Special fixture for drilling rack parts

Abstract

The utility model discloses a special fixture for drilling rack parts, and belongs to the technical field of machine tool fixtures. The device comprises a bottom plate which is connected with a clamp seat, and is characterized in that the upper side of the clamp seat is connected with a turning cover blocking assembly and a heightening seat, the part, above the clamp seat, of the heightening seat is detachably connected with one end of a transmission shaft support in a sleeved mode, the other end of the transmission shaft support is detachably connected with a support fixing seat in a sleeved mode, and the support fixing seat is connected with the turning cover blocking assembly in a sleeved mode. The support fixing seat is connected to the upper side of the clamp seat, a clamping nail is movably arranged in the middle of the heightening seat, the clamping nail can clamp the transmission shaft support, the clamping nail penetrates through the clamp seat and extends into the clamp seat, and a connecting rod is in pin joint with the inner end of the clamp seat. The positioning precision and stability of the clamp can be improved, the structure of the clamp is optimized, the adjusting operation is simplified, the machining efficiency is improved, the machining requirements of transmission shaft supports of different specifications can be met, and the manufacturing cost and the time cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool fixtures, and particularly relates to a special fixture for drilling rack parts. Background Art

[0002] As a key component of a machine tool fixture, the processing precision and assembly efficiency of a drive shaft bracket have a decisive impact on product quality and production efficiency. As a key auxiliary tool in the processing process, the design and performance of a drive shaft bracket fixture are directly related to the manufacturing quality of the bracket.

[0003] At present, most of the drive shaft bracket fixtures on the market are designed based on traditional mechanical structures. Although they can meet the basic positioning and clamping requirements, they still have deficiencies in high-precision and high-efficiency processing. Existing fixtures often have complex structures, cumbersome operations, and high technical requirements for operators, resulting in difficult-to-achieve ideal processing efficiency and precision.

[0004] The problems existing in the existing drive shaft bracket fixtures are mainly reflected in the following aspects: First, the positioning accuracy of the fixture is not high, making it difficult to meet the requirements of high-precision processing; second, the fixture adjustment is complex and the operation is inconvenient, affecting the processing efficiency; third, the fixture has poor adaptability, and different fixtures need to be replaced for drive shaft brackets of different specifications, increasing the manufacturing cost and time cost. Summary of the Utility Model

[0005] The utility model aims at the above problems, makes up for the deficiencies of the prior art, and provides a special fixture for drilling rack parts. The utility model can improve the positioning accuracy and stability of the fixture, optimize the fixture structure, simplify the adjustment operation, improve the processing efficiency, and can meet the processing requirements of drive shaft brackets of different specifications, reducing the manufacturing cost and time cost.

[0006] To achieve the above object, the utility model adopts the following technical solutions.

[0007] The utility model provides a special fixture for drilling rack parts, which includes a bottom plate. A fixture seat is connected to the bottom plate. It is characterized in that a flip-blocking component and a heightening seat are connected to the upper side of the fixture seat. One end of a transmission shaft support is detachably sleeved on the upper part of the heightening seat above the fixture seat. The other end of the transmission shaft support is detachably sleeved with a support fixing seat. The support fixing seat is connected to the upper side of the fixture seat. A clamping nail is movably arranged in the middle of the heightening seat. The clamping nail can clamp the transmission shaft support. The clamping nail passes through the fixture seat and extends into the interior of the fixture seat. And a connecting rod is pinned at the inner end of the fixture seat. A support is hinged on the connecting rod. The support is fixed on the inner wall of the fixture seat. A wedge block is arranged at one end of the connecting rod. An inclined groove is arranged on the wedge block. The end of the connecting rod is located in the inclined groove and can move along the inclined groove. The wedge block is arranged in a guide rail and can move along the guide rail. The guide rail is fixed on the bottom plate. A telescopic power mechanism is connected to the side of the wedge block. The telescopic power mechanism is connected to the inner wall of the fixture seat.

[0008] Further, the flip-blocking component includes a support, a drill sleeve plate and a drill sleeve. The support is connected to the fixture seat. The drill sleeve plate is hinged to the support through a shaft. The drill sleeve is fixed on the lower side of the drill sleeve plate. After the drill sleeve plate is closed, it corresponds to the top surface of the heightening seat.

[0009] Furthermore, sleeves are arranged on both sides of the shaft.

[0010] Further, the lower surface of the front end of the transmission shaft support contacts the heightening seat. The lower surface of the rear end of the transmission shaft support contacts the fixture seat. A gasket is also detachably arranged at the front end of the transmission shaft support. After the gasket is installed, its lower surface contacts the upper surface of the front end of the transmission shaft support. After the gasket is installed, its upper surface contacts the clamping nail.

