Valve tappet bottom surface thickness testing fixture

Abstract

The utility model provides a valve tappet bottom surface thickness testing fixture, which relates to the technical field of valve tappet testing fixtures and comprises a base, a measuring mechanism is mounted at the top end of the base close to the front surface, a fixing assembly is mounted at the top end of the base close to the back surface, and a valve tappet body is fixed in the fixing assembly. A driving assembly is installed in the base and located at the bottom of the measuring mechanism, a zero returning assembly is installed on the left side of the base and located on the right side of the fixing assembly, the measuring mechanism comprises a fixing frame, the fixing frame is installed at the top end of the driving assembly, and the measuring assembly can be driven to move up and down by rotating a second lead screw. By sliding the push-pull rod left and right, the back surface of the laser transmitter is tightly attached to the front surface of the valve tappet main body and uniformly slides, the thickness of the bottom surface of the valve tappet main body can be accurately and comprehensively measured, and the practicability is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve tappet testing fixture technical field especially relates to a valve tappet bottom surface thickness testing fixture. BACKGROUND

[0002] ‌Valve tappet is an important part in the valve train of automobile engine, its main function is to transmit the movement and force of camshaft to push rod or valve, and bear the lateral force of cam, at the same time, transmit it to engine body or cylinder head, valve tappet is divided into mechanical tappet and hydraulic tappet two types, and there are different structural forms in each type, such as plane tappet and roller tappet, in order to improve the dimensional accuracy of valve tappet, guarantee the normal operation and performance of engine, the bottom surface thickness needs to be measured;

[0003] After the production of valve tappet is completed, the thickness of the bottom surface needs to be measured, usually this process is manually completed by artificial hand holding ruler and other measuring tools, in the measuring process, it is inconvenient to measure the bottom surface comprehensively, leading to the reduction of measuring accuracy, and the practicality is insufficient, therefore, we propose a valve tappet bottom surface thickness testing fixture. UTILITY MODEL CONTENTS

[0004] The utility model discloses a valve tappet bottom surface thickness testing fixture, which can measure the thickness of the bottom surface of the valve tappet comprehensively, improve the measuring accuracy, and has high practicability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A valve tappet bottom surface thickness testing fixture, comprising a base, a measuring mechanism is installed at the top end of the base near the front surface;

[0007] A fixing assembly is installed at the top end of the base near the back surface, a valve tappet main body is fixed in the fixing assembly, a driving assembly is installed at the bottom of the measuring mechanism in the base, a zero reset assembly is installed at the left side of the base and right side of the fixing assembly;

[0008] The measuring mechanism comprises a fixing frame, the fixing frame is installed at the top end of the driving assembly, an adjusting assembly is installed at the inside of the fixing frame near the left side, a sliding seat is slidably connected to the inside of the fixing frame, and a measuring assembly is slidably connected to the front surface and back surface of the sliding seat.

[0009] As a preferred scheme of the utility model, a scale ruler is drawn on the front surface of the zero reset assembly at the left side of the base.

[0010] As the preferred scheme of the utility model, the fixed assembly includes a fixed ring, the fixed ring is fixedly installed at the top of the base, the top of the fixed ring is penetrated by a threaded rod in threaded connection with the inner side, one end of the threaded rod close to the bottom is rotationally connected with a clamping piece.

[0011] The technical effect of the above further scheme is that the clamping piece can be driven to move downward by rotating the threaded rod, so as to clamp and fix the valve tappet body in cooperation with the fixed ring, prevent loosening in the use process, and improve the use stability.

[0012] As the preferred scheme of the utility model, the driving assembly includes a first screw rod, the first screw rod is rotationally connected with the base, a first sliding block is sleeved on the periphery of the first screw rod, and the top of the first sliding block is welded with the bottom of the fixed frame.

[0013] The technical effect of the above further scheme is that the fixed frame can be driven by the first sliding block to move forward and backward by rotating the first screw rod, so that the measuring assembly is close to the front face of the valve tappet body, and the measurement is carried out in cooperation with the zero reset assembly.

