CN213104898U - Gear machining is with location clamping frock based on automatic positioning rises technique of rising - Google Patents
Gear machining is with location clamping frock based on automatic positioning rises technique of rising Download PDFInfo
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- CN213104898U CN213104898U CN202021173558.7U CN202021173558U CN213104898U CN 213104898 U CN213104898 U CN 213104898U CN 202021173558 U CN202021173558 U CN 202021173558U CN 213104898 U CN213104898 U CN 213104898U
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Abstract
The utility model provides a gear machining is with location clamping frock based on automatic positioning rises and tightly rises technique, include: the base is arranged on a workbench of the machine tool and is provided with a stretching channel; the positioning taper sleeve is vertically arranged, is provided with a positioning channel, and has the lower end inserted into the upper port of the stretching channel; the supporting plate is sleeved on the outer wall of the positioning taper sleeve, and the gear to be processed is arranged on the upper surface of the supporting plate; the tensioning mandrel is provided with a tensioning channel, and a gap is reserved between the outer wall of the tensioning mandrel and the inner wall of the positioning hole; the pull rod penetrates through the tensioning channel, the positioning channel and the stretching channel, extends out of the lower part of the base, is connected with an oil cylinder at the bottom of the machine tool, and is connected with the upper end surface of the tensioning mandrel; and the upper gland is covered on the upper surface of the gear to be processed, and the upper end surface of the upper gland is connected with the oil cylinder at the top of the machine tool. The tool can realize automatic positioning of the gear to be machined, eliminates gaps of a common positioning pin in a positioning mode, is favorable for reducing radial runout of gear machining, has short upward moving stroke of the pull rod, and is convenient for clamping the gear to be machined.
Description
Technical Field
The utility model belongs to the technical field of gear machining, specifically, relate to a gear machining is with location clamping frock based on automatic positioning rises and tightly technique.
Background
The gear machining is a technological process for obtaining the specific structure and precision of a gear by using a mechanical method. The gear is a core transmission component in the movement of the automobile, the quality of the processing quality of the gear directly affects the vibration noise, the reliability and the like of an automobile assembly and even the whole automobile, and sometimes becomes a key factor for restricting the improvement of the product level.
Among them, the spur gear reducer is a power transmission mechanism that uses a speed converter of a gear to reduce the number of revolutions of a motor to a desired number of revolutions and obtain a large torque.
For example, a primary cylindrical gear reducer realizes speed reduction by the rotation of a pair of meshing gears arranged in a box body and the transmission of power from one shaft to the other shaft.
For the clamp for processing the cylindrical gear, the following patent documents mainly exist at home at present:
as disclosed in patent publication nos.: CN203471081U discloses a cylindrical gear clamp, which comprises a mandrel provided with a positioning end plate, and is characterized in that an expansion sleeve and a pressure plate are sleeved on the mandrel in a sliding manner, ring grooves which are arranged in a crossed manner are arranged on the inner wall and the outer wall of the expansion sleeve, a compression nut is arranged on the mandrel through threads, and the positioning end plate, the expansion sleeve, the pressure plate and the compression nut are sequentially arranged in an axial direction; a pressing sleeve is also arranged outside the compression nut. The clamping device has the advantages of firm clamping and difficulty in rotating the gear to be machined, and can improve machining quality. However, the clamp that this patent provided treats the clamping of processing pending gear, and simple structure fixes a position through the cooperation of the cover that expands with the pressure sleeve, only has once clamping location, and positioning accuracy is general, influences product quality.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists, the utility model aims to provide a gear machining is with location clamping frock based on the technique that rises in automatic positioning rises, the frock can realize treating the automatic positioning of processing the gear, eliminates ordinary locating pin locate mode clearance, is favorable to reducing tooth processing runout, and the pull rod shifts up the stroke shorter, is convenient for treat the clamping of processing the gear.