CN106925806A - A kind of automatic pitman processing machine - Google Patents

Abstract

The invention discloses an automatic connecting rod processing machine, which comprises a work table, a work table is laid on the work table, and a fixed support is arranged on the work table; a workpiece mounting plate is straddled above the fixed support; a linear guide rail is arranged on the fixed support , there are two sets of boring mechanisms on the linear guide rail, and the two sets of boring mechanisms are respectively located on the left and right sides of the workpiece mounting plate; , boring tool holder and boring tool; the left and right ends of the fixed bracket are respectively equipped with drilling feed motors, which are connected to the feed slide plate through ball screws; two groups of large and small holes are opened on the workpiece mounting plate. And it is provided with two workpiece installation clamping mechanisms on one side of it. The present invention adopts automatic processing with four cutter positions, and every two boring cutters can complete the boring processing of one connecting rod, so one action can simultaneously complete the processing of two connecting rods, the processing efficiency is high, and the quality is reliable.

Description

An automatic connecting rod processing machine

technical field

The invention relates to a multi-cutter automatic special processing equipment controlled by PLC, in particular to an automatic connecting rod processing machine, which is used for automatic processing of a certain automobile connecting rod hole.

Background technique

At present, most of the connecting rod holes of an existing automobile are milled by a machining center, but the market price of the machining center is very expensive, resulting in high man-hour costs. Moreover, the existing machining center milling method for this kind of automotive connecting rod hole can only process one hole for each cutting, which has low efficiency and cannot be adapted to mass production. At the same time, the milling process of the existing machining center for this type of automotive connecting rod hole has a relatively large machining vibration, and the machining noise not only directly endangers the health of the operator, but also indirectly damages the environment, resulting in noise pollution.

Contents of the invention

In order to make up for the deficiencies in the prior art, the present invention aims to provide an automatic connecting rod processing machine, which can process four holes of two automobile connecting rods at one time through automatic processing with multiple tool positions, so as to reduce labor intensity ,Increase productivity.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:

An automatic connecting rod processing machine, comprising a work table, a work table is laid on the work table, a fixed bracket is arranged on the work table; a workpiece mounting plate is set across the center of the fixed bracket, The front and rear ends of the workpiece mounting plate are fixed on the worktable; the left and right ends of the fixed bracket are respectively horizontally provided with a drilling feed motor; the fixed bracket is horizontally provided with a pair of linear guide rails, Two sets of boring mechanisms are arranged on the linear guide rail, and the two sets of boring mechanisms are respectively located on the left and right sides of the workpiece mounting plate and are arranged oppositely;

The boring mechanism of each group is composed of a feed slide plate, two boring tool rotary drive motors, two boring tool rotary drive motor supports, two boring tool holders and two boring tools; the feed slide plate is movable It is arranged on the linear guide rail, and a ball screw is arranged between the feed slide and the drilling feed motor on the same side, and one end of the ball screw is connected to the lower plane of the feed slide. The other end of the ball screw is connected to the rotating shaft of the drilling feed motor; the two boring tool holders are respectively arranged on the front and rear ends of the plane on the feeding slide, and the two boring The knives are respectively arranged at the inner ends of the two boring tool holders, the two boring tool rotating drive motor supports are respectively arranged at the outer ends of the two described boring tool holders, and the two boring tool rotating driving motors are respectively arranged On the brackets of the two boring cutter rotating drive motors;

One side of the workpiece mounting plate is provided with two workpiece mounting and clamping mechanisms, and each of the workpiece mounting and clamping mechanisms is composed of a positioning block at the small end of the workpiece, a positioning block at the large end of the workpiece and a clamping block for the workpiece; A large hole and a small hole are provided on the workpiece mounting plate between the positioning block at the small end of the workpiece and the positioning block at the large end of the workpiece, and the small hole is located at the position where the positioning block at the small end of the workpiece is located. side, the large hole is located on the side where the large end positioning block of the workpiece is located; the processed workpiece blank is fixed on one side of the workpiece mounting plate by the workpiece mounting clamping mechanism, and the workpiece after fixing The blank, whose small end coincides with the small hole, and whose large end coincides with the large hole; the two boring tools on one side of the workpiece mounting plate are respectively aligned with the two large holes, and are located on the other side of the workpiece mounting plate The two boring tools are aligned with the two small holes respectively.

Further, the work table is provided with an electrical control box and an operation control button table for controlling the drilling feed motor and the boring tool rotation driving motor.

