CN217528900U

CN217528900U - Point punching machine

Info

Publication number: CN217528900U
Application number: CN202123368049.7U
Authority: CN
Inventors: 余忠忠; 王洪昌; 叶小涌; 刘阳; 章俊杰; 章建海
Original assignee: Hangzhou Fuyang Utool Tools Co ltd; Hangzhou Fuyang District Technical School
Current assignee: Hangzhou Fuyang Utool Tools Co ltd; Hangzhou Fuyang District Technical School
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-04
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a point punching machine, including frame and drive arrangement, be equipped with a plurality of points drift in the frame, a plurality of point drift evenly distributed use the point to punch a hole on same virtual ring as the centre of a circle, equal elasticity setting can act on the needle of dashing on treating the same anchor ring surface of machined part in each point drift one end, and each point drift other end cooperation push rod, push rod are driven by drive arrangement, and under drive arrangement's effect, the stroke of push rod is transformed into the stroke of dashing the needle to realize that the point dashes. The punching pins which are uniformly distributed are punched at one time by one cylinder, so that the punching points are uniformly distributed, the production efficiency is improved, and the consistency of a batch of products can be ensured.

Description

Point punching machine

Technical Field

The utility model belongs to the technical field of mechanical assembly, concretely relates to point is towards machine.

Background

When other connecting pieces are installed at the top of the antenna, in order to limit the falling and the displacement of the connecting pieces, the connecting pieces are fully limited and need to be fixed by more than three points to be stable, and the points are uniformly distributed on the circumference. The traditional equipment can only finish one point by point punching once, and the defects of uneven point distribution, high-low dislocation and the like are easily caused by multiple point punching, so that the attractiveness of a product is influenced, and the production efficiency is low. The point punching equipment for punching a plurality of uniformly distributed points by one cylinder at a time is required to be provided, so that the point punching uniform distribution can be ensured, the production efficiency can be improved, and the consistency of a batch of products can also be ensured.

Disclosure of Invention

In order to compensate the not enough of prior art, the utility model provides a point punching machine, including frame and drive arrangement, be equipped with a plurality of points drift in the frame, a plurality of points drift evenly distributed use the point to punch a hole on same virtual ring as the centre of a circle, equal elasticity setting can act on the needle of dashing on treating the same anchor ring surface of machined part in each point drift one end, each point drift other end cooperation push rod, this push rod by the drive arrangement drive under drive arrangement's the effect, the stroke of this push rod is changed into the stroke of dashing the needle to realize the point and dash.

Further, the driving device comprises an air cylinder, the air cylinder is fixedly connected with a pushing disc, and a group of pushing rods corresponding to the point punch heads are arranged on the pushing disc.

Furthermore, a die sleeve for fixing the workpiece to be machined is arranged outside the point punching hole.

Furthermore, the extension part of the to-be-processed end of the to-be-processed workpiece in the rack is also elastically matched with a spring seat, the front end of the spring seat is provided with a bulge, the bulge and a switch seat arranged in the rack are on the same horizontal line, a certain distance is arranged between the bulge and the switch seat, and a proximity switch is arranged on the switch seat.

Furthermore, the number of the point punches is at least three, and the connecting piece is fully limited to be stable only when more than three points are needed.

Furthermore, the rack is provided with a guide piece which is used for eliminating outward thrust generated by pressing down the punching needle when the push rod moves relative to each point punching head.

Furthermore, a needle seat is arranged on the point punch head, a punching needle is arranged in the needle seat, the needle seat is spirally fixed with a sliding seat on the point punch head, a bearing is arranged at one end, far away from the needle seat, of the sliding seat, and the bearing is in rolling fit with the push rod so as to reduce the friction force between the push rod and the sliding seat during movement.

Furthermore, a bearing seat is arranged in the sliding seat, and a bearing rotating around a shaft is arranged in the bearing seat.

Furthermore, an inclined surface for the bearing to roll is arranged at one end of the push rod matched with the bearing.

Compared with the prior art, the utility model discloses there is following advantage:

1. the diameters of the antenna heads have different sizes, so that the die sleeve can be taken out by pulling out the punch pin, and different die sleeves can be replaced;

2. when the punching needle is worn and needs to be sharpened, the nut D is unscrewed, and the needle seat is screwed out;

3. the nut D is unscrewed, and the needle seat and the sliding seat are rotated to realize the adjustment of the depth of the punching point;

4. the bearing seat and the bearing arranged on the sliding seat change sliding friction into rolling friction, so that the friction force is reduced, and the service life is prolonged;

5. the guide piece eliminates the outward thrust generated by pressing the punching needle when the push rod moves;

6. one air cylinder pushes a plurality of punching needles which are uniformly distributed at one time to punch points on the same product, so that the punching points are uniformly distributed, the production efficiency is improved, and the consistency of a batch of products can be ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of A of FIG. 1 according to the present invention;

fig. 3 is a cross-sectional view of B in fig. 1 according to the present invention.

In the figure: 1-bottom plate, 2-frame, 3-push disc, 4-point punching, 5-die sleeve, 6-cylinder, 7-support, 8-bearing seat, 81-shaft, 82-bearing, 9-needle seat, 10-punching needle, 11-sliding seat, 12-spring A, 13-push rod, 14-spring seat, 141-spring B, 142-bulge, 15-switch seat, 16-proximity switch, 17-guide piece, 18-screw A, 19-screw B, 20-screw C, 21-screw D, 22-nut A, 23-nut B, 24-nut C, 25-nut D, 26-workpiece to be machined.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The point punching machine shown in fig. 1 comprises a frame 2 and a driving device which are arranged on a bottom plate 1, wherein the driving device is connected with the frame 2 through a push disc 3 arranged on the frame 2; the rack 2 comprises three point punches, the three point punches are arranged on the same ring taking the point punching 4 position on the rack 2 as the circle center, and the angle between two adjacent point punches is 120 degrees; a die sleeve 5 for fixing a workpiece to be machined is arranged outside the spot punching hole; the driving device comprises a cylinder 6, the cylinder 6 and the push disc 3 are fixed through a nut A22, the push disc 3 is connected with a group of push rods 13 arranged on the point punch through screws C20, and one end, connected with the point punch, of each push rod 13 is provided with an inclined surface.

