CN114178859B - A horizontal gantry machining center device - Google Patents

Abstract

A horizontal gantry machining center device relates to the technical field of clamping devices and comprises a connecting rod bracket, a fork head bracket and an end socket, wherein the connecting rod bracket and the fork head bracket are horizontally arranged in parallel, the fork head bracket and the end socket are positioned at two ends of the connecting rod bracket, and the connecting rod bracket, the fork head bracket and the end socket are coaxially and independently arranged in a rotating mode. The invention solves the problem that the device in the prior art needs to replace the corresponding clamping tool when carrying out various operations such as reaming, end surface grinding, welding, trimming errors and the like on the traction rod.

Description

A horizontal gantry machining center device

Technical field

The invention relates to the technical field of clamping devices, and in particular to a horizontal gantry machining center device.

Background technique

Gantry machining center refers to a machining center with the spindle axis set perpendicularly to the workbench. It is mainly suitable for processing large parts. There are fixed beam type, moving beam type, moving column type and crane type. There are also multiple types of gantry machining centers in the above combined forms. , the processing characteristics, capabilities, and product processing purposes are not exactly the same. When used in the gantry machining center, the workpiece needs to be fixed by a clamp. In a broad sense, any process in the process is used to quickly and Devices that conveniently and safely install workpieces can be called fixtures. When processing workpieces on machine tools, in order to ensure that the surface of the workpiece can meet the technical requirements such as size, geometry, and mutual position accuracy with other surfaces specified in the drawing, the fixture must be used before processing. The workpiece must be installed and clamped firmly before the workpiece can be cut. The existing horizontal gantry machining center uses a slender workpiece clamp to clamp the cutting device, which cannot be applied to workpieces of different specifications and cannot process multiple workpieces at the same time. Clamping and fixing makes it impossible to cut multiple workpieces in a short time and cannot effectively improve work efficiency. Therefore, in order to solve the above problems, we designed a horizontal gantry machining center with a slender workpiece clamp. cut-off device,

The drawbar of the SS9/SS3 electric locomotive is an important part of the bogie steering connection. The two ends of the drawbar are the end hole and the fork hole; the end hole and the fork hole are set at 90° and are not on the same plane. ;Usually, SS9 type drawbars are only processed with fork holes; SS3 type drawbars are only processed with end holes. Since the processing of the end hole/fork hole requires higher machining accuracy to ensure, but due to the peculiarity that the end hole/fork hole to be processed of the drawbar is not 90° on the same plane, there is no processing benchmark. The phenomenon of difficult positioning. The drawbar of an electric locomotive is an important component of the bogie steering connection. It mainly consists of a fork and an end that connects the two ends of the intermediate link. The fork and end have fork holes and end holes. The production and manufacture of a drawbar requires multiple process steps, including forging and casting, hole expansion, end surface grinding, welding, and trimming errors.

The above multiple steps usually need to be completed on multiple pieces of equipment, and every time the processing equipment is replaced, the positioning reference for the drawbar processing and the tightness of the clamping need to be readjusted. This process not only consumes human resources, but also lengthens the drawbar. The molding time reduces the production efficiency. More importantly, frequent replacement of processing equipment may make the accuracy standards of each step of processing inconsistent, resulting in excessive manufacturing errors that cannot be adjusted.

However, as the existing devices are used in production, the shortcomings of this technology are gradually exposed:

First, during the processing of the drawbar, multiple operations such as hole expansion, end surface grinding, welding, and error correction are required. Each operation requires the replacement of the corresponding clamping tooling, which is cumbersome and time-consuming. Effortless.

Second, after replacing the clamping tooling of the existing device, it needs to be repositioned, and the tightness of the clamping needs to be readjusted, which prolongs the molding time of the drawbar; more importantly, frequent replacement of processing equipment may cause The accuracy standards for each step of processing are not uniform, resulting in excessive manufacturing errors.

In summary, it can be seen that the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it.

Contents of the invention

In view of the deficiencies in the prior art, the present invention provides a horizontal gantry machining center device to solve the problem when the device in the traditional technology performs multiple operations such as hole expansion processing, end surface grinding, welding processing, and trimming errors on the drawbar. The corresponding clamping tooling needs to be replaced; it also needs to be repositioned, and the tightness of the clamping needs to be readjusted. Frequent replacement of processing equipment may make the accuracy standards of each step of processing inconsistent, resulting in excessive manufacturing errors. phenomenon occurs.

