Press fitting clamp

Abstract

The utility model relates to the technical field of mechanical clamps, in particular to a press fitting clamp which comprises a base, a fixing seat is fixedly connected to the upper surface of the base, a lower positioning seat is fixedly connected to the interior of the upper end of the fixing seat, a lower end cover is fixedly connected to the side surface of the lower positioning seat, and a lower positioning pin is movably connected to the interior of the lower positioning seat. A lower compression spring is fixedly connected to the surface of the lower positioning pin, a positioning disc is arranged above the base, a movable groove is formed in the outer surface of the positioning disc, an upper positioning seat is fixedly connected to the interior of the upper end of the positioning disc, an upper end cover is fixedly connected to the side surface of the upper positioning seat, and an upper positioning pin is movably connected to the interior of the upper positioning seat; the surface of the upper positioning pin is fixedly connected with an upper compression spring, and the left end of the upper compression spring is fixedly connected with the right side face of the upper end cover. According to the tooth aligning device, tooth aligning operation of two workpieces can be completed quickly and conveniently, time and labor are saved, working efficiency is greatly improved, and press fitting of the workpieces is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical clamps, in particular to a press-fit clamp. Background Art

[0002] A press-fit fixture is a device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc.

[0003] In the current existing technology, due to the requirements of the processing technology, the teeth of the two workpieces need to be aligned when they are press-fitted. During the alignment, the processing personnel usually need to manually align the two workpieces, which makes the press-fitting process of the workpieces time-consuming and labor-intensive, greatly reduces work efficiency, and is inconvenient for press-fitting the workpieces. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a press-fitting fixture.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a press-fitting fixture, including a base, the upper surface of the base is fixedly connected to a fixing seat, the upper end of the fixing seat is fixedly connected to a lower positioning seat, the side surface of the lower positioning seat is fixedly connected to a lower end cover, the lower positioning seat is internally movably connected to a lower positioning pin, the left end of the lower positioning pin passes through the interior of the lower positioning seat and extends to the outside of the lower end cover, the surface of the lower positioning pin is fixedly connected to a lower compression spring, the left end of the lower compression spring is fixedly connected to the right side surface of the lower end cover, and the A positioning plate is provided above the base, and a movable groove is provided on the outer surface of the positioning plate, the right end of the lower positioning pin passes through the interior of the movable groove and extends to the interior of the positioning plate, the upper end of the positioning plate is fixedly connected to an upper positioning seat, the side surface of the upper positioning seat is fixedly connected to an upper end cover, the interior of the upper positioning seat is movably connected to an upper positioning pin, the left end of the upper positioning pin passes through the interior of the upper positioning seat and extends to the outer side of the upper end cover, the surface of the upper positioning pin is fixedly connected to an upper compression spring, and the left end of the upper compression spring is fixedly connected to the right side surface of the upper end cover.

[0006] As a further description of the above technical solution:

[0007] A fixing rod is fixedly connected to the upper surface of the base, and the upper end of the fixing rod passes through the surface of the positioning plate and extends to the top of the positioning plate. There are four fixing rods, and the outer surfaces of the four fixing rods are fixedly connected to fixing plates. The upper surface of the fixing plate is fixedly connected to a spring, and the upper end of the spring is fixedly connected to the surface of the positioning plate.

[0008] As a further description of the above technical solution:

[0009] A sleeve is fixedly connected to the surface of the base, a square groove is provided on the outer surface of the sleeve, the right end of the lower positioning pin is located inside the square groove, and a threaded hole is provided on the outer surface of the sleeve, and the number of the threaded holes is two.

[0010] As a further description of the above technical solution:

[0011] A clamping block is movably connected inside the movable groove, a fixing bolt is threadedly connected inside the clamping block, and one end of the fixing bolt is threadedly connected to the threaded hole.

[0012] As a further description of the above technical solution:

[0013] A first workpiece is movably connected inside the base, and an outer surface of the first workpiece is in contact with an inner surface of the sleeve.

[0014] As a further description of the above technical solution:

[0015] The upper end of the first workpiece is movably connected to a guide cylinder, the outer surface of the guide cylinder is movably connected to a second workpiece, and the upper surface of the second workpiece is movably connected to a pressing head.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, this press-fitting fixture, through the lower positioning pin, lower compression spring, positioning plate, movable groove, upper positioning pin and upper compression spring, when performing press-fitting, first put the first workpiece into the positioning plate to connect it with the base, pull the lower positioning pin during the process of placing the first workpiece, and rotate the first workpiece after placement so that the lower positioning pin is aligned with the teeth on the first workpiece. At this time, let go, and under the action of the lower compression spring, push the lower positioning pin to clamp into the root position of the teeth on the first workpiece to fix the position of the first workpiece, then place the second workpiece, and operate the upper positioning pin in the same way to fix it. The tooth root position of the tooth on the second workpiece is inserted to fix the position of the second workpiece to complete the tooth alignment operation. Compared with the current existing technology, due to the requirements of the processing technology, the teeth of the two workpieces need to be aligned when the two workpieces are press-fitted, and the processing personnel usually need to manually align the two workpieces during the alignment, which makes the press-fitting process of the workpieces time-consuming and labor-intensive, greatly reduces the work efficiency, and is not convenient for press-fitting the workpieces. This press-fitting fixture can quickly and conveniently complete the tooth alignment operation of the two workpieces, save time and labor, greatly improve the work efficiency, and facilitate the press-fitting of the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the overall structure of a press-fitting fixture proposed by the utility model from a first perspective;

[0019] Figure 2 A schematic diagram of the overall structure of a press-fit fixture proposed by the utility model from a second viewing angle;

[0020] Figure 3 A half-section schematic diagram of a press-fit fixture proposed by the utility model;

[0021] Figure 4 A press-fit fixture proposed by the utility model Figure 3 A magnified view of the structure at center;

[0022] Figure 5 A press-fit fixture proposed by the utility model Figure 3 A magnified view of the structure at B in the middle;

[0023] Figure 6 A press-fit fixture proposed by the utility model Figure 3 A magnified view of the structure at C in the middle;

[0024] Figure 7 A press-fit fixture proposed by the utility model Figure 3 A magnified view of the structure at D in the middle;

[0025] Figure 8 A press-fit fixture proposed by the utility model Figure 3 Enlarged view of the structure at point E in the middle.

[0026] Legend:

[0027] 1. Base; 2. Fixed seat; 3. Lower positioning seat; 4. Lower end cover; 5. Lower positioning pin; 6. Lower compression spring; 7. Positioning plate; 8. Movable groove; 9. Upper positioning seat; 10. Upper end cover; 11. Upper positioning pin; 12. Upper compression spring; 13. Fixed rod; 14. Fixed plate; 15. Spring; 16. Sleeve; 17. Square groove; 18. Threaded hole; 19. Block; 20. Fixing bolt; 21. First workpiece; 22. Guide cylinder; 23. Second workpiece; 24. Press head. DETAILED DESCRIPTION

[0028] Reference Figure 1-8The utility model provides a press-fitting fixture: it includes a base 1, the upper surface of the base 1 is fixedly connected with a fixed seat 2, the fixed seat 2 carries a lower positioning seat 3, so that the lower positioning pin 5 can correspond to the tooth height of the first workpiece 21, so that the lower positioning pin 5 is convenient for being inserted into the root position of the tooth on the first workpiece 21, the upper end of the fixed seat 2 is fixedly connected with the lower positioning seat 3, the side surface of the lower positioning seat 3 is fixedly connected with a lower end cover 4, the lower end cover 4 can prevent the lower compression spring 6 from detaching, the lower positioning seat 3 is movably connected with the lower positioning pin 5 inside, and the right end of the lower positioning pin 5 is fixedly connected with a lower positioning block, so that the lower positioning pin 5 is convenient for being inserted into the tooth root of the tooth on the first workpiece 21, and the lower positioning pin 5 is convenient for being inserted into the tooth root of the tooth on the first workpiece 21. The left end extends through the interior of the lower positioning seat 3 to the outside of the lower end cover 4, the left end of the lower positioning pin 5 is fixedly connected to a lower handle, and the lower positioning pin 5 can be easily pulled through the lower handle. The surface of the lower positioning pin 5 is fixedly connected to a lower compression spring 6, and the left end of the lower compression spring 6 is fixedly connected to the right side of the lower end cover 4. A positioning plate 7 is arranged above the base 1, and a movable groove 8 is provided on the outer surface of the positioning plate 7. The right end of the lower positioning pin 5 passes through the interior of the movable groove 8 and extends to the interior of the positioning plate 7. The movable groove 8 does not affect the positioning of the lower positioning pin 5 when the positioning plate 7 is lowered. The upper end of the positioning plate 7 is fixedly connected to an upper positioning seat 9, and the side surface of the upper positioning seat 9 is fixedly connected to the upper end The cover 10, the upper end cover 10 can prevent the upper compression spring 12 from detaching, the upper positioning seat 9 is movably connected with the upper positioning pin 11 inside, the right end of the upper positioning pin 11 is fixedly connected with the upper positioning block, which is convenient for the upper positioning pin 11 to be stuck in the tooth root of the upper tooth of the second workpiece 23, the left end of the upper positioning pin 11 passes through the interior of the upper positioning seat 9 and extends to the outside of the upper end cover 10, the left end of the upper positioning pin 11 is fixedly connected with the upper handle, which is convenient for pulling the upper positioning pin 11 to move, the surface of the upper positioning pin 11 is fixedly connected with the upper compression spring 12, and the left end of the upper compression spring 12 is fixedly connected to the right side of the upper end cover 10. When pressing, first put the first workpiece 21 into the positioning disk 7, so that It is connected to the base 1. During the process of placing the first workpiece 21, the lower positioning pin 5 is pulled, and the first workpiece 21 is rotated after placement to align the lower positioning pin 5 with the teeth on the first workpiece 21. At this time, let go, and under the action of the lower compression spring 6, the lower positioning pin 5 is pushed to snap into the root position of the teeth on the first workpiece 21 to fix the position of the first workpiece 21. Then the second workpiece 23 is placed, and the upper positioning pin 11 is operated in the same way to snap into the root position of the teeth on the second workpiece 23 to fix the position of the second workpiece 23, so that the tooth position of the second workpiece 23 is aligned with the tooth position of the first workpiece 21, that is, the tooth alignment operation is completed, and the subsequent pressing work can be completed at this time.

[0029] A fixing rod 13 is fixedly connected to the upper surface of the base 1, and the upper end of the fixing rod 13 passes through the surface of the positioning plate 7 and extends to the top of the positioning plate 7. The fixing rod 13 and the positioning plate 7 are movably connected, so that the fixing rod 13 can only limit the rotation of the positioning plate 7 but not limit the up and down movement of the positioning plate 7. When the positioning plate 7 descends, the fixing rod 13 remains stationary. There are four fixing rods 13, and the outer surfaces of the four fixing rods 13 are fixedly connected to fixing plates 14. The upper surface of the fixing plate 14 is fixedly connected to a spring 15, and the upper end of the spring 15 is fixedly connected to the surface of the positioning plate 7. During press-fitting, the positioning plate 7 is driven by the downward movement of the second workpiece 23 and moves downward together. The spring 15 is compressed by force. After the press-fitting is completed, the hand is released, and the spring 15 rebounds, pushing the positioning plate 7 to rise and return to its original position.

[0030] A sleeve 16 is fixedly connected to the surface of the base 1. The sleeve 16 limits the position of the first workpiece 21 after it is placed, so that the first workpiece 21 is maintained at the center position of the base 1. A square groove 17 is provided on the outer surface of the sleeve 16. The right end of the lower positioning pin 5 is located inside the square groove 17. The square groove 17 is convenient for the lower positioning pin 5 to pass through, thereby limiting and fixing the first workpiece 21. A threaded hole 18 is provided on the outer surface of the sleeve 16. There are two threaded holes 18. A clamping block 19 is movably connected inside the movable groove 8. The internal thread of the clamping block 19 is connected with a fixing bolt 20. One end of the fixing bolt 20 is threadedly connected to the threaded hole 18. The clamping block 19 is placed in the right movable groove 8, and then the clamping block 19 is fixed to the sleeve 16 by two fixing bolts 20, so that the sleeve 16 is restricted and fixed by the clamping block 19 and the movable groove 8, so that the square groove 17 corresponds to the left movable groove 8, which is convenient for the lower positioning pin 5 to pass through the movable groove 8 and the square groove 17.

[0031] The base 1 is movably connected to the inside of the first workpiece 21, and the outer surface of the first workpiece 21 fits with the inner surface of the sleeve 16. The upper end of the first workpiece 21 is movably connected to a guide cylinder 22, and the outer surface of the guide cylinder 22 is movably connected to the second workpiece 23. The upper surface of the second workpiece 23 is movably connected to a pressing head 24. After the first workpiece 21 is placed, the guide cylinder 22 is placed on the first workpiece 21, so that the inner surface of the second workpiece 23 is aligned with the outer surface of the first workpiece 21, which is convenient for pressing the second workpiece 23. The pressing head 24 is pressed downward to move the second workpiece 23 downward to complete the pressing with the first workpiece 21.

[0032] Working principle: First, place the first workpiece 21 into the positioning plate 7 so that the outer surface of the first workpiece 21 fits with the inner surface of the sleeve 16. Pull the lower positioning pin 5 during the process of placing the first workpiece 21, and rotate the first workpiece 21 after placement so that the lower positioning pin 5 is aligned with the teeth on the first workpiece 21. At this time, let go. Under the action of the lower compression spring 6, the lower positioning pin 5 is pushed into the root position of the teeth on the first workpiece 21 to fix the position of the first workpiece 21. Then, place the guide cylinder 22, the second workpiece 23 and the pressure head 24 in sequence. When the second workpiece 23 is assembled, the upper positioning pin 11 is operated in the same way to make it fit into the root position of the tooth on the second workpiece 23, and the position of the second workpiece 23 is fixed, so that the tooth position of the second workpiece 23 is aligned with the tooth position of the first workpiece 21, that is, the tooth alignment operation is completed, and then the pressing head 24 is pressed downward to move the second workpiece 23 downward to complete the press-fitting with the first workpiece 21. The positioning plate 7 is driven by the downward movement of the second workpiece 23 and moves downward together, and the spring 15 is compressed. After the press-fitting is completed, let go, the spring 15 rebounds, and pushes the positioning plate 7 up to return to its original position.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A press-fitting fixture, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a fixing seat (2), the upper end of the fixing seat (2) is fixedly connected to a lower positioning seat (3), the side surface of the lower positioning seat (3) is fixedly connected to a lower end cover (4), the interior of the lower positioning seat (3) is movably connected to a lower positioning pin (5), the left end of the lower positioning pin (5) passes through the interior of the lower positioning seat (3) and extends to the outside of the lower end cover (4), the surface of the lower positioning pin (5) is fixedly connected to a lower compression spring (6), the left end of the lower compression spring (6) is fixedly connected to the right side of the lower end cover (4), and a positioning plate (7) is arranged above the base (1), the outer surface of the positioning plate (7) A movable groove (8) is provided on the surface, the right end of the lower positioning pin (5) passes through the interior of the movable groove (8) and extends to the interior of the positioning plate (7), the upper end of the positioning plate (7) is fixedly connected to an upper positioning seat (9), the side surface of the upper positioning seat (9) is fixedly connected to an upper end cover (10), the interior of the upper positioning seat (9) is movably connected to an upper positioning pin (11), the left end of the upper positioning pin (11) passes through the interior of the upper positioning seat (9) and extends to the outer side of the upper end cover (10), the surface of the upper positioning pin (11) is fixedly connected to an upper compression spring (12), and the left end of the upper compression spring (12) is fixedly connected to the right side surface of the upper end cover (10).

2. A press-fitting fixture according to claim 1, characterized in that: A fixing rod (13) is fixedly connected to the upper surface of the base (1), and the upper end of the fixing rod (13) passes through the surface of the positioning plate (7) and extends to the top of the positioning plate (7). There are four fixing rods (13), and the outer surfaces of the four fixing rods (13) are fixedly connected to fixing plates (14). The upper surface of the fixing plate (14) is fixedly connected to a spring (15), and the upper end of the spring (15) is fixedly connected to the surface of the positioning plate (7).

3. A press-fitting fixture according to claim 1, characterized in that: A sleeve (16) is fixedly connected to the surface of the base (1), a square groove (17) is provided on the outer surface of the sleeve (16), the right end of the lower positioning pin (5) is located inside the square groove (17), and a threaded hole (18) is provided on the outer surface of the sleeve (16), and the number of the threaded holes (18) is two.

4. A press-fitting fixture according to claim 1, characterized in that: A clamping block (19) is movably connected inside the movable groove (8), a fixing bolt (20) is threadedly connected inside the clamping block (19), and one end of the fixing bolt (20) is threadedly connected to the threaded hole (18).

5. A press-fitting fixture according to claim 1, characterized in that: A first workpiece (21) is movably connected inside the base (1), and the outer surface of the first workpiece (21) is in contact with the inner surface of the sleeve (16).

6. A press-fitting fixture according to claim 5, characterized in that: The upper end of the first workpiece (21) is movably connected to a guide cylinder (22), the outer surface of the guide cylinder (22) is movably connected to a second workpiece (23), and the upper surface of the second workpiece (23) is movably connected to a pressure head (24).

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