CN216207191U - Clamping device for detecting small-specification bolt damage torque - Google Patents

Abstract

The embodiment of the application discloses a clamping device for detecting small-size bolt destroys moment of torsion includes: a base provided with a first screw; the sliding seat is horizontally and slidably arranged on the base, the bottom of the sliding seat is in threaded connection with the first screw, one side of the upper surface of the sliding seat is provided with a baffle, the other side of the upper surface of the sliding seat is provided with a screw seat, and a second screw penetrates through the screw on the screw seat; the bench clamp is arranged on the sliding seat and can horizontally slide between the baffle and the screw rod seat; two half thread bushes are detachably mounted on opposite sides of the two half type clamping blocks respectively, and matched half thread holes are formed in opposite sides of the two half thread bushes. The sliding seat slides, so that the centering and position adjusting are facilitated, and the first screw rod can drive the sliding seat to slide; the complete set of two half-type fixture blocks and two half thread sleeves sets up relatively, takes out the work piece defective material after conveniently opening, and the demountable installation of two half thread sleeves can realize the change or the change of specification after the half thread sleeve damages, convenient maintenance and change.

Description

Clamping device for detecting small-specification bolt damage torque

Technical Field

The embodiment of the application relates to the technical field of fastener breaking torque tests, in particular to a clamping device for detecting breaking torque of small-specification bolts.

Background

The breaking torque is a torque at which the bolt is sheared by the torque. The maximum mounting torque can be understood as the maximum force which can be used for screwing the screw during mounting, the destructive torque test means that a tested bolt or screw is clamped in a test device, the destructive torque is measured, the bolt or screw only bears torsion during the test, a test piece cannot be broken before the minimum destructive torque is reached, and the head part or the thread part of the bolt or the screw and the thread part do not rub to influence the test result during the test; the clamping device used in the existing destructive torque test is generally integrated with a destructive torque testing machine, the position adjustment is inconvenient, and the centering is inconvenient in the bolt destructive torque detection process; and if the clamping device is damaged, the clamping device is not easy to maintain and replace.

Disclosure of Invention

The technical problem that this application embodiment will be solved provides a clamping device for detecting small-specification bolt destroys moment of torsion.

The embodiment of the application is realized by the following technical scheme: a clamping device for detecting breaking torque of a small-sized bolt, comprising: the base is provided with a first screw rod, and the first screw rod can rotate around the axis of the first screw rod; the sliding seat is horizontally and slidably arranged on the base, the bottom of the sliding seat is in threaded connection with the first screw, one side of the upper surface of the sliding seat is provided with a baffle, the other side of the upper surface of the sliding seat is provided with a screw seat, and a second screw penetrates through the screw on the screw seat; the bench clamp is arranged on the sliding seat and can horizontally slide between the baffle and the screw rod seat, the sliding direction of the bench clamp is perpendicular to that of the sliding seat, and the second screw rod can rotate to push the bench clamp to slide towards the baffle; the two half-type clamping blocks are fixedly arranged on the opposite sides of the baffle and the bench clamp; two half thread bushes, respectively demountable installation in the opposite side of two half formula fixture blocks, the side in opposite directions of two half thread bushes is equipped with the half screw hole of matching, and two half thread bushes are laminated in opposite directions and enable two half screw hole amalgamations to become complete screw hole to supply the bolt to twist.

Further, the upper surface of the base is provided with a sliding rail, and the bottom of the sliding seat is provided with a sliding groove matched with the sliding rail.

Further, the sliding seat bottom is equipped with the screw drive cover with first screw rod adaptation, the base middle part is equipped with the position of stepping down that supplies the screw drive cover activity, the lateral wall that the position of stepping down is worn to locate by first screw rod.

Furthermore, waist-shaped mounting holes are formed in four corners of the base.

Furthermore, the opposite sides of the two half-type clamping blocks are provided with semicircular grooves, and the corresponding semicircular grooves are embedded in the half thread sleeves.

Furthermore, the lateral wall level that half thread bush was dorsad half screw hole extends has the reference column, the reference column outer end is equipped with the screw thread axle, half formula fixture block is equipped with and supplies reference column male locating hole, the screw thread axle pierces out the locating hole and is connected with fastening nut in order to realize being connected of half formula fixture block and half thread bush.

Further, the positioning column is a polygonal prism.

The beneficial effects are that:

compared with the prior art, the clamping device for detecting the breaking torque of the small-specification bolt is convenient for centering and adjusting the position through the sliding of the sliding seat, and the first screw can drive the sliding seat to slide; the sliding of the bench clamp and the pushing of the second screw rod can realize the clamping and loosening of the bench clamp on the workpiece, so that the residual material can be conveniently taken out; the complete set of two half-type fixture blocks and two half thread sleeves sets up relatively, takes out the work piece defective material after conveniently opening, and the demountable installation of two half thread sleeves can realize the change or the change of specification after the half thread sleeve damages, convenient maintenance and change.

