A multi-angle drilling fixture for parts

Abstract

A multi-angle drilling fixture for parts includes a chassis installed on a drilling machine workbench, the chassis is rotatably connected to the drilling machine workbench and can be fixed to the drilling machine workbench; a base frame is provided on the chassis, a rotating frame is provided on the base frame, and the rotating frame is rotatably connected to one end of the base frame, and the rotating frame can be fixed to the base frame at any angle on its rotation path through a connecting piece; a first clamp and a second clamp are provided on the rotating frame, and the distance between the first clamp and the second clamp can be adjusted. After the parts are stably fixed, drilling at different positions can be completed without disassembly, which greatly simplifies the process of drilling and fixing parts, and enables the parts to adjust the rotating frame to complete the processing of inclined holes under the premise of stable fixation, thereby improving the stability of drilling and ensuring the accuracy of drilling, and the rotating frame can be fixed and moved through the cooperation of locking nuts and locking bolts.

Description

Technical Field

[0001] The utility model relates to the technical field of parts drilling, in particular to a parts multi-angle drilling fixture. Background Art

[0002] The processing of parts usually requires cutting, grinding, drilling and other processes. According to the processing drawings, the raw materials are processed into various hardware accessories using lathes, milling machines, drilling machines, polishing machines and other machines. The drilling process is the operation of using the drill bit of a drilling machine to machine holes in the parts fixed on the workbench.

[0003] When drilling a part, a clamp is needed to fix the part on the workbench to prevent the part from moving during drilling and to improve the drilling accuracy. For example, Chinese patent number CN219967183U discloses a quick-clamping drilling clamp, which can clamp the part through a stop block 403 in conjunction with a movable positioning block 502 and other components to complete the drilling work. However, in actual use, the fixing angle of the clamp is relatively fixed. When processing inclined holes at different angles of the part, the part needs to be disassembled and re-fixed, and the part needs to be tilted and fixed. For some irregularly shaped parts, the stability is poor when some positions are tilted and fixed. When the drill bit is drilling, the part is easily offset, which causes deviations in the processing of the inclined hole and affects the processing accuracy of the hole. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a multi-angle drilling fixture for parts.

[0005] The technical solution of this utility model is as follows:

[0006] A multi-angle drilling fixture for parts, comprising a chassis mounted on a drilling machine workbench, wherein the chassis is rotatably connected to the drilling machine workbench and can be fixed to the drilling machine workbench;

[0007] The chassis is provided with a base frame, the base frame is movably provided with a rotating frame, and the rotating frame is rotatably connected to one end of the base frame, and the rotating frame can be fixed with the base frame at any angle on its rotation path through a connecting piece;

[0008] The rotating frame is provided with a first clamp and a second clamp, and the distance between the first clamp and the second clamp is adjustable.

[0009] The rotating connection mode of the rotating frame is that two connecting plates are installed on both sides of one end of the base frame along the length direction, and the highest end of the connecting plate is not lower than the upper end surface of the rotating frame;

[0010] A rotating shaft is arranged between the two connecting plates, and the rotating shaft penetrates the rotating frame along the width direction of the rotating frame, and the rotating shaft is limited by a limiting nut on the outer side of the connecting plate.

[0011] The specific design of the connecting piece is that the connecting piece includes a strip plate rotatably mounted on both sides of the base frame, and a waist-shaped hole is opened in the strip plate along the length direction, and the rotating frame is fixed at any position on the rotating path by a locking piece cooperating with the waist-shaped hole.

[0012] The specific design of the locking member is that the locking member includes locking bolts arranged on both sides of the rotating frame and passing through the waist-shaped holes, and the strip plate is fixed by the cooperation of the locking nut and the locking bolts.

[0013] In order to facilitate the adjustment by rotating the locking nut, the locking nut is a butterfly nut.

[0014] In order to allow the rotating frame to have a larger rotation range and prevent excessive rotation from causing failure in drilling work, the maximum rotation angle of the rotating frame around the rotation axis is 30°-90°.

[0015] The specific design of the first clamp and the second clamp is that the first clamp is fixedly connected to the rotating frame, and the second clamp can be moved in a direction toward or away from the first clamp through a driving member.

