Press fitting clamp

Abstract

The press-fitting clamp comprises a fixing base, a supporting frame, a positioning column and a positioning block, the supporting frame is detachably connected to the upper end of the fixing base, a containing groove is formed in the lower end of the supporting frame, a first positioning groove is formed in the groove bottom of the containing groove and penetrates through the supporting frame in the vertical direction, and the first positioning groove is arranged to be a tooth correcting groove matched with a main gear; a second positioning groove is formed in the upper end of the fixing base, the positioning column is slidably connected to the groove wall of the second positioning groove and used for sleeving the driven gear, the positioning block is arranged in the containing groove and fixedly connected to the upper end of the fixing base, and a third positioning groove is formed in the end, facing the second positioning groove, of the positioning block; the third positioning groove is arranged to be a helical tooth groove matched with the driven gear. The auxiliary gear is arranged on the periphery of the positioning column in a sleeving mode, oblique teeth of the auxiliary gear are embedded into the third positioning groove, the supporting frame is installed on the fixing base, the main gear is embedded into the first positioning groove, and the gear shaft is pressed, so that the main gear and the auxiliary gear are assembled, and the production quality is improved.

Description

Technical Field

[0001] The present application relates to the field of clamps, and in particular to a press-fit clamp. Background Art

[0002] Gear assembly refers to all components related to gears, and gear assemblies are usually composed of pairs of gears that drive or are driven. Gear assemblies are used to provide rotational force between the driving gear and the driven gear of the assembly. When assembling, the distance ratio should be considered and should be kept fixed to ensure that the assembly speed is fixed.

[0003] A one-slave-two-main component is a gear assembly, which consists of a slave gear and a master gear. The slave gear is coaxially provided with a mounting port, and the main gear is coaxially fixedly connected with a gear shaft. The gear shaft is pressed into the mounting port, and the gear shaft and the mounting port have an interference fit. The teeth of the slave gear are set as helical teeth, and the teeth of the master gear are set as spur teeth. The helical teeth and the spur teeth are required to be set correspondingly to realize the assembly of the one-slave-two-main component.

[0004] However, during assembly, it is difficult to match the helical teeth with the spur teeth, and once the gear shaft is pressed into the installation opening, it is difficult to remove, resulting in low production quality of this one-from-two main assembly. Utility Model Content

[0005] In order to improve production quality, the present application provides a press-fit fixture.

[0006] The present application provides a press-fit fixture that adopts the following technical solution:

[0007] A press-fitting fixture comprises a fixed seat, a support frame, a positioning column and a positioning block, the support frame is detachably connected to the upper end of the fixed seat, the support frame is provided with a receiving groove at one end facing the fixed seat, the groove bottom of the receiving groove is provided with a first positioning groove, the first positioning groove vertically penetrates the support frame, the first positioning groove is set as a spur tooth groove matching with a main gear, the upper end of the fixed seat is provided with a second positioning groove, the positioning column is slidably connected to the groove wall of the second positioning groove, the positioning column is coaxially arranged with the first positioning groove, the positioning column is used for the slave gear to be sleeved, the positioning block is arranged in the receiving groove, the positioning block is fixedly connected to the upper end of the fixed seat, the positioning block is provided with a third positioning groove at one end facing the second positioning groove, and the third positioning groove is set as a helical tooth groove matching with the slave gear.

[0008] By adopting the above technical solution, the slave gear is sleeved on the outer periphery of the positioning column, and the helical teeth of the slave gear are embedded in the third positioning groove to realize the positioning of the slave gear. The support frame is installed on the fixed seat, and the master gear is embedded in the first positioning groove to realize the positioning of the master gear. The gear shaft is manually pressed to complete the assembly of the master gear and the slave gear, thereby improving the production quality.

[0009] Preferably, a guide groove is provided at the bottom of the second positioning groove, the diameter of the guide groove is larger than the diameter of the second positioning groove, and a ring body is coaxially fixedly connected to the outer wall of the positioning column, and the ring body is slidably connected to the groove wall of the guide groove.

[0010] By adopting the above technical solution, the guide groove guides the sliding of the ring body, thereby guiding the sliding of the guide column. The guide column is convenient for installing the slave gear. When the gear shaft extends into the installation opening, the guide column slides downward to avoid it, which is convenient for assembling the main gear and the slave gear and improving production efficiency.

[0011] Preferably, it further comprises a spring, wherein the upper end of the spring is connected to the lower end of the ring body, and the lower end of the spring is connected to the bottom of the guide groove.

[0012] By adopting the above technical solution, the spring supports the guide column, and the guide column extends out of the notch of the second positioning groove, which is convenient for positioning the installation of the slave gear. When the gear shaft is pressed into the installation opening, the spring is compressed and the guide column avoids the installation of the gear shaft. The use of the spring makes it easy to control the sliding of the guide column and improve the production quality.

