CN114800316A

CN114800316A - Clamp for reaction rod support

Info

Publication number: CN114800316A
Application number: CN202210427295.5A
Authority: CN
Inventors: 聂新宇; 吕慧虹; 李双
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-29

Abstract

The application relates to a clamp for a reaction rod support, wherein two first positioning matching surfaces which are opposite to each other at intervals and perpendicular to a first direction are arranged inside the reaction rod support, and a spacing space is formed between the two first positioning matching surfaces. The fixture comprises a first positioning mechanism, a second positioning mechanism and a third positioning mechanism. First positioning mechanism includes two the relative blocks that rise that set up along the first direction, and two the blocks that rise are configured to can be in the interval space and do synchronous reverse rectilinear motion along the first direction, two the both sides that rise the block and carry on the back mutually on the first direction are equipped with the first locating surface of the first direction of perpendicular to, two first locating surfaces be used for with two first locating surface butt cooperation to the centering location of reaction rod support in the first direction. The second and third positioning mechanisms are for positioning the reaction rod support in the second and third directions, respectively. The clamp is accurate in positioning and beneficial to reducing machining errors.

Description

Clamp for reaction rod support

Technical Field

The application relates to the technical field of automobile part clamping tools, in particular to a clamp for a reaction rod support.

Background

In the related art, the reaction rod bracket is generally welded to the axle housing before subsequent machining of the reaction rod bracket. For the condition that the reaction rod support needs to be machined firstly, the shape and the structure of the reaction rod support are complex, so that the positioning is inaccurate, and the machining error is large.

Disclosure of Invention

In view of the above, it is desirable to provide a clamp for a reaction rod support, which can accurately position the reaction rod support and reduce machining errors.

According to one aspect of the present application, there is provided a clamp for a reaction rod bracket, comprising:

the first positioning mechanism comprises two expansion blocks which are oppositely arranged along the first direction; the two expansion blocks are configured to be capable of synchronous reverse linear motion along the first direction in the interval space; two opposite sides of the two expansion blocks in the first direction are provided with first positioning surfaces perpendicular to the first direction; the two first positioning surfaces are used for being in abutting fit with the two first positioning matching surfaces so as to center and position the reaction rod support in the first direction;

the second positioning mechanism is provided with a second positioning surface vertical to the second direction; the second positioning surface is used for being in butt fit with the second positioning matching surface so as to position the reaction rod support in the second direction; and

a third positioning mechanism for supporting the reaction rod bracket in a third direction to position the reaction rod bracket in the third direction;

wherein the first direction, the second direction, and the third direction are perpendicular to each other.

In one embodiment, the first positioning mechanism further comprises an actuator;

the two blocks are elastically connected so that the two blocks can be connected to each other by an elastic force when they are moved away from each other in the first direction in response to the urging force of the actuator.

In one embodiment, one side of each expansion block, which is opposite to the other side of each expansion block, is provided with an abutting surface, and an opening is formed between the two abutting surfaces;

the two abutment surfaces are configured to contact the actuator member during movement of the actuator member toward the opening to move away from each other in the first direction in response to the force of the actuator member to cause the two first locating surfaces to abut the two first locating mating surfaces.

In one embodiment, the opening is tapered in the direction of insertion of the actuator.

In one embodiment, two abutting matching surfaces are symmetrically arranged on the actuating piece;

the two abutting and matching surfaces are configured to abut against the two abutting and matching surfaces respectively in the process that the actuating piece moves towards the opening.

In one embodiment, the first positioning mechanism further comprises a swelling block seat;

the expansion block seat is sleeved outside the two expansion blocks in a sliding mode along the first direction so as to guide the expansion blocks in the first direction.

In one embodiment, the clamp further comprises a mounting plate;

the first positioning mechanism and the second positioning mechanism are arranged on the mounting plate, and the first positioning mechanism is located on the second positioning mechanism in the second direction, and the second positioning surface is arranged on one side of the second positioning surface.

In one embodiment, the first positioning mechanism is detachably connected to the mounting plate, and the second positioning mechanism is fixedly connected to the mounting plate;

the fixture further comprises an adjusting mechanism, and the adjusting mechanism is used for adjusting the distance between the first positioning mechanism and the second positioning mechanism in the second direction.

In one embodiment, the third positioning mechanism comprises a support block and a support nail which are arranged at intervals;

the supporting block is used for supporting the reaction rod bracket in a surface contact mode, and the supporting nail is used for supporting the reaction rod bracket in a point contact mode.

