CN216758298U - Pressing type milling cutter - Google Patents

Abstract

The utility model relates to the technical field of processing equipment, in particular to a downward-pressing type milling cutter, which comprises a base, wherein a hinge seat is fixedly arranged on the base, a rotating shaft is fixedly arranged on the hinge seat, a main shaft support is also arranged in the hinge seat, and the rotating shaft penetrates through the middle part of the main shaft support so that the main shaft support can rotate relative to the hinge seat; the spindle bracket is fixedly provided with an installation plate, a driving motor is fixedly installed on the installation plate, the spindle bracket is provided with a transmission shaft which can rotate relative to the spindle bracket, two ends of the transmission shaft are respectively and fixedly connected with a left milling cutter and a right milling cutter, an output shaft of the driving motor is fixedly connected with a driving belt wheel, a driven belt wheel is fixedly sleeved on the outer peripheral side of the transmission shaft, and the driving belt wheel is in transmission connection with the driven belt wheel through a synchronous belt; a clamp body is arranged below the transmission shaft, and the clamp body is provided with a pressing device for pressing and holding a workpiece; a handle is also fixedly connected to the side of the main shaft bracket. The mirror image workpiece can be synchronously processed, the processing consistency and synchronism are ensured, and the product quality is improved.

Description

Pressing type milling cutter

Technical Field

The utility model relates to a downward pressing type milling cutter which is suitable for the technical field of processing equipment.

Background

In the field of workpiece structures, in order to facilitate production and improve the structural strength of workpieces, most castings adopt mirror image structures. Referring to the workpiece of fig. 1, which is a workpiece 1 with a mirror image structure, since the workpiece 1 is prepared by casting, the prepared workpiece 1 often needs to be further processed for practical use, for example, the workpiece 1 is provided with two mounting lugs 11 that are mirror images of each other, in order to be able to overlap other components such as a transmission shaft between the two mounting lugs 11, a smooth notch needs to be processed for each mounting lug 11, that is, a left notch 12 is processed on the left mounting lug 11, and a right notch 13 is processed on the right mounting lug 11. In the face of such a workpiece 1, the conventional machining method is to place the workpiece 1 on a conventional milling machine, and then machine the workpiece twice, wherein the left mounting lug 11 is machined for the first time to machine the left notch 12, and the right mounting lug 11 is machined for the second time to machine the right notch 13. Two problems exist with this conventional machining approach: firstly, because the two processes are divided into two processes which are independent of each other, the problem that the consistency cannot be ensured in the processes exists, and the problem that the specifications of two notches are different often occurs; secondly, two machining operations are required, and thus, two cutting operations are required, which causes problems of long machining time and low machining efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design a downward pressing type milling cutter which can solve the problem of low machining efficiency.

The utility model provides a downward-pressing type milling cutter which comprises a base, wherein a hinge seat is vertically and fixedly installed at the front end of the top surface of the base, a transversely-arranged rotating shaft is fixedly installed on the hinge seat, a main shaft support is further arranged in the hinge seat, and the rotating shaft penetrates through the middle of the main shaft support so that the main shaft support can rotate relative to the hinge seat; the front end of the top surface of the main shaft bracket is fixedly provided with a transversely-arranged mounting plate, the mounting plate is fixedly provided with a transversely-arranged driving motor, the rear end of the main shaft bracket is provided with a transmission shaft which can rotate relative to the main shaft bracket, two ends of the transmission shaft are respectively and fixedly connected with a left milling cutter and a right milling cutter, an output shaft of the driving motor is fixedly connected with a driving belt wheel, the peripheral side of the transmission shaft is fixedly sleeved with a driven belt wheel, and the driving belt wheel is in transmission connection with the driven belt wheel through a synchronous belt; a clamp body which is used for supporting the workpiece and is fixedly arranged on the base is arranged below the transmission shaft, and the clamp body is provided with a pressing device used for pressing and holding the workpiece; a handle is also fixedly connected to the side of the main shaft bracket.

Wherein, driving motor fixed mounting is on the right side of mounting panel top surface, and the left side of mounting panel top surface still fixed mounting has the balancing weight.

Wherein, articulated seat includes the backup pad of arranging in pairs at the interval on the transverse direction, and the equal vertical top surface of fixing at the base of each backup pad, each backup pad all offer the mounting hole that supplies the pivot to pass, and the cooperation relation of mounting hole and pivot is interference fit.