[0011] Further, the clamping nail and the connecting rod are pinned through screws and split pins.

[0012] Further, the telescopic power mechanism includes a cylinder, a cylinder frame and a double-ear fixed seat. The steel frame is connected to the inner upper part of the fixture seat. The cylinder is connected to the cylinder frame through the double-ear fixed seat. The output rod of the cylinder is rigidly connected to the wedge block.

[0013] Further, a roller is arranged at the end of the connecting rod located in the inclined groove of the wedge block. The connecting rod can swing obliquely in the inclined groove through the roller.

[0014] Further, a compression spring is inserted into the bottom side of the end of the connecting rod away from the wedge block. A spring sleeve corresponding to the compression spring is connected to the bottom plate. The compression spring is located in the spring sleeve.

[0015] Further, a release button and a clamping button are arranged on the fixture base. Both the release button and the clamping button are electrically connected to the telescopic power mechanism and an external controller. By pressing the release button, the telescopic power mechanism is controlled to eject the wedge block so that the clamping nail releases the transmission shaft bracket. By pressing the clamping button, the wedge block is pulled back so that the clamping nail clamps the transmission shaft bracket.

[0016] Furthermore, a sleeve is arranged on the fixture base at a position corresponding to the transmission shaft bracket. A proximity switch is arranged inside the sleeve. The proximity switch is electrically connected to an external controller and cooperates with the release button and the clamping button. When the proximity switch detects that the transmission shaft bracket is installed, the release button and the clamping button can control the telescopic power mechanism.

[0017] Advantages of the present utility model.

[0018] The present utility model can accurately fix the position of the transmission shaft bracket, effectively prevent errors caused by vibration or movement during the processing, thereby ensuring the improvement of processing accuracy; through the standardized and normalized operation of the fixture, the consistency of each processing can be ensured, thereby steadily improving the product quality; the stable clamping function can effectively prevent the accidental movement or falling off of the workpiece during the processing, thereby ensuring the safety of workers and equipment; through modularization and versatility, it can adapt to the processing requirements of different specifications and models of transmission shaft brackets, improving the flexibility and application range of the fixture. Description of the drawings

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] Figure 1 is the front view of the present utility model.

[0021] Figure 2 is the left sectional view of the present utility model.

[0022] Figure 3 is the top view of the present utility model.

[0023] Figure 4 is the three-dimensional view of the main components of the present utility model.

[0024] Figure 5 is the three-dimensional schematic diagram when the present utility model is feeding.

[0025] Figure 6 It is a three-dimensional schematic diagram when blanking the utility model.

[0026] Markings in the figure: 1 is a bracket, 2 is a shaft, 3 is an outer sleeve, 4 is a drill bushing, 5 is a sleeve, 6 is a proximity switch, 7 is a cylinder frame, 8 is a double-ear fixed seat, 9 is a cylinder, 10 is a spring sleeve, 11 is a split pin, 12 is a screw, 13 is a heightening seat, 14 is a clamping nail, 15 is a support, 16 is a connecting rod, 17 is a compression spring, 18 is a guide rail, 19 is a roller, 20 is a wedge block, 21 is a bottom plate, 22 is a fixture seat, 23 is a drill bushing plate, 24 is a drive shaft support, 25 is a bracket fixed seat, 26 is a release button, 27 is a gasket, 28 is a clamping button. Specific implementation mode

[0027] As shown in the accompanying drawings, this implementation mode provides a special fixture for drilling rack parts, including a bottom plate 21, a fixture seat 22 is connected to the bottom plate 21, and a flip cover blocking component and a heightening seat 13 are connected to the upper side of the fixture seat 22.

[0028] The flip cover blocking component includes a bracket 1, a drill bushing plate 23 and a drill bushing 4. The bracket 1 is connected to the fixture seat 22, and the drill bushing plate 23 is hinged to the bracket 1 through a shaft 2. It is required that the drill bushing plate 23 can be flipped to 270°. Outer sleeves 3 are provided on both sides of the shaft 2, and the drill bushing 4 is fixed to the lower surface of the drill bushing plate 23. After the drill bushing plate 23 is closed, it corresponds to the top surface of the heightening seat 13.

[0029] One end of a drive shaft support 24 is detachably sleeved on the upper part of the heightening seat 13 above the fixture seat 22, and the other end of the drive shaft support 24 is detachably sleeved with a bracket fixed seat 25. The bracket fixed seat 25 is connected to the upper side of the fixture seat 22 to complete the installation and positioning of the drive shaft support 24.

