Positioning fixture for bucket tooth detection

Abstract

The utility model belongs to the technical field of bucket tooth detection equipment, and particularly relates to a positioning fixture for bucket tooth detection, which comprises a base, a clamping mechanism, two positioning blocks and an elastic adjusting mechanism, a positioning groove is formed in the base; the clamping mechanism is arranged on the base and can clamp and release the bucket teeth in the positioning grooves. The two positioning blocks are both arranged in the positioning groove, the two positioning blocks can get close to each other and get away from each other in the first direction, and a positioning space allowing the bucket teeth to be clamped in is formed between the two positioning blocks; the two positioning blocks can be attached to the two opposite side walls of the bucket tooth through the elastic adjusting mechanism. Compared with the prior art, before the positioning clamp clamps the bucket tooth, the bucket tooth can be automatically positioned in a self-adaptive mode, then the bucket tooth is clamped and fixed through the clamping mechanism, clamping operation is easy, handheld positioning of operators is not needed, and the labor intensity of the operators is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bucket tooth detection equipment technical field, especially relate to a positioning fixture for bucket tooth detection. BACKGROUND

[0002] Bucket tooth is the key component of excavator, loader and other engineering machinery, and its impact resistance is one of the important indicators for evaluating its quality and durability. Before testing and detecting the bucket tooth, the bucket tooth needs to be clamped and fixed to avoid moving during the test and affecting the test results;

[0003] The patent document with publication number CN213632997U discloses a test device for the strength of the bucket tooth of an excavator. In this technology, the first threaded rod, the second threaded rod, the two groups of threaded sleeves and the two groups of U-shaped plates are cooperated to clamp and fix the bucket tooth of different specifications. However, when clamping the bucket tooth, the operator needs to manually position the bucket tooth or first fix the bucket tooth to one of the U-shaped plates and then rotate the first threaded rod and the second threaded rod to close the two groups of U-shaped plates to complete the fixation of the bucket tooth. The operation is relatively complicated, and the position of the bucket tooth after each clamping is quite different. UTILITY MODEL CONTENT

[0004] The utility model aims at the above-mentioned technical problem, provides a positioning fixture for bucket tooth detection. Before clamping the bucket tooth, the positioning fixture can automatically position the bucket tooth adaptively, and then clamp and fix the bucket tooth through the clamping mechanism. The clamping operation is simple, and the operator does not need to manually position the bucket tooth, thereby reducing the labor intensity of the operator.

[0005] Therefore, the utility model provides a positioning fixture for bucket tooth detection, which comprises:

[0006] A base is provided with a positioning groove;

[0007] Two positioning blocks are arranged in the positioning groove, and the two positioning blocks can approach and move away from each other in the first direction. A positioning space for clamping the bucket tooth is formed between the two positioning blocks;

[0008] An elastic adjusting mechanism can drive the two positioning blocks to approach each other in the first direction;

[0009] A clamping mechanism is arranged on the base and can clamp and release the bucket tooth in the positioning groove in the second direction.

[0010] In the technical solution, when the bucket tooth needs to be clamped, the bucket tooth is first put into the positioning groove along the third direction, and in this process, the bucket tooth contacts the two positioning blocks in the third direction, the two positioning blocks are away from each other in the first direction according to the width of the bucket tooth in the first direction, so that the bucket tooth can enter the positioning space, when the bottom of the bucket tooth contacts the bottom surface of the positioning groove, the elastic adjusting mechanism drives the two positioning blocks to approach each other, and finally the two positioning blocks contact the side wall of the bucket tooth in the first direction, thereby completing the positioning of the bucket tooth, and then the clamping mechanism clamps the positioned bucket tooth in the second direction, so that the test equipment can test and detect the bucket tooth.

[0011] In the above technical solution, further, the elastic adjusting mechanism comprises:

[0012] Two groups of sliding rods, the two groups of sliding rods are respectively connected with the two positioning blocks, and the two groups of sliding rods are slidably arranged in the positioning groove in the first direction;

[0013] Two groups of springs, the two groups of springs are respectively sleeved on the two groups of sliding rods, one end of the spring is connected with the positioning block, and the other end of the spring is connected with the side wall of the positioning groove.

[0014] In the above technical solution, further, the two sides of the positioning groove are provided with mounting grooves, and a group of connecting grooves is arranged on the opposite two side walls of the positioning groove, the two groups of connecting grooves are communicated with the two mounting grooves respectively, the two groups of sliding rods are slidably arranged in the two groups of connecting grooves respectively, and a limiting block is arranged in each of the two mounting grooves, and the ends of the two groups of sliding rods away from the corresponding positioning blocks extend into the two mounting grooves and are connected with the two limiting blocks respectively.

[0015] In the above technical solution, further, the top of the side wall, where the two positioning blocks approach each other, is provided with a round corner or a chamfer.

