CN206710084U - Bushing test fixture - Google Patents

Abstract

The utility model discloses a bush testing tool. The bushing testing tooling comprises: a base, on which a chute is arranged; two clamping pieces, the two clamping pieces are relatively arranged in the chute and are slidable relative to the chute respectively; The bushing holder is used to fix the bushing, and the bushing holder can be installed between the two clamping parts horizontally or vertically for axial or radial testing of the bushing. Utilizing the bush test tool of the utility model can realize the axial test test or the radial test test of different specification bushes and bush assemblies, and only by changing the specific structure of the lower fixing part, the bush test tool can be Applied to different test devices, it can be seen that the bushing test tool has high versatility, which is beneficial to reduce the number of bush test Or the test cycle of the bushing assembly.

Description

Bushing Test Fixture

technical field

The utility model relates to the field of clamps, in particular to a bushing testing tool.

Background technique

Bushings are widely used in the field of vehicles. There are various types and shapes of bushings. In the design, adjustment and production of the whole vehicle, it is necessary to carry out corresponding static mechanical performance tests on these bushes or bushing assemblies. The current bushing testing methods mainly have the following deficiencies:

1. Compared with the bushing, the fixture lacks versatility. For different bushing types, it is necessary to make corresponding fixtures;

2. The fixture lacks versatility relative to the measurement direction. The existing fixtures can only be tested for different mechanical directions (such as axial or radial). The same bushing needs to develop multiple sets of fixtures to measure different directions;

3. Compared with the test device, the fixture lacks versatility. Generally, the test device has different work surfaces. For example, the work table is a clamping device or a T-slot structure. the fixture;

4. It is impossible to test the bushing assembly as a whole, and only a single bushing can be tested. When measuring the bushing assembly, it is necessary to disassemble the assembly, which is time-consuming and laborious, and it is impossible to truly reproduce the bushing assembly product mechanical properties.

These all lead to a large number of fixtures, a long manufacturing cycle, a long test cycle, and high fixture processing costs.

Utility model content

The utility model aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. For this reason, the utility model proposes a bush test tool, which has high versatility.

The bushing test tool according to the embodiment of the present invention includes: a base, a chute is arranged on the base; two clamping pieces, the two clamping pieces are arranged in the chute and opposite to Slidable chute; bushing holder for securing the bushing, which can be mounted horizontally or vertically between the two clamps for bushing axial testing or radial testing .

According to the bush test tooling of the embodiment of the present invention, the bush test tool can be used to realize both the axial test test of the bush and the radial test test of the bush, and the bush test tool has high versatility , thereby reducing the number of bushing test fixtures, thereby reducing the processing cost of the bushing test fixtures, and at the same time helping to reduce the bushing test cycle.

According to some embodiments of the present utility model, an axial test fixing hole is provided on the bush fixing seat, and the axial test fixing hole corresponds to the fixing holes on the two clamping pieces, so that the The bushing holder is fixed between the two clamping pieces.

According to some embodiments of the present utility model, the base includes: a base plate, a guide rail and a lower fixing member, the guide rail is fixed on the base plate and defines the chute, and the lower fixing member is fixed on the base plate . The bushing test tool can be fixed on the test device by using the lower fixing part, and then the bushing test can be carried out.

Optionally, the lower fixing member includes: T-shaped bolts and nuts, and the rods of the T-shaped bolts pass through the bottom plate and cooperate with the nuts. For the test device whose workbench is a T-slot structure, the bushing test fixture can be fixedly connected with the test device through T-shaped bolts and nuts, thus ensuring the accuracy of the test results.

Optionally, the lower fixing member includes: a lower fixing clamping bolt and a lower fixing clamping nut located at the center of the bottom plate, the lower fixing clamping bolt is fixed on the bottom plate, and the lower fixing clamping nut Fitted on the lower fixed clamping bolt, for the test device whose workbench is the clamping device, the bushing test tooling can be fixedly connected with the test device through the lower fixed clamping bolt and the lower fixed clamping nut, thereby The accuracy of the test results is guaranteed.

According to some embodiments of the present invention, the clamping member includes: a vertical plate and a sliding block, and the sliding block is fixed on both sides of the vertical plate and fits in the slide groove.