In order to achieve the above objects, the present invention provides the following technical solutions:

A horizontal gantry machining center device, including a connecting rod bracket arranged horizontally and a fork bracket and an end bracket located at both ends of the connecting rod bracket. The connecting rod bracket, the fork bracket and The end brackets are arranged to rotate coaxially and independently.

As an optimized solution, the connecting rod bracket is also provided with a limiting mechanism to prevent it from rotating along with the fork bracket or the end bracket.

As an optimized solution, the lateral distance between the fork bracket and the end bracket and the connecting rod bracket is adjusted through a traverse member respectively.

As an optimized solution, a connecting rod fixing bracket is installed on the connecting rod bracket.

As an optimized solution, the connecting rod bracket is also provided with a reversing member for adjusting the direction of the connecting rod fixed frame.

As an optimized solution, the fork head bracket is provided with a fork head holder for fixing the fork head.

As an optimized solution, the end bracket is provided with an end fixing bracket for fastening the end.

As an optimized solution, the two ends of the connecting rod bracket are coaxially fixed with guide posts, and the fork bracket and the end bracket are provided with guide holes that are fitted to the guide posts.

As an optimized solution, the connecting rod fixing frame includes a connecting rod fixing plate fixed on the connecting rod bracket, and two fixing clamping plates are hinged side by side on the connecting rod fixing plate. The swing end of the fixed clamping plate is fixed on the connecting rod fixing plate through bolts.

As an optimized solution, the reversing member includes a turntable fixed to the upper end of the connecting rod bracket, and the connecting rod fixing plate is fixed to the upper end of the turntable.

As an optimized solution, the fork head fixing frame includes a fork head fixing plate fixed on the fork head bracket. The fork head fixing plate is circumferentially provided with several fork head limit blocks. , the fork head fixing plate is also hinged with a fork head clamping plate, and the swing end of the fork head clamping plate is fixed to the fork head fixing plate through bolts.

As an optimized solution, the end fixing frame includes an end fixing plate fixed on the end bracket, and two vertical plates are fixed side by side on the end fixing plate. Clamping knobs are also threaded on the board.

As an optimized solution, the limiting mechanism includes a fixed base, a telescopic rod is vertically fixed on the fixed base, a limiting groove is provided at the lower end of the connecting rod bracket, and the telescopic end of the telescopic rod Offset with the limiting groove.

As an optimized solution, the outer ends of the fork bracket and the end bracket are respectively rotatably mounted on a support base, and a driving machine for driving the rotation is fixed on the support base.

As an optimized solution, the traverse member includes a slide rail fixed on the fixed base, and a slide block slidably mounted on the slide rail is fixed on the lower end of the support base.

As an optimized solution, a screw is also mounted on the support base through horizontal rotation of the base, and the slider is threadedly connected to the screw.

Compared with the prior art, the beneficial effects of the present invention are:

When using this device, processing processes such as hole expansion, grinding, welding, and trimming can all be realized on one device, thereby ensuring the consistency of positioning and clamping standards during the processing to the greatest extent, and reducing the cost of Processing errors improve processing accuracy;

Under the condition of ensuring that the manufacturing error is minimized, the process is reasonably arranged so that the processing technology performed first will not have an impact or have a beneficial impact on the processing technology performed later;

This device is used to process each part of the drawbar. Through the rotation of the bracket, the three parts fixed on the three brackets can be in the same plane or different planes, so that the parts do not affect each other or work together when processed individually. Cooperate with each other during processing;

Corresponding fixing brackets are set up for the three parts of the drawbar that need to be processed. The fixing bracket provides the positioning reference and clamping force for workpiece processing;

The rotation drive of the fork bracket and the end bracket is provided by a driver with a stepper motor, which has the characteristics of high control accuracy and good rotation stability;

The rotation control method of the connecting rod bracket is manual control, and the rotation and fixation of the middle drum are controlled by the expansion and contraction of the bottom telescopic rod;

Through the traversing part, the fork bracket and the end bracket are driven to move laterally, so that connecting rods of different lengths can be processed and used;

Improves stability during work; has fewer parts, simple processes, and low failure rate; simple structure, long service life; simple operation and control, easy to manufacture and install on a large scale, and has a wide range of applications.

