CN213053797U - Clamp for machining of middle box type parts of tractor - Google Patents
Clamp for machining of middle box type parts of tractor Download PDFInfo
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- CN213053797U CN213053797U CN202022056616.4U CN202022056616U CN213053797U CN 213053797 U CN213053797 U CN 213053797U CN 202022056616 U CN202022056616 U CN 202022056616U CN 213053797 U CN213053797 U CN 213053797U
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Abstract
The utility model discloses a clamp for processing tractor middle box type parts, wherein the parts comprise a front box part and a rear box part, and the clamp comprises an upper supporting plate, a lower supporting plate and a plurality of vertical plates; the upper supporting plate is provided with a first positioning pin and a second positioning pin for positioning the part, the upper supporting plate is in a T shape and comprises a transverse part and a vertical part, a plurality of pairs of positioning blocks are symmetrically arranged on the upper end surface of the upper supporting plate by taking the axis of the vertical part as the center, and the part can be fixed on the clamp by using screws to sequentially penetrate through the upper supporting plate and the positioning blocks and be in threaded connection with threaded holes in the bottom of the rear box part; the upper supporting plate is symmetrically provided with a pair of lateral pressing mechanisms for laterally positioning the parts, and the lower supporting plate is provided with floating supporting nails capable of supporting the front box part. The clamp is simple in structure and convenient to use, can effectively avoid the overproof of box holes and hole systems caused by clamping deformation of the pressing plate, and reduces the problem of unqualified machining quality of box parts caused by pressing deformation.
Description
Technical Field
The utility model relates to a tractor box class part machining field, specific box class anchor clamps for parts machining in tractor that says so.
Background
Tractor middle box parts (such as gearbox box, rear axle shell and transmission box) generally refer to parts which are provided with more than one hole system, have a certain cavity or cavity inside and have a certain proportion in the length direction, the width direction and the height direction. In the finish machining process of box parts, a machining center is generally used, and finish machining of the plane and all hole systems of the box is completed by one-time clamping.
The manufacturing accuracy requirement of box class part is very high, and the anchor clamps that use in traditional processing generally adopt the mode that one side two round pins location, clamp plate compress tightly, and this kind of anchor clamps simple structure, convenient to use nevertheless have following problem: when the clamp plate compresses tightly, the packing force is great to the hole system geometric tolerances influence on box part surface, if: two positioning pin holes with 436mm distance have the position tolerance of phi 0.06, and the traditional pressing plate fixture has the out-of-tolerance of 0.02-0.04mm caused by pressing force deformation in the processing process; in addition, the pore diameters with larger diameters are deformed due to pressing force, and the roundness error of the pore diameter is within the range of 0.01-0.03mm, so that the problem of the size of the pore diameter is out of tolerance.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies in the prior art, the utility model provides a tractor middle box class anchor clamps for parts machining, this anchor clamps simple structure, convenient to use, can effectively avoid the clamp plate to press from both sides the overproof that tight deformation caused to box hole and hole system, reduce because of compressing tightly the unqualified problem of box class parts machining quality that deformation caused.
In order to achieve the above object, the utility model discloses a concrete scheme does:
a clamp for machining parts of a middle box body of a tractor comprises a front box part and a rear box part, and comprises an upper supporting plate, a lower supporting plate and a plurality of vertical plates for connecting the upper supporting plate and the supporting plate;
the upper supporting plate is provided with a first positioning pin and a second positioning pin which are used for positioning parts, the upper supporting plate is T-shaped and comprises a transverse part and a vertical part, a plurality of pairs of positioning blocks are symmetrically arranged on the upper end surface of the upper supporting plate by taking the axis of the vertical part as the center, and the parts can be fixed on the clamp by using screws to sequentially penetrate through the upper supporting plate and the positioning blocks and being in threaded connection with threaded holes in the bottom of the rear box part; a pair of lateral pressing mechanisms are symmetrically arranged on the transverse part of the upper supporting plate, and the two lateral pressing mechanisms can be respectively matched with through holes on the left lateral wall and the right lateral wall of the rear box part to provide lateral pressing for the parts;
the lower supporting plate is provided with a floating supporting nail which can support the front box part extending to the outside of the upper supporting plate.