Further, the electrical control box is provided with a signal lamp.

Further, the operation control button table is provided with a start button and an emergency stop button.

Further, four bottom corners of the work table are respectively provided with a horizontal adjustment foot.

Further, a cutting fluid recovery tank is provided on the rear side of the work table.

Further, the cutting fluid recovery tank is placed with a cutting fluid tank.

Further, the cutting fluid tank is provided with a cutting fluid recovery motor.

Operating principle and working process of the present invention are as follows:

The operator installs the two workpiece blanks on the two workpiece mounting and clamping mechanisms respectively, and pays attention to aligning the small end of the workpiece blank with the positioning block at the small end of the workpiece, and aligning the large end of the workpiece blank with the positioning block at the large end of the workpiece. Turn the workpiece clamping block, press the workpiece clamping block on the workpiece blank, and tighten the screws to complete the clamping of the workpiece blank (automotive connecting rod).

After the workpiece blank is clamped, the operator presses the start button with his left and right hands at the same time, the signal light turns red, and the machine starts to work. The left and right drilling feed motors work at the same time. Through the ball screw and linear guide rail, the two sets of boring mechanisms are driven to move to the center at the same time, so that the four boring tools are simultaneously fed to the workpiece blank. The rotation of the boring tool drives the motor to rotate, which drives the rotation of the boring tool to realize the main movement of the boring hole. Carry out the boring action, and the first delay switch of the PLC starts timing. When the boring action is completed, the timing ends, and the first control switch triggers the signal, so that the boring tool rotation drive motor stops working, the boring tool stops working, and the drills on the left and right sides The hole feed motor is reversed at the same time, and the two groups of boring mechanisms are driven to move in reverse to the left and right sides through the ball screw and guide rail respectively, and the boring tool exits the hole. The PLC second delay switch starts timing. When the exit is completed, the second The control switch triggers the signal, and the left and right drilling feed motors stop working to complete the finishing of the entire automobile connecting rod hole. When the signal light turns green, the operator mounts the two workpiece blanks again.

The beneficial effects of the present invention are:

1. The present invention adopts multi-tool automatic processing, and is equipped with 4 boring tools, and every 2 boring tools can complete the boring process of 2 holes of a connecting rod workpiece, so one action can simultaneously complete the boring of two connecting rod workpieces Processing, high processing efficiency, reliable quality.

2. According to the characteristics of the large and small ends of the connecting rod, the present invention adopts the error-proof positioning fixture and selects the quick clamping device, which has high working efficiency, reliable clamping and low labor intensity.

3. The present invention realizes fully automatic control and is easy to operate. The whole equipment only needs one operator, and the operator only needs to press the start button after the two connecting rod workpieces are respectively clamped, and the equipment can automatically carry out boring processing , low manufacturing cost.

4. The invention is driven by a stepping motor, driven by a lead screw nut pair and a linear guide rail, fine-tuning the automatic drilling mode of the boring tool, and equipped with PLC technology to control the feed speed and time, control the drilling depth, the drilling action is reliable, and the position Accurate and high precision.

5. In the present invention, the operator's left and right hands must press the start button at the same time before the equipment starts to work. If unexpected situations such as tool jamming occur, the equipment will automatically alarm and stop. At the same time, the operation center is equipped with an emergency stop switch, which can be stopped with one key All work to ensure the safety of personnel and equipment.

6. The bottom of the present invention is equipped with a cutting fluid circulation device, which ensures the cleanliness of the recycled cutting fluid through filtration, energy saving and environmental protection.

7. The size of the worktable of the present invention is 2400mm*1000mm*1400mm, and the distance between the worktable and the ground is 700mm, which is in line with ergonomics. The frame of the work table is assembled from 60mm*60mm square tube steel, covered with baffles on the outside, and the work table is made of 15mm steel plate, with high overall strength. The control circuit and pneumatic circuit inside the work table are arranged separately to avoid interference.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below. The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is the front perspective view of the present invention;

Fig. 2 is a top perspective view of the present invention;

Fig. 3 is the installation sketch map of workpiece blank of the present invention;

Fig. 4 is a rear perspective view of the present invention.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

