A clamping mechanism for a bearing processing drilling machine

Abstract

A clamping mechanism for a bearing processing drilling machine includes a housing and a turntable arranged in the housing, the turntable is provided with three or more arc-shaped adjustment strip holes, a radial slide groove corresponding to the arc-shaped adjustment strip holes is provided on the top plate of the housing, a clamp block is slidably arranged in the radial slide groove, the lower end of the clamp block is slidably arranged in the arc-shaped adjustment strip hole, the side wall of the housing is provided with an opening, the outer edge of the turntable is evenly provided with a plurality of positioning pits, the outer side wall of the housing is provided with a positioning mechanism for the positioning pits, the positioning mechanism includes a base and a positioning member hinged on the base by a rotating shaft, the base is fixed on the outer side wall of the housing below the opening, the hinged end of the positioning member is inserted on the rotating shaft on the base through a first torsion spring, and the limiting end of the positioning member corresponds to the positioning pit directly above the base. The clamping mechanism has a simple overall structure, reliable operation, high positioning accuracy, and outstanding practicality.

Description

Technical Field

[0001] The utility model relates to a clamping mechanism of a bearing processing drilling machine, belonging to the technical field of bearing drilling equipment. Background Art

[0002] The existing bearing clamping device for bearing processing drilling machine is shown in the Chinese utility model patents "Authorization Announcement No.: CN214489666U; Authorization Announcement Date: October 26, 2021; Name: A Clamping Mechanism for Bearing Processing Drilling Machine" and "Authorization Announcement No.: CN218517772U; Authorization Announcement Date: February 24, 2023; Name: A Bearing Processing Drilling Machine": The bearing clamping device provided by the former includes a circular box body composed of a cover plate, a chassis and a base, and a turntable arranged in the circular box body. The cover plate is evenly divided with three radial slide grooves, and a clamping block is slidably arranged in the radial slide groove. The lower end of the clamping block slides It is inserted into the three arc-shaped strip holes on the turntable. When in use, the turntable is rotated, and the combined action of the arc-shaped strip holes and the radial slide grooves enables the clamping block to move synchronously outward or inward in the radial slide grooves, thereby achieving clamping and fixing of the bearing. The latter solves the defect that the turntable of the former cannot be fixed after rotation, but the technical solution of the latter still has shortcomings. Specifically, the limiting structure on the edge of the turntable is a helical tooth groove. In order to achieve the cooperation between the helical tooth groove and the ratchet, it is usually necessary to rotate the turntable more first. After the ratchet is aligned with the corresponding helical tooth groove, the turntable needs to be rotated in the opposite direction a part to achieve the cooperation between the helical tooth groove and the ratchet, which has the defect of loose clamping and not being reliable enough. Utility Model Content

[0003] The purpose of the utility model is to provide a clamping mechanism for a bearing processing drilling machine in response to the above-mentioned technical defects of the existing bearing processing drilling machine. The clamping mechanism adopts a vertical flipping form to realize the cooperation between the positioning end of the positioning member and the positioning pit on the outer edge of the horizontal turntable, thereby solving the defect of inaccurate positioning of the turntable caused by the loose cooperation between the oblique tooth grooves and the ratchet on the edge of the existing turntable. The clamping mechanism has a simple overall structure, reliable operation, high positioning accuracy, and outstanding practicality.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A clamping mechanism for a bearing processing drilling machine comprises an outer shell and a turntable arranged in the outer shell, the turntable is provided with three or more arc-shaped adjustment strip holes, the top plate of the outer shell is provided with radial slide grooves corresponding to the arc-shaped adjustment strip holes, a clamping block is slidably arranged in the radial slide groove, the lower end of the clamping block is slidably arranged in the arc-shaped adjustment strip hole, the side wall of the outer shell is provided with an opening, a plurality of positioning pits are evenly arranged on the outer edge of the turntable, a positioning mechanism is provided on the outer side of the side wall of the outer shell for the positioning pits, the positioning mechanism comprises a base and a positioning member hinged to the base by a rotating shaft, the base is fixed to the outer side of the side wall of the outer shell below the opening, the hinged end of the positioning member is inserted into the rotating shaft on the base through a first torsion spring, and the limiting end of the positioning member corresponds to the positioning pit directly above the base.

[0006] By adopting the above technical solution, a clamping mechanism for a bearing processing drilling machine is provided. The clamping mechanism adopts a vertical flipping form to realize the matching of the positioning end of the positioning member with the positioning pit on the outer edge of the horizontal turntable, thereby solving the defect that the helical tooth groove on the edge of the turntable and the ratchet are loose and cause the turntable to be positioned inaccurately. The clamping mechanism has a simple overall structure, reliable operation, high positioning accuracy, and outstanding practicality.

[0007] The utility model is further configured as follows: the positioning mechanism is located below the edge of the opening on the side toward which the rotation of the turntable causes the clamping block to slide radially inwards.

[0008] The utility model is further configured as follows: when the limiting end of the positioning member is matched with the corresponding positioning pit, the side wall of the limiting end abuts against the edge of the opening.

