CN214237708U - A three-pin shaft type universal joint processing fixing device - Google Patents
A three-pin shaft type universal joint processing fixing device Download PDFInfo
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- CN214237708U CN214237708U CN202022934453.5U CN202022934453U CN214237708U CN 214237708 U CN214237708 U CN 214237708U CN 202022934453 U CN202022934453 U CN 202022934453U CN 214237708 U CN214237708 U CN 214237708U
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- driving mechanism
- ring
- positioning
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Abstract
本实用新型公开了一种三销轴式万向节加工用固定装置，属于万向节生产技术领域。它包括夹具安装板、定位凸环、定位凹环、心轴、第一驱动机构和第二驱动机构，所述定位凸环固定安装在夹具安装板上，定位凹环位于定位凸环上方并与其卡合配合，所述心轴一端设有弹性胀套，其另一端依次穿过定位凹环、定位凸环和夹具安装板并与第一驱动机构相连，所述定位凹环与第二驱动机构相连，其中第一驱动机构、第二驱动机构分别用于驱动心轴和定位凹环上下运动。采用本实用新型的技术方案能够解决传统工艺存在的定心及换向角度不准的问题，有效提高了三销轴式万向节加工时定心及换向角度的准确度，降低误差，提高产品的精度，也提高了自动化程度。
The utility model discloses a fixing device for processing a three-pin shaft type universal joint, which belongs to the technical field of universal joint production. It includes a fixture mounting plate, a positioning convex ring, a positioning concave ring, a mandrel, a first driving mechanism and a second driving mechanism. For snap fit, one end of the mandrel is provided with an elastic expansion sleeve, and the other end of the mandrel passes through the positioning concave ring, the positioning convex ring and the fixture mounting plate in sequence and is connected with the first driving mechanism, and the positioning concave ring is connected with the second driving mechanism connected, wherein the first driving mechanism and the second driving mechanism are respectively used to drive the mandrel and the positioning concave ring to move up and down. The technical solution of the utility model can solve the problems of inaccurate centering and reversing angles existing in the traditional process, effectively improve the accuracy of centering and reversing angles during processing of the three-pin shaft universal joint, reduce errors, and improve The precision of the product also improves the degree of automation.
Description
Technical Field
The utility model belongs to the technical field of the universal joint production, more specifically say, relate to a fixing device is used in processing of three round pin axle type universal joints.
Background
With the development of industry, the variety of mechanical equipment is continuously updated, the development of universal joints is also continuously updated, and various universal joints appear in the life of people and are applied to various production equipment. The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The universal joint is combined with a transmission shaft and is called a universal joint transmission device.
There are many types of universal joints, such as cross-type universal joints, twin-type universal joints, triple-pin type universal joints, and the like. The three-pin shaft type universal joint has higher requirements on various aspects such as product precision and the like due to the structural characteristics. At present, in a traditional machining process, after a pin shaft is machined, a three-pin shaft type universal joint is loosened, and then the three-pin shaft type universal joint is manually rotated and reversed to be machined (such as clamping and positioning by using a three-jaw chuck), wherein the clamping and positioning are inaccurate during machining, the accuracy of centering and reversing angle during machining of the three-pin shaft type universal joint cannot be guaranteed, the precision of a product is low, and the caused error cannot meet the requirement of the size of the product. Therefore, a fixing device for processing a three-pin shaft type universal joint with accurate centering and reversing needs to be designed, and the problems are effectively solved.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
The utility model aims to overcome the centering that exists among the traditional processing technology and the inaccurate less than that leads to the product precision of switching-over angle, provide a fixing device is used in processing of three pin shaft type universal joints. Adopt the technical scheme of the utility model the above-mentioned problem can effectively be solved, the degree of accuracy of centering and switching-over angle when having improved three round pin shaft type universal joint processing has reduced the error, improves the precision of product.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
the utility model discloses a fixing device is used in processing of three round pin axle type universal joints, including anchor clamps mounting panel, location bulge loop, mandrel, first actuating mechanism and second actuating mechanism, location bulge loop fixed mounting is on the anchor clamps mounting panel, and the location bulge loop is located location bulge loop top and rather than the block cooperation, mandrel one end is equipped with the elastic expansion cover, and its other end passes location bulge loop, location bulge loop and anchor clamps mounting panel in proper order and links to each other with first actuating mechanism, the location bulge loop links to each other with second actuating mechanism, and wherein first actuating mechanism, second actuating mechanism are used for driving mandrel and location bulge loop up-and-down motion respectively.
Furthermore, the first driving mechanism structure comprises a first oil cylinder and a fixed bottom plate, the fixed bottom plate is installed below the clamp installation plate, the first oil cylinder is fixedly installed on the fixed bottom plate, and the lower end of the mandrel is connected with a piston rod of the first oil cylinder through a lever mechanism.
