CN204546042U - Broaching machine delivery sheet - Google Patents

Abstract

The utility model discloses a feeding plate of a broaching machine, which comprises a base, a transition piece, a first positioning rod, a second positioning rod, a slide plate, a clamping positioning mechanism and a chip removal block fixed on the base; The workpiece is clamped and positioned in the cavity of the slide plate, and the workpiece is positioned along the circumferential direction of the workpiece to a certain extent, and the rotation of the workpiece is restricted under the condition of allowing the workpiece to translate, so as to improve the consistency of the relative position of the workpiece on the workbench, and the processed products Good structural uniformity, high pass rate, no need to manually hold the workpiece, which is beneficial to realize the automation of fine drawing processing and improve production efficiency. The waterproof safety door can be closed during processing, which can improve safety, and the gap between the workpiece and the worktable can be automatically removed during the moving process The metal shavings between them reduce the friction on the surface of the workpiece and reduce the damage to the surface of the workpiece.

Description

Broaching machine feed plate

technical field

The utility model relates to a tooling, in particular to a feeding plate for a broaching machine.

Background technique

The tooth drawing process includes two processes of initial drawing and finishing drawing. The initial drawing refers to broaching the gear sleeve blank with no teeth in the inner hole, and the finishing drawing refers to correcting the gear sleeve with teeth in the inner hole to meet the product technical requirements. The feeding plate is a tool used to install the workpiece on the broaching machine table. When the traditional feeding plate is loaded into the workpiece, the workpiece can move freely in any direction for 0-3mm, that is, the circumferential direction and radial direction are not positioned, so The workpiece can move and rotate freely within a certain range. When the gear sleeve is fine-drawn, since the feeding plate has no positioning function for the gear sleeve, it is impossible to guarantee the consistency of the relative position of the workpiece on the workbench during each processing, resulting in processing The finished products have poor structural uniformity and a low pass rate. Usually, it is necessary to manually align and install the gear sleeves on the teeth of the broach. During the downward process of the broach, the workpiece still needs to be supported to prevent it from tilting until the broach goes down to the workbench. In the process of fine drawing, the waterproof safety door cannot be closed, so the traditional feeding plate cannot realize the automation of fine drawing, the production efficiency is low, and the risk factor is high; at the same time, the metal chips generated during processing are easily mixed between the feeding plate and the workbench, so again When the workpiece is pushed onto the workbench, it will generate strong friction with the bottom surface of the workpiece, and the iron filings will also cause indentations on the surface of the workpiece under the action of huge pressure during tooth pulling, causing damage to the surface of the workpiece.

Utility model content

In view of this, the purpose of this utility model is to provide a broaching machine feeding plate, which can radially position the workpiece, can be used for fine drawing processing, and can improve the consistency of the relative position of the workpiece on the workbench. Good structural uniformity, high pass rate, no need to manually hold the workpiece, which is beneficial to realize the automation of fine drawing processing and improve production efficiency. The waterproof safety door can be closed during processing, which can improve safety, and the gap between the workpiece and the worktable can be automatically removed during the moving process The metal shavings between them reduce the friction on the surface of the workpiece and reduce the damage to the surface of the workpiece.

The feeding plate of the broaching machine of the utility model includes a base, a transition piece, a first positioning rod, a second positioning rod, a slide plate, a clamping positioning mechanism and a chip removal block fixed on the base; A positioning rod is slidably connected to the transition piece with a single degree of freedom in the longitudinal direction, and the transition piece is slidably connected to the base through the second positioning rod along the lengthwise single degree of freedom of the second positioning rod, and the first positioning rod and the second positioning rod are perpendicular to each other; The slide plate is provided with a vertically penetrating cavity for accommodating workpieces; the clamping and positioning mechanism is installed on the slide plate for clamping and positioning the workpiece along the radial direction of the cavity; between the chip removal block and the base An air cavity is formed; the chip removal block is provided with an air port communicating with the air cavity to guide the wind in the air cavity to remove metal shavings on the workbench; the base is provided with an air channel connected to the air cavity;