[0013] Preferably, it also includes a pressure plate, the lower end of the fixing seat is provided with a mounting groove, the bottom of the mounting groove is connected to the guide groove, the pressure plate is detachably connected to the bottom of the mounting groove, the pressure plate covers the guide groove, and the lower end of the spring is connected to the pressure plate.

[0014] By adopting the above technical solution, it is easy to assemble the fixture. After removing the pressure plate, the guide column and the spring can be installed in the guide groove in sequence. When the parts are damaged, they are easy to replace, thereby extending the service life of the press-fit fixture.

[0015] Preferably, it further comprises a screw, the pressure plate is provided with a fixing port, the bottom of the installation slot is provided with a connecting port, and the screw passes through the fixing port and is threadedly connected to the inner wall of the connecting port.

[0016] By adopting the above technical solution, the screws enable the pressing plate to be firmly fixed on the fixing seat, and the pressing plate is easy to install.

[0017] Preferably, it further comprises an axle pin, the lower end of which is fixedly connected to the upper end of the pressure plate, the upper end of which extends into the guide groove, and the spring sleeve is arranged on the outer periphery of the axle pin.

[0018] By adopting the above technical solution, the shaft pin positions the installation of the spring, making the spring less likely to twist and deform during use, thereby extending the service life of the spring. At the same time, the shaft pin can limit the sliding distance of the positioning column, so that the gear shaft is installed in the correct position, thereby improving production quality.

[0019] Preferably, it also includes a positioning pin, the lower end of the support frame is provided with a first limiting groove, the first limiting groove is arranged on the outer periphery of the accommodating groove, the upper end of the fixed seat is provided with a second limiting groove, the second limiting groove is arranged opposite to the first limiting groove, the upper end of the positioning pin is embedded in the first limiting groove, and the lower end of the positioning pin is embedded in the second limiting groove.

[0020] By adopting the above technical solution, the positioning pins are used to position the support frame, which makes it easy to install the support frame, and makes it easy to disassemble the support frame and install the gear, thereby improving production efficiency.

[0021] Preferably, there are multiple first limit grooves, and the multiple first limit grooves are evenly spaced around the axis of the accommodating groove; there are multiple second limit grooves, and the second limit grooves are arranged one-to-one with the first limit grooves; there are multiple positioning pins, and the positioning pins are arranged one-to-one with the second limit grooves.

[0022] By adopting the above technical solution, multiple positioning pins improve the stability of the support frame.

[0023] Preferably, it further comprises a pressing sleeve, which is arranged above the support frame, and is used to be sleeved on the outer circumference of the gear shaft, and the diameter of the pressing sleeve is larger than the diameter of the first positioning groove.

[0024] By adopting the above technical solution, the use of a pressing sleeve makes it easier for the user to apply force to the gear shaft and press the gear shaft, so that the gear shaft and the installation opening have an interference fit, thereby improving production quality.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The slave gear is sleeved on the outer periphery of the positioning column, and the helical teeth of the slave gear are embedded in the third positioning groove to realize the positioning of the slave gear. The support frame is installed on the fixed seat, and the master gear is embedded in the first positioning groove to realize the positioning of the master gear. The gear shaft is manually pressed to complete the assembly of the master gear and the slave gear, thereby improving the production quality;

[0027] 2. The spring supports the guide column, which extends out of the notch of the second positioning groove, so as to facilitate the positioning of the installation of the slave gear. When the gear shaft is pressed into the installation opening, the spring is compressed, and the guide column avoids the installation of the gear shaft. The use of the spring facilitates the control of the sliding of the guide column and improves the production quality.

[0028] 3. The shaft pin positions the installation of the spring, making it less likely for the spring to be twisted or deformed during use, thereby extending the service life of the spring. At the same time, the shaft pin can limit the distance that the positioning column slides down, so that the gear shaft is installed in the correct position, thereby improving production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1A cross-sectional view of a press-fit fixture.

[0030] Explanation of the accompanying drawings: 1. Fixed seat; 11. Second positioning groove; 12. Guide groove; 13. Mounting groove; 14. Connecting port; 15. Second limiting groove; 2. Support frame; 21. Accommodating groove; 22. First positioning groove; 23. First limiting groove; 3. Positioning column; 31. Ring body; 32. Limiting port; 4. Positioning block; 41. Third positioning groove; 5. Pressing plate; 51. Fixing port; 6. Screw; 7. Axle pin; 8. Spring; 9. Positioning pin; 10. Pressing sleeve. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 This application is described in further detail.

[0032] The present application embodiment discloses a press-fit fixture. Figure 1 A press-fitting fixture includes a fixing seat 1, a supporting frame 2, a positioning column 3, a positioning block 4, a pressing plate 5, a screw 6, an axle pin 7, a spring 8, a positioning pin 9 and a pressing sleeve 10.

