Drilling clamp

Abstract

The utility model provides a drilling clamp. The drilling clamp comprises a bottom plate, a positioning plate, a rib plate, an inverted-T-shaped vertical plate, an upper pressing plate, a connecting pin, a fixing clamp, a drill bushing and a lower support. The positioning plate is fixed to the bottom plate, and a threaded hole is formed in the face, facing the cylindrical part, of the positioning plate and used for being connected with a connecting flange at the large-diameter end of the cylindrical part through a bolt. Two rib plates are arranged on one side, deviating from the cylindrical part, of the positioning plate, and the two rib plates are arranged in parallel at an interval; an inverted-T-shaped vertical plate is arranged between the two rib plates, and two shoulders of the inverted-T-shaped vertical plate are fixed to the bottom plate through bolts penetrating through the shoulders. The rear end of the upper pressing plate is provided with a fork and connected to the top end of the inverted-T-shaped vertical plate through a connecting pin. A vertical hole is formed in the front end of the upper pressing plate, and a drill bushing is arranged in the vertical hole; a fixing clamp is arranged beside the upper pressing plate at the top of the positioning plate; and a lower support is fixed on the front side of the positioning plate on the bottom plate. The clamping device can be used for stably clamping the cylindrical part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a clamp especially a drilling clamp. BACKGROUND

[0002] A cylindrical part 10, as shown in the drawings, comprises a large-diameter end 101 and a small-diameter end 102, both of which have a connecting flange; a cylindrical protrusion 103 is provided on the circumferential surface close to the small-diameter end 102, and a hole needs to be drilled in the cylindrical protrusion 103 to communicate with the internal cavity of the cylindrical part 10. Figure 1 Because the circumferential surface of the cylindrical part 10 has a taper, the ordinary clamp is not stable in clamping, which will affect the drilling precision.

[0003] SUMMARY In view of the deficiencies in the prior art, the utility model embodiment provides a drilling clamp which can stably clamp the cylindrical part and improve the drilling precision. To achieve the above technical purpose, the utility model embodiment adopts the technical scheme that:

[0004] The utility model embodiment provides a drilling clamp which comprises a bottom plate, a positioning plate, a web plate, an inverted T-shaped vertical plate, an upper pressing plate, a connecting pin, a fixed clamp, a drill sleeve and a lower support.

[0005] The positioning plate is fixed on the bottom plate, one side of the positioning plate facing the cylindrical part is provided with a threaded hole for connecting the connecting flange of the large-diameter end of the cylindrical part through a bolt; two web plates are provided on the side of the positioning plate away from the cylindrical part, and the two web plates are parallelly arranged at a distance apart; an inverted T-shaped vertical plate is provided between the two web plates, and the two shoulders of the inverted T-shaped vertical plate are fixed to the bottom plate through bolts passing through the shoulders; the rear end of the upper pressing plate is provided with a fork, and the fork is connected to the top end of the inverted T-shaped vertical plate through a connecting pin; the front end of the upper pressing plate is provided with a vertical hole, and a drill sleeve is arranged in the vertical hole; a fixed clamp is arranged on the side of the top of the positioning plate and the upper pressing plate; and a lower support is fixed on the front side of the positioning plate on the bottom plate.

[0006] Further, the top of the lower support is provided with a pad, and the top surface of the pad is adapted to the circumferential surface of the cylindrical part.

[0007] Further, the lower support comprises a bushing assembly and a support piece; the bushing assembly is provided with a vertical assembly hole and a horizontal connecting hole; the support piece comprises a vertical connecting part and a top support part, and the vertical connecting part is provided with a vertical long circular hole; the vertical connecting part of the support piece is inserted into the vertical assembly hole of the bushing assembly, and the vertical long circular hole of the support piece and the horizontal connecting hole of the bushing assembly are fixed through a screw.