Further, the vertical plate includes: a wedge plate and a clamping plate, the wedge plate corresponds to the sliding block, the clamping plate is fixed on the inner side of the wedge plate and is suitable for contacting the bushing The fixed seat is fixed. By replacing different clamping plates, the fixing requirements of different bushings can be met, thereby enhancing the versatility of the bushing test tool for bushings of different specifications.

According to some embodiments of the present invention, the bush fixing seat includes: a seat body and an adjusting bolt, the seat body has a bush installation hole and a notch, and the notch communicates with the bush installation hole and has a diameter of Penetrating through the seat body, the adjusting bolts are threaded on both sides of the notch. By tightening or loosening the adjusting bolt, the size of the gap can be adjusted, thereby changing the tightness of the fit between the bush installation hole and the bush.

According to some embodiments of the present utility model, the bushing test tool further includes: an upper connection piece on equipment, when the bushing fixing base is horizontally installed between the two clamping pieces, the upper connection piece on the equipment It is installed above the bushing, thereby ensuring that the center of the bushing is aligned with the center of the test device.

Further, the bush test tool also includes: a lower limit bolt and a limit block, the lower limit bolt is installed under the bush, and the limit block is installed on the lower limit bolt, by This ensures that the bush cannot escape from the bush fixing seat, thereby ensuring the smooth progress of the test test.

Description of drawings

Figure 1 is a schematic diagram of the bushing test tool for axial testing when the lower fixing member is a T-bolt;

Figure 2 is a schematic diagram of the bushing test fixture for radial testing when the lower fixing member is a T-bolt;

Fig. 3 is a schematic diagram of the bushing test tool for axial testing when the lower fixture is a clamping device;

Figure 4 is a schematic diagram of the bushing test tool for radial testing when the lower fixture is a clamping device;

Figure 5 is a schematic diagram of the installation of the guide rail and the bottom plate;

Figure 6 is a perspective view of two clips;

Fig. 7 is a schematic diagram of the installation of two clamping parts in the chute;

Fig. 8 is an assembly drawing of the bush fixing seat and the bush or the bush assembly;

Fig. 9 is a schematic diagram of the seat body;

Figure 10 is a schematic diagram of the bushing fixing clip;

Fig. 11 is a left view of the bushing test tool for axial testing when the lower fixing member is a T-bolt;

Fig. 12 is a left side view of the guide rail and the bottom plate.

Reference signs:

Bushing test tool 10, base 1, bottom plate 11, U-shaped groove 111, chute 112, guide rail 12, vertical wall 121, top wall 122, lower fixing piece 13, T-shaped bolt 131, nut 132, lower fixing clamping bolt 133 , Lower fixing clamping nut 134, first positioning pin 14, first fixing bolt 15, bolt 16, clamping piece 2, vertical plate 21, wedge plate 211, clamping plate 212, fixing hole 2121, tapered bolt 2122 , sliding block 22, second positioning pin 23, second fixing bolt 24, bushing fixing seat 3, seat body 31, bushing installation hole 311, notch 312, axial test fixing hole 313, adjusting bolt 32, ejector Bolt 33, connecting piece 4 on equipment, connecting bolt 41 on equipment, connecting nut 42 on equipment, lower limit bolt 5, limit block 6, fixing bolt 7, radial fixing nut 8.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "axial", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear" ", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer" and other indicated orientations or positional relationships are based on the orientations or positions shown in the drawings The positional relationship is only for the convenience of describing the present utility model and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components . Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The bush testing tool 10 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1-12 .

Referring to Fig. 1-Fig. 4 and Fig. 8, the bush testing tool 10 according to the embodiment of the present invention may include a base 1, a clamping part 2 and a bush fixing seat 3.

A sliding slot 112 is provided on the base 1 , and the clamping member 2 is adapted to be installed in the sliding slot 112 .

The number of clamping pieces 2 can be two, and the two clamping pieces 2 are relatively arranged in the chute 112, and the two clamping pieces 2 are respectively slidable relative to the chute 112, thus the two clamping pieces 2 can be changed. the distance between. The bush fixing seat 3 is adapted to be clamped between two clamping pieces 2 . When the size of the bush fixing seat 3 is different, the bush fixing seat 3 can be fixed between the two clip parts 2 only by changing the distance between the two clip parts 2 .