Further, both the first positioning rod and the second positioning rod are fixed on the transition piece, and the first positioning rod and the slide plate and between the second positioning rod and the base are slidingly connected by linear bearings;

Further, it also includes an elastic positioning member for positioning the slide plate along the radial direction of the cavity in the slide plate;

Further, the elastic positioning member is a spring, and there are at least two springs arranged evenly around the circumferential direction of the cavity of the slide plate, and the springs are connected between the slide plate and the base;

Further, the tuyere is a horizontal strip hole; the cross-sectional area of the tuyere is smaller than the cross-sectional area of the air duct;

Further, the tuyere is arranged inclined downward; the air cavity is provided with a V-shaped groove corresponding to the tuyere; the angle between the two side walls of the V-shaped groove and the tuyere is the same;

Further, the length of the tuyere is greater than the maximum diameter of the workpiece;

Further, the clamping positioning mechanism includes a clamping block that is slidably connected to the slide plate along the radial direction of the cavity, and is supported between the clamping block and the slide plate along the radial direction of the cavity to provide radially inward elastic force for the clamping block elastic parts;

Further, the clamping block is slidably connected to the slide plate through a connecting rod; the connecting rod extends out of the sliding plate through the side wall of the cavity, and a connecting plate is fixedly installed on the protruding end of the connecting rod; position screw; the limit screw is arranged radially along the cavity for abutting against the outer wall of the slide plate to limit the sliding stroke of the clamping block; the clamping positioning mechanism also includes a pusher that is rotatably connected to the slide plate and used to push the connecting plate to move Rod; the connecting plate is fixed with a support rod for supporting in the middle of the push rod and then transmitting the thrust of the push rod to the connecting plate.

The beneficial effect of the utility model is that: the feeding plate of the broaching machine of the utility model can clamp and position the workpiece in the cavity of the slide plate through the clamping and positioning mechanism, and perform certain positioning on the workpiece along the circumferential direction of the workpiece, and allow the workpiece to translate The rotation of the workpiece is limited under certain conditions, and the consistency of the relative position of the workpiece on the workbench is improved. The processed product has a uniform structure and a high pass rate. It does not need to manually hold the workpiece, which is conducive to realizing the automation of finishing processing and improving production efficiency. The waterproof safety door can be closed during processing, which can improve safety, and the metal chips between the workpiece and the worktable can be automatically removed during the moving process, reducing friction and damage to the surface of the workpiece.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a top view of FIG. 1 .

Detailed ways

Fig. 1 is a schematic structural view of the utility model, and Fig. 2 is a top view of Fig. 1, as shown in the figure: the feeding plate of the broaching machine in this embodiment includes a base 9, a transition piece 8, a first positioning rod 10, and a second positioning rod 11. Sliding plate 1, clamping and positioning mechanism and chip removal block 15 fixed on base 9; said sliding plate 1 is slidably connected to transition piece 8 through first positioning rod 10 along the length of first positioning rod 10 with a single degree of freedom. The transition piece 8 is slidably connected to the base 9 through the second positioning rod 11 along the length of the second positioning rod 11 with a single degree of freedom. The first positioning rod 10 and the second positioning rod 11 are perpendicular to each other; A cavity for accommodating the workpiece 12; the clamping and positioning mechanism is installed on the slide plate 1 for clamping and positioning the workpiece 12 along the radial direction of the cavity; an air cavity is formed between the chip removal block 15 and the base 9; The chip removal block 15 is provided with an air port 16 communicating with the air chamber for leading out the wind in the air chamber and removing metal shavings on the workbench; the base 9 is provided with an air duct communicating with the air chamber; The positioning mechanism can be a jacking screw, a three-jaw chuck and other devices installed on the slide plate 1, which can press the workpiece 12 to the inner wall of the cavity for positioning, or only use the clamping and positioning mechanism to position the workpiece 12, all of which can realize the present invention. The purpose of the utility model: because the slide plate 1 can only translate in the horizontal plane, the workpiece 12 can only translate with the slide plate 1 after being clamped in the slide plate 1, so as to realize a certain positioning of the workpiece 12 along the circumferential direction of the workpiece 12 and improve the workpiece 12. Consistency of the relative position on the workbench, the processed product has good structural uniformity and high pass rate; connect the air duct on the base 9 to the air supply system, and when the base 9 is moved, the workbench can be opposite to the air outlet 16 The metal shavings on the area are removed to prevent the metal shavings from causing wear on the surface of the workpiece 12 and reduce the damage to the surface of the workpiece 12.

