A test fixture for testing the angle of the outer groove of a ball cage universal coupling

Abstract

A test fixture for detecting the equally divided angle of the outer groove of a ball cage universal coupling, mainly used in the manufacture of ball cage universal couplings. The matching base is installed on the operating table; the bearing and the bearing seat are installed and connected together, the bearing seat is fixed on the operating table, the linear bearing is installed in the shaft sleeve, the steel ball bracket passes through the inner hole of the linear bearing, the spring is sleeved on the steel ball bracket, the steel ball is connected to the steel ball bracket with an adhesive, and the two end faces of the spring are pressed against the shaft sleeve and the steel ball bracket respectively; the shaft sleeve is installed in the fixed seat, the fixed seat passes through the bearing and is fixed with a locking nut, the connecting plate is installed in the bearing seat, the angle measuring instrument bracket is installed in the connecting plate, the connecting shaft is connected to the fixed seat, and the angle measuring instrument is connected to the angle measuring instrument bracket; the outer sleeve of the coupling is installed in the matching base, and the steel ball falls into any groove of the outer sleeve of the coupling. The present invention can quickly and accurately detect the equally divided angle of the groove, the measurement is fast and accurate, the operation is simple, the equipment investment cost is low, and it can effectively avoid frequent line stoppages, production accidents and other phenomena.

Description

Technical Field

[0001] The invention relates to the technical field of ball cage type universal coupling manufacturing, in particular to a checking fixture for detecting the equally divided angles of a groove of an outer sleeve of a ball cage type universal coupling. Background Art

[0002] The ball cage universal coupling is an important device in the field of mechanical transmission. It is used to connect two shafts or shafts and rotating parts to transmit torque and motion. There are several axially extending grooves evenly distributed on the inner and outer sleeves of the ball cage universal coupling (hereinafter referred to as the coupling). When the processed grooves are not equally divided, it will cause uneven force inside the coupling, causing abnormal wear of some grooves, which may cause high temperature, abnormal noise and other phenomena, affecting the service life of the coupling and increasing the frequency of line stoppage; in severe cases, it may cause the coupling to get stuck, lock and other phenomena, causing serious production accidents. If the coupling is used in a vehicle, the above phenomenon may even endanger the life safety of personnel. In the prior art, the measurement of the equally divided angle of the outer sleeve groove of the coupling mainly relies on a three-coordinate measuring instrument. The equipment is expensive and requires a high level of operator operation. Therefore, it is becoming more and more important to study a gauge for detecting the equally divided angle of the outer sleeve groove of the ball cage universal coupling. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a test fixture for detecting the equally divided angles of the outer sleeve groove of a ball cage universal coupling, so as to achieve the purpose of quickly and accurately detecting the equally divided angles of the outer sleeve groove of the coupling.

[0004] To achieve the above-mentioned purpose of the invention, the operating table of the present invention is fixed on a horizontal plane, and the matching base is installed on the operating table; the bearing and the bearing seat are installed and connected together, the bearing seat is fixed on the operating table, the linear bearing is installed in the shaft sleeve, the steel ball bracket passes through the inner hole of the linear bearing, the spring is sleeved on the steel ball bracket, the steel ball is connected to the steel ball bracket with an adhesive, and the two end surfaces of the spring are respectively pressed against the shaft sleeve and the steel ball bracket; the shaft sleeve is installed in the fixed seat, the fixed seat passes through the bearing and is fixed with a locking nut, the connecting plate is installed in the bearing seat, the angle measuring instrument bracket is installed in the connecting plate, the connecting shaft is connected to the fixed seat, and the angle measuring instrument is connected to the angle measuring instrument bracket; the coupling outer sleeve is installed in the matching base, and the steel ball falls into any groove of the coupling outer sleeve.

[0005] Furthermore, the bearing seat is positioned between the boss on the outer circle and the operating table, and is fixed to the middle of the operating table by two hexagon socket head screws; the bearings are two angular contact ball bearings installed in pairs, the outer ring of the bearing is positioned by the inner hole step of the bearing seat and the flange of the connecting plate, and the inner ring is positioned by the shaft shoulder of the fixed seat and the locking nut.

[0006] Furthermore, one end of the steel ball bracket is provided with a handle.

[0007] Furthermore, the outer ring of the linear bearing is interference fit with the inner hole of the sleeve, the shoulder of the linear bearing is positioned by one end of the sleeve, and the inner ring of the linear bearing is interference fit with the steel ball bracket; the middle part of the sleeve is installed in the fixed seat and fixed with a set screw.

[0008] Furthermore, the connection plate is fixedly connected to the bearing seat by means of three hexagon socket head screws, and the connection plate and the bearing seat are positioned by means of a boss on the outer circle of the connection plate and an inner hole of the bearing seat.