The bushing fixing seat 3 is used for fixing the bushing, and the bushing fixing seat 3 can be installed between the two clamping parts 2 horizontally or vertically for axial or radial testing of the bushing. In other words, when the bushing holder 3 is horizontally installed between the two clamping parts 2, as shown in Fig. When the bushing fixing base 3 is installed vertically between the two clamping parts 2, as shown in Fig. 2 and Fig. 4, the bushing testing tool 10 can be used to carry out the radial test of the bushing. As a result, the axial test or the radial test of the bush can be completed by using the same set of bushing test tooling 10 , without having to separately manufacture the axial special tooling and the radial special tooling. The bush test tool 10 of the present utility model has higher versatility with respect to the measuring direction (such as axial or radial direction), which is beneficial to save the development cost of the bush test tool 10, and at the same time produce a set of bush test tool 10, Two kinds of test tests (ie, axial test test or radial test test) can be carried out, which is beneficial to reduce the test cycle of the bushing.

According to the bush test tool 10 of the embodiment of the present invention, the bush test tool 10 can be used to realize the axial test test of the bush, and the radial test test of the bush can also be realized. The general purpose of the bush test tool 10 High reliability, thereby reducing the number of bushing testing fixtures 10, thereby reducing the processing cost of the bushing testing fixtures 10, and at the same time helping to reduce the testing cycle of the bushing.

Referring to FIG. 1 , and FIG. 6-8 , the bush fixing seat 3 is provided with an axial test fixing hole 313 corresponding to the fixing holes 2121 on the two clamping pieces 2 . The axial test fixing hole 313 may be a threaded hole. When assembling the bushing test fixture 10, the operator passes the fixing bolt 7 through the fixing hole 2121 on the clamping part 2, and screws it into the axial test fixing hole 313, by This can horizontally fix the bush fixing seat 3 between the two clamping parts 2, as shown in Fig. 1 and Fig. 3, so that the bush test fixture 10 can be used to carry out the bush axial test test. Optionally, the axial test fixing holes 313 can be symmetrically distributed on two opposite sides of the bush fixing seat 3, so that the bush fixing seat 3 can be fixed between the two clamping parts 2 from both sides In this way, the fixation is more reliable and the fixation effect is better.

When it is necessary to use the bushing test tool 10 to carry out the radial test of the bushing, as shown in Figure 2 and Figure 4, the operator needs to pass the fixing bolt 7 through the inner hole of the bushing, and tighten the radial fixing nut 8 At the free end of the fixing bolt 7 (ie, the right end in FIG. 2 ), the bush holder 3 is thus vertically fixed between the two holders 2, so as to carry out the radial test test of the bush.

In the above description, the bushing testing tool 10 of the present invention is mainly used to test the bushing. Of course, the bushing assembly can also be tested as a whole by using the bushing testing tool 10 of the present invention. As a result, when testing the bushing assembly, it is not necessary to disassemble the bushing assembly, so that the mechanical characteristics of the bushing assembly product can be truly reproduced, and at the same time, time and effort are saved for the operator.

Referring to Figures 1-4, the base 1 may include a base plate 11, a guide rail 12 and a lower fixing member 13, and the guide rail 12 is fixed on the base plate 11. Specifically in conjunction with Figure 5, it can be seen that the number of guide rails 12 may be two, and the guide rail 12 A chute 112 is defined between the bottom plate 11, the guide rail 12 is in an inverted “L” shape and may include a vertical wall 121 and a top wall 122, the vertical walls 121 of the two guide rails 12 are fixed to the bottom plate 11, and the top walls 122 of the two guide rails 12 are connected to the top wall 122. A sliding slot 112 is defined between the base plates 11 . In a specific embodiment, as shown in FIG. 7 , multiple first positioning pins 14 can be used to position the guide rail 12 on the correct position of the bottom plate 11, thereby helping to ensure the parallelism of the two guide rails 12, and then using multiple Two bolts 16 fix the guide rails 12 on the base plate 11, thereby preventing the two guide rails 12 from moving relative to each other during the test and affecting the accuracy of the test results, and also ensuring that during the storage of the bushing test fixture 10, The guide rail 12 will not produce deformation and relative positional movement. Specifically, as shown in FIG. 12 , a counterbore is provided on the bottom surface of the bottom plate 11 , and the bolt 16 passes through the counterbore and is screwed into the guide rail 12 , thereby fixing the guide rail 12 on the bottom plate 11 .