In this embodiment, both the first positioning rod 10 and the second positioning rod 11 are fixed on the transition piece 8, and between the first positioning rod 10 and the slide plate 1 and between the second positioning rod 11 and the base 9 are all passed through linear bearings. Sliding connection, the sliding resistance is small, which is beneficial to the operation of the mechanism.

In this embodiment, it also includes an elastic positioning member 14 for positioning the slide plate 1 along the radial direction of the cavity in the slide plate 1, so that the slide plate 1 is kept in a fixed position in a free state, and the relative position of the workpiece 12 on the workbench is improved. Consistency of location.

In this embodiment, the elastic positioning member 14 is a spring, and there are at least two springs uniformly arranged around the circumference of the cavity of the slider 1 , and the springs are connected between the slider 1 and the base 9 .

In this embodiment, the tuyere 16 is a strip-shaped hole arranged horizontally; when the base 9 is moved, the strip-shaped hole sweeps a larger area, and there is no omission, the cleaning is thorough, and the debris removal effect is good.

In this embodiment, the tuyere 16 is inclined downward; the air cavity is provided with a V-shaped groove corresponding to the tuyere 16; the angle between the two side walls of the V-shaped groove and the tuyere 16 is the same; The airflow is guided to reduce the airflow resistance and reduce the load of the air supply system.

In this embodiment, the length of the tuyere 16 is greater than the maximum diameter of the workpiece 12; when the base 9 is moved, the area swept by the strip hole can cover the entire workpiece 12, ensuring that no metal chips are mixed between the workpiece 12 and the workbench, and ensuring that the workpiece 12 surface precision, improve processing quality.

In this embodiment, the clamping positioning mechanism includes a clamping block 2 that is slidably connected to the slide plate 1 along the radial direction of the cavity, and is supported between the clamping block 2 and the slide plate 1 along the radial direction of the cavity to serve as a clamping block. 2. The elastic member 3 that provides radially inward elastic force; the radial positioning of the workpiece 12 can be performed by using the elastic force of the elastic member 3, which can eliminate the fit gap between the clamping block 2 and the workpiece 12 and improve the positioning accuracy; Two clamping jaws 13 are detachably fixed, and the two clamping jaws 13 and the clamping block 2 are arranged in an equilateral triangle. The surface of the two clamping jaws 13 and the clamping block 2 for clamping the workpiece 12 is a cylindrical surface, and the cylindrical surface The axis is parallel to the axis of the workpiece 12, so that the linear contact between the clamping jaws 13 and the clamping block 2 and the workpiece 12 is small, which is conducive to the rotation of the workpiece 12 around its own axis under the guidance of the tool. The two clamping jaws 13 are detachable. Therefore, according to the size of the workpiece 12, a corresponding length of the jaws 13 can be installed.