[0009] Furthermore, the angle measuring instrument bracket is fixed in the connecting plate by four hexagon socket head screws, and the angle measuring instrument bracket and the connecting plate are positioned by the boss on the outer circle of the angle measuring instrument bracket and the inner hole of the connecting plate.

[0010] Furthermore, the angle measuring instrument is connected to the middle of the bottom of the angle measuring instrument bracket by a hexagon socket head screw 5; the angle measuring instrument includes an encoder and an angle display.

[0011] Furthermore, the diameter of the steel ball is matched with the size of the groove of the coupling outer sleeve, and the plane end of the steel ball is firmly bonded to the steel ball bracket.

[0012] The coupling jacket is installed into the matching base. When installing, the steel ball is required to fall into any groove of the coupling jacket. The groove of the coupling jacket is elliptical. After the steel ball falls into the groove, there are two points of contact between them, so that the steel ball and the groove of the coupling jacket can be accurately positioned; the position of the steel ball holder is adjusted in the axial direction of the steel ball holder so that the steel ball contacts the groove of the coupling jacket. The operator holds the handle of the steel ball holder and rotates it along the fixed seat so that the steel ball falls into each groove of the coupling jacket in turn. The groove angle can be displayed on the angle display on the angle measuring instrument in a timely manner.

[0013] Compared with the prior art, the present invention has fast and accurate measurement, simple operation, and low equipment investment cost. It can effectively avoid frequent line stoppages and production accidents caused by uneven distribution of the outer groove of the ball cage universal coupling. At the same time, it can quickly and accurately detect the groove equal division angle. When deviation occurs in machining, it provides a reliable basis for equipment adjustment to ensure the normal progress of machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 yes Figure 1 Top view of the .

[0016] In the figure: 1. operating table; 2. matching base; 3. hexagon socket head screw 1; 4. coupling sleeve; 5. bearing seat; 6. hexagon socket head screw 2; 7. bearing; 8. steel ball bracket; 9. linear bearing; 10. bushing; 11. fixing seat; 12. set screw; 13. spring; 14. steel ball; 15. hexagon socket head screw 3; 16. connecting plate; 17. locking nut; 18. hexagon socket head screw 4; 19. angle measuring instrument bracket; 20. connecting shaft; 21. hexagon socket head screw 5; 22. angle measuring instrument. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2As shown, the operating table 1 of the present invention is fixed on a horizontal plane, and the matching base 2 is installed on the operating table 1 and fixed with a hexagon socket head screw 3; the bearing 7 is installed and connected with the bearing seat 5, and the bearing seat 5 is fixed on the operating table 1. The bearing seat 5 is positioned between the boss on the outer circle and the operating table 1, and is fixed to the middle of the operating table 1 with a hexagon socket head screw 6. The bearing 7 is two angular contact ball bearings installed in pairs, and the outer ring of the bearing 7 is positioned through the inner hole step of the bearing seat 5 and the flange of the connecting plate 16, and the inner ring is fixed through the shoulder of the fixing seat 11 and the locking nut 1 7 realizes positioning; the linear bearing 9 is installed in the sleeve 10, the outer ring of the linear bearing 9 is interference fit with the inner hole of the sleeve 10, the shoulder of the linear bearing 9 is positioned by one end of the sleeve 10, the inner ring of the linear bearing 9 is interference fit with the steel ball bracket 8, the middle part of the sleeve 10 is installed in the fixed seat 11 and fixed with the set screw 12; the steel ball bracket 8 passes through the inner hole of the linear bearing 9, the spring 13 is sleeved on the steel ball bracket 8, the steel ball 14 is connected to the steel ball bracket 8 with an adhesive, the two end faces of the spring 13 are pressed against the sleeve 10 and the steel ball bracket 8 respectively, and one end of the steel ball bracket 8 has a There is a handle, the diameter of the steel ball 14 is adapted to the size of the coupling coupling jacket groove, the steel ball 14 is machined into a plane of appropriate size by wire cutting or other mechanical processing methods, and the plane end of the steel ball 14 is firmly bonded to the steel ball bracket 8; the fixed seat 11 passes through the bearing 7 and is fixed with a locking nut 17, and the connecting plate 16 is installed in the bearing seat 5, and the connecting plate 16 is connected and fixed to the bearing seat 5 by a hexagon socket cylindrical head screw 15, and the connecting plate 16 and the bearing seat 5 are positioned by the boss on the outer circle of the connecting plate 16 and the inner hole of the bearing seat 5; Angle measurement The measuring instrument bracket 19 is connected and fixed in the connecting disk 16 by a four-hexagon socket head screw 18, and the angle measuring instrument bracket 19 and the connecting disk 16 are positioned by the boss on the outer circle of the angle measuring instrument bracket 19 and the inner hole of the connecting disk 16; the connecting shaft 20 is connected to the fixing seat 11, and the encoder of the angle measuring instrument 22 is connected to the middle of the bottom of the angle measuring instrument bracket 19 by a five-hexagon socket head screw 21. The model of the angle measuring instrument 22 is SF9648J-X / K8026J-7200BM-C526, which includes an encoder and an angle display.

