Device for machining lug hole of universal joint fork head

Abstract

The utility model discloses a device for processing a universal joint fork head lug hole, which comprises a lathe main body and a sliding rail, a transmission base is arranged at the top of the sliding rail in a sliding driving manner, a fixed seat is fixedly connected to the top of the transmission base, an oil cylinder is connected to the top of the fixed seat, a pressing plate is connected to the power end of the bottom of the oil cylinder, and a clamping groove is formed in the bottom of the pressing plate. A main shaft of the lathe main body is connected with a cutter handle, and the front end of the cutter handle is symmetrically connected with boring cutter bars. Compared with the prior art, the universal joint fork head machining device has the advantages that a lathe is matched with a set of machining device, the universal joint fork head is clamped once, machining of two lug holes can be completed, labor intensity can be lowered, machining efficiency of products is improved, machining sizes meet precision requirements, and machining efficiency is improved. Therefore, the assembly quality of the cross universal joint coupling is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of SWC universal joints, in particular to a device for processing ear holes of a universal joint fork. Background Art

[0002] SWC cross-shaft universal couplings are widely used in the shafting of mechanical equipment in the metallurgical industry, lifting and hoisting, coal, papermaking machinery, etc. to transmit torque. They have large angle compensation capabilities, large load-bearing capacity, transmission efficiency of 98-99.8%, low noise, easy maintenance, and have good development prospects in the market.

[0003] However, the following shortcomings or deficiencies emerged during the machining process: The approximately 60kg machining tooling was mounted on the chuck. Due to the excessive weight during machining, the inner hole became elliptical, causing the two ears of the universal joint yoke to be non-concentric. The use of welding tools requires high technical skills from the workers, and tool sharpening techniques require long-term accumulation of experience. After machining the ear hole on one side of the yoke, the workpiece needs to be turned over before machining the ear hole on the other side. This multiple clamping process not only reduces production efficiency, but also fails to fully guarantee the coaxiality and machining accuracy of the two ears of the yoke. It is particularly important to solve the concentricity and precision issues of the two ears of the universal joint yoke after machining. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a device for processing ear holes of a universal joint fork head, which can reduce labor intensity and improve product processing efficiency, in view of the deficiencies raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a device for processing ear holes of a universal joint fork, comprising a lathe body and a slide rail, wherein the top of the slide rail is provided with a transmission base for sliding drive, the top of the transmission base is fixedly connected with a fixed seat, the top of the fixed seat is connected with an oil cylinder, and the bottom power end of the oil cylinder is connected with a pressure plate;

[0006] A tool handle is connected to the main shaft of the lathe body, and a boring tool rod is symmetrically connected to the front end of the tool handle.

[0007] Furthermore, the fixing seat and the transmission base are fixed by a bolt key bar structure, and the keyway center line of the bolt key bar structure is arranged to be consistent with the center of the main shaft of the lathe body.

[0008] Furthermore, a variable frequency motor screw rod structure for driving the transmission base to move is connected to the rear side of the slide rail.

[0009] The advantages of the device for processing ear holes of a universal joint fork head of the utility model over the prior art are that: the utility model uses a lathe in combination with a set of processing devices, and can complete the processing of two ear holes by clamping the universal joint fork head once, which can reduce labor intensity, improve product processing efficiency, and the processing dimensions meet the precision requirements, thereby ensuring the assembly quality of the cross universal joint coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a structural schematic diagram of a device for processing ear holes of a universal joint fork.

[0011] As shown in the figure: 1. Lathe body; 2. Tool handle; 3. Boring tool bar; 4. Fixed seat; 5. Bolt key structure; 6. Transmission base; 7. Slide rail; 8. Frequency conversion motor screw structure; 9. Pressure plate; 10. Cylinder. DETAILED DESCRIPTION

[0012] The present invention will be described in further detail below with reference to the accompanying drawings.

