CN214870529U

CN214870529U - Automatic center punch

Info

Publication number: CN214870529U
Application number: CN202121347878.4U
Authority: CN
Inventors: 蔡可宁; 张海斌
Original assignee: NINGBO TIANGONG JUXING TOOL CO Ltd
Current assignee: NINGBO TIANGONG JUXING TOOL CO Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-26
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses an automatic center dashes, including end connection head and ejection mechanism, end connection head's bottom is equipped with the middle part sleeve, and the telescopic bottom in middle part is equipped with the afterbody sleeve, and ejection mechanism includes the jumper bar, and the bottom of jumper bar is equipped with the movable block, and the bottom of movable block is equipped with the inserted bar, and the outer wall cover of inserted bar is equipped with eccentric spring, and eccentric spring's below is equipped with the extrusion piece, and the patchhole has been seted up at the top of extrusion piece, and the bottom of extrusion piece is equipped with reset spring, the solid fixed ring of the telescopic inner wall fixedly connected with in middle part. The utility model discloses utilize the movable block, insert pole, eccentric spring, extrusion piece and reset spring's setting, form a structure that can exert big effort such as a lot of to the jumper bar through the movable block, insert pole, eccentric spring, extrusion piece and reset spring, make the center dash the degree of depth and the definition that the dot is out in every impact the same, improved the work quality that the center dashes.

Description

Automatic center punch

Technical Field

The utility model relates to a central towards technical field, in particular to automatic central towards.

Background

The center punch is a steel short rod-shaped bench worker tool. One end has a conical tip, and a small round point is formed on the workpiece by using the conical tip, so that the round point is used as a mark of a circle center or other point line positions, and the subsequent work is not facilitated.

At present, the center punch is mostly made of a solid metal rod, when the center punch is used, a worker can press the center punch downwards with force to punch small round points on a workpiece, the depth and the definition of the small round points are punched in the process and completely depend on the force application size of the worker, the depth and the definition of the small round points on a single workpiece are different easily, and the lower working quality of the center punch is reflected.

Disclosure of Invention

An object of the utility model is to provide an automatic center dashes to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic center punch comprises an end connector and an ejection mechanism, wherein a middle sleeve is arranged at the bottom of the end connector, and a tail sleeve is arranged at the bottom of the middle sleeve;

the ejection mechanism comprises a plunger, the plunger is arranged inside the end connector in a sliding manner, a movable block is arranged at the bottom end of the plunger, an insertion rod is fixedly connected to the bottom of the movable block, an eccentric spring is sleeved on the outer wall of the insertion rod, an extrusion block is arranged below the eccentric spring, an insertion hole is formed in the top of the extrusion block, a reset spring is arranged at the bottom of the extrusion block, a fixing ring is fixedly connected to the inner wall of the middle sleeve, a first annular chamfer is formed in the top of the fixing ring, and a second annular chamfer is formed in the bottom of the movable block.

Preferably, the bottom of the end connector is fixedly connected with a first connecting ring, a first annular groove is formed in the inner wall of the middle sleeve, and the outer wall of the first connecting ring is in threaded connection with the inner wall of the first annular groove.

Preferably, the bottom of the middle sleeve is fixedly connected with a second connecting ring, the inner wall of the tail sleeve is provided with a second annular groove, and the outer wall of the second connecting ring is in threaded connection with the inner wall of the second annular groove.

Preferably, the inner cavity of the end connector is arranged in an inverted T shape, and the plunger is arranged in an inverted T shape.

Preferably, the bottom of the tail sleeve is fixedly connected with a connecting belt, and one end of the connecting belt is fixedly connected with a hanging ring.

The utility model discloses a technological effect and advantage:

(1) the utility model utilizes the arrangement of the movable block, the insertion rod, the eccentric spring, the extrusion block and the reset spring to form a structure which can apply large acting force to the punch rod for many times through the movable block, the insertion rod, the eccentric spring, the extrusion block and the reset spring, so that the depth and the definition of the round point which is impacted by the center punch each time are the same, and the working quality of the center punch is improved;

(2) the utility model discloses utilize the setting of connecting band and link, make the center dash to be convenient for carry through connecting band and link, improved the portability that the center dashed.

Drawings

Fig. 1 is a schematic front sectional view of the present invention.

Fig. 2 is the sectional structure diagram of the tail casing of the present invention.

Fig. 3 is the cross-sectional structure of the middle sleeve.

In the figure: 1. an end connector; 2. a middle sleeve; 3. a tail sleeve; 4. punching; 5. a movable block; 6. an eccentric spring; 7. extruding the block; 8. a return spring; 9. a fixing ring; 10. a first connecting ring; 11. a second connection ring; 12. a connecting belt; 13. hanging a ring; 14. the rod is inserted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an automatic center punch as shown in figures 1-3, which comprises an end connector 1 and an ejection mechanism, wherein the bottom of the end connector 1 is provided with a middle sleeve 2, the bottom of the middle sleeve 2 is provided with a tail sleeve 3, and only one end of the tail sleeve 3 is an opening;

