CN213688257U - Positioning and clamping device for measuring tapered roller bearing engineering plastic retainer - Google Patents
Positioning and clamping device for measuring tapered roller bearing engineering plastic retainer Download PDFInfo
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- CN213688257U CN213688257U CN202022530442.0U CN202022530442U CN213688257U CN 213688257 U CN213688257 U CN 213688257U CN 202022530442 U CN202022530442 U CN 202022530442U CN 213688257 U CN213688257 U CN 213688257U
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Abstract
The utility model relates to a tapered roller bearing engineering plastics holder is measured and is used positioning and clamping device, include: the supporting piece is provided with a central through hole and is used for enabling the measuring base of the three-coordinate measuring machine to enter a measuring space after rotating for 90 degrees, and the small end of the retainer is downwards inserted into the central through hole of the supporting piece so as to support the retainer on the supporting piece; the positioning blocks are circumferentially arranged on the support piece and are used for being attached to the outer side face of the retainer; the orientation blocks are arranged above each positioning block and are used for being attached to the window beams or the window holes of the retainer; and at least one pressing mechanism is arranged on the support and is used for cooperating with the positioning block to position and clamp the retainer on the support. The utility model discloses can realize that the product pinpoints in three-coordinate measuring machine measurement space, presss from both sides tight suitable, loading and unloading convenience, avoids each item requirement such as measurement station.
Description
Technical Field
The utility model relates to a clamping device especially relates to a tapered roller bearing engineering plastics holder is measured and is used positioning and clamping device.
Background
At present, when the dimension of the engineering plastic retainer of the tapered roller bearing is measured on a three-coordinate measuring machine, an injection molding piece is easy to deform, so that the injection molding piece can cause product measurement errors due to overlarge stress in the clamping process. Meanwhile, the retainer is in a conical structure, and the number of the window holes is large, so that the placement position of the retainer on the platform of the measuring machine causes the limitation of the measuring space and the inaccurate repeated positioning caused by the incapability of limiting in the circumferential direction.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a simple structure, the economic tapered roller bearing engineering plastics holder that is suitable for is measured and is used positioning and clamping device, this positioning and clamping device can realize that the product is accurate in three-coordinate measuring machine measuring space to be fixed a position, press from both sides tightly suitable, loading and unloading are convenient, avoid each item requirement such as measurement station.
In order to achieve the purpose, the utility model adopts the following technical proposal: a tapered roller bearing engineering plastics holder is measured and is used location clamping device includes: the supporting piece is provided with a central through hole and is used for enabling the measuring base of the three-coordinate measuring machine to enter a measuring space after rotating for 90 degrees, and the small end of the retainer is downwards inserted into the central through hole of the supporting piece so as to support the retainer on the supporting piece; the positioning blocks are circumferentially arranged on the support piece and are used for being attached to the outer side face of the retainer; the orientation blocks are arranged above each positioning block and are used for being attached to the window beams or the window holes of the retainer; and at least one pressing mechanism is arranged on the support and is used for cooperating with the positioning block to position and clamp the retainer on the support.
Preferably, the top surface of the support piece is respectively provided with a plurality of stepped holes on two center circles, the top surface of the support piece is respectively provided with a plurality of square grooves and a plurality of T-shaped grooves along the radial direction, the bottom surface of the support piece corresponding to the square grooves is provided with at least one first threaded hole, the bottom surface of the support piece corresponding to the T-shaped grooves is provided with a second threaded hole, and the side surfaces of the support piece positioned at two sides of the T-shaped grooves are respectively provided with a third threaded hole.
Tapered roller bearing engineering plastics holder measure and use location clamping device, preferably, square groove and T type groove are two, two the square groove is followed support piece's radial is 90 contained angles, two T type groove is also followed support piece's radial is 90 contained angles, and relative one T type groove and one the square groove is located same central axis position.
The positioning and clamping device for measuring the tapered roller bearing engineering plastic retainer preferably further comprises a standard part mainly composed of a measuring flat plate and a support rod, one end of each of the support rods is connected with a stepped hole in the support part, and the other end of each of the support rods is connected with the measuring flat plate, so that the support part is horizontally fixed on the measuring flat plate.
The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing is characterized in that preferably, a boss structure is formed at the lower part of the positioning block and is used for being inserted into the square groove of the supporting piece, an end face counter bore is formed in the middle of the positioning block, and the end face counter bore of the positioning block is connected with a first threaded hole of the supporting piece through a screw; the upper portion of locating piece forms first V template structure, just the V type opening orientation of first V template structure support piece's the central axis for with the lateral surface contact of holder compresses tightly, fourth screw hole has been seted up on the first V template structure.
