Clamping tool

Abstract

The utility model relates to the technical field of bearing production, and discloses a clamping tool which comprises a bottom supporting frame, and a rotating ring is rotationally installed at the top of the bottom supporting frame. The end of the abutting rod is located in the notch, and the rotating ring rotates to extrude and push the abutting rod to slide and clamp the workpiece. The expansion assembly comprises an extension section and an extrusion head, the extension section is in sliding connection with the abutting rod, the extrusion head is detachably installed on one side of the extension section, and under the extruding and pushing effect of the abutting rod, the concave face of the extrusion head abuts against the outer wall of the ferrule, so that fixing of the ferrule is achieved; the extrusion heads are turned over to enable the convex surfaces of the extrusion heads to face the end of the extension section, the insertion rods are inserted into the extrusion heads and the insertion holes in the wall face of the extension section, the inner wall of the ferrule is extruded and pushed through the convex surfaces of the extrusion heads, the multiple extrusion heads expand the ferrule in the direction away from the circle center of the rotating ring, and the inner wall of the ferrule is limited and fixed. The use mode is more flexible, and the adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing production, in particular to a clamping tooling. Background Art

[0002] When processing bearings, it is necessary to clamp and fix the bearings.

[0003] The prior art discloses a clamping and positioning tooling for the outer circle of a bearing ring (publication number: CN117817582A), which includes a positioning table, a plurality of positioning components and a ring; the ring is rotatably connected to the top of the positioning table, and the plurality of positioning components are arranged inside the ring and are annularly arrayed along the circumferential direction of the ring. The positioning component includes a moving block slidably connected to the top of the positioning table, and a plurality of abutting bumps are arranged inside the ring.

[0004] In the prior art, mainly by rotating the ring to push each ejector rod to slide, and the outer wall of the ferrule is limited and fixed by a plurality of ejector rods jointly abutting against it. During the processing, not only the inner circumferential surface is processed. When processing the outer circumferential surface, the abutting rod abuts against the outer wall of the ferrule, which will affect the processing of the outer wall of the ferrule. Therefore, the abutting rod needs to be able to flexibly clamp the inner and outer wall surfaces of the ferrule.

[0005] Therefore, we propose a clamping tooling. Content of the Utility Model

[0006] The utility model mainly solves the technical problem that the abutting rod can only abut against the outer wall of the ferrule to fix the ferrule, and provides a clamping tooling.

[0007] To achieve the above object, the utility model adopts the following technical scheme. A clamping tooling includes:

[0008] A bottom support frame, on the top of which a rotating ring is rotatably installed. A clamping groove is opened on the top of the rotating ring, and a plurality of notches are opened on the inner wall of the rotating ring. A gear is provided on the top of the bottom support frame to drive the rotating ring to rotate;

[0009] Abutting rods, which are elastically connected to the bottom support frame and there are several of them. An arc-shaped convex surface is formed at the end of the abutting rod, and the end of the abutting rod is located in the notch. The rotation of the rotating ring can push the abutting rod to slide and clamp the workpiece;

[0010] An expansion component, which is arranged at the end of the abutting rod for abutting against the workpiece. The expansion component includes an extension section and an extrusion head. The extension section is slidably connected to the abutting rod, and the extrusion head is detachably installed on one side of the extension section. Concave surfaces and convex surfaces are respectively formed on the opposite two side walls of the extrusion head.

[0011] As a preferred embodiment of the utility model, the bottom support frame includes a rectangular mounting rod; a circular plate fixedly arranged on the top of the mounting rod, the bottom of the swivel is provided with an annular rib, the top of the circular plate is provided with an annular slide groove, and the rib is slidably arranged in the slide groove.

[0012] As a preferred embodiment of the utility model, the rotating ring is annular, the outer ring of the rotating ring is provided with teeth, the clamping groove is opened at the center of the rotating ring, and the notch is opened on the inner circumference of the rotating ring, and the notch forms a crescent-shaped notch.

[0013] As a preferred embodiment of the utility model, a sliding channel is opened on the top surface of the circular plate of the bottom support frame, a slider is slidably connected in the sliding channel, a tension spring is fixedly connected to the end of the slider, the tension spring is fixedly connected to the circular plate, and the resistance rod is fixedly installed on the top surface of the slider.

[0014] As a preferred embodiment of the utility model, the expansion component also includes an insertion rod, which can be plugged into the extension section and the extrusion head, forming a U-shaped rod body structure, and the top surfaces of the extension section and the extrusion head are both provided with insertion holes, and the insertion rod can be inserted into the insertion holes.