The spindle support comprises connecting plates which are arranged in pairs at intervals in the transverse direction, hinge holes for the rotating shafts to penetrate through are formed in the middle of each connecting plate, and the hinge holes are in transition fit or clearance fit with the rotating shafts.

Wherein, still be equipped with a plurality of connecting rods between two connecting plates, the one end and one of them connecting plate rigid coupling of connecting rod, the other end and another connecting plate rigid coupling of connecting rod.

Wherein, the anchor clamps body is equipped with spacing hole including the U type support of invering, the middle part of U type support, and the top surface of U type support is equipped with mated stopper, and mated stopper symmetry sets up the left and right sides in spacing hole.

Wherein, each stopper is L type structure, and the corner between the vertical section and the horizontal section of stopper is formed with the groove of keeping away of arranging along vertical direction.

The pressing and holding device comprises paired corner cylinders, the two corner cylinders are respectively positioned on the left side and the right side of the limiting hole, the cylinder body of each corner cylinder is fixedly mounted on the U-shaped support, and the rotary transmission shaft of each corner cylinder is fixedly connected with at least two pressing and holding blocks.

The two adjacent pressing blocks are arranged on the same corner cylinder at intervals in the vertical direction, and the projections of the two adjacent pressing blocks on the horizontal plane are perpendicular to each other.

Wherein, the handle is L-shaped structure.

The working process of the press-down milling cutter comprises the following steps: firstly, placing a workpiece into a clamp body, then starting a pressing device, and pressing the workpiece on the clamp body by the pressing device; secondly, starting a driving motor, wherein an output shaft of the driving motor drives a driving belt wheel to rotate, the driving belt wheel drives a driven belt wheel to rotate through a synchronous belt, and the driven belt wheel is relatively fixed with a transmission shaft, so that the driving motor indirectly drives the transmission shaft to rotate, and the left milling cutter and the right milling cutter at the two ends of the transmission shaft are driven to synchronously rotate; and thirdly, applying external force to press down the handle, wherein the handle can drive the spindle support to rotate around a rotating shaft in the hinging seat, and the transmission shaft is arranged at the rear end between the spindles, so that the left milling cutter and the right milling cutter can be driven by pressing down the handle to move towards the workpiece in the fixture body, and the motion tracks of the left milling cutter and the right milling cutter are circular motion, so that the left milling cutter and the right milling cutter can synchronously cut the left notch and the right notch of the workpiece pressed and held in the fixture body.

The press-down milling cutter has the following beneficial effects:

(1) the driving motor drives the left milling cutter and the right milling cutter to synchronously rotate under the assistance of the driving belt wheel, the synchronous belt and the driven belt wheel, and drives the left milling cutter and the right milling cutter to do circular motion by the handle, so that the left milling cutter and the right milling cutter can simultaneously contact with a workpiece and can synchronously process mirror image workpieces, the consistency and the synchronism of processing are ensured, and the quality of products is improved.

(2) The left milling cutter and the right milling cutter are fixedly connected to the same transmission shaft, and only one driving motor is needed to drive the left milling cutter and the right milling cutter, so that parts are saved, the production cost is reduced, the structure of the milling cutter is simplified, and the overall weight of the milling cutter is reduced.

(3) The milling cutter can finish the cutting of mirror image workpieces at one time, shortens the processing time, improves the production efficiency, reduces the production cost, and has good cutting effect and high processing reliability.

(4) The milling cutter disclosed by the utility model is simple and compact in structure, light in weight, convenient to carry and simple to maintain.

Drawings

Fig. 1 is a schematic structural diagram of a workpiece in the prior art.

Fig. 2 is a schematic structural view of the down-pressing milling cutter in the embodiment.

Fig. 3 is a schematic structural view of another view of the down-pressing milling cutter according to the present embodiment.

Fig. 4 is a schematic structural diagram of the driving device in this embodiment.

Fig. 5 is a schematic structural diagram of the clamp body and the pressing device in this embodiment.

Fig. 6 is a schematic structural diagram of a limiting block in this embodiment.

Reference numerals: workpiece 1, mounting lug 11, left notch 12, right notch 13, base 2, support plate 31, rotating shaft 32, connecting plate 41, connecting rod 42, handle 5, mounting plate 6, U-shaped support 71, corner cylinder 72, pressing block 73, limiting block 74, limiting hole 75, avoiding groove 76, balancing weight 8, driving motor 91, driving pulley 92, driven pulley 93, synchronous belt 94, left milling cutter 95, right milling cutter 96 and transmission shaft 97.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other without conflict.

