CN218904394U - Clamp for drilling end face positioning hole by thrust rod - Google Patents

Abstract

The utility model relates to a clamp for drilling end face positioning holes on a thrust rod, which comprises a bottom plate and a clamping seat; the bottom plate is vertically provided with a rotary seat plate at two side positions; the clamping seat comprises a back plate, two sides of the back plate are vertically provided with side plates, the back plate is sequentially provided with a center positioning block and a center pin shaft on the same side of the side plates, and the center pin shaft is in threaded connection with a locking nut; the clamping seat is positioned between the two rotary seat plates, and the side plates are rotationally connected with the rotary seat plates; at least one rotary seat board is provided with a pointer part, and at least one side board adjacent to the pointer part is provided with scales. The scheme of the utility model can avoid the problem of repeated loading and unloading of workpieces, reduce the labor intensity of manual operation, improve the precision of angle adjustment, improve the clamping and fixing stability and reduce the processing cost.

Description

Clamp for drilling end face positioning hole by thrust rod

Technical Field

The utility model relates to the technical field of automobile thrust rod processing equipment, in particular to a clamp for drilling end face positioning holes on a thrust rod.

Background

The automobile thrust rod (also called a wagon tension rod) is widely applied to a truck or a passenger car with an automobile suspension system, and is mainly used for keeping the axle position relatively fixed so as to transmit the longitudinal force, the transverse force and the moment in other directions of the automobile, ensure the definite movement relationship between wheels and a car body and ensure that the automobile has good drivability.

The automobile thrust rod product is approximately V-shaped, a transversely-through center hole is formed in the bottom of the V-shaped, the automobile thrust rod product is used for installing a spherical hinge, and the upper part of the automobile thrust rod product is two columnar rod bodies (also called handles) which are obliquely upwards at a certain angle. The finished product needs to be turned into a corrugated shape on the outer surfaces of the two rod bodies, so that a positioning hole is drilled at the end face of the rod bodies during machining and is used for positioning and clamping during the corrugated turning process. For example, the angle formed by the two rod bodies of the thrust rod is 49.37 degrees plus or minus 0.2 degrees, the tool angle needs to meet the adjustment requirement when the end face positioning hole is drilled, and the clamping stability is needed in the processing process.

In contrast, in the prior art, for example, a four-axis machining mode of a machining center (a special numerical control milling machine) is adopted, a workpiece is positioned and clamped, and then the workpiece is machined by utilizing the fourth axis angle indexing, so that the angle machining precision is ensured; but the processing center is matched with the fourth shaft to process the positioning holes of the two end faces, so that the equipment depreciation cost is high, and the cost of a single product is high.

For another example, a locating hole processing mechanism provided in the chinese patent of patent publication No. CN205996254U is used in combination with a bench drill (bench drilling machine), which has relatively low cost, but needs to process the end surfaces of two rod bodies separately twice, so that the labor intensity of repeatedly loading and unloading the workpiece is high, the working efficiency is low, and the fatigue of personnel is easily caused. And the angle adjusting mechanism and the clamping mechanism have the problems of inaccuracy and instability, and the requirements of the production of the high-efficiency and high-quality parts at present cannot be met.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the clamp for drilling the end face positioning hole by the thrust rod solves the problem that workpieces need to be assembled and disassembled repeatedly, reduces labor intensity of manual operation, improves precision of angle adjustment, improves clamping and fixing stability, and reduces machining cost.

According to the technical scheme, the utility model provides a clamp for drilling an end face positioning hole by a thrust rod, which comprises a bottom plate and a clamping seat; the bottom plate is vertically provided with a rotary seat plate at two side positions; the clamping seat comprises a back plate, two sides of the back plate are vertically provided with side plates, the back plate is sequentially provided with a center positioning block and a center pin shaft on the same side of the side plates, and the center pin shaft is in threaded connection with a locking nut; the clamping seat is positioned between the two rotary seat plates, and the side plates are rotationally connected with the rotary seat plates; at least one rotary seat board is provided with a pointer part, and at least one side board adjacent to the pointer part is provided with scales.