[0008]

[0009] ​Further, the drilling clamp further comprises a front pressing plate, a rear pressing plate and a pull rod; the positioning plate is provided with a hole through which the pull rod passes; the front pressing plate is arranged on the front side of the small-diameter end of the cylindrical part, the rear pressing plate is arranged on the rear side of the positioning plate, and the pull rod passes through the rear pressing plate, the positioning plate, the cylindrical part and the front pressing plate, so that the front pressing plate and the rear pressing plate press the cylindrical part tightly on the positioning plate.

[0010] Further, the top of the positioning plate is further connected with a lifting ring.

[0011] The technical scheme provided by the embodiment of the utility model has the beneficial effects that:

[0012] 1) The positioning plate is connected with the connecting flange of the large-diameter end of the cylindrical part, the lower support supports the cylindrical part, the front pressing plate, the rear pressing plate and the pull rod press the cylindrical part tightly on the positioning plate, and the cylindrical part can be stably clamped.

[0013] 2) The upper pressing plate can be turned over, and the part to be machined can be conveniently and quickly assembled and disassembled.

[0014] 3) The upper pressing plate is provided with a drill sleeve at the front end, so as to prevent the drill sleeve from damaging the upper pressing plate. DRAWINGS

[0015] Figure 1 The drawing is a structural schematic view of the drilling clamp in the embodiment of the utility model.

[0016] Figure 2 The drawing is a structural schematic view of the lower support in the embodiment of the utility model.

[0017] Figure 3 The drawing is a structural schematic view of the inverted T-shaped vertical plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0019] As shown in the drawing, Figure 1 A drilling clamp 20 is provided in the embodiment of the utility model, which comprises a bottom plate 201, a positioning plate 202, a rib plate 203, an inverted T-shaped vertical plate 204, an upper pressing plate 205, a connecting pin 206, a fixed clamp 207, a drill sleeve 208 and a lower support 209.

[0020] The positioning plate 202 is fixed on the base plate 201. The side of the positioning plate 202 facing the cylindrical part 10 has a threaded hole for connecting the connecting flange of the large diameter end 101 of the cylindrical part 10 with bolts. Two stiffening plates 203 are provided on the side of the positioning plate 202 away from the cylindrical part 10. The two stiffening plates 203 are arranged parallel to each other at a distance. An inverted T-shaped upright plate 204 is provided between the two stiffening plates 203. The two shoulders of the inverted T-shaped upright plate 204 are fixed to the base plate 201 by bolts passing through the shoulders. The rear end of the upper pressure plate 205 has a fork and is connected to the top of the inverted T-shaped upright plate 204 by a connecting pin 206. The front end of the upper pressure plate 205 has a vertical hole and a drill sleeve 208 is provided in the vertical hole. A fixing clip 207 is provided on the side of the upper pressure plate 205 on the top of the positioning plate 202. A lower support 209 is fixed on the front side of the positioning plate 202 on the base plate 201.

[0021] When clamping the cylindrical part 10, first fix the lower support 209 on the base plate 201 to support the circumference of the cylindrical part 10. Then fix the connecting flange of the large diameter end 101 of the cylindrical part 10 to the front side of the positioning plate 202 with bolts. Then press down the upper pressure plate 205. The drill sleeve 208 at the front end of the upper pressure plate 205 is aligned with the cylindrical protrusion 103 on the circumference of the large diameter end 102 of the cylindrical part 10. Press the upper pressure plate 205 with the fixing clamp 207 to prevent the upper pressure plate 205 from moving during drilling. The drill bit drills a hole in the cylindrical protrusion 103 through the drill sleeve 208.

[0022] More preferably, the lower support 209 is provided with a pad 210 at its top, and the top surface of the pad 210 is adapted to the circumferential surface of the cylindrical part 10; so that the lower support 209 and the pad 210 can more stably support the cylindrical part 10.

[0023] More preferably, the lower support 209 includes a bushing 2091 and a support member 2092; the bushing 2091 has vertical mounting holes and horizontal connecting holes; as shown Figure 2 As shown, the support member 2092 includes a vertical connecting part 2092a and a top support part 2092b. The vertical connecting part 2092a is provided with a vertical elongated hole 2092c. When the vertical connecting part 2092a of the support member 2092 is inserted into the vertical mounting hole of the bushing 2091, it is fixed by inserting screws into the horizontal connecting hole of the bushing 2091 and the vertical elongated hole 2092c of the support member 2092. The height of the support member 2092 can be adjusted to adapt to cylindrical parts 10 of different sizes.