Referring to fig. 1 to 3, a hinge seat is vertically and fixedly installed at the front end of the top surface of the base 2 (the front end is the upper left corner of fig. 2), and a rotating shaft 32 is transversely installed on the hinge seat. Specifically, articulated seat includes backup pad 31 that arranges at interval in the transverse direction in pairs, and the equal vertical top surface of fixing at base 2 in each backup pad 31, and the mounting hole that supplies pivot 32 to pass is all seted up to each backup pad 31, and the fit relation of mounting hole and pivot 32 is interference fit to pivot 32 is fixed for two backup pads 31 (articulated seat). A spindle support is further arranged in the hinge seat, and a rotating shaft 32 penetrates through the middle of the spindle support, so that the spindle support can rotate relative to the hinge seat. In this embodiment, the spindle bracket includes a pair of connection plates 41 arranged at intervals in the transverse direction, a hinge hole for the rotation shaft 32 to pass through is formed in the middle of each connection plate 41, and the fit relationship between the hinge hole and the rotation shaft 32 is transition fit or clearance fit, so that the rotation shaft 32 can rotate relative to the two connection plates 41 (spindle bracket).

As a modification, a handle 5 is fixedly connected to a side of the spindle bracket (one of the connecting plates 41), and the handle 5 has an L-shaped structure in order to facilitate manufacturing of the handle 5 and prevent the handle 5 from touching parts other than the spindle bracket.

The push-down milling cutter of the present embodiment can apply a downward pressure to the handle 5, and since the handle 5 is fixedly connected to the spindle bracket, the spindle bracket is driven to make a circular motion around the rotating shaft 32 in the hinge seat in the process of pushing down the handle 5, that is, the connecting plate 41 rotates around the rotating shaft 32. In addition, in order to enhance the connection rigidity and the structural strength between the two connection plates 41, a plurality of connection rods 42 are further arranged between the two connection plates 41, one end of each connection rod 42 is fixedly connected with one of the connection plates 41, and the other end of each connection rod 42 is fixedly connected with the other connection plate 41.

Referring to fig. 4, a transversely disposed mounting plate 6 is fixedly mounted at the front end of the top surface of the spindle bracket, a transversely disposed driving motor 91 is fixedly mounted on the mounting plate 6, and a transmission shaft 97 capable of rotating relative to the spindle bracket is disposed at the rear end of the spindle bracket. In this embodiment, it should be noted that the rear ends of the two symmetrical connecting plates 41 of the spindle bracket are also provided with another hinge hole, a bearing or a shaft sleeve can be fixedly installed in the hinge hole, and the transmission shaft 97 is sequentially inserted into the bearing in the hinge hole of each connecting plate 41, so that the transmission shaft 97 can rotate relative to the spindle bracket.

As an improvement, the left milling cutter 95 and the right milling cutter 96 are respectively fixed to two ends of the transmission shaft 97, so that when the transmission shaft 97 rotates, the left milling cutter 95 and the right milling cutter 96 can be synchronously driven to work. A driving pulley 92 is fixedly connected to an output shaft of the driving motor 91, a driven pulley 93 is fixedly sleeved on the outer peripheral side of the transmission shaft 97, and the driving pulley 92 is in transmission connection with the driven pulley 93 through a synchronous belt 94. Of course, the driving pulley 92, the driven pulley 93 and the synchronous belt 94 can be replaced by a driving structure of a driving sprocket, a driven sprocket and a chain, and the arrangement can be selected according to actual requirements.

In this embodiment, in order to facilitate fixing of the workpiece 1, referring to fig. 5 and 6, a fixture body for supporting the workpiece 1 and fixedly mounted on the base 2 is provided below the transmission shaft 97, and the fixture body is provided with a pressing device for pressing the workpiece 1. Specifically, the anchor clamps body is equipped with spacing hole 75 including the U type support 71 of invering, the middle part of U type support 71, and the top surface of U type support 71 is equipped with mated stopper 74, and mated stopper 74 symmetry sets up the left and right sides in spacing hole 75.

