Drilling tool for thin-wall lining part

Abstract

The utility model discloses a drilling tool for thin-wall lining parts, which relates to the field of machining and comprises a base and a pressing plate, a lifting component is fixedly connected onto the base and used for adjusting the distance between the pressing plate and the upper side of the base, a lining is placed between the base and the pressing plate, and a clamping component is fixedly connected onto the base and used for clamping the lining. The clamping assembly comprises a plurality of top plates arranged around the side face of the lining, and the top plates move in the radial direction of the lining. The lining clamping device has the beneficial effects that the clamping assembly clamps the lining through the multiple top plates, the contact area between the clamping assembly and the surface of the lining can be increased by clamping the lining through the annularly-arranged top plates, clamping firmness is improved, and deformation caused by uneven stress of the lining can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a drilling fixture for thin-walled bushing parts. Background Technology

[0002] Thin-walled bushings are widely used due to their advantages such as light weight and material savings. However, due to their thin walls and poor rigidity, traditional clamping methods have significant drawbacks during drilling. Common clamping methods often involve localized single-point or multi-point clamping, which easily leads to uneven clamping forces, causing localized deformation of the thin-walled bushing and severely affecting the dimensional accuracy of the part and the drilling position accuracy. Even with auxiliary measures such as elastic shims, it is difficult to fundamentally solve the problem of uneven clamping force distribution. At the same time, the clamping stability of traditional tooling is insufficient. During drilling, the part is prone to slight displacement due to vibration, further reducing machining quality and increasing the scrap rate. Utility Model Content

[0003] The purpose of this utility model is to provide a drilling fixture for thin-walled bushing parts in order to solve the above problems, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a drilling fixture for thin-walled bushing parts, including a base and a pressure plate. A lifting component is fixedly connected to the base for adjusting the distance between the pressure plate and the upper side of the base. A bushing is placed between the base and the pressure plate. A clamping component is fixedly connected to the base for clamping the bushing.

[0006] The clamping assembly includes several top plates arranged around the side of the bushing, and the top plates move radially along the bushing.

[0007] The above-mentioned drilling fixture for thin-walled bushing parts is used. The bushing is placed on the base, and the clamping assembly clamps the bushing through several top plates. The use of the ring-shaped arrangement of top plates to clamp the bushing can increase the contact area between the clamping assembly and the bushing surface, improve the firmness of clamping, and prevent the bushing from deforming due to uneven force. The top plate is placed on top of the bushing, and the lifting assembly drives the top plate to move downward. The top plate and the base can further clamp the bushing.

[0008] Preferably, the lifting assembly includes a guide rod and a lead screw that are vertically fixed to the upper side of the base. The pressure plate is slidably connected to the guide rod. The pressure plate has a through hole through which the lead screw passes. A threaded sleeve is threadedly connected to the surface of the lead screw. The lower end of the threaded sleeve corresponds to the upper side of the pressure plate. A handle is fixedly connected to the surface of the threaded sleeve.

[0009] Preferably, there are at least two guide rods.

[0010] Preferably, the pressure plate and the upper side of the base are both fixedly connected with rubber pads, and the two rubber pads correspond to the top and bottom of the bushing, respectively. The upper side of the base and the pressure plate are both horizontally arranged.

[0011] Preferably, the clamping assembly includes a plurality of bent plates arranged in a ring, the bent portions of which are hinged to the base via ear plates, and a top plate is hinged to the upper end of the bent plates.

[0012] Preferably, a second rubber pad is fixedly connected to one side of the top plate corresponding to the bushing, and the second rubber pad has an arc surface on one side corresponding to the bushing.

[0013] Preferably, a guide rod two is vertically fixedly connected to the base, a connecting plate is slidably connected to the guide rod two, a bolt is vertically threadedly connected to the connecting plate, the upper end of the bolt is rotatably connected to the base, a fixing ring is fixedly connected to the connecting plate, and several rollers are fixedly connected to the fixing ring, the rollers corresponding to the upper side of the lower part of the curved plate.

[0014] Preferably, the curved plate is provided with a guide groove, and the roller is fitted with the guide groove with a clearance.

[0015] Preferably, the base includes a platform and a plurality of support legs fixedly connected around the platform.

[0016] Preferably, a tension spring is fixedly connected between the lower end of the bending plate and the table surface for swinging the bending plate, so that the bending plate drives the top plate away from the bushing.

