CN219900121U

CN219900121U - Cold heading machine is with logical device that goes out

Info

Publication number: CN219900121U
Application number: CN202321286033.8U
Authority: CN
Inventors: 付胜刚; 牟联满
Original assignee: Guangdong Taijishan Technology Co ltd
Current assignee: Guangdong Taijishan Technology Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-27
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to the technical field of cold heading machines, and particularly discloses a discharge device for a cold heading machine. This let out device replaces a plurality of narrower swing arms that let out that set up side by side through setting up a wider swing arm that lets out to set up a plurality of mounting panels that let out on this wider swing arm that let out, and every all install a ejector pin bolt correspondingly on the mounting panel that lets out, make a wider swing arm that lets out can be with the shorter part of the similar nut of each cold heading station simultaneously jack-in to the clamping jaw in, on the basis of guaranteeing cold heading machine normal production, make the processing cost who lets out the rocking arm reduce.

Description

Cold heading machine is with logical device that goes out

Technical Field

The utility model relates to the field of cold heading machines, in particular to a discharge device for a cold heading machine.

Background

A cold header is a press working machine in machine manufacturing for forming a raw material into a desired shape without any change.

The cold header carries out cold heading on the bar in the main die box after cutting the bar into a proper length, and the bar subjected to cold heading needs to be transferred into the clamping jaw from the main die box through the passing-out device. The application document of the application number CN115958147A discloses a cold header, wherein the passing-out structure in the cold header comprises a plurality of passing-out swing arms which are arranged in parallel, the passing-out swing arms are mutually independent, and each passing-out swing arm is provided with a push rod bolt. For some longer cold heading parts such as nuts, because the lengths of the cold heading are different, different outgoing swing arms are required to be set to different angles, so that different lengths after the cold heading can be synchronously jacked into the clamping jaw. However, the split setting of the pass-out swing arms is costly and for some shorter parts it is not necessary to set different pass-out swing arms to different angles.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model discloses a passing-out device for a cold header, which is used for solving the problem of overhigh setting cost of a split type passing-out swing arm.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

cold header is with logical device that goes out includes:

a bed body;

a vent structure comprising:

the middle part of the through rocker arm is rotationally connected to the lathe bed;

the through mounting plates are arranged at the top of the through rocker arm at intervals;

the ejector rod bolts are correspondingly arranged on the through mounting plate one by one; and

the ejector rod is connected to the lathe bed in a sliding manner and is used for being driven by the ejector rod bolt to pass out;

and the driving structure is rotationally connected with the lower part of the through rocker arm and is used for driving the through rocker arm to rotate.

Preferably, the through structure further comprises an ejector tube bottom plate and an ejector tube, the ejector tube bottom plate is arranged on the lathe bed, a screw hole is formed in the ejector tube bottom plate, threads are formed in the outer wall of the ejector tube, the ejector tube is in threaded connection with the screw hole, and the ejector rod is in sliding connection with the ejector tube.

Preferably, an elastic piece is arranged in the ejector tube and used for driving the ejector rod to move towards the ejector rod bolt.

Preferably, the driving structure includes:

the through crankshaft is rotationally connected to the lathe bed and is used for being in transmission connection with the main crankshaft;

one end of the through connecting rod is eccentrically and rotatably connected to the through crankshaft, and the other end of the through connecting rod is rotatably connected with the lower part of the through rocker arm.

Preferably, the ejector pin bolt includes a shank portion and a head portion for striking the ejector pin.

Preferably, a copper sleeve is arranged on the through crankshaft, and the through connecting rod is rotatably connected to the copper sleeve.

Preferably, the leading-out rocker arm is provided with a first lightening hole.

Preferably, the through connecting rod is provided with a second lightening hole.

Preferably, the second lightening holes are arranged on two sides of the through connecting rod, and the section of the through connecting rod is I-shaped.

Compared with the prior art, the utility model has the beneficial effects that:

according to the passing-out device for the cold header, provided by the utility model, the plurality of passing-out rocker arms which are arranged in parallel are integrated into one passing-out rocker arm, so that the processing of the passing-out rocker arms is simpler, and the processing cost of the passing-out rocker arms is reduced on the basis of ensuring normal production of the cold header.

Drawings

Fig. 1 is a schematic structural diagram of a first view angle of a cold header tapping device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second view angle of a cold header vent device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating an assembly of a through structure and a driving structure according to an embodiment of the present utility model;

fig. 4 is an enlarged view of the a portion structure in fig. 3;

fig. 5 is a cross-sectional view of a through-connection rod according to an embodiment of the present utility model.

Description of main reference numerals: 10-lathe bed, 20-pass-out structure, 21-pass-out rocker arm, 211-first lightening hole, 212-pass-out rocker arm fulcrum, 22-pass-out mounting plate, 23-ejector bolt, 231-rod part, 232-head, 24-ejector pin, 25-ejector pin base plate, 26-ejector pin pipe, 30-driving structure, 31-pass-out crankshaft, 32-pass-out connecting rod, 321-second lightening hole and 40-main die box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the utility model will be further described with reference to the examples and the accompanying drawings.