[0030] A clamping nail 14 is movably arranged in the middle of the heightening seat 13. The clamping nail 14 can clamp the drive shaft support 24. When the drive shaft support 24 is installed, the lower surface of the front end contacts the heightening seat 13, and the lower surface of the rear end contacts the fixture seat 22. A gasket 27 is also detachably arranged at the front end of the drive shaft support 24. After the gasket 27 is installed, the lower surface contacts the upper surface of the front end of the drive shaft support 24, and the upper surface contacts the clamping nail 14. When the drill bushing plate 23 is covered, the drill bushing 4 is aligned with the vacant positions on the gasket 27 and the drive shaft support 24.

[0031] The clamping nail 14 passes through the fixture seat 22 and extends into the interior of the fixture seat 22, and a connecting rod 16 is pinned at the inner end of the fixture seat 22. The clamping nail 14 and the connecting rod 16 are pinned through a screw 12 and a split pin 11.

[0032] A support 15 is hinged on the connecting rod 16, and the support 15 is fixed on the inner wall of the fixture seat 22. The support 15 serves as the fulcrum for the movement of the connecting rod 16.

[0033] One end of the connecting rod 16 is provided with a wedge block 20. An inclined groove is provided on the wedge block 20. The end of the connecting rod 16 is located in the inclined groove and can move along the inclined groove. A roller 19 is provided at the end of the connecting rod 16 located in the inclined groove of the wedge block 20. The wedge block 20 is tangent to the roller 19. The connecting rod 16 can swing obliquely in the inclined groove through the roller 19. A compression spring 17 is inserted into the bottom side of the end of the connecting rod 16 far from the wedge block 20. A spring sleeve 10 is connected to the bottom plate 21 corresponding to the compression spring 17. The compression spring 17 is located inside the spring sleeve 10.

[0034] The wedge block 20 is arranged in the guide rail 18 and can move along the guide rail 18. The guide rail 18 is fixed on the bottom plate 21. A telescopic power mechanism is connected to the side of the wedge block 20. The telescopic power mechanism is connected to the inner wall of the fixture seat 22.

[0035] The telescopic power mechanism includes a cylinder 9, a cylinder frame 7, and a double-ear fixed seat 8. The steel frame is connected to the inner part of the fixture seat 22. The cylinder 9 is connected to the cylinder frame 7 through the double-ear fixed seat 8. The output rod of the cylinder 9 is rigidly connected to the wedge block 20.

[0036] A release button 26 and a clamping button 28 are arranged on the fixture seat 22. Both the release button 26 and the clamping button 28 are electrically connected (not shown in the figure) to the telescopic power mechanism and an external controller. By pressing the release button 26, the telescopic power mechanism is controlled to push out the wedge block 20 to loosen the clamping nail 14 from the transmission shaft bracket 24. By pressing the clamping button 28, the wedge block 20 is pulled back to clamp the transmission shaft bracket 24 with the clamping nail 14.

[0037] A sleeve 5 is arranged on the fixture seat 22 at the position corresponding to the transmission shaft bracket 24. A proximity switch 6 is arranged inside the sleeve 5. The proximity switch 6 is electrically connected to an external controller and cooperates with the release button 26 and the clamping button 28. When the proximity switch 6 detects that the transmission shaft bracket 24 is installed, the release button 26 and the clamping button 28 can control the telescopic power mechanism.

[0038] The specific operation steps are as follows:

[0039] 1. Place the blank on the support 1 elevation seat 13 and align the central through hole with the clamping nail 14. The tail end is accurately placed on the support fixed seat 25.

[0040] 2. Cover the spacer 27 on the transmission shaft bracket 24, screw it to the correct position, flip the drill bushing plate 23, fix the transmission shaft bracket 24, and press the clamping button 28.

[0041] 3. The compressed compression spring 17 rebounds, causing one end of the adjacent connecting rod 16 to rotate upward around the support 15, the clamping pin 14 to move downward, and the transmission shaft bracket 24 to be clamped, touching the proximity switch 6; the other end of the connecting rod 16 rotates downward, and the wedge block 20 thus retreats on the guide rail 18 of the wedge block 20.

[0042] 4. Turn on the external control power switch to start processing.

[0043] 5. The machine tool drills the transmission shaft bracket 24 through the drill bushing 4 on the drill bushing plate 23.

[0044] 6. After processing is completed, press the release button 26.

[0045] 7. The air cylinder 9 pushes the wedge block 20 to move forward on the guide rail 18, driving one end of the adjacent and tangent connecting rod 16 to rotate upward around the support 15, the clamping pin 14 to move upward, and the clamping state of the transmission shaft bracket 24 to be cancelled; the other end of the connecting rod 16 rotates downward, and the compression spring 17 is compressed.

[0046] 8. Lift the drill bushing plate 23, remove the gasket 27, and remove the transmission shaft bracket 24.