[0013] Combined with attachment Figure 1 A device for processing ear holes of universal joint forks includes a lathe body 1 and a slide rail 7. The top of the slide rail 7 is provided with a transmission base 6 for sliding drive. The top of the transmission base 6 is fixedly connected with a fixed base 4. The top of the fixed base 4 is connected with an oil cylinder 10. The bottom power end of the oil cylinder 10 is connected with a pressure plate 9.

[0014] The main shaft of the lathe body 1 is connected to a tool handle 2, and the front end of the tool handle 2 is symmetrically connected to a boring tool rod 3.

[0015] The fixing seat 4 and the transmission base 6 are fixed by a bolt key structure 5 , and the keyway center line of the bolt key structure 5 is arranged to be consistent with the center of the main shaft of the lathe body 1 .

[0016] The rear side of the slide rail 7 is connected to a variable frequency motor screw rod structure 8 for driving the transmission base 6 to move.

[0017] In the specific implementation of the utility model, the first step is to select a lathe body 1, install the tool handle 2 in the spindle hole of the lathe body 1, and install two boring tool rods 3 on the tool handle 2. The boring process of an ear hole can be completed with one feed. The machine-clamped tool is used, and there is no need for sharpening. It only needs to be replaced regularly.

[0018] The second step is to fix the fixed seat 4 and the transmission base 6 with key bars and bolts, and the center line of the keyway is consistent with the center of the main shaft;

[0019] The third step is to place the reference surface of the universal joint flange fork in the positioning slot on the upper part of the fixing seat 4. The bottom of the slot is at the same height from the main axis as from the center of the flange fork ear hole. This ensures the center dimension from the end face of the universal joint fork to the ear hole.

[0020] In the fourth step, a pressure plate 9 is used to stick to the upper part of the two ears of the universal joint fork, and the universal joint is tightened with a 10T oil cylinder 10. The hydraulic clamping mechanism replaces the manual tightening work, which reduces the labor intensity. Finally, a variable frequency motor screw structure 8 is used to drive the transmission base 6 to perform feed motion on the slide rail 7 through the screw transmission, and it can move quickly in the idling stroke, reducing the processing time and improving the processing efficiency.

[0021] Through implementation, the transformed processing equipment has the following advantages:

[0022] (1) The processing of the two ear holes of the fork head can be completed through one clamping, which reduces the time of turning the workpiece and improves the processing efficiency.

[0023] (2) It eliminates the positioning and alignment errors between multiple processing steps, ensures the coaxiality and processing accuracy of the two ear holes of the fork head, and ensures the assembly quality of the cross-axis universal joint.

[0024] (3) The use of oil cylinder as the power mechanism for clamping reduces labor intensity.

[0025] (4) Use machine-clamped tools, which do not require sharpening and can be replaced regularly.

[0026] (5) A variable frequency motor is used to drive the transmission base to perform feed motion through a screw drive, and it can move quickly in the idling stroke, reducing processing time and improving processing efficiency.

[0027] After implementation, each person can process 40 universal joint fork ear holes per shift, which is twice the original processing method. It effectively improves the processing efficiency of universal joint forks, reduces labor intensity, saves costs, and ensures processing accuracy.

[0028] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A device for machining a universal joint fork ear hole, comprising a lathe body (1) and a slide rail (7), characterized in that: The top of the slide rail (7) is driven by a transmission base (6), the top of the transmission base (6) is fixedly connected to a fixed seat (4), the top of the fixed seat (4) is connected to an oil cylinder (10), and the bottom power end of the oil cylinder (10) is connected to a pressure plate (9); The main shaft of the lathe body (1) is connected to a tool handle (2), and the front end of the tool handle (2) is symmetrically connected to a boring tool rod (3).

2. The device for machining a universal joint fork ear hole according to claim 1, characterized in that: The fixing seat (4) and the transmission base (6) are fixed by a bolt key structure (5), and the keyway center line of the bolt key structure (5) is arranged to be consistent with the main shaft center of the lathe body (1).

3. The device for machining a universal joint fork ear hole according to claim 1, characterized in that: The rear side of the slide rail (7) is connected to a variable frequency motor screw rod structure (8) for driving the transmission base (6) to move.

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