According to the positioning and clamping device for measuring the tapered roller bearing engineering plastic retainer, preferably, the first threaded holes in the supporting piece are arranged at intervals along the radial direction.
Preferably, the front side and the rear side of the orientation block are respectively provided with an orientation groove and an orientation boss, the width of the orientation groove is slightly larger than the width of a window beam of the retainer, and the width of the orientation boss is slightly smaller than the width of a window hole of the retainer; meanwhile, a through hole is formed in the orientation block, and the through hole of the orientation block is connected with a fourth threaded hole of the positioning block through a screw, so that the orientation block is fixed on the positioning block.
The positioning and clamping device for measuring the tapered roller bearing engineering plastic retainer preferably selects the orientation groove of the orientation block to face the central axis of the support when the window beam of the retainer is oriented, and selects the orientation boss of the orientation block to face the central axis of the support when the window hole of the retainer is oriented.
The positioning and clamping device for measuring the tapered roller bearing engineering plastic retainer preferably comprises: a T-shaped key structure is formed at the lower part of the pressing block and is in sliding fit with the T-shaped groove of the support piece, so that the pressing block can reciprocate on the T-shaped groove of the support piece along the radial direction, the position of the pressing block is limited by a screw matched with the second threaded hole, a second V-shaped plate structure is formed at the upper part of the pressing block, a V-shaped opening of the second V-shaped plate structure faces the central axis of the support piece and is used for being in contact with and pressing the outer side face of the retainer, and a side face counter bore is formed in the middle of the pressing block, located behind the V-shaped opening of the second V-shaped plate structure, along the radial direction; the pressing plate is fixed on the outer side surface of the support piece through a screw and the third threaded hole; and the spring is embedded in the side surface counter bore of the pressing block, is positioned between the pressing block and the pressing plate and is used for generating pressing force on the outer side surface of the retainer by the pressing block.
According to the positioning and clamping device for measuring the tapered roller bearing engineering plastic retainer, preferably, the angle of the V-shaped opening of the first V-shaped plate structure and the angle of the V-shaped opening of the second V-shaped plate structure are consistent with the angle of the outer side surface of the window beam of the retainer; meanwhile, rubber gaskets are respectively pasted on the end faces of the V-shaped openings of the first V-shaped plate structure and the second V-shaped plate structure.
The utility model discloses owing to take above technical scheme, it has following advantage: 1. the utility model provides a positioning and clamping device installs the back on three-coordinate measuring machine, according to the specification and size of the holder of surveying, adjusts the locating piece and presss from both sides tight piece position, chooses for use corresponding directional piece, avoids the misloading to adorn by mistake. Through the verification of multiple on-site actual measurements, the positioning and clamping device can meet various requirements of accurate repeated positioning, proper clamping force, reasonable measuring needle space and convenient assembly and disassembly of parts in a measuring space. 2. The utility model discloses an engineering plastics holder special fixture's application has compensatied general fixture repeated positioning inaccuracy and shortcoming such as the clamp plate packing force is too big, reduces the manual operation of finding back the coordinate system when starting automatic measurement procedure, has improved the measuring efficiency of product three-dimensional. 3. The utility model discloses on dispose two sets of locating pieces and press from both sides tight piece, can adjust the location clamping position according to the holder size, realize one set of anchor clamps of different model holders sharing.
Drawings
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic top view of the supporting member of the present invention;
fig. 3 is a schematic top view of the measuring plate for supporting of the present invention;
fig. 4 is a schematic structural diagram of the positioning block of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
fig. 6 is a schematic structural diagram of the orientation block of the present invention;
fig. 7 is a schematic structural view of the compressing block of the present invention;
FIG. 8 is a sectional view taken along line A-A of FIG. 7;
fig. 9 is a schematic view of a front view structure of the to-be-clamped engineering plastic retainer of the present invention;
FIG. 10 is a schematic top view of the window hole positioning process of the present invention;
fig. 11 is a schematic top view of the positioning process of the window beam according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. Also in the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device 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.
As shown in fig. 1, the utility model provides a tapered roller bearing engineering plastics holder is measured and is used positioning and clamping device, include: the support piece 1 is provided with a central through hole and is used for enabling a measuring base of the three-coordinate measuring machine to enter a measuring space after rotating for 90 degrees, and the small end of the retainer 4 is downwards inserted into the central through hole of the support piece 1 so as to support the retainer 4 on the support piece 1; the positioning blocks 2 are arranged on the support piece 1 along the circumferential direction and are used for being attached to the outer side surface of the retainer 4; the orientation block 3 is arranged above each positioning block 2 and is used for jointing the window beam or the window hole of the retainer 4; a pressing mechanism 10, at least one pressing mechanism 10 being arranged on the support 1 for cooperating with the positioning block 2 for positioning and clamping the holder 4 on the support 1.