[0016] In the above technical solution, further, the clamping mechanism comprises:

[0017] Two fixed seats, the two fixed seats are arranged on the two sides of the positioning groove, and screw holes are arranged on the fixed seats;

[0018] Two clamping blocks, the two clamping blocks are arranged on the sides of the two fixed seats close to the positioning groove;

[0019] Two screw rods, the two screw rods are respectively screwed with the two screw holes, one end of each of the two screw rods is rotatably connected with the two clamping blocks, and the other end of each of the two screw rods is provided with a hand wheel;

[0020] Two groups of guide rods, the two groups of guide rods are arranged on the two clamping blocks, and the two groups of guide rods are slidably connected with the two fixed seats in the axial direction of the screw rod.

[0021] The beneficial effects of the utility model are:

[0022] 1. By setting a positioning groove on the base and placing two positioning blocks in the positioning groove to position the bucket teeth, the bucket teeth can be positioned first and then clamped, reducing the difficulty of clamping the bucket teeth. In addition, the two positioning blocks can be adjusted in the first direction. The elastic adjustment mechanism can drive the two positioning blocks to move closer to each other in the first direction, so that the two positioning blocks can adaptively position themselves according to the specifications of the bucket teeth. This ensures that the position difference of bucket teeth of different specifications is not significant after clamping, thus improving the accuracy of the test.

[0023] 2. By designing the elastic adjustment mechanism as a combination of two sets of sliding rods and two sets of springs, during the process of the bucket teeth entering the positioning space, the bucket teeth will push the two positioning blocks away from each other. During this process, the springs are compressed and accumulate elastic force. When the bottom surface of the bucket teeth contacts the bottom surface of the positioning groove, the two sets of springs give the two positioning blocks a force towards the bucket teeth, so that the two positioning blocks contact the side wall of the bucket teeth, thereby achieving precise positioning of the bucket teeth.

[0024] 3. By setting installation slots on both sides of the positioning slot, and setting two sets of connecting slots that communicate with the two installation slots on the positioning slot, the sliding rod is set in the connecting slot, and the limiting block is set in the installation slot to connect with the sliding rod. In this way, when no bucket tooth is put into the positioning slot, the two limiting blocks can limit the position of the two sets of sliding rods, so that a certain gap can be left between the two positioning blocks. This makes it easy for the bucket tooth to enter the positioning space smoothly without the need for the worker to directly push the positioning block when positioning the bucket tooth. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention used in combination with the test equipment and without clamping the bucket teeth.

[0027] Figure 2 This is a schematic diagram of the structure of the present invention used in combination with the test equipment and in the state of clamping the bucket teeth.

[0028] Figure 3 This is a three-dimensional structural diagram of the positioning clamp in this utility model.

[0029] Figure 4 This is a top view of the positioning clamp in this utility model.

[0030] Figure 5 for Figure 4Fig. 2 is a schematic view of a cross-sectional structure in the A-A direction.

[0031] Fig. 2 is a schematic view of a cross-sectional structure in the A-A direction.

[0032] 1, base; 101, positioning groove; 2, clamping mechanism; 201, fixed seat; 2011, screw hole; 202, clamping block; 203, screw rod; 204, hand wheel; 205, guide rod; 3, positioning block; 4, elastic adjusting mechanism; 401, sliding rod; 402, spring; 403, mounting groove; 404, connecting groove; 405, limiting block; X, first direction; Y, third direction; 100, test equipment; 200, bucket tooth. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in 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. Based on the embodiments in 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.

[0034] In the description of the present application, it should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those skilled in the art may not be discussed in detail, but should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] The positioning clamp of the present application is used in cooperation with the bucket tooth 200 test equipment 100. The test equipment 100 cooperated with the positioning clamp is generally an impact resistance test equipment 100, such as Figures 1-2As shown, the positioning clamp is arranged on one side of the test equipment 100 in the third direction Y, after the bucket tooth 200 is clamped on the positioning clamp, the bucket tooth 200 faces the test equipment 100, at this time, the test equipment 100 can be started to test and detect the bucket tooth 200, since the utility model mainly improves the positioning clamp, and the structure and working principle of the test equipment 100 are well known to those skilled in the art, therefore, in the subsequent embodiment, the structure and working principle of the test equipment 100 are not described, only the structure and working principle of the positioning clamp are described.

[0036] Embodiment 1

[0037] The embodiment provides a positioning clamp for bucket tooth detection, which comprises a base 1, two positioning blocks 3, an elastic adjusting mechanism 4 and a clamping mechanism 2.

[0038] Please refer to Figure 3 The base 1 is provided with a positioning groove 101, and the positioning groove 101 has a certain depth in the third direction Y.

[0039] The two positioning blocks 3 are arranged in the positioning groove 101, and the two positioning blocks 3 can approach and move away from each other in the first direction X, and the two positioning blocks 3 form a positioning space for clamping the bucket tooth 200.

[0040] The elastic adjusting mechanism 4 can drive the two positioning blocks 3 to approach each other in the first direction X, after the bucket tooth 200 enters the positioning space, the elastic adjusting mechanism 4 can give the two positioning blocks 3 a force towards the bucket tooth 200, so that the two positioning blocks 3 can contact the side wall of the bucket tooth 200, and the positioning of the bucket tooth 200 is realized.

[0041] The clamping mechanism 2 is arranged on the base 1 and can clamp and release the bucket tooth 200 in the positioning groove 101 in the second direction, and the structure capable of clamping and releasing the bucket tooth 200 along a straight line in the prior art can be used as the clamping mechanism 2 in the embodiment.

[0042] The top of the side wall of each of the two positioning blocks 3 in the embodiment is provided with a round corner or a chamfer, and the two positioning blocks 3 have a certain spacing in the initial state, and the spacing is smaller than the width of the general bucket tooth 200. When the bucket tooth 200 contacts the two positioning blocks 3, the bucket tooth 200 will first contact the round corner or the chamfer, so that the bucket tooth 200 can push the two positioning blocks 3 in the direction away from each other during the process of moving into the positioning groove 101 along the third direction Y, so that the bucket tooth 200 can enter the positioning space. When the bottom of the bucket tooth 200 contacts the bottom surface of the positioning groove 101, the elastic adjusting mechanism 4 drives the two positioning blocks 3 to move close to each other, and finally the two positioning blocks 3 contact the side wall of the bucket tooth 200 in the first direction X, thereby completing the positioning of the bucket tooth 200. Then, the clamping mechanism 2 clamps the positioned bucket tooth 200 in the second direction, so that the test equipment 100 can test and detect the bucket tooth 200.

[0043] Embodiment 2

[0044] The embodiment further discloses a structure of the elastic adjusting mechanism 4 based on the embodiment 1.

[0045] In the embodiment, the elastic adjusting mechanism 4 comprises two groups of sliding rods 401 and two groups of springs 402,

[0046] Please refer to Figure 4 The two groups of sliding rods 401 are connected with the two positioning blocks 3 respectively, and the two groups of sliding rods 401 are slidingly arranged in the positioning groove 101 in the first direction X. The number of the sliding rods 401 in each group of sliding rods 401 can be one or more. Figure 4 For example, two sliding rods 401 in each group of sliding rods 401 are taken as an example.

[0047] The two groups of springs 402 are sleeved on the two groups of sliding rods 401 respectively. One end of the spring 402 is connected with the positioning block 3, and the other end of the spring 402 is connected with the side wall of the positioning groove 101. When there are multiple sliding rods 401 in each group of sliding rods 401, the spring 402 can be arranged on only one of the sliding rods 401, or the spring 402 can be arranged on each of the sliding rods 401.

[0048] In the initial state, the spring 402 is in a relaxed state, and the spring 402 is squeezed during the process that the bucket tooth 200 contacts the two positioning blocks 3 from the third direction Y and pushes the two positioning blocks 3 away from each other. Thus, the elastic force of the spring 402 can provide a force to the two positioning blocks 3 towards the bucket tooth 200, so that the two positioning blocks 3 can always contact the bucket tooth 200, thereby realizing that the two positioning blocks 3 can contact the bucket tooth 200 to complete the positioning when the bucket tooth 200 of different specifications is positioned.

[0049] Embodiment 3

[0050] The embodiment optimizes the structure of the elastic adjusting mechanism 4 based on the embodiment 2.

[0051] In the embodiment, please refer to Figure 4 Or Figure 5 Both sides of the positioning groove 101 are provided with mounting grooves 403, and the two mounting grooves 403 are distributed at intervals in the first direction X. Please refer to Figure 5 A set of connecting grooves 404 is arranged on each of the two opposite side walls of the positioning groove 101, and the number of the connecting grooves 404 in each set of connecting grooves 404 is the same as the number of the sliding rods 401 in each set of sliding rods 401. The two sets of connecting grooves 404 are in communication with the two mounting grooves 403 respectively, and the two sets of sliding rods 401 are slidingly arranged in the two sets of connecting grooves 404 respectively. Limiting blocks 405 are arranged in the two mounting grooves 403 respectively, and the ends of the two sets of sliding rods 401 away from the corresponding limiting blocks 3 extend into the two mounting grooves 403 and are connected with the two limiting blocks 405 respectively.

[0052] In the embodiment, the limiting blocks 405 are detachably connected with the sliding rods 401, so that the sliding rods 401 and the limiting blocks 405 can be maintained and replaced conveniently.