Preferably, auxiliary limiting frames are arranged at two sides above the backboard in an upward extending mode, and auxiliary limiting screw holes are formed in the auxiliary limiting frames and are connected with auxiliary limiting bolts in a threaded mode.

Preferably, the central positioning block is in the shape of a rounded triangular prism.

Preferably, the central pin shaft is also sleeved with a pressing plate, and the pressing plate is positioned between the lock nut and the central positioning block.

Preferably, the pressure plate has a notched slot on one side that runs through from the outside to the center.

Preferably, the rotating seat plate is provided with a rotating shaft hole, and the inner side of the rotating shaft hole is provided with a rotating bushing; the side plate is provided with a rotary pin shaft in an outward protruding mode, and the rotary pin shaft penetrates into the rotary bushing in a matched mode to form rotary connection.

Preferably, a locking screw hole is formed in the rotary seat plate, the locking screw hole penetrates through the rotary shaft hole from the outer side, and a locking bolt is connected in the locking screw hole in a threaded manner.

Preferably, the rotary seat plate is provided with an arc hole, the side plate is provided with a limit column in an outward protruding manner, and the limit column is positioned in the arc hole; the rotary seat plate is provided with jackscrew adjusting holes on two sides of the arc-shaped hole, the jackscrew adjusting holes penetrate through the arc-shaped hole from outside to inside, and the internal threads of the jackscrew adjusting holes are connected with limiting jackscrews.

Preferably, the scales are arranged in an arc line around the rotary pin shaft, and the middle positions of the scales are zero scale lines; when the central pin shaft is parallel to the bottom plate, the pointer part is positioned at the zero scale mark.

Preferably, the rotary seat board is of a split structure formed by combining two parts, and the dividing line of the two parts passes through the axle center of the rotary pin shaft; the part of one side of the dividing line protrudes from the part of the other side of the dividing line, and the protruding part forms a pointer part.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. the clamp for drilling the end face positioning holes by the thrust rod is more stable in clamping and more convenient and rapid to operate, can ensure that the angle precision between two drilled positioning holes is higher, and meets the requirement of high-quality production.

2. The clamp for drilling the end face positioning hole by the thrust rod can be used by matching with common general equipment such as a bench drill and the like, so that the processing cost is effectively saved, the production cost of a single part is reduced, and the actual occupied area of a production line is reduced.

3. The clamp for drilling the end face positioning hole of the thrust rod can realize visual angle adjustment through the scales and the pointer parts, and is more accurate and convenient to observe.

4. The clamp for drilling the end face positioning hole of the thrust rod can realize the rotation of the clamping seat in a sliding fit mode of the rotary bushing, and the rotation is more stable and is convenient to fix through the locking bolt.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of fig. 1 after clamping a workpiece.

Fig. 3 is a schematic view of the structure of fig. 2 at another angle.

Reference numerals in the drawings illustrate:

1. a bottom plate;

2. a clamping seat;

3. rotating the seat plate;

4. a back plate;

5. a side plate;

6. a center positioning block;

7. a center pin;

8. a lock nut;

9. a pointer section;

10. a scale;

11. an auxiliary limit frame;

12. auxiliary limit bolts;

13. a pressing plate;

14. a notch groove;

15. a rotation shaft hole;

16. rotating the bushing;

17. rotating the pin shaft;

18. locking the screw hole;

19. a locking bolt;

20. an arc-shaped hole;

21. a limit column;

22. limiting jackscrews;

A. a rod body;

l, dividing line.

Detailed Description

The utility model provides a clamp for drilling end face positioning holes by a push rod, which can avoid the problem of repeated loading and unloading of workpieces, reduce the labor intensity of manual operation, realize the one-time workpiece installation, and then drill the end face positioning holes on two rod bodies one by one through adjusting angles, improve the precision of angle adjustment, improve the clamping and fixing stability and reduce the processing cost.