Drawings

The following detailed description of embodiments of the present application is provided in conjunction with the appended drawings, wherein:

FIG. 1 is a structural diagram illustrating an installation state of an embodiment of the present application;

FIG. 2 is a schematic exploded view of an embodiment of the present application;

FIG. 3 is a schematic view of the structure of the sliding seat and the bench clamp;

FIG. 4 is an enlarged view at A of FIG. 2;

fig. 5 is a structural schematic diagram of the split state of the two half thread sleeves.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the embodiments of the present application, the embodiments of the present application are described in detail below with reference to the drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like elements in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that a product of the embodiments of the present application is usually placed in when used, and are only used for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a clamping device for detecting a breaking torque of a small-sized bolt includes a base 10, a sliding seat 20, a vise 30, a half-type fixture block 40, and a half-threaded sleeve 50.

First screw 12 is installed to base 10, and base 10 is equipped with the hole site that supplies first screw 12 to wear to establish, and first screw 12 can be rotatory around self axis. Sliding seat 20 horizontal sliding mount is in base 10 and bottom and first screw 12 threaded connection, and sliding seat 20 upper surface one side is equipped with baffle 21, and the opposite side is equipped with screw seat 22, screw seat 22 is gone up the screw thread and is worn to be equipped with second screw 23, and screw seat 22 establishes and is equipped with the screw hole with second screw 23 adaptation so that second screw 23 screw thread wears to establish. Through the spiral transmission connection of the sliding seat 20 and the first screw 12, the sliding seat 20 can be driven to slide relative to the base 10 by rotating the first screw 12 to adjust the position, so that the centering operation is facilitated.

The vise 30 is mounted to the sliding block 20 and can slide horizontally between the stop plate 21 and the screw block 22, and the sliding direction of the vise 30 is perpendicular to the sliding direction of the sliding block 20, that is, the horizontal direction from the stop plate 21 to the screw block 22 is perpendicular to the sliding direction of the sliding block 20. The second screw 23 can rotate to push the bench clamp 30 to slide towards the baffle 21, so as to clamp and fix the workpiece. The two half-type clamping blocks 40 are fixedly arranged on the opposite sides of the baffle plate 21 and the bench clamp 30, and the half-type clamping blocks 40 are oppositely arranged. Two half thread bushes 50 are demountable installation respectively in the opposite side of two half-type fixture blocks 40, the opposite side of two half-thread bushes 50 is equipped with half screw hole 51 of matching, two half-thread bushes 50 laminating in opposite directions enables two half screw holes 51 amalgamation to become complete screw hole, for the bolt twists, during the use, rotatory second screw 23 promotes bench vice 30 and drives half-type fixture block 40 and half-thread bush 50 towards the baffle direction motion that corresponds with it, until two half-thread bushes 50 hug closely the amalgamation and form complete screw hole, then twist the bolt after, test the bolt. The detachable installation of half thread bush 50 can realize damaging the change and the specification is changed for the easy wearing and tearing piece can be changed alone, reduces the maintenance cost, and the specification interchangeable, has improved application area.

According to a possible embodiment, the upper surface of the base 10 is provided with a slide rail 11, the bottom of the sliding seat 20 is provided with a slide groove 24 adapted to the slide rail 11, sliding guidance is realized by matching the slide rail 11 with the slide groove 24, and the cross sections of the slide rail 11 and the slide groove 24 are dovetail-shaped to prevent overturning. In a similar way, the bench clamp and the sliding seat realize sliding guide through the matching of the guide rail and the groove, and the extending direction of the guide rail on the sliding seat is vertical to the extending direction of the sliding rail 11.

The utility model provides a possible embodiment, sliding seat 20 bottom is equipped with the screw drive cover 25 with first screw rod 12 adaptation, base 10 middle part is equipped with the 13 of stepping down that supplies the activity of screw drive cover 25, first screw rod 12 wears to locate the lateral wall of stepping down 13, and the lateral wall of stepping down 13 is equipped with the screw hole with first screw rod 12 adaptation and wears to establish in order to supply first screw rod 12 screw thread, and 13 of stepping down can make the fitting space inseparabler, reduces the holistic volume of device and weight.

In a possible embodiment, the four corners of the base 10 are provided with kidney-shaped mounting holes 14 to facilitate mounting on the testing machine frame, and the kidney-shaped mounting holes 14 have a certain position adjusting space to allow a small range of position adjustment.