Further, the lower fixing part 13 is fixed on the bottom plate 11 , and the bushing testing fixture 10 is fixedly connected with the testing device through the lower fixing part 13 .

Referring to FIGS. 1-2 and 11 , the lower fixing member 13 may include a T-shaped bolt 131 and a nut 132 , and the stem of the T-shaped bolt 131 passes through the bottom plate 11 and then cooperates with the nut 132 . Specifically, a plurality of U-shaped grooves 111 are opened on the edge of the bottom plate 11, and the stems of the T-shaped bolts 131 pass through the U-shaped grooves 111 to cooperate with the nuts 132, thereby allowing quick installation without removing the nuts 132. Or disassemble the T-bolt 131, which further saves the operator's assembly time and energy. For a test device with a T-shaped groove structure on the workbench, the bushing test fixture 10 shown in Figures 1-2 can be fixedly connected with this test device. In the groove, tighten the nut 132, so that the bushing test tool 10 can be fixed on the test device to prevent the relative displacement of the bottom plate 11 relative to the test device during the test process, thereby ensuring the accuracy of the test results . Optionally, the number of U-shaped grooves 111 may be six, and they are symmetrically distributed on two sides of the bottom plate 11 .

3-4, the lower fixing member 13 may include a lower fixing clamping bolt 133 and a lower fixing clamping nut 134. Optionally, the lower fixing clamping bolt 133 and the lower fixing clamping nut 134 are located on the bottom plate 11 In the center, further, the lower fixed clamping bolt 133 is threadedly fixed on the bottom plate 11 , and the lower fixed clamping nut 134 fits on the lower fixed clamping bolt 133 . For the test device where the workbench is a clamping device, the bushing test fixture 10 shown in Figures 3-4 can be fixedly connected with this test device. Tighten the device, and then tighten the lower fixed clamping nut 134, so that the bushing test tool 10 can be fixed on the test device, through the fixing and limiting of the lower fixed clamping nut 134, the test can be effectively prevented. During the process, the bottom plate 11 generates a relative displacement relative to the test device, thereby ensuring the accuracy of the test results.

Only by changing the specific form of the lower fixing part 13, the bushing test tool 10 can be applied to different types of test devices, thus enhancing the versatility of the bush test tool 10 to the test devices and helping to reduce the bushing The manufacturing and processing cost of the test fixture 10 is reduced, and the manufacturing cycle of the bushing test fixture 10 is reduced.

5-7, the clamping member 2 includes a vertical plate 21 and a sliding block 22, the sliding block 22 is fixed on both sides of the vertical plate 21, and the sliding block 22 in FIG. chute 112 to form the structure shown in FIG. 7 . The sliding block 22 is in an "L" shape and leans against the bottom side of the vertical plate 21. Optionally, the number of the vertical plates 21 is two, and the number of the sliding blocks 22 is four. Each vertical plate 21 There are sliding blocks 22 attached to both sides of the two sides. When the clamping member 2 slides along the chute 112, the sliding block 22 is in direct contact with the chute 112. The vertical plate 21 is clamped on the inside of the sliding block 22 and connected slide together along the sliding groove 112 to change the distance between the two clamping pieces 2 .

Further, as shown in FIG. 6 and FIG. 7, the vertical plate 21 may include a wedge plate 211 and a clamping plate 212, the wedge plate 211 corresponds to the sliding block 22, and optionally, a gap between the sliding block 22 and the wedge plate 211 It can be positioned by the second positioning pin 23 first, and then fixedly connected by the second fixing bolt 24, and the number of the second positioning pin 23 and the second fixing bolt 24 can be multiple. The clamping plate 212 is fixed on the inner side of the wedge plate 211 and is suitable for fixing with the bushing holder 3. In a specific embodiment, the clamping plate 212 is provided with a plurality of tapered holes through which a plurality of tapered bolts 2122 pass. taper holes, so that the clamping plate 212 is fixed on the inside of the wedge plate 211, and a fixing hole 2121 is formed on the top of each clamping plate 212, and the fixing bolt 7 passes through the fixing hole 2121, thereby fixing the bushing holder 3 Between the two clamping plates 212 .

