Positioning clamp for power-assisted shell machining

Abstract

The utility model provides a positioning fixture for power-assisted shell processing, which comprises a bottom plate, a sliding chute penetrating up and down is arranged on the bottom plate, a pushing motor connected with a pushing sliding block is arranged at the bottom of the bottom plate, and the top of the pushing sliding block upwards penetrates through the sliding chute and is connected with the bottom of a fixture plate which is vertically arranged; a pre-pressing unit is installed at the end of the bottom plate, a first pressing clamp is installed on the upper portion of the side wall of one side, right opposite to the pre-pressing unit, of the clamp plate, a second pressing clamp is installed on the side wall, below the first pressing clamp, of the clamp plate, and a concave first positioning sinking groove is formed in the side wall, below the second pressing clamp, of the clamp plate. And a first auxiliary supporting rod is installed on the side wall of the clamp plate below the first positioning sinking groove, and an auxiliary pressing unit is arranged on the pushing sliding block below the first auxiliary supporting rod. After the scheme is adopted, the structure is reasonable, the positioning effect is good, and the speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a positioning fixture for processing a power-assisting housing. Background Art

[0002] With the rapid development of the economy and the continuous increase in the number of cars, road traffic conditions are deteriorating. Frequent operations make it easy for drivers to get tired of driving. The booster is a control device in the car that uses compressed air, high-pressure oil, etc. to achieve the purpose of light use and improve driving comfort; the booster shell is mostly irregular, with one side being arc-shaped or conical, and the other side having a raised shaft cylinder, etc., which makes it very inconvenient to process the booster shell; such as the vacuum booster shell punching die described in patent number 202223323663.6, which is positioned by multiple push motors and transmission screws. This method can only resist the three directions of the shell. After positioning, the shell is easy to shake and cannot be accurately positioned. Summary of the Invention

[0003] The purpose of the utility model is to provide a positioning fixture for power-assisted shell processing which has simple positioning and good use effect.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a positioning fixture for power-assisted shell processing, which includes a base plate, a slide groove passing through the bottom and the bottom of the base plate, a pushing motor is installed at the bottom of the base plate, a transmission screw is connected to the transmission shaft of the pushing motor, and a pushing slider is installed on the transmission screw, and the top of the pushing slider passes through the slide groove upward and is connected to the bottom of the vertically installed fixture plate; a pre-pressing unit is installed at the end of the base plate, a first pressing clamp is installed on the upper part of the side wall of the fixture plate facing the pre-pressing unit, a second pressing clamp is installed on the side wall of the fixture plate below the first pressing clamp, a first concave positioning groove is provided on the side wall of the fixture plate below the second pressing clamp, a first auxiliary support rod is installed on the side wall of the fixture plate below the first positioning groove, and an auxiliary pressing unit is provided on the pushing slider below the first auxiliary support rod.

[0005] A fixed plate is installed on the upper part of the side wall of the other side of the clamp plate facing the pre-pressing unit, and an inward-concave arc-shaped positioning groove is provided on the side wall of the clamp plate below the fixed plate. A second inward-concave positioning groove is provided on the side wall of the clamp plate below the arc-shaped positioning groove, and a second auxiliary support rod is movably inserted on the pushing slider below the second positioning groove.

[0006] The auxiliary clamping unit includes a third clamping clamp and a fourth clamping clamp, wherein the third clamping clamp is located below the first auxiliary support rod, and the fourth clamping clamp is located below the second positioning groove. An inwardly concave auxiliary support rod groove is provided on the pushing slide between the third clamping clamp and the fourth clamp.

[0007] The pre - pressing unit includes a pre - pressing motor and a pre - pressing plate. Among them, the pre - pressing plate is T - shaped. The transmission shaft of the pre - pressing motor is connected to one side of the end of the vertical arm of the pre - pressing plate. A pre - pressing rod is inserted into the other side of the end of the vertical arm of the pre - pressing plate. The cross - arm of the pre - pressing plate faces the direction of the fixture plate. At the bottom of the cross - arm of the pre - pressing plate, a tension pressing plate is movably hinged through a pre - pressing shaft. A V - shaped circlip is movably sleeved on the pre - pressing shaft. One fork arm of the V - shaped circlip abuts against the pre - pressing plate, and the other fork arm abuts against the tension pressing plate.