Further, the bottom suspension fagging is including the first supporting part that is arranged in setting up the support nail that floats, still including locating the second supporting part under the backup pad, the one end that the backup pad was kept away from to second supporting part and polylith riser is connected, and the length direction integrated into one piece of vertical portion in first supporting part and the second supporting part edge last backup pad.
Further, lateral part hold-down mechanism includes clamp plate, bracing piece, bolt and nut, the clamp plate is the notch cuttype, including first horizontal part, second horizontal part and vertical portion, is equipped with the bar groove on the first horizontal part, the bolt passes in proper order and cooperates so that clamp plate and last backup pad are fixed together with the nut after last backup pad and bar groove, and the second horizontal part can cooperate with the rectangle through-hole on the lateral wall of back case portion, locates bracing piece and the first horizontal part sliding connection of first horizontal part below, the one end that first horizontal part was kept away from to the bracing piece is fixed in the backup pad.
Further, a plurality of pairs of positioning blocks are arranged on the vertical portion at equal intervals along the length direction of the vertical portion.
Furthermore, a pair of supporting blocks which are as high as the positioning blocks and used for supporting the end part of the rear box part are arranged on the transverse part of the upper supporting plate, and the two supporting blocks are arranged between the first positioning pin and the side part pressing mechanism.
Furthermore, the first positioning pin is a cylindrical pin and is matched with a first pin hole at the rear end of the rear box part.
Furthermore, the second positioning pin is a diamond pin, and the second positioning pin is matched with a second pin hole in the front end of the rear box part.
Further, the number of the floating support pins is two.
Has the advantages that:
1. the clamp in the utility model adopts the mode of supporting the front box part and clamping the rear box part to work, wherein, the upper supporting plate is provided with two positioning pins matched with the pin holes on the box parts, a fastener in threaded connection with the bottom of the rear box part and a lateral part pressing mechanism for laterally positioning the rear box part, and all parts are mutually matched to clamp the rear box part; the lower supporting plate is provided with a floating supporting nail which can support the front box part extending to the outside of the upper supporting plate, so that the whole clamp can effectively clamp and position box parts.
2. The utility model provides an anchor clamps simple structure, convenient to use, avoided effectively among the prior art because of using the clamp plate part deformation problem that causes to the problem of aperture circularity error and pinhole position degree discrepancy has been eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a front view of the clamp of the present invention;
fig. 2 is a left side view of the clamp of the present invention;
figure 3 is a top view of the clamp of the present invention;
FIG. 4 is a schematic view of the overall structure of the clamp of the present invention;
fig. 5 is a diagram of the use state of the clamp of the present invention.
Reference numerals: 1. side hold-down mechanism, 101, clamp plate, 102, nut, 103, bolt, 104, bracing piece, 2, go up the backup pad, 201, horizontal portion, 202, vertical portion, 3, unsteady supporting pin, 4, bottom suspension fagging, 401, second supporting part, 402, first supporting part, 5, locating piece, 6, second locating pin, 7, screw, 8, riser, 9, first locating pin, 10, part, 1001, back case portion, 1002, front box portion, 11, supporting shoe.
Detailed Description
In the description of the present invention, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 4, which are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides a box class anchor clamps for parts machining in tractor, this anchor clamps belong to drop-down formula anchor clamps, use when being fit for equipment processing box class parts such as horizontal machining center or horizontal boring and boring machine.
It should be noted that the box parts in the present invention refer to the transmission box, the rear axle housing and the transmission box.
