CN219684649U - Positioning and clamping device for brake drum machining - Google Patents
Positioning and clamping device for brake drum machining Download PDFInfo
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- CN219684649U CN219684649U CN202320563835.2U CN202320563835U CN219684649U CN 219684649 U CN219684649 U CN 219684649U CN 202320563835 U CN202320563835 U CN 202320563835U CN 219684649 U CN219684649 U CN 219684649U
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- 238000003754 machining Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 210000000078 claw Anatomy 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a positioning and clamping device for processing a brake drum, which comprises a turntable, a clamping and positioning mechanism, a supporting plate arranged on the center of the turntable and a first motor for driving the turntable to rotate, wherein the clamping and positioning mechanism comprises a group of clamping jaws, a group of positioning bolts and a group of inner clamping blocks which are arranged in a staggered manner with the positioning bolts along the circumferential direction of the turntable, the clamping jaws are provided with a support and a group of outer clamping blocks, an arc-shaped elastic clamping plate is arranged between the outer clamping blocks, and compression springs are connected between two sides of the elastic clamping plate and the middle part of the clamping jaws; the supporting plate is radially provided with a plurality of groups of positioning threaded holes along the turntable, the inner clamping block and the elastic clamping plate are respectively provided with a pressure sensor with an external controller, the turntable is provided with an alarm, a first driving piece and a second driving piece which respectively drive the support and the inner clamping block to slide along the radial direction of the turntable, and the alarm, the first driving piece and the second driving piece are respectively connected with the output end of the external controller through electric signals; the whole machining precision is high, the application range is wide, and the machining efficiency is high.
Description
Technical Field
The utility model relates to the technical field of brake drum processing, in particular to a positioning and clamping device for brake drum processing.
Background
The brake drum is a brake tool of an automobile, is a key part for generating braking force in the brake, and generates the braking force by utilizing the friction resistance between the brake shoe and the brake drum, and the structural performance of the brake drum seriously influences the running safety of the automobile, so that the requirements on the strength and the inner side smoothness of the brake drum are very high in the process of processing the brake drum; the brake drum is composed of a rim 37 and a flange 38, the flange 38 is provided with a mounting hole 39, the cross sections of the rim 37 and the flange 38 are circular, the joint of the flange 38 and the rim 37 is provided with a transition part 40 which is obliquely arranged, and in order to ensure the stability during processing, a clamp for processing the brake drum is required to be used for positioning the brake drum;
however, the existing brake drum processing clamps are generally of two types, one type is to fix the brake drum by adopting a straight clamping plate, the fixation of the brake drum is not stable enough, the brake drum can generate tiny displacement, the center point of the brake drum is deviated, and the positions of devices such as polishing or paint spraying are fixed, so that the follow-up procedure is not influenced, the deviation is also required to be observed manually, the error is easily generated in the observation of eyes, and the problems of low processing precision and low processing efficiency are caused; the other is the arc clamping plate which is matched and customized according to the model of the brake drum and is fixed, so that the clamping and matching of the brake drums with different heights and diameters cannot be realized, and the problems of low machining efficiency and small application range are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the positioning and clamping device for processing the brake drum, which has high clamping force, avoids the deviation of the center point of the brake drum, is applicable to the brake drums with different diameters, and has the advantages of high processing precision, large application range and high processing efficiency.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the positioning and clamping device for machining the brake drum comprises a turntable, a clamping and positioning mechanism, a supporting plate and a first motor, wherein the supporting plate is arranged on the center of the turntable, the first motor drives the turntable to rotate automatically, the clamping and positioning mechanism comprises a group of clamping jaws, a group of positioning bolts and a group of inner clamping blocks used for clamping the inner side of a flange part, and the inner clamping blocks and the positioning bolts are arranged in a staggered manner; the clamping jaw is provided with a support and a group of outer clamping blocks used for clamping the outer side of the rim part, an elastic clamping plate arranged in an arc shape is arranged between the outer clamping blocks, and compression springs are connected between the two sides of the elastic clamping plate and the middle part of the clamping jaw; the support plate is radially provided with a plurality of groups of positioning threaded holes for positioning bolt installation along the turntable, the turntable is provided with an alarm, the inner clamping blocks and the elastic clamping plates are all provided with pressure sensors, the pressure sensors are electrically connected with an external controller, the turntable is provided with a first driving piece and a second driving piece which respectively drive the support and the inner clamping blocks to slide along the radial direction of the turntable, and the alarm, the first driving piece and the second driving piece are electrically connected with the output end of the external controller.