Please see fig. 6, each of the limiting blocks 74 is an L-shaped structure, a avoiding groove 76 arranged along the vertical direction is formed at a corner between the longitudinal section and the transverse section of the limiting block 74, and the avoiding groove 76 can prevent the right-angled structure of the workpiece 1 from directly touching the limiting block 74 to cause damage, thereby achieving the effect of avoiding protection.

In the present embodiment, please see fig. 5, the pressing device includes a pair of corner cylinders 72, it should be noted that the corner cylinders 72 are conventional corner cylinders 72 on the market, and the rotating shafts 97 of the corner cylinders 72 have a pressing function. The two corner cylinders 72 are respectively positioned at the left side and the right side of the limiting hole 75, the cylinder body of each corner cylinder 72 is fixedly installed on the U-shaped support 71, and the rotary transmission shaft 97 of each corner cylinder 72 is fixedly connected with at least two pressing blocks 73. Specifically, the two adjacent pressing blocks 73 are located on the same corner cylinder 72 and are arranged at intervals in the vertical direction, and the projections of the two adjacent pressing blocks 73 on the horizontal plane are perpendicular to each other, that is, the two adjacent pressing blocks 73 are 90 degrees to each other. Through setting up two mutually perpendicular's on the horizontal plane pressure and holding piece 73, and two pressure are held piece 73 and are arranged at the vertical direction interval, through 90 degrees or the 90 degrees of reversal of the corotation of the rotatory transmission shaft 97 of control corner cylinder 72, thereby select the not higher top of placing work piece 1 in of pressure and holding piece 73, after selecting the right pressure and holding piece 73, corner cylinder 72 orders about the rotatory transmission shaft 97 again and pushes down, can press and hold work piece 1, two pressure that position is different on the direction of height hold piece 73, can be applicable to the pressure of two kinds of work pieces 1 and hold, avoid frequently changing corner cylinder 72, can be applicable to the pressure of two kinds of at least work pieces 1 and hold, reduce the number of times of changing corner cylinder 72, thereby promote milling cutter's suitability and flexibility.

In practical application, in order to ensure that the driving pulley 92 and the driven pulley 93 are located on the same vertical plane, the driving motor 91 must be fixedly installed on the right side of the top surface of the mounting plate 6, and therefore, the weight of the driving motor 91 is completely applied to the right side of the mounting plate 6, the driving motor 91 is relatively heavy, the whole milling cutter tends to turn on one's side, the processing and production of products are affected, and in order to solve the problem, in the embodiment, the balancing weight 8 is further fixedly installed on the left side of the top surface of the mounting plate 6. The balancing weight 8 can enable the mounting plate 6 to act on the main shaft support more stably and evenly, the problem that the milling cutter is prone to side turning is solved, the tendency of lateral deviation of the milling cutter is eliminated, and therefore production quality is further improved.

The working process of the press-down milling cutter of the embodiment is as follows: firstly, placing a workpiece 1 into a clamp body, then starting a pressing device, and pressing the workpiece 1 on the clamp body by the pressing device; secondly, starting the driving motor 91, driving the driving pulley 92 to rotate by an output shaft of the driving motor 91, driving the driven pulley 93 to rotate by the driving pulley 92 through the synchronous belt 94, and indirectly driving the transmission shaft 97 to rotate by the driving motor 91 because the driven pulley 93 is relatively fixed with the transmission shaft 97, thereby realizing synchronous rotation of the left milling cutter 95 and the right milling cutter 96 at the two ends of the driving transmission shaft 97; and thirdly, applying external force to press down the handle 5, wherein the handle 5 can drive the spindle support to rotate around the rotating shaft 32 in the hinge seat, and the transmission shaft 97 is arranged at the rear end between the spindles, so that the handle 5 can drive the left milling cutter 95 and the right milling cutter 96 to move towards the workpiece 1 in the fixture body, the movement tracks of the left milling cutter 95 and the right milling cutter 96 are circular motion, and the left milling cutter 95 and the right milling cutter 96 synchronously cut the left notch 12 and the right notch 13 of the workpiece 1 pressed and held in the fixture body.

