CN216325349U

CN216325349U - Clamp for blind hole finish machining

Info

Publication number: CN216325349U
Application number: CN202122832211.XU
Authority: CN
Inventors: 吴博; 耿忠
Original assignee: Zhengzhou Hongtuo Precision Tools Co ltd
Current assignee: Zhengzhou Hongtuo Precision Tools Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-19
Anticipated expiration: 2031-11-18

Abstract

The clamp for finish machining of the blind hole effectively solves the problem of unstable clamping caused by irregularity of parts in the machining process, the clamp can be adjusted according to the clamped workpiece, so that the workpiece can be firmly clamped and simultaneously the scraps generated in the machining process can be cleaned, the technical scheme includes that the device comprises a guide rail and a slide rail which are arranged in parallel, and is characterized in that threads in opposite directions are arranged at two ends of the guide rail, moving blocks which are in sliding connection with the slide rail are respectively in threaded connection with two ends of the guide rail, arc-shaped grooves are arranged on the moving blocks, clamping rods are in sliding connection in the arc-shaped grooves, reset springs are respectively arranged between two ends of each clamping rod and the moving blocks, and protection devices for preventing scraps from rubbing surfaces of parts are vertically and slidably connected to the upper ends of the moving blocks.

Description

Clamp for blind hole finish machining

Technical Field

The utility model relates to a clamp device, in particular to a clamp for finish machining of blind holes.

Background

The hole is often required to be formed in the process of producing and manufacturing a workpiece, the formed hole is divided into a through hole and a blind hole, meanwhile, the formed hole is often required to be subjected to rough machining and then to be subjected to finish machining due to different use scenes and functional requirements, but the chips in the finish machining process can scratch the surface of the machined part, and meanwhile, all parts are not square or regular in shape, so that the phenomenon of loosening of the parts in the clamping process can be prevented for irregular parts and surfaces in the finish machining process, the chips generated in the machining process can be cleaned in real time, and the surfaces of the workpiece are prevented from being scratched by the generated chips.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation and overcoming the defects of the prior art, the utility model provides the clamp for finish machining of the blind hole, which effectively solves the problem of unstable clamping caused by the irregularity of parts in the machining process, can be adjusted according to a clamped workpiece, ensures that the workpiece is firmly clamped and simultaneously can clean chips generated in the machining process, the technical scheme of its solution is, including parallel arrangement's guide rail and slide rail, its characterized in that, opposite direction's screw thread has been seted up at the guide rail both ends, the guide rail both ends respectively threaded connection have simultaneously and slide connection's between the slide rail movable block, seted up the arc wall on the movable block, slide connection has the screens pole in the arc wall, is equipped with reset spring between screens pole both ends and the movable block respectively, the equal vertical sliding connection in each movable block upper end prevents that the piece from cutting the protection device that scratches to the part surface.

Preferably, the protection device comprises a lifting rod which is vertically and slidably connected to the moving block, the lower end of the lifting rod is vertically and threadedly connected with a lifting threaded rod, the lifting threaded rod is driven by a lifting motor fixedly connected to the moving block, the upper end of the lifting rod is transversely and slidably connected with a semicircular receiving disc, the circle center of the receiving disc is a semicircular through hole, and the upper end face of the receiving disc is obliquely arranged.

Preferably, the middle part of the guide rail is rotatably connected with a supporting block, a positioning threaded rod is connected to the supporting block through vertical threads, an auxiliary supporting plate is rotatably connected to the upper end of the positioning threaded rod, a guide rod extends downwards from the lower end face of the auxiliary supporting plate, the guide rod is vertically and slidably connected with the supporting block, and the auxiliary supporting plate is connected with the upper end of the supporting block through a small spring.

Preferably, the clamping rod is of an arc-shaped structure, the radian of the clamping rod is the same as that of the arc-shaped groove, and the two ends of the clamping rod are respectively provided with an anti-skid block.

Preferably, the bearing disc is connected with the lifting rod through a supporting spring, an arc-shaped protection strip is arranged at a through hole at the circle center of the bearing disc, and the arc-shaped protection strips respectively extend upwards and downwards out of the bearing disc.

Preferably, the bearing discs are symmetrically arranged, and corresponding side surfaces of the bearing discs are respectively provided with a clamping block and a clamping hole which are matched with each other.

Preferably, the lowest end of the upper end surface of the bearing disc, which is obliquely arranged, faces to the front side and is provided with a discharge hole.

Preferably, the lower end of the positioning threaded rod is fixedly connected with a positioning knob.

The utility model has the beneficial effects that:

1. the part can be stably clamped;

2. the shape and the current posture of the part are not limited, so that the adaptability is improved;

3. the cleaning problem in the processing process can clean the residue generated in the processing process and can clean the residue at the same time;

4. guiding and collecting the cleaned residues, wherein guiding force for the residues comes from the slope arranged obliquely and vibration of the machine.