Referring to fig. 1, the clamp for drilling an end face positioning hole by a thrust rod of the present utility model includes a base plate 1 for fixing and installing and a clamping seat 2 for clamping and rotating a thrust rod workpiece. The bottom plate 1 is provided with a plurality of through holes for installing connecting bolts, so that the bottom plate can be detachably fixed on a processing machine such as a bench drill. The base plate 1 is vertically provided with rotary base plates 3 at both side positions, and the two rotary base plates 3 are opposite. The clamping seat 2 comprises a back plate 4, side plates 5 are vertically and forwards arranged on the left side and the right side of the back plate 4, a center positioning block 6 and a center pin shaft 7 are sequentially arranged on the same side (namely the front side) of the side plates 5 on the back plate 4, and external threads are arranged on the outer side face of the center pin shaft 7 and are in threaded connection with locking nuts 8. The clamping seat 2 is positioned between the two rotary seat plates 3, and the side plates 5 are rotationally connected with the rotary seat plates 3. At least one rotary seat plate 3 is provided with a pointer 9, and at least one side plate 5 adjacent to the pointer 9 is provided with a scale 10.

Referring to fig. 2, when the clamp is used, the central hole of the thrust rod is sleeved in and sleeved outside the central positioning block 6 from the central pin shaft, and the locking nut 8 is screwed in and tightened, so that the thrust rod clamp can be fastened and fixed on the clamping seat 2. Firstly, the two rod bodies A are rotated one by one to be perpendicular to the bottom plate 1 for drilling end face positioning holes, the angles formed by the positioning holes drilled on the end faces of the two rod bodies A can be more accurately ensured to meet the requirements through scales 10 (the angles are definitely regulated in technical parameters of each type of thrust rod), and then the effect of improving the product quality is achieved.

In order to further ensure the clamping stability of the clamp, auxiliary limiting frames 11 are preferably arranged at two sides above the back plate 4 in an upward extending mode, and the auxiliary limiting frames 11 are provided with auxiliary limiting screw holes and are in threaded connection with auxiliary limiting bolts 12. After the workpiece is placed in, the rod body A at the rear side is positioned between the two auxiliary limiting frames 11, and the length of the exposed part at the inner side is adjusted by screwing the two auxiliary limiting bolts 12, so that the two sides of the rod body A are clamped and fixed.

The central pin shaft 7 is further sleeved with a pressing plate 13, the pressing plate 13 is located between the lock nut 8 and the central positioning block 6, the pressing plate 13 is in a circular plate shape with a through hole in the center, and the area of the pressing plate 13 can cover the periphery of the central hole of the thrust rod, so that the thrust rod is pressed between the pressing plate 13 and the back plate 4. It will be appreciated that it is possible to use only a lock nut 8 of sufficiently large outer diameter, or to use a spacer instead of the pressure plate 13, the advantage of using such a pressure plate 13 of a certain thickness being that smaller lock nuts 8 can be used and the fixation is more stable. It is further preferable that a notch 14 penetrating from the outside to the center is formed on one side of the pressing plate 13, so that the pressing plate 13 can be taken out from the side surface only by unscrewing the lock nut 8 without completely unscrewing the lock nut when the workpiece is removed, and then the thrust rod is removed; the same is true when installing the workpiece; therefore, the use is more convenient and quick.

The center positioning block 6 is preferably in a rounded triangular prism shape, the outline shape of the center positioning block is inscribed in the center hole of the thrust rod, the principle that a circle is determined by three points is utilized to ensure that the position of the thrust rod after being sleeved in is stable, and compared with a cylindrical block body, the center positioning block is smaller in contact area, smaller in friction force, more convenient in loading and unloading workpieces and more material-saving.

For the rotational connection between the clamping seat 2 and the swivel seat plate 3, a pivot connection is possible, preferably a sliding friction with swivel bushings. A rotating shaft hole 15 penetrating left and right is formed in the rotating seat plate 3, and a rotating bushing 16 is fixedly arranged on the inner side of the rotating shaft hole 15; the side plate 5 is provided with a rotary pin 17 protruding outwards at the corresponding position in the middle, and the rotary pin 17 penetrates into the rotary bushing 16 in a matched manner to form a rotary connection. The rotating seat plate 3 is provided with a locking screw hole 18, the locking screw hole 18 penetrates through the rotating shaft hole 15 from the outer side (for example, from top to bottom), and a locking bolt 19 is connected in the locking screw hole 18 in a threaded manner. The locking bolt 19 is screwed downwards, the lower end of the locking bolt presses the rotary bushing 16, and the friction between the rotary bushing 16 and the rotary pin 17 is increased, so that the rotation is prevented. It can be understood that the locking bolt 19 is not provided, and the rotary bushing which is fixed by manual hand or in a damping mode can be directly drilled, so that the locking is more convenient and stable by adopting the locking bolt 19.

