Tool clamp of ring block abrasion testing machine

Abstract

The utility model discloses a work fixture of a ring block wear testing machine, which comprises a fixed part and a lifting part inserted in the fixed part, a fastener for adjusting the position of the lifting part is mounted on the fixed part, and the lifting part comprises a left connecting plate and a right connecting plate which are inserted in the fixed part. The clamp is simple in structure, a sample piece is tightly abutted and fixed through the threaded rod and the adjusting structure, so that the sample piece is stressed in a balanced manner, the balance and fastening of the sample piece are favorably kept, in addition, for samples with different thicknesses, the relative positions of the samples and the sample piece are different, and the grinding crack position is not in the dead center of the clamp, but the threaded rod and the adjusting structure are adopted; the horizontal position of the sample piece can be asymmetrically adjusted, and it is ensured that a grinding crack of the sample piece is located in the center of the sample piece. According to the tool clamp, the size of the sample piece can be reduced to a certain extent, and the tool clamp is simple in structure and convenient, rapid and efficient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of ring-block wear testing machines, in particular to a fixture for a ring-block wear testing machine. Background Art

[0002] Currently, the requirements for the test blocks of ring block testing machines are generally (30×7×6) mm in length, width and height. Therefore, the fixtures of traditional ring block wear testing machines are basically limited to fixed lengths and heights. However, for actual small-sized products, it is not easy to cut the sample to the required size. Generally, the length and height dimensions are difficult to meet the requirements. However, the ring block wear test is widely popular due to its small contact area and small wear marks. Due to its small actual contact area, the actual sample does not need to meet the above requirements. It only needs to ensure sufficient friction area and sufficient clamping size. Therefore, for small-sized products, the practice is often to keep the width unchanged and flexibly cut the appropriate length according to the size of the product.

[0003] At this point, the disadvantages of traditional fixed-size fixtures became apparent. Due to the short length of the sample, the fixture could not be fixed in the length direction. At the same time, for thinner products, the sample could not contact the grinding ring in the height direction. The usual practice is to place a pad underneath to increase the height. If the pad is too thin, it will not contact the grinding ring. If the pad is too thick, it will be difficult to clamp in the length or width direction. Therefore, it is necessary to process pads of different thicknesses for samples of different thicknesses, which is very troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a fixture for a ring block wear testing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixture for a ring block wear testing machine, comprising a fixed part and a lifting part inserted into the fixed part, a fastener for adjusting the position of the lifting part being installed on the fixed part, the lifting part comprising a left connecting plate and a right connecting plate inserted into the fixed part, the left connecting plate and the right connecting plate being respectively installed with a threaded rod and an adjustment structure for fixing the product, and being configured to fix products of different sizes.

[0006] As a further solution of the present invention: the lifting part further includes a second U-shaped block, and two ends of the second U-shaped block are respectively connected to the left connecting plate and the right connecting plate.

[0007] As a further solution of the present invention: the fixing portion includes a fixing body and a first U-shaped block fixed to the end face of the fixing body, the end face of the first U-shaped block is threadedly connected with a fastener, and the fixing body has a circular through hole for fixing its position.

[0008] As a further solution of the present invention: two cavities are opened in the fixed body, and the two cavities are respectively for the left connecting plate and the right connecting plate to pass through, and the outer circumferences of the left connecting plate and the right connecting plate are respectively provided with springs whose ends are connected to the second U-shaped block and the inner wall of the cavity.

[0009] As a further solution of the present invention: the adjustment structure includes a movable rod inserted into the upper right of the connecting plate, the end of the movable rod adjacent to the threaded rod is detachably equipped with a U-shaped clamp, and a pin is inserted into the upper right of the connecting plate and passes through the right connecting plate and the movable rod.

