High-precision positioning device of engine connecting rod

Abstract

The utility model provides a high-precision positioning device of an engine connecting rod, which comprises a support, a plurality of uniformly distributed supporting legs are arranged on the lower surface of the support, a workbench is arranged on the upper surface of the support, and two symmetrically distributed positioning tables are rotatably arranged on the upper surface of the workbench through a rotating shaft. Four uniformly-distributed guide sliding grooves are formed in the upper surface of the positioning table, sliding seats are arranged in the guide sliding grooves in a sliding mode, positioning clamping plates are arranged on the upper sides of the sliding seats, a placing seat is arranged in the middle of the upper surface of the positioning table, and an electric control unit used for driving the positioning clamping plates to move is further arranged on the positioning table. According to the high-precision positioning device for the engine connecting rods, the engine connecting rods of different models on the placing seat can be quickly positioned and clamped from four directions, so that the engine connecting rods of different models can be effectively and quickly clamped, and the positioning precision and stability can be ensured at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing, in particular to a high-precision positioning device for an engine connecting rod. Background Art

[0002] As a key component of the crank-connecting rod mechanism of internal combustion engines (such as automobiles, ships, and aircraft engines), the engine connecting rod is responsible for converting the reciprocating linear motion of the piston into the rotational motion of the crankshaft. Therefore, in the processing of the engine connecting rod, a high-precision positioning device is required to position the engine connecting rod to ensure the processing accuracy.

[0003] The existing high-precision positioning device for engine connecting rods places the engine connecting rod to be processed at a specified position, and then drives the clamping and positioning module to operate, so that the clamping and positioning module on the high-precision positioning device drives a specific clamping block close to the engine connecting rod to achieve stable high-precision positioning and clamping. However, in actual use, due to the different specifications and sizes of different engine connecting rods, when performing high-precision positioning on different engine connecting rods, personnel are required to manually replace clamping blocks of different models, which is time-consuming and labor-intensive. Utility Model Content

[0004] In view of this, the utility model addresses the deficiencies of the existing technology and provides a high-precision positioning device for engine connecting rods, which can quickly position and clamp engine connecting rods of different models on the placement seat from four directions, effectively ensuring the rapid clamping of engine connecting rods of different models while ensuring the precise and stable positioning.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-precision positioning device for the engine connecting rod, including a bracket, a plurality of evenly distributed support legs are provided on the lower surface of the bracket, a workbench is provided on the upper surface of the bracket, and two symmetrically distributed positioning platforms are provided on the upper surface of the workbench through the rotation of the rotating shaft, and the upper surface of the positioning platform is provided with four evenly distributed guide grooves, and the interior of the guide groove is provided with a sliding seat for sliding, and a positioning splint is provided on the upper side of the sliding seat, and a placement seat is provided in the middle of the upper surface of the positioning platform, and the positioning platform is also provided with an electronic control unit for driving the positioning splint to move; two left-right symmetrically distributed drive motors are provided inside the workbench, and the output shafts of the drive motors are fixed to adjacent rotating shafts by couplings.

[0006] As a further improvement of the present invention, the electronic control unit includes guide rails symmetrically arranged inside each positioning platform, two symmetrically distributed adjustment seats are slidably arranged between two vertically adjacent guide rails, slide cylinders are provided on the front and rear sides of the adjustment seat, and slide columns are slidably arranged inside the slide cylinders, and the ends of the slide columns away from the slide cylinders are respectively connected and fixed to the adjacent sliding seats by bolts, and the positioning platform is also provided with an electronic control component for driving the adjustment seat to move; return springs are respectively provided between the adjustment seat and the adjacent sliding seats, and the return springs are both sleeved on the outside of the whole composed of the slide cylinder and the slide column; the electronic control component includes a bidirectional screw rod rotatably arranged in the middle of each positioning platform, the adjustment seat is fixed to the adjacent bidirectional screw rods by couplings, and a drive motor 2 is provided on the right side of the positioning platform, and the output shafts of the drive motor 2 are respectively fixed to the adjacent bidirectional screw rods by couplings.

[0007] As a further improvement of the present invention, a control switch is provided on the front side of the workbench, and the drive motor 1 and the drive motor 2 are both electrically connected to the control switch.

[0008] As a further improvement of the present invention, a rubber plate is provided on one side of the positioning splint close to the adjacent placement seat.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] First, the engine connecting rods that need to be positioned are placed on the placement seats respectively, and then the operation of the drive motors 2 on the left and right sides is controlled by the control switch, driving the four sliding seats inside the same positioning platform to synchronously approach the placement seats inside their respective guide grooves, and quickly position and clamp the engine connecting rods of different models on the placement seats from four directions.