In a further preferred embodiment, as shown in fig. 3, the rotating seat plate 3 is provided with an arc-shaped hole 20, and the circle center of the arc-shaped hole 20 is located at the axle center of the rotating pin 19. The side plate 5 is provided with a limiting column 21 protruding outwards, and the limiting column 21 is positioned in the arc-shaped hole 20, so that the rotation range of the clamping seat 2 is limited. The limiting posts 21 are, for example, detachable bolts, and can be screwed into or out of screw holes at corresponding positions of the side plates 5 through the arc-shaped holes 20, so that the assembly and disassembly are conveniently realized. More preferably, the rotary seat plate 3 is provided with a jack screw adjusting hole on two sides of the arc hole 20, and the jack screw adjusting hole is provided with an internal thread, and penetrates the arc hole 20 from outside to inside (for example, from the left side and the right side respectively), and the jack screw adjusting hole is internally threaded with a limit jack screw 22, so that the movable range of the limit post 21, that is, the rotation angle range of the clamping seat 2, can be changed by adjusting the length of the limit jack screw 22 exposed on the inner side. For example, for the processing of a batch of thrusting rods with the same model, the limiting jackscrews 22 can be adjusted according to the standard parameters, so that the two limit positions of the rotation of the clamping seat 2 respectively correspond to the condition that the two rod bodies A are vertical, and the use is more convenient and efficient.

The scale 10 is preferably arranged in a circular arc line around the rotary pin 17, and the middle position thereof is a zero scale line, and the scale range extends from two sides of the zero scale line. As shown in fig. 3, when the central pin 7 is parallel to the base plate 1, the pointer 9 is positioned on the zero scale line (in the figure, the scale 10 is only exposed on the upper half, and the scale line is also positioned on the lower shielded part). For example, if the angle standard between two rod bodies a of a certain thrust rod is 50 degrees, the thrust rod rotates 25 degrees in one direction on the basis of the centering position shown in fig. 3, and the pointer part 9 indicates the corresponding +25 degree scale mark, so that the rod body a is ensured to be vertical, and drilling is performed; then, the pointer 9 is rotated by 50 degrees in the opposite direction to indicate the scale mark of-25 degrees, and the other rod body A is vertical at this time, so that drilling is performed.

In a more preferred embodiment, the rotating seat plate 3 is a split structure formed by combining two parts, and the parting line L of the two parts passes through the axle center of the rotating pin 17, for example, the upper part and the lower part shown in fig. 3, so as to divide the rotating shaft hole 15 into two parts, thereby facilitating processing and installing/replacing the rotating bushing 16, and the upper part and the lower part are fixedly connected through bolts. The portion on one side (lower side) of the dividing line L protrudes from the portion on the other side (upper side) of the dividing line L, and the protruding portion forms the pointer portion 9, and the outline of the dividing line L serves as an indication line. This way is simple and smart in structure and does not require a separate pointer section 9. Naturally, the pointer 9 and the scale 10 may be displayed at corresponding angles, and the scope of the present utility model is not limited to the illustrated embodiment; for example, the scale 10 may be located above the rotary pin 17, and the lock bolt 19 may be provided with an upward pointer portion 9.

In summary, compared with the prior art, the clamp for drilling the end face positioning holes by the thrust rod is more stable in clamping and more convenient to operate, and can ensure that the angle precision between two drilled positioning holes is higher, thereby meeting the requirement of high-quality production. The device can be used by being matched with common general equipment such as a bench drill, so that the processing cost is effectively saved, the production cost of single parts is reduced, and the actual occupied area of a production line is reduced. Visual angle adjustment is achieved through the scales and the pointer parts, and the visual angle adjustment is more accurate and convenient to observe. The rotation of the clamping seat is realized by utilizing the sliding fit mode of the rotary bushing, and the rotation is more stable and is convenient to fix through the locking bolt.

