CN217800397U

CN217800397U - Clamp for machining drill bit powder discharge groove

Info

Publication number: CN217800397U
Application number: CN202221250100.6U
Authority: CN
Inventors: 银丰; 甘海
Original assignee: Hunan Xinyanggang Construction Machinery Co ltd
Current assignee: Hunan Xinyanggang Construction Machinery Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-11-15
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses an anchor clamps for processing drill bit dust discharging groove, including barrel and ejector pin, the barrel has the centre gripping chamber that can hold the drill bit, is equipped with the through-hole that communicates with the centre gripping chamber on the barrel, and the ejector pin is arranged in running through the through-hole and inserts the tight fixed drill bit in top in the centre gripping chamber, and the ejector pin is connected with and is used for adjusting the ejector pin along the adjustment mechanism who inserts the degree of depth in centre gripping chamber. The fixture for machining the drill bit powder discharge groove has the advantages of convenience in operation, high machining efficiency and the like.

Description

Clamp for machining drill bit powder discharge groove

Technical Field

The utility model relates to a machining technology field, concretely relates to anchor clamps for processing drill bit dust discharging groove.

Background

With the rapid development of socialist modern construction industry, the use of percussion drill tools is becoming more and more extensive, such as drilling construction of special hydraulic and hydro-power engineering, building pile foundations, motor-pumped well engineering, national defense engineering, mine shafts and underground oil depots, installation of nuclear facilities and drilling of special experimental engineering, etc.

The down-the-hole drill bit is suitable for drilling hard and extremely hard rock strata, has good mechanical property and cutting property and is widely applied. In order to improve the cutting performance of the down-the-hole drill bit, a plurality of cutting layers are usually arranged at the bottom of the down-the-hole drill bit, tooth grooves are formed in the cutting layers, alloy teeth are embedded in the tooth grooves, and the inclination angles of the cutting layers are different, so that the alloy teeth cut into a rock stratum at a certain angle in the drilling process of the percussion drilling tool, the overall cutting efficiency of the drilling tool is improved, and the service life of the drilling tool is prolonged.

In the prior art, the tooth grooves on the down-the-hole drill bit are machined on a five-axis machining center, and the machining of the tooth grooves can be completed by inclining a machining main shaft and rotating 360 degrees around the machining main shaft, but the machining mode is high in manufacturing cost and low in machining efficiency.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a simple operation, high anchor clamps that are used for processing drill bit row powder groove of machining efficiency.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an anchor clamps for processing drill bit dust discharging groove, includes barrel and ejector pin, the barrel has the centre gripping chamber that can hold the drill bit, be equipped with on the barrel with the through-hole of centre gripping chamber intercommunication, the ejector pin is used for running through the through-hole inserts the tight fixed drill bit in top in the centre gripping chamber, the ejector pin is connected with and is used for adjusting the ejector pin is along radially inserting the adjustment mechanism of the degree of depth in centre gripping chamber.

Preferably, the adjusting mechanism comprises a telescopic oil cylinder connected with the ejector rod.

Preferably, the cylinder body is provided with a positioning groove, and the telescopic oil cylinder is provided with a positioning boss inserted into the positioning groove to form positioning.

Preferably, the telescopic oil cylinder is provided with a fixing groove convenient to fix.

Preferably, the bottom of the telescopic oil cylinder is provided with a sliding block.

Foretell anchor clamps for processing drill bit dust discharging groove, it is preferred, an anchor clamps for processing drill bit dust discharging groove still includes the elasticity check ring that has the breach, elasticity check ring is arranged in the centre gripping chamber and overlaps and establish the drill bit is outside, and can be pressed from both sides tightly by the inner wall mating reaction in ejector pin and centre gripping chamber the drill bit.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an anchor clamps for processing drill bit dust discharging groove adds man-hour, packs the drill bit into the centre gripping chamber, carries out the centre gripping to the drill bit through the chamber wall in ejector pin and centre gripping chamber, and the steadiness is good, the reliable operation. The ejector rod can adjust the depth of the ejector rod inserted into the clamping cavity, so that the drill bit can rotate by loosening the ejector rod, the drill bit is machined by 360 degrees, the operation is convenient and fast, and the machining efficiency is high; and moreover, the ejector rod can tightly push and fix the drill bit by adjusting the depth of the ejector rod inserted into the clamping cavity, so that the drill bits with different sizes are processed, and the flexibility is good. The clamp for machining the drill bit powder discharge groove also has the advantages of simple and compact structure, easiness in manufacturing and low cost.

Drawings

Fig. 1 is a schematic perspective view of a fixture for machining a drill bit powder discharge groove.

Fig. 2 is a schematic sectional structural view of a jig for machining a drill dust discharging groove.

FIG. 3 is a schematic top view of a fixture for machining a drill dust discharging groove.

Fig. 4 is a schematic perspective view of a fixture for machining a drill dust discharging groove, which is mounted on a machine tool.

Fig. 5 is a front view structural schematic diagram of a clamp for machining a drill powder discharge groove, which is arranged on a machine tool.

FIG. 6 is a side view of the fixture for machining the drill dust discharging groove mounted on the machine tool.

FIG. 7 is a schematic top view of a fixture for machining a dust discharging groove of a drill bit mounted on a machine tool.