[0016] The specific structure of the driving member is that the driving member includes a bearing seat installed on one side of the second clamp and is located on the side away from the first clamp. The bearing seat is rotatably connected to a screw, and an adjusting nut that cooperates with the screw thread is fixedly installed on the side of the rotating frame away from the first clamp.

[0017] In order to prevent the screw from being too long and exceeding the maximum distance that the first clamp and the second clamp can move along the rotating frame, thereby wasting the screw material, and to make the entire clamp structure more compact, the length of the rotating frame is 2 / 3-5 / 6 of the length of the screw.

[0018] In order to facilitate the rotation of the lead screw, a rotating handle is installed at one end of the lead screw away from the second clamp.

[0019] The beneficial effects of the utility model are as follows: the utility model is a multi-angle drilling fixture for parts, which firstly, through the setting of the first fixture and the second fixture and in cooperation with the driving member, can clamp the parts, and then cooperate with the drill bit of the drilling machine to complete a stable drilling operation; secondly, through the rotating frame that is rotatably set, can drive the parts fixed by the first fixture and the second fixture to rotate, so that after the parts are stably fixed, drilling of holes in different positions can be completed without disassembly, which greatly simplifies the process of drilling and fixing parts, and can make the parts adjust the rotating frame to complete the processing of inclined holes under the premise of stable fixation, improve the stability of drilling, ensure the accuracy of drilling, and the rotating frame can be fixed and moved by the cooperation of the locking nut and the locking bolt, and the operation method is very convenient; finally, the components of the fixture are easy to obtain and process, which is very suitable for self-assembly in the factory, saving the cost of fixture production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0021] In the attached picture:

[0022] Figure 1 is a schematic diagram of the fixture structure;

[0023] Figure 2 This is a partial exploded view of the fixture structure;

[0024] Figure 3 It is a partial cross-sectional view of the fixture structure;

[0025] Figure 4 It is a schematic diagram of the angle adjustment of the fixture structure;

[0026] The components represented by the reference numerals in the figure are:

[0027] 1. Chassis; 2. Base frame; 3. Rotating frame; 4. Connecting piece; 41. Strip plate; 42. Waist-shaped hole; 43. Locking piece; 431. Locking bolt; 432. Locking nut; 5. First clamp; 6. Second clamp; 7. Connecting plate; 8. Rotating shaft; 9. Limiting nut; 10. Driving piece; 101. Bearing seat; 102. Lead screw; 103. Adjusting nut; 104. Turning handle. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0029] Example

[0030] As mentioned in the background technology, the forms of use of existing clamps are mostly similar to the clamp forms mentioned in the comparative patents. However, during use, the inventor found that although the clamping and fixing can be completed quickly, when processing multiple holes such as vertical holes and inclined holes on a part, it is necessary to drill a hole, disassemble the part and re-fix it at different angles to complete the processing of the inclined hole. On the one hand, frequent disassembly is quite laborious, and on the other hand, the part is very easy to shift when it is tilted and fixed for drilling, and the fixing effect is not obvious. The clamp in the comparative patent cannot directly complete the multi-angle drilling of the part. Therefore, the inventor modified the existing clamp and designed a new multi-angle drilling clamp, which is explained in detail below with reference to the drawings.

[0031] This embodiment provides a multi-angle drilling fixture for parts, see Figure 1 , including a chassis 1 installed on the drilling machine workbench, the chassis 1 is rotatably connected to the drilling machine workbench, first of all, the rotatable connection between the chassis 1 and the drilling workbench is also one of the inventive points of the design, and the rotation of the chassis 1 can drive the rotation of the parts clamped on the chassis 1, thereby increasing the angle adjustment range of the clamped parts, improving the practicality of the clamp, and facilitating the multi-directional adjustment of the drilling position, and the chassis 1 can be fixed to the drilling machine workbench. The fixation of the chassis 1 is not described in detail in this scheme, so the chassis 1 can be fixed to the drilling workbench in many ways, the simplest of which is to manually hold the chassis 1, or to use positioning bolts to install it on the outside of the chassis 1, and tighten the positioning bolts against the drilling workbench to complete the fixation, and there are various fixing methods.

