Pushing mechanism for broaching machine

Abstract

The utility model belongs to the technical field of vertical broaching machines, and particularly relates to a material pushing mechanism for a broaching machine, which comprises a lifting seat arranged on the broaching machine in a lifting and sliding manner, the lower end part of the lifting seat extends forwards to integrally form a working table, a supporting plate is arranged on the working table in a sliding manner, and an assembly hole is formed in the supporting plate. A supporting plate is arranged on the workbench, an assembling hole is formed in the supporting plate, a base plate is arranged between the workbench and the supporting plate, the base plate is fixedly connected with the workbench, the base plate is located below the assembling hole, and two through holes used in cooperation with the assembling hole are formed in the base plate. The material pushing mechanism for the broaching machine can also prevent an operator from being contaminated by a cooling medium when taking and placing a workpiece so as not to contaminate clothes.

Description

Technical Field

[0001] This utility model belongs to the field of vertical broaching machine technology, and specifically refers to a material pushing mechanism for a broaching machine. Background Technology

[0002] A broaching machine is a machine tool that uses various broaches to perform broaching operations on the surface or inner hole of a workpiece in various shapes. Broaching can achieve high dimensional accuracy and low surface roughness, has high productivity, and is suitable for mass production. According to the different surfaces being processed, broaching machines can be divided into internal broaching machines and external broaching machines. Internal broaching machines are often used for broaching internal surfaces, such as spline holes and square holes. Because there is a certain distance between the machining station and the work station on commercially available broaching machines, manual loading and unloading requires leaning forward, which is inconvenient and carries the risk of clothing getting caught in the machine, causing the workpiece to fall. Furthermore, broaching processes require cooling media such as water or oil, and operators may become soiled with the cooling media when handling workpieces.

[0003] Chinese Patent Publication No. CN222470919U discloses a three-station two-stage pushing device and a vertical broaching machine, which includes a base with a first slide rail; an intermediate plate slidably mounted on the first slide rail and connected to a first driving device for driving it to slide along the first slide rail; a second slide rail on the intermediate plate; and an operating plate slidably mounted on the second slide rail and connected to a second driving device for driving it to slide along the second slide rail. The first and second slide rails extend in the same direction. The operating plate has multiple workpiece positions for placing workpieces. Although this type of broaching machine can solve the above-mentioned technical problems, the strength of the operating plate is insufficient. When the broaching machine is working, the operating plate needs to bear the force applied by the broach to the workpiece, causing the operating plate to bend downwards. Long-term use will cause the operating plate to bend and deform, which will affect the positional accuracy of the workpiece positions during processing, and thus affect the processing accuracy of the workpiece. Summary of the Invention

[0004] The purpose of this utility model is to provide a pusher mechanism for a broaching machine with a reasonable structure that can ensure processing accuracy and prevent operators from getting their clothes dirty due to the cooling medium when picking up and placing workpieces.

[0005] The purpose of this utility model is achieved as follows:

[0006] A pushing mechanism for a broaching machine includes a lifting seat that is slidably and liftingly mounted on the broaching machine. The lower end of the lifting seat extends forward and is integrally formed with a worktable. A support plate is slidably mounted on the worktable. An assembly hole is provided on the support plate. A pad is provided between the worktable and the support plate. The pad is fixedly connected to the worktable. The pad is located below the assembly hole and has a through hole that mates with the assembly hole.

[0007] In the above-mentioned broaching press pusher mechanism, the support plate has at least two mounting holes arranged side by side for mounting fixtures.

[0008] In the aforementioned broaching press pusher mechanism, three assembly holes are arranged side by side on the support plate, and a pad is correspondingly arranged below each assembly hole.

[0009] In the aforementioned broaching press pusher mechanism, a gap is left between two adjacent pads.

[0010] In the aforementioned broaching press pushing mechanism, there is a sliding gap between the pad plate and the support plate.

[0011] In the above-mentioned broaching press pushing mechanism, the support plate is slidably mounted on the worktable via a slider rail assembly, and the left and right sides of the worktable are respectively driven by telescopic devices to move the support plate back and forth.

[0012] In the aforementioned broaching press pushing mechanism, shielding covers for blocking the telescopic device and the slider rail assembly are respectively installed on the left and right sides of the support plate.

[0013] In the aforementioned broaching press pushing mechanism, the telescopic device is a hydraulic cylinder or a pneumatic cylinder.

[0014] In the aforementioned broaching press pushing mechanism, an adjusting bolt is provided on the side of the support plate near the lifting seat.

[0015] In the above-mentioned broaching press pushing mechanism, the lifting seat is provided with a receiving groove corresponding to the adjusting bolt.

[0016] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0017] This invention uses a pad on the workbench to support the support plate, thus preventing the support plate from deforming significantly during the broaching process and affecting machining accuracy. Furthermore, the support plate has three machining stations, which improves machining efficiency. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second structural schematic diagram of this utility model;

[0020] Figure 3 This is the front view of this utility model;

[0021] Figure 4 yes Figure 3 Enlarged view of point A;

[0022] Figure 5 This is an exploded view of the present invention;

[0023] Figure 6 yes Figure 5 Enlarged view of point B.