Illustration of the drawings:

1. a telescopic oil cylinder; 11. positioning the boss; 12. a fixing groove; 13. a slider; 2. a barrel; 21. a through hole; 22. a positioning groove; 3. a clamping cavity; 4. an elastic locking ring; 5. a top rod; 100. a drill bit; 200. a base; 201. a chute; 300. a cutter; 400. an index plate.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 to 7, the fixture for machining the drill bit powder discharge groove of the embodiment includes a cylinder 2 and a push rod 5, the cylinder 2 has a clamping cavity 3 capable of accommodating a drill bit 100, the cylinder 2 is provided with a through hole 21 communicated with the clamping cavity 3, the push rod 5 is used for penetrating the through hole 21 and inserting into the clamping cavity 3 to push against and fix the drill bit 100, and the push rod 5 is connected with an adjusting mechanism for adjusting the depth of the push rod 5 radially inserting into the clamping cavity 3. During processing, pack into the centre gripping chamber 3 with drill bit 100, carry out the centre gripping through the chamber wall of ejector pin 5 and centre gripping chamber 3 to drill bit 100, the steadiness is good, reliable operation. The ejector rod 5 can adjust the depth of the drill bit inserted into the clamping cavity 3, so that the drill bit 100 can rotate by loosening the ejector rod 5, the drill bit 100 is machined by 360 degrees, the operation is convenient and fast, and the machining efficiency is high; moreover, the ejector rod 5 can tightly push and fix the drill bit 100 by adjusting the depth of the ejector rod 5 inserted into the clamping cavity 3, so that the drill bits 100 with different sizes can be processed, and the flexibility is good. The clamp for machining the drill bit powder discharge groove also has the advantages of simple and compact structure, easiness in manufacturing and low cost.

In this embodiment, the adjusting mechanism includes a telescopic cylinder 1 connected to the lift rod 5. The telescopic oil cylinder 1 is reliable in work and convenient for adjusting the depth of the mandril 5 inserted into the clamping cavity 3.

In this embodiment, the fixture for processing the drill powder discharge groove further comprises an elastic locking ring 4 with a notch, the elastic locking ring 4 is arranged in the clamping cavity 3 and sleeved outside the drill 100, and the drill 100 can be clamped by the cooperation of the ejector rod 5 and the inner wall of the clamping cavity 3. The elastic locking ring 4 can increase the contact area with the drill bit 100 and improve the stability. The ejector rod 5 moves towards the direction close to the elastic locking ring 4 to prop the elastic locking ring 4, the elastic locking ring 4 contracts in the circumferential direction, and the gap is reduced; the ejector rod 5 moves towards the direction far away from the elastic locking ring 4, the elastic locking ring 4 extends in the circumferential direction, and the gap is enlarged. The ejector rod 5 is matched with the elastic locking ring 4 to ensure that the elastic locking ring 4 is always coated on the drill bit 100. And the elastic locking ring 4 with different thicknesses can be replaced according to the size of the drill bit 100, so that the flexibility is good.

In this embodiment, the cylinder 2 is provided with a positioning groove 22, and the telescopic cylinder 1 is provided with a positioning boss 11 inserted into the positioning groove 22 to form positioning. Through location boss 11 and positioning groove 22 to the barrel 2 fix a position, be convenient for install barrel 2, can improve the installation accuracy moreover.

In this embodiment, when the fixture for machining the drill bit powder discharge groove is mounted on the machine tool, the telescopic cylinder 1 is fixed on the machine tool through a bolt. The machine tool comprises a base 200, a cutter 300 and an indexing disk 400 for driving the drill bit 100 in rotation. Be equipped with the fixed slot 12 of being convenient for to fix on telescopic cylinder 1, the bolt passes fixed slot 12 and fixes telescopic cylinder 1 chucking on the base 200 of lathe, and not only the installation is firm, the simple operation moreover.

In this embodiment, the bottom of the telescopic cylinder 1 is provided with a sliding block 13. The base 200 of the machine tool is provided with a sliding groove 201, and the sliding block 13 is inserted in the sliding groove 201 and can slide along the extending direction of the sliding groove 201, so that the clamp is driven to perform translational motion on the base 200 of the machine tool, and the position of the clamp on the base 200 is adjusted.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.

Claims

1. The utility model provides a anchor clamps for processing drill bit dust extraction groove which characterized in that: including barrel (2) and ejector pin (5), barrel (2) have centre gripping chamber (3) that can hold drill bit (100), be equipped with on barrel (2) with through-hole (21) of centre gripping chamber (3) intercommunication, ejector pin (5) are used for running through-hole (21) are inserted tight fixed drill bit (100) in centre gripping chamber (3), ejector pin (5) are connected with and are used for adjusting ejector pin (5) radially insert the adjustment mechanism of the degree of depth of centre gripping chamber (3).

2. The jig for machining a drill dust discharging groove according to claim 1, characterized in that: the adjusting mechanism comprises a telescopic oil cylinder (1) connected with the ejector rod (5).

3. The jig for machining a drill dust discharging groove according to claim 2, characterized in that: the telescopic oil cylinder is characterized in that a positioning groove (22) is formed in the cylinder body (2), and a positioning boss (11) inserted into the positioning groove (22) to form positioning is arranged on the telescopic oil cylinder (1).

4. The jig for machining a drill dust discharging groove according to claim 2, characterized in that: the telescopic oil cylinder (1) is provided with a fixing groove (12) convenient to fix.

5. The jig for machining the drill dust discharging groove according to claim 2, wherein: and a sliding block (13) is arranged at the bottom of the telescopic oil cylinder (1).

6. The jig for machining a drill dust discharging groove according to any one of claims 1 to 5, characterized in that: the fixture for machining the drill bit powder discharge groove further comprises an elastic locking ring (4) with a notch, wherein the elastic locking ring (4) is used for being arranged in the clamping cavity (3) and sleeved with the drill bit (100) externally, and can be clamped by the cooperation of the ejector rod (5) and the inner wall of the clamping cavity (3) tightly to form the drill bit (100).