In the above embodiment, as shown in fig. 2, preferably, the top surface of the support member 1 is respectively provided with 8 (only by way of example, and not by way of limitation) stepped holes 11 on two center circles, the top surface of the support member 1 is respectively provided with two square grooves 12 and two T-shaped grooves 13 along the radial direction, the bottom surface of the support member 1 corresponding to the square grooves 12 is provided with at least one first threaded hole 14, the bottom surface of the support member 1 corresponding to the T-shaped grooves 13 is provided with one second threaded hole 15, and the side surfaces of the support member 1 at two sides of the T-shaped grooves 13 are respectively provided with one third threaded hole 16.
In the above embodiment, preferably, two square grooves 12 form an angle of 90 ° along the radial direction of the supporting member 1, two T-shaped grooves 13 also form an angle of 90 ° along the radial direction of the supporting member 1, and one T-shaped groove 13 and one square groove 12 that are opposite to each other are located at the same central axis.
In the above embodiment, preferably, as shown in fig. 1 and 3, the apparatus further includes a standard member mainly composed of the measuring plate a and the support rods B, one end of the plurality of support rods B is connected to the stepped hole 11 of the support member 1, and the other end of the plurality of support rods B is connected to the measuring plate a, thereby horizontally fixing the support member 1 to the measuring plate a.
In the above embodiment, preferably, as shown in fig. 4 and 5, the lower portion of the positioning block 2 forms a boss structure for being inserted into the square groove 12 of the support member 1, the middle portion of the positioning block 2 is provided with an end face counterbore 21, and the end face counterbore 21 of the positioning block 2 is connected with the first threaded hole 14 of the support member 1 through a screw; a first V-shaped plate structure 22 is formed at the upper part of the positioning block 2, a V-shaped opening of the first V-shaped plate structure 22 faces the central axis of the supporting piece 1 and is used for being in contact and pressing with the outer side surface of the retainer 4, and a fourth threaded hole 23 is formed in the first V-shaped plate structure 22.
In the above embodiment, preferably, as shown in fig. 2, the first threaded holes 14 on the support 1 are a plurality of holes spaced in the radial direction, so that the holders 4 are positioned by adjusting the positions of the corresponding first threaded holes 14 on the support 1, and the holders 4 with different sizes are positioned at different positions.
In the above embodiment, preferably, as shown in fig. 6 and 9, the front side and the rear side of the orientation block 3 are respectively provided with an orientation groove 31 and an orientation boss 32, and the width of the orientation groove 31 is slightly larger than the width of the window beam 42 of the retainer 4, and the width of the orientation boss 32 is slightly smaller than the width of the window hole 41 of the retainer 4; meanwhile, a through hole 33 is formed in the orientation block 3, and the through hole 33 of the orientation block 3 is connected with the fourth threaded hole 23 of the positioning block 2 through a screw, so that the orientation block 3 is fixed on the positioning block 2.
In the above embodiment, it is preferable that the orientation groove 31 of the selective orientation block 3 is oriented toward the center axis of the stay 1 when the window beam of the cage 4 is oriented, and the orientation boss 32 of the selective orientation block 3 is oriented toward the center axis of the stay 1 when the window hole of the cage 4 is oriented, thereby simultaneously satisfying the odd-numbered or even-numbered orientation of the window beams 42 of the cage 4.
In the above embodiment, preferably, as shown in fig. 7 and 8, the pressing mechanism 10 includes: the lower part of the pressing block 5 forms a T-shaped key structure 51 and is in sliding fit with the T-shaped groove 13 of the support 1, so that the pressing block 5 can reciprocate on the T-shaped groove 13 of the support 1 along the radial direction, the position of the pressing block 5 is limited by a screw matched with the second threaded hole 15, the upper part of the pressing block 5 forms a second V-shaped plate structure 52, a V-shaped opening of the second V-shaped plate structure 52 faces the central axis of the support 1 and is used for being in contact with and pressing the outer side surface of the retainer 4, and a side surface counter bore 53 is formed in the middle part of the pressing block 5 behind the V-shaped opening of the second V-shaped plate structure 52 along the radial direction; the pressing plate 7 is fixed on the outer side surface of the support 1 through a screw 8 and a third threaded hole 16; and the spring 6 is embedded in a side face counter bore 53 of the pressing block 5 and is positioned between the pressing block 5 and the pressing plate 7, and is used for generating pressing force on the outer side face of the retainer 4 by the pressing block 5.