Referring to Fig. 1, an automatic connecting rod processing machine includes a working table 1 with a size of 2400mm*1000mm*1400mm, and the frame of the working table 1 is made of 60mm*60mm square tube steel. The four bottom corners of the work table 1 are respectively provided with a horizontal adjustment foot 12, and a work table 2 is laid on the work table 1. The work table 2 is made of 15mm steel plate. The height is 700mm, and a fixed bracket 21 is arranged on the work surface 2; a workpiece mounting plate 6 is straddled above the center of the fixed bracket 21, and the front and rear ends of the workpiece mounting plate 6 are fixed on the work surface 2; the left and right ends of the fixed bracket 21 are respectively horizontally provided with a drilling feed motor 3; the fixed bracket 21 is horizontally provided with a pair of linear guide rails 30, and two groups of Boring mechanism 5, two groups of said boring mechanism 5 are respectively located on the left and right sides of said workpiece mounting plate 6, and are relatively arranged; Said work table 1 is provided with for controlling said drilling feed motor 3 and said The electrical control box 7 and the operation control button table 9 of the boring tool rotating drive motor 22, the electrical control box 7 is provided with a signal lamp 8.

Referring to Fig. 2, each group of the boring mechanism 5 is composed of a feed slide 25, two boring cutter rotating drive motors 22, two boring cutter rotating driving motor supports 23, two boring cutter holders 24 and two Boring tool 26; the feed slide 25 is movably arranged on the linear guide rail 30, and a ball screw 4 is arranged between the feed slide 25 and the drilling feed motor 3 on the same side , one end of the ball screw 4 is connected to the lower plane of the feed slide 25, and the other end of the ball screw 4 is connected to the rotating shaft of the drilling feed motor 3; the two boring tools The frame 24 is respectively arranged on the front and rear ends of the upper plane of the feed slide plate 25, and the two boring cutters 26 are respectively arranged on the inner sides of the two boring cutter holders 24, and the two boring cutters rotate to drive the motor bracket 23 are respectively arranged on the outer ends of the two boring tool holders 24, and the two boring tool rotating drive motors 22 are respectively arranged on the two boring tool rotating driving motor brackets 23; A start button 11 and an emergency stop button 28 are provided.

Referring to Fig. 3, one side of the workpiece mounting plate 6 is provided with two workpiece mounting clamping mechanisms 27, and each of the workpiece mounting clamping mechanisms 27 is positioned by a positioning block 31 at the small end of the workpiece and a positioning block at the large end of the workpiece. Block 32 and workpiece clamping block 33 are formed; The workpiece mounting plate 6 between the positioning block 31 at the small end of the workpiece and the positioning block 32 at the large end of the workpiece is provided with a large hole and a small hole, and the The small hole is located at the side where the positioning block 31 at the small end of the workpiece is located, and the large hole is located at the side at which the positioning block 32 at the large end of the workpiece is located; the processed workpiece blank 34 is installed by the workpiece clamping mechanism 27 is fixed on one side of the workpiece mounting plate 6, and the small end of the workpiece blank 34 after fixing coincides with the small hole, and its large end coincides with the large hole; it is located on one side of the workpiece mounting plate 6 The two boring cutters 26 are respectively aligned with the two large holes, and the two boring cutters 26 positioned on the other side of the workpiece mounting plate 6 are respectively aligned with the two small holes.

As shown in Fig. 4, a cutting fluid recovery tank 43 is provided on the rear side of the work table 1, and a cutting fluid tank 41 is placed in the cutting fluid recovery tank 43, and a cutting fluid tank 41 is provided with a cutting fluid tank 41. Liquid recovery motor 42.

Operating principle and working process of the present invention are as follows:

The operator installs the two workpiece blanks 34 on the two workpiece mounting and clamping mechanisms 27 respectively, and pays attention to aligning the small end of the workpiece blank 34 with the positioning block 31 at the small end of the workpiece, and aligning the large end of the workpiece blank 34 with the large end of the workpiece. The end positioning block 32, by rotating the workpiece clamping block 33, the workpiece clamping block 33 is pressed onto the workpiece blank 34, and the screws are tightened to complete the clamping of the workpiece blank 34 (automobile connecting rod).