[0011] Secondly, the threaded relationship between the bidirectional screw and the adjustment seat drives the two adjustment seats located inside the same positioning platform to move closer to each other. The adjustment seat drives the sliding seat to slide inside the guide slide through the cooperation of the slide cylinder and the slide column, and then drives the four sliding seats inside the same positioning platform to synchronously approach the placement seat inside their respective guide slides. Through the cooperation of the bidirectional screw, adjustment seat, slide cylinder and slide column, it can effectively ensure rapid clamping while ensuring accurate and stable positioning.

[0012] Third, the control switch regulates the operation of the driving motor 1, thereby causing the driving motor 1 to drive the positioning platform to rotate through the rotating shaft, thereby quickly controlling the rotation of the engine connecting rod.

[0013] Fourthly, the positioning splint and the engine connecting rod can be flexibly clamped by the rubber plate, which can effectively avoid wear of the engine connecting rod caused by rigid contact during the high-precision positioning of the engine connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0018] Figure 4 It is a schematic diagram of the internal planar structure of the present utility model.

[0019] In the figure: 101, bracket; 102, support leg; 103, workbench; 104, positioning table; 105, guide slide; 106, placement seat; 107, sliding seat; 108, positioning splint; 109, rubber sheet; 110, drive motor 1; 201, guide rail; 202, adjustment seat; 203, slide cylinder; 204, slide column; 205, return spring; 206, bidirectional screw rod; 207, drive motor 2; 301, control switch. DETAILED DESCRIPTION

[0020] To better understand the present invention, the following examples further illustrate the present invention. However, the present invention is not limited to the following examples. In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be practiced without one or more of these details.

[0021] like Figure 1 、 2 As shown in Figure 4, the high-precision positioning device of the engine connecting rod includes a bracket 101, the lower surface of the bracket 101 is provided with a plurality of evenly distributed supporting legs 102, the upper surface of the bracket 101 is provided with a workbench 103, the upper surface of the workbench 103 is provided with two symmetrically distributed positioning platforms 104 through the rotation of a rotating shaft, the upper surface of the positioning platforms 104 are provided with four evenly distributed guide grooves 105, the inside of the guide grooves 105 are slidably provided with sliding seats 107, the upper side of the sliding seats 107 are provided with positioning splints 108, the middle part of the upper surface of the positioning platform 104 is provided with a placement seat 106, and the positioning platform 104 is also provided with an electronic control unit for driving the positioning splint 108 to move.

[0022] like Figure 4 As shown, two driving motors 110 symmetrically distributed on the left and right are provided inside the workbench 103 , and the output shafts of the driving motors 110 are fixed to the adjacent rotating shafts via couplings.

[0023] like Figure 2 、 3 4, the electronic control unit includes a guide rail 201 symmetrically arranged inside each positioning platform 104, two symmetrically distributed adjustment seats 202 are slidably arranged between two vertically adjacent guide rails 201, and slide cylinders 203 are provided on the front and rear sides of the adjustment seat 202. Slide cylinders 203 are slidably arranged inside the slide cylinders 203. Slide columns 204 are slidably arranged inside the slide cylinders 203. The ends of the slide columns 204 away from the slide cylinders 203 are respectively fixed to the adjacent sliding seats 107 by bolts. The positioning platform 104 is also provided with an electronic control component for driving the adjustment seat 202 to move; the adjustment seat A return spring 205 is respectively provided between 202 and the adjacent sliding seat 107, and the return spring 205 is all sleeved on the outside of the slide cylinder 203 and the slide column 204 as a whole; the electronic control component includes a bidirectional screw rod 206 rotatably arranged in the middle of each positioning platform 104, and the adjustment seat 202 is respectively fixed to the adjacent bidirectional screw rod 206 through a coupling, and a drive motor 207 is provided on the right side of the positioning platform 104, and the output shaft of the drive motor 207 is respectively fixed to the adjacent bidirectional screw rod 206 through a coupling.

[0024] like Figure 1 、 2 As shown in FIG. 4 , a control switch 301 is provided on the front side of the workbench 103 , and the drive motor 1 110 and the drive motor 2 207 are both electrically connected to the control switch 301 .