[0010] As a further solution of the present invention: a plurality of through holes adapted to the outer diameter of the latch are evenly distributed on the movable rod, a first through hole for the movable rod to pass through is opened in the longitudinal direction of the right connecting plate, and a second through hole for the latch to pass through is opened in the transverse direction of the right connecting plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In this application, the sample is tightened and fixed by a threaded rod and an adjustment structure, so that the sample can be evenly stressed, which is beneficial to maintaining the balance and tightness of the sample. In addition, for samples of different thicknesses, due to the difference in relative position with the sample, the wear mark position will not be in the exact center of the fixture. The use of a threaded rod and an adjustment structure can asymmetrically adjust the horizontal position of the sample to ensure that the wear mark of the sample is in the center of the sample. When used in this application, the relative position of the sample can be adjusted arbitrarily by adjusting the position of the threaded rod and the adjustment structure. This tooling fixture can liberate the size of the sample to a certain extent, and has a simple structure, and is easy, quick and efficient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the fixture structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the fixing portion of the present utility model;

[0015] Figure 3 This is a schematic diagram of the lifting part structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the adjustment structure of the utility model;

[0017] Figure 5 This is a schematic cross-sectional view of the fixed body of the utility model;

[0018] In the figure: 1. Fixed body; 2. First U-shaped block; 3. Fastener; 4. Circular through hole; 5. Second U-shaped block; 6. Left connecting plate; 7. Right connecting plate; 8. Threaded rod; 9. Movable rod; 10. U-shaped chuck; 11. Pin; 12. Spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5 In an embodiment of the present invention, a fixture for a ring-block wear testing machine includes a fixed part and a lifting part inserted into the fixed part. A fastener 3 for adjusting the position of the lifting part is installed on the fixed part. The lifting part includes a left connecting plate 6 and a right connecting plate 7 inserted into the fixed part. The left connecting plate 6 and the right connecting plate 7 are respectively installed with a threaded rod 8 for fixing the product and an adjustment structure, and are configured to fix products of different sizes.

[0021] Specifically, under the action of the fastener 3, by rotating the fastener 3 clockwise or counterclockwise, the length of the left connecting plate 6 and the right connecting plate 7 passing through the end face of the fixed body 1 can be adjusted to adapt to samples of different thicknesses, which is beneficial to the stability of subsequent clamping. Therefore, under the action of the adjustment structure, samples of different sizes can be fixed to prevent the threaded rod 8 from causing the sample to deflect when fixing the other side. On the one hand, it can adapt to samples of different sizes, and on the other hand, it can ensure the stability of the sample during clamping.

[0022] See also Figure 3 In one embodiment, in this embodiment, preferably, the lifting part also includes a second U-shaped block 5, and the two ends of the second U-shaped block 5 are respectively connected to the left connecting plate 6 and the right connecting plate 7. Furthermore, the second U-shaped block 5 is adapted to the interior of the fixed part, which can better limit the position of the second U-shaped block 5. Secondly, the setting of the left connecting plate 6 and the right connecting plate 7 can better limit the side of the sample to prevent the sample from deflecting during the detection process.

[0023] See also Figure 2 In one embodiment, in this embodiment, preferably, the fixing portion includes a fixing body 1 and a first U-shaped block 2 fixed to the end face of the fixing body 1, the end face of the first U-shaped block 2 is threadedly connected with a fastener 3, and the fixing body 1 has a circular through hole 4 for fixing its position. Furthermore, the presence of the circular through hole 4 can fix the position of the fixing body 1 to ensure that the initial position of the clamp will not deviate. Secondly, the fastener 3 is specifically a bolt, which can achieve the effect of moving forward or backward while rotating. When the end of the fastener 3 is against the second U-shaped block 5, it can ensure that the second U-shaped block 5 is pushed to change its position.

[0024] See also Figure 5 In one embodiment, in this embodiment, preferably, two cavities are opened in the fixed body 1, and the two cavities are respectively for the connection plate 6 and the connection plate 7 to pass through, and the outer circumferences of the connection plate 6 and the connection plate 7 are respectively provided with springs 12 whose ends are connected to the second U-shaped block 5 and the inner wall of the cavity. Furthermore, under the action of the spring 12, on the one hand, the second U-shaped block 5 and the fixed body 1 can be connected together, and on the other hand, a force toward the fastener 3 can be applied to the second U-shaped block 5, so that the lifting part is always in the lowest position. According to the thickness of the sample, the fastener 3 can be adjusted to control the vertical lifting, and the horizontal lifting can be controlled by the fastener 3.

