Positioning clamp for drilling brake pump shell

Abstract

The utility model discloses a positioning clamp for drilling of a brake pump shell. The positioning clamp comprises a mounting base used for fixing the brake pump shell. Four guide sliding grooves which are circumferentially distributed at equal intervals are formed in the mounting base in the radial direction, sliding blocks are installed in the guide sliding grooves in a sliding mode, movable clamping plates are fixedly arranged at the top ends of the sliding blocks, an inner hole is formed in the bottom end of the brake pump shell, the sliding blocks can be synchronously pushed to slide along the guide sliding grooves through an adjusting structure, and the movable clamping plates at the top ends of the sliding blocks abut against the inner hole; wherein a side plate is fixedly arranged on the mounting seat, and a stop block is fixedly mounted on the side plate; through the arrangement of the mounting base, the guide sliding groove, the sliding block, the movable clamping plate, the adjusting structure, the side plate and the stop block, the positioning and clamping requirements of brake pump shells of different sizes can be met, operation is easy and convenient, and practicability is high; and through the arrangement of a sliding plate, an adjusting block and a spring, sweeps generated during drilling can be effectively prevented from entering a guide sliding groove, the sweeps are accumulated on the top face of the mounting base, and follow-up cleaning is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamp technical field especially relates to a positioning fixture that brake pump shell drilling used. BACKGROUND

[0002] Brake pump is indispensable part in heavy -duty car brake system, it's main function is drive brake pad, brake pad friction brake drum, thereby reduce the vehicle speed. Brake pump shell appearance structure is relatively complex, when carrying out processing, the shell outer edge needs to carry out drilling processing, must be fastened before drilling processing.

[0003] For example the utility model discloses a brake pump shell drilling clamp of a kind of brake pump shell, it adopts the clamping mode of pneumatic cylinder and adjusting screw cooperation, can be quickly clamped and fixed to brake pump shell, facilitate brake pump shell positioning, facilitate the processing of screw hole on it, and the operation process is simple and fast, high processing efficiency, but such structure still has the following several significant defects:

[0004] 1, before drilling brake pump shell, according to the different size of it, need to replace the corresponding clamp, inconvenient for operator to operate, affect the use efficiency and practicality of clamp;

[0005] 2, due to the setting of guide sliding slot, and then the debris generated when brake pump shell drilling can enter guide sliding slot, not only easy to affect the sliding of subsequent movable clamping plate, and inconvenient manual cleaning. SUMMARY

[0006] The utility model aims at solving one of the technical problems existing in prior art.

[0007] The application provides a kind of positioning fixture that brake pump shell drilling is used, including the mounting seat for fixing brake pump shell;Four equal-interval circumferential distribution guide sliding slots are radially provided on mounting seat, sliding block is slidably installed in guide sliding slot, movable clamping plate is fixedly provided at the top of sliding block, inner hole is provided at the bottom end of brake pump shell, and the movable clamping plate at its top is all contacted with inner hole by adjusting structure can be synchronously pushed sliding block along guide sliding slot, so that;

[0008] Among them, side plate is fixedly provided on mounting seat, and blocking block is fixedly installed on side plate.

[0009] Further, adjusting structure includes adjusting disc, sliding cylinder and driving device, mounting cavity that is communicated with guide sliding slot is provided in mounting seat, rotating shaft is rotatably installed in mounting cavity, adjusting disc is fixedly provided on rotating shaft, four equal-interval circumferential distribution arc grooves are provided on adjusting disc, sliding cylinder that is slidably matched with corresponding arc groove is fixedly provided at the bottom end of sliding block, and driving device is provided on mounting seat, can drive adjusting disc rotation.

[0010] Further, the driving device comprises a driving motor, a worm and a worm wheel, the worm wheel is fixed on the rotating shaft, the driving motor is fixedly installed on the mounting seat, the output shaft of the driving motor is the worm, the worm extends into the mounting cavity and is engaged with the worm wheel.

[0011] Further, the radial distances of the parts of the circular arc groove to the rotating shaft axis are different.

[0012] Further, the movable clamping plate is a quarter of a circular ring body.

[0013] Further, the guide sliding groove is provided with a sliding plate groove, the sliding plate groove is slidably installed with a sliding plate, the sliding plate groove is provided with a threaded groove, the threaded groove is threadedly connected with an adjusting block, one end of the sliding plate is abutted with the corresponding sliding block, and the other end is connected with the adjusting block through a spring.

[0014] Further, the adjusting block is provided with an internal hexagonal groove.

[0015] Further, the inner diameter of the threaded groove is greater than the diagonal line length of the sliding plate groove.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. Through the setting of the mounting seat, the guide sliding groove, the sliding block, the movable clamping plate, the adjusting structure, the side plate and the blocking block, the positioning and clamping needs of brake pump shells with different sizes can be met, the staff can be conveniently operated, and the use efficiency and practicality of the positioning clamp are improved.

[0018] 2. Through the setting of the sliding plate, the adjusting block and the spring, the guide sliding groove outside the sliding block is blocked, the waste chips generated during drilling cannot enter the guide sliding groove, and can only be accumulated on the top surface of the mounting seat, so that the external cleaning device can clean the waste chips. DRAWINGS

[0019] Figure 1 It is a structure schematic view of a positioning clamp for drilling a brake pump shell in the embodiment of the application.

[0020] Figure 2 It is a structure schematic view of a positioning clamp for drilling a brake pump shell in the embodiment of the application. Figure 1 It is a sectional view structure schematic view along the A-A direction.

[0021] Figure 3 It is a structure schematic view of a positioning clamp for drilling a brake pump shell in the embodiment of the application. Figure 2 It is an enlarged structure schematic view of B in the middle.

[0022] Figure 4 It is a structure schematic view of a positioning clamp for drilling a brake pump shell in the embodiment of the application. Figure 1 It is a sectional view structure schematic view along the C-C direction.

[0023] Figure 5 It is a connection principle diagram of the sliding cylinder and the circular arc groove in the embodiment of the application.

[0024] Figure 6 Figure 1 is a structural schematic diagram of an active card in the embodiment of the present application;

[0025] Figure 7 Figure 1 is a structural schematic diagram of an active card in the embodiment of the present application; Figure 2 Figure 1 is a structural schematic diagram of an active card in the embodiment of the present application;

[0026] Figure 8 Figure 1 is a structural schematic diagram of an active card in the embodiment of the present application; Figure 1 Figure 1 is a structural schematic diagram of an active card in the embodiment of the present application.

[0027] Reference signs

[0028] 1 - brake pump shell, 11 - inner hole, 2 - mounting seat, 21 - guide sliding groove, 22 - sliding block, 23 - active card, 24 - adjusting structure, 241 - adjusting disc, 242 - sliding cylinder, 243 - circular arc groove, 244 - driving device, 245 - driving motor, 246 - worm, 247 - worm gear, 25 - side plate, 26 - blocking block, 27 - mounting cavity, 28 - rotating shaft, 31 - sliding plate groove, 32 - sliding plate, 33 - threaded groove, 34 - adjusting block, 35 - spring, 36 - inner hexagonal groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0030] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0031] The positioning clamp for drilling brake pump shell provided by the embodiments of the present application will be described in detail below with reference to the drawings, through specific embodiments and application scenarios.

[0032] Embodiment 1:

[0033] As Figures 1 to 5As shown, the embodiment of the present application provides a positioning clamp for drilling brake pump shell, which comprises a mounting seat 2 for fixing brake pump shell 1; four equidistant circumferentially distributed guide sliding grooves 21 are radially arranged on the mounting seat 2, sliding blocks 22 are slidably arranged in the guide sliding grooves 21, movable clamping plates 23 are fixedly arranged at the top of the sliding blocks 22, an inner hole 11 is arranged at the bottom end of the brake pump shell 1, and the movable clamping plates 23 at the top of the sliding blocks 22 are abutted with the inner hole 11 by adjusting structure 24 to synchronously push the sliding blocks 22 to slide along the guide sliding grooves 21; wherein, a side plate 25 is fixedly arranged on the mounting seat 2, and a blocking block 26 is fixedly installed on the side plate 25.

[0034] Further, the adjusting structure 24 comprises an adjusting disc 241, a sliding cylinder 242 and a driving device 244, the mounting seat 2 is provided with a mounting cavity 27 which is in communication with the guide sliding grooves 21, a rotating shaft 28 is rotatably arranged in the mounting cavity 27, the adjusting disc 241 is fixedly arranged on the rotating shaft 28, four equidistant circumferentially distributed arc grooves 243 are arranged on the adjusting disc 241, the sliding cylinders 242 which are slidably matched with the corresponding arc grooves 243 are fixedly arranged at the bottom end of the sliding blocks 22, and the driving device 244 is arranged on the mounting seat 2 to drive the adjusting disc 241 to rotate.

[0035] Further, the driving device 244 comprises a driving motor 245, a worm 246 and a worm wheel 247, the worm wheel 247 is fixedly arranged on the rotating shaft 28, the driving motor 245 is fixedly installed on the mounting seat 2, the output shaft of the driving motor 245 is the worm 246, the worm 246 extends into the mounting cavity 27 and is engaged with the worm wheel 247.

[0036] Further, the radial distances from the parts of the arc grooves 243 to the axis of the rotating shaft 28 are different.

[0037] Further, the movable clamping plates 23 are quarter circular ring bodies.

[0038] In the embodiment of the present application, since the above structure is adopted, before drilling the brake pump shell 1, the brake pump shell 1 to be drilled is placed on the mounting seat 2, and the four movable clamping plates 23 are located in the inner hole 11 of the brake pump shell 1, then the driving motor 245 is started, the worm 246 drives the worm wheel 247 to rotate, and then the adjusting disc 241 is synchronously rotated, since the radial distances from the parts of the arc grooves 243 on the rotating disc to the axis of the rotating shaft 28 are different, and the sliding cylinders 242 which are slidably matched with the corresponding arc grooves 243 are fixedly arranged at the bottom end of the sliding blocks 22, therefore, the rotation of the adjusting disc 241 drives the four sliding blocks 22 to slide outward at the same time, and then the movable clamping plates 23 at the top of the sliding blocks 22 are abutted with the inner hole 11, so as to complete the fixation of the brake pump shell 1.

[0039] The output shaft of the driving motor 245 is a worm 246, and the self-locking characteristic of the worm 246 and the worm gear 247 transmission makes the worm gear 247 unable to drive the worm 246 in reverse, that is, even if the driving motor 245 is accidentally damaged during the drilling process, the position of the movable clamping plate 23 will not be easily changed;

[0040] The mounting seat 2 is provided with a side plate 25, and the side plate 25 is fixedly provided with a blocking block 26. When the brake pump shell 1 is placed on the mounting seat 2, one end thereof abuts against the blocking block 26, and the blocking block 26 can prevent the brake pump shell 1 from rotating during the drilling process.

[0041] Embodiment 2:

[0042] As Figure 6 With Figure 7 As shown in the embodiment, in addition to the structural features of the foregoing embodiments, the guide sliding groove 21 is provided with a sliding plate groove 31, the sliding plate groove 31 is slidably provided with a sliding plate 32, the sliding plate groove 31 is provided with a threaded groove 33, the threaded groove 33 is threadedly connected with an adjusting block 34, one end of the sliding plate 32 abuts against the corresponding sliding block 22, and the other end is connected with the adjusting block 34 through a spring 35.

[0043] Further, the adjusting block 34 is provided with an internal hexagonal groove 36.

[0044] Further, the inner diameter of the threaded groove 33 is greater than the diagonal line length of the sliding plate groove 31.

[0045] In the embodiment of the present application, due to the adoption of the above structure, one end of the spring 35 abuts against and is fixed to the corresponding sliding plate 32, and the other end abuts against and is fixed to the corresponding adjusting block 34. Under the action of the elasticity of the spring 35, one end of the corresponding sliding plate 32 always abuts against the corresponding sliding block 22, thereby blocking the guide sliding groove 21 outside the sliding block 22, so that the drillings generated during drilling cannot enter the guide sliding groove 21, but can only accumulate on the top surface of the mounting seat 2, thereby facilitating the external cleaning device to clean the drillings;

[0046] The sliding plate groove 31 is provided with a threaded groove 33, the threaded groove 33 is threadedly connected with an adjusting block 34, the adjusting block 34 is provided with an internal hexagonal groove 36, the adjusting block 34 can be rotated and detached by an internal hexagonal handle, the inner diameter of the threaded groove 33 is greater than the diagonal line length of the sliding plate groove 31, when the adjusting block 34 is taken out, the corresponding spring 35 and the sliding plate 32 can be synchronously taken out as a whole, thereby facilitating maintenance and replacement operation, and thus ensuring long-term stable operation of the equipment.

[0047] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by someone other than the person named in the independent claims, and that the scope of the independent claims is not limited to the person named in the independent claims. In addition, it should be noted that the scope of the method and apparatus of the present application is not limited to performing the functions in the order shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in a reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0048] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, which are merely illustrative and not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.

Claims

1. A positioning fixture for drilling a brake pump housing, comprising a mounting base for fixing the brake pump housing, characterized in that, The mounting base is provided with four equally spaced circular guide grooves. A slider is slidably installed in each guide groove. A movable retaining plate is fixed at the top of each slider. The bottom of the brake pump housing is provided with an inner hole. By adjusting the structure, the slider can be pushed to slide along the guide groove simultaneously, so that the movable retaining plate at the top of each slider abuts against the inner hole. The mounting base is fixedly equipped with a side plate, and a blocking block is fixedly installed on the side plate.

2. The positioning fixture for drilling a brake pump housing according to claim 1, characterized in that, The adjustment structure includes an adjustment disc, a sliding cylinder, and a drive device. The mounting base has a mounting cavity that communicates with the guide groove. A rotating shaft is rotatably mounted in the mounting cavity. An adjustment disc is fixed on the rotating shaft. The adjustment disc has four equally spaced circular arc grooves. The bottom end of each slider is fixed with a sliding cylinder that slides in cooperation with the corresponding arc groove. The mounting base is equipped with a drive device that can drive the adjustment disc to rotate.

3. A positioning fixture for drilling a brake pump housing according to claim 2, characterized in that, The drive unit includes a drive motor, a worm and a worm wheel. The worm wheel is fixed on the rotating shaft, and the drive motor is fixedly mounted on the mounting base. The output shaft of the drive motor is the worm, which extends into the mounting cavity and meshes with the worm wheel.

4. A positioning fixture for drilling a brake pump housing according to claim 2, characterized in that, The radial distance from each part of the circular groove to the axis of rotation is different.

5. A positioning fixture for drilling a brake pump housing according to claim 1, characterized in that, The movable card plate is in the shape of a quarter of a circle.

6. A positioning fixture for drilling a brake pump housing according to claim 1, characterized in that, Each guide slide is equipped with a slide plate groove, and a slide plate is slidably installed in each slide plate groove. Each slide plate groove is equipped with a threaded groove, and an adjusting block is threadedly connected in the threaded groove. One end of the slide plate abuts against the corresponding slider, and the other end is connected to the adjusting block through a spring.

7. A positioning fixture for drilling a brake pump housing according to claim 6, characterized in that, The adjusting block is equipped with an internal hexagonal groove.

8. A positioning fixture for drilling a brake pump housing according to claim 6, characterized in that, The inner diameter of the threaded groove is greater than the diagonal length of the slide groove.

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