The push-down milling cutter of the embodiment has the following characteristics that firstly, the driving motor 91 drives the left milling cutter 95 and the right milling cutter 96 to synchronously rotate under the assistance of the driving pulley 92, the synchronous belt 94 and the driven pulley 93, and the left milling cutter 95 and the right milling cutter 96 are driven to do circular motion by the handle 5, so that the left milling cutter 95 and the right milling cutter 96 can simultaneously contact with the workpiece 1 and can synchronously process the mirror image workpiece 1, the processing consistency and synchronism are ensured, and the product quality is improved. Secondly, through with left milling cutter 95 and right milling cutter 96 rigid coupling on same transmission shaft 97, only need a driving motor 91 can accomplish the drive of left milling cutter 95 and right milling cutter 96, saved the part, reduced manufacturing cost, simplified the structure of milling cutter machine, reduced the whole weight of milling cutter machine. Thirdly, the milling cutter can finish the cutting of the mirror image workpiece 1 at one time, the processing time is shortened, the production efficiency is improved, the production cost is reduced, the cutting effect is good, and the processing reliability is high. Fourthly, the milling cutter has simple and compact structure, light weight, convenient carrying and simple maintenance.

Although the embodiments of the present invention have been described above, the embodiments are only used for understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. The downward-pressing type milling cutter is characterized by comprising a base, wherein a hinge seat is vertically and fixedly installed at the front end of the top surface of the base, a transversely-arranged rotating shaft is fixedly installed on the hinge seat, a spindle support is further arranged in the hinge seat, and the rotating shaft penetrates through the middle of the spindle support so that the spindle support can rotate relative to the hinge seat;

the front end of the top surface of the spindle support is fixedly provided with a transversely-arranged mounting plate, the mounting plate is fixedly provided with a transversely-arranged driving motor, the rear end of the spindle support is provided with a transmission shaft which can rotate relative to the spindle support, two ends of the transmission shaft are respectively and fixedly connected with a left milling cutter and a right milling cutter, an output shaft of the driving motor is fixedly connected with a driving pulley, the peripheral side of the transmission shaft is fixedly sleeved with a driven pulley, and the driving pulley is in transmission connection with the driven pulley through a synchronous belt;

a clamp body which is used for supporting the workpiece and is fixedly arranged on the base is arranged below the transmission shaft, and the clamp body is provided with a pressing device used for pressing and holding the workpiece;

and a handle is fixedly connected to the side of the main shaft bracket.

2. The down-pressing milling cutter machine according to claim 1, wherein said drive motor is fixedly mounted on a right side of said mounting plate top surface, and a weight block is further fixedly mounted on a left side of said mounting plate top surface.

3. The milling cutter according to claim 1, wherein the hinge base includes a pair of support plates spaced apart in a transverse direction, each support plate is vertically fixed to the top surface of the base, each support plate defines a mounting hole for the rotation shaft to pass through, and the mounting hole and the rotation shaft are in an interference fit.

4. The milling cutter according to claim 1, wherein the spindle bracket includes a pair of connection plates arranged at intervals in the transverse direction, a hinge hole for the rotation shaft to pass through is formed in a middle portion of each connection plate, and the engagement relationship between the hinge hole and the rotation shaft is transition engagement or clearance engagement.

5. The down-drive milling cutter according to claim 4, wherein a plurality of connecting rods are provided between two of said connecting plates, one end of each connecting rod being fixedly connected to one of the connecting plates and the other end of each connecting rod being fixedly connected to the other connecting plate.

6. The milling cutter according to claim 1, wherein the clamp body comprises an inverted U-shaped bracket, a limiting hole is formed in the middle of the U-shaped bracket, and the top surface of the U-shaped bracket is provided with a pair of limiting blocks, and the pair of limiting blocks are symmetrically arranged on the left side and the right side of the limiting hole.

7. The milling cutter according to claim 6, wherein each of the stoppers is of an L-shaped structure, and a vertical clearance groove is formed at a corner between the longitudinal section and the transverse section of each stopper.

8. The milling cutter according to claim 6, wherein the pressing device comprises a pair of corner cylinders, the two corner cylinders are respectively located at the left and right sides of the limiting hole, the cylinder body of each corner cylinder is fixedly mounted on the U-shaped bracket, and the rotating shaft of each corner cylinder is fixedly connected with at least two pressing blocks.

9. The milling cutter machine according to claim 8, wherein two adjacent pressing blocks on the same corner cylinder are spaced apart from each other in the vertical direction, and the projections of the two adjacent pressing blocks on the horizontal plane are perpendicular to each other.

10. The down-milling cutter machine according to claim 1, wherein the handle is an L-shaped structure.

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