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a gear machining is with location clamping frock based on automatic positioning rises technique that rises, includes: the base is detachably arranged on a workbench of a machine tool, a stretching channel penetrating through the base is formed in the middle of the upper surface of the base along the vertical direction, a lower port of the stretching channel corresponds to the output end of an oil cylinder at the bottom of the machine tool, and an upper port of the stretching channel corresponds to the output end of an oil cylinder at the top of the machine tool; the positioning taper sleeve is vertically arranged, a positioning channel which penetrates through the positioning taper sleeve and is coaxial with the stretching channel is formed in the inner side of the positioning taper sleeve, the upper portion of the positioning taper sleeve is positioned above the base, and the lower end of the positioning taper sleeve is inserted into the upper end opening of the stretching channel; the supporting plate is annular, the supporting plate is horizontally arranged on the upper end face of the base, the supporting plate is sleeved on the outer wall of the positioning taper sleeve, the gear to be machined is horizontally arranged on the upper surface of the supporting plate, a positioning hole coaxial with the stretching channel is formed in the middle of the gear to be machined, and the upper end of the positioning taper sleeve is inserted into the positioning hole to form primary rough positioning of the gear to be machined on the supporting plate; the tensioning mandrel is vertically arranged, a tensioning channel coaxial with the stretching channel is formed in the inner side of the tensioning mandrel, the tensioning mandrel is inserted into a positioning hole of the gear to be machined, the tensioning mandrel is sleeved on the positioning taper sleeve through the tensioning channel, the inner wall of the tensioning channel is matched with the outer wall of the positioning taper sleeve inserted into the inner side of the positioning hole to form secondary positioning and alignment of the gear to be machined, and a gap is reserved between the outer wall of the tensioning mandrel and the inner wall of the positioning hole; the pull rod is vertically arranged, penetrates through the tensioning channel, the positioning channel and the stretching channel and extends to the lower part of the base, the pull rod extending to the lower part of the base is connected with a bottom oil cylinder of the machine tool, the upper end of the pull rod is positioned above the upper surface of the tensioning mandrel, and the pull rod is connected with the upper end surface of the tensioning mandrel to form synchronous movement of the pull rod and the tensioning mandrel; the upper gland is arranged on the upper surface of the gear to be machined, the upper gland is in a pipe body coaxial with the stretching channel, the upper end face of the upper gland is connected with an oil cylinder at the top of the machine tool, and the upper gland is matched with the supporting plate to clamp and position the gear to be machined.
Furthermore, an assembly groove is formed in the upper end opening of the stretching channel of the base in the vertical direction, the lower end of the positioning taper sleeve is inserted into the assembly groove of the stretching channel, and the lower end face of the positioning taper sleeve is clamped on the inner bottom face of the assembly groove of the stretching channel.
Furthermore, the outer wall of the positioning taper sleeve above the base is convexly provided with an assembly ring along the circumferential direction of the positioning taper sleeve, and the positioning taper sleeve is detachably assembled with the upper surface of the base outside the stretching channel through the assembly ring.
Furthermore, the outer wall of the positioning taper sleeve inserted into the inner side of the positioning hole is a conical surface, and the inner wall of the tensioning channel of the tensioning mandrel is a conical surface matched with the outer wall of the upper part of the positioning taper sleeve.
Furthermore, a plurality of tensioning grooves are formed in the outer wall of the tensioning mandrel at intervals, the tensioning grooves are formed in the radial direction of the tensioning mandrel and are arranged in the axial direction of the tensioning mandrel, and the plurality of tensioning grooves are arranged at intervals in the circumferential direction of the tensioning mandrel.
Furthermore, the upper gland is in an inverted bowl structure, the middle of the upper end face of the upper gland is provided with an insertion opening, the upper end face of the upper gland positioned outside the insertion opening is provided with a plurality of connecting holes at intervals, and the upper gland is detachably connected with the output end of the oil cylinder at the top of the machine tool through the connecting holes; and the lower end cover of the upper gland is arranged on the upper surface of the gear to be processed.
Furthermore, a connecting ring is convexly arranged on the outer wall of the pull rod close to the upper end surface of the pull rod along the circumferential direction of the pull rod, and a plurality of assembling holes are arranged on the surface of the connecting ring at intervals along the circumferential direction of the connecting ring; the upper end surface of the tensioning mandrel is provided with an assembly blind hole matched with the assembly hole; the assembling rod is inserted into the assembling hole and the assembling blind hole to form detachable assembly between the pull rod and the tensioning mandrel; the assembling rod is a bolt.