Furthermore, the lever mechanism comprises a connecting block, one end of the connecting block is connected with the lower end of the mandrel through a connecting rod, the other end of the connecting block is connected with a piston rod of the first oil cylinder through a floating joint, and the middle part of the connecting block is hinged to the lower part of the fixture mounting plate through a connecting block mounting plate.
Furthermore, the second driving mechanism comprises a second oil cylinder, the second oil cylinder is fixedly arranged on the clamp mounting plate, and a piston rod of the second oil cylinder is in driving connection with the fixed bottom plate; the front end of the fixed bottom plate is provided with an ejection block, and through holes for the ejection block to penetrate out are processed on the fixture mounting plate and the positioning convex ring.
Furthermore, the ejection block comprises a lower cylindrical ring and an upper cylindrical ring, a through hole for the lower cylindrical ring to penetrate out is processed on the clamp mounting plate, and a through hole for the upper cylindrical ring to penetrate out is processed on the positioning convex ring.
Furthermore, 3 positioning grooves are uniformly distributed below the positioning concave ring along the circumferential direction of the positioning concave ring, and 3 convex blocks matched with the positioning grooves are processed above the positioning convex ring along the circumferential direction of the positioning convex ring.
Furthermore, oil pipe joints are arranged on two sides of the clamp mounting plate, oil passages are arranged in the clamp mounting plate, the oil pipe joints on the two sides are connected with the oil pipes through the oil passages in the clamp mounting plate, and the first oil cylinder and the second oil cylinder are connected with the oil pipe joints on the two sides of the clamp mounting plate through rotary joints respectively.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a fixing device for processing three-pin shaft type universal joint, which comprises a clamp mounting plate, a positioning convex ring, a positioning concave ring, a mandrel, a first driving mechanism and a second driving mechanism, wherein the structure is optimally designed, the first driving mechanism is used for expanding and fixing the three-pin shaft type universal joint and the positioning concave ring on the mandrel, the second driving mechanism is used for ejecting the three-pin shaft type universal joint and the positioning concave ring and then directly reversing on the mandrel, and the positioning convex ring and the positioning concave ring are matched for installation, thereby solving the problem of inaccurate centering and reversing angle in the traditional method, effectively improving the accuracy of the centering and reversing angle in the processing of the three-pin shaft type universal joint, reducing errors, improving the precision of products, improving the automation degree compared with a manual operation mode, reducing the labor intensity, reducing the cost and effectively improving the production efficiency, meanwhile, the safety of workers is guaranteed.
(2) The fixing device for processing the three-pin shaft type universal joint of the utility model optimizes the specific structures of the first and second driving mechanisms to ensure that the first and second driving mechanisms are mutually matched, utilizes the lever mechanism to realize the expansion and fixation of the universal joint and the positioning concave ring on the mandrel, and ensures that the universal joint and the positioning concave ring are reversed together, thereby facilitating the subsequent accurate reversing; and then the universal joint and the positioning concave ring are ejected by the ejection block, so that the subsequent reversing operation is facilitated.
(3) The utility model discloses a fixing device is used in processing of three-pin shaft type universal joint, location bulge loop below has 3 constant head tanks along its circumferencial direction evenly distributed, and location bulge loop top has 3 lugs with constant head tank matched with along its circumferencial direction processing, through the cooperation installation of constant head tank and lug to realized the accurate switching-over of three-pin shaft type universal joint, guaranteed three-pin shaft type universal joint when adding the degree of accuracy of switching-over angle man-hour, and then improved the product precision.
(4) The utility model discloses a fixing device is used in processing of three round pin axle type universal joints, first hydro-cylinder and second hydro-cylinder link to each other through the oil pipe joint of rotary joint with anchor clamps mounting panel both sides respectively to oil pipe in with the anchor clamps mounting panel links to each other, through adopting the phenomenon that the winding is in the same place between avoiding taking place the pipeline that rotary joint can be better, prevent the pipeline winding.
Drawings
Fig. 1 is a schematic structural view of a fixing device for processing a three-pin-shaft type universal joint of the present invention;
fig. 2 is an enlarged view of another view structure of the fixing device for processing the three-pin-shaft type universal joint of the present invention;
FIG. 3 is a schematic structural view of the positioning concave ring of the present invention;
fig. 4 is a schematic structural view of the positioning convex ring of the present invention.