[0024] The meaning of the labels in the diagram:

[0025] 1. Lifting seat; 2. Worktable; 21. Telescopic device; 22. Slider rail assembly; 3. Support plate; 31. Assembly hole; 32. Through hole; 33. Cover; 34. Adjusting bolt; 35. Receiving groove; 4. Pad; 5. Gap; 42. Sliding gap. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments:

[0027] like Figures 1-6 As shown: A broaching press pusher mechanism includes a lifting seat 1 that is slidably mounted on the broaching press. The lower end of the lifting seat 1 extends forward and is integrally formed with a worktable 2, which can improve the overall strength and toughness. A support plate 3 is slidably mounted on the worktable 2. The support plate 3 is provided with an assembly hole 31. A pad 4 is provided between the worktable 2 and the support plate 3. The pad 4 is fixedly connected to the worktable 2 by bolts. The pad 4 is located below the assembly hole 31 and is provided with two through holes 32 that cooperate with the assembly hole 31. Specifically, the through holes 32 and the assembly hole 31 are designed to allow the broach to pass through. The pad 4 can support the slightly deformed support plate 3 when the broach is working, so as to prevent the support plate 3 from deforming after long-term use and ensure machining accuracy. The worktable 2 is also provided with a hole for the broach to pass through.

[0028] In this embodiment, three mounting holes 31 are arranged side by side on the support plate 3. The mounting holes 31 are for mounting the fixture, and the fixture is used to hold the workpiece. A pad 4 is arranged below each mounting hole 31. Specifically, when the workpiece is processed, the support plate 3 moves upward relative to the broach, which causes the support plate 3 to bend and deform slightly downward. At this time, the lower side of the support plate 3 contacts the pad 4, and the pressure is dispersed through the pad 4. This can reduce the deformation of the support plate 3 and improve the processing accuracy.

[0029] A gap 5 is left between two adjacent pads 4. Specifically, this can reduce the material of the pads, save materials and reduce costs while ensuring normal use. In addition, the cost of replacing and maintaining the pads 4 is low.

[0030] There is a sliding gap 42 between the pad 4 and the support plate 3. In other words, the pad 4 and the support plate 3 are fitted with a clearance and are not directly pressed together, thereby avoiding contact between the support plate 3 and the pad 4 when sliding, and preventing abnormal wear between the support plate 3 and the pad 4.

[0031] The support plate 3 is slidably mounted on the worktable 2 via the slider rail assembly 22. That is, the worktable 2 is equipped with a rail, and the support plate 3 is equipped with a slider that cooperates with the rail for sliding. The support plate 3 can slide relative to the worktable 2. Telescopic devices 21 are provided on the left and right sides of the worktable 2. The output end of the telescopic device 21 is connected to the support plate 3 through a fisheye connector. The output end of the telescopic device 21 drives the support plate 3 to move back and forth. After the support plate 3 slides forward, the workpiece on the fixture can be replaced. When the support plate 3 slides towards the lifting seat 1, it resets. The telescopic device 21 is a hydraulic cylinder or a pneumatic cylinder.

[0032] The support plate 3 has shields 33 installed on its left and right sides to shield the telescopic device 21 and the slider rail assembly 22, respectively. The front and side of the shields are equipped with baffles to prevent impurities and debris from entering the telescopic device and the slider rail assembly, thereby extending the service life and working accuracy of the telescopic device and the slider rail assembly.

[0033] The support plate 3 is threaded with an adjusting bolt 34 on the side near the lifting seat 1. In this embodiment, two adjusting bolts 34 are spaced apart. The lifting seat 1 is provided with a receiving groove 35 corresponding to the adjusting bolt 34. When the support plate 3 is reset, that is, after the support plate 3 slides towards the lifting seat, the bottom of the receiving groove 35 can limit the adjusting bolt 34, thereby limiting the support plate 3. If the fixture at the assembly hole 31 is replaced, the adjusting bolt 34 can be rotated to change the position of the support plate 3 when reset, so that the new fixture can be coaxial with the through hole 32, so that the broach can accurately broach the workpiece on the new fixture, which has a wide range of applications.

[0034] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A pushing mechanism for a broaching machine, comprising a lifting seat (1) that is vertically and slidably disposed on the broaching machine, characterized in that: The lower end of the lifting seat (1) extends forward and is integrally formed with a worktable (2). A support plate (3) is slidably arranged on the worktable (2). An assembly hole (31) is provided on the support plate (3). A pad (4) is provided between the worktable (2) and the support plate (3). The pad (4) is fixedly connected to the worktable (2). The pad (4) is located below the assembly hole (31), and a through hole (32) is provided on the pad (4) to cooperate with the assembly hole (31).

2. The pusher mechanism for a broaching machine according to claim 1, characterized in that: The support plate (3) has at least two mounting holes (31) arranged side by side, which are used for fixture installation.

3. The pusher mechanism for a broaching machine according to claim 2, characterized in that: The support plate (3) has three mounting holes (31) arranged side by side, and a pad (4) is arranged below each mounting hole (31).

4. The pusher mechanism for a broaching machine according to claim 2, characterized in that: A gap (5) is left between two adjacent pads (4).

5. The pusher mechanism for a broaching machine according to claim 1, 2, 3, or 4, characterized in that: There is a sliding gap (42) between the pad (4) and the support plate (3).

6. The pusher mechanism for a broaching machine according to claim 5, characterized in that: The support plate (3) is slidably mounted on the workbench (2) via a slider rail assembly (22), and the left and right sides of the workbench (2) are respectively driven by the telescopic device (21) to move the support plate (3) back and forth.

7. The pusher mechanism for a broaching machine according to claim 6, characterized in that: The support plate (3) is equipped with shields (33) on the left and right sides respectively for shielding the telescopic device (21) and the slider rail assembly (22).

8. The pusher mechanism for a broaching machine according to claim 7, characterized in that: The telescopic device (21) is a hydraulic cylinder or a pneumatic cylinder.

9. The pusher mechanism for a broaching machine according to claim 5, characterized in that: The support plate (3) is provided with an adjusting bolt (34) on the side near the lifting seat (1).

10. The pusher mechanism for a broaching machine according to claim 9, characterized in that: The lifting seat (1) is provided with a receiving groove (35) corresponding to the adjusting bolt (34).

Images