In one embodiment, the clamp further comprises a clamping mechanism;

the clamping mechanism is configured to be able to approach or separate from the second positioning mechanism in the second direction to form a mounting space with the second positioning mechanism that is able to clamp or unclamp the reaction rod bracket.

In above-mentioned anchor clamps, first positioning mechanism includes and is synchronous reverse rectilinear motion's two expansion blocks along the first direction, utilizes two first locating surfaces that two expansion blocks carried on the back both sides on the first side mutually and the cooperation of two inside first location fitting surfaces butt of reaction pole support, has realized the centering location of reaction pole support in the first direction. The first positioning mechanism, the second positioning mechanism and the third positioning mechanism act together to position the reaction rod support in three directions perpendicular to each other. The clamp is accurate in positioning and beneficial to reducing machining errors.

Drawings

FIG. 1 is a schematic view of the reaction rod support of an embodiment of the present application;

FIG. 2 is a schematic view of the reaction rod bracket of FIG. 1 at another angle;

FIG. 3 is a schematic view of a clamp according to an embodiment of the present application;

FIG. 4 is a schematic view of the fixture of FIG. 3 at another angle;

FIG. 5 is a schematic view of a clamp positioning reaction rod support in one embodiment of the present application;

FIG. 6 is a schematic view of the clamp positioning reaction rod carriage of FIG. 5 at another angle;

FIG. 7 is a schematic view of a first positioning mechanism according to an embodiment of the present application;

FIG. 8 is a schematic view of the fixture of FIG. 3 at a further angle.

Description of reference numerals:

10. a reaction rod support; 11. a first locating mating surface; 12. a second locating mating surface; 13. a third locating mating surface; 14. clamping the mating surface;

100. a first positioning mechanism; 110. expanding blocks; 111. a first positioning surface; 112. an abutting surface; 120. an actuator; 121. an abutting mating surface; 130. a tension spring; 140. a drive member; 150. a block expanding seat; 160. a positioning sleeve; 170. a first connecting plate; 171. a long hole;

200. a second positioning mechanism; 210. positioning blocks; 211. a second positioning surface; 220. a second connecting plate; 230. a gasket;

300. a third positioning mechanism; 310. a support block; 311. a third positioning surface; 320. a support pin;

400. mounting a plate;

500. an adjustment mechanism; 510. adjusting the bolt; 520. a gland; 530. adjusting the nut;

600. a clamping mechanism; 601. a clamping surface;

700. the clamp bottom plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In order to solve the above-mentioned problems of the related art, the inventors of the present application analyzed the structure of the reaction rod bracket to determine the locations on the reaction rod bracket that can be used for positioning, and designed corresponding positioning schemes for these locations, thereby providing a jig for the reaction rod bracket that can accurately position the reaction rod bracket and reduce machining errors.

FIG. 1 illustrates a schematic view of the structure of a reaction rod support 10 in one embodiment of the present application; FIG. 2 shows a schematic view of the reaction rod bracket 10 of FIG. 1 at another angle.

Referring to fig. 1 and 2, the reaction rod bracket 10 is provided with two first positioning matching surfaces 11 at a distance from each other and perpendicular to the first direction, and a space a is formed between the two first positioning matching surfaces 11. One side of the reaction rod bracket 10 in the second direction is provided with a second location-mating surface 12 perpendicular to the second direction.

In particular, the center plane O of the two first positioning mating surfaces 11 is an important machining reference for the reaction rod bracket 10 during machining, and needs to be accurately positioned to ensure the machining precision and reduce the machining error.

The bottom of the reaction rod support 10 is not limited to the cambered form shown in FIG. 1, and in some embodiments the bottom of the reaction rod support 10 is configured as a flat surface.

FIG. 3 shows a schematic view of the structure of a clamp in one embodiment of the present application; fig. 4 shows a schematic view of the clamp of fig. 3 at another angle.

Referring to fig. 3 and 4, embodiments of the present application provide a clamp for a reaction rod bracket 10 that includes a first positioning mechanism 100, a second positioning mechanism 200, and a third positioning mechanism 300. The first positioning mechanism 100 includes two blocks 110 oppositely disposed along a first direction, and the two blocks 110 are configured to be capable of performing synchronous reverse linear motion along the first direction in the space a. Two opposite sides of the two expansion blocks 110 in the first direction are provided with first positioning surfaces 111 perpendicular to the first direction. The two first locating surfaces 111 are for abutting engagement with the two first locating engagement surfaces 11 to center the reaction rod bracket 10 in a first direction.