[0024] More preferably, the drilling fixture 20 further comprises a front pressing plate 211, a rear pressing plate and a pull rod; wherein the rear pressing plate and the pull rod are not shown in the figure; the positioning plate 202 is provided with a hole for the pull rod to pass through; the front pressing plate 211 is arranged on the front side of the small-diameter end 102 of the cylindrical part 10, the rear pressing plate is arranged on the rear side of the positioning plate 202, and the pull rod passes through the rear pressing plate, the positioning plate 202, the cylindrical part 10 and the front pressing plate 211, so that the front pressing plate 211 and the rear pressing plate press the cylindrical part 10 tightly on the positioning plate 202, and the clamping is more stable.

[0025] More preferably, the top of the positioning plate 202 is further connected with a lifting ring 212; so as to facilitate lifting and moving the drilling fixture 20.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A drill jig (20) characterized by, The device comprises a bottom plate (201), a positioning plate (202), a rib plate (203), an inverted T-shaped vertical plate (204), an upper pressing plate (205), a connecting pin (206), a fixing clamp (207), a drill sleeve (208), and a lower support (209). The positioning plate (202) is fixed on the bottom plate (201), and one side of the positioning plate (202) facing the cylindrical part (10) is provided with a threaded hole for connecting the connecting flange of the large-diameter end (101) of the cylindrical part (10) through a bolt; the other side of the positioning plate (202) away from the cylindrical part (10) is provided with two rib plates (203) which are parallelly arranged at a distance; an inverted T-shaped vertical plate (204) is arranged between the two rib plates (203), and the two shoulders of the inverted T-shaped vertical plate (204) are fixed on the bottom plate (201) through bolts passing through the shoulders; the rear end of the upper pressing plate (205) is provided with a fork, and the upper pressing plate (205) is connected to the top end of the inverted T-shaped vertical plate (204) through the connecting pin (206); the front end of the upper pressing plate (205) is provided with a vertical hole, and the drill sleeve (208) is arranged in the vertical hole; the fixing clamp (207) is arranged on the top of the positioning plate (202) beside the upper pressing plate (205); and the lower support (209) is fixed on the front side of the positioning plate (202) on the bottom plate (201).

2. The drill jig (20) according to claim 1, wherein The top of the lower support (209) is provided with a cushion block (210), and the top surface of the cushion block (210) is matched with the peripheral surface of the cylindrical part (10).

3. The drill jig (20) according to claim 1 or 2, wherein The lower support (209) comprises a bushing part (2091) and a support part (2092); the bushing part (2091) is provided with a vertical assembly hole and a horizontal connecting hole; the support part (2092) comprises a vertical connecting part (2092a) and a top support part (2092b), and the vertical connecting part (2092a) is provided with a vertical long circular hole (2092c); the vertical connecting part (2092a) of the support part (2092) is inserted into the vertical assembly hole of the bushing part (2091), and the bushing part (2091) and the support part (2092) are fixed through the horizontal connecting hole of the bushing part (2091) and the vertical long circular hole (2092c) of the support part (2092).

4. The drill jig (20) according to claim 1, wherein The drill jig (20) further comprises a front pressing plate (211), a rear pressing plate, and a pull rod; the positioning plate (202) is provided with a hole through which the pull rod passes; the front pressing plate (211) is arranged on the front side of the small-diameter end (102) of the cylindrical part (10), the rear pressing plate is arranged on the rear side of the positioning plate (202), the pull rod passes through the rear pressing plate, the positioning plate (202), the cylindrical part (10), and the front pressing plate (211), so that the front pressing plate (211) and the rear pressing plate press the cylindrical part (10) tightly on the positioning plate (202).

5. The drill jig (20) according to claim 1, wherein The top of the positioning plate (202) is further connected with a lifting ring (212).

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