[0015] As a preferred embodiment of the utility model, the expansion component also includes a sliding rod and a positioning hole. The sliding rod is fixedly connected to the extension section and is slidably connected to the interference rod. A plurality of positioning holes are opened on the top of the sliding rod. A latch is provided on the top of the interference rod, and the latch can be inserted into the positioning hole.

[0016] As a preferred embodiment of the utility model, a through groove adapted to the sliding rod is formed at the end of the abutment rod, the sliding rod is slidably arranged in the through groove, the positioning hole forms a circular hole, a hole is formed at the top of the abutment rod, the latch passes through the hole and is inserted into the positioning hole, and a plurality of positioning holes are equidistantly arranged at the top of the sliding rod.

[0017] The utility model provides a clamping tool, which has the following beneficial effects:

[0018] 1. In this clamping tool, under the pushing action of the resistance rod, the concave surface of the extrusion head contacts the outer wall of the ring to fix the ring. When the inner wall of the ring needs to be fixed, the extrusion head is turned over so that the convex surface of the extrusion head faces the end of the extension section. By inserting the insertion rod into the insertion holes of the extrusion head and the wall of the extension section, the insertion rod and the insertion hole are interference fit and the height of the insertion rod is greater than the depth of the insertion hole. The insertion rod is located above the ring. At this time, the convex surface of the extrusion head pushes the inner wall of the ring, and multiple extrusion heads tighten the ring in the direction away from the center of the swivel respectively, so as to achieve limited fixation of the inner wall of the ring. It has a more flexible way of use and stronger adaptability.

[0019] 2. This clamping tool, by pulling the extension section, the extension section drives the sliding rod to slide in the through groove of the resistance rod, and the pin is inserted into the positioning hole at the corresponding position to fix the position of the sliding rod. Then, the distance between the extension section and the resistance rod can be adjusted and fixed, and the resistance rod can be pushed by rotating the swivel to increase the diameter range of the clampable ring and increase adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0021] Figure 2 This is the second overall stereogram of the utility model;

[0022] Figure 3 This is one of the three-dimensional diagrams of the interference rod and the expansion assembly of the utility model;

[0023] Figure 4 This is the second stereoscopic diagram of the interference rod and the expansion assembly of the utility model;

[0024] Figure 5 It is a partial cutaway view of the extension section and the interference rod of the utility model.

[0025] Legend: 10. Bottom support frame; 11. Swivel; 12. Clamping groove; 13. Notch; 14. Gear; 15. Resistance rod; 16. Slider; 20. Extension section; 21. Extrusion head; 22. Sliding rod; 23. Positioning hole; 24. Insert rod. DETAILED DESCRIPTION

[0026] A clamping tool, such as Figure 1 and Figure 2 As shown, including:

[0027] A bottom support frame 10, a swivel 11 is rotatably mounted on the top of the bottom support frame 10, a clamping groove 12 is provided on the top of the swivel 11, a plurality of notches 13 are provided on the inner wall of the swivel 11, and a gear 14 is provided on the top of the bottom support frame 10 to drive the swivel 11 to rotate;

[0028] The resisting rod 15 is elastically connected to the bottom support frame 10 and has a plurality of them. The end of the resisting rod 15 forms an arc-shaped convex surface. The end of the resisting rod 15 is located in the notch 13. The rotation of the rotating ring 11 can squeeze and push the resisting rod 15 to slide and clamp the workpiece.

[0029] The bottom support frame 10 includes a rectangular mounting rod; a circular plate fixedly arranged at the top of the mounting rod. The bottom of the rotating ring 11 is provided with an annular edge. An annular sliding groove is opened at the top of the circular plate. The edge is slidably arranged in the sliding groove. The rotating ring 11 is annular. Teeth are arranged on the outer ring of the rotating ring 11. The clamping groove 12 is opened at the center of the rotating ring 11. The notch 13 is opened on the inner circumferential surface of the rotating ring 11. The notch 13 forms a crescent-shaped notch. A sliding channel is opened on the top surface of the circular plate of the bottom support frame 10. A slider 16 is slidably connected in the sliding channel. One end of the slider 16 is fixedly connected with a tension spring. The tension spring is fixedly connected with the circular plate. The abutting rod 15 is fixedly installed on the top surface of the slider 16;