The second positioning mechanism 200 is provided with a second positioning surface 211 perpendicular to the second direction, and the second positioning surface 211 is used for being in abutting fit with the second positioning matching surface 12 to position the reaction rod support 10 in the second direction. The third positioning mechanism 300 is used to support the reaction rod bracket 10 in the third direction to position the reaction rod bracket 10 in the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

Specifically, in the illustrated embodiment, the first direction is an x-direction, the second direction is a y-direction, and the third direction is a z-direction.

The positioning of the clamp to position the reaction rod support 10 in three directions is schematically illustrated with reference to the drawings.

FIG. 5 shows a schematic view of the clamp positioning reaction rod carriage 10 in one embodiment of the present application; FIG. 6 shows a schematic view of the clamp positioning reaction rod carriage 10 of FIG. 5 at another angle.

With continued reference to fig. 3, the two blocks 110 move linearly in the first direction in opposite directions in a synchronous manner such that the positions of the center planes P of the two first positioning surfaces 111 in the first direction are maintained. Referring to fig. 5, when the two positioning surfaces 111 are in abutting engagement with the two first positioning engagement surfaces 11, the center planes P of the two first positioning surfaces 111 coincide with the center planes O of the two first positioning engagement surfaces 11, so as to realize the centering and positioning of the reaction rod bracket 10 by the fixture in the first direction.

Referring to FIG. 6, when the second locating surface 211 is in abutting engagement with the second locating engagement surface 12, the reaction rod bracket 10 is restrained in the second direction, thereby enabling the clamp to position the reaction rod bracket 10 in the second direction. Referring to FIG. 5, the third positioning mechanism 300 supports the bottom of the reaction rod bracket 10 in the third direction to enable the fixture to position the reaction rod bracket 10 in the third direction.

Therefore, in the clamp provided by the embodiment of the present application, the first positioning mechanism 100 includes two expansion blocks 110 moving linearly in a synchronous and reverse direction along the first direction, and the two first positioning surfaces 111 of the two expansion blocks 110 on opposite sides in the first direction are in abutting fit with the two first positioning mating surfaces 11 inside the reaction rod support 10, so as to realize the centering and positioning of the reaction rod support 10 in the first direction. The first positioning mechanism 100, the second positioning mechanism 200 and the third positioning mechanism 300 work together to position the reaction rod bracket 10 in three directions perpendicular to each other. The clamp is accurate in positioning and beneficial to reducing machining errors.

The following describes the structure of each part of the fixture in the following embodiments with reference to the accompanying drawings.

Fig. 7 shows a schematic structural diagram of the first positioning mechanism 100 in an embodiment of the present application.

In some embodiments, referring to fig. 7, the first positioning mechanism 100 further comprises an actuator 120, and the two expansion blocks 110 are elastically connected so that the two expansion blocks 110 can be connected to each other by an elastic force when moving away from each other in the first direction in response to the force of the actuator 120. Optionally, the two expansion blocks 110 are elastically connected by means of a tension spring 130.

As an alternative embodiment, the opposite sides of the two expansion blocks 110 are provided with abutting surfaces 112, and an opening B is formed between the two abutting surfaces 112. The two abutting surfaces 112 are configured to contact the actuator member 120 during the movement of the actuator member 120 toward the opening B to move away from each other in the first direction in response to the force of the actuator member 120, so that the two first positioning surfaces 111 abut the two first positioning mating surfaces 11.

In some embodiments, the opening B is tapered in the insertion direction of the actuator 120 such that the distance between the two bumps 110 in the first direction increases as the actuator 120 moves in the insertion direction. Specifically, the two abutting surfaces 112 are inclined with respect to the central plane P at the same angle to convert the linear motion of the actuator 120 in the insertion direction into the linear motion of the two expanding blocks 110 in the first direction in the synchronous opposite direction.

Further, the first positioning mechanism 100 further comprises a driving member 140, and the driving member 140 is configured to drive the actuator 120 to move linearly along the insertion direction, so that the actuator generates a force to move the two blocks 110 away from each other along the first direction. Alternatively, the driving member 140 is one of linear driving members such as an air cylinder, a hydraulic cylinder, an electric push rod, and the like.

In some embodiments, the insertion direction of actuator 120 is in a third direction, and drive member 140 is configured to drive actuator 120 in the third direction, facilitating the clamp configuration arrangement. In other embodiments, the insertion direction of the actuator 120 can be in other directions, such that the insertion direction is parallel to the central plane P.

In some embodiments, two abutting engagement surfaces 121 are symmetrically disposed on the actuating member 120, and the two abutting engagement surfaces 121 are configured to abut against the two abutting surfaces 112 respectively during the movement of the actuating member 120 toward the opening B. Specifically, the abutting engagement surface 121 and the corresponding abutting surface 112 have the same inclination angle, so that the two expansion blocks 110 are kept in surface contact with the actuator 120 during the movement of the actuator 120 to the opening B, and the smooth pushing process of the actuator 120 to the two expansion blocks 110 is ensured.