[0017] The beneficial effects are:

[0018] 1. The clamping assembly clamps the bushing with several top plates. The use of the ring-shaped arrangement of top plates to clamp the bushing can increase the contact area between the clamping assembly and the bushing surface, improve the clamping firmness, and prevent the bushing from deforming due to uneven force.

[0019] 2. The lifting assembly moves the top plate downwards, and the top plate, in conjunction with the base, further clamps the bushing, improving the stability of the bushing clamping. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the clamping component of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the lifting component of this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Base; 2. Lifting assembly; 3. Pressure plate; 4. Clamping assembly; 5. Top plate; 6. Bushing; 7. Guide rod one; 8. Lead screw; 9. Threaded sleeve; 10. Handle; 11. Rubber pad one; 12. Bend plate; 13. Guide groove; 14. Rubber pad two; 15. Tension spring; 16. Fixing ring; 17. Bolt; 18. Guide rod two; 19. Roller; 20. Connecting plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] See Figures 1-4 As shown, this utility model provides a drilling fixture for thin-walled bushing parts, including a base 1 and a pressure plate 3. A lifting component 2 is fixedly connected to the base 1 for adjusting the distance between the pressure plate 3 and the upper side of the base 1. A bushing 6 is placed between the base 1 and the pressure plate 3. A clamping component 4 is fixedly connected to the base 1 for clamping the bushing 6.

[0029] The clamping assembly 4 includes several top plates 5 arranged around the side of the bushing 6, and the top plates 5 move radially along the bushing 6.

[0030] As an optional implementation, the lifting assembly 2 includes a guide rod 7 and a lead screw 8 vertically fixedly connected to the upper side of the base 1. The pressure plate 3 is slidably connected to the guide rod 7. The pressure plate 3 has a through hole, and the lead screw 8 passes through the through hole. A threaded sleeve 9 is threadedly connected to the surface of the lead screw 8. The lower end of the threaded sleeve 9 corresponds to the upper side of the pressure plate 3. A handle 10 is fixedly connected to the surface of the threaded sleeve 9. The pressure plate 3 is slidably connected to the guide rod 7, the lead screw 8 is passed through the pressure plate 3, and the threaded sleeve 9 is threadedly connected to the lead screw 8. By rotating the threaded sleeve 9 through the handle 10, the threaded sleeve 9 pushes the pressure plate 3 downward.

[0031] There are at least two guide rods 7 to ensure the stability of the pressure plate 3 when it moves.

[0032] Rubber pads 11 are fixedly connected to the upper opposite sides of the pressure plate 3 and the base 1. The two rubber pads 11 correspond to the top and bottom of the bushing 6 respectively. The upper side of the base 1 and the pressure plate 3 are both set horizontally.

[0033] The clamping assembly 4 includes several bent plates 12 arranged in a ring. The bent parts of the bent plates 12 are hinged to the base 1 through ear plates. A top plate 5 is hinged to the upper end of the bent plates 12. The hinge point is above the center of gravity of the top plate 5. This design allows the top plate 5 to remain vertical, which is convenient for it to fit against the surface of the bushing 6.

[0034] A rubber pad 2 14 is fixedly connected to one side of the top plate 5 corresponding to the bushing 6. The rubber pad 2 14 has an arc surface on the side corresponding to the bushing 6. The arc surface can increase the contact area between the rubber pad 2 14 and the surface of the bushing 6.

[0035] A guide rod 18 is vertically fixedly connected to the base 1. A connecting plate 20 is slidably connected to the guide rod 18. A bolt 17 is vertically threadedly connected to the connecting plate 20. The upper end of the bolt 17 is rotatably connected to the base 1. A fixing ring 16 is fixedly connected to the connecting plate 20. Several rollers 19 are fixedly connected to the fixing ring 16. The rollers 19 correspond to the upper side of the lower part of the bent plate 12. By rotating the bolt 17, the bolt 17 and the guide rod 18 can move the connecting plate 20 and the fixing ring 16 downward. The fixing ring 16 presses the bent plate 12 downward through the rollers 19, so that the upper end of the bent plate 12 drives the top plate 5 to approach the bushing 6, so that several top plates 5 cooperate to clamp the bushing 6.