Referring to fig. 1-4, a part 10 comprises a front box portion 1002 and a rear box portion 1001, and the clamp comprises an upper support plate 2, a lower support plate 4 and a plurality of vertical plates 8 for connecting the upper support plate 2 and the support plate 4; the upper supporting plate 2 is provided with a first positioning pin 9 and a second positioning pin 6 which are used for positioning a part 10, the upper supporting plate 2 is T-shaped and comprises a transverse part 201 and a vertical part 202, a plurality of pairs of positioning blocks 5 are symmetrically arranged on the upper end surface of the upper supporting plate 2 by taking the axis of the vertical part 202 as the center, and the part 10 can be fixed on the clamp by using screws 7 to sequentially penetrate through the upper supporting plate 2 and the positioning blocks 5 and be in threaded connection with threaded holes in the bottom of the rear box part 1001; a pair of lateral pressing mechanisms 1 are symmetrically arranged on the transverse part 201 of the upper supporting plate 2, and the two lateral pressing mechanisms 1 can be respectively matched with through holes on the left and right lateral walls of the rear box part 1001 to provide lateral pressing for the part 10; the lower support plate 4 is provided with a floating support nail 3 which can support a front box part 1002 extending to the outside of the upper support plate 2.
In detail, the lower support plate 4 includes a second support portion 401 disposed under the upper support plate 2, in addition to a first support portion 402 for disposing the floating support pin 3, the second support portion 401 is connected to one end of the multi-block riser 8 away from the upper support plate 2, and the first support portion 402 and the second support portion 401 are integrally formed along the length direction of the vertical portion 202 of the upper support plate 2.
It should be noted that, lateral part hold-down mechanism 1 includes clamp plate 101, bracing piece 104, bolt 103 and nut 102, clamp plate 1 is the notch cuttype, including first horizontal part, second horizontal part and vertical portion, locates bracing piece 104 and first horizontal part sliding connection below the first horizontal part, on the one end that first horizontal part was kept away from to bracing piece 104 was fixed in backup pad 2, was equipped with the bar groove on the first horizontal part, bolt 103 passed in proper order behind backup pad 2 and the bar groove with nut 102 cooperation so that clamp plate 101 and last backup pad 2 are fixed together, the second horizontal part can cooperate with the rectangle through-hole on the lateral wall of back case portion 1001, and the in-process of moving clamp plate 101 about, clamp plate 101 is controlled about for bracing piece 104, treat to move clamp plate 101 to suitable position after, screw up nut 102 can.
Specifically, a plurality of pairs of positioning blocks 5 are provided on the vertical portion 202 at equal intervals in the longitudinal direction of the vertical portion 202. A pair of supporting blocks 11 which are as high as the positioning blocks 5 and are used for supporting the end part of the rear box part 1001 are arranged on the transverse part 201 of the upper supporting plate 2, and the two supporting blocks 11 are arranged between the first positioning pin 9 and the side pressing mechanism 1.
The first positioning pin 9 is a cylindrical pin, and the first positioning pin 9 is matched with a first pin hole at the rear end of the rear box part 1001. The second positioning pin 6 is a diamond pin, and the second positioning pin 6 is matched with a second pin hole at the front end of the rear box part 1001.
The number of the floating support pins 3 is two.
The utility model discloses well anchor clamps's application method: (1) hoisting the part 10 by using a hoisting tool, and keeping a positioning surface of the part 10 and a positioning surface of the clamp in parallel from above the clamp; simultaneously, aligning a first pin hole and a second pin hole on the part 10 with the cylindrical pin and the diamond pin respectively, then slowly dropping the part 10 from top to bottom until the positioning surface of the part 10 is tightly attached to the positioning block 5, and matching the two pin holes on the part 10 with the cylindrical pin and the diamond pin respectively to realize the positioning of the part 10; (2) the screws 7 respectively penetrate through the through holes in the supporting plate 2 and the positioning block 5 from the lower part of the supporting plate 2 and then are matched with the threaded holes in the parts 10, and the screws 7 are screwed tightly by using a ratchet wrench; (3) after the pressing plate 101 is adjusted to a proper position left and right, the nut 102 is screwed to compress the part 10, and at the moment, the front box part 1002 of the part 10 is supported on the floating support nail 3 (please refer to fig. 5), namely, the clamping of the box type part is completed.
Through many times of tests verification, the utility model provides an anchor clamps convenient to use has avoided anchor clamps among the prior art effectively to easily cause the phenomenon that the part warp, has eliminated the problem that aperture circularity error and pinhole position degree are out of tolerance.