[0033] The support frame 2 is detachably connected to the upper end of the fixing seat 1, and a receiving groove 21 is coaxially provided at the lower end of the support frame 2. A first positioning groove 22 is coaxially provided at the bottom of the receiving groove 21. The first positioning groove 22 vertically penetrates the support frame 2, and the first positioning groove 22 is set as a spur groove that cooperates with the main gear.

[0034] Reference Figure 1 The upper end of the fixed seat 1 is coaxially provided with a second positioning groove 11, and the second positioning groove 11 is coaxially arranged with the first positioning groove 22. The groove bottom of the second positioning groove 11 is coaxially provided with a guide groove 12, and the diameter of the guide groove 12 is greater than the diameter of the second positioning groove 11. The outer wall of the positioning column 3 is slidably connected to the groove wall of the second positioning groove 11, and the diameter of the positioning column 3 is equal to the diameter of the second positioning groove 11. The outer wall of the positioning column 3 is coaxially fixedly connected with a ring body 31, and the outer wall of the ring body 31 is slidably connected to the groove wall of the guide groove 12, and the diameter of the ring body 31 is equal to the diameter of the guide groove 12. When the upward end surface of the ring body 31 abuts against the downward groove wall of the guide groove 12, the upper end of the positioning column 3 extends out of the second positioning groove 11, and the positioning column 3 is used for the slave gear to be sleeved, and the diameter of the positioning column 3 is equal to the diameter of the installation opening of the slave gear. The positioning column 3 is coaxially provided with a limit opening 32, and the lower end of the gear shaft is fixedly connected to a limit block, and the limit opening 32 is used for the limit block to extend into.

[0035] The positioning block 4 is fixedly connected to the upper end of the fixing seat 1, and is arranged in the accommodating groove 21. The positioning block 4 is arranged on the outer periphery of the positioning column 3. The end of the positioning block 4 facing the positioning column 3 is provided with a third positioning groove 41, and the third positioning groove 41 is set as a helical gear that cooperates with the slave gear.

[0036] Reference Figure 1The lower end of the fixing seat 1 is coaxially provided with a mounting groove 13, the bottom of the mounting groove 13 is connected to the guide groove 12, the pressing plate 5 is embedded in the mounting groove 13, the pressing plate 5 is used to cover the guide groove 12, the pressing plate 5 is provided with a fixing port 51, the fixing port 51 vertically penetrates the pressing plate 5, the bottom of the mounting groove 13 is provided with a connecting port 14, the connecting port 14 is coaxially arranged with the fixing port 51, and the screw 6 passes through the fixing port 51 and is threadedly connected to the inner wall of the connecting port 14. There are multiple fixing ports 51, and the multiple fixing ports 51 are evenly spaced around the axis of the guide groove 12, there are multiple connecting ports 14, and the connecting ports 14 are arranged one-to-one with the fixing ports 51, and there are multiple screws 6, and the screws 6 are arranged one-to-one with the connecting ports 14.

[0037] The lower end of the shaft pin 7 is fixedly connected to the upper end of the pressure plate 5, and the upper end of the shaft pin 7 extends into the guide groove 12. The shaft pin 7 is coaxially arranged with the guide groove 12. The diameter of the shaft pin 7 is larger than the diameter of the limit opening 32. The upper end of the shaft pin 7 is used to abut the lower end of the ring body 31. The spring 8 is sleeved on the outer periphery of the shaft pin 7. The lower end of the spring 8 abuts the pressure plate 5, and the upper end of the spring 8 abuts the ring body 31.

[0038] Reference Figure 1 A first limiting groove 23 is provided at the lower end of the support frame 2, and the first limiting groove 23 is provided on the outer periphery of the accommodating groove 21. There are two first limiting grooves 23, and the two first limiting grooves 23 are evenly spaced around the axis of the accommodating groove 21. A second limiting groove 15 is provided at the upper end of the fixed seat 1, and the second limiting groove 15 is coaxially arranged with the first limiting groove 23. There are two second limiting grooves 15, and the second limiting groove 15 is arranged one-to-one with the first limiting groove 23. The lower end of the locating pin 9 is embedded in the second limiting groove 15, and the upper end of the locating pin 9 is embedded in the first limiting groove 23. There are two locating pins 9, and the locating pins 9 are arranged one-to-one with the second limiting groove 15.

[0039] The pressing sleeve 10 is arranged above the support frame 2 . The pressing sleeve 10 is used to be sleeved on the outer circumference of the gear shaft. The diameter of the pressing sleeve 10 is greater than the diameter of the first positioning groove 22 . The pressing sleeve 10 is set as a rubber sleeve.