Description of the drawings

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the specific implementations or the prior art will be briefly introduced below. Throughout the drawings, similar elements or portions are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn to actual scale.

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic diagram of the state structure of step S1 of the present invention;

Figure 3 is a schematic diagram of the state structure of step S2 of the present invention;

Figure 4 is a schematic diagram of the state structure of step S3 of the present invention;

Figure 5 is a schematic diagram of the state structure of step S4 of the present invention;

Figure 6 is a schematic diagram of the state structure of step S5 of the present invention;

Figure 7 is a schematic structural diagram of the drawbar of the present invention.

In the picture: 1-connecting rod bracket; 2-fork bracket; 3-end bracket; 4-fork fixing plate; 5-connecting rod fixing plate; 6-end fixing plate; 7-turntable; 8 -Fixed clamping plate; 9-fork head limit block; 10-fork head clamping plate; 11-vertical plate; 12-clamping knob; 13-guide column; 14-support seat; 15-driver; 16-fixed base ; 17-Telescopic rod; 18-limit slot; 19-slide rail; 20-sliding block; 21-screw; 22-drive motor; 23-connecting rod; 24-fork; 25-end.

Detailed ways

The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and are therefore only examples and cannot be used to limit the scope of the present invention.

As shown in Figures 1 to 7, the horizontal gantry machining center device includes a connecting rod bracket 1 arranged horizontally and a fork bracket 2 and an end bracket 3 located at both ends of the connecting rod bracket 1. The connecting rod bracket The base 1, the fork bracket 2 and the end bracket 3 are arranged to rotate coaxially and independently.

The connecting rod bracket 1 is also provided with a limiting mechanism to prevent it from rotating with the fork bracket 2 or the end bracket 3.

The lateral distance between the fork bracket 2 and the end bracket 3 and the connecting rod bracket 1 is adjusted by a traverse member respectively.

A connecting rod fixing bracket is installed on the connecting rod bracket 1.

The connecting rod bracket 1 is also provided with a reversing piece for adjusting the direction of the connecting rod fixed frame.

The fork head bracket 2 is provided with a fork head holder for fixing the fork head 24 .

The end bracket 3 is provided with an end fixing frame for fastening the end 25 .

The two ends of the connecting rod bracket 1 are coaxially fixed with guide posts 13, and the fork bracket 2 and the end bracket 3 are provided with guide holes that are fitted to the guide posts 13.

The connecting rod fixing frame includes a connecting rod fixing plate 5 fixed on the connecting rod bracket 1. Two fixed clamping plates 8 are hinged side by side on the connecting rod fixing plate 5. The swing ends of the two fixed clamping plates 8 are fixed to the connecting rod bracket 1 by bolts. The connecting rod is fixed on the plate 5.

The reversing member includes a turntable 7 fixed to the upper end of the connecting rod bracket 1 , and the connecting rod fixing plate 5 is fixed to the upper end of the turntable 7 .

The fork head fixing frame includes a fork head fixing plate 4 fixed on the fork head bracket 2. The fork head fixing plate 4 is circumferentially provided with a number of fork head limit blocks 9, and the fork head fixing plate 4 is also hinged There is a fork head clamping plate 10, and the swing end of the fork head clamping plate 10 is fixed on the fork head fixing plate 4 through bolts.

The end fixing frame includes an end fixing plate 6 fixed on the end bracket 3. Two vertical plates 11 are fixed side by side on the end fixing plate 6. The two vertical plates 11 are also threaded with clamping knobs respectively. 12. The two vertical plates are both fixed on the end fixing plate 6. The two vertical plates 11 are threadedly connected with oppositely arranged clamping knobs 12, and the two clamping knobs 12 are used to realize the clamping function.

The limiting mechanism includes a fixed base 16. A telescopic rod 17 is vertically fixed on the fixed base 16. A limiting groove 18 is provided at the lower end of the connecting rod bracket 1. The telescopic end of the telescopic rod 17 offsets the limiting groove 18.

The outer ends of the fork bracket 2 and the end bracket 3 are respectively rotatably mounted on the support base 14, and the support base 14 is also fixedly connected with a driver 15 for driving the rotation.

The traverse member includes a slide rail 19 fixed on the fixed base 16, and a slide block 20 slidably mounted on the slide rail 19 is fixed on the lower end of the support base 14.

