull rod, the upper end of the central pull rod is provided with a rotating force application part and is provided with a corresponding manual rotating tool, a wedge block with the same axial lead is connected to the central pull rod through the external thread of the central pull rod, and when the central pull rod rotates, the wedge block moves up and down in the mounting cavity along the central pull rod and is in sliding fit with the mounting cavity; the wedge block is formed by processing a cylinder with a threaded hole in the middle, the side faces of the cylinder corresponding to the three sliding blocks are all provided with oblique planes extending downwards from the top surface, the outer peripheral surface of the cylinder forms a structure with the oblique planes and arc surfaces arranged in a staggered mode, the inner end face of the sliding block and the wedge block are mutually attached oblique planes, the bottom of the sliding block is provided with a spring installation cavity along the direction of the slide way, a return spring is arranged in the spring installation cavity, and a spring limiting pin is arranged at the position, corresponding to the spring installation cavity, on the slide way.
4. The self-centering clamp for flywheel housing machining according to claim 3, is characterized in that: the central rotating connection of the installation cavity is provided with a central pull rod, the concrete connection structure is that an annular bulge extending towards the center is arranged in the installation cavity, an installation support is fixed on the annular bulge, the central pull rod penetrates through the middle of the installation support, a bearing is arranged between the step surface of the central pull rod and the upper end surface of the installation support, and the lower end surface of the installation support is connected with an end surface bearing and fixed on the central pull rod through a nut.
5. The self-centering clamp for flywheel housing machining according to claim 3, is characterized in that: the rotation force application part at the upper end of the central pull rod is a groove matched with the head of the manual rotation tool.
6. The self-centering fixture for flywheel housing machining according to claim 1, 2, 4 or 5, wherein: and limiting baffles are arranged on two sides of the slide way and are in sliding fit with the slide block.
7. The self-centering clamp for flywheel housing machining according to claim 6, is characterized in that: and the mounting seat and the supporting block are provided with cover plates which are fixed through screws, and the cover plates are provided with hole cavities through which the central pull rods penetrate.
8. The self-centering clamp for flywheel housing machining according to claim 3, is characterized in that: and the mounting seat and the supporting block are provided with cover plates which are fixed through screws, and the cover plates are provided with hole cavities through which the central pull rods penetrate.
9. The self-centering fixture for flywheel housing machining according to claim 1, 2, 4, 5, 7 or 8, wherein: the clamping jaw and the sliding block are of a split structure, a groove is formed in the outer end face of the sliding block, corresponding protrusions are arranged on the opposite sides of the clamping jaw and the sliding block, corresponding pin hole holes are formed in the groove and the protrusions and are fixed through locating pins, the tensioning and positioning portion of the clamping jaw is of an arc structure matched with the inner wall structure of the flywheel shell, an avoiding opening is formed in the middle of the clamping jaw, and vertical grooves are formed in the arc faces of the two sides at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686721.8U CN214641925U (en) | 2021-04-06 | 2021-04-06 | Self-centering clamp for flywheel housing processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686721.8U CN214641925U (en) | 2021-04-06 | 2021-04-06 | Self-centering clamp for flywheel housing processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214641925U true CN214641925U (en) | 2021-11-09 |
Family
ID=78458881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120686721.8U Active CN214641925U (en) | 2021-04-06 | 2021-04-06 | Self-centering clamp for flywheel housing processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214641925U (en) |
-
2021
- 2021-04-06 CN CN202120686721.8U patent/CN214641925U/en active Active
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Address after: 442004 No.60 Xinjiang road, Zhangwan District, Shiyan City, Hubei Province Patentee after: Dongshi Automotive Power Parts (Hubei) Co.,Ltd. Address before: 442004 No.60 Xinjiang road, Zhangwan District, Shiyan City, Hubei Province Patentee before: DONGFENG (SHIYAN) ENGINE PARTS LTD. |