[0036] A guide groove 13 is provided on the curved plate 12, and the roller 19 is clearance-fitted with the guide groove 13.

[0037] The base 1 includes a platform and several support legs fixedly connected around the platform.

[0038] A tension spring 15 is fixedly connected between the lower end of the bent plate 12 and the table surface for swinging the bent plate 12, so that the bent plate 12 drives the top plate 5 away from the bushing 6, which makes it easier to place the bushing 6.

[0039] With the above structure, the bushing 6 is placed on the base 1, and the clamping assembly 4 clamps the bushing 6 through several top plates 5. The use of the ring-shaped arrangement of the top plates 5 to clamp the bushing 6 can increase the contact area between the clamping assembly 4 and the surface of the bushing 6, improve the firmness of clamping, and prevent the bushing 6 from deforming due to uneven force. The top plate 5 is placed on top of the bushing 6, and the lifting assembly 2 drives the top plate 5 to move downward. The top plate 5 and the base 1 cooperate to further clamp the bushing 6.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A drilling fixture for thin-walled bushing-type parts, characterized in that: Includes a base (1) and a pressure plate (3). A lifting assembly (2) is fixedly connected to the base (1) for adjusting the distance between the pressure plate (3) and the upper side of the base (1). A bushing (6) is placed between the base (1) and the pressure plate (3). A clamping assembly (4) is fixedly connected to the base (1) for clamping the bushing (6). The clamping assembly (4) includes a plurality of top plates (5) arranged around the side of the bushing (6), and the top plates (5) move radially along the bushing (6).

2. The drilling fixture for thin-walled bushing parts according to claim 1, characterized in that: The lifting assembly (2) includes a guide rod (7) and a lead screw (8) that are vertically fixedly connected to the upper side of the base (1). The pressure plate (3) is slidably connected to the guide rod (7). The pressure plate (3) has a through hole, and the lead screw (8) passes through the through hole. The surface of the lead screw (8) is threaded with a threaded sleeve (9). The lower end of the threaded sleeve (9) corresponds to the upper side of the pressure plate (3). The surface of the threaded sleeve (9) is fixedly connected with a handle (10).

3. The drilling fixture for thin-walled bushing parts according to claim 2, characterized in that: There are at least two guide rods (7).

4. The drilling fixture for thin-walled bushing parts according to claim 1, characterized in that: Rubber pads (11) are fixedly connected to the upper opposite sides of the pressure plate (3) and the base (1). The two rubber pads (11) correspond to the top and bottom of the bushing (6) respectively. The upper side of the base (1) and the pressure plate (3) are both horizontally arranged.

5. The drilling fixture for thin-walled bushing-type parts according to claim 1, characterized in that: The clamping assembly (4) includes a plurality of bent plates (12) arranged in a ring. The bent parts of the bent plates (12) are hinged to the base (1) through ear plates. A top plate (5) is hinged to the upper end of the bent plates (12).

6. The drilling fixture for thin-walled bushing parts according to claim 5, characterized in that: A rubber pad (14) is fixedly connected to one side of the top plate (5) corresponding to the bushing (6), and the rubber pad (14) has an arc surface on one side of the bushing (6).

7. The drilling fixture for thin-walled bushing parts according to claim 6, characterized in that: A guide rod (18) is vertically fixedly connected to the base (1). A connecting plate (20) is slidably connected to the guide rod (18). A bolt (17) is vertically threaded onto the connecting plate (20). The upper end of the bolt (17) is rotatably connected to the base (1). A fixing ring (16) is fixedly connected to the connecting plate (20). Several rollers (19) are fixedly connected to the fixing ring (16). The rollers (19) correspond to the upper side of the lower part of the curved plate (12).

8. The drilling fixture for thin-walled bushing parts according to claim 7, characterized in that: The bending plate (12) is provided with a guide groove (13), and the roller (19) is in clearance fit with the guide groove (13).

9. The drilling fixture for thin-walled bushing parts according to claim 8, characterized in that: The base (1) includes a platform and several support legs fixedly connected around the platform.

10. The drilling fixture for thin-walled bushing-type parts according to claim 9, characterized in that: A tension spring (15) is fixedly connected between the lower end of the bent plate (12) and the table surface for swinging the bent plate (12) so that the bent plate (12) drives the top plate (5) away from the bushing (6).

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