In the above embodiment, preferably, the V-shaped opening angles of the first V-shaped plate structure 22 and the second V-shaped plate structure 52 are consistent with the angle of the outer side surface of the window beam 42 of the holder 4, and rubber gaskets (not shown) are attached to the end surfaces of the V-shaped openings of the first V-shaped plate structure 22 and the second V-shaped plate structure 52, and are used for contacting with the outer side surface of the holder 4 to achieve the anti-skid and anti-scratch effects.
As shown in fig. 9 and 10, when the aperture 41 of the holder 4 is selected for directional measurement, the small end of the holder 4 is placed downward on the support 1, the planar positioning of the support 1 limits 1 translational degree of freedom (z) and 2 rotational degrees of freedom (u, V) of the holder 4, the V-shaped opening of the positioning block 2 is in two-point contact with the outer side surface of the holder 4 to position and limit 2 translational degrees of freedom (x, y) of the holder 4, and the insertion of the directional boss 32 of the directional block 3 into the aperture 41 of the holder 4 limits 1 rotational degree of freedom (w) of the holder 4. The compression block 5 slides in the T-shaped groove 13 through the spring 6, and the spring 6 exerts pressing force on the retainer 4, so that the positioning and clamping of the retainer 4 are completed. Meanwhile, a screw is installed at a second threaded hole 15 on the bottom surface of the support member 1 corresponding to the position of the T-shaped groove 13, and the screw is used as a sliding limit of the pressing block 5.
As shown in fig. 9 and 11, when the orientation measurement of the window beam 42 of the retainer 4 is selected, the small end of the retainer 4 is placed downward on the support 1, the plane positioning of the support 1 limits 1 translational degree of freedom (z) and 2 rotational degrees of freedom (u, V) of the retainer 4, the two-point contact positioning of the V-shaped opening of the positioning block 2 and the outer side surface of the retainer 4 limits 2 translational degrees of freedom (x, y) of the retainer 4, and the insertion of the window beam 42 of the retainer 4 into the orientation groove 31 of the orientation block 3 limits 1 rotational degree of freedom (w) of the retainer 4. The compression block 5 slides in the T-shaped groove 13 through the spring 6, and the spring 6 exerts pressing force on the retainer 4, so that the positioning and clamping of the retainer 4 are completed. And a screw is arranged at a second threaded hole 15 on the bottom surface of the support member 1 corresponding to the position of the T-shaped groove 13 and used as the sliding limit of the pressing block 5.
In the description of the present invention, it should be understood that the terms "first", "second", "third", etc. are used to define the components, and are used only for the convenience of distinguishing the components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a tapered roller bearing engineering plastics holder is measured and is used positioning and clamping device which characterized in that includes:
the measuring device comprises a supporting piece (1), a measuring base of the three-coordinate measuring machine and a measuring device, wherein a central through hole is formed in the supporting piece (1) and is used for enabling the measuring base of the three-coordinate measuring machine to enter a measuring space after rotating for 90 degrees, and the small end of a retainer (4) is downwards inserted into the central through hole of the supporting piece (1) so as to support the retainer (4) on the supporting piece (1);
the positioning blocks (2) are arranged on the support piece (1) along the circumferential direction and used for being attached to the outer side surface of the retainer (4);
the orientation block (3) is arranged above each orientation block (2) and is used for jointing the window beam or the window hole of the retainer (4);
-a pressing mechanism (10), at least one of said pressing mechanisms (10) being arranged on said support (1) for cooperating with said positioning block (2) for positioning and clamping said holder (4) on said support (1).
2. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing according to claim 1, wherein the top surface of the supporting member (1) is provided with a plurality of stepped holes (11) on two center circles, the top surface of the supporting member (1) is provided with a plurality of square grooves (12) and a plurality of T-shaped grooves (13) along the radial direction, the bottom surface of the supporting member (1) corresponding to the square grooves (12) is provided with at least one first threaded hole (14), the bottom surface of the supporting member (1) corresponding to the T-shaped grooves (13) is provided with a second threaded hole (15), and the side surfaces of the supporting member (1) on two sides of the T-shaped grooves (13) are provided with a third threaded hole (16).
3. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing as claimed in claim 2, wherein the number of the square grooves (12) and the number of the T-shaped grooves (13) are two, two of the square grooves (12) form an included angle of 90 degrees along the radial direction of the supporting member (1), two of the T-shaped grooves (13) also form an included angle of 90 degrees along the radial direction of the supporting member (1), and one of the opposite T-shaped grooves (13) and one of the square grooves (12) are located at the same central axis position.
4. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing according to claim 2, further comprising a standard member mainly composed of a measuring plate (a) and support rods (B), wherein one ends of the plurality of support rods (B) are connected with the stepped holes (11) on the support member (1), and the other ends of the plurality of support rods (B) are connected with the measuring plate (a), thereby horizontally fixing the support member (1) on the measuring plate (a).
5. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing as claimed in claim 2, wherein a boss structure is formed at the lower part of the positioning block (2) and is used for being inserted into the square groove (12) of the supporting member (1), an end face counter bore (21) is formed in the middle of the positioning block (2), and the end face counter bore (21) of the positioning block (2) is connected with the first threaded hole (14) of the supporting member (1) through a screw;
the upper portion of locating piece (2) forms first V template structure (22), just the V type opening orientation of first V template structure (22) the central axis of support piece (1) is used for with the lateral surface contact of holder (4) is compressed tightly, fourth screw hole (23) have been seted up on first V template structure (22).
6. The tapered roller bearing engineering plastic cage measuring positioning and clamping device is characterized in that the first threaded holes (14) on the supporting piece (1) are arranged in a plurality at intervals along the radial direction.
7. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing as claimed in claim 5, wherein the front side and the rear side of the orientation block (3) are respectively provided with an orientation groove (31) and an orientation boss (32), the width of the orientation groove (31) is slightly larger than the width of a window beam (42) of the retainer (4), and the width of the orientation boss (32) is slightly smaller than the width of a window hole (41) of the retainer (4);
meanwhile, a through hole (33) is formed in the orientation block (3), and the through hole (33) of the orientation block (3) is connected with a fourth threaded hole (23) of the positioning block (2) through a screw, so that the orientation block (3) is fixed on the positioning block (2).
8. The tapered roller bearing engineering plastic cage measuring positioning and clamping device as claimed in claim 7, characterized in that the orientation groove (31) of the orientation block (3) is selected to face the central axis of the support (1) when the window beam of the cage (4) is oriented, and the orientation boss (32) of the orientation block (3) is selected to face the central axis of the support (1) when the window hole of the cage (4) is oriented.
9. The tapered roller bearing engineering plastic cage measuring positioning and clamping device according to any one of claims 5 to 8, characterized in that the pressing mechanism (10) comprises:
a T-shaped key structure (51) is formed at the lower part of the pressing block (5) and is in sliding fit with the T-shaped groove (13) of the support member (1), so that the pressing block (5) can move back and forth on the T-shaped groove (13) of the support member (1) along the radial direction, the position of the pressing block (5) is limited by a screw matched with the second threaded hole (15), a second V-shaped plate structure (52) is formed at the upper part of the pressing block (5), a V-shaped opening of the second V-shaped plate structure (52) faces to the central axis of the support member (1) and is used for being in contact and pressing with the outer side face of the retainer (4), and a radial side face counter bore (53) is formed in the middle of the pressing block (5) behind the V-shaped opening of the second V-shaped plate structure (52);
the pressure plate (7) is fixed on the outer side surface of the support piece (1) through a screw (8) and the third threaded hole (16);
and the spring (6) is embedded in a side face counter bore (53) of the pressing block (5), is positioned between the pressing block (5) and the pressing plate (7), and is used for generating pressing force on the outer side face of the retainer (4) by the pressing block (5).
10. The positioning and clamping device for measuring the engineering plastic retainer of the tapered roller bearing is characterized in that the V-shaped opening angles of the first V-shaped plate structure (22) and the second V-shaped plate structure (52) are consistent with the angle of the outer side face of the window beam (42) of the retainer (4);
meanwhile, rubber gaskets are pasted on the end faces of the V-shaped openings of the first V-shaped plate structure (22) and the second V-shaped plate structure (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022530442.0U CN213688257U (en) | 2020-11-05 | 2020-11-05 | Positioning and clamping device for measuring tapered roller bearing engineering plastic retainer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022530442.0U CN213688257U (en) | 2020-11-05 | 2020-11-05 | Positioning and clamping device for measuring tapered roller bearing engineering plastic retainer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154984A (en) * | 2021-04-06 | 2021-07-23 | 人本股份有限公司 | Bearing retainer aperture position detection device |
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2020
- 2020-11-05 CN CN202022530442.0U patent/CN213688257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154984A (en) * | 2021-04-06 | 2021-07-23 | 人本股份有限公司 | Bearing retainer aperture position detection device |
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