[0025] When the engine connecting rod needs to be processed, the personnel will place the engine connecting rod that needs to be positioned on the placement seat 106 respectively, and then adjust the operation of the drive motor 207 on the left and right sides through the control switch 301, so that the output shaft of the drive motor 207 respectively drives the two-way screw rod 206 connected thereto to rotate, and drives the two adjustment seats 202 located inside the same positioning platform 104 to move toward each other through the threaded relationship between the two-way screw rod 206 and the adjustment seat 202. In the process of the two adjustment seats 202 inside the same positioning platform 104 moving toward each other, the adjustment seat 202 drives the sliding seat 107 to slide inside the guide slot 105 through the cooperation of the slide cylinder 203 and the slide column 204. At this time, the slide column 204 moves toward the slide cylinder. The internal sliding and return spring 205 of 203 is compressed, which drives the four sliding seats 107 inside the same positioning platform 104 to synchronously approach the placement seat 106 inside their respective guide slots 105, and quickly and accurately position and clamp the engine connecting rod on the placement seat 106 from four directions. Through the cooperation of the two-way screw 206, the adjustment seat 202, the slide cylinder 203 and the slide column 204, the precise stability of the clamping can be effectively guaranteed; during the processing process, when it is necessary to control the rotation of the engine connecting rod on the placement seat 106, the control switch 301 controls the operation of the drive motor 110, and then the drive motor 110 drives the positioning platform 104 to rotate through the rotating shaft, and then the rotation of the engine connecting rod can be quickly controlled.

[0026] According to another embodiment of the present invention, Figure 1 、 2 As shown, a rubber plate 109 is provided on one side of the positioning clamping plate 108 near the adjacent placement seat 106. During the high-precision positioning of the engine connecting rod, the rubber plate 109 can make the positioning clamping plate 108 and the engine connecting rod flexibly clamped, thereby effectively avoiding wear of the engine connecting rod caused by rigid contact.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A high-precision positioning device for an engine connecting rod, comprising a bracket (101), characterized in that: The lower surface of the bracket (101) is provided with a plurality of evenly distributed supporting legs (102), the upper surface of the bracket (101) is provided with a workbench (103), the upper surface of the workbench (103) is provided with two symmetrically distributed positioning platforms (104) through the rotation of a rotating shaft, the upper surface of the positioning platforms (104) is provided with four evenly distributed guide slots (105), the interior of the guide slots (105) is slidably provided with a sliding seat (107), the upper side of the sliding seat (107) is provided with a positioning clamping plate (108), a placement seat (106) is provided in the middle of the upper surface of the positioning platform (104), and the positioning platform (104) is also provided with an electric control unit for driving the positioning clamping plate (108) to move.

2. The high-precision positioning device for an engine connecting rod according to claim 1, characterized in that: Two driving motors (110) symmetrically distributed on the left and right are arranged inside the workbench (103), and the output shafts of the driving motors (110) are fixed to the adjacent rotating shafts via couplings.

3. The high-precision positioning device for an engine connecting rod according to claim 2, characterized in that: The electronic control unit includes a guide rail (201) symmetrically arranged inside each positioning platform (104), two symmetrically distributed adjustment seats (202) are slidably arranged between two vertically adjacent guide rails (201), a slide cylinder (203) is provided on the front and rear sides of the adjustment seat (202), a slide column (204) is slidably arranged inside the slide cylinder (203), and one end of the slide column (204) away from the slide cylinder (203) is respectively fixed to the adjacent sliding seat (107) by bolt connection, and the positioning platform (104) is also provided with an electronic control component for driving the adjustment seat (202) to move.

4. The high-precision positioning device for an engine connecting rod according to claim 3, characterized in that: A return spring (205) is respectively provided between the adjustment seat (202) and the adjacent sliding seat (107), and the return spring (205) is sleeved on the outer side of the integral body formed by the slide cylinder (203) and the slide column (204).

5. The high-precision positioning device for an engine connecting rod according to claim 3, characterized in that: The electric control component includes a bidirectional screw rod (206) rotatably arranged in the middle of each positioning platform (104), the adjustment seat (202) is fixed to the adjacent bidirectional screw rods (206) through a coupling, and a second drive motor (207) is arranged on the right side of the positioning platform (104), and the output shaft of the second drive motor (207) is fixed to the adjacent bidirectional screw rods (206) through a coupling.

6. The high-precision positioning device for an engine connecting rod according to claim 5, characterized in that: A control switch (301) is provided on the front side of the workbench (103), and the first drive motor (110) and the second drive motor (207) are both electrically connected to the control switch (301).

7. The high-precision positioning device for an engine connecting rod according to claim 1, characterized in that: A rubber plate (109) is provided on one side of the positioning clamping plate (108) close to the adjacent placement seat (106).

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