In the figure: 1. a clamp mounting plate; 2. a first cylinder; 3. a second cylinder; 4. fixing the bottom plate; 5. connecting blocks; 6. a connecting block mounting plate; 7. a circular shaft; 8. a connecting rod; 9. a mandrel; 10. ejecting a block; 101. a lower cylindrical ring; 102. an upper cylindrical ring; 11. positioning the convex ring; 111. a bump; 12. positioning the concave ring; 121. positioning a groove; 13. elastic expansion sleeve; 14. a swivel joint; 15. a floating joint; 16. an oil pipe; 17. a tripod universal joint.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
As shown in fig. 1 and fig. 2, the fixing device for machining a three-pin universal joint of the present embodiment includes a fixture mounting plate 1, a positioning convex ring 11, a positioning concave ring 12, a spindle 9, a first driving mechanism and a second driving mechanism, the positioning convex ring 11 is fixedly arranged on the clamp mounting plate 1, the positioning concave ring 12 is positioned above the positioning convex ring 11 and is clamped and matched with the positioning convex ring, one end of the mandrel 9 is provided with an elastic expansion sleeve 13, the other end of the positioning concave ring passes through the positioning concave ring 12, the positioning convex ring 11 and the clamp mounting plate 1 in sequence and is connected with a first driving mechanism, the first driving mechanism drives the mandrel 9 and the elastic expansion sleeve 13 to move downwards, so that the three-pin universal joint 17 and the positioning concave ring 12 are expanded and fixed on the mandrel 9, by arranging the mandrel 9, the mandrel 9 is reversed, so that the centering accuracy of the universal joint in the machining process is improved, and the product precision is improved; the positioning concave ring 12 is connected with a second driving mechanism, and the three-pin shaft type universal joint 17 and the positioning concave ring 12 are ejected out by the second driving mechanism for reversing; the first driving mechanism and the second driving mechanism are respectively used for driving the mandrel 9 and the positioning concave ring 12 to move up and down, the structure of the first driving mechanism and the second driving mechanism is optimally designed, and the positioning convex ring 11 and the positioning concave ring 12 are installed in a matched mode, so that the problem of inaccurate centering and reversing angles in the traditional method is solved, the accuracy of centering and reversing angles in the machining process of the three-pin shaft type universal joint 17 is effectively improved, errors are reduced, the precision of a product is improved, the automation degree is also improved compared with a manual operation mode, the labor intensity is reduced, the cost is also reduced, the production efficiency is effectively improved, and meanwhile, the safety of workers is guaranteed.
Specifically, as shown in fig. 1, the first driving mechanism structure includes a first oil cylinder 2 and a fixed base plate 4, the fixed base plate 4 is installed below the fixture mounting plate 1, the first oil cylinder 2 is fixedly installed on the fixed base plate 4, the lower end of the mandrel 9 is connected with a piston rod of the first oil cylinder 2 through a lever mechanism, and the lever mechanism is used for driving the mandrel 9 and the elastic expansion sleeve 13 to move, so that the positioning concave ring 12 and the three-pin universal joint 17 are expanded and fixed. The lever mechanism comprises a connecting block 5, the connecting block 5 is of an L-shaped structure, one end of the connecting block is connected with the lower end of a mandrel 9 through a connecting rod 8 (the connecting rod 8 can adopt a component with similar action to a floating joint 15), the other end of the connecting block is connected with a piston rod of the first oil cylinder 2 through the floating joint 15, and the middle part of the connecting block 5 is hinged and installed below the clamp installing plate 1 through a connecting block installing plate 6; the connecting block mounting plate 6 is of an L-shaped structure, one side of the connecting block mounting plate is fixedly mounted below the fixed bottom plate 4, the other side of the connecting block mounting plate is hinged with the middle of the L-shaped connecting block 5 through the round shaft 7, and when a piston rod of the first oil cylinder 2 moves upwards, the connecting block 5 controls the spindle 9 to move downwards, so that the elastic expansion sleeve 13 on the spindle 9 is driven to move downwards, and the positioning concave ring 12 and the three-pin shaft type universal joint 17 are expanded and tightly fixed. Through carrying out optimal design to the concrete structure of first actuating mechanism, utilize lever mechanism to realize that universal joint and location concave ring 12 expand tightly fixedly on mandrel 9, make universal joint and location concave ring 12 commutate together, the follow-up accurate switching-over of being convenient for.