[0014] As the preferred scheme of the utility model, the zero reset assembly includes a fixed block, a limiting plate is slidably connected in the fixed block, and the front face of the limiting plate close to the left side is abutted with the valve tappet body.

[0015] The technical effect of the above further scheme is that the one end of the valve tappet body bottom can be limited and fixed by the limiting plate, so that it is at the starting end of the scale ruler, thereby improving the measurement accuracy, and the limiting plate can be slid upward when the valve tappet body is fixed, so as to prevent the limiting plate from hindering the installation of the valve tappet body.

[0016] As the preferred scheme of the utility model, the adjusting assembly includes a second screw rod, the second screw rod is rotationally connected with the fixed frame, a second sliding block is sleeved on the periphery of the second screw rod, the right side of the second sliding block is fixedly connected with a sliding seat, a third sliding block is installed on the right side of the sliding seat, and the third sliding block is slidably connected with the fixed frame.

[0017] The technical effect of the above further scheme is that the second sliding block can be driven to move upward and downward by rotating the second screw rod, so that the measuring assembly is driven by the sliding seat to adjust the position upward and downward, and the measurement area of the front face of the valve tappet body is improved.

[0018] As the preferred scheme of the utility model, the measuring assembly includes a push-pull rod, the push-pull rod is slidably connected in the inside of the sliding seat, one end of the push-pull rod close to the back is slidably connected with a connecting piece, a spring is fixedly connected between the front face of the connecting piece and the push-pull rod, and a laser emitter is installed on the back face of the connecting piece.

[0019] The technical effect of the further scheme is that the push-pull rod drives the laser emitter to move left and right in the inside of the sliding base, thereby increasing the measurement area of the front surface of the valve lifter body, and the laser emitter can emit laser to irradiate on the scale ruler surface to obtain the thickness value of the bottom surface of the valve lifter body.

[0020] As a preferred scheme of the utility model, the output end of the laser emitter faces the right side, and a protective pad is installed close to one end of the valve lifter body.

[0021] The technical effect of the further scheme is that the protective pad can prevent the laser emitter from directly contacting the valve lifter body, thereby improving the protection effect of the laser emitter.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] In the utility model, the base and the measurement mechanism are designed, the measurement assembly can be moved up and down by rotating the second screw rod, the measurement area is increased, the back surface of the laser emitter is tightly slid on the front surface of the valve lifter body by sliding the push-pull rod left and right, once the local thickness of the bottom surface of the valve lifter deviates, the laser emitter can be adjusted in position forward or backward under the action of the spring, at this time, the laser spot irradiated on the scale ruler also moves correspondingly, thereby the thickness of the bottom surface of the valve lifter body can be accurately and comprehensively measured, and the practicability is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides a kind of overall structure schematic diagram of valve lifter bottom surface thickness gauge;

[0025] Figure 2 The utility model provides a kind of overall side structure dissection of valve lifter bottom surface thickness gauge;

[0026] Figure 3 The utility model provides a kind of measurement mechanism front structure dissection of valve lifter bottom surface thickness gauge;

[0027] Figure 4 The utility model provides a kind of measurement mechanism top end structure dissection of valve lifter bottom surface thickness gauge.

[0028] Legend: 1, base; 101, fixing assembly; 1011, fixing ring; 1012, threaded rod; 1013, clamping piece; 102, valve tappet main body; 103, driving assembly; 1031, first screw rod; 1032, first sliding block; 104, zero reset assembly; 1041, fixed block; 1042, limiting plate; 105, scale ruler; 2, measuring mechanism; 201, fixing frame; 202, adjusting assembly; 2021, second screw rod; 2022, second sliding block; 203, sliding seat; 2031, third sliding block; 204, measuring assembly; 2041, push-pull rod; 2042, connecting piece; 2043, spring; 2044, laser emitter. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In order to facilitate the understanding of the present application, the present application will be more fully described below with reference to the related description, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. As used herein the terms "vertical", "horizontal", "left", "right", and the like are merely used for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] Example 1