Furthermore, a limiting channel communicated with the inner side of the stretching channel is formed in the side wall of the base along the horizontal direction, a limiting screw is inserted into the limiting channel, the inner side end of the limiting screw extending into the stretching channel abuts against the outer wall of the pull rod, and the rotation of the pull rod is limited.
The beneficial effects of the utility model reside in that:
realizing automatic positioning: the outer diameter of the tensioning mandrel can be attached to the inner wall of the positioning hole of the gear to be machined (the attachment degree is more than 85%), a gap existing in a common positioning pin positioning mode is eliminated, automatic centering is realized, and the radial runout of gear machining is reduced; because a tensioning mandrel mode is adopted, theoretical positioning is realized by positioning by the positioning taper sleeve, and the positioning taper sleeve is in a fixed state, the repeated positioning precision of the gear to be processed is high.
The moving stroke is short, so that the clamping of the gear to be processed is convenient: because the positioning hole of the gear to be processed is a through hole, the shrinkage of the outer diameter of the tensioning mandrel is only required to be smaller than that of the positioning hole of the gear to be processed, namely the upward movement stroke of the pull rod is shorter, and the gear to be processed is convenient to clamp.
Drawings
Fig. 1 is a schematic structural view of a positioning and clamping tool for gear machining based on an automatic positioning and tensioning technology according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic structural view of a gear to be machined in a positioning and clamping tool for gear machining based on an automatic positioning and tensioning technology according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a tension mandrel in a positioning and clamping tool for gear machining, which is provided by an embodiment of the present invention and is based on an automatic positioning and tension technology;
FIG. 5 is a bottom view of FIG. 4;
3 fig. 3 6 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 34 3. 3
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Referring to fig. 1~6, a gear machining is with location clamping frock based on automatic positioning rises and tightly rises technique, include: the base 1 is detachably arranged on a workbench of a machine tool (not shown), a stretching channel 11 penetrating through the base 1 is formed in the middle of the upper surface of the base 1 along the vertical direction, a lower port of the stretching channel 11 corresponds to an output end of a cylinder (not shown) at the bottom of the machine tool, and an upper port of the stretching channel 11 corresponds to an output end of a cylinder (not shown) at the top of the machine tool; the positioning taper sleeve 2 is vertically arranged, a positioning channel 21 which penetrates through the positioning taper sleeve 2 and is coaxial with the stretching channel 11 is formed in the inner side of the positioning taper sleeve 2, the upper portion of the positioning taper sleeve 2 is located above the base 1, and the lower end of the positioning taper sleeve 2 is inserted into an upper port of the stretching channel 11; the supporting plate 3 is annular, the supporting plate 3 is horizontally arranged on the upper end face of the base 1, the supporting plate 3 is sleeved on the outer wall of the positioning taper sleeve 2, the gear 100 to be machined is horizontally arranged on the upper surface of the supporting plate 3, a positioning hole 101 coaxial with the stretching channel 11 is formed in the middle of the gear 100 to be machined, and the upper end of the positioning taper sleeve 2 is inserted into the positioning hole 101 to form primary coarse positioning of the gear 100 to be machined on the supporting plate 3; the tensioning mandrel 4 is vertically arranged, a tensioning channel 41 coaxial with the stretching channel 11 is formed in the inner side of the tensioning mandrel 4, the tensioning mandrel 4 is inserted into the positioning hole 101 of the gear 100 to be machined, the tensioning mandrel 4 is sleeved on the positioning taper sleeve 2 through the tensioning channel 41, the inner wall of the tensioning channel 41 is matched with the outer wall of the positioning taper sleeve 2 inserted into the inner side of the positioning hole 101, secondary positioning and alignment of the gear 100 to be machined are formed, and a gap is reserved between the outer wall of the tensioning mandrel 4 and the inner wall of the positioning hole 101; the pull rod 5 is vertically arranged, the pull rod 5 penetrates through the tension channel 41, the positioning channel 21 and the stretching channel 11 and extends to the lower part of the base 1, the pull rod 5 extending to the lower part of the base 1 is connected with a bottom oil cylinder of a machine tool, the upper end of the pull rod 5 is positioned above the upper surface of the tension mandrel 4, and the pull rod 5 is connected with the upper end surface of the tension mandrel 4 to form synchronous movement of the pull rod 5 and the tension mandrel 4; and the upper gland 6 is arranged on the upper surface of the gear 100 to be processed in a covering manner, the upper gland 6 is shaped into a pipe body coaxial with the stretching channel 11, the upper end surface of the upper gland 6 is connected with an oil cylinder at the top of the machine tool, and the upper gland 6 and the supporting plate 3 are matched to clamp and position the gear 100 to be processed.