[0009] By adopting the above technical solution, the positioning mechanism is set on the side where the turntable rotates in that direction and causes the clamping block to move toward the middle of the top plate. Through the contact between the limit end of the positioning mechanism and the side wall of the opening, the stability of the positioning can be effectively maintained to prevent the bearing from loosening after tightening.

[0010] The utility model is further configured as follows: the limiting end of the positioning member and the positioning pit are in a matching relationship in the transverse direction.

[0011] By adopting the above technical solution, the limiting end of the positioning member and the positioning pit are arranged in a matching relationship in the lateral direction, which can further ensure accurate positioning.

[0012] The utility model is further configured as follows: a pull ring is arranged on the outer side of the middle part of the positioning piece.

[0013] By adopting the above technical solution, a pull ring is added to the outer side of the middle part of the positioning piece, which can facilitate manual lifting of the positioning piece.

[0014] The utility model is further configured as follows: the turntable is mounted on the middle vertical axis in the outer shell through a second torsion spring. When the clamping mechanism does not clamp the bearing and the limit end is not inserted into the corresponding positioning pit, the turntable rotates under the action of the second torsion spring, and each clamping block slides synchronously toward the middle of the top plate of the outer shell along the radial groove.

[0015] By adopting the above technical solution and arranging the turntable with a second torsion spring for automatic return, the convenience of operation of the device can be effectively improved.

[0016] The utility model is further configured as follows: a transverse sliding groove cooperating with the radial sliding groove is arranged in the middle of the clamping block.

[0017] The utility model is further configured as follows: a roller corresponding to the arc-shaped adjusting strip hole is sleeved on the lower end of the clamping block.

[0018] By adopting the above technical solution, a series of targeted designs are made to the clamp block, which effectively ensures that the clamp block slides smoothly in the radial slide groove and the arc-shaped adjustment strip hole at the same time.

[0019] The utility model is further configured as follows: the side wall of the turntable is provided with a turn rod extending out of an opening of the side wall of the shell.

[0020] The utility model is further configured as follows: a rubber sleeve which is convenient for gripping is arranged at the outer end of the rotating rod.

[0021] By adopting the above technical solution, a rotating rod that swings horizontally in the opening is arranged on the edge of the rotating disk, and a rubber sleeve that is easy to hold is arranged on the outer end of the rotating rod, which effectively ensures the convenience of operating the rotating rod.

[0022] The main beneficial effects of the utility model are:

[0023] 1. The novel clamping mechanism adopts the form of vertical flipping to realize the cooperation between the positioning end of the positioning member and the positioning pit on the outer edge of the horizontal turntable, thereby solving the defect that the helical tooth groove on the edge of the existing turntable and the ratchet are loose, resulting in inaccurate positioning of the turntable. The overall structure of the clamping mechanism is simple, the operation is reliable, and the positioning accuracy is high, which has outstanding practicality;

[0024] 2. The new clamping mechanism sets the positioning mechanism on the side where the clamping block moves toward the middle of the top plate when the turntable rotates in that direction. The contact between the limit end of the positioning mechanism and the side wall of the opening can effectively maintain the stability of the positioning and prevent the loosening of the bearing after tightening.

[0025] 3. The new clamping mechanism is equipped with a second torsion spring for automatic return of the turntable, which can effectively improve the convenience of operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the appearance of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the utility model after the top plate is removed.

[0029] In the figure, 1. shell; 11. top plate; 111. radial slide groove; 12. side wall; 121. opening; 122. base; 123. positioning member; 124. pull ring; 125. limit end; 13. bottom plate; 2. turntable; 21. arc-shaped adjustment strip hole; 22. rotating rod; 221. rubber sleeve; 23. positioning pit; 3. clamping block; 4. vertical axis. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] like Figure 1 to Figure 2 As shown, a clamping mechanism of a bearing processing drilling machine includes a shell 1 and a turntable 2 arranged in the shell 1. The shell 1 is composed of a top plate 11, an annular side plate 12 and a bottom plate 13. The turntable 2 is installed on the middle vertical axis 4 in the shell 1 through a second torsion spring.

[0033] The turntable 2 is provided with three or more arc-shaped adjustment strip holes 21, and the top plate 11 of the housing 1 is provided with radial slide grooves 111 corresponding to the arc-shaped adjustment strip holes 21. The clamping block 3 is slidably arranged in the radial slide grooves 111, and the lower end of the clamping block 3 is slidably arranged in the arc-shaped adjustment strip hole 21. The middle part of the clamping block 3 is provided with a transverse slide groove that cooperates with the radial slide groove 111, and the lower end of the clamping block 3 is sleeved with a roller corresponding to the arc-shaped adjustment strip hole 21. The side wall 12 of the housing 1 is provided with an opening 121, and the side wall of the turntable 2 is provided with a rotating rod 22 extending out of the opening 121 of the side wall 12 of the housing 1, and the outer end of the rotating rod 22 is provided with a rubber sleeve 221 for easy gripping, and the outer edge of the turntable 2 is evenly provided with a plurality of positioning pits 23, and the positioning pits 23 are located on the lower side of the rotating rod 22.