[0025] See also Figure 3-4 In one embodiment, in this embodiment, preferably, the adjustment structure includes a movable rod 9 inserted into the right connecting plate 7, and the end of the movable rod 9 adjacent to the threaded rod 8 is detachably equipped with a U-shaped clamp 10. A pin 11 is inserted into the right connecting plate 7 and passes through the right connecting plate 7 and the movable rod 9. A plurality of through holes that are equidistantly distributed on the movable rod 9 are adapted to the outer diameter of the pin 11. A first through hole for the movable rod 9 to pass through is provided in the longitudinal direction of the right connecting plate 7, and a second through hole for the pin 11 to pass through is provided in the transverse direction of the right connecting plate 7. By inserting the pin 11 into the corresponding through hole, the position of the fixed U-shaped clamp 10 can be adjusted, and the U-shaped clamp 10 can also be used to prevent the sample from being deflected by the rotation of the threaded rod 8.

[0026] The working principle and usage process of the utility model are as follows: when in use, due to the presence of the spring 12, the lifting part is always in the lowest position. According to the thickness of the sample, the fastener 3 can be adjusted to control the second U-shaped block 5 in the vertical direction, and the pin 11 is inserted into the corresponding through hole to adjust the position of the fixed U-shaped clamp 10. Secondly, the horizontal position is adjusted under the action of the threaded rod 8 to adapt to different samples. This fixture has a simple structure and is easy to operate. It can realize the adjustment of different samples in the length and thickness direction, and can firmly clamp samples of different lengths, thicknesses and thicknesses, saving sample installation time and facilitating the ring block wear test.

[0027] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0028] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A fixture for a ring block wear testing machine, characterized in that: The invention comprises a fixing part and a lifting part inserted into the fixing part, wherein a fastener (3) for adjusting the position of the lifting part is installed on the fixing part, and the lifting part comprises a left connecting plate (6) and a right connecting plate (7) inserted into the fixing part, wherein the left connecting plate (6) and the right connecting plate (7) are respectively installed with a threaded rod (8) for fixing the product and an adjustment structure, and are configured to fix products of different sizes.

2. The fixture of the ring block wear testing machine according to claim 1, characterized in that: The lifting part further comprises a second U-shaped block (5), and the two ends of the second U-shaped block (5) are respectively connected to the left connecting plate (6) and the right connecting plate (7).

3. The fixture of the ring block wear testing machine according to claim 2, characterized in that: The fixing portion comprises a fixing body (1) and a first U-shaped block (2) fixed to the end face of the fixing body (1); the end face of the first U-shaped block (2) is threadedly connected to a fastener (3); and the fixing body (1) has a circular through hole (4) for fixing its position.

4. The fixture of the ring block wear testing machine according to claim 3, characterized in that: Two cavities are provided in the fixed body (1), and the two cavities are respectively used for the left connecting plate (6) and the right connecting plate (7) to pass through. The outer peripheral surfaces of the left connecting plate (6) and the right connecting plate (7) are both provided with springs (12) whose ends are respectively connected to the second U-shaped block (5) and the inner wall of the cavity.

5. The fixture of the ring block wear testing machine according to claim 1, characterized in that: The adjustment structure includes a movable rod (9) plugged into the right connecting plate (7), the end of the movable rod (9) adjacent to the threaded rod (8) is detachably equipped with a U-shaped clamp (10), and a pin (11) penetrating the right connecting plate (7) and the movable rod (9) is plugged into the right connecting plate (7).

6. The fixture of the ring block wear testing machine according to claim 5, characterized in that: The movable rod (9) is provided with a plurality of through holes that are equidistantly distributed and match the outer diameter of the latch (11); the right connecting plate (7) is provided with a first through hole in the longitudinal direction for the movable rod (9) to pass through; and the right connecting plate (7) is provided with a second through hole in the transverse direction for the latch (11) to pass through.

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