A lead screw 21 is also installed on the support base 14 through horizontal rotation of the base body. The slider 20 is threadedly connected to the lead screw 21. A driving motor 22 for driving the lead screw 21 to rotate is also fixed on the support base 14.

The structure of the base body is plate-shaped, and it only plays a supporting role for the screw 21 and a fixing role for the driving motor 22 .

The invention also discloses a processing method for using the device to process the drawbar, which includes the following steps:

S1: The process of expanding the end hole and processing the welding plane of the fork 24 and the end 25;

The specific operation is that the connecting rod bracket 1 fixes the connecting rod 23 and is set upward. The fork bracket 2 and the end bracket 3 fix the fork 24 and the end 25 correspondingly, and rotate in opposite directions respectively to form a processing space. ;

S2: The process of processing the welding end face of connecting rod 23 and expanding the fork head hole;

The specific operation is to use the turntable 7 to rotate the connecting rod 23 by 90° to form a processing space, and process its two ends; and process the fork head 24;

S3: The process of welding connecting rod 23, fork 24 and end 25;

The specific operation is to set the connecting rod 23, the fork 24, and the end 25 coaxially, and perform welding processing on them;

S4: The process of finishing the end face of end 25 and fork 24;

The specific operation is to rotate the processed drawbar 90° to form a processing space, and process the fork head 24 and the end head 25;

S5: The process of trimming connecting rod 23;

The specific operation is to release the limit of the connecting rod bracket 1 by the telescopic rod 17, rotate the connecting rod bracket 1 90°, avoid the processing space of the connecting rod 23, and trim the connecting rod 23.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope, they should be covered by the claims and the scope of the description of the present invention.

Claims (2)

1. A horizontal gantry machining center device, characterized by: including a horizontally parallel connecting rod bracket (1) and a fork bracket (2) and end head located at both ends of the connecting rod bracket (1) Bracket (3), the connecting rod bracket (1), the fork bracket (2) and the end bracket (3) are arranged to rotate coaxially and independently, The connecting rod bracket (1) is also provided with a limiting mechanism to prevent it from rotating with the fork bracket (2) or the end bracket (3). The lateral distance between the fork bracket (2) and the end bracket (3) and the connecting rod bracket (1) is adjusted by a traverse member respectively. The connecting rod bracket (1) is equipped with a connecting rod fixing bracket, the fork bracket (2) is provided with a fork fixing bracket for fixing the fork (24), and the end bracket is (3) is provided with an end fixing bracket for fastening the end (25). The connecting rod bracket (1) is also provided with a reversing piece for adjusting the direction of the connecting rod fixed frame. The two ends of the connecting rod bracket (1) are coaxially fixed with guide posts (13), and the fork bracket (2) and the end bracket (3) have openings that are sleeved on the guide posts (13). ) guide hole, The reversing member includes a turntable (7) fixed to the upper end of the connecting rod bracket (1), and the connecting rod fixing frame is fixed to the upper end of the turntable (7), The limiting mechanism includes a fixed base (16), a telescopic rod (17) is vertically fixed on the fixed base (16), and a limiting slot (18) is provided at the lower end of the connecting rod bracket (1) , the telescopic end of the telescopic rod (17) offsets the limiting groove (18), The outer ends of the fork bracket (2) and the end bracket (3) are respectively rotatably installed on the support base (14), and the support base (14) is also fixedly connected with a driving machine to drive the rotation. (15), The fork head fixing frame includes a fork head fixing plate fixed on the fork head bracket. A number of fork head limit blocks are circumferentially arranged on the fork head fixing plate. The fork head fixing plate is also hinged with a fork head clamping plate. , the swing end of the fork head clamping plate is fixed on the fork head fixed plate through bolts, The end fixing frame includes an end fixing plate fixed on the end bracket. Two vertical plates are fixed side by side on the end fixing plate. The two vertical plates are also threaded with clamping knobs respectively. The two vertical plates They are all fixed on the end fixing plate. The two vertical plates are threaded with oppositely arranged clamping knobs, and the two clamping knobs are used to realize the clamping function. 2. A horizontal gantry machining center device according to claim 1, characterized in that: the traverse member includes a slide rail (19) fixed on the fixed base (16), and the support base The lower end of (14) is fixed with a slider (20) slidably installed on the slide rail (19).