In some embodiments, the first positioning mechanism 100 further includes a block expanding seat 150, and the block expanding seat 150 is slidably sleeved outside the two blocks 110 along the first direction to guide the blocks 110 in the first direction.

In some embodiments, the first positioning mechanism 100 further includes a positioning sleeve 160, and the positioning sleeve 160 is slidably sleeved outside the actuating member 120 along the third direction to guide the actuating member 120 in the third direction.

FIG. 8 shows a schematic view of the clamp of FIG. 3 at yet another angle.

Referring to fig. 3, 4 and 8, the fixture further includes a mounting plate 400, the first positioning mechanism 100 and the second positioning mechanism 200 are disposed on the mounting plate 400, and the first positioning mechanism 100 is located on one side of the second positioning mechanism 200, on which the second positioning surface 211 is disposed, in the second direction. The distance in the second direction of the first positioning mechanism 100 relative to the second positioning mechanism 200 is determined according to the dimension of the reaction rod support 10 to be positioned, so that the two first positioning surfaces 111 and the two first positioning engagement surfaces 11 can be in abutting engagement, and the second positioning surface 211 and the second positioning engagement surface 12 can also be in abutting engagement.

In some embodiments, the first positioning mechanism 100 is removably attached to the mounting plate 400 and the second positioning mechanism 200 is fixedly attached to the mounting plate 400. The fixture further includes an adjustment mechanism 500, the adjustment mechanism 500 being configured to adjust a distance in the second direction of the first positioning mechanism 100 relative to the second positioning mechanism 200.

As an alternative embodiment, referring to fig. 3 and 8, the first positioning mechanism 100 further includes a first connecting plate 170, and the expansion block seat 150 is connected to the first connecting plate 170. The first connection plate 170 is provided with an elongated hole 171 elongated in the second direction, and the first connection plate 171 is bolted to the mounting plate 400 through the elongated hole 171, so that the mounting position of the first connection plate 171 on the mounting plate 400 in the second direction is adjustable.

Referring to fig. 4 and 8, the second positioning mechanism 200 includes a positioning block 210 and a second connecting plate 220, a second positioning surface 211 is formed on a side of the positioning block 210 departing from the second connecting plate 220 along the second direction, and the second connecting plate 220 is fixedly disposed on the mounting plate 400. The adjustment mechanism 500 includes an adjustment bolt 510, a gland 520, and an adjustment nut 530. One end of the adjusting bolt 510 is fixed with the first connecting plate 170 through the gland 520, the other end of the adjusting bolt passes through the second connecting plate 220 along the second direction, and the adjusting nut 530 is screwed to one end of the adjusting screw 510 extending out of the second connecting plate 220 and abuts against the second connecting plate 220. By screwing or unscrewing the adjusting nut 530, the distance between the first connecting plate 170 and the second connecting plate 220 in the second direction can be adjusted, and the distance between the second positioning surface 211 and the expansion block 110 in the second direction can be adjusted.

In some embodiments, referring to fig. 4, the second positioning mechanism 200 further includes a spacer 230 disposed between the positioning block 210 and the second connecting plate 220 for fine-tuning the distance between the second positioning surface 211 and the expanding block 110 in the second direction.

In some embodiments, referring to fig. 3, the third positioning mechanism 300 includes a support block 310 and a support pin 320 disposed in opposing spaced relation. The support block 310 is used for surface contact support of the reaction rod support 10, and the support pin 320 is used for point contact support of the reaction rod support 10.

In the illustrated embodiment, referring to fig. 1 and 5, the bottom of the reaction rod bracket 10 is provided with a third positioning mating surface 13, the third positioning mating surface 13 is configured as an arc surface, and the support block 310 is provided with a third positioning surface 311 adapted to at least partially the arc surface of the third positioning mating surface 13, so that the support block 310 is supported by the reaction rod bracket 10 in surface contact. Optionally, support block 310 may be removably attached to mounting plate 400 to facilitate selection of an appropriate support block 310 for different arc shapes.

In some embodiments, referring to fig. 8, the support blocks 310 and the support pins 320 are disposed on the mounting plate 400 on both sides of the first positioning mechanism 100 in the first direction. The support pins 320 are two, and the two support pins 320 are spaced apart in the second direction to ensure the support and positioning effect of the clamp on the reaction rod bracket 10 in the third direction. Optionally, the support block 310 and support pin 320 are height adjustable in a third direction to accommodate different size reaction rod brackets 10.