[0018] The coupling jacket 4 is installed into the matching base 2. During the installation, the steel ball 14 is required to fall into any groove of the coupling jacket 4, wherein the groove of the coupling jacket 4 is elliptical. After the steel ball 14 falls into the groove, there are two points of contact therebetween, so that the steel ball 14 and the groove of the coupling jacket 4 can be accurately positioned; the position of the steel ball holder 8 is adjusted in the axial direction of the steel ball holder 8 so that the steel ball 14 contacts with the groove of the coupling jacket 4. The operator holds the handle of the steel ball holder 8 and rotates it along the fixed seat 11 so that the steel ball 14 falls into each groove of the coupling jacket 4 in turn, and the groove angle can be displayed on the angle display on the angle measuring instrument 22 in a timely manner.

Claims

1. A test fixture for testing the equally divided angles of the outer raceway of a ball cage universal coupling, characterized in that: The operating table (1) is fixed on a horizontal plane, and the matching base (2) is installed on the operating table (1); the bearing (7) and the bearing seat (5) are installed and connected together, the bearing seat (5) is fixed on the operating table (1), the linear bearing (9) is installed in the shaft sleeve (10), the steel ball bracket (8) passes through the inner hole of the linear bearing (9), the spring (13) is sleeved on the steel ball bracket (8), the steel ball (14) is connected to the steel ball bracket (8) by an adhesive, and the two end surfaces of the spring (13) are pressed against the shaft sleeve (10) and the steel ball bracket (8) respectively. 8); the sleeve (10) is installed in the fixed seat (11), the fixed seat (11) passes through the bearing (7) and is fixed with a locking nut (17); the connecting plate (16) is installed in the bearing seat (5), the angle measuring instrument bracket (19) is installed in the connecting plate (16), the connecting shaft (20) is connected to the fixed seat (11), and the angle measuring instrument (22) is connected to the angle measuring instrument bracket (19); the coupling outer sleeve (4) is installed in the matching base (2), and the steel ball (14) falls into any groove of the coupling outer sleeve (4).

2. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1 is characterized in that: The bearing seat (5) is positioned between the boss on the outer circle and the operating table (1), and is fixed to the middle of the operating table (1) by two hexagon socket head screws (6); the bearing (7) is two angular contact ball bearings installed in pairs, the outer ring of the bearing (7) is positioned by the inner hole step of the bearing seat (5) and the flange of the connecting plate (16), and the inner ring is positioned by the shaft shoulder of the fixing seat (11) and the locking nut (17).

3. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: One end of the steel ball bracket (8) is provided with a handle.

4. The inspection tool for detecting the equally divided angles of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: The outer ring of the linear bearing (9) is interference-fitted with the inner hole of the shaft sleeve (10); the shaft shoulder of the linear bearing (9) is positioned by one end of the shaft sleeve (10); the inner ring of the linear bearing (9) is interference-fitted with the steel ball bracket (8); the middle part of the shaft sleeve (10) is mounted in the fixing seat (11) and fixed by a set screw (12).

5. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: The connecting plate (16) is connected and fixed to the bearing seat (5) by means of three hexagon socket head screws (15), and the connecting plate (16) and the bearing seat (5) are positioned by means of a boss on the outer circle of the connecting plate (16) and an inner hole of the bearing seat (5).

6. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: The angle measuring instrument bracket (19) is connected and fixed in the connecting plate (16) by means of four hexagon socket head screws (18), and the angle measuring instrument bracket (19) and the connecting plate (16) are positioned by means of a boss on the outer circle of the angle measuring instrument bracket (19) and an inner hole of the connecting plate (16).

7. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: The angle measuring instrument (22) is connected to the middle of the bottom of the angle measuring instrument bracket (19) by means of a hexagon socket head screw (21); the angle measuring instrument (22) comprises an encoder and an angle display.

8. The inspection tool for detecting the equally divided angle of the outer sleeve groove of a ball cage universal coupling according to claim 1, characterized in that: The diameter of the steel ball (14) is matched to the size of the groove of the coupling outer sleeve, and the flat end of the steel ball (14) is firmly bonded to the steel ball bracket (8).

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