[0047] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirements are met, they are all within the protection scope of the present invention.

Claims

1. A special fixture for drilling rack parts, including a bottom plate (21), wherein a fixture base (22) is connected to the bottom plate (21), and is characterized in that, On the upper side of the fixture base (22), a flip cover blocking component and a heightening base (13) are connected. One end of a transmission shaft support (24) is detachably sleeved above the fixture base (22) on the heightening base (13). The other end of the transmission shaft support (24) is detachably sleeved with a support fixing base (25). The support fixing base (25) is connected to the upper side of the fixture base (22). A clamping nail (14) is movably arranged in the middle of the heightening base (13). The clamping nail (14) can clamp the transmission shaft support (24). The clamping nail (14) passes through the fixture base (22) and extends into the interior of the fixture base (22). And a connecting rod (16) is pinned at the inner end of the fixture base (22). A support (15) is hinged on the connecting rod (16). The support (15) is fixed on the inner wall of the fixture base (22). One end of the connecting rod (16) is provided with a wedge block (20). The wedge block (20) is provided with an inclined groove. The end of the connecting rod (16) is located in the inclined groove and can move along the inclined groove. The wedge block (20) is arranged in a guide rail (18) and can move along the guide rail (18). The guide rail (18) is fixed on the bottom plate (21). A telescopic power mechanism is connected to the side of the wedge block (20). The telescopic power mechanism is connected to the inner wall of the fixture base (22).

2. The special fixture for drilling the frame part according to claim 1, characterized in that The flip cover blocking component includes a support (1), a drill sleeve plate (23) and a drill sleeve (4). The support (1) is connected to the fixture base (22). The drill sleeve plate (23) is hinged to the support (1) through a shaft (2). The drill sleeve (4) is fixed on the lower side surface of the drill sleeve plate (23). After the drill sleeve plate (23) is closed, it corresponds to the top surface of the heightening base (13).

3. The special fixture for drilling of a frame part according to claim 2, characterized in that, Covers (3) are arranged on both sides of the shaft (2).

4. The special fixture for drilling the frame part according to claim 1, characterized in that, The lower surface of the front end of the transmission shaft support (24) contacts the heightening base (13). The lower surface of the rear end of the transmission shaft support (24) contacts the fixture base (22). A gasket (27) is also detachably arranged at the front end of the transmission shaft support (24). After the gasket (27) is installed, its lower surface contacts the upper surface of the front end of the transmission shaft support (24). After the gasket (27) is installed, its upper surface contacts the clamping nail (14).

5. The special fixture for drilling of the rack part according to claim 1, characterized in that The clamping nail (14) and the connecting rod (16) are pinned through a screw (12) and a split pin (11).

6. The special fixture for drilling of a frame part according to claim 1, characterized in that, The telescopic power mechanism includes a cylinder (9), a cylinder frame (7) and a double-ear fixing seat (8). The cylinder frame (7) is connected to the inner upper part of the fixture base (22). The cylinder (9) is connected to the cylinder frame (7) through the double-ear fixing seat (8). The output rod of the cylinder (9) is rigidly connected to the wedge block (20).

7. The special fixture for drilling the rack part according to claim 1, characterized in that, A roller (19) is arranged at the end of the connecting rod (16) located in the inclined groove of the wedge block (20). The connecting rod (16) can swing obliquely in the inclined groove through the roller (19).

8. The special fixture for drilling of a frame part according to claim 1, characterized in that, A compression spring (17) is inserted into the bottom side of the end of the connecting rod (16) away from the wedge block (20). A spring sleeve (10) is connected to the bottom plate (21) corresponding to the compression spring (17), and the compression spring (17) is located within the spring sleeve (10).

9. The special fixture for drilling of a frame part according to claim 1, characterized in that, A release button (26) and a clamping button (28) are provided on the fixture seat (22). Both the release button (26) and the clamping button (28) are electrically connected to the telescopic power mechanism and an external controller. By pressing the release button (26), the telescopic power mechanism is controlled to eject the wedge block (20) so that the clamping nail (14) releases the transmission shaft bracket (24). By pressing the clamping button (28), the wedge block (20) is pulled back so that the clamping nail (14) clamps the transmission shaft bracket (24).

10. The special fixture for drilling the frame part according to claim 9, characterized in that, A sleeve (5) is provided on the fixture seat (22) at a position corresponding to the transmission shaft bracket (24). A proximity switch (6) is arranged within the sleeve (5). The proximity switch (6) is electrically connected to an external controller and cooperates with the release button (26) and the clamping button (28). Only when the proximity switch (6) detects that the transmission shaft bracket (24) is installed can the release button (26) and the clamping button (28) control the telescopic power mechanism.

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