[0053] In the embodiment, in the initial state, the spring 402 can be in a slightly compressed state, and at this time, the elastic force of the spring 402 can make the limiting blocks 405 tightly contact with the side walls of the mounting grooves 403. In addition, the spring 402 can also give the two limiting blocks 3 and the two sets of sliding rods 401 a pre-tightening force, so that the limiting blocks 3 and the two sets of sliding rods 401 are always in a stressed state and cannot be shifted at will, which can ensure the positioning effect of the positioning clamp and prolong the service life of the positioning clamp.

[0054] Embodiment 4

[0055] The embodiment discloses a structure of the clamping mechanism 2 based on the embodiment 1.

[0056] In the embodiment, the clamping mechanism 2 comprises two fixed seats 201, two clamping blocks 202, two screw rods 203 and two sets of guide rods 205.

[0057] Please refer to Figure 2 The two fixed seats 201 are arranged at two sides of the positioning groove 101 respectively, and the two fixed seats 201 are distributed at intervals in the second direction. The fixed seat 201 is provided with a screw hole 2011 along the second direction.

[0058] The two clamping blocks 202 are arranged on the sides of the two fixed seats 201 close to the positioning groove 101 respectively.

[0059] Two screws 203 are threadedly connected to two screw holes 2011 respectively. One end of each screw 203 is rotatably connected to two clamping blocks 202 respectively. The other end of each screw 203 is equipped with a handwheel 204.

[0060] Two sets of guide rods 205 are respectively set on two clamping blocks 202, and the two sets of guide rods 205 are slidably connected to two fixed seats 201 along the axial direction of the screw 203;

[0061] In this embodiment, the two sets of guide rods 205 can guide the movement of the two clamping blocks 202 respectively, so that the two clamping blocks 202 can move only in the second direction. The rotating handwheel 204 can drive the screw 203 to rotate. The screw 203 cooperates with the screw hole 2011 to drive the clamping blocks 202 to move in the second direction, thereby realizing the clamping and release of the bucket teeth 200 in the second direction.

[0062] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A positioning jig for use in a bucket tooth inspection, characterized by, The utility model relates to a tooth holder, including: The base (1) is provided with positioning groove (101) on the base (1); Two positioning blocks (3) are arranged in the positioning groove (101), and the two positioning blocks (3) can approach and move away from each other in the first direction (X), and the positioning space for the tooth holder (200) is formed between the two positioning blocks (3); The elastic adjusting mechanism (4) can drive the two positioning blocks (3) to approach each other in the first direction (X); The clamping mechanism (2) is arranged on the base (1) and can clamp and release the tooth holder (200) in the positioning groove (101) in the second direction (Y).

2. The positioning fixture for detecting bucket teeth according to claim 1, characterized in that, The elastic adjusting mechanism (4) includes: Two groups of sliding rods (401) are connected with the two positioning blocks (3) respectively, and the two groups of sliding rods (401) are slidably arranged in the positioning groove (101) along the first direction (X); Two groups of springs (402) are sleeved on the two groups of sliding rods (401) respectively, one end of the spring (402) is connected with the positioning block (3), and the other end of the spring (402) is connected with the side wall of the positioning groove (101).

3. A positioning fixture for detecting bucket teeth according to claim 2, characterized in that: Both sides of the positioning groove (101) are provided with mounting grooves (403), and a group of connecting grooves (404) are arranged on the opposite two side walls of the positioning groove (101), the two groups of connecting grooves (404) are communicated with the two mounting grooves (403) respectively, the two groups of sliding rods (401) are slidably arranged in the two groups of connecting grooves (404) respectively, and the two mounting grooves (403) are provided with limiting blocks (405) respectively, and one end of the two groups of sliding rods (401) away from the corresponding positioning block (3) extends into the two mounting grooves (403) and is connected with the two limiting blocks (405) respectively.

4. A positioning fixture for detecting bucket teeth according to claim 1, characterized in that: The top of the side wall of the two positioning blocks (3) approaching each other is provided with a round corner or a chamfer.

5. A positioning fixture for detecting bucket teeth according to claim 1, characterized in that, The clamping mechanism (2) includes: Two fixed bases (201) are arranged on the two sides of the positioning groove (101) respectively, and screw holes (2011) are arranged on the fixed base (201); Two clamping blocks (202) are arranged on the side of the two fixed bases (201) close to the positioning groove (101) respectively; Two screw rods (203) are threadedly connected with the two screw holes (2011) respectively, one end of the two screw rods (203) is rotatably connected with the two clamping blocks (202) respectively, and the other end of the two screw rods (203) is provided with a hand wheel (204); Two groups of guide rods (205) are arranged on the two clamping blocks (202) respectively, and the two groups of guide rods (205) are slidably connected with the two fixed bases (201) along the axial direction of the screw rod (203).

Images