Further set up: the elastic clamping plate comprises a fixed clamping plate and an elastic pad, wherein the fixed clamping plate and the elastic pad are both in arc-shaped arrangement, the middle part of one side of the elastic pad is fixedly connected with the middle part of one side of the fixed clamping plate, the middle part of the clamping jaw is detachably connected with a connecting plate which is in an inverted T-shaped arrangement, two ends of the elastic pad are connected with the transverse ends of the connecting plate through compression springs, the other side of the fixed clamping plate is fixedly connected with the vertical end of the connecting plate, and the other side of the elastic pad is provided with anti-skid patterns.
Further set up: the first driving piece is a first electric cylinder, the first electric cylinder is arranged on the side face of the rotary table, a first sliding block is arranged at the bottom of the support, the rotary table is provided with a first sliding groove for the first sliding block to slide along the radial direction of the rotary table, and a push rod of the first electric cylinder is fixedly connected with one side of the first sliding block.
Further set up: the second driving piece is a second electric cylinder, the second electric cylinder is arranged at the center of the upper end of the rotary table, a second sliding block is arranged at the bottom of the inner clamping block, a second sliding groove for the second sliding block to slide along the radial direction of the rotary table is formed in the supporting plate, a connecting rod is hinged between the bottom of the second sliding block and a top rod of the second electric cylinder, and the rotary table and the second sliding groove are provided with yielding guide holes for the connecting rod to pass through.
Further set up: the clamping jaw is slidably connected to one side of the vertical end of the supporting seat along the thickness of the clamping jaw, the height adjusting assembly comprises an adjusting bolt, a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are respectively arranged on one side of the vertical end of the supporting seat from top to bottom, one end of the adjusting bolt is connected with the first bearing seat, one end of the adjusting bolt is fixedly connected with a handle, and the upper end of the clamping jaw is provided with an adjusting threaded hole; the other end of the adjusting bolt penetrates through the adjusting threaded hole and is connected with the second bearing seat.
Further set up: the first bearing seat, the second bearing seat and the clamping jaw are all positioned above the transverse end of the supporting seat, and the transverse end of the supporting seat is detachably provided with a limiting supporting block for supporting the transition part of the brake drum.
Further set up: and the limit supporting block is sleeved with an anti-slip pad.
Further set up: a plurality of first scale groove groups and a plurality of second scale groove groups are uniformly distributed on the supporting plate along the circumference of the rotary table, the first scale groove groups are positioned on one side of the positioning threaded holes, and the second scale groove groups are positioned on one side of the inner clamping blocks.
Further set up: the outer peripheral surface of the rotary table is sleeved with a protective cover for placing scraps to splash, and the clamping and positioning mechanism, the first driving piece and the second driving piece are both positioned on the protective cover.
In summary, the utility model locates the brake drums with different inner diameters through a group of locating bolts and a plurality of groups of locating threaded holes which are matched with the mounting holes of the flange part of the brake drum, thus playing the roles of preliminary locating the brake drum and expanding the application range; the first driving piece, the clamping claw, the elastic clamping plate, the second driving piece, the inner clamping block and the pressure sensor are used for automatically clamping the inner side and the outer side of the brake drum method, so that the brake drum can be repositioned and clamped; the outer clamping blocks and the compression springs are arranged in an arc shape, and the two clamping contact modes of point-surface and surface-surface are combined with each other, so that the clamping force on the brake drum is enhanced, the elastic clamping plates are ensured to be in full contact with the outer side surfaces of the brake drums with different outer diameters, and the effects of further improving the processing precision and expanding the application range are achieved; the automatic reminding function of the brake drum deviation and the function of ensuring the subsequent processing precision are achieved through the alarm and the pressure sensor; the whole clamping force is high, the offset of the center point of the brake drum is avoided, the clamping force is applicable to brake drums with different diameters, and the clamping force has the advantages of high machining precision, wide application range and high machining efficiency.
Drawings
FIG. 1 is a schematic structural view of a conventional brake drum;
FIG. 2 is a schematic view of the overall structure of the brake drum according to the embodiment of the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2A;
FIG. 4 is a schematic diagram of an embodiment of the present utility model;
FIG. 5 is a partial cross-sectional view of an embodiment of the present utility model;
FIG. 6 is a top view of an embodiment of the present utility model;
FIG. 7 is an exploded view of an embodiment of the present utility model;
fig. 8 is a schematic view of a part of the structure of an embodiment of the present utility model.