In a possible embodiment, the opposite sides of the two half-type blocks 40 are provided with semi-circular grooves 41, the half-thread sleeves 50 are embedded into the corresponding semi-circular grooves 41 and can be screwed in order that the bolt workpiece can be screwed in, and the bottoms of the semi-circular grooves 41 are provided with bottom walls for the bottoms of the bolt workpiece to abut against. The outer peripheral wall of the half thread sleeve 50 is matched with the semi-circular groove 41 to achieve a certain limiting and positioning effect.

According to one possible embodiment, a positioning column 52 extends horizontally from the side wall of the half threaded sleeve 50, which is opposite to the half threaded hole 51, a threaded shaft 53 is arranged at the outer end of the positioning column 52, the half fixture block 40 is provided with a positioning hole 42 for the positioning column 52 to be inserted, the threaded shaft 53 penetrates through the positioning hole 42 and is connected with a fastening nut 44 to realize the connection between the half fixture block 40 and the half threaded sleeve 50, the positioning and installation effects are realized through the positioning column 52 and the positioning hole 42, the installation accuracy is improved, the fastening nut 44 and the threaded shaft 53 are reused to realize the fixed connection between the two, and the detachable property is achieved. In addition, the back side of the half latch 40 is provided with a countersunk groove 43 to conceal the fastening nut 44.

In a possible embodiment, the positioning pillar 52 is a polygonal prism, and the cross section of the positioning hole 42 is a corresponding polygon, which can provide a better positioning, so that the positioning pillar 52 cannot rotate in the positioning hole 42.

In addition, a connecting column 45 is arranged on one side of each of the two half-type clamping blocks 40, which is opposite to each other, the bench vice 30 and the baffle plate 21 are provided with corresponding hole sites, the connecting column 45 of the half-type clamping block 40 connected with the bench vice 30 penetrates through the corresponding hole sites and is provided with nuts to realize the fixed connection of the two half-type clamping blocks, and the connecting column 45 of the half-type clamping block 40 connected with the baffle plate 21 penetrates through the corresponding hole sites and is provided with nuts to realize the fixed connection of the two half-type clamping blocks.

The above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the same, and any modification or equivalent replacement without departing from the spirit and scope of the embodiments of the present application should be covered within the technical solutions of the present application.

Claims (7)

1. A clamping device for detecting a breaking torque of a small-sized bolt, characterized by comprising:

the base (10) is provided with a first screw (12), and the first screw (12) can rotate around the axis of the first screw;

the sliding seat (20) is horizontally and slidably arranged on the base (10), the bottom of the sliding seat is in threaded connection with the first screw (12), one side of the upper surface of the sliding seat is provided with a baffle (21), the other side of the upper surface of the sliding seat is provided with a screw seat (22), and a second screw (23) penetrates through the screw on the screw seat (22);

the bench clamp (30) is arranged on the sliding seat (20) and can horizontally slide between the baffle plate (21) and the screw rod seat (22), the sliding direction of the bench clamp (30) is vertical to that of the sliding seat (20), and the second screw rod (23) can rotationally push the bench clamp (30) to slide towards the baffle plate (21);

the two half-type clamping blocks (40) are fixedly arranged on the opposite sides of the baffle plate (21) and the bench clamp (30);

two half thread bushes (50), respectively demountable installation are in the side in opposite directions of two half formula fixture blocks (40), and the side in opposite directions of two half thread bushes (50) is equipped with half screw hole (51) of matching, and two half thread bushes (50) laminate in opposite directions enable two half screw hole (51) amalgamation to become complete screw hole to supply the bolt to twist.

2. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 1, wherein: the upper surface of the base (10) is provided with a sliding rail (11), and the bottom of the sliding seat (20) is provided with a sliding groove (24) matched with the sliding rail (11).

3. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 2, wherein: slide holder (20) bottom is equipped with spiral transmission cover (25) with first screw rod (12) adaptation, base (10) middle part is equipped with the position of stepping down (13) that supplies spiral transmission cover (25) activity, the lateral wall of position of stepping down (13) is worn to locate by first screw rod (12).

4. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 2, wherein: waist-shaped mounting holes (14) are formed in four corners of the base (10).

5. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 1, wherein: the opposite sides of the two half-type clamping blocks (40) are provided with semi-circular grooves (41), and the half-thread sleeves (50) are embedded into the corresponding semi-circular grooves (41).

6. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 5, wherein: the half-thread sleeve (50) is back to the lateral wall level extension of half-thread hole (51) and is provided with a positioning column (52), the outer end of the positioning column (52) is provided with a threaded shaft (53), the half-type clamping block (40) is provided with a positioning hole (42) for the positioning column (52) to insert, and the threaded shaft (53) penetrates through the positioning hole (42) and is connected with a fastening nut (44) to realize the connection of the half-type clamping block (40) and the half-thread sleeve (50).

7. The clamping device for detecting the breaking torque of the small-sized bolt according to claim 6, wherein: the positioning column (52) is a polygonal prism.

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