Drawings

FIG. 1 is an overall schematic view of the present invention.

FIG. 2 is a second perspective view of the present invention.

FIG. 3 is a partial schematic view of the present invention.

Fig. 4 is a schematic view of the protection device of the present invention.

Fig. 5 is a second perspective view of the protection device of the present invention.

Reference numerals

1. A guide rail; 2. a slide rail; 3. a moving block; 4. a position clamping rod; 5. a return spring; 6. a lifting rod; 7. lifting a threaded rod; 8. a lifting motor; 9. a bearing plate; 10. a support block; 11. positioning a threaded rod; 12. an auxiliary support plate; 13. a guide bar; 14. a small spring; 15. anti-skid blocks; 16. an arc-shaped protection strip; 17. a clamping block; 18. a clamping hole; 19. a discharge port; 20. and positioning the knob.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 5.

When the embodiment is used, in an initial state, the moving blocks 3 at two ends of the guide rail 1 are respectively positioned outside the guide rail 1, the moving blocks 3 are simultaneously connected between the guide rail 1 and the slide rail 2, the moving blocks 3 are in threaded fit with the guide rail 1 and are in sliding fit with the slide rail 2, because two ends of the guide rail 1 are threads with opposite turning directions, the moving blocks 3 at two ends of the guide rail 1 can synchronously translate inwards or outwards in the rotating process of the guide rail 1, the middle parts of the guide rail 1 and the slide rail 2 are rotatably connected with the supporting blocks 10, the supporting blocks 10 are respectively in rotating connection with the guide rail 1 and the slide rail 2, so that the positions of the supporting blocks 10 in the rotating process of the guide rail 1 cannot be changed, the positioning threaded rods 11 are vertically in threaded fit with the supporting blocks 10, the upper ends of the positioning threaded rods 11 are rotatably connected with the auxiliary supporting plates 12, and the lower ends of the auxiliary supporting plates 12 are in vertical sliding fit with the supporting blocks 10, therefore, in the rotating process of the positioning threaded rod 11, the auxiliary supporting plate 12 is pushed upwards or downwards through threaded transmission, because the auxiliary supporting plate 12 is positioned below the clamping position of the clamping position rod 4, the lower end face of the current part can be changed in real time in the lifting process of the auxiliary supporting plate 12, the height of the lower end face support of the lifting part is equivalent to the height of the lower end face support of the lifting part in the lifting process of the supporting plate, so that a more proper clamping position can be found, after the auxiliary supporting plate is lifted to a proper position, the clamping position rods 4 positioned on the moving blocks 3 can clamp parts positioned in the middle, in the clamping process, the clamping position rods 4 which are slidably connected in arc-shaped grooves on the moving blocks 3 can move along with the moving blocks 3, because the clamping position rods 4 are arc-shaped, and the two ends of the clamping position rods 4 are respectively provided with the anti-skid blocks 15, when the clamping position rods 4 are in contact with the surface of the workpiece, if the clamping position rods 4 are in plane arrangement with the surface of the workpiece, then 4 both ends of screens pole contact simultaneously with between the work piece, if screens pole 4 is irregular face with the work piece contact surface, then can slide and the displacement at 4 tip of screens pole and work piece contact in-process, stop and press from both sides tightly after 4 both ends of screens pole all with work piece surface contact, it can make reset spring 5 hold power to slide in clamping process screens pole 4 in the arc wall, screens pole 4 can reset under 5 effects of each reset spring after loosening the work piece, it is tight convenient to press from both sides next time.

After clamping the parts, firstly positioning the part to be punched, generally positioning the hole to be processed at the middle part of the clamping rod 4, and reducing the deviation as much as possible, after positioning the workpiece, extending the finish machining drill bit from the top to the bottom and extending the finish machining drill bit into the hole to be processed through the gap part at the middle part of the protective device, when the protective device needs to be used, the lifting rods 6 at two ends can extend the semicircular bearing plates 9 upwards to prevent the bearing plates 9 from contacting with the workpiece, because the two bearing plates 9 extend inwards respectively and are connected through springs respectively, the two bearing plates 9 can contact and be positioned above the workpiece in the clamping process of the workpiece, then the two bearing plates 9 synchronously move downwards until contacting with the workpiece, and stop moving downwards, and a touch sensor can be arranged on the lower end surface of the bearing plates 9 when detecting the direct contact of the bearing plates 9 with the workpiece, after the positions of the two bearing discs 9 are determined, the fine machining drill bit positioned above downwards extends out of a through hole part of a connecting part of the two bearing discs 9, chips generated in the machining process can only upwards be conveyed along with a guide groove formed in the drill bit due to the fact that blind holes are machined, residues conveyed upwards can fall on the upper surface of the bearing discs 9, the chips falling on the plane have a tendency of oblique movement due to the fact that the upper surface of the bearing discs 9 are obliquely arranged, meanwhile, due to the fact that corresponding vibration phenomena can occur in the machining process of the machine, the residues on the oblique plane can be vibrated and displaced due to vibration generated in the machining process, due to the fact that the discharging hole 19 is formed in the obliquely arranged lower end of the upper surface of the bearing discs 9, the guided residues can be discharged outwards through the discharging hole 19, and only parts such as a collecting box need to be placed at the discharging hole 19, can collect the residue, prevent simultaneously carrying out the influence of in-process residue to processing workpiece surface, can also reduce the clearance time after processing is accomplished.