Specifically, the cylinder 6 is fixed on the bracket 7 through a screw B19, and the bracket 7 is fixedly connected with the bottom plate 1 through a screw a 18.

As shown in fig. 1-2, a needle seat 9 is arranged on the point punch, a punching needle 10 is arranged in the needle seat 9, the punching needles 10 in the three point punches are on a virtual circle with the point punching holes 4 as the center of the circle, the angle between adjacent punching needles 10 is 120 °, the top of the needle seat 9 is fixed with a sliding seat 11 through a nut D25, springs a12 are arranged on two sides of the sliding seat 11, bearing seats 8 are further fixed on two sides of the sliding seat 11 through a nut B23, a shaft 81 and a bearing 82 are arranged on the bearing seats 8, and an inclined plane of a push rod 13 is in rolling connection with the bearing 82, so that the friction force between the push rod 13 and the sliding seat 11 is reduced, and the service life of the point punch is prolonged.

It can be understood that: one end of the sliding seat 11, which is far away from the needle seat 9, is provided with a bearing 81, and the bearing 81 is in rolling fit with the push rod 13 so as to reduce the friction force between the push rod 13 and the sliding seat 11 during movement.

The frame 2 is provided with a guide part 17 corresponding to each punch, the guide part 17 is fixed by a screw D21, the outward thrust generated by pressing the punch pin 10 downwards when the push rod 13 moves is eliminated, and the angle of the punch pin 10 is more stable.

Continuing as can be known from fig. 1, a spring seat 14 is further disposed at an extending position of a to-be-processed end of the to-be-processed part 26 on the machine frame 2, the spring seat 14 is of a groove structure, springs B141 are disposed on two sides of the groove, a protrusion 142 is disposed in the groove, a switch seat 15 is disposed at a certain distance from the front end of the spring seat 14, a proximity switch 16 is fixed on the switch seat 15 through a nut C24, and when the protrusion 142 in the spring seat 14 is close to the proximity switch 16, the cylinder 6 is triggered to act to realize point punching.

During use, the connecting piece sleeve is arranged at the top of a workpiece 26 to be machined, the inserting point is punched for 4, the right end of a spring seat 14 made of metal is impacted by the connecting piece sleeve arranged at the front end of the workpiece 26 to enable the spring seat 14 to move leftwards, when a bulge 142 at the left end of the spring seat 14 is close to the setting distance of a proximity switch 16, a cylinder 6 is triggered to act, the cylinder 6 pushes a push disc 3, a push rod 13 fixedly connected with the push disc 3 is utilized to push a bearing 82 to drive a sliding seat 11 to move downwards, then the sliding seat 11 pushes a needle seat 9 to move downwards, and the punch needle 10 is driven to realize point punching. It can be understood that: under the drive of the air cylinder 6, the stroke of the push rod 13 is converted into the stroke of the punch pin 10, so that the dot punching is realized.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A point punching machine comprises a machine frame (2) and a driving device and is characterized in that a plurality of point punching heads are arranged in the machine frame (2), the plurality of point punching heads are uniformly distributed on the same virtual circular ring with a point punching hole (4) as a circle center, punching needles (10) capable of acting on the same annular surface of a workpiece to be machined (26) are elastically arranged in one ends of the point punching heads, the other ends of the point punching heads are matched with push rods (13), the push rods (13) are driven by the driving device, and under the action of the driving device, the stroke of the push rods (13) is converted into the stroke of the punching needles (10), so that point punching is realized.

2. A point punching machine according to claim 1, characterized in that said driving means comprise a pneumatic cylinder (6), said pneumatic cylinder (6) being fixedly connected to a pusher disc (3), said pusher disc (3) being provided with a set of pushers (13) corresponding to said point punches.

3. A spot-punching machine according to claim 1, characterized in that a die sleeve (5) for fixing the piece (26) to be machined is arranged outside the spot-punching hole (4).

4. A punching machine according to claim 1, characterized in that a spring seat (14) is elastically fitted in the frame (2) at the extension of the end to be machined of the workpiece (26), the spring seat (14) is provided with a protrusion (142) at the front end, the protrusion (142) is on the same horizontal line with a switch seat (15) arranged in the frame (2) and is arranged at a certain distance from the switch seat, and a proximity switch (16) is arranged on the switch seat (15).

5. A point punch according to claim 1, wherein there are at least three point punches.

6. A spot-punching machine according to claim 5, characterized in that the frame (2) is provided with guides (17) relative to each of the spot punches for eliminating the outward thrust of the pressing punch pin when the push rod (13) is moved.

7. A point punch according to claim 1 or 6, characterized in that the point punch is provided with a needle seat (9), a punch needle (10) is arranged in the needle seat (9), the needle seat (9) is spirally fixed with a sliding seat (11) on the point punch, one end of the sliding seat (11) far away from the needle seat (9) is provided with a bearing (82), and the bearing (82) is in rolling fit with the push rod (13).

8. A punching machine according to claim 7, characterized in that a bearing block (8) is arranged in said sliding seat (11), and a bearing (82) rotating around a shaft (81) is arranged in said bearing block (8).

9. A punching machine according to claim 8, characterized in that the end of the push rod (13) cooperating with the bearing (82) is provided with an inclined surface for the bearing (82) to roll.