the ejection mechanism comprises a punch 4, the punch 4 is arranged inside the end connector 1 in a sliding manner, the inner cavity of the end connector 1 is arranged in an inverted T shape, the punch 4 is arranged in the inverted T shape, the punch 4 arranged in the T shape is movably clamped with the end connector 1 with the inner cavity in the T shape, a movable block 5 is arranged at the bottom end of the punch 4, an insertion rod 14 is fixedly connected to the bottom of the movable block 5, an eccentric spring 6 is sleeved on the outer wall of the insertion rod 14, the eccentric spring 6 mainly guides the insertion rod 14 to deflect except driving the insertion rod 14 and the punch 4 to automatically do reset motion, an extrusion block 7 is arranged below the eccentric spring 6, an insertion hole is formed in the top of the extrusion block 7, a reset spring 8 is arranged at the bottom of the extrusion block 7, the reset spring 8 can generate elastic deformation to drive the extrusion block 7 to automatically do reset motion, meanwhile, the distance from the movable block 5 to a fixed ring 9 is the same, so that the length of the reset spring 8 and the acting force applied to the extrusion block 7 are the same every time, the inner wall of the middle sleeve 2 is fixedly connected with a fixing ring 9, the top of the fixing ring 9 is provided with a first annular chamfer, the bottom of the movable block 5 is provided with a second annular chamfer, and the first annular chamfer and the second annular chamfer are used for correcting the insertion rod 14;

the bottom of the end connector 1 is fixedly connected with a first connecting ring 10, the first connecting ring 10 and a first annular groove are used for connecting the end connector 1 and the middle sleeve 2, the inner wall of the middle sleeve 2 is provided with the first annular groove, and the outer wall of the first connecting ring 10 is in threaded connection with the inner wall of the first annular groove;

the bottom of the middle sleeve 2 is fixedly connected with a second connecting ring 11, the second connecting ring 11 and a second annular groove are used for connecting the middle sleeve 2 and the tail sleeve 3, a second annular groove is formed in the inner wall of the tail sleeve 3, and the outer wall of the second connecting ring 11 is in threaded connection with the inner wall of the second annular groove;

the bottom of the tail sleeve 3 is fixedly connected with a connecting band 12, one end of the connecting band 12 is fixedly connected with a hanging ring 13, and the connecting band 12 and the hanging ring 13 enable the center punch to be convenient to carry.

The utility model discloses the theory of operation:

when the central punch is needed to punch round points on a workpiece, firstly, the central punch is vertically placed right above the position of the round points to be punched, then the tip end of the punch rod 4 is abutted against the position of the round points to be punched, then a vertically downward acting force is applied to the middle sleeve 2 or the tail sleeve 3, the punch rod 4 moves into the end connector 1, at the moment, the punch rod 4 can drive the movable block 5 and the inserting rod 14 to move, the inserting rod 14 in the movement generates angular deviation due to the deformation of the eccentric spring 6, so that the inserting rod 14 can be dislocated with an inserting hole formed in the extrusion block 7, the dislocated inserting rod 14 can drive the extrusion block 7 to move and extrude the reset spring 8 to generate deformation of the reset spring 8, when the movable block 5 moves to the position of the fixed ring 9, a second annular chamfer is formed on the movable block 5 and a first annular chamfer formed on the fixed ring (9) are attached, therefore, the inserting rod 14 can be driven to do correcting movement, the corrected inserting rod 14 can enter the inserting hole, meanwhile, the extrusion block 7 can generate an impact force to the inserting rod 14 in the inserting hole under the action of the reset spring 8, the impact force can drive the punch rod 4 to perform dot punching work, and when dot punching work is required to be performed on the next position, the steps are repeated.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard parts that use all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic center punch comprises an end connector (1) and an ejection mechanism, and is characterized in that a middle sleeve (2) is arranged at the bottom of the end connector (1), and a tail sleeve (3) is arranged at the bottom of the middle sleeve (2);

the ejection mechanism comprises a punch (4), the punch (4) is slidably arranged in the end connector (1), the bottom end of the punch (4) is provided with a movable block (5), the bottom of the movable block (5) is fixedly connected with an insertion rod (14), the outer wall of the insertion rod (14) is sleeved with an eccentric spring (6), the lower part of the eccentric spring (6) is provided with an extrusion block (7), the top of the extrusion block (7) is provided with an insertion hole, the bottom of the extrusion block (7) is provided with a reset spring (8), the inner wall of the middle sleeve (2) is fixedly connected with a fixing ring (9), the top of the fixing ring (9) is provided with a first annular chamfer, and the bottom of the movable block (5) is provided with a second annular chamfer.

2. The automatic center punch as claimed in claim 1, wherein a first connecting ring (10) is fixedly connected to the bottom of the end connector (1), a first annular groove is formed in the inner wall of the middle sleeve (2), and the outer wall of the first connecting ring (10) is in threaded connection with the inner wall of the first annular groove.

3. The automatic center punch as claimed in claim 1, wherein a second connecting ring (11) is fixedly connected to the bottom of the middle sleeve (2), a second annular groove is formed in the inner wall of the tail sleeve (3), and the outer wall of the second connecting ring (11) is in threaded connection with the inner wall of the second annular groove.

4. The automatic center punch as claimed in claim 1, wherein the inner cavity of the end connector (1) is in an inverted T-shape, and the punch stem (4) is in an inverted T-shape.

5. The automatic center punch as claimed in claim 1, wherein a connecting band (12) is fixedly connected to the bottom of the tail sleeve (3), and a hanging ring (13) is fixedly connected to one end of the connecting band (12).