[0034] As Figures 1-4As shown, the utility model provides a technical scheme: a valve tappet bottom surface thickness testing fixture, including base 1, the top end of base 1 is installed with measuring mechanism 2 at the place near the front, the top end of base 1 is installed with fixed assembly 101 at the place near the back, the inside of fixed assembly 101 is fixed with valve tappet main body 102, the inside of base 1 and the bottom of measuring mechanism 2 are installed with drive assembly 103, the left side of base 1 and the right side of fixed assembly 101 are installed with zero return assembly 104, measuring mechanism 2 includes fixed frame 201, fixed frame 201 is installed at the top end of drive assembly 103, the inside of fixed frame 201 is installed with adjusting assembly 202 near the left side, the inside of fixed frame 201 is slidably connected with sliding seat 203, the front of sliding seat 203 is slidably connected with measuring assembly 204 through the back.

[0035] Example 2

[0036] As Figures 1-4As shown, the left side of the base 1 and the front of the zero reset component 104 are engraved with a scale ruler 105, the fixing component 101 comprises a fixing ring 1011 fixedly installed at the top end of the base 1, the top end of the fixing ring 1011 penetrates the inside and is threadedly connected with a threaded rod 1012, the end close to the bottom of the threaded rod 1012 is rotationally connected with a clamping piece 1013, the threaded rod 1012 can drive the clamping piece 1013 to move downward, so as to cooperate with the fixing ring 1011 to clamp and fix the valve tappet body 102, prevent it from loosening during use, and improve the use stability, the driving component 103 comprises a first lead screw 1031 rotationally connected with the base 1, the first lead screw 1031 is peripherally sleeved with a first sliding block 1032, the top end of the first sliding block 1032 is welded with the bottom of the fixing frame 201, the first sliding block 1032 can drive the fixing frame 201 to move forward and backward by rotating the first lead screw 1031, so that the measuring component 204 is close to the front of the valve tappet body 102, and the zero reset component 104 is measured, the zero reset component 104 comprises a fixed block 1041, the inside of the fixed block 1041 is slidably connected with a limiting plate 1042, the front of the limiting plate 1042 close to the left side is abutted with the valve tappet body 102, the limiting plate 1042 can limit and fix one end of the bottom of the valve tappet body 102, so that it is at the starting end of the scale ruler 105, thereby improving the measurement accuracy, through the sliding connection of the limiting plate 1042 and the fixed block 1041, the limiting plate 1042 can be slid upward when the valve tappet body 102 is fixed, so as to prevent the limiting plate 1042 from hindering the installation of the valve tappet body 102, the adjusting component 202 comprises a second lead screw 2021 rotationally connected with the fixing frame 201, the second lead screw 2021 is peripherally sleeved with a second sliding block 2022, the right side of the second sliding block 2022 is fixedly connected with a sliding seat 203, the right side of the sliding seat 203 is provided with a third sliding block 2031, the third sliding block 2031 is slidably connected with the fixing frame 201, the second sliding block 2022 can be driven to move upward and downward by rotating the second lead screw 2021, so that the second sliding block 2022 drives the measuring component 204 to adjust the position upward and downward through the sliding seat 203, thereby improving the measurement area of the front of the valve tappet body 102, the measuring component 204 comprises a push-pull rod 2041 slidably connected in the inside of the sliding seat 203, the end close to the back of the push-pull rod 2041 is slidably connected with a connecting piece 2042, the front of the connecting piece 2042 is fixedly connected with a spring 2043 between the push-pull rod 2041, the back of the connecting piece 2042 is provided with a laser emitter 2044, the push-pull rod 2041 can drive the laser emitter 2044 to move left and right in the inside of the sliding seat 203 through the sliding connection of the push-pull rod 2041 and the sliding seat 203, thereby improving the measurement area of the front of the valve tappet body 102,The laser emitter 2044 can emit laser irradiation on the surface of the scale ruler 105 to obtain the thickness value of the bottom surface of the valve lifter body 102, the output end of the laser emitter 2044 is directed to the right side, and a protective pad is arranged at one end of the valve lifter body 102, so that the laser emitter 2044 is prevented from directly contacting the valve lifter body 102, thereby improving the protection effect of the laser emitter 2044.