Examples

The cold header is a stamping machine commonly used in machining and is used for cold-heading bar stock cut to a proper length into parts such as bolts, nuts and the like.

Different parts are processed by different processes, and are required to be formed into a required shape through different cold heading steps. If the bolt needs three to four times of cold heading in the cold heading process, on different cold heading stations, the length of the bolt is different, in order to enable the bolt with different length to be jacked into the clamping jaw simultaneously after cold heading and be transferred to the next station by the clamping jaw, the position of the through-out swing arm needs to be adjusted, and therefore bars with different lengths at different stations are jacked into the clamping jaw simultaneously by the through-out swing arm. However, in some shorter parts, such as nuts, the length of the nut is shorter, so that the whole cold heading process does not change greatly, i.e. the position of the swing arm of the shorter part such as the nut does not need to be changed in the machining process.

The utility model discloses a cold header as in the application document of application number CN115958147A, and the structure of letting out in this cold header includes a plurality of swing arms that let out that set up side by side, and the angle that each of swing arms that let out that set up side by side can be adjusted alone. When the cold header in the application document is used for producing nuts, each passing-out swing arm needs to be adjusted to the same angle.

In the cold header for producing shorter parts such as nuts, a plurality of through-out swing arms are not required, and if a plurality of through-out swing arms are arranged in parallel as in the above application documents, the whole production cost of the cold header is higher.

Therefore, the utility model discloses a passing-out device for a cold header, which replaces a plurality of narrow passing-out swing arms arranged in parallel by arranging a wider passing-out swing arm, and a plurality of ejector rod bolts 23 are arranged on the wider passing-out swing arm, so that a shorter part similar to a nut of each cold header station can be simultaneously ejected into a clamping jaw by the wider passing-out swing arm, and the processing cost of the passing-out swing arm 21 is reduced on the basis of ensuring normal production of the cold header.

Specifically, referring to fig. 1-2, the tapping device comprises a lathe bed 10, wherein a driving structure 30 and a tapping structure 20 are installed in the lathe bed 10, the driving structure 30 is used for driving the tapping structure 20 to work, and the tapping structure 20 is used for jacking a workpiece subjected to cold heading in a main die box 40 into a clamping jaw. Referring to fig. 3-4, the passing-out structure 20 includes a passing-out rocker arm 21, a middle portion of the passing-out rocker arm 21 is rotatably connected to the machine body 10 through a passing-out rocker arm support shaft 212, a plurality of passing-out mounting plates 22 are mounted on top of the passing-out rocker arm 21 in parallel, the passing-out mounting plates 22 are disposed at intervals, and a push rod bolt 23 is mounted on each of the passing-out mounting plates 22. One side of the ejector rod bolt 23 is provided with an ejector rod 24, the ejector rod 24 is slidably connected to the lathe bed 10, and the ejector rod 24 is driven by the ejector rod bolt 23 to slide. One side of the ejector rod 24 is provided with a main die box 40, and the ejector rod 24 is opposite to a processing hole position in the main die box 40.

When the cold heading of the workpiece is completed, the driving structure 30 drives the through rocker arm 21 (as shown in fig. 4) to rotate clockwise, at this time, the through rocker arm 21 drives the through mounting plate 22 to rotate, the ejector rod bolt 23 mounted on the through mounting plate 22 follows to rotate, at this time, the ejector rod bolt 23 pushes the ejector rod 24 to the right, so that the ejector rod 24 is pushed into the machining hole site of the main die box 40, and the workpiece in the machining hole site is pushed into the clamping jaw.

Specifically, referring to fig. 4, a jack bolt 23 is threadably attached to the mounting plate of the exiting rocker 21, the jack bolt 23 including a stem 231 and a head 232, wherein the head 232 faces the jack 24 and the head 232 is adapted to strike the jack 24. The head 232 has a larger cross-sectional area so that the jack bolt 23 can strike the jack 24 more accurately.

In order to facilitate the installation of the ejector rod 24, the tapping structure 20 further comprises an ejector tube bottom plate 25 and an ejector tube 26, wherein the ejector tube bottom plate 25 is installed on the lathe bed 10 through screws. The lathe bed 10 is provided with a through hole, the ejector tube bottom plate 25 is provided with a screw hole which is coaxial with the through hole, and the ejector tube 26 is in threaded connection with the screw hole. The ejector pin 24 is slidably coupled to the inner wall of the ejector pin tube 26.

Wherein the inner diameter of the ejector tube 26 is variable, thereby facilitating the replacement of the ejector rods 24 of different thicknesses to accommodate workpieces of different sizes. Or if the ejector rod 24 is damaged, the ejector rod 24 is convenient to replace.