[0030] In this solution, a motor is fixedly installed at the bottom of the bottom support frame 10. The output shaft of the motor is fixedly connected with the gear 14. The gear 14 is driven by the motor to rotate. The gear 14 meshes with the outer ring of the rotating ring 11. The rotating ring 11 is rotated by the gear 14. Due to the notch 13 on the inner wall of the rotating ring 11, the end of the abutting rod 15 is pushed by the inner wall surface of the rotating ring 11, so that the abutting rod 15 drives the slider 16 to slide in the sliding channel and stretches the tension spring to deform. Furthermore, each abutting rod 15 moves synchronously and moves towards the center of the rotating ring 11. The outer wall of the bearing is abutted by the other end of the abutting rod 15, so as to realize the clamping and fixing of the bearing race. The clamping stability is high and it is not easy to fall off and shake.

[0031] As Figure 3 、 Figure 4 and Figure 5 shown, the expansion assembly is arranged at the end of the abutting rod 15 for abutting against the workpiece. The expansion assembly includes an extension section 20 and an extrusion head 21. The extension section 20 is slidably connected with the abutting rod 15. The extrusion head 21 is detachably installed on one side of the extension section 20. Concave surfaces and convex surfaces are respectively formed on the opposite two side walls of the extrusion head 21. The expansion assembly further includes an insertion rod 24. The insertion rod 24 can be inserted into the extension section 20 and the extrusion head 21. The insertion rod 24 forms a U-shaped rod structure. Insertion holes are opened on the top surfaces of the extension section 20 and the extrusion head 21. The insertion rod 24 can be inserted into the insertion holes;

[0032] The extrusion head 21 forms a crescent-shaped plate. When the outer circumference of the ring is clamped, the concave surface of the extrusion head 21 can be adjusted to face the center of the swivel 11. Under the pushing action of the resistance rod 15, the concave surface of the extrusion head 21 contacts the outer wall of the ring to fix the ring. When the inner wall of the ring needs to be fixed, the extrusion head 21 is turned over so that the convex surface of the extrusion head 21 faces the end of the extension section 20. By inserting the insertion rod 24 into the insertion holes of the extrusion head 21 and the wall of the extension section 20, the insertion rod 24 and the insertion hole are interference fit and the height of the insertion rod 24 is greater than the depth of the insertion hole. The insertion rod 24 is located above the ring. At this time, the convex surface of the extrusion head 21 pushes the inner wall of the ring, and multiple extrusion heads 21 tighten the ring in the direction away from the center of the swivel 11, respectively, to achieve the limit fixation of the inner wall of the ring, which has a more flexible usage method and stronger adaptability.

[0033] like Figure 5 As shown, the expansion assembly also includes a sliding rod 22 and a positioning hole 23. The sliding rod 22 is fixedly connected to the extension section 20 and is slidably connected to the abutting rod 15. A plurality of positioning holes 23 are provided at the top of the sliding rod 22. A latch is provided at the top of the abutting rod 15. The latch can be inserted into the positioning hole 23. A through groove adapted to the sliding rod 22 is provided at the end of the abutting rod 15. The sliding rod 22 is slidably arranged in the through groove. The positioning hole 23 forms a circular hole. A hole is provided at the top of the abutting rod 15. The latch passes through the hole and is inserted into the positioning hole 23. A plurality of positioning holes 23 are equidistantly arranged at the top of the sliding rod 22.

[0034] As a supplement to the above scheme, in this scheme, by pulling the extension section 20, the extension section 20 drives the sliding rod 22 to slide in the through groove of the resistance rod 15, and the pin is inserted into the positioning hole 23 at the corresponding position to fix the position of the sliding rod 22. Then, the distance between the extension section 20 and the resistance rod 15 can be adjusted and fixed, and the rotating ring 11 is rotated to push the resistance rod 15, thereby increasing the diameter range of the clampable ring and increasing the adjustability.

[0035] The working principle of the utility model is as follows: the motor drives the gear 14 to rotate, the gear 14 meshes with the outer ring of the rotating ring 11, and the rotating ring 11 is rotated by the gear 14. Due to the notch 13 on the inner wall of the rotating ring 11, the end of the resistance rod 15 is squeezed and pushed through the inner wall surface of the rotating ring 11, so that the resistance rod 15 drives the slider 16 to slide in the sliding channel and stretch the tension spring to deform, and then each resistance rod 15 keeps synchronous movement and moves toward the center of the circle of the rotating ring 11;