[0034] A positioning mechanism is provided on the outer side of the side wall 12 of the housing 1 for the positioning pit 23. The positioning mechanism is located below the edge of the opening 121 on the side toward which the rotating disk 2 rotates to cause the clamping block 3 to slide radially inward. The positioning mechanism includes a base 122 and a positioning member 123 hinged on the base 122 by a rotating shaft. The base 122 is fixed on the outer side of the side wall 12 of the housing 1 below the opening 121. The hinged end of the positioning member 123 is inserted on the rotating shaft on the base 122 through a first torsion spring. A pull ring 124 is provided on the outer side of the middle of the positioning member 123. The limiting end 125 of the positioning member corresponds to the positioning pit 23 just above the base 122. When the limiting end 125 of the positioning member 123 is matched with the corresponding positioning pit 23, the side wall of the limiting end 125 abuts against the edge of the opening 121, and the limiting end 125 of the positioning member 123 is in a matching relationship with the positioning pit 23 in the transverse direction.

[0035] Principle of use: When the clamping mechanism does not clamp the bearing and the limit end 125 is not inserted into the corresponding positioning pit 23, the turntable 2 rotates under the action of the second torsion spring, and each clamping block 3 slides synchronously along the radial slide groove 111 toward the middle of the top plate 11 of the shell 1, that is, each clamping block 3 returns to the initial state.

[0036] When the bearing needs to be clamped, hold the pull ring 124 to make the limit end 125 leave the corresponding positioning pit 23, hold the rubber sleeve 221 at the outer end of the rotating rod 22, and rotate the turntable 2. When each clamping block 3 moves outward along the radial slide groove 111 and clamps the bearing, release the pull ring 124, and the limit end 125 is inserted into the corresponding positioning pit 23 under the action of the first torsion spring to position the turntable 2, thereby clamping and fixing the bearing.

Claims

1. A clamping mechanism for a bearing processing drilling machine, comprising a housing (1) and a turntable (2) arranged in the housing (1), the turntable (2) being provided with three or more arc-shaped adjustment strip holes (21), a top plate (11) of the housing (1) being provided with radial slide grooves (111) corresponding to the arc-shaped adjustment strip holes (21), a clamping block (3) being slidably arranged in the radial slide grooves (111), a lower end of the clamping block (3) being slidably arranged in the arc-shaped adjustment strip hole (21), a side wall (12) of the housing (1) being provided with an opening (121), a plurality of positioning pits (23) being evenly arranged on the outer edge of the turntable (2), a positioning mechanism being provided on the outer side of the side wall (12) of the housing (1) for the positioning pits (23), and characterized in that: The positioning mechanism comprises a base (122) and a positioning member (123) hinged on the base (122) by a rotating shaft, the base (122) is fixed to the outer side of the side wall (12) of the housing (1) below the opening (121), the hinged end of the positioning member (123) is inserted into the rotating shaft on the base (122) through a first torsion spring, and the limiting end (125) of the positioning member corresponds to the positioning pit (23) directly above the base (122).

2. The clamping mechanism of a bearing processing drilling machine according to claim 1 is characterized in that: The positioning mechanism is located below the edge of the opening (121) on the side toward which the rotation of the turntable (2) causes the clamping block (3) to slide radially inward.

3. The clamping mechanism of a bearing processing drilling machine according to claim 2 is characterized in that: When the limiting end (125) of the positioning member (123) is matched with the corresponding positioning recess (23), the side wall of the limiting end (125) abuts against the edge of the opening (121).

4. The clamping mechanism of a bearing processing drilling machine according to claim 3 is characterized in that: The limiting end (125) of the positioning member (123) and the positioning recess (23) are in a matching relationship in the transverse direction.

5. The clamping mechanism of a bearing processing drilling machine according to claim 4 is characterized in that: A pull ring (124) is arranged on the outer side of the middle part of the positioning member (123).

6. The clamping mechanism of a bearing processing drilling machine according to claim 5, characterized in that: The turntable (2) is mounted on the middle vertical axis (4) in the housing (1) via a second torsion spring. When the clamping mechanism does not clamp the bearing and the limit end (125) is not inserted into the corresponding positioning pit (23), the turntable (2) rotates under the action of the second torsion spring, and each clamping block (3) slides synchronously along the radial groove (111) toward the middle of the top plate (11) of the housing (1).

7. The clamping mechanism of a bearing processing drilling machine according to claim 6, characterized in that: A transverse sliding groove cooperating with the radial sliding groove (111) is provided in the middle of the clamping block (3).

8. The clamping mechanism of a bearing processing drilling machine according to claim 7, characterized in that: The lower end of the clamping block (3) is sleeved with a roller corresponding to the arc-shaped adjustment strip hole (21).

9. The clamping mechanism of a bearing processing drilling machine according to claim 1, characterized in that: The side wall of the rotating disk (2) is provided with a rotating rod (22) extending out of an opening (121) of the side wall (12) of the housing (1).

10. The clamping mechanism of a bearing processing drilling machine according to claim 9, characterized in that: The outer end of the rotating rod (22) is provided with a rubber sleeve (221) for easy gripping.

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