Optionally, the clamping plate 212 is a serialized clamping plate 212. According to different bushings and inner hole sizes of the bushing assembly, the clamping plate 212 of different sizes is processed, and the top of the clamping plate 212 is provided with corresponding dimensions. The fixing holes 2121 of the different clamping plates 212 are replaced to meet the fixing requirements of bushings and bushing assemblies of different specifications, thereby enhancing the universality of the bushing test tool 10 for bushings and bushing assemblies of different specifications. sex.

8 and 9, the bushing holder 3 includes a seat body 31 and an adjusting bolt 32. The seat body 31 has a bushing installation hole 311 and a notch 312. The notch 312 communicates with the bushing installation hole 311 and radially Through the seat body 31 , the adjusting bolt 32 is threaded on both sides of the notch 312 . By tightening or loosening the adjusting bolt 32, the size of the notch 312 can be adjusted, thereby changing the tightness of the fit between the bushing installation hole 311 and the bushing or bushing assembly, thereby ensuring that the bushing or bushing assembly There is no relative rotation with the bushing holder 3, and it is ensured that the bushing or the bushing assembly can be disengaged from the bushing holder 3 after the test is finished. Further, a jacking bolt 33 is also arranged on the bush fixing seat 3, and the number of jacking bolts 33 can be two, and the jacking bolt 33 is screwed inward, so that the bushing or the bushing assembly can be removed from the bushing. Remove it from the holder 3.

It should be pointed out that the seat body 31 can also be a serialized seat body 31, and seat bodies 31 of different sizes are processed according to the outer diameter of different bushings and bushing assemblies to meet the requirements of the fixed bushing and bushing assembly. As a result, the modular design is realized, thereby further improving the versatility of the bushing test tool 10.

In a specific embodiment, a bushing fixing clip can also be provided between the bushing or bushing assembly and the bushing installation hole 311. As shown in FIG. 10, the bushing fixing clip is configured as a ring with an opening. The structure, when the bushing clamp is squeezed by external force, the diameter of the bushing clamp can be reduced, so as to further clamp the bushing or the bushing assembly. In this way, when the specifications of the bushing or bushing assembly are different, the bushing or bushing assembly of different specifications can be tested only by replacing the bushing fixing clip, thereby further improving the bushing test tool 10 versatility. At the same time, the bushing clamp can assist in clamping the bushing or the bushing assembly, preventing the bushing or the bushing assembly from rotating relative to the bushing holder 3 during the test and affecting the test. After the test is over, loosen the adjusting bolt 32, and tighten the two jacking bolts 33, the bushing clamp, the bushing or the bushing assembly can be withdrawn from the bushing holder 3, the principle of disassembly is simple and the operation is convenient.

Referring to FIGS. 1-4 , the bushing test tool 10 may also include an equipment connection 4 , specifically, the equipment connection 4 includes an equipment connection bolt 41 and an equipment connection nut 42 . When the bush fixing seat 3 is horizontally installed between the two clamping parts 2, as shown in Fig. 1 and Fig. 3, the connecting part 4 on the equipment is installed above the bush. When the bush fixing seat 3 is vertically installed between the two clamping parts 2, as shown in Fig. 2 and Fig. Test inside the fixing hole 313. The upper end of the connecting piece 4 on the equipment is screwed into the fixed clamping device (not shown in the figure) on the equipment. By setting the connecting piece 4 on the equipment, the center of the bushing and the center of the testing device can be ensured. Then the first fixing bolt 15 is used to lock the clamping part 2 at the centering position, thereby ensuring that the clamping part 2 will not be displaced relative to the base plate 11 during the test, thus ensuring the accuracy of the test results.

Referring to FIG. 1 , the bushing testing tool 10 may further include a lower limit bolt 5 and a limit block 6 , the lower limit bolt 5 is installed under the bushing, and the limit block 6 is installed on the lower limit bolt 5 . Specifically, the lower stop bolt 5 tightly abuts the stop block 6 on the lower surface of the seat body 31 of the bushing holder 3, so that the bushing cannot escape from the bushing holder 3 axially downwards, Thereby ensuring the smooth progress of the axial test test. Similarly, the limit block 6 can also be a serialized bush limit block 6, and the limit blocks of different sizes and thicknesses are processed according to different bushes and bush assembly sizes, so as to meet the bushing test limit requirements.

The installation process of the bushing test tool 10 for axial testing will be described in detail below by taking Fig. 1 and Fig. 3 as examples.

