CN111633449A - A push-in positioning fixture for pure electric vehicle drive motor housing - Google Patents

Abstract

The invention relates to a push-in positioning fixture for a pure electric vehicle drive motor casing, comprising a bottom plate, a translation panel and a rear vertical plate. The longitudinal slide rails of the machine are installed with translation panels that slide back and forth, a rear vertical plate is installed vertically at the rear of the bottom plate, and a diameter-expanding positioning pin is installed in the center position of the front side of the rear vertical plate. The front side of the vertical plate is arranged with three positioning heads surrounding the diameter-expanding positioning pins, the front and rear parts of the upper end of the translation panel are horizontally installed with long positioning blocks, and the front and rear ends of the upper end of the translation panel are respectively installed with front parts Support and rear support. The invention has the characteristics of simplifying the positioning operation of the motor casing, improving the finishing efficiency, facilitating the detection process and the structure of the finishing process, and improving the product production efficiency.

Description

A push-in positioning fixture for pure electric vehicle drive motor housing

technical field

The invention relates to the technical field of finishing fixtures, in particular to a push-in positioning fixture used for a pure electric vehicle drive motor housing.

Background technique

The motor shell is generally made of large die-casting parts, and it is very difficult to clamp the fixture. Because the shape of the shell is generally a cylindrical structure, there are many irregular connecting frames on the outer ring of the shell. If the motor shell is placed vertically, When the machine tool is processed, the holes of the irregular connecting frame are on the side, which is not conducive to the synchronous processing of the CNC machine tool. At the same time, there will be a certain interference between the shell and the processing fixture, which is not conducive to the movement of the tool and causes production accidents. In order to solve this problem, it is necessary to Design a new positioning jig.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a push-in positioning fixture for driving a motor casing of a pure electric vehicle, which has the advantages of simplifying the positioning operation of the motor casing, improving the finishing efficiency, facilitating the detection process and finishing process structure, Improve product production efficiency and other characteristics.

The technical solution adopted by the present invention to solve the technical problem is to provide a push-in positioning fixture for a pure electric vehicle drive motor housing, including a bottom plate, a translation panel and a rear vertical plate, and the middle part of the upper end face of the bottom plate Two longitudinal slide rails are installed side by side, the longitudinal slide rails are installed with a translation panel that slides back and forth, and a rear vertical plate is vertically installed at the rear of the bottom plate, which is installed in the center of the front side of the rear vertical plate. There are diameter-expanding positioning pins, three positioning heads surrounding the diameter-expanding positioning pins are arranged on the front side of the rear vertical plate, and long positioning blocks are horizontally installed on the front and rear of the upper end of the translation panel. A front support and a rear support are respectively installed on the front and rear ends of the upper end of the translation panel.

This technical solution is suitable for the finishing operation of the motor casing. The product clamping is different from other clamping methods. When clamping, the product is first hoisted and placed on the translation panel, and the long positioning block on the translation panel, the front part The support and the rear support are initially positioned, and then the translation panel is pushed to make one end of the product abut the rear vertical plate, and the expansion positioning pin on the rear vertical plate is inserted into the product, and then all clamping structures are activated to lock the product. , It is convenient for the product to be finished in the machining center. Because the overall structure of the product is cylindrical, and when it is clamped vertically, the tool of the machining center is likely to interfere with the clamping part or the product structure to a certain extent, which is likely to cause production accidents. At the same time, due to the large size and weight of the product, it is not conducive to manual direct clamping. In order to ensure the clamping speed, it is necessary to first place the product on the translation panel for rough positioning, which can greatly simplify the clamping difficulty and improve production. efficiency.

Preferably, quick clamps are arranged and installed in the upper middle part of the front side of the rear vertical plate, three positioning pads surrounding the diameter-expanding positioning pins are arranged in the middle part of the front side of the rear vertical plate, and the rear vertical plate The front side of the plate is arranged with three lever-type clamping oil cylinders surrounding the diameter-expanding positioning pins, and the lever-type clamping oil cylinders and the positioning head seat are arranged in dislocation.

The outer ring of the motor shell clamped by this technical solution is cylindrical, and the product can be clamped stably by means of three-point positioning. Full locking is achieved through oil pressure control, ensuring that the product does not drift during the finishing process.

Preferably, two sliding blocks corresponding to two longitudinal slide rails are installed side by side on the lower end surface of the translation panel, and horizontally arranged brushes are installed on the lower end surface of the translation panel. The bristles of the row brush face downward and contact the upper end face of the base plate.