The second driving mechanism comprises a second oil cylinder 3, as shown in fig. 2, the second oil cylinder 3 is fixedly arranged on the clamp mounting plate 1, and a piston rod of the second oil cylinder is in driving connection with the fixed bottom plate 4; the front end of the fixed bottom plate 4 is provided with an ejection block 10, the ejection block 10 comprises a lower layer cylindrical ring 101 and an upper layer cylindrical ring 102, a through hole for the lower layer cylindrical ring 101 to penetrate out is processed on the clamp mounting plate 1, a through hole for the upper layer cylindrical ring 102 to penetrate out is processed on the positioning convex ring 11, the ejection block 10 is slidably mounted in the clamp mounting plate 1 and the positioning convex ring 11, and the positioning concave ring 12 and the three-pin universal joint 17 can be ejected out through the upper layer cylindrical ring 102; when the piston rod of the second oil cylinder 3 moves upwards, the fixed bottom plate 4, the ejection block 10, the first oil cylinder 2 and the lower lever mechanism are driven to move upwards integrally, so that the positioning concave ring 12 and the three-pin universal joint 17 are ejected out under the condition that the elastic expansion sleeve 13 is ensured to expand the positioning concave ring 12 and the three-pin universal joint 17, and the subsequent reversing operation of the three-pin universal joint 17 is facilitated. Through carrying out the optimal design to the concrete structure of second actuating mechanism, utilize ejecting piece 10 ejecting universal joint and location concave ring 12 to the switching-over operation of follow-up carrying on of being convenient for has also further improved degree of automation.
As shown in fig. 3, the outer portion of the positioning concave ring 12 is an approximate regular triangular prism structure, and 3 positioning grooves 121 are uniformly distributed below the positioning concave ring 12 along the circumferential direction thereof, that is, one positioning groove 121 is processed below the positioning concave ring 12 along the circumferential direction thereof at intervals of 120 degrees; as shown in fig. 4, the exterior of the positioning convex ring 11 is an approximate semi-cylindrical ring structure, and 3 protrusions 111 matched with the positioning grooves 121 on the positioning concave ring 12 are processed above the positioning convex ring 11, and the protrusions 111 on the positioning convex ring 11 and the positioning grooves 121 on the positioning concave ring 12 are installed in a matching manner, so that the accurate reversing of the three-pin shaft type universal joint 17 is realized, the accuracy of the reversing angle of the three-pin shaft type universal joint 17 during processing is ensured, and the product precision is further improved. As shown in fig. 1 and 2, oil pipe joints are arranged on two sides of the clamp mounting plate 1, oil passages are arranged in the clamp mounting plate 1, the oil passages on the two sides are connected with oil pipes 16 through the oil passages in the clamp mounting plate 1, the first oil cylinder 2 and the second oil cylinder 3 are respectively connected with the oil passages on the two sides of the clamp mounting plate 1 through rotary joints 14 so as to be connected with the oil pipes 16 in the clamp mounting plate 1, and the rotary joints 14 can be adopted to better avoid the phenomenon that the pipelines are wound together, so that the pipelines are prevented from being wound.
During processing, a piston rod of the first oil cylinder 2 moves upwards to drive the mandrel 9 and the elastic expansion sleeve 13 on the mandrel 9 to move downwards, so that the positioning concave ring 12 and the three-pin-shaft type universal joint 17 are expanded, and a grinding wheel (the grinding wheel can be controlled by the oil cylinder) near the clamp is used for grinding one pin shaft of the universal joint; after the machining, the piston rod of the second oil cylinder 3 moves upwards, so that the ejection block 10 is driven to move upwards to eject the positioning concave ring 12 and the three-pin shaft type universal joint 17 for reversing; after the direction is changed, the first oil cylinder 2 drives the positioning concave ring 12 and the three-pin shaft type universal joint 17 to return to the positioning convex ring 11, the positioning groove 121 on the positioning concave ring 12 and the convex block 111 on the positioning convex ring 11 are installed in a matched mode, accurate direction changing is achieved, then the other pin shaft of the three-pin shaft type universal joint 17 is machined, and after the direction is changed twice, all three pin shafts of the three-pin shaft type universal joint 17 can be machined. After the machining is finished, the piston rod of the first oil cylinder 2 moves downwards to drive the mandrel 9 and the elastic expansion sleeve 13 on the mandrel 9 to move upwards, so that the positioning concave ring 12 and the three-pin shaft type universal joint 17 are loosened, the machined three-pin shaft type universal joint 17 is taken out, and the other three-pin shaft type universal joint 17 to be machined is placed on the positioning concave ring 12 for machining.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022934453.5U CN214237708U (en) | 2020-12-09 | 2020-12-09 | A three-pin shaft type universal joint processing fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022934453.5U CN214237708U (en) | 2020-12-09 | 2020-12-09 | A three-pin shaft type universal joint processing fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN214237708U true CN214237708U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022934453.5U Expired - Fee Related CN214237708U (en) | 2020-12-09 | 2020-12-09 | A three-pin shaft type universal joint processing fixing device |
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| CN (1) | CN214237708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123810A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Machining positioning device for three-pin shaft universal joint and fixing method thereof |
-
2020
- 2020-12-09 CN CN202022934453.5U patent/CN214237708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117123810A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Machining positioning device for three-pin shaft universal joint and fixing method thereof |
| CN117123810B (en) * | 2023-10-27 | 2024-02-20 | 万向钱潮股份公司 | Machining positioning device for three-pin shaft universal joint and fixing method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |