Fixture for machining hand brake pull rod of electric vehicle

Abstract

According to the clamp for machining the hand brake pull rod of the electric vehicle, end positioning devices used for being matched with the two ends of a blank are arranged at the lower ends of the side walls of the opposite sides of a first positioning plate and a second positioning plate, and the two ends of the blank are clamped and fixed to the first positioning plate and the second positioning plate in the state that the first positioning plate and the second positioning plate are detachably and fixedly connected; the parts except the two ends of the blank are located on the outer sides of the first positioning plate and the second positioning plate for finish machining; positioning devices used for being matched with the middle of the blank are arranged at the upper ends of the side walls of the opposite sides of the first positioning plate and the second positioning plate, the middle of the blank is clamped and fixed to the first positioning plate and the second positioning plate when the first positioning plate and the second positioning plate are detachably and fixedly connected, and therefore the two ends of the blank are located on the outer sides of the first positioning plate and the second positioning plate for finish machining. According to the utility model, the problems of high clamping difficulty and low processing efficiency and precision caused by irregular shape of the hand brake handle are solved, the processing steps are simplified, the processing efficiency and precision are improved, the consistency is good, the cost is low, and the use value is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tool fixture technical field, concretely relates to a clamp for electric motor car hand brake pull rod processing. BACKGROUND

[0002] With the development of society, electric motor car has become the traffic tool of the public, and the hand brake of electric motor car is to install the hand brake handle at the handle of the car, and the handle is provided with brake cable connected to the brake pad of the wheel, and when the hand brake handle is pressed, the brake cable can control the brake pad to stop the tire. The traditional processing procedure of the hand brake handle is to stamp two plates to form a metal framework, then to integrate injection molding through the brake cable hole and the hinge hole as the positioning hole, and to coat a layer of plastic protective layer outside the metal framework. Although this processing method is simple in process and low in cost, the quality is not ideal, which leads to low service life. Therefore, the hand brake handle is mostly made by machining and integrated molding. Since the hand brake handle is formed into an irregular shape of a curved surface, and the outer end head is spherical or circular, and the inner end is an irregular structure with a connecting hole, during processing, the blank is first cut into a similar shape of the drawing by wire cutting, and then the blank is precisely processed. However, since the shape of the blank is irregular, it is difficult to clamp, which brings difficulty to the subsequent processing precision and efficiency. Therefore, in order to solve the above problems, it is necessary to design a clamp for electric motor car hand brake pull rod processing. SUMMARY

[0003] The utility model solves the technical problem: provide a kind of clamp for electric motor car hand brake pull rod processing, according to the shape characteristics of hand brake handle, end positioning device and positioning device are set on positioning plate one and positioning plate two and distribute in upper and lower, realize the precision processing of the two ends of blank and the part outside the two ends, provide simple and fast positioning clamping condition for hand brake handle, solve the problem that it is difficult to hold and the processing efficiency and precision are low due to the irregular shape of hand brake handle, simplify processing steps, provide processing efficiency and precision, good consistency, low cost, high use value.

[0004] The utility model discloses a technical scheme: clamp for electric motor car hand brake pull rod processing, including positioning plate one and positioning plate two, the side wall lower end of positioning plate one and positioning plate two opposite side is equipped with the end positioning device for with the two ends of blank adaptation, and the two ends of blank are fixedly connected in the detachable state of positioning plate one and positioning plate two with positioning plate one and positioning plate two clamping and fixing, so that the part outside the two ends of blank is located on the outside of positioning plate one and positioning plate two and is precisely processed;The side wall upper end of positioning plate one and positioning plate two opposite side is equipped with the positioning device for with the middle part of blank adaptation, and the middle part of blank is fixedly connected in the detachable state of positioning plate one and positioning plate two with positioning plate one and positioning plate two clamping and fixing, so that the two ends of blank are located on the outside of positioning plate one and positioning plate two and are precisely processed.

[0005] Wherein, the end positioning device includes a small end positioning slot and a large end positioning slot, the lower end of the one side wall of the positioning plate is respectively provided with a small end positioning slot and a large end positioning slot with the notch downward, and the lower end of the two side walls of the positioning plate is also respectively provided with a small end positioning slot and a large end positioning slot with the notch downward and corresponding to the small end positioning slot and the large end positioning slot on the one side wall of the positioning plate, the slot depth of the small end positioning slot is less than half of the thickness of the small end of the blank, and the slot depth of the large end positioning slot is less than half of the thickness of the large end of the blank.

[0006] Further, the positioning device includes a middle positioning slot, the upper end of the one side wall of the positioning plate and the upper end of the two side walls of the positioning plate are respectively provided with a middle positioning slot with the notch located at the upper plate along, the slot bottom surface shape of the middle positioning slot is the same as the outer contour of the blank, and the two end portions of the blank which are not processed in the middle part of the middle positioning slot are respectively arranged outside the middle positioning slot, and the slot depth of the middle positioning slot is less than half of the thickness of the middle part of the blank.

[0007] Further, the middle part of the plate surface of the positioning plate one and the positioning plate two is symmetrically provided with two through holes, and the bolt passes through the through hole on the positioning plate one and the positioning plate two and is connected with the nut, so that the positioning plate one and the positioning plate two are detachably connected.

[0008] The advantages of the utility model compared with the prior art are:

[0009] 1. According to the shape characteristics of the hand brake handle, the small end positioning slot and the large end positioning slot are arranged at the lower end of the opposite side plate surface of the positioning plate one and the positioning plate two, the two end portions of the blank are respectively matched with the small end positioning slot and the large end positioning slot, the positioning plate one and the positioning plate two are detachably connected as a whole, the exposed middle part of the blank except the two end portions is provided with the finishing condition, and the middle part processing difficulty of the blank is reduced.

[0010] 2. The middle positioning slot is arranged at the upper end of the opposite side plate surface of the positioning plate one and the positioning plate two, the middle part positioning of the middle part after the finishing of the blank is provided with the condition, so that the two end portions of the blank exposed to the positioning plate one and the positioning plate two are provided with the finishing condition, and the reliable positioning condition of the two end portions of the blank is reduced.

[0011] 3. The technical scheme has the advantages of simple structure, novel design, flexible cooperation of the positioning slot and the positioning plate, reliable positioning of the finishing of the hand brake handle, simple and fast positioning clamping condition of the hand brake handle, large holding difficulty caused by the irregular shape of the hand brake handle, low processing efficiency and precision, simplified processing steps, high processing efficiency and precision, good consistency, low cost and high use value. DRAWINGS

[0012] Figure 1It is the state schematic view when the blank material middle part is positioned and clamped by the utility model;

[0013] Figure 2 It is the state schematic view when the blank material two ends are positioned and clamped by the utility model;

[0014] Figure 3 It is the plane structure schematic view of the positioning plate one or the positioning plate two of the utility model;

[0015] Figure 4 It is the structure schematic view of the middle part positioning groove when the positioning plate one or the positioning plate two is detachably fixedly connected. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described below, Figures 1-4 , of course, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0017] It should be noted that, in this article, unless otherwise specified, it should be understood that: the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for description purposes, and cannot be understood as indicating or implying relative importance.

[0018] In this article, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations. The element defined by the statement "including a..." does not exclude the presence of another identical element in the process, method, article or device including the element.

[0019] The electric vehicle hand brake pull rod processing clamp comprises a base, a clamping mechanism and a positioning mechanism, Figures 1-4As shown, including positioning plate one 1 and positioning plate two 2, the side wall lower end of the opposite side of the positioning plate one 1 and the positioning plate two 2 is provided with end positioning device for adapting to the both ends of the blank 3, and the both ends of the blank 3 are clamped and fixed with the positioning plate one 1 and the positioning plate two 2 in the detachable fixed state of the positioning plate one 1 and the positioning plate two 2, so that the part of the blank 3 outside the both ends is located outside the positioning plate one 1 and the positioning plate two 2 for finishing; the upper end of the side wall of the opposite side of the positioning plate one 1 and the positioning plate two 2 is provided with positioning device for adapting to the middle part of the blank 3, and the middle part of the blank 3 is clamped and fixed with the positioning plate one 1 and the positioning plate two 2 in the detachable fixed state of the positioning plate one 1 and the positioning plate two 2, so that the both ends of the blank 3 are located outside the positioning plate one 1 and the positioning plate two 2 for finishing.

[0020] As shown, Figure 3 The specific structure of the end positioning device is as follows: the end positioning device includes a small end positioning groove 4 and a large end positioning groove 5, the lower end of the side wall of the positioning plate one 1 and the positioning plate two 2 is respectively provided with the small end positioning groove 4 and the large end positioning groove 5 with the notch downward, and the lower end of the side wall of the positioning plate two 2 is also respectively provided with the small end positioning groove 4 and the large end positioning groove 5 with the notch downward and corresponding to the small end positioning groove 4 and the large end positioning groove 5 on the positioning plate one 1, the groove depth of the small end positioning groove 4 is less than half of the thickness of the small end of the blank 3, and the groove depth of the large end positioning groove 5 is less than half of the thickness of the large end of the blank 3; in the above structure, according to the shape characteristics of the hand brake handle, the small end positioning groove 4 and the large end positioning groove 5 are arranged at the lower end of the opposite side of the positioning plate one 1 and the positioning plate two 2, so that the both ends of the blank 3 are respectively adapted to the small end positioning groove 4 and the large end positioning groove 5, and the positioning plate one 1 and the positioning plate two 2 are detachably fixed as a whole, which provides conditions for finishing the exposed middle part of the blank 3 except the both ends, and reduces the processing difficulty of the middle part of the blank 3;

[0021] The specific structure of the positioning device is as follows: the positioning device includes a middle positioning groove 6, the upper end of the side wall of the positioning plate one 1 and the positioning plate two 2 is respectively provided with the middle positioning groove 6 with the notch located at the upper plate along, the bottom surface shape of the middle positioning groove 6 is the same as the outer contour of the blank 3, and the two ends of the blank 3 which are not processed and adapted to the middle part of the middle positioning groove 6 are arranged outside the middle positioning groove 6, the groove depth of the middle positioning groove 6 is less than half of the thickness of the middle part of the blank 3; in the above structure, the middle positioning groove 6 is arranged at the upper end of the opposite side of the positioning plate one 1 and the positioning plate two 2, which provides conditions for positioning the middle part of the blank 3 after finishing, so as to provide conditions for finishing the both ends of the blank 3 exposed outside the positioning plate one 1 and the positioning plate two 2, and provide reliable positioning conditions for finishing the both ends of the blank 3;

[0022] The detachable fixed connection structure of the positioning plate one 1 and the positioning plate two 2 is as follows: two through holes 7 are symmetrically arranged in the middle of the plate surface of the positioning plate one 1 and the positioning plate two 2, and the bolts pass through the through holes of the positioning plate one 1 and the positioning plate two 2 and are adaptively connected with the nuts, so that the positioning plate one 1 and the positioning plate two 2 are detachably fixed.

[0023] The technical scheme has simple structure and novel design, realizes reliable positioning of hand brake handle finishing machining through flexible cooperation of the positioning groove and the positioning plate, provides simple and fast positioning and clamping conditions for the hand brake handle, solves the problems of great clamping difficulty, low machining efficiency and precision caused by irregular shape of the hand brake handle, simplifies machining steps, provides machining efficiency and precision, has good consistency, is low in cost, high in use value and good in practicability.

[0024] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical scheme, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical schemes in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A fixture for machining electric vehicle handbrake levers, characterized in that: The positioning plate one (1) and the positioning plate two (2) are provided with end positioning devices on the lower end of the side wall of the opposite side, which are matched with the two ends of the blank (3), and the two ends of the blank (3) are clamped and fixed with the positioning plate one (1) and the positioning plate two (2) in the detachable fixed state, so that the part of the blank (3) outside the two ends is located outside the positioning plate one (1) and the positioning plate two (2) for finishing; the upper end of the side wall of the opposite side of the positioning plate one (1) and the positioning plate two (2) is provided with a positioning device matched with the middle part of the blank (3), and the middle part of the blank (3) is clamped and fixed with the positioning plate one (1) and the positioning plate two (2) in the detachable fixed state, so that the two ends of the blank (3) are located outside the positioning plate one (1) and the positioning plate two (2) for finishing.

2. The electric car hand brake lever machining clamp according to claim 1, characterized in that: The end positioning device includes a small end positioning groove (4) and a large end positioning groove (5), the small end positioning groove (4) and the large end positioning groove (5) are respectively provided on the lower end of the side wall of the positioning plate one (1) with the notch downward, and the small end positioning groove (4) and the large end positioning groove (5) are also respectively provided on the lower end of the side wall of the positioning plate two (2) with the notch downward and corresponding to the small end positioning groove (4) and the large end positioning groove (5) on the positioning plate one (1), the groove depth of the small end positioning groove (4) is less than half of the thickness of the small end of the blank (3), and the groove depth of the large end positioning groove (5) is less than half of the thickness of the large end of the blank (3).

3. The electrically operated car hand brake lever machining clamp according to claim 2, characterized in that: The positioning device includes a middle positioning groove (6), the upper end of the side wall of the positioning plate one (1) and the upper end of the side wall of the positioning plate two (2) are provided with the middle positioning groove (6) with the notch located at the upper plate along, the groove bottom surface shape of the middle positioning groove (6) is the same as the outer contour of the blank (3), and the two unprocessed ends of the blank (3) adapted to the middle positioning groove (6) are arranged outside the middle positioning groove (6), the groove depth of the middle positioning groove (6) is less than half of the thickness of the middle part of the blank (3).

4. The electric vehicle hand brake lever machining clamp according to claim 1 or 2 or 3, characterized in that: The positioning plate one (1) and the positioning plate two (2) are symmetrically provided with two through holes (7) in the middle of the plate surface, and the bolts pass through the through holes on the positioning plate one (1) and the positioning plate two (2) and are connected with the nuts, so as to realize the detachable fixed connection of the positioning plate one (1) and the positioning plate two (2).

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