Furthermore, an assembly groove 12 is formed in an upper end opening of the stretching channel 11 of the base 1 along the vertical direction, the lower end of the positioning taper sleeve 2 is inserted into the assembly groove 12 of the stretching channel 11, and the lower end surface of the positioning taper sleeve 2 is clamped on the inner bottom surface of the assembly groove 12 of the stretching channel 11.
Further, the outer wall of the positioning taper sleeve 2 located above the base 1 is convexly provided with an assembling ring 22 along the circumferential direction of the positioning taper sleeve 2, and the positioning taper sleeve 2 is detachably assembled with the upper surface of the base 1 located outside the stretching channel 11 through the assembling ring 22.
Furthermore, the outer wall of the positioning taper sleeve 2 inserted into the inner side of the positioning hole 101 is a conical surface, and the inner wall of the tension channel 41 of the tension mandrel 4 is a conical surface matched with the outer wall of the upper part of the positioning taper sleeve 2.
Furthermore, a plurality of tensioning grooves 42 are formed in the outer wall of the tensioning mandrel 4 at intervals, the tensioning grooves 42 are formed along the radial direction of the tensioning mandrel 4 and along the axial direction of the tensioning mandrel 4, and the plurality of tensioning grooves 42 are arranged at intervals along the circumferential direction of the tensioning mandrel 4.
Furthermore, the upper gland 6 is in an inverted bowl structure, the middle of the upper end surface of the upper gland 6 is provided with a socket 61, the upper end surface of the upper gland 6 positioned outside the socket 61 is provided with a plurality of connecting holes 62 at intervals, and the upper gland 6 is detachably connected with the output end of the oil cylinder at the top of the machine tool through the connecting holes 62; the lower end cover of the upper gland 6 is arranged on the upper surface of the gear 100 to be processed.
Furthermore, a connecting ring 51 is convexly arranged on the outer wall of the pull rod 5 close to the upper end surface of the pull rod 5 along the circumferential direction of the pull rod 5, and a plurality of assembling holes 52 are formed in the surface of the connecting ring 51 at intervals along the circumferential direction of the connecting ring 51; the upper end surface of the tensioning mandrel 4 is provided with a blind assembling hole 43 matched with the assembling hole 52; the assembling rod 44 is inserted into the assembling hole 52 and the assembling blind hole 43 to form detachable assembly between the pull rod 5 and the tensioning mandrel 4; the mounting bar 44 is a bolt.
Furthermore, a limiting channel 13 communicated with the inner side of the stretching channel 11 is formed in the side wall of the base 1 along the horizontal direction, a limiting screw 14 is inserted into the limiting channel 13, and the limiting screw 14 extends into the inner side end of the stretching channel 11 and abuts against the outer wall of the pull rod 5 to limit the rotation of the pull rod 5.
Gear machining is with work flow of location clamping frock based on automatic positioning rises and tightly rises technique as follows:
in a pre-clamping state, the oil cylinder at the top of the machine tool and the upper gland 6 are positioned at the top of the machine tool, the oil cylinder at the bottom of the machine tool drives the pull rod 5 to be in an extending state (top up), the tensioning mandrel 4 leaves away from the conical surface of the positioning taper sleeve 2, the tensioning mandrel 4 is contracted to be in a natural state, and the tensioning outer diameter is reduced. At this time, because the positioning hole 101 of the gear 100 is larger than the tensioning outer diameter, the gear 100 to be machined can be smoothly sleeved on the tensioning mandrel 4 until the bottom plane of the gear 100 to be machined is flatly attached to the supporting plate 3, and at this time, pre-positioning of the gear 100 to be machined is realized. Then, a machine tool button is started, and the oil cylinder at the bottom of the machine tool contracts to drive the pull rod 5 to move downwards. The inner conical surface of the tensioning channel 41 of the tensioning mandrel 4 is matched with the outer conical surface of the positioning taper sleeve 2, so that the outer diameter of the tensioning mandrel 4 is outwards tensioned (the outer diameter is increased), and the gear 100 to be processed is pressed. The positioning taper sleeve 2 is coaxially fixed on the base 1, and the tensioning mandrel 4 automatically aligns the center along with the conical surface, so that the gear 100 to be processed automatically aligns the center to play a role in automatic centering;
then, the oil cylinder at the top of the machine tool drives the upper gland 6 to move downwards until the upper gland 6 contacts the upper surface of the gear 100 to be machined, the gear 100 to be machined is tightly pressed, and clamping of the gear 100 to be machined is completed;
the gear 100 to be machined may be machined by a hobbing process.