In the figure: 1. a turntable; 2. a support plate; 3. a first motor; 4. a claw; 5. positioning bolts; 6. an inner clamping block; 7. a support; 8. an outer clamping block; 9. an elastic clamping plate; 10. a compression spring; 11. positioning the threaded hole; 12. an alarm; 13. a pressure sensor; 14. a first driving member; 15. a second driving member; 16. a fixed clamping plate; 17. an elastic pad; 18. a connecting plate; 19. anti-skid lines; 20. a first slider; 21. a first chute; 22. a second slider; 23. a second chute; 24. a connecting rod; 25. a relief guide hole; 26. a height adjustment assembly; 27. an adjusting bolt; 28. a first bearing seat; 29. a second bearing seat; 30. a support base; 31. a handle; 32. adjusting the threaded hole; 33. a limit supporting block; 34. an anti-slip pad; 35. a first set of score slots; 36. a second set of scale grooves; 37. a rim portion; 38. a flange portion; 39. a mounting hole; 40. a transition portion.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings. It should be noted that the words "upper" and "lower" used in the following description refer to directions in fig. 5, and the words "bottom" and "top" refer to directions in fig. 5 toward the geometric center of a particular component.
The most critical concept of the utility model is as follows: through a group of positioning bolts 5 and a plurality of groups of positioning threaded holes 11, the functions of preliminary positioning of the brake drum, improving the machining precision and expanding the application range are achieved; the brake drum is repositioned and clamped through the first driving piece 14, the clamping jaw 4, the elastic clamping plate 9, the second driving piece 15, the inner clamping block 6 and the pressure sensor 13; the outer clamping blocks 8 and the compression springs 10 are adopted, the elastic clamping plates 9 are arranged in an arc shape, and the two clamping contact modes of point-surface and surface-surface are combined with each other, so that the clamping force on the brake drum is enhanced, the elastic clamping plates 9 are ensured to be in comprehensive contact with the outer side surfaces of the brake drums with different outer diameters, and the effects of further improving the processing precision and expanding the application range are achieved; the alarm 12 and the pressure sensor 13 play roles in automatically reminding the deflection of the brake drum and ensuring the subsequent processing precision;
the utility model improves the clamping force on the brake drum through multiple positioning and clamping, avoids influencing the processing precision due to the deviation of the center point of the brake drum, is applicable to brake drums with different diameters, has the function of automatically reminding the deviation of the brake drum, avoids the problems of low processing precision and low processing efficiency caused by the deviation error judged by human eyes, and has the advantages of high processing precision, wide application range and high processing efficiency.
Referring to fig. 2 to 8, a positioning and clamping device for processing a brake drum includes a turntable 1, a clamping and positioning mechanism, a supporting plate 2 erected on the center of the turntable 1, and a first motor 3 for driving the turntable 1 to rotate automatically, wherein the clamping and positioning mechanism includes a group of claws 4, a group of positioning bolts 5 and a group of inner clamping blocks 6 for clamping the inner side of a flange part, which are uniformly distributed along the circumferential direction of the turntable 1, and the inner clamping blocks 6 and the positioning bolts 5 are staggered with each other; the clamping jaw 4 is provided with a support 7 and a group of outer clamping blocks 8 used for clamping the outer side of the rim, an elastic clamping plate 9 which is arranged in an arc shape is arranged between the outer clamping blocks 8, and a compression spring 10 is connected between two sides of the elastic clamping plate 9 and the middle of the clamping jaw 4; the backup pad 2 has radially offered a plurality of groups of locating screw holes 11 that supply positioning bolt 5 to install along carousel 1, and alarm 12 is installed to carousel 1, and pressure sensor 13 is all installed to interior clamp splice 6 and elastic clamping plate 9, and pressure sensor 13 electrical signal connection has external control ware, and carousel 1 installs the first driving piece 14 and the second driving piece 15 that drive support 7, interior clamp splice 6 radially slide along carousel 1 respectively, and alarm 12, first driving piece 14, second driving piece 15 all are connected with external control ware output electrical signal.