[0036] The extrusion head 21 forms a crescent-shaped plate. When the outer circumference of the ferrule is clamped, the concave surface of the extrusion head 21 can be adjusted to face the center of the swivel 11. Under the squeezing and pushing action of the abutment rod 15, the concave surface of the extrusion head 21 abuts against the outer wall of the ferrule to fix the ferrule. When the inner wall of the ferrule needs to be fixed, the extrusion head 21 is turned over so that the convex surface of the extrusion head 21 faces the end of the extension section 20. By inserting the insertion rod 24 into the insertion holes of the extrusion head 21 and the wall of the extension section 20, the insertion rod 24 is interference-fitted with the insertion hole and the height of the insertion rod 24 is greater than the depth of the insertion hole. The insertion rod 24 is located above the ring. At this time, the convex surface of the extrusion head 21 pushes the inner wall of the ring. The multiple extrusion heads 21 tighten the ring in the direction away from the center of the swivel 11, pull the extension section 20, and the extension section 20 drives the sliding rod 22 to slide in the through groove of the resistance rod 15. The pin is inserted into the positioning hole 23 at the corresponding position to fix the position of the sliding rod 22. Then the distance between the extension section 20 and the resistance rod 15 can be adjusted and fixed, and the swivel 11 rotates to push the resistance rod 15, thereby increasing the diameter range of the clampable ring.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A clamping tooling, characterized in that, Including: A bottom support frame (10), a swivel ring (11) is fixedly installed on the top of the bottom support frame (10). A clamping groove (12) is opened on the top of the swivel ring (11), and a plurality of notches (13) are opened on the inner wall of the swivel ring (11). A gear (14) is provided on the top of the bottom support frame (10) to drive the swivel ring (11) to rotate; A plurality of abutting rods (15) which are elastically connected to the bottom support frame (10). The end of the abutting rod (15) forms an arc-shaped convex surface. The end of the abutting rod (15) is located in the notch (13). When the swivel ring (11) rotates, it can push the abutting rod (15) to slide and clamp the workpiece; An expansion assembly is arranged at the end of the abutting rod (15) for abutting against the workpiece. The expansion assembly includes an extension section (20) and an extrusion head (21). The extension section (20) is slidably connected to the abutting rod (15). The extrusion head (21) is detachably installed on one side of the extension section (20). Concave surfaces and convex surfaces are respectively formed on the opposite side walls of the extrusion head (21).

2. The clamping tooling according to claim 1, wherein: The bottom support frame (10) includes a rectangular mounting rod; a circular plate fixedly arranged on the top of the mounting rod. A circular ring-shaped rib is provided at the bottom of the swivel ring (11), and a circular ring-shaped sliding groove is opened on the top of the circular plate. The rib is slidably arranged in the sliding groove.

3. The clamping tooling according to claim 1, wherein: The swivel ring (11) is annular. Tooth teeth are provided on the outer ring of the swivel ring (11). The clamping groove (12) is opened at the center of the swivel ring (11), and the notch (13) is opened on the inner circumferential surface of the swivel ring (11). The notch (13) forms a crescent-shaped notch.

4. The clamping tooling according to claim 1, wherein: A sliding channel is opened on the top surface of the circular plate of the bottom support frame (10). A slider (16) is slidably connected in the sliding channel. A tension spring is fixedly connected to the end of the slider (16), and the tension spring is fixedly connected to the circular plate. The abutting rod (15) is fixedly installed on the top surface of the slider (16).

5. The clamping tooling according to claim 1, characterized in that: The expansion assembly further includes an insertion rod (24). The insertion rod (24) can be inserted into the extension section (20) and the extrusion head (21). The insertion rod (24) forms a U-shaped rod structure. Insertion holes are opened on the top surfaces of the extension section (20) and the extrusion head (21). The insertion rod (24) can be inserted into the insertion holes.

6. The clamping tooling according to claim 1, wherein: The expansion assembly further includes a sliding rod (22) and positioning holes (23). The sliding rod (22) is fixedly connected to the extension section (20) and is slidably connected to the abutting rod (15). A plurality of positioning holes (23) are opened on the top of the sliding rod (22). A pin is provided on the top of the abutting rod (15), and the pin can be inserted into the positioning holes (23).

7. The clamping tooling according to claim 6, characterized in that: A through groove adapted to the sliding rod (22) is opened at the end of the abutting rod (15). The sliding rod (22) is slidably arranged in the through groove. The positioning holes (23) form circular holes. A hole is opened on the top of the abutting rod (15). The pin passes through the hole and is inserted into the positioning holes (23). A plurality of positioning holes (23) are equidistantly arranged on the top of the sliding rod (22).

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