Claims (10)

1. The clamp for drilling the end face positioning hole by the thrust rod is characterized by comprising a bottom plate (1) and a clamping seat (2); the bottom plate (1) is vertically provided with rotary seat plates (3) at two side positions; the clamping seat (2) comprises a back plate (4), side plates (5) are vertically arranged on two sides of the back plate (4), a center positioning block (6) and a center pin shaft (7) are sequentially arranged on the same side of the side plates (5) on the back plate (4), and a locking nut (8) is connected to the center pin shaft (7) in a threaded mode; the clamping seat (2) is positioned between the two rotary seat plates (3), and the side plates (5) are rotationally connected with the rotary seat plates (3); at least one of the rotary seat plates (3) is provided with a pointer part (9), and at least one of the side plates (5) adjacent to the pointer part (9) is provided with a scale (10).

2. The clamp for drilling end face positioning holes on the thrust rod according to claim 1, wherein auxiliary limiting frames (11) are arranged at two sides above the back plate (4) in an upward extending mode, and the auxiliary limiting frames (11) are provided with auxiliary limiting screw holes and are in threaded connection with auxiliary limiting bolts (12).

3. The clamp for drilling end face positioning holes of a thrust rod according to claim 1, characterized in that the central positioning block (6) is in the shape of a rounded triangular prism.

4. The clamp for drilling end face positioning holes on the thrust rod according to claim 1, wherein a pressing plate (13) is further sleeved on the center pin shaft (7), and the pressing plate (13) is located between the lock nut (8) and the center positioning block (6).

5. The jig for boring an end face positioning hole for a thrust rod according to claim 4, wherein the pressing plate (13) has a notch groove (14) penetrating from the outside to the center on one side.

6. The fixture for drilling end face positioning holes on a thrust rod according to any one of claims 1-5, characterized in that a rotating shaft hole (15) is formed on the rotating seat plate (3), and a rotating bushing (16) is arranged on the inner side of the rotating shaft hole (15); the side plates (5) are provided with rotary pin shafts (17) protruding outwards, and the rotary pin shafts (17) penetrate into the rotary bushings (16) in a matched mode to form rotary connection.

7. The clamp for drilling end face positioning holes on the thrust rod according to claim 6, wherein a locking screw hole (18) is formed in the rotary seat plate (3), the locking screw hole (18) penetrates through the rotary shaft hole (15) from the outer side, and a locking bolt (19) is connected in the locking screw hole (18) in a threaded mode.

8. The clamp for drilling end face positioning holes on a thrust rod according to any one of claims 1-5, characterized in that an arc-shaped hole (20) is formed in the rotary seat plate (3), a limit post (21) is arranged on the side plate (5) in an outward protruding manner, and the limit post (21) is positioned in the arc-shaped hole (20); the rotary seat board (3) is provided with jackscrew adjusting holes on two sides of the arc-shaped hole (20), the jackscrew adjusting holes penetrate through the arc-shaped hole (20) from outside to inside, and limiting jackscrews (22) are connected in the jackscrew adjusting holes in a threaded mode.

9. The clamp for drilling end face positioning holes of a thrust rod according to claim 6, characterized in that the scales (10) are arranged in a circular arc line around the rotary pin shaft (17), and the middle position of the scales (10) is a zero scale line; when the center pin shaft (7) is parallel to the bottom plate (1), the pointer part (9) is positioned on the zero scale line.

10. The clamp for drilling end face positioning holes on a thrust rod according to claim 6, characterized in that the rotary seat plate (3) is of a split structure formed by combining two parts, and the parting line of the two parts passes through the axle center of the rotary pin shaft (17); a portion of one side of the dividing line protrudes from a portion of the other side of the dividing line, and the protruding portion forms the pointer portion (9).

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