As can be seen from the above description, when the brake drum to be machined needs to be positioned and clamped, firstly, through a group of positioning bolts 5 uniformly distributed along the circumferential direction of the turntable 1, the positioning bolts 5 sequentially penetrate through corresponding threaded holes and mounting holes of the flange part of the brake drum to be machined, so as to perform the function of primarily positioning the brake drum, and meanwhile, through a plurality of groups of positioning threaded holes 11, when the brake drums with different inner diameters need to be positioned, only the positioning bolts 5 need to be placed in the holes of the corresponding diameter positioning threaded holes 11, so that the function of being applicable to positioning the brake drums with different diameters is performed, and the functions of improving the machining precision and expanding the application range are realized; then, the second driving piece 15 is started through the second driving piece 15, the inner clamping blocks 6 and the pressure sensors 13 of the inner clamping blocks 6, the second driving piece 15 drives the inner clamping blocks 6 to move outwards along the radial direction of the turntable 1 until all the inner clamping blocks 6 are propped against the inner side of the flange part of the brake drum, at the moment, the pressure sensors 13 of the inner clamping blocks 6 detect that the pressure reaches a preset range value, the pressure sensors 13 of the inner clamping blocks 6 detect that a pressure signal is sent to an external controller, and the external controller controls the second driving piece 15 to stop working so as to play a role in secondarily positioning and clamping the brake drum;
then, the first driving piece 14 is started through the first driving piece 14, the clamping jaw 4, the elastic clamping plate 9 and the pressure sensor 13 of the elastic clamping plate 9, the first driving piece 14 drives the clamping jaw 4 to move inwards along the radial direction of the turntable 1 until all the elastic clamping plates 9 are propped against the outer side of the rim part of the brake drum, at the moment, the pressure sensor 13 of the elastic clamping plate 9 detects that the pressure reaches a preset range value, the pressure sensor 13 of the elastic clamping plate 9 detects that a pressure signal is sent to an external controller, and the external controller controls the first driving piece 14 to stop so as to play a role in secondarily clamping the brake drum; the outer clamping blocks 8 and the compression springs 10 are arranged in an arc shape, and the elastic clamping plates 9 are combined in a point-surface and surface-surface clamping contact mode, so that the clamping force on the outer side of the brake drum is enhanced, the elastic clamping plates 9 are ensured to be in full contact with the outer side surfaces of the brake drum with different outer diameters under the elastic action of the compression springs 10, the center point deviation of the brake drum is avoided, and the effects of further improving the clamping force, ensuring the machining precision and expanding the application range are achieved;
in addition, when the brake drum is primarily positioned and offset due to the fact that the diameter of the mounting hole of the flange part is large or the left positioning bolt 5 does not penetrate through the mounting hole of the flange part of the brake drum, and the brake drum is not found, the external controller only receives pressure signals received by part of the elastic clamping plates 9 and part of the inner clamping blocks 6 at the moment through the alarm 12 and the pressure sensor 13, and the external controller controls the alarm 12 to alarm, so that the brake drum offset is automatically reminded and the subsequent machining precision is ensured; after the staff hears the alarm sound, the reset button of the external controller is manually pressed, the brake drum is readjusted after the first driving piece 14 and the second driving piece 15 are reset, and then the previous positioning and clamping steps are repeated, so that the time is not required to manually observe whether the deviation exists, and the problems of low machining precision and low machining efficiency caused by human eye errors are avoided.
Further: the elastic clamping plate 9 comprises a fixed clamping plate 16 and an elastic pad 17 which are all in arc-shaped arrangement, wherein the middle part of one side of the elastic pad 17 is fixedly connected with the middle part of one side of the fixed clamping plate 16, the middle part of the clamping jaw 4 is detachably connected with a connecting plate 18 which is in inverted T-shaped arrangement, two ends of the elastic pad 17 are connected with the transverse ends of the connecting plate 18 through compression springs 10, the other side of the fixed clamping plate 16 is fixedly connected with the vertical end of the connecting plate 18, and the other side of the elastic pad 17 is provided with anti-skid patterns 19.
As can be seen from the above description, by fixing the clamping plate 16 and the connecting plate 18, when the elastic clamping plate 9 needs to be replaced, the connecting plate 18 can be replaced only by detaching from the claw 4, and the function of detachable connection of the elastic pad 17 and the claw 4 is achieved; the anti-skid patterns 19 are formed on the other side of the elastic pad 17, so that the friction force between the surface of the elastic pad 17 and the brake drum is enhanced, and the clamping force is further improved; the elastic pad 17 is prevented from sliding to influence the subsequent processing precision and processing efficiency of the brake drum, so that the effect of further improving the processing precision and the processing efficiency is realized.
Further: the first driving piece 14 is a first electric cylinder, the first electric cylinder is arranged on the side face of the rotary table 1, the first sliding block 20 is arranged at the bottom of the support 7, the rotary table 1 is provided with a first sliding groove 21 for the first sliding block 20 to slide along the radial direction of the rotary table 1, and a push rod of the first electric cylinder is fixedly connected with one side of the first sliding block 20.