When the product is finished in the machining center, a large amount of waste will be generated, and the waste will fall on the bottom plate, which will affect the push of the translation panel. In order to ensure the normal operation of the translation panel, a brush is designed. During the movement of the translation panel, The scrap will be brushed off the bottom plate to avoid the accumulation of scrap and affect the normal processing of the product.

Preferably, a limit stop is installed at the edge of the lower end face of the translation panel.

By installing the limit stop, the derailment of the translation panel can be effectively avoided, and the initial state position of the translation panel can also be determined.

Preferably, protrusions extending upward are arranged on both ends of the upper side of the long positioning block, the upper right part of the left end protrusion adopts an arc surface structure, and the upper left part of the right end protrusion adopts an arc surface structure, so Both ends of the long positioning block are butted with the translation panel through connecting pins, and two adjusting nuts are sleeved on the connecting pins.

The two ends of the long positioning block are arranged with through holes matching the upper end of the connecting pin. By adjusting the height of the two adjusting nuts, the two ends of the long positioning block can be adjusted. At the same time, the level of the product is ensured. There is a bulge with a curved surface structure toward the middle, which can effectively support the curved surface on the underside of the product, avoid damage to the surface of the product, and also facilitate product positioning, and can prevent the product from shifting when moving with the translation panel.

Preferably, two support cylinder bases located on both sides of the translation panel are installed at the front end of the upper end surface of the bottom plate, and the upper support head of the support cylinder base is inclined toward the centerline of the translation panel.

In this technical solution, the support cylinder base mainly positions the front end of the product. After the translation panel moves in place, the oil cylinder of the support cylinder base starts, contacts the surface of the product and moves to a predetermined position and locks it to improve the seismic performance of the fixture and ensure that no Jitter occurs.

Preferably, a buffer matched with the diameter-expanding positioning pin is installed in the rear vertical plate.

The function of the buffer is to slow down the movement of the moving panel when it is about to touch, causing it to hit the rear vertical plate.

Preferably, three positions of the front side of the rear vertical plate are installed with water jet joint alignment positioning pads, and a reference cover plate is installed on the side surface of the rear vertical plate. Two positioning pin seats are installed on the front side.

In this technical solution, in order to facilitate product washing, a water spray joint is designed, which can be connected with the flushing pipe, and the flushing pipe is selected from an adjustable plastic pipe to ensure that the cutting part of the product is flushed without interfering with the tool. operate.

Preferably, an oil inlet joint seat and an air inlet joint seat are respectively installed on the foot positions at the front end edge of the bottom plate, and a connecting support cylinder seat and a lever-type clamping oil cylinder are embedded and installed at the right end edge of the middle part of the upper end face of the bottom plate. sequence valve.

Sequence valves are used to control the activation sequence of the work support and lever clamp cylinders to ensure the product is held in place.

Preferably, a vertical support oil cylinder is installed at the support cylinder seat on the left side of the front end of the translation panel, and a push-in handle is installed at the front end of the translation panel.

Beneficial effects: The present invention relates to a push-in positioning fixture for a pure electric vehicle drive motor housing, and the specific beneficial effects are as follows:

(1) In this technical scheme, the motor housing is pushed in and positioned by designing a translation panel, which simplifies the operation difficulty of the workers. At the same time, the product replacement is carried out in the form of a gantry crane, which greatly reduces the hidden danger of safety and reduces the labor costs. labor intensity;

(2) By designing the expanding locating pin, the lever-type clamping cylinder and the support cylinder seat, the entire product is locked and positioned to ensure that the product will not be offset during the machining process of the machining center. At the same time, the rear vertical plate is designed. The detection component is assembled with the flushing component, which is convenient for workers to operate, improves the degree of adaptation with the machining center, and improves the scope of application of the fixture;

(3) The modular design of the oil inlet pipeline and the air inlet pipeline can effectively simplify the pipeline design, and avoid the interface being too complicated, which will cause interference between the tool and the fixture, which can save production costs.

Description of drawings

Fig. 1 is the structural view of the present invention;

Fig. 2 is the left side view of the present invention;

Fig. 3 is the top view of the present invention;

Fig. 4 is the A-A direction sectional view in Fig. 2 of the present invention;

Fig. 5 is the B-B direction sectional view in Fig. 2 of the present invention;

Fig. 6 is the C-C direction sectional view in Fig. 3 of the present invention;

Fig. 7 is the structural view of the vertical support oil cylinder of the present invention;

Figure 8 is a structural view of the present invention after the product is installed.