The foregoing is merely a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a tractor middle box class anchor clamps for parts machining, part (10) are including front box portion (1002) and back box portion (1001), its characterized in that: the clamp comprises an upper supporting plate (2), a lower supporting plate (4) and a plurality of vertical plates (8) for connecting the upper supporting plate (2) and the lower supporting plate (4);
the part fixing device is characterized in that a first positioning pin (9) and a second positioning pin (6) which are used for positioning a part (10) are arranged on the upper supporting plate (2), the upper supporting plate (2) is T-shaped and comprises a transverse part (201) and a vertical part (202), a plurality of pairs of positioning blocks (5) are symmetrically arranged on the upper end surface of the upper supporting plate (2) by taking the axis of the vertical part (202) as the center, and the part (10) can be fixed on the clamp by using screws (7) to sequentially penetrate through the upper supporting plate (2) and the positioning blocks (5) and being in threaded connection with threaded holes in the bottom of the rear box part (1001); a pair of lateral pressing mechanisms (1) is symmetrically arranged on the transverse part (201) of the upper supporting plate (2), and the two lateral pressing mechanisms (1) can be respectively matched with through holes on the left and right lateral walls of the rear box part (1001) to provide lateral pressing for the part (10);
the lower supporting plate (4) is provided with a floating supporting nail (3) which can support a front box part (1002) extending to the outside of the upper supporting plate (2).
2. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: lower backup pad (4) are including first supporting part (402) that are arranged in setting up unsteady supporting pin (3), still including second supporting part (401) of locating under backup pad (2), the one end of backup pad (2) is kept away from with polylith riser (8) in second supporting part (401) is connected, and the length direction integrated into one piece of vertical portion (202) in last backup pad (2) is followed in first supporting part (402) and second supporting part (401).
3. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: lateral part hold-down mechanism (1) is including clamp plate (101), bracing piece (104), bolt (103) and nut (102), clamp plate (101) are the notch cuttype, including first horizontal part, second horizontal part and vertical portion, is equipped with the bar groove on the first horizontal part, bolt (103) pass in proper order after backup pad (2) and the bar groove with nut (102) cooperation so that clamp plate (101) and last backup pad (2) are fixed together, the second horizontal part can cooperate with the rectangle through-hole 1001 on back case portion (lateral wall), locate bracing piece (104) and the first horizontal part sliding connection of first horizontal part below, the one end that first horizontal part was kept away from in bracing piece (104) is fixed in on backup pad (2).
4. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: the plurality of pairs of positioning blocks (5) are arranged on the vertical part (202) at equal intervals along the length direction of the vertical part (202).
5. The clamp for machining the tractor middle box part as claimed in claim 4, wherein: a pair of supporting blocks (11) which are as high as the positioning blocks (5) and used for supporting the end part of the rear box part (1001) are arranged on the transverse part (201) of the upper supporting plate (2), and the two supporting blocks (11) are arranged between the first positioning pin (9) and the side pressing mechanism (1).
6. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: the first positioning pin (9) is a cylindrical pin, and the first positioning pin (9) is matched with a first pin hole in the rear end of the rear box part (1001).
7. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: the second positioning pin (6) is a diamond-shaped pin, and the second positioning pin (6) is matched with a second pin hole in the front end of the rear box part (1001).
8. The clamp for machining the tractor middle box part as claimed in claim 1, wherein: the number of the floating supporting nails (3) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056616.4U CN213053797U (en) | 2020-09-18 | 2020-09-18 | Clamp for machining of middle box type parts of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056616.4U CN213053797U (en) | 2020-09-18 | 2020-09-18 | Clamp for machining of middle box type parts of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213053797U true CN213053797U (en) | 2021-04-27 |
Family
ID=75559043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022056616.4U Active CN213053797U (en) | 2020-09-18 | 2020-09-18 | Clamp for machining of middle box type parts of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213053797U (en) |
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2020
- 2020-09-18 CN CN202022056616.4U patent/CN213053797U/en active Active
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