As can be seen from the above description, when the second driving member 15 drives all the inner clamping blocks 6 to abut against the inner side of the flange portion of the brake drum, the first electric cylinder is started, the ejector rod of the first electric cylinder is extended, the support 7 moves in a radial direction towards the center of the turntable 1 in the first chute 21 on the turntable 1 through the first sliding block 20, and drives the claw 4, the outer clamping blocks 8 and the elastic clamping plates 9 to move together in a radial direction towards the center of the turntable 1 until the outer clamping blocks 8 and the elastic clamping plates 9 abut against the outer side of the brake drum, so as to realize the function of automatically clamping the outer sides of the brake drums with different diameters; meanwhile, the influence on the follow-up clamping accuracy due to the fact that the support 7 is offset in the moving process is avoided, the follow-up processing accuracy of the brake drum is influenced, and the effect of further improving the overall processing accuracy is achieved.
Further: the second driving piece 15 is a second electric cylinder, the second electric cylinder is arranged at the center of the upper end of the turntable 1, a second sliding block 22 is arranged at the bottom of the inner clamping block 6, a second sliding groove 23 for the second sliding block 22 to slide along the radial direction of the turntable 1 is formed in the supporting plate 2, a connecting rod 24 is hinged between the bottom of the second sliding block 22 and the ejector rod of the second electric cylinder, and the turntable 1 and the second sliding groove 23 are provided with a yielding guide hole 25 for the connecting rod 24 to pass through.
As can be seen from the above description, after the brake drum is initially positioned, the second electric cylinder is started, the ejector rod of the second electric cylinder is extended, the connecting rod 24 rotates to drive the second sliding block 22 to move radially outwards in the second sliding groove 23 on the supporting plate 2, so as to drive the inner clamping blocks 6 to move radially outwards until all the inner clamping blocks 6 are abutted against the inner sides of the flange parts of the brake drum, thereby realizing the function of automatically clamping the inner sides of the brake drums with different diameters; meanwhile, the influence on the accuracy of clamping the inner side of the brake drum due to the fact that the inner clamping block 6 is offset in the moving process is avoided, the subsequent processing accuracy of the brake drum is influenced, and the effect of further improving the overall processing accuracy is achieved.
Further: the clamping jaw 4 is slidably connected to one side of the vertical end of the supporting seat 30 along the thickness of the clamping jaw 4, the height adjusting assembly 26 comprises an adjusting bolt 27, a first bearing seat 28 and a second bearing seat 29, the first bearing seat 28 and the second bearing seat 29 are respectively arranged on one side of the vertical end of the supporting seat 30 from top to bottom, one end of the adjusting bolt 27 is connected with the first bearing seat 28, one end of the adjusting bolt 27 is fixedly connected with a handle 31, and the upper end of the clamping jaw 4 is provided with an adjusting threaded hole 32; the other end of the adjusting bolt 27 passes through the adjusting screw hole 32 and is connected with the second bearing 29.
From the above description, when the height of the brake drum to be processed is higher or lower, through the adjusting bolt 27, the first bearing seat 28, the second bearing seat 29, the adjusting threaded hole 32, the supporting seat 30 and the handle 31, the handle 31 is manually rotated to drive the adjusting bolt 27 to rotate, thereby driving the claw 4 to move upwards or downwards until the claw 4 is adjusted to the position to be clamped, the effect that the heights of the claw 4, the outer clamping block 8 and the elastic clamping plate 9 relative to the turntable 1 can be adjusted can be realized, and the brake drum clamping device can be suitable for brake drums with different heights without changing and adjusting other brake drum clamping devices, thereby playing the role of further expanding the application range.
Further: the first bearing seat 28, the second bearing seat 29 and the clamping jaw 4 are all located above the transverse end of the support seat 30, and the transverse end of the support seat 30 is detachably provided with a limiting support block 33 for supporting the transition part of the brake drum.
As is apparent from the above description, the transition portion of the limiting support block 33 is used for supporting the brake drum, so as to enhance the supporting force on the brake drum, and at the same time, prevent the brake drum from shaking and shifting due to larger mass during the rotation process, thereby further improving the subsequent processing precision and increasing the supporting force on the brake drum.
Further: the limit supporting block 33 is sleeved with an anti-slip pad 34.
As is clear from the above description, by sleeving the anti-slip pad 34 on the limit support block 33, the friction force between the limit support block 33 and the transition portion of the brake drum is increased, so as to further avoid the sway and the offset of the transition portion of the brake drum, and further improve the subsequent processing precision and further increase the supporting force on the brake drum.
Further: a plurality of first scale groove groups 35 and a plurality of second scale groove groups 36 are distributed on the supporting plate 2 along the periphery Xiang Junyun of the turntable 1, the first scale groove groups 35 are positioned on one side of the positioning threaded holes 11, and the second scale groove groups 36 are positioned on one side of the inner clamping blocks 6.