(1) First, in combination with the workbench structure of the test device, select the specific form of the lower fixing member 13, select the fixing method of the T-shaped bolt 131, the nut 132 or the lower fixing clamping bolt 133, and the lower fixing clamping nut 134 to fix FIG. 7 structure, loosen a plurality of first fixing bolts 15, and move the structure shown in Figure 6 along the chute 112 to both sides;

(2) As shown in Figure 8, fix the bushing or the bushing assembly through the bushing fixing clamp, the seat body 31, and the adjusting bolt 32;

(3) Connect and fix the lower limit bolt 5, the limit block 6 and the structure shown in Figure 8 with the connecting bolt 41 on the equipment;

(4) Tighten the connecting bolt 41 on the device into the fixed clamping device (not shown in the figure) on the device, fix and limit the position through the connecting nut 42 on the device, so as to prevent the relative displacement of the bottom plate 11 relative to the plane of the test device during the test process, Ensure the accuracy of the testing process;

(5) Translate the structure shown in FIG. 6 along the chute 112, and the vertical plates 21 on both sides are attached to the bushing holder 3 respectively, and the structure shown in FIG. 8 is fixed by two fixing bolts 7;

(6) Through a plurality of first fixing bolts 15 , fix the structure shown in FIG. 6 sequentially, and complete the assembly of the bushing test tool 10 when the axial test is completed above.

Taking Fig. 1 and Fig. 3 as examples below, the disassembly process of the bushing test tool 10 after the axial test is completed will be described in detail.

(1) First restore the test device to its original position;

(2) Loosen the first fixing bolts 15 in turn;

(3) Remove the two fixing bolts 7, gently push the structure shown in Figure 6 to both sides, so that the clamping part 2 moves to the appropriate position on both sides along the chute 112;

(4) Loosen the connecting nut 42 on the equipment, the connecting bolt 41 on the equipment and the lower limit bolt 5, remove the limit block 6, and then disassemble to the structure shown in Figure 8, that is, the bush fixing seat 3 and the bush or bush assembly of sets of assemblies;

(5) Loosen the adjusting bolt 32 on the bushing fixing seat 3, and tighten the two jacking bolts 33, so that the bushing or bushing assembly, the bushing fixing clip and the seat body 31 of the bushing fixing seat 3 Separate, loosen the two jacking bolts 33, and restore the gap 312 to the design state;

(6) dismantle nut 132 and T-shaped bolt 131 or lower fixed clamping nut 134 and lower fixed clamping bolt 133, so that the structure of Figure 7 is separated from the test device;

(7) Put all the parts of the disassembled bushing test tool 10 in the fixed-point placement area, and the test is completed.

Taking Fig. 2 and Fig. 4 as examples below, the installation process of the bushing testing tool 10 for radial testing will be described in detail.

(1) First, in combination with the workbench structure of the test device, select the specific form of the lower fixing member 13, select the fixing method of the T-shaped bolt 131, the nut 132 or the lower fixing clamping bolt 133, and the lower fixing clamping nut 134 to fix FIG. 7 structure, loosen a plurality of first fixing bolts 15, and move the structure shown in Figure 6 along the chute 112 to both sides;

(2) As shown in Figure 8, fix the bushing or the bushing assembly through the bushing fixing clamp, the seat body 31, and the adjusting bolt 32;

(3) The structure shown in Figure 8 is connected and fixed with the connecting bolt 41 on the equipment;

(4) Tighten the connecting bolt 41 on the device into the fixed clamping device (not shown in the figure) on the device, fix and limit the position through the connecting nut 42 on the device, so as to prevent the relative displacement of the bottom plate 11 relative to the plane of the test device during the test process, Ensure the accuracy of the testing process;

(5) Translate the structure shown in FIG. 6 along the chute 112, and the vertical plates 21 on both sides are attached to the bushing holder 3 respectively, and the structure shown in FIG. 8 is fixed by the fixing bolt 7 and the radial fixing nut 8;

(6) Through a plurality of first fixing bolts 15, the structure shown in FIG. 6 is fixed sequentially, and the assembly of the bushing test tool 10 during the radial test is completed above.

Taking Fig. 2 and Fig. 3 as examples below, the disassembly process of the bushing test tool 10 after the radial test is completed will be described in detail.

