Double-station special-shaped speed reduction pump cover drilling and milling integrated clamp

Abstract

The utility model belongs to tools of machining equipment, and particularly relates to a double-station drilling and milling integrated clamp for a pump cover of a special-shaped speed reduction pump. Two sets of clamps with the same structure are arranged above the bottom plate of the first station front and back in parallel, profiling mistake-proof blocks are arranged on the bottom plate on the periphery of the first-order supporting block left and right, and an elastic supporting column is arranged on the bottom plate on the left side of the profiling mistake-proof blocks; two third-order vertical plates perpendicular to the bottom plate are fixed to the front portion and the rear portion of the edge of the right side of the bottom plate at the third station, a third-order centering mandrel is arranged at the center of a third-order supporting sleeve, three third-order mistake-proof rods are arranged on the periphery of the third-order supporting sleeve at equal intervals of 120 degrees, and a third-order limiting nail is arranged between two of the three-order mistake-proof rods; hydraulic corner cylinders are fixed to the positions, on the two third-order vertical plates, of the rear sides of the third-order supporting sleeves, a first oil port and a second oil port are formed in the upper end faces of the two third-order vertical plates respectively, and four hanging rings are fixed to the four corners of the bottom plate. And the previous manual pressing is changed into hydraulic automatic pressing, so that the use number of machine tools is reduced, and the clamping frequency is reduced.

Description

Technical Field

[0001] This utility model pertains to tooling for machining equipment, and specifically relates to a dual-station, irregularly shaped decelerator pump cover drilling and milling integrated fixture. Background Technology

[0002] Gear reducers are a crucial component in automobiles. With the rapid development of the automotive industry, the demand for gear reducers has increased significantly, and the quality requirements for the pump housing and cover are also high. In the early days, the processing of gear reducer pump covers involved manual clamping, with one fixture per process. A single production line required three machining centers, two operators, and multiple clamping operations to complete the entire process. This reliance on multiple machine tools and operators, along with the numerous clamping operations, resulted in high processing costs, low production efficiency, and difficulty in guaranteeing product quality. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the above-mentioned technology and provide a dual-station irregular-shaped deceleration pump cover drilling and milling integrated fixture with simple structure, high degree of automation and guaranteed quality.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: A dual-station, irregularly shaped decelerator pump cover drilling and milling integrated fixture includes a base plate, a first station, a second station, and a third station. Its characteristic is that two sets of fixtures with identical structures are mounted side-by-side above the base plate of the first station. Each fixture has a sequential support block fixed on the base plate, a sequential centering mandrel positioned above the centering mandrel, and sequential limiting caps positioned around the mandrel. A hydraulic lever cylinder is symmetrically positioned around the first support block, and a lever cylinder pressure plate is positioned above the hydraulic lever cylinder. Contouring anti-misalignment blocks are positioned on the left and right sides of the base plate around the first support block, and an elastic support column is positioned on the left side of the base plate of the contouring anti-misalignment block. A reference sleeve is positioned in the middle of the base plate adjacent to the first station at the second station. Second-order pads with identical structures are positioned at the second station. A second-order centering mandrel is installed at the center of the upper part of the second-order pad block. Second-order support and limiting columns are symmetrically arranged around the second-order centering mandrel. Second-order support columns are arranged parallel to the second-order support and limiting columns. Second-order anti-misalignment rods are arranged symmetrically adjacent to the second-order support columns. At the third work station, i.e., at the right edge of the base plate, two third-order upright plates perpendicular to the base plate are fixed front and back. A third-order support sleeve is fixed on the right side of the left side of the two third-order upright plates. A third-order centering mandrel is installed at the center of the third-order support sleeve. Three third-order anti-misalignment rods are evenly spaced at 120 degrees around the periphery of the third-order support sleeve. A third-order limiting nail is installed between two of the three-order anti-misalignment rods. A hydraulic angle cylinder is fixed on the two third-order upright plates and the rear side of the third-order support sleeve. An angle cylinder pressure plate is installed above the hydraulic angle cylinder. Oil port one and oil port two are respectively installed on the upper surface of the two third-order upright plates. Four lifting rings are fixed on the four corners of the base plate.

