CN221754749U - A synchronous tooling for turning connecting rod - Google Patents

Abstract

The utility model relates to the technical field of crankshaft machining and discloses a connecting rod synchronization tool for a vehicle, which comprises a frame body, and a main shaft box and a tail seat which are respectively arranged at two sides of the frame body, wherein a first rotary table and a second rotary table are respectively arranged on the main shaft box and the tail seat, linkage gears are respectively arranged at the outer sides of the first rotary table and the second rotary table, a linkage shaft is rotatably arranged below the frame body, the central axis of the linkage shaft is parallel to the central axes of the first rotary table and the second rotary table, and the linkage shaft is respectively provided with a first meshing gear and a second meshing gear which are driven by matching transmission with the two linkage gears; the frame body is provided with a strip-shaped through hole, and a supporting mechanism for measuring the position height of a connecting rod installation shaft on the crankshaft is slidably arranged in the strip-shaped through hole. The utility model can conveniently improve the power transmitted from the main shaft box to the first rotating disc in the process of processing the crankshaft, can improve the processing efficiency of the crankshaft and can avoid a large number of defective products.

Description

A synchronous tooling for turning connecting rod

Technical Field

The utility model relates to the technical field of crankshaft processing, in particular to a synchronous tooling for turning connecting rods.

Background Art

The lathe for processing automobile crankshafts usually includes a bed, a spindle box, a tailstock, a first turntable and a second turntable. The tailstock can move back and forth on the bed, the spindle box is used to rotate the crankshaft, and the first turntable and the second turntable are used to clamp the crankshaft. When processing the connecting rod position of the crankshaft for installing the connecting rod, the rotation speed of the spindle box cannot be too fast. Due to the large mass of the crankshaft and the large torque at one end of the spindle box, the multiple connecting rods spaced apart from each other may not be in a straight line, making the scrap rate of the production extremely high. In order to improve the yield rate of the crankshaft, only a lower spindle speed can be used, but the production efficiency of this processing is not high.

Utility Model Content

The purpose of the utility model is to provide a synchronous tooling for turning connecting rods to solve the problem proposed in the above-mentioned background technology that when processing the connecting rod position of the crankshaft for installing the connecting rod, the rotation speed of the spindle box cannot be too fast. Since the crankshaft has a large mass and one end of the spindle box is subjected to a large torque, the multiple connecting rods spaced apart from each other may not be in a straight line, resulting in an extremely high scrap rate. In order to improve the yield rate of the crankshaft, only a lower spindle speed can be used, but the production efficiency of this processing is not high.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synchronous tooling for turning connecting rods, comprising a frame body and a spindle box and a tailstock respectively arranged on both sides of the frame body, wherein the spindle box and the tailstock are respectively provided with a first turntable and a second turntable, and the outer sides of the first turntable and the second turntable are both provided with linkage gears, and a linkage shaft is rotatably arranged below the frame body, and the central axis of the linkage shaft is parallel to the central axis of the first turntable and the second turntable, and the linkage shaft is respectively provided with a first meshing gear and a second meshing gear for cooperating with two linkage gears to drive;

The frame body is provided with a strip-shaped through hole, and a supporting mechanism for measuring the position height of the connecting rod mounting shaft on the crankshaft is slidably arranged inside the strip-shaped through hole.

Furthermore, the support mechanism includes a base slidably mounted on the frame, the base is provided with a threaded rod, a lifting sleeve is threadedly mounted on the threaded rod, and a support rod for clamping the bottom of multiple connecting rods axially of the crankshaft is provided on one side of the lifting sleeve.

Furthermore, a support groove is provided on the support rod, and a center axis of the support groove coincides with a plurality of axial connecting rods of the crankshaft.

Furthermore, a threaded sleeve is rotatably mounted on the bottom of the lifting sleeve, and the threaded sleeve is threadedly connected to the threaded rod.

Furthermore, a slide groove is provided on the threaded rod, and a sliding block is provided on the inner wall of the lifting sleeve. When the lifting sleeve is installed on the outer side of the threaded rod, the sliding block slides inside the slide groove.

Furthermore, the top view projection shape of the slider is T-shaped.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model arranges a linkage shaft below the frame, and the linkage shaft directly transmits the power on the main spindle box of the machine tool to the second turntable on the tailstock, so that the first turntable and the second turntable can rotate synchronously, reducing the torque difference between the two ends of the crankshaft to be processed. During the processing of the crankshaft, the power transmitted from the main spindle box to the first turntable can be conveniently increased, and the processing efficiency of the crankshaft can be improved while avoiding the occurrence of a large number of defective products.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a synchronous tooling for a car connecting rod according to the present invention;

FIG2 is a side view of a synchronous tooling for a car connecting rod according to the present invention;

FIG3 is a schematic diagram of the overall structure of a supporting mechanism of a car connecting rod synchronization tooling of the utility model;

FIG. 4 is an exploded view of a supporting mechanism of a synchronous tooling for a car connecting rod according to the present invention.