[0037] The working process of the utility model is as follows: when the valve lifter bottom surface thickness gauge is used for measuring the bottom surface thickness of the valve lifter body, first, rotate the first screw rod, drive the fixing frame through the first sliding block, make the laser emitter adhere to the valve lifter body, in the process, the laser emitter emits laser irradiation on the surface of the scale ruler, and then the preliminary vehicle data is obtained, push the push-pull rod, make it drive the laser emitter to slide left and right, make it drive the back of the laser emitter to adhere to the valve lifter body and slide uniformly, once the local thickness of the valve lifter bottom surface deviates, the laser emitter will be adjusted in position forward or backward under the action of the spring, at this time, the laser spot irradiated on the scale ruler will also move correspondingly, and then the thickness deviation of the valve lifter bottom surface can be measured accurately, and the practicability is effectively improved, when the valve lifter body is measured horizontally at the same height, rotate the second screw rod, make it drive the laser emitter to move downward through the second sliding block and the sliding seat, and then the horizontal measurement at another height can be started, and the effect of measuring the valve lifter bottom surface comprehensively is realized, the measurement accuracy is greatly improved, and the practicability is effectively improved.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve tappet bottom surface thickness gauge, comprising a base (1), characterized in that: A measuring mechanism (2) is installed at the top of the base (1) near the front. A fixing component (101) is installed at the top of the base (1) near the back. A valve tappet body (102) is fixed inside the fixing component (101). A drive component (103) is installed inside the base (1) and at the bottom of the measuring mechanism (2). A zeroing component (104) is installed on the left side of the base (1) and on the right side of the fixing component (101). The measuring mechanism (2) includes a fixed frame (201), which is mounted on the top of the drive assembly (103). An adjustment assembly (202) is installed inside the fixed frame (201) near the left side. A slide block (203) is slidably connected to the inner side of the fixed frame (201). A measuring assembly (204) is slidably connected to the front and back of the slide block (203).

2. The valve tappet bottom surface thickness gauge according to claim 1, characterized in that: A scale (105) is engraved on the left side of the base (1) and on the front of the zeroing component (104).

3. The valve tappet bottom surface thickness gauge according to claim 1, characterized in that: The fixing component (101) includes a fixing ring (1011), which is fixedly installed on the top of the base (1). The top of the fixing ring (1011) is threaded through the inner side and connected to a threaded rod (1012). The end of the threaded rod (1012) near the bottom is rotatably connected to a clip (1013).

4. The valve tappet bottom surface thickness gauge according to claim 1, characterized in that: The drive assembly (103) includes a first lead screw (1031), which is rotatably connected to the base (1). A first slider (1032) is sleeved around the first lead screw (1031), and the top of the first slider (1032) is welded to the bottom of the fixing frame (201).

5. A valve tappet bottom surface thickness gauge according to claim 1, characterized in that: The zeroing component (104) includes a fixing block (1041), and a limiting plate (1042) is slidably connected inside the fixing block (1041). The front of the limiting plate (1042) near the left side abuts against the valve tappet body (102).

6. The valve tappet bottom surface thickness gauge according to claim 1, characterized in that: The adjustment assembly (202) includes a second lead screw (2021), which is rotatably connected to the fixed frame (201). A second slider (2022) is sleeved around the second lead screw (2021). The right side of the second slider (2022) is fixedly connected to the slide block (203). A third slider (2031) is installed on the right side of the slide block (203), and the third slider (2031) is slidably connected to the fixed frame (201).

7. The valve tappet bottom surface thickness gauge according to claim 1, characterized in that: The measuring component (204) includes a push-pull rod (2041) which is slidably connected inside the slide block (203). A connector (2042) is slidably connected to one end of the push-pull rod (2041) near the back. A spring (2043) is fixedly connected between the front of the connector (2042) and the push-pull rod (2041). A laser emitter (2044) is mounted on the back of the connector (2042).

8. A valve tappet bottom surface thickness gauge according to claim 7, characterized in that: The output end of the laser emitter (2044) faces to the right, and a protective pad is installed at the end near the valve tappet body (102).

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