When the gear to be machined is loosened, the oil cylinder at the bottom of the machine tool extends firstly to drive the pull rod 5 to move upwards, the inner conical surface of the tensioning channel 41 of the tensioning mandrel 4 leaves the positioning taper sleeve 2, the outer diameter of the tensioning mandrel 4 is contracted, a gap is reserved between the gear 100 to be machined and the outer wall of the tensioning mandrel 4, and the gear 100 to be machined can be taken out conveniently. Then the oil cylinder on the top of the machine tool moves upwards to drive the upper gland 6 to leave the gear 100 to be machined, the gear 100 to be machined is in a loose state, and finally the gear 100 to be machined is taken down by hands.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the scope of the present invention, which is intended to be covered by the appended claims.
Claims (8)
1. The utility model provides a gear machining is with location clamping frock based on automatic positioning rises technique that rises which characterized in that includes:
the base is detachably arranged on a workbench of a machine tool, a stretching channel penetrating through the base is formed in the middle of the upper surface of the base along the vertical direction, a lower port of the stretching channel corresponds to the output end of an oil cylinder at the bottom of the machine tool, and an upper port of the stretching channel corresponds to the output end of an oil cylinder at the top of the machine tool;
the positioning taper sleeve is vertically arranged, a positioning channel which penetrates through the positioning taper sleeve and is coaxial with the stretching channel is formed in the inner side of the positioning taper sleeve, the upper portion of the positioning taper sleeve is positioned above the base, and the lower end of the positioning taper sleeve is inserted into the upper end opening of the stretching channel;
the supporting plate is annular, the supporting plate is horizontally arranged on the upper end face of the base, the supporting plate is sleeved on the outer wall of the positioning taper sleeve, the gear to be machined is horizontally arranged on the upper surface of the supporting plate, a positioning hole coaxial with the stretching channel is formed in the middle of the gear to be machined, and the upper end of the positioning taper sleeve is inserted into the positioning hole to form primary rough positioning of the gear to be machined on the supporting plate;
the tensioning mandrel is vertically arranged, a tensioning channel coaxial with the stretching channel is formed in the inner side of the tensioning mandrel, the tensioning mandrel is inserted into a positioning hole of the gear to be machined, the tensioning mandrel is sleeved on the positioning taper sleeve through the tensioning channel, the inner wall of the tensioning channel is matched with the outer wall of the positioning taper sleeve inserted into the inner side of the positioning hole to form secondary positioning and alignment of the gear to be machined, and a gap is reserved between the outer wall of the tensioning mandrel and the inner wall of the positioning hole;
the pull rod is vertically arranged, penetrates through the tensioning channel, the positioning channel and the stretching channel and extends to the lower part of the base, the pull rod extending to the lower part of the base is connected with a bottom oil cylinder of the machine tool, the upper end of the pull rod is positioned above the upper surface of the tensioning mandrel, and the pull rod is connected with the upper end surface of the tensioning mandrel to form synchronous movement of the pull rod and the tensioning mandrel;
the upper gland is arranged on the upper surface of the gear to be machined, the upper gland is in a pipe body coaxial with the stretching channel, the upper end face of the upper gland is connected with an oil cylinder at the top of the machine tool, and the upper gland is matched with the supporting plate to clamp and position the gear to be machined.
2. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology as claimed in claim 1, wherein an assembly groove is formed in an upper port of a stretching channel of the base in a vertical direction, a lower end of the positioning taper sleeve is inserted into the assembly groove of the stretching channel, and a lower end face of the positioning taper sleeve is clamped to an inner bottom face of the assembly groove of the stretching channel.
3. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology as claimed in claim 1 or 2, wherein an assembly ring is convexly arranged on the outer wall of the positioning taper sleeve above the base along the circumferential direction of the positioning taper sleeve, and the positioning taper sleeve is detachably assembled with the upper surface of the base outside the stretching channel through the assembly ring.
4. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology as claimed in claim 1, wherein an outer wall of the positioning taper sleeve inserted into the positioning hole is a conical surface, and an inner wall of the tensioning channel of the tensioning mandrel is a conical surface matched with an outer wall of an upper portion of the positioning taper sleeve.
5. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology as claimed in claim 1 or 4, wherein a plurality of tensioning grooves are formed in the outer wall of the tensioning mandrel at intervals, the tensioning grooves are formed along the radial direction of the tensioning mandrel and arranged along the axial direction of the tensioning mandrel, and the plurality of tensioning grooves are arranged along the circumferential direction of the tensioning mandrel at intervals.
6. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology is characterized in that the upper gland is in an inverted bowl structure, a socket is formed in the middle of the upper end face of the upper gland, a plurality of connecting holes are formed in the upper end face of the upper gland positioned on the outer side of the socket at intervals, and the upper gland is detachably connected with the output end of an oil cylinder at the top of a machine tool through the connecting holes;
and the lower end cover of the upper gland is arranged on the upper surface of the gear to be processed.
7. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology is characterized in that a connecting ring is convexly arranged on the outer wall of the pull rod close to the upper end face of the pull rod along the circumferential direction of the pull rod, and a plurality of assembling holes are formed in the surface of the connecting ring at intervals along the circumferential direction of the connecting ring;
the upper end surface of the tensioning mandrel is provided with an assembly blind hole matched with the assembly hole;
the assembling rod is inserted into the assembling hole and the assembling blind hole to form detachable assembly between the pull rod and the tensioning mandrel;
the assembling rod is a bolt.
8. The positioning and clamping tool for gear machining based on the automatic positioning and tensioning technology is characterized in that a limiting channel communicated with the inner side of the stretching channel is horizontally formed in the side wall of the base, a limiting screw is inserted into the limiting channel, the inner end of the limiting screw extending into the stretching channel abuts against the outer wall of the pull rod, and rotation of the pull rod is limited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021173558.7U CN213104898U (en) | 2020-06-23 | 2020-06-23 | Gear machining is with location clamping frock based on automatic positioning rises technique of rising |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021173558.7U CN213104898U (en) | 2020-06-23 | 2020-06-23 | Gear machining is with location clamping frock based on automatic positioning rises technique of rising |
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| CN213104898U true CN213104898U (en) | 2021-05-04 |
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| CN202021173558.7U Active CN213104898U (en) | 2020-06-23 | 2020-06-23 | Gear machining is with location clamping frock based on automatic positioning rises technique of rising |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579381A (en) * | 2021-06-25 | 2021-11-02 | 北京精密机电控制设备研究所 | Jet disc assembly assembling tool for electro-hydraulic servo valve |
| CN113787357A (en) * | 2021-08-16 | 2021-12-14 | 北京实验工厂有限责任公司 | Positioning and clamping device and method for processing pin shaft hole system of cross shaft press-fitting assembly |
| CN117968938A (en) * | 2024-03-28 | 2024-05-03 | 辽宁天凯汽车部件制造有限公司 | Detection tool for engine crankshaft damping belt pulley |
-
2020
- 2020-06-23 CN CN202021173558.7U patent/CN213104898U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579381A (en) * | 2021-06-25 | 2021-11-02 | 北京精密机电控制设备研究所 | Jet disc assembly assembling tool for electro-hydraulic servo valve |
| CN113787357A (en) * | 2021-08-16 | 2021-12-14 | 北京实验工厂有限责任公司 | Positioning and clamping device and method for processing pin shaft hole system of cross shaft press-fitting assembly |
| CN117968938A (en) * | 2024-03-28 | 2024-05-03 | 辽宁天凯汽车部件制造有限公司 | Detection tool for engine crankshaft damping belt pulley |
| CN117968938B (en) * | 2024-03-28 | 2024-06-04 | 辽宁天凯汽车部件制造有限公司 | Detection tool for engine crankshaft damping belt pulley |
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