Illustration: 1. Bottom plate, 2. Translating panel, 3. Longitudinal slide rail, 4. Rear vertical plate, 5. Long positioning block, 6. Support cylinder seat, 7. Diameter expansion positioning pin, 8. Positioning head seat , 9, rear support, 10, lever type clamping cylinder, 11, reference cover, 12, quick clamp, 13, positioning pad, 14, front support, 15, push handle, 16, oil inlet joint Seat, 17, Inlet connector seat, 18, Sequence valve, 19, Limit stop, 20, Water spray connector, 22, Positioning pin seat, 23, Slider, 24, Brush row, 25, Buffer, 26, Vertical support cylinder.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Embodiments of the present invention relate to a push-in positioning fixture for a pure electric vehicle drive motor housing, as shown in Figures 1-8, comprising a bottom plate 1, a translation panel 2 and a rear vertical plate 4, the bottom plate 1. Two longitudinal slide rails 3 are installed side by side in the middle of the upper end face. The longitudinal slide rails 3 are provided with a translation panel 2 that slides back and forth. A diameter-expanding positioning pin 7 is installed in the center position of the front side of the vertical plate 4 , three positioning heads 8 surrounding the diameter-expanding positioning pin 7 are arranged on the front side of the rear vertical plate 4 , and the upper end of the translation panel 2 A long positioning block 5 is installed laterally on the front and rear parts, and a front support 14 and a rear support 9 are respectively installed on the front and rear ends of the upper end of the translation panel 2 .

This technical solution has the functions of clamping and product detection at the same time. During use, workers first use transport equipment such as cranes to transport the motor casing to the translation panel 2, and the translation panel 2 passes through the long positioning block 5 and the front part. The support 14 and the rear support 9 perform a preliminary positioning of the housing, and then the worker manually moves the translation panel 2 toward the rear vertical plate 4 by pushing in the handle 15. After the translation panel 2 is moved in place, first position the head seat 8 and The quick clamp 12 performs rough positioning and detection of the product. The elastic latch used in the positioning head base 8 can detect the outer ring of the product, and the quick clamp 12 fixes the end of the product, and then starts the expansion positioning through the hydraulic control system. Pin 7, the diameter-expanding positioning pin 7 is located in the through hole at the end of the product, and the end is locked and fixed by expanding the diameter, and then the lever-type clamping cylinder 10 is activated to lock the product. The positioning blowing point communicated with the air inlet joint seat 17, the positioning blowing point is connected with the product, and blows out the gas, and the change of the pressure is sensed by the sensing device on the fixture, so as to determine whether the clamping is accurate.

The positioning blowing point is arranged on the end face of the expanding positioning pin 7, and a pressure sensor is installed in the expanding positioning pin 7. After the positioning detection is completed, the vertical support oil cylinder 26 and the support cylinder seat 6 are activated through the sequence valve 18 according to the following steps: The process setting sequence is used for auxiliary support and compression, and the ejection speed of the vertical support cylinder 26 and the support cylinder seat 6 is controlled by the internal speed control valve to avoid the support block from being separated from the product surface due to the excessive ejection speed. As a result, the support points of the fixture are insufficient, and the seismic effect is lost.

Finally, the machine tool processing is carried out. After the product processing is completed, the vertical support cylinder 26, the support cylinder base 6 and the lever-type clamping cylinder 10 are first opened, then the expansion positioning pin 7 is opened, and then the translation panel 2 is moved forward, and the product is taken out, Finally, the fixture part is cleaned by water spray through the water spray joint 20, which is used to prepare for the next product processing.

In this technical solution, a limit stop 19 and a brush 24 are respectively installed on the lower end surface of the translation panel 2. The limit stop 19 is matched with the positioning pin on the side of the end of the longitudinal slide rail 3 to prevent the translation panel 2 from derailing. The brushes 24 on the lower end face of the panel 2 can effectively clean the bottom plate 2 to ensure that there is no accumulation of debris on the bottom plate 1 below the translation panel 2, and to ensure the cleanliness of the fixture.

The selection of hoisting equipment such as gantry cranes in this technical solution can effectively reduce the risk of products crushing workers, and at the same time reduce recognized labor costs. At the same time, this technical solution can be connected with automatic feeding equipment, which will increase the accuracy of product positioning and save labor costs. .