As can be seen from the above description, when the brake drums with different diameters need to be positioned and clamped by the plurality of first scale groove groups 35, according to the values of the flange mounting holes of the brake drums, the positioning threaded holes 11 at the first scale groove groups 35 with corresponding values can be quickly found, and the positioning bolts 5 are mounted in the positioning threaded holes 11, so that compared with the conventional manual eye observation, the processing time and the positioning precision are greatly shortened, and the overall processing efficiency and the processing precision are improved; through a plurality of second scale groove group 36, when needs are to the brake drum location clamp of different diameters, according to the flange portion internal diameter numerical value of brake drum, can install the brake drum to corresponding second scale groove group 36 department fast, avoid placing the in-process skew of brake drum, play the effect of further improving holistic machining precision.
Further: the outer peripheral surface of the rotary table 1 is sleeved with a protective cover for placing scraps to splash, and the clamping and positioning mechanism, the first driving piece 14 and the second driving piece 15 are all positioned on the protective cover.
From the above description, during the working process of the brake drum by the staff, the protection cover is used for avoiding the damage to the staff caused by the scraps generated by polishing, thereby playing a role in improving the use safety of the device.
Referring to fig. 2 to 8, the present utility model provides embodiments of:
the positioning and clamping device for processing the brake drum comprises a turntable 1, a clamping and positioning mechanism, a supporting plate 2 and a first motor 3, wherein the supporting plate 2 is arranged on the center of the turntable 1, and the first motor 3 drives the turntable 1 to rotate automatically; the outer peripheral surface of the rotary table 1 is sleeved with a protective cover (not shown in the figure and the whole text is the same as the figure) for placing the scraps to splash, and the clamping and positioning mechanism is positioned in the protective cover.
As shown in fig. 3 and 4, the clamping and positioning mechanism comprises a group of clamping claws 4, a group of positioning bolts 5 and a group of inner clamping blocks 6 for clamping the inner side of the flange part, wherein the clamping claws 4, the positioning bolts 5 and the inner clamping blocks 6 are uniformly distributed along the circumferential direction of the turntable 1, and the inner clamping blocks 6 and the positioning bolts 5 are staggered;
as shown in fig. 3 and 4, the claw 4 is provided with a support 7 and a group of outer clamping blocks 8 used for clamping the outer side of the rim, an elastic clamping plate 9 arranged in an arc shape is arranged between the outer clamping blocks 8, and compression springs 10 are connected between the two sides of the elastic clamping plate 9 and the middle of the claw 4; the turntable 1 is provided with a first driving piece 14 for driving the support 7 to slide along the radial direction of the turntable 1; a supporting seat 30 arranged in an L shape is arranged on one side of the support 7, and the clamping claw 4 is connected to one side of the vertical end of the supporting seat 30 in a sliding manner along the thickness of the supporting seat;
as shown in fig. 4 and 5, the supporting plate 2 is provided with a plurality of groups of positioning threaded holes 11 for installing the positioning bolts 5 along the radial direction of the turntable 1, and the turntable 1 is provided with a second driving piece 15 for driving the inner clamping blocks 6 to slide along the radial direction of the turntable 1; a plurality of groups of first scale groove groups 35 and a plurality of groups of second scale groove groups 36 are distributed on the support plate 2 along the periphery Xiang Junyun of the turntable 1, the first scale groove groups 35 are positioned on one side of the positioning threaded holes 11, and the second scale groove groups 36 are positioned on one side of the inner clamping blocks 6;
as shown in fig. 5 and 6, the inner clamping block 6 and the elastic clamping plate 9 are both provided with a pressure sensor 13, the pressure sensor 13 is electrically connected with an external controller (not shown in the figure, as the whole text is the same), the turntable 1 is provided with an alarm 12, and the alarm 12, the first driving piece 14 and the second driving piece 15 are all electrically connected with the output end of the external controller; the first driving member 14 and the second driving member 15 are both located within the shield.
As shown in fig. 5 and 6, the first driving member 14 is a first electric cylinder, the first electric cylinder is mounted on the side surface of the turntable 1, the bottom of the support 7 is provided with a first sliding block 20, the turntable 1 is provided with a first sliding groove 21 for the first sliding block 20 to slide along the radial direction of the turntable 1, and a top rod of the first electric cylinder is fixedly connected with one side of the first sliding block 20; the second driving piece 15 is a second electric cylinder, the second electric cylinder is arranged at the center of the upper end of the turntable 1, a second sliding block 22 is arranged at the bottom of the inner clamping block 6, a second sliding groove 23 for the second sliding block 22 to slide along the radial direction of the turntable 1 is formed in the supporting plate 2, a connecting rod 24 is hinged between the bottom of the second sliding block 22 and the ejector rod of the second electric cylinder, and the turntable 1 and the second sliding groove 23 are provided with a yielding guide hole 25 for the connecting rod 24 to pass through.
As shown in fig. 2 and 6, the elastic clamping plate 9 includes a fixing clamping plate 16 and an elastic pad 17, which are all arc-shaped, the middle part of one side of the elastic pad 17 is fixedly connected with the middle part of one side of the fixing clamping plate 16, the middle part of the clamping jaw 4 is detachably connected with a connecting plate 18 which is in inverted T-shaped arrangement, two ends of the elastic pad 17 are connected with the transverse ends of the connecting plate 18 through compression springs 10, the other side of the fixing clamping plate 16 is fixedly connected with the vertical end of the connecting plate 18, and the other side of the elastic pad 17 is provided with anti-skid patterns 19.
As shown in fig. 4 and 5, the height adjusting assembly 26 for adjusting the height of the claw 4 is further included, the height adjusting assembly 26 comprises an adjusting bolt 27, a first bearing seat 28 and a second bearing seat 29, the first bearing seat 28 and the second bearing seat 29 are respectively installed on one side of the vertical end of the supporting seat 30 from top to bottom, one end of the adjusting bolt 27 is connected with the first bearing seat 28, one end of the adjusting bolt 27 is fixedly connected with a handle 31, and the upper end of the claw 4 is provided with an adjusting threaded hole 32; the other end of the adjusting bolt 27 passes through the adjusting screw hole 32 and is connected with the second bearing 29.
As shown in fig. 7 and 8, the first bearing seat 28, the second bearing seat 29 and the claw 4 are all located above the lateral end of the support seat 30, and the lateral end of the support seat 30 is detachably provided with a limit support block 33 for supporting the brake drum transition part; the limit supporting block 33 is sleeved with an anti-slip pad 34.
In conclusion, compared with the prior art, the utility model has the advantages of high processing precision, wide application range and high processing efficiency; the brake drums with different inner diameters are positioned through the matching of a group of positioning bolts 5 and a plurality of groups of positioning threaded holes 11 with the mounting holes of the flange parts of the brake drums, so that the functions of preliminary positioning of the brake drums, improvement of processing precision and expansion of application range are achieved; the first driving piece 14, the clamping jaw 4, the elastic clamping plate 9, the second driving piece 15, the inner clamping block 6 and the pressure sensor 13 are used for automatically clamping the inner side and the outer side of the brake drum method, so that the brake drum can be repositioned and clamped; the outer clamping blocks 8 and the compression springs 10 are adopted, the elastic clamping plates 9 are arranged in an arc shape, and the two clamping contact modes of point-surface and surface-surface are combined with each other, so that the clamping force on the brake drum is enhanced, the elastic clamping plates 9 are ensured to be in comprehensive contact with the outer side surfaces of the brake drums with different outer diameters, and the effects of further improving the processing precision and expanding the application range are achieved; through siren 12 and pressure sensor 13, play the automatic warning of brake drum skew and guarantee the effect of follow-up machining precision.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (9)
1. The utility model provides a brake drum processing is with location clamping device which characterized in that: the clamping and positioning mechanism comprises a group of clamping claws, a group of positioning bolts and a group of inner clamping blocks used for clamping the inner side of the flange part, wherein the clamping and positioning claws, the group of positioning bolts and the group of inner clamping blocks used for clamping the inner side of the flange part are uniformly distributed along the circumferential direction of the turntable, and the inner clamping blocks and the positioning bolts are staggered; the clamping jaw is provided with a support and a group of outer clamping blocks used for clamping the outer side of the rim part, an elastic clamping plate arranged in an arc shape is arranged between the outer clamping blocks, and compression springs are connected between the two sides of the elastic clamping plate and the middle part of the clamping jaw; the support plate is radially provided with a plurality of groups of positioning threaded holes for positioning bolt installation along the turntable, the turntable is provided with an alarm, the inner clamping blocks and the elastic clamping plates are all provided with pressure sensors, the pressure sensors are electrically connected with an external controller, the turntable is provided with a first driving piece and a second driving piece which respectively drive the support and the inner clamping blocks to slide along the radial direction of the turntable, and the alarm, the first driving piece and the second driving piece are electrically connected with the output end of the external controller.