(1) First restore the test device to its original position;

(2) Loosen the first fixing bolts 15 in turn;

(3) Disassemble the radial fixing nut 8 and the fixing bolt 7, and gently push the structure shown in Figure 6 to both sides, so that the clamping part 2 moves to a suitable position on both sides along the chute 112;

(4) Loosen the connecting nut 42 on the equipment and the connecting bolt 41 on the equipment, and then disassemble to the structure shown in Figure 8, that is, the assembly of the bushing holder 3 and the bushing or the bushing assembly;

(5) Loosen the adjusting bolt 32 on the bushing fixing seat 3, and tighten the two jacking bolts 33, so that the bushing or bushing assembly, the bushing fixing clip and the seat body 31 of the bushing fixing seat 3 Separate, loosen the two jacking bolts 33, and restore the gap 312 to the design state;

(6) dismantle nut 132 and T-shaped bolt 131 or lower fixed clamping nut 134 and lower fixed clamping bolt 133, so that the structure of Figure 7 is separated from the test device;

(7) Put all the parts of the disassembled bushing test tool 10 in the fixed-point placement area, and the test is completed.

The test method when using the bush test tool 10 of the embodiment of the present invention is described below.

Set the loading speed, initial position and force size (or stroke size) of the test device, pre-cycle 3 times, and set to zero, record the measurement curve of the fourth test, and set the value range.

In summary, using the bushing test tool 10 of the present utility model can realize the axial test or radial test of bushes and bush assemblies of different specifications, and only by changing the specific structure of the lower fixing part 13, it is convenient The bushing testing tool 10 can be applied to different testing devices, so it can be seen that the bushing testing tooling 10 has high versatility, which is conducive to reducing the number of bushing testing tools 10, thereby reducing the bushing testing tooling. 10 machining cost, while helping to reduce the test cycle of the bushing or bushing assembly.

In the description of this specification, descriptions such as "some embodiments" or "examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention . In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. A bushing test tool, characterized in that, comprising: a base, the base is provided with a chute; Two clamping pieces, the two clamping pieces are relatively arranged in the chute and are respectively slidable relative to the chute; A bushing holder for fixing the bushing, which can be installed horizontally or vertically between the two clamps for bushing axial testing or radial testing. 2. The bush testing tool according to claim 1, characterized in that, the bush fixing seat is provided with an axial test fixing hole, and the axial test fixing hole is connected with the two clamping parts. correspond to the fixing holes. 3. The bushing test tool according to claim 1, wherein the base comprises: floor; a guide rail, the guide rail is fixed on the base plate and defines the slide groove; The lower fixing part is fixed on the bottom plate. 4 . The bushing testing tool according to claim 3 , wherein the lower fixing member comprises: a T-shaped bolt and a nut, and the rod of the T-shaped bolt passes through the bottom plate and cooperates with the nut. 5 . 5 . The bushing test tool according to claim 3 , wherein the lower fixing member comprises: a lower fixing clamping bolt and a lower fixing clamping nut located at the center of the bottom plate, and the lower fixing clamping bolt Fixed on the bottom plate, the lower fixed clamping nut fits on the lower fixed clamping bolt. 6. The bushing testing tool according to claim 1, wherein the clamping member comprises: vertical board; a sliding block, the sliding block is fixed on both sides of the vertical plate and fits in the sliding slot. 7. The bushing test tool according to claim 6, wherein the vertical plate comprises: a wedge plate and a clamping plate, the wedge plate corresponds to the sliding block, and the clamping plate is fixed It is on the inner side of the wedge plate and is suitable for being fixed with the bush fixing seat. 8. The bush testing tool according to claim 1, wherein the bush fixing seat comprises: A seat body, the seat body has a bushing installation hole and a notch, the notch communicates with the bushing installation hole and radially penetrates the seat body; an adjusting bolt, and the adjusting bolt is screw-fitted on both sides of the notch. 9. The bushing testing tool according to claim 1, further comprising: a connecting piece on the equipment, when the bushing fixing base is horizontally installed between the two clamping pieces, the equipment The upper connecting piece is installed above the bushing. 10. The bush testing tool according to claim 9, further comprising: a lower limit bolt and a limit block, the lower limit bolt is installed under the bush, and the limit block is installed on the lower limit bolt.