[0008] After the present utility model adopts the above - mentioned scheme, one end of the auxiliary support rod is inserted into the corresponding positioning sunk groove, and the other end of the auxiliary support rod is suspended. The booster housing is sleeved on the auxiliary support rod. The pushing motor rotates to drive the pushing slider to move towards the auxiliary pressing unit; the booster housing abuts against the tension pressing plate, and then the clamping head of the pressing pliers is pressed on the outer cavity wall of the booster housing to realize the surface positioning of the booster housing; the pushing motor rotates in the reverse direction to drive the fixture plate and the positioned booster housing away from the tension pressing plate, and then the external processing head can process the booster housing; the positioning method after adopting this scheme is simple, has a good positioning effect, and a fast positioning speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0010] Figure 2 is Figure 1 the enlarged schematic diagram at A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The following further describes the present utility model in conjunction with all the drawings. The preferred embodiment of the present utility model is as follows:

[0012] The embodiments described by referring to the drawings in this example are exemplary and are only used to explain this patent, and should not be construed as a limitation to this patent.

[0013] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this patent.

[0014] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0015] See the appendix Figure 1 and the appendix Figure 2 As shown in the appendix, a positioning fixture for the processing of a power-assisted housing according to this embodiment includes a bottom plate 1. A vertically penetrating chute is provided on the bottom plate 1. A pushing motor 2 is installed at the bottom of the bottom plate 1. A transmission screw is connected to the transmission shaft of the pushing motor 2. A pushing slider 3 is installed on the transmission screw. The top of the pushing slider 3 passes upward through the chute and is connected to the bottom of a vertically installed fixture plate 4. The fixture plate and the pushing motor can be set as required to realize the processing of multiple power-assisted housings at one time. A pre-pressing unit is installed at the end of the bottom plate 1. On the upper part of one side wall of the fixture plate 4 facing the pre-pressing unit, a first pressing clamp 5 is installed. On the side wall of the fixture plate 4 below the first pressing clamp 5, a second pressing clamp 6 is installed. On the side wall of the fixture plate 4 below the second pressing clamp 6, a concave first positioning sink 7 is provided. On the side wall of the fixture plate 4 below the first positioning sink 7, a first auxiliary support rod 8 is installed. On the pushing slider 3 below the first auxiliary support rod 8, an auxiliary pressing unit is provided. On the upper part of the other side wall of the fixture plate 4 facing the pre-pressing unit, a fixing plate 9 is installed. On the side wall of the fixture plate 4 below the fixing plate 9, a concave arc-shaped positioning groove 10 is provided. On the side wall of the fixture plate 4 below the arc-shaped positioning groove 10, a concave second positioning sink 11 is provided. A second auxiliary support rod 12 is movably inserted on the pushing slider 3 below the second positioning sink 11.

[0016] The auxiliary pressing unit includes a third pressing clamp 13 and a fourth pressing clamp 14. Among them, the third pressing clamp 13 is located below the first auxiliary support rod 8, and the fourth pressing clamp 14 is located below the second positioning sink 11. An auxiliary support rod sink is provided on the pushing slider 3 between the third pressing clamp 13 and the fourth pressing clamp 14.

[0017] The pre-pressing unit includes a pre-pressing motor 15 and a pre-pressing plate 16. Among them, the pre-pressing plate 16 is T-shaped. The transmission shaft of the pre-pressing motor 15 is connected to one side of the end of the vertical arm of the pre-pressing plate 16. A pre-pressing rod 17 is inserted into the other side of the end of the vertical arm of the pre-pressing plate 16. The horizontal arm of the pre-pressing plate 16 faces the fixture plate 4. The bottom of the horizontal arm of the pre-pressing plate 16 is movably hinged to a tension pressing plate 18 through a pre-pressing shaft. A V-shaped snap spring is movably sleeved on the pre-pressing shaft. One fork arm of the V-shaped snap spring abuts against the pre-pressing plate 16, and the other fork arm abuts against the tension pressing plate 18.

[0018] After adopting the above solution, the pressing clamp is a pneumatic pressing clamp. A pressure regulating valve is installed on the fixture plate as needed to control the air pressure. In the original state, the fixture plate is far from the auxiliary pressing unit. A plurality of positioning sunk grooves are provided on the fixture plate. One end of the auxiliary support rod is inserted into the corresponding positioning sunk groove, and the other end of the auxiliary support rod is suspended. The booster housing is sleeved on the auxiliary support rod. The arc-shaped positioning groove is used to position the shaft cylinder. When positioning, the convex part of the shaft cylinder can be embedded into the arc-shaped positioning groove. The pushing motor rotates, drives the transmission screw to operate through the transmission shaft, and the transmission screw drives the pushing slider to move towards the auxiliary pressing unit.