Further, the positional relationship between the ejector tube 26 and the ejector tube base plate 25 is adjustable. When processing shorter workpieces with different lengths, the distances required to be ejected for the different workpieces are different due to the different lengths after cold heading, namely, the distance required to move the ejector rod 24 to the right is required to be adjusted, so that the passing-out structure 20 can be adapted to produce different workpieces.

In one embodiment of the present utility model, it is necessary to rotate the ejector pin 26 so that the ejector pin 24 moves farther to the right when producing a shorter length workpiece.

In one embodiment of the present utility model, in producing a longer length workpiece, it is necessary to rotate the ejector pin 26 so that the ejector pin 24 moves a smaller distance to the right.

Of course, in one embodiment of the present utility model, in order to enable the ejector rod 24 to automatically return to the initial position after the rightward movement, an elastic member is further provided in the ejector tube 26. The elastic member is used to drive the jack 24 to move toward the jack bolt 23.

Referring to fig. 4, the elastic member provided in the ejector tube 26 may be a compression spring or a tension spring. When the elastic member is provided as a compression spring, the compression spring is compressed when the jack 24 moves rightward, and thus the jack 24 can move leftward after the escape rocker 21 is reset counterclockwise. When the elastic member is a tension spring, the tension spring is stretched when the jack 24 moves rightward, and thus the jack 24 can move leftward after the passing-out rocker 21 is reset counterclockwise.

The elastic element is not shown in the drawings, because of its relatively common arrangement in the tube.

Specifically, referring to fig. 3, the drive structure 30 includes a lead-out crankshaft 31, the lead-out crankshaft 31 being rotatably connected to the bed 10, and the lead-out crankshaft 31 being in driving communication with the main crankshaft. The main crankshaft is in driving connection with an external motor, and when the main crankshaft is rotated by the external motor, the exiting crankshaft 31 follows the rotation. The discharge crankshaft 31 is provided with an eccentric portion, one end of the discharge link 32 is rotatably connected to the eccentric portion, and the other end of the discharge link 32 is rotatably connected to the bottom of the discharge rocker arm 21. When one end of the lead-out link 32 moves following the rotation of the lead-out crankshaft 31, the other end of the lead-out link 32 reciprocates left and right.

In the process of the reciprocating motion of the other end of the through connecting rod 32, the through connecting rod 32 drives the through rocker arm 21 to swing clockwise and anticlockwise, and then the through rocker arm 21 drives the ejector rod bolt 23 to eject a workpiece into the clamping jaw.

Preferably, in an embodiment of the present utility model, in order to smoothly rotate between the exiting crankshaft 31 and the exiting connecting rod 32, a copper bush is provided at an eccentric portion of the exiting crankshaft 31, and the copper bush is provided so that the exiting connecting rod 32 smoothly rotates.

Further, in order to enable the swing arm to swing more easily, the swing arm is provided with a first lightening hole 211. The first lightening holes 211 are arranged on the through swing arms, and the first lightening holes 211 are arranged on the strength of the structure of the through swing arms, so that the dead weight of the through swing arms is smaller, and the through swing arms are driven by the through crankshaft 31 more easily.

Further, as shown in fig. 3 and 5, the second lightening holes 321 are formed in the outgoing link 32 in the same manner, the second lightening holes 321 are formed at intervals along the extending direction of the outgoing link 32, the second lightening holes 321 are formed in both sides of the outgoing link 32, and the outgoing link 32 provided with the second lightening holes 321 has an i-shaped cross section. Of course, the arrangement of the second lightening hole 321 ensures the strength of the through-out swing arm structure, so that the dead weight of the through-out connecting rod 32 is smaller, and further, smaller friction is formed between the through-out connecting rod 32 and the copper sleeve.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims

1. Cold heading machine is with letting-out device, its characterized in that includes:

a bed body;

a vent structure comprising:

2. The cold header pass-out device according to claim 1, wherein the pass-out structure further comprises a top tube bottom plate and a top tube, the top tube bottom plate is mounted on the bed body, the top tube is in threaded connection with the top tube bottom plate, and the ejector rod is in sliding connection with the top tube.

3. The cold header tapping device according to claim 2, wherein an elastic member is provided in the ejector tube, and the elastic member is configured to drive the ejector rod to move toward the ejector rod bolt.

4. The cold header passing-out device according to claim 1, wherein the driving structure includes:

5. The cold header pass-out device according to claim 1, wherein the ejector pin bolt includes a shank portion and a head portion for striking the ejector pin.

6. The device for passing out a cold header according to claim 4, wherein a copper bush is mounted on the passing-out crankshaft, and the passing-out connecting rod is rotatably connected to the copper bush.

7. The passage-out device for a cold header according to claim 1, wherein the passage-out rocker arm is provided with a first lightening hole.

8. The cold header passing-out device according to claim 4, wherein the passing-out connecting rod is provided with a second lightening hole.

9. The device for passing out of a cold header according to claim 8, wherein the second lightening holes are formed at both sides of the passing-out connecting rod, and the cross section of the passing-out connecting rod is in an I shape.