[0005] The beneficial effects of this utility model are: the dual-station irregular-shaped deceleration pump cover drilling and milling integrated fixture has changed from manual clamping to hydraulic automatic clamping, saving manpower and time. It has changed from one fixture per process to one fixture for multiple processes, reducing the number of machine tools used, reducing the number of clamping times, reducing collisions caused by clamping, ensuring the machining accuracy of the workpiece, improving production efficiency, and reducing production costs. Attached Figure Description

[0006] The following description, in conjunction with the accompanying drawings, illustrates specific embodiments.

[0007] Figure 1 This is a structural diagram of a dual-station irregular-shaped decelerator pump cover drilling and milling integrated fixture.

[0008] Figure 2 yes Figure 1 Structure diagram of surface B of the workpiece.

[0009] Figure 3 This is a structural diagram of surface A of the workpiece in the figure.

[0010] In the diagram: 1 - Base plate; 1-1 - First station; 1-2 - Second station; 1-3 - Third station; 2 - Reference sleeve; 3 - Lifting ring; 4 - Third-stage upright plate; 4-1 - Oil port one; 4-2 - Oil port two; 5 - Contouring anti-misalignment block; 6 - First-stage support block; 7 - Hydraulic lever cylinder one; 8 - First-stage centering mandrel; 9 - First-stage limit cap; 10 - Elastic support column; 11 - Lever cylinder pressure plate one; 12 - Second-stage pad block; 13 - Second-stage support limit column; 14 - Second-stage support limit column; 15-Second-sequence support column; 16-Second-sequence anti-misalignment rod; 17-Second-sequence centering mandrel; 18-Angle cylinder; 19-Third-sequence centering mandrel; 20-Third-sequence limit pin; 21-Third-sequence anti-misalignment rod; 22-Third-sequence support sleeve; 23-Lever cylinder pressure plate II; 24-Hydraulic lever cylinder II; 25-Workpiece; 25-1-Second-sequence centering hole; 25-2-Second and third-sequence connecting hole; 25-3-First and third-sequence centering hole; 25-4-Inner cavity. Detailed Implementation

[0011] Examples and references Figure 1The dual-station irregular-shaped reducer pump cover drilling and milling integrated fixture has a first station 1-1 located on the upper left side of the base plate 1, a second station 1-2 located above the middle of the base plate 1, and a third station 1-3 located on the upper right side of the base plate 1. Two parallel three-stage vertical plates 4 are fixed to the base plate 1 at the third station 1-3. Two identical fixtures are fixed to the base plate 1 at the first station 1-1. The fixture at the first station 1-1 has two parallel first-stage support blocks 6 fixed to the base plate 1. A first-stage centering mandrel 8 is located above the center of the first-stage support block 6, and a first-stage limiting cap 9 is located around the first-stage centering mandrel 8. A contouring anti-misalignment block 5 is fixed to the base plate 1 on the left side of the first-stage support block 6, and an elastic support column 10 is fixed to the base plate 1 on the rear side of the contouring anti-misalignment block 5. Hydraulic lever cylinders 7 are fixed to the base plate 1 on both the front and rear sides of the first-stage support block 6, and a lever cylinder pressure plate 11 is located above the hydraulic lever cylinders 7. A reference sleeve 2 is fixed on the base plate at the second station 1-2, and two sequence pads 12 are fixed at the front and back at the middle of the second station 1-2. A second sequence centering mandrel 16 is set at the center of the second sequence pad 12, and a second sequence support limiting post 13, a second sequence support post 14, and a second sequence anti-misalignment rod 15 are set from left to right around the second sequence centering mandrel 16. A hydraulic lever cylinder 24 is fixed on the base plate 1 around the second sequence pad 12, and a lever cylinder pressure plate 23 is set above the hydraulic lever cylinder 24. Two vertical third sequence plates 4 are fixed at the front and back at the right edge of the base plate 1 at the third station 1-3, and a third sequence support sleeve 22 is fixed on the front side of the left side of the third sequence plate 4. A third sequence centering mandrel 19 is set at the center of the third sequence support sleeve 22, a third sequence limiting post 20 is set on the upper end surface of the third sequence support sleeve 22, and three third sequence anti-misalignment rods 21 are equidistantly set on the outer circumference of the third sequence support sleeve 22. Two hydraulic angle cylinders 17 are fixed on the rear bottom plate 1 of the three-stage support sleeve 22, and an angle cylinder pressure plate 18 is provided above the hydraulic angle cylinders 17. Oil port 1 4-1 and oil port 2 4-2 are provided in the middle of the upper end face of the two three-stage vertical plates 4, and four lifting rings 3 are fixed at the four corners of the bottom plate 1.