[0032] One of the main design points of this solution is that a base frame 2 is provided on the chassis 1, a rotating frame 3 is movably provided on the base frame 2, and the rotating frame 3 is rotatably connected to one end of the base frame 2. The angle between the rotating frame 3 and the base frame 2 can be adjusted through the rotating connection. The rotating frame 3 can be fixed at any angle to the base frame 2 on its rotation path through the connecting member 4. When adjusted to a suitable angle, the drill bit is aligned with the drilling position. Through the setting of the connecting member 4, the rotating frame 3 can be fixed, and then the drilling machine can be started to perform the drilling operation.

[0033] Specifically, two connecting plates 7 are installed on both sides of one end of the base frame 2 along the length direction. Figure 3 , and the highest end of the connecting plate 7 is not lower than the upper end surface of the rotating frame 3. A rotating shaft 8 is arranged between the two connecting plates 7, and the rotating shaft 8 penetrates the rotating frame 3 along the width direction of the rotating frame 3. The highest end of the connecting plate 7 is not lower than the upper end surface of the rotating frame 3 to ensure that both ends of the rotating shaft 8 also penetrate the connecting plate 7. The connecting plate 7 can be used for the rotation support of the rotating shaft 8, and the rotating shaft 8 is limited by the limiting nut 9 on the outside of the connecting plate 7. The limiting nut 9 is used to limit the rotating shaft 8 and fix it, and the rotating frame 3 can rotate around the rotating shaft 8.

[0034] The fixing of the rotating frame 3 and the base frame 2 is mainly achieved by connecting the connecting member 4. Figure 2 The connecting member 4 includes a strip plate 41 rotatably mounted on both sides of the base frame 2. The strip plate 41 is tilted upward and a waist-shaped hole 42 is provided in the strip plate 41. The waist-shaped hole 42 is provided along the length direction of the strip plate 41, and the rotating frame 3 is fixed at any position on the rotating path by cooperating with the waist-shaped hole 42 through a locking member 43. The fixing method adopts the form of bolt and nut cooperation. The locking member 43 includes a locking bolt 431 arranged on both sides of the rotating frame 3 and passing through the waist-shaped hole 42. The locking bolt 431 passes through the side surface of the rotating frame 3 on the inner side of the rotating frame 3, and one end with a thread extends out of the rotating frame 3, and the strip plate 41 is fixed by cooperating with the locking nut 432 and the locking bolt 431. The locking nut 432 adopts a butterfly nut, which is convenient for the rotation adjustment of the locking nut 432. When the angle of the rotating frame 3 needs to be adjusted, combined with Figure 4 , loosen the locking nut 432 until it is separated from the strip plate 41, drag the rotating frame 3 up and down to rotate around the rotating shaft 8, the locking bolt 431 slides along the waist-shaped hole 42, the rotating shaft 8 is at a suitable angle, and tighten the locking nut 432 until it is against the strip plate 41 to fix it.

[0035] It should be noted that the maximum rotation angle of the rotating frame 3 around the rotating shaft 8 is 30°-90°. This design ensures that the rotating frame 3 can have a larger rotation range, so that the driven parts can be adjusted within a larger range. However, if it exceeds 90°, the workpiece will be flipped in the drill area. If it rotates too much, drilling cannot be performed. Therefore, the maximum rotation angle of the rotating frame 3 can be determined by setting the length of the waist-shaped hole 42 and the initial inclination angle of the strip plate 41.