In some embodiments, referring to fig. 4, the clamp further includes a clamping mechanism 600, the clamping mechanism 600 being configured to be able to approach or move away from the second positioning mechanism 200 in the second direction to form a mounting space C with the second positioning mechanism 200 that can clamp or unclamp the reaction rod bracket 10.

Specifically, referring to fig. 2 and 6, the reaction rod bracket 10 is provided with a clamping engagement surface 14 perpendicular to the second direction on the other side in the second direction opposite to the second positioning engagement surface 12, and the clamping mechanism 600 is provided with a clamping surface 601 perpendicular to the second direction. After the first positioning mechanism 100, the second positioning mechanism 200, and the third positioning mechanism 300 position the reaction rod bracket 10 in three directions perpendicular to each other, respectively, the clamping surface 601 of the clamping mechanism 600 is brought into abutting engagement with the clamping engagement surface 14 of the reaction rod bracket 10, thereby clamping and fixing the reaction rod bracket 10 to the jig.

In some embodiments, the fixture further comprises a fixture base plate 700, the mounting plate 400 and the clamping mechanism 600 are disposed on the fixture base plate 700, and the first positioning mechanism 100, the second positioning mechanism 200, and the third positioning mechanism 300 are disposed on the mounting plate 400. Before positioning, the mounting plate 400 can be detached from the fixture base plate 700, so that the first positioning mechanism 100, the second positioning mechanism 200 and the third positioning mechanism 300 can be adjusted and operated conveniently to be adapted to reaction rod brackets 10 of different specifications.

The operation process of the clamp is as follows: the distance between the second locating surface 211 and the expansion block 110 in the second direction is adjusted to fit the dimensions of the reaction rod bracket 10 to be located. The two expansion blocks 110 are extended into the spacing space A between the two first positioning matching surfaces 11, the third positioning matching surface 13 is arranged on the supporting block 310 and the supporting nail 320, the reaction rod support 10 is pushed along the second direction, the second positioning matching surface 13 is abutted against the second positioning surface 211, and the positioning of the reaction rod support 10 in the second direction and the third direction is realized. The driving member 140 is activated to make the actuator 120 push the two expansion blocks 110 to perform the synchronous and reverse linear motion along the first direction until the two first positioning surfaces 111 are in abutting engagement with the two first positioning engagement surfaces 11, so as to realize the centering and positioning of the reaction rod bracket 10 in the first direction. The clamping mechanism 600 is actuated to bring the clamping surface 601 into abutting engagement with the clamping mating surface 14, thereby clamping and fixing the reaction rod bracket 10.

To sum up, the clamp provided by the embodiment of the present application can be used for processing and positioning the reaction rod support 10, and the first positioning surfaces 111 on the two expansion blocks 110 are in butt fit with the two first positioning matching surfaces 11 inside the reaction rod support 10, so as to realize centering and positioning of the reaction rod support 10 in the first direction, and ensure that the central plane O of the two first positioning matching surfaces 11 is accurately positioned. The first positioning mechanism 100, the second positioning mechanism 200 and the third positioning mechanism 300 work together to position the reaction rod bracket 10 in three directions perpendicular to each other. The clamp is accurate in positioning and beneficial to reducing machining errors.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of this patent shall be subject to the appended claims.

Claims

1. A clamp for a reaction rod support, characterized in that two first positioning and matching surfaces which are opposite to each other at intervals and perpendicular to a first direction are arranged in the reaction rod support, and a spacing space is formed between the two first positioning and matching surfaces; a second positioning matching surface which is perpendicular to the second direction is arranged on one side of the reaction rod support along the second direction; the jig includes:

2. The clamp of claim 1, wherein the first positioning mechanism further comprises an actuator;

3. The clamp of claim 2, wherein the opposite sides of the two expansion blocks are provided with abutting surfaces, and an opening is formed between the two abutting surfaces;

4. The clamp of claim 3, wherein the opening is tapered in a direction of insertion along the actuator.

5. The clamp of claim 3, wherein the actuator is symmetrically provided with two abutting mating surfaces;

6. The fixture of any one of claims 1-5, wherein the first positioning mechanism further comprises a bump seat;

7. The clamp of any one of claims 1-5, further comprising a mounting plate;

8. The clamp of claim 7, wherein a first positioning mechanism is removably attached to the mounting plate and the second positioning mechanism is fixedly attached to the mounting plate;

9. The clamp of any one of claims 1-5, wherein the third positioning mechanism comprises a support block and a support pin disposed in spaced relation to one another;

10. The clamp of any one of claims 1-5, further comprising a clamping mechanism;