After the workpiece blank 34 is clamped, the operator presses the start button 11 with his left and right hands simultaneously, the signal light 8 turns red, and the machine starts to work. The two drilling feed motors 3 on the left and right work at the same time. Through the ball screw 4 and the linear guide rail 30, the two groups of boring mechanisms 5 are driven to move to the center at the same time, so that the four boring tools 26 are fed to the workpiece blank 34 at the same time. Boring cutter rotates and drives motor 22 to rotate, drives boring cutter 26 to rotate, realizes the main motion of boring. Carry out the boring action, and the first delay switch of the PLC starts timing. When the boring action is completed, the timing ends, and the first control switch triggers the signal, so that the boring tool rotation drive motor 22 stops working, and the boring tool 26 stops working. The drilling feed motor 3 reverses at the same time, and the two groups of boring mechanisms 5 are driven to move in reverse to the left and right sides through the ball screw 4 and the linear guide rail 30, and the boring tool exits the hole, and the second delay switch of the PLC starts timing , when the exit is completed, the second control switch triggers the signal, and the left and right drilling feed motors 3 stop working to complete the finishing of the entire automobile connecting rod hole. When the signal light 8 turns green, the operator installs the two workpiece blanks 34 again.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. An automatic connecting rod processing machine, characterized in that it includes a work table (1), a work table (2) is laid on the work table (1), and a work table (2) is provided on the work table (2). A fixed bracket (21); a workpiece mounting plate (6) is arranged above the center of the fixed bracket (21), and the front and rear ends of the workpiece mounting plate (6) are fixed on the work table (2); The left and right ends of the fixed bracket (21) are respectively provided with a drilling feed motor (3) horizontally; the fixed bracket (21) is provided with a pair of linear guide rails (30) laterally, and the linear guide rails ( 30) There are two sets of boring mechanisms (5), and the two sets of boring mechanisms (5) are respectively located on the left and right sides of the workpiece mounting plate (6), and are arranged oppositely; The boring mechanism (5) of each group consists of a feed slide plate (25), two boring cutter rotary drive motors (22), two boring cutter rotary drive motor supports (23), two boring cutter holders (24 ) and two boring tools (26); the feed slide (25) is movably arranged on the linear guide rail (30), and the feed slide (25) and the same side of the drilling A ball screw (4) is provided between the feed motors (3), one end of the ball screw (4) is connected to the lower plane of the feed slide (25), and the ball screw (4) The other end is connected to the rotating shaft of the drilling feed motor (3); the two boring tool holders (24) are respectively arranged at the front and rear ends of the upper plane of the feed slide (25), and the two Boring tools (26) are respectively arranged on the inner ends of the two boring tool holders (24), and the two boring tool rotating drive motor brackets (23) are respectively arranged on the outer sides of the two boring tool holders (24) end, the two boring cutter rotating drive motors (22) are respectively arranged on the two boring cutter rotating driving motor brackets (23); One side of the workpiece mounting plate (6) is provided with two workpiece mounting clamping mechanisms (27), each of the workpiece mounting clamping mechanisms (27) is composed of a workpiece small end positioning block (31), a large workpiece end positioning block (32) and workpiece clamping block (33); located on the workpiece mounting plate (6) between the workpiece small end positioning block (31) and the workpiece large end positioning block (32) Both have a large hole and a small hole, and the small hole is located on the side where the positioning block (31) at the small end of the workpiece is located, and the large hole is located at the side where the positioning block (32) at the large end of the workpiece is located. One side; the processed workpiece blank (34) is fixed on one side of the workpiece mounting plate (6) through the workpiece installation clamping mechanism (27), and the workpiece blank (34) after fixing, its small end It coincides with the small hole, and its large end coincides with the large hole; the two boring tools (26) on one side of the workpiece mounting plate (6) are respectively aligned with the two large holes, and are located on the workpiece mounting plate (6). ) The two boring tools (26) on the other side are aligned with the two small holes respectively. 2. The automatic connecting rod processing machine according to claim 1, characterized in that: the work table (1) is provided with a motor for controlling the drilling feed (3) and the boring tool rotation drive motor ( 22) Electrical control box (7) and operation control button table (9). 3. The automatic connecting rod processing machine according to claim 2, characterized in that: the electrical control box (7) is provided with a signal lamp (8). 4. The automatic connecting rod processing machine according to claim 2, characterized in that: a start button (11) and an emergency stop button (28) are arranged on the operation control button table (9). 5. The automatic connecting rod processing machine according to claim 1, characterized in that: the four bottom corners of the work table (1) are respectively provided with a horizontal adjustment foot (12). 6. The automatic connecting rod processing machine according to claim 1, characterized in that: a cutting fluid recovery tank (43) is provided on the rear side of the work table (1). 7. The automatic connecting rod processing machine according to claim 6, characterized in that a cutting fluid tank (41) is placed in the cutting fluid recovery tank (43). 8. The automatic connecting rod processing machine according to claim 7, characterized in that: the cutting fluid tank (41) is provided with a cutting fluid recovery motor (42).