[0036] In order to achieve the clamping of the parts, the rotating frame 3 is provided with a first clamp 5 and a second clamp 6, and the distance between the first clamp 5 and the second clamp 6 can be adjusted. Specifically, the first clamp 5 is fixedly connected to the rotating frame 3, and the second clamp 6 can be moved in a direction toward or away from the first clamp 5 through a driving member 10, and the driving member 10 specifically includes a bearing seat 101 installed on one side of the second clamp 6, and is located on the side away from the first clamp 5. The bearing seat 101 is rotatably connected to a screw 102, and a rotating handle 104 is installed at the end of the screw 102 away from the second clamp 6. By setting the rotating handle 104, the rotation of the screw 102 can be facilitated. An adjusting nut 103 that is threadably matched with the lead screw 102 is fixedly mounted on the side away from the first clamp 5. When clamping a part, the workpiece is placed on the first clamp 5, and the lead screw 102 is rotated by turning the handle 104. Under the action of the thread of the adjusting nut 103, the second clamp 6 is driven to move toward the first clamp 5 until it abuts against the part to clamp it. The length of the rotating frame 3 is 2 / 3-5 / 6 of the length of the lead screw 102. The above design can ensure that the length of the lead screw 102 does not exceed the range that the second clamp 6 can move along the rotating frame 3. On the premise of ensuring that the distance adjustment can be completed, the overall structure of the clamp is more compact, saving space on the drilling machine workbench.

[0037] In order to facilitate material acquisition and save materials, the rotating frame 3 and the base frame 2 are designed as a rectangular frame structure composed of four square tubes. Under the premise of ensuring structural stability, it is convenient to obtain materials and assemble in the workshop, saving the cost of fixture production.

Claims

1. A multi-angle drilling fixture for parts, comprising a chassis (1) mounted on a drilling machine workbench, characterized in that: The chassis (1) is rotatably connected to the drilling machine workbench and can be fixed to the drilling machine workbench; The chassis (1) is provided with a base frame (2), the base frame (2) is provided with a rotating frame (3), and the rotating frame (3) is rotatably connected to one end of the base frame (2), and the rotating frame (3) can be fixed at any angle with the base frame (2) on its rotation path through a connecting piece (4); The rotating frame (3) is provided with a first clamp (5) and a second clamp (6), and the distance between the first clamp (5) and the second clamp (6) is adjustable.

2. The multi-angle drilling fixture for parts according to claim 1 is characterized in that: Two connecting plates (7) are installed on both sides of one end of the base frame (2) along the length direction, and the highest end of the connecting plate (7) is not lower than the upper end surface of the rotating frame (3); A rotating shaft (8) is arranged between the two connecting plates (7), and the rotating shaft (8) penetrates the rotating frame (3) along the width direction of the rotating frame (3), and the rotating shaft (8) is limited by a limiting nut (9) on the outside of the connecting plate (7).

3. The multi-angle drilling fixture for parts according to claim 2 is characterized in that: The connecting member (4) comprises a strip plate (41) rotatably mounted on both sides of the base frame (2), and a waist-shaped hole (42) is provided in the strip plate (41) along the length direction, and the rotating frame (3) is fixed at any position on the rotating path by means of a locking member (43) cooperating with the waist-shaped hole (42).

4. The multi-angle drilling fixture for parts according to claim 3 is characterized in that: The locking member (43) comprises locking bolts (431) arranged on both sides of the rotating frame (3) and passing through the waist-shaped holes (42), and the strip plate (41) is fixed by the cooperation of the locking nuts (432) and the locking bolts (431).

5. The multi-angle drilling fixture for parts according to claim 4 is characterized in that: The locking nut (432) is a butterfly nut.

6. The multi-angle drilling fixture for parts according to claim 2 is characterized in that: The maximum angle at which the rotating frame (3) rotates around the rotating shaft (8) is 30°-90°.

7. The multi-angle drilling fixture for parts according to claim 1 is characterized in that: The first clamp (5) is fixedly connected to the rotating frame (3), and the second clamp (6) can be moved in a direction toward or away from the first clamp (5) through a driving member (10).

8. The multi-angle drilling fixture for parts according to claim 7 is characterized in that: The driving member (10) comprises a bearing seat (101) mounted on one side of the second clamp (6) and located on a side away from the first clamp (5); the bearing seat (101) is rotatably connected to a lead screw (102); and an adjusting nut (103) threadably matched with the lead screw (102) is fixedly mounted on a side of the rotating frame (3) away from the first clamp (5).

9. The multi-angle drilling fixture for parts according to claim 8, characterized in that: The length of the rotating frame (3) is 2 / 3-5 / 6 of the length of the lead screw (102).

10. The multi-angle drilling fixture for parts according to claim 8, characterized in that: A rotating handle (104) is installed at one end of the lead screw (102) away from the second clamp (6).

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