[0019] The pre-pressing motor in the auxiliary pressing unit rotates, driving the pre-pressing plate to rotate. The movement of the pre-pressing plate makes the tension pressing plate in a vertical state (facing the fixture plate direction after being in the vertical state).

[0020] The pushing motor continues to operate and drives the booster housing to move towards the tension pressing plate, making the booster housing contact the tension pressing plate. A V-shaped circlip is used to prevent rigid extrusion between the booster housing and the tension pressing plate. Make the other end of the booster housing completely contact the fixture plate.

[0021] Then press the pressing clamp head on the outer cavity wall of the booster housing to achieve surface positioning of the booster housing. The pushing motor rotates in the reverse direction, driving the fixture plate and the positioned booster housing away from the tension pressing plate, and then the booster housing can be punched or ground by an external processing head. The quantity and position of the auxiliary support rods are adjusted according to the inner cavity size of the booster housing. The positioning method after adopting this solution is simple, has a good positioning effect, and a fast positioning speed.

[0022] The above-described embodiments are only the preferred embodiments of the present invention, and do not limit the implementation scope of the present invention. Therefore, all changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A positioning fixture for the processing of a power-assisted housing, which comprises a bottom plate (1), and is characterized in that: The bottom plate (1) is provided with a chute penetrating up and down. A pushing motor (2) is installed at the bottom of the bottom plate (1). A transmission screw is connected to the transmission shaft of the pushing motor (2). A pushing slider (3) is installed on the transmission screw. The top of the pushing slider (3) passes upward through the chute and is connected to the bottom of a vertically installed fixture plate (4). A pre-pressing unit is installed at the end of the bottom plate (1). On the upper part of one side wall of the fixture plate (4) facing the pre-pressing unit, a first pressing clamp (5) is installed. On the side wall of the fixture plate (4) below the first pressing clamp (5), a second pressing clamp (6) is installed. On the side wall of the fixture plate (4) below the second pressing clamp (6), a concave first positioning sink (7) is provided. On the side wall of the fixture plate (4) below the first positioning sink (7), a first auxiliary support rod (8) is installed. An auxiliary pressing unit is provided on the pushing slider (3) below the first auxiliary support rod (8).

2. The positioning fixture for the processing of the power-assisted housing according to claim 1, characterized in that: On the upper part of the other side wall of the fixture plate (4) facing the pre-pressing unit, a fixing plate (9) is installed. On the side wall of the fixture plate (4) below the fixing plate (9), a concave arc-shaped positioning groove (10) is provided. On the side wall of the fixture plate (4) below the arc-shaped positioning groove (10), a concave second positioning sink (11) is provided. A second auxiliary support rod (12) is movably inserted on the pushing slider (3) below the second positioning sink (11).

3. The positioning fixture for the processing of the power-assisted housing according to claim 1, characterized in that: The auxiliary pressing unit includes a third pressing clamp (13) and a fourth pressing clamp (14). Among them, the third pressing clamp (13) is located below the first auxiliary support rod (8), the fourth pressing clamp (14) is located below the second positioning sink (11), and a concave auxiliary support rod sink is provided on the pushing slider (3) between the third pressing clamp (13) and the fourth pressing clamp (14).

4. A positioning fixture for the processing of a boosting housing according to claim 1, characterized in that: The pre-pressing unit includes a pre-pressing motor (15) and a pre-pressing plate (16). Among them, the pre-pressing plate (16) is in a T shape. The transmission shaft of the pre-pressing motor (15) is connected to one side of the end of the vertical arm of the pre-pressing plate (16). A pre-pressing rod (17) is inserted on the other side of the end of the vertical arm of the pre-pressing plate (16). The horizontal arm of the pre-pressing plate (16) faces the direction of the fixture plate (4). The bottom of the horizontal arm of the pre-pressing plate (16) is movably hinged with a tension pressing plate (18) through a pre-pressing shaft. A V-shaped snap spring is movably sleeved on the pre-pressing shaft. One fork arm of the V-shaped snap spring abuts against the pre-pressing plate (16), and the other fork arm abuts against the tension pressing plate (18).

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