[0012] The working process of this utility model is as follows: the reference sleeve 2 on the base plate 1 of the dual-station irregular-shaped deceleration pump cover drilling and milling integrated fixture serves as the positioning reference of the fixture and is used to position the program coordinates during debugging. During operation, the A face of the two pieces 25 is lowered onto the first-order support block 6, the inner cavity 25-4 of the workpiece 25 is inserted into the first-order limit cap 9 for limitation, the first-order centering mandrel 8 is inserted into the first and third-order centering holes 25-3 of the workpiece 25, the workpiece 25 is placed, the elastic support column 10 is pressed against the outer extension blank of the workpiece 25, the hydraulic system is activated, oil enters from the oil port 4-1, the lever cylinder pressure plate 11 on the hydraulic lever cylinder 7 controlled by the oil circuit in the base plate 1 presses the workpiece 25, and the holes on the pump cover, i.e. the workpiece 25, are drilled, and the notches and planes are milled. After machining surface A, place surface B of workpiece 25 towards the second-order support column 14. Lower the second-order support limiting column 13, which passes through the second-order and third-order connecting holes 25-2. Insert the second-order centering mandrel 16 into the second-order centering hole 25-1 of workpiece 25, and allow oil to enter through port 4-1. Press the lever cylinder pressure plate 23 on the hydraulic lever cylinder 24 to clamp workpiece 25, machining blind holes and precision milling the outer shape. Place surface A of workpiece 25 into the third-order support sleeve 22 at the third station 1-3. Insert the third-order centering mandrel 19 into the first-order and third-order centering holes 25-3 of workpiece 25. Insert the third-order limiting pin 20 into the second-order and third-order connecting holes 25-2, and allow oil to enter through port 4-1. Rotate the angle cylinder pressure plate 18 on the hydraulic angle cylinder 17 to clamp workpiece 25, machining oblique holes. After the entire workpiece 25 is machined, enter through oil port 24-2 to loosen and remove all the clamping parts of workpiece 25.

Claims

1. A dual-station, irregularly shaped decelerator pump cover drilling and milling integrated fixture, comprising a base plate (1), a first station (1-1), a second station (1-2), and a third station (1-3), characterized in that, Two sets of identical fixtures are mounted side-by-side above the base plate (1) of the first workstation (1-1). Each fixture consists of a support block (6) fixed on the base plate (1). A centering spindle (8) is positioned above the centering spindle (6). A limiting cap (9) is positioned around the centering spindle (8) in front and behind. A hydraulic lever cylinder (7) is symmetrically positioned around the support block (6) in front and behind. A lever cylinder pressure plate (11) is positioned above the hydraulic lever cylinder (7). On the outer base plate (1), contour-following anti-misalignment blocks (5) are provided on the left and right sides. On the left side of the contour-following anti-misalignment block (5), an elastic support column (10) is provided on the base plate (1). On the base plate (1) adjacent to the first station (1-1) at the second station (1-2), a reference sleeve (2) is provided in the middle position. At the second station (1-2), a second-order pad (12) with the same structure is provided at the front and back. A second-order centering mandrel (16) is provided in the middle above the second-order pad (12). A second-order support is symmetrically provided around the second-order centering mandrel (16). A support limiting column (13) is provided, and a second-order support column (14) is provided parallel to the second-order support limiting column (13). A second-order anti-misalignment rod (15) is provided symmetrically adjacent to the second-order support column (14). At the third work station (1-3), that is, at the right edge of the bottom plate (1), two third-order upright plates (4) perpendicular to the bottom plate are fixed front and back. A third-order support sleeve (22) is fixed on the right side of the left side of the two third-order upright plates (4). A third-order centering mandrel (19) is provided at the center of the third-order support sleeve (22). 2) Three three-order anti-mistake rods (21) are evenly spaced at 120 degrees around the perimeter. A three-order limit pin (20) is set between two of the three-order anti-mistake rods (21). A hydraulic angle cylinder (17) is fixed on the two three-order upright plates (4) and the rear side of the three-order support sleeve (22). An angle cylinder pressure plate (18) is set above the hydraulic angle cylinder (17). Oil port one (4-1) and oil port two (4-2) are respectively set on the upper end face of the two three-order upright plates (4). Four lifting rings (3) are fixed on the four corners of the base plate (1).

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