The diameter-expanding positioning pin 7 in this technical solution not only serves as a precise positioning and locking component, but also serves as a detection component. A number of positioning and blowing points communicated with the intake joint seat 17 are arranged on the end face of the expanding-diameter positioning pin 7. There is a pressure sensor installed in the positioning blowing point. When the positioning blowing point is blowing, if the installation position is correct, there will be no gap between the positioning blowing point and the product, so the pressure is constantly increased, and when the installation position occurs The offset is that there must be a gap between the positioning blowing point and the product, and the internal pressure will leak, so the product can be detected.

In the design process, by modularizing the pneumatic pipeline of the fixture and the joints of the hydraulic pipeline, the product structure can be effectively simplified, and at the same time, it is convenient for workers to integrate the hydraulic and pneumatic pipelines, which greatly improves the operation speed of the workers.

Claims (10)

1. The utility model provides a push-in positioning fixture for pure electric vehicles driving motor casing which characterized in that: the movable type horizontal plate bending machine comprises a bottom plate (1), a horizontal moving panel (2) and a rear vertical plate (4), wherein two longitudinal slide rails (3) are arranged in the middle of the upper end face of the bottom plate (1) side by side, the horizontal moving panel (2) which slides back and forth is arranged on the longitudinal slide rails (3), the rear vertical plate (4) is vertically arranged at the rear part of the bottom plate (1), an expanding positioning pin (7) is arranged in the center position of the front side of the rear vertical plate (4), three positioning head seats (8) surrounding the expanding positioning pin (7) are arranged on the front side of the rear vertical plate (4), a long positioning block (5) is transversely arranged at the front rear part of the upper end face of the horizontal moving panel (2), and a front support (14) and a rear support (9) are respectively arranged at the front.

2. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: the automatic clamp is characterized in that a quick clamp (12) is arranged in the middle of the upper portion of the front side of the rear vertical plate (4), three positioning cushion blocks (13) surrounding the diameter-expanding positioning pin (7) are arranged in the middle of the front side of the rear vertical plate (4), three lever-type clamping oil cylinders (10) surrounding the diameter-expanding positioning pin (7) are arranged in the front side of the rear vertical plate (4), and the lever-type clamping oil cylinders (10) and the positioning head seat (8) are arranged in a staggered mode.

3. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: the lower terminal surface of translation panel (2) on install two slider (23) with two longitudinal slide rail (3) one-to-one side by side, translation panel (2) down install on the terminal surface and be horizontal arrangement arrange brush (24), the brush hair of arranging brush (24) down with bottom plate (1) up end contact.

4. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: and a limit stop (19) is arranged at the edge of the lower end face of the translation panel (2).

5. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: the utility model discloses a horizontal translation panel (2) of rectangular locating piece, rectangular locating piece (5) have set up the arch of extending up on the upside both ends of rectangular locating piece (5), the bellied upper end right part in left end adopts cambered surface structure, the bellied upper end left part of right-hand member adopts cambered surface structure, rectangular locating piece (5) both ends pass through the connecting pin and dock with translation panel (2), cup jointed two adjusting nut on the connecting pin.

6. A push-in positioning fixture for pure electric vehicles driving motor casings according to claim 2, characterized in that: two supporting cylinder seats (6) positioned on two sides of the translation panel (2) are installed at the front end of the upper end face of the bottom plate (1), and the supporting heads at the upper ends of the supporting cylinder seats (6) incline towards the central line position of the translation panel (2).

7. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: and a buffer (25) matched with the diameter-expanding positioning pin (7) is arranged in the rear vertical plate (4).

8. A push-in positioning fixture for pure electric vehicles drive motor casing according to claim 1, characterized in that: the water spray device is characterized in that a water spray joint (20) is installed at the upper left corner of the front side face of the rear vertical plate (4), a reference cover plate (11) is installed on the upper side face of the rear vertical plate (4), and a positioning pin seat (22) is installed at the right front side portion of the rear vertical plate (4).

9. A push-in positioning fixture for pure electric vehicles driving motor casings according to claim 6, characterized in that: an oil inlet joint seat (16) and an air inlet joint seat (17) are respectively installed on the support leg positions at the edge of the front end of the bottom plate (1), and a sequence valve (18) for connecting the support cylinder seat (6) and the lever type clamping oil cylinder (10) is installed at the edge of the right end of the middle part of the upper end face of the bottom plate (1) in an embedded mode.

10. A push-in positioning fixture for pure electric vehicles driving motor casings according to claim 6, characterized in that: the left side of the front end of the translation panel (2) close to the support cylinder seat (6) of the left part is provided with a vertical support cylinder (26), and the front end of the translation panel (2) is provided with a push-in handle (15).

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