2. A positioning and clamping device for brake drum processing according to claim 1, wherein: the elastic clamping plate comprises a fixed clamping plate and an elastic pad, wherein the fixed clamping plate and the elastic pad are both in arc-shaped arrangement, the middle part of one side of the elastic pad is fixedly connected with the middle part of one side of the fixed clamping plate, the middle part of the clamping jaw is detachably connected with a connecting plate which is in an inverted T-shaped arrangement, two ends of the elastic pad are connected with the transverse ends of the connecting plate through compression springs, the other side of the fixed clamping plate is fixedly connected with the vertical end of the connecting plate, and the other side of the elastic pad is provided with anti-skid patterns.
3. A positioning and clamping device for brake drum processing according to claim 1, wherein: the first driving piece is a first electric cylinder, the first electric cylinder is arranged on the side face of the rotary table, a first sliding block is arranged at the bottom of the support, the rotary table is provided with a first sliding groove for the first sliding block to slide along the radial direction of the rotary table, and a push rod of the first electric cylinder is fixedly connected with one side of the first sliding block.
4. A positioning and clamping device for brake drum processing according to claim 1, wherein: the second driving piece is a second electric cylinder, the second electric cylinder is arranged at the center of the upper end of the rotary table, a second sliding block is arranged at the bottom of the inner clamping block, a second sliding groove for the second sliding block to slide along the radial direction of the rotary table is formed in the supporting plate, a connecting rod is hinged between the bottom of the second sliding block and a top rod of the second electric cylinder, and the rotary table and the second sliding groove are provided with yielding guide holes for the connecting rod to pass through.
5. A positioning and clamping device for brake drum processing according to claim 1, wherein: the clamping jaw is slidably connected to one side of the vertical end of the supporting seat along the thickness of the clamping jaw, the height adjusting assembly comprises an adjusting bolt, a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are respectively arranged on one side of the vertical end of the supporting seat from top to bottom, one end of the adjusting bolt is connected with the first bearing seat, one end of the adjusting bolt is fixedly connected with a handle, and the upper end of the clamping jaw is provided with an adjusting threaded hole; the other end of the adjusting bolt penetrates through the adjusting threaded hole and is connected with the second bearing seat.
6. A positioning and clamping device for brake drum machining according to claim 5, wherein: the first bearing seat, the second bearing seat and the clamping jaw are all positioned above the transverse end of the supporting seat, and the transverse end of the supporting seat is detachably provided with a limiting supporting block for supporting the transition part of the brake drum.
7. A positioning and clamping device for brake drum machining according to claim 6, wherein: and the limit supporting block is sleeved with an anti-slip pad.
8. A positioning and clamping device for brake drum processing according to claim 1, wherein: a plurality of first scale groove groups and a plurality of second scale groove groups are uniformly distributed on the supporting plate along the circumference of the rotary table, the first scale groove groups are positioned on one side of the positioning threaded holes, and the second scale groove groups are positioned on one side of the inner clamping blocks.
9. A positioning and clamping device for brake drum processing according to claim 1, wherein: the outer peripheral surface of the rotary table is sleeved with a protective cover for placing scraps to splash, and the clamping and positioning mechanism, the first driving piece and the second driving piece are both positioned on the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320563835.2U CN219684649U (en) | 2023-03-21 | 2023-03-21 | Positioning and clamping device for brake drum machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320563835.2U CN219684649U (en) | 2023-03-21 | 2023-03-21 | Positioning and clamping device for brake drum machining |
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| Publication Number | Publication Date |
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| CN219684649U true CN219684649U (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320563835.2U Active CN219684649U (en) | 2023-03-21 | 2023-03-21 | Positioning and clamping device for brake drum machining |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086667A (en) * | 2023-10-20 | 2023-11-21 | 西安大鹏航空科技有限公司 | Clamping device for machining aviation thin-wall part |
| CN118123073A (en) * | 2024-05-08 | 2024-06-04 | 江苏鼎宝华电子有限公司 | Drilling device convenient for clamping hardware |
-
2023
- 2023-03-21 CN CN202320563835.2U patent/CN219684649U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086667A (en) * | 2023-10-20 | 2023-11-21 | 西安大鹏航空科技有限公司 | Clamping device for machining aviation thin-wall part |
| CN117086667B (en) * | 2023-10-20 | 2024-02-27 | 西安大鹏航空科技有限公司 | Clamping device for machining aviation thin-wall part |
| CN118123073A (en) * | 2024-05-08 | 2024-06-04 | 江苏鼎宝华电子有限公司 | Drilling device convenient for clamping hardware |
| CN118123073B (en) * | 2024-05-08 | 2024-08-30 | 江苏鼎宝华电子有限公司 | Drilling device convenient for clamping hardware |
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