In the figure: 1, frame; 101, strip through hole; 2, spindle box; 3, first turntable; 31, linkage gear; 4, second turntable; 5, linkage shaft; 51, first meshing gear; 52, second meshing gear; 6, supporting mechanism; 601, slide groove; 61, threaded rod; 62, lifting sleeve; 63, threaded sleeve; 64, support rod; 6401, support groove; 65, slider; 66, base; 7, tailstock.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Please refer to Figures 1 to 4. The utility model provides a technical solution: a synchronous tooling for turning connecting rods, including a frame body 1 and a spindle box 2 and a tailstock 7 respectively arranged on both sides of the frame body 1, the spindle box 2 and the tailstock 7 are respectively provided with a first turntable 3 and a second turntable 4, the outer sides of the first turntable 3 and the second turntable 4 are provided with a linkage gear 31, a linkage shaft 5 is rotatably arranged at the bottom of the frame body 1, the central axis of the linkage shaft 5 is parallel to the central axis of the first turntable 3 and the second turntable 4, and the linkage shaft 5 is respectively provided with a first meshing gear 51 and a second meshing gear 52 for driving in cooperation with the two linkage gears 31; since the linkage shaft 5 is arranged at the bottom of the frame body 1, during the process of machining the crankshaft, the tool can be conveniently cut from both sides of the crankshaft without obstructing the tool. In addition, the two linkage gears 31 only drive the first turntable 3 and the second turntable 4 to rotate, and when the first turntable 3 and the second turntable 4 move axially, the two linkage gears 31 slide with the first turntable 3 and the second turntable 4 respectively.

The frame body 1 is provided with a strip-shaped through hole 101 , and a support mechanism 6 for measuring the position height of the connecting rod mounting shaft on the crankshaft is slidably arranged inside the strip-shaped through hole 101 .

The utility model sets a linkage shaft 5 under the frame 1, and the linkage shaft 5 directly transmits the power on the main spindle box 2 of the machine tool to the second turntable 4 on the tailstock 7, so that the first turntable 3 and the second turntable 4 can rotate synchronously, reducing the torque difference between the two ends of the crankshaft to be processed. In the process of processing the crankshaft, the power transmitted from the main spindle box 2 to the first turntable 3 can be conveniently increased, which can improve the processing efficiency of the crankshaft and avoid a large number of defective products.

Furthermore, the support mechanism 6 includes a base 66 slidably mounted on the frame 1, a threaded rod 61 is provided on the base 66, a lifting sleeve 62 is threadedly mounted on the threaded rod 61, and a support rod 64 for clamping the bottom of multiple connecting rods axially of the crankshaft is provided on one side of the lifting sleeve 62.

Furthermore, a support groove 6401 is provided on the support rod 64, and the central axis of the support groove 6401 coincides with a plurality of axial connecting rods of the crankshaft.

Furthermore, a threaded sleeve 63 is rotatably mounted on the bottom of the lifting sleeve 62 , and the threaded sleeve 63 is threadedly connected to the threaded rod 61 .

Furthermore, a slide groove 601 is provided on the threaded rod 61 , and a slider 65 is provided on the inner wall of the lifting sleeve 62 . When the lifting sleeve 62 is installed on the outer side of the threaded rod 61 , the slider 65 slides inside the slide groove 601 .

Furthermore, the top view projection shape of the slider 65 is T-shaped.

Working principle: By setting up the supporting mechanism 6, when processing the connecting rod on the crankshaft, the height of the connecting rod at different positions can be conveniently detected, and it can be determined whether multiple connecting rods on the same axis are at the same height. The side surface of the threaded rod 61 is provided with a scale for displaying the height of the lifting sleeve 62, and the position of the connecting rod is determined by reading the reading on the scale.

Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims (6)

1. The utility model provides a synchronous frock of car connecting rod, includes support body (1) and headstock (2) and tailstock (7) that set up respectively in support body (1) both sides, be provided with first carousel (3) and second carousel (4) on headstock (2) and tailstock (7) respectively, a serial communication port, the outside of first carousel (3) and second carousel (4) all is provided with linkage gear (31), the below rotation of support body (1) is provided with universal driving shaft (5), the axis of universal driving shaft (5) is parallel with the axis of first carousel (3) and second carousel (4), be provided with on universal driving shaft (5) respectively and be used for driving first meshing gear (51) and second meshing gear (52) with two cooperation gears (31) cooperation transmission;

the novel crankshaft connecting rod measuring device is characterized in that a strip-shaped through hole (101) is formed in the frame body (1), and a supporting mechanism (6) for measuring the position height of a connecting rod installation shaft on the crankshaft is arranged in the strip-shaped through hole (101) in a sliding mode.

2. The vehicle connecting rod synchronization tool according to claim 1, wherein the supporting mechanism (6) comprises a base (66) slidably mounted on the frame body (1), a threaded rod (61) is arranged on the base (66), a lifting sleeve (62) is mounted on the threaded rod (61) in a threaded fit manner, and a supporting rod (64) for clamping the bottoms of a plurality of connecting rods in the axial direction of the crankshaft is arranged on one side of the lifting sleeve (62).

3. The vehicle connecting rod synchronization tool according to claim 2, wherein the supporting rod (64) is provided with a supporting groove (6401), and the central axis of the supporting groove (6401) coincides with a plurality of connecting rods in the axial direction of the crankshaft.

4. A tool for synchronizing connecting rods of vehicles according to claim 3, characterized in that a threaded sleeve (63) is rotatably mounted at the bottom of the lifting sleeve (62), and the threaded sleeve (63) is in threaded connection with a threaded rod (61).

5. The vehicle connecting rod synchronization tool according to claim 4, wherein a sliding groove (601) is formed in the threaded rod (61), a sliding block (65) is arranged on the inner wall of the lifting sleeve (62), and the sliding block (65) is located in the sliding groove (601) to slide when the lifting sleeve (62) is installed on the outer side of the threaded rod (61).

6. The vehicle connecting rod synchronization tool according to claim 5, wherein the top view projection shape of the slider (65) is T-shaped.