[0040] The implementation principle of a press-fitting fixture in an embodiment of the present application is as follows: the slave gear is sleeved on the outer periphery of the positioning column 3, the helical teeth of the slave gear are embedded in the third positioning groove 41 to realize the positioning of the slave gear, the support frame 2 is installed on the fixed seat 1, the master gear is embedded in the first positioning groove 22 to realize the positioning of the master gear, the press sleeve 10 is sleeved on the outer periphery of the gear shaft, the press sleeve 10 is manually pressed, the positioning column 3 slides downward, and the spring 8 contracts, so that the master gear and the slave gear are assembled to improve the production quality.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A press-fitting fixture, characterized in that: The invention comprises a fixing seat (1), a support frame (2), a positioning column (3) and a positioning block (4), wherein the support frame (2) is detachably connected to the upper end of the fixing seat (1), an end of the support frame (2) facing the fixing seat (1) is provided with a receiving groove (21), a bottom of the receiving groove (21) is provided with a first positioning groove (22), the first positioning groove (22) vertically penetrates the support frame (2), the first positioning groove (22) is set as a spur groove matched with a main gear, and the upper end of the fixing seat (1) is provided with a second positioning groove (21). The second positioning groove (11) is provided with a positioning column (3) which is slidably connected to the groove wall of the second positioning groove (11). The positioning column (3) is coaxially arranged with the first positioning groove (22). The positioning column (3) is used for being sleeved by the slave gear. The positioning block (4) is arranged in the accommodating groove (21). The positioning block (4) is fixedly connected to the upper end of the fixing seat (1). The positioning block (4) is provided with a third positioning groove (41) at one end facing the second positioning groove (11). The third positioning groove (41) is arranged as a helical tooth groove which cooperates with the slave gear.

2. A press-fitting fixture according to claim 1, characterized in that: A guide groove (12) is provided at the bottom of the second positioning groove (11), the diameter of the guide groove (12) being larger than the diameter of the second positioning groove (11), and a ring body (31) is coaxially fixedly connected to the outer wall of the positioning column (3), and the ring body (31) is slidably connected to the groove wall of the guide groove (12).

3. A press-fitting fixture according to claim 2, characterized in that: It also includes a spring (8), the upper end of the spring (8) being connected to the lower end of the ring body (31), and the lower end of the spring (8) being connected to the bottom of the guide groove (12).

4. A press-fitting fixture according to claim 3, characterized in that: It also includes a pressing plate (5), a mounting groove (13) being provided at the lower end of the fixing seat (1), the bottom of the mounting groove (13) being connected to the guide groove (12), the pressing plate (5) being detachably connected to the bottom of the mounting groove (13), the pressing plate (5) covering the guide groove (12), and the lower end of the spring (8) being connected to the pressing plate (5).

5. A press-fitting fixture according to claim 4, characterized in that: It also includes a screw (6), the pressure plate (5) is provided with a fixing opening (51), the bottom of the installation groove (13) is provided with a connecting opening (14), and the screw (6) passes through the fixing opening (51) and is threadedly connected to the inner wall of the connecting opening (14).

6. A press-fitting fixture according to claim 4, characterized in that: It also includes an axle pin (7), the lower end of which is fixedly connected to the upper end of the pressure plate (5), the upper end of which extends into the guide groove (12), and the spring (8) is sleeved on the outer periphery of the axle pin (7).

7. A press-fitting fixture according to claim 1, characterized in that: The supporting frame (2) further comprises a positioning pin (9), a first limiting groove (23) being provided at the lower end of the supporting frame (2), the first limiting groove (23) being provided at the outer periphery of the containing groove (21), a second limiting groove (15) being provided at the upper end of the fixing seat (1), the second limiting groove (15) being provided opposite to the first limiting groove (23), the upper end of the positioning pin (9) being embedded in the first limiting groove (23), and the lower end of the positioning pin (9) being embedded in the second limiting groove (15).

8. A press-fitting fixture according to claim 7, characterized in that: A plurality of the first limiting grooves (23) are provided, and the plurality of the first limiting grooves (23) are evenly spaced around the axis of the accommodating groove (21); a plurality of the second limiting grooves (15) are provided, and the second limiting grooves (15) are arranged in a one-to-one correspondence with the first limiting grooves (23); a plurality of the positioning pins (9) are provided, and the positioning pins (9) are arranged in a one-to-one correspondence with the second limiting grooves (15).

9. A press-fitting fixture according to claim 1, characterized in that: It also comprises a pressing sleeve (10), wherein the pressing sleeve (10) is arranged above the support frame (2), and the pressing sleeve (10) is used to be sleeved on the outer circumference of the gear shaft, and the diameter of the pressing sleeve (10) is greater than the diameter of the first positioning groove (22).

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