As the clamping block 17 and the clamping hole 18 which are correspondingly arranged are arranged between the two bearing plates 9, the bearing plates 9 can synchronously move in the driving process through the connected lifting motor 8, and the phenomenon that the connecting parts of the two bearing plates 9 are separated due to errors is reduced.

The lower terminal surface that supports spare part in the course of working is auxiliary supporting plate 12, auxiliary supporting plate 12 drives through location knob 20, location knob 20 rotates in rotation in-process drive location threaded rod 11, location threaded rod 11 can drive auxiliary supporting plate 12 and control the altitude control to the part, because auxiliary supporting plate 12 still leads through vertical sliding connection guide bar 13 on supporting shoe 10, so auxiliary supporting plate 12 only can go up and down, and auxiliary supporting plate 12 goes up and down to accomplish the back because be screw-thread fit between location threaded rod 11 and the supporting shoe 10, and the screw thread has the auto-lock characteristic, so auxiliary supporting plate 12 received reaction force can not drive auxiliary supporting plate 12 and remove, thereby the stability of support has been guaranteed.

Claims

1. The utility model provides a clamp for blind hole finish machining, includes parallel arrangement's guide rail (1) and slide rail (2), its characterized in that, opposite direction's screw thread has been seted up at guide rail (1) both ends, guide rail (1) both ends respectively threaded connection have simultaneously with slide rail (2) between sliding connection's movable block (3), seted up the arc wall on movable block (3), sliding connection has screens pole (4) in the arc wall, is equipped with reset spring (5) between screens pole (4) both ends and movable block (3) respectively, the equal vertical sliding connection in each movable block (3) upper end prevents that the piece from cutting the protection device of rubbing to the part surface.

2. The clamp for the finish machining of the blind hole as claimed in claim 1, wherein the protection device comprises a lifting rod (6) vertically slidably connected to the moving block (3), a lifting threaded rod (7) is vertically and threadedly connected to the lower end of the lifting rod (6), the lifting threaded rod (7) is driven by a lifting motor (8) fixedly connected to the moving block (3), a semicircular receiving disc (9) is transversely and slidably connected to the upper end of the lifting rod (6), the circle center of the receiving disc (9) is a semicircular through hole, and the upper end face of the receiving disc (9) is obliquely arranged.

3. The clamp for the finish machining of the blind hole as claimed in claim 1, wherein a supporting block (10) is rotatably connected to the middle portion of the guide rail (1), a positioning threaded rod (11) is connected to the supporting block (10) in a vertical threaded manner, an auxiliary supporting plate (12) is rotatably connected to the upper end of the positioning threaded rod (11), a guide rod (13) extends downwards from the lower end face of the auxiliary supporting plate (12), the guide rod (13) is vertically and slidably connected with the supporting block (10), and the auxiliary supporting plate (12) is connected with the upper end of the supporting block (10) through a small spring (14).

4. The clamp for finish machining of the blind hole according to claim 1, wherein the clamping rod (4) is of an arc-shaped structure, the radian of the clamping rod (4) is the same as that of the arc-shaped groove, and the two ends of the clamping rod are respectively provided with the anti-skidding blocks (15).

5. The clamp for finish machining of the blind hole as claimed in claim 2, wherein the bearing disc (9) is connected with the lifting rod (6) through a supporting spring, an arc-shaped protection strip (16) is arranged at a through hole at the circle center part of the bearing disc (9), and the arc-shaped protection strips (16) respectively extend upwards and downwards out of the bearing disc (9).

6. The clamp for the finish machining of the blind hole as claimed in claim 2, wherein the bearing disc (9) is symmetrically arranged, and corresponding side surfaces are respectively provided with a clamping block (17) and a clamping hole (18) which are matched with each other.

7. The jig for finish machining of blind holes as set forth in claim 2, wherein the lowest end of the upper end surface of the receiving tray (9) arranged obliquely faces the front side and is provided with a discharge port (19).

8. A blind hole finishing jig according to claim 3, characterized in that the lower end of the positioning threaded rod (11) is fixedly connected with a positioning knob (20).