In this embodiment, the clamping block 2 is slidably connected to the slide plate 1 through the connecting rod; the elastic member 3 can be set on the outside of the connecting rod; it can ensure the stability of the connection structure between the clamping block 2 and the slide plate 1, which is convenient The installation of the clamping block 2 and the reliable positioning of the elastic member 3 at the same time have a compact structure and reasonable use of space. The elastic member 3 is a spring or elastic rubber; the connecting rod extends out of the slide plate 1 through the side wall of the cavity. The extending end of the connecting rod is fixedly installed with a connecting plate 4; the connecting plate 4 is provided with a limit screw 5; the limit screw 5 is arranged radially along the cavity for pushing against the outer wall of the slide plate 1 to thereby limit the clamping block 2 The sliding stroke has good integrity, avoids the clamping block 2 from falling off, improves the stability of the mounting structure of the clamping block 2, and facilitates the clamping of the workpiece 12; The push rod 6 that the connecting plate 4 moves; the connecting plate 4 is fixed with a support rod 7 that is used to support the middle of the push rod 6 and then transmits the thrust of the push rod 6 to the connecting plate 4; 6. Limiting posts in the range of corners, pushing the push rod 6 can drive the connecting plate 4 to slide through the support rod 7, and then drive the clamping block 2 to slide through the connecting rod, which is easy to use.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (9)

1. a broaching machine delivery sheet, is characterized in that: comprise base, transition piece, the first backstay, the second backstay, slide plate, clamping positioning mechanism and be fixed on the debris removal block of base; Described slide plate is slidably connected to transition piece along the first backstay length to single-degree-of-freedom by the first backstay, and described transition piece is slidably connected to base along the second backstay length to single-degree-of-freedom by the second backstay, and the first backstay is mutually vertical with the second backstay; The vertically through cavity volume for holding workpiece is provided with in described slide plate; Described clamping positioning mechanism is installed on slide plate for carrying out clamping and positioning along cavity volume radial direction to workpiece; Wind chamber is formed between described debris removal block and base; Debris removal block be provided be communicated with wind chamber for the wind in wind chamber being derived and then removing the air port of the metal fillings on workbench; Described base is provided with the air channel being communicated in wind chamber.

2. broaching machine delivery sheet according to claim 1, is characterized in that: described first backstay and the second backstay are all fixed on transition piece, are all slidably connected by linear bearing between the first backstay and slide plate and between the second backstay and base.

3. broaching machine delivery sheet according to claim 2, is characterized in that: also comprise the flexible positioning piece that the radial direction along the cavity volume in slide plate positions slide plate.

4. broaching machine delivery sheet according to claim 3, is characterized in that: described flexible positioning piece is spring, and described spring is at least two and circumferencial direction around the cavity volume of slide plate is evenly arranged, and spring is connected between slide plate and base.

5. broaching machine delivery sheet according to claim 4, is characterized in that: described air port is horizontally disposed bar hole; The area of section in described air port is less than the area of section in air channel.

6. broaching machine delivery sheet according to claim 5, is characterized in that: the downward-sloping setting in described air port; Corresponding air port place, described wind chamber is provided with V-type groove; The two side of described V-type groove is identical with the angle in air port.

7. broaching machine delivery sheet according to claim 6, is characterized in that: the length in described air port is greater than the maximum gauge of workpiece.

8. broaching machine delivery sheet according to claim 7, is characterized in that: described clamping positioning mechanism comprise along cavity volume radially slide the clamp that is connected to slide plate and along cavity volume radial support between clamp and slide plate for providing the elastic component of radially inner elastic force for clamp.

9. broaching machine delivery sheet according to claim 8, is characterized in that: described clamp is slidably connected to slide plate by connecting rod; Described connecting rod extend out to outside slide plate through cavity volume sidewall, and the external part of connecting rod is installed with connecting plate; Described connecting plate is provided with stop screw; Described stop screw arranges the sliding stroke for withstanding on slide plate outer wall and then restriction clamp along cavity volume radial direction; Described clamping positioning mechanism also comprises the push rod for promoting connecting plate movement being rotationally connected with slide plate; Described connecting plate is fixed with for being supported in the middle part of push rod and then the thrust of push rod being passed to the support bar of connecting plate.