Clamp holder for bolt machining

Abstract

The utility model discloses a clamp holder for bolt processing, which comprises a frame, one side of the frame is in sliding fit with a push rod, and the other side of the frame is connected with a chuck; the push rod moves in the rack to drive the chucks to move towards each other or move away from each other, so that the chucks are opened or closed; each chuck comprises a main body part, a clamping part is arranged at one end of each main body part, a shaft pin part is arranged at the other end of each main body part, and the shaft pin parts are sleeved with annular springs so that the chucks can turn over along the main body parts. One end of the pushing rod slides towards the outside of the rack to promote the chucks to be opened, the chucks can be unfolded, so that bolt heads can conveniently enter the chucks, meanwhile, along with continuous movement of the pushing rod, the unfolding size of the chucks can be gradually enlarged, and then the equipment can clamp bolts of various sizes; and when one end of the push rod moves in the rack, the chucks are promoted to oppositely move and tighten, so that the head of the bolt is clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt processing equipment technical field, specifically is a kind of clamping device for bolt processing. BACKGROUND

[0002] Bolt is indispensable fastener in production and life, it is very common in mechanical manufacturing industry, is indispensable standard piece in aviation, aerospace, automobile, ship and other fields, application is very wide, market demand is great.In prior art, the processing of bolt clamping, a set of tooling can only produce the same specification of same type bolt, it is not practical for different size bolt clamping, poor universality, and the stability after clamping is poor. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of clamping device for bolt processing to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of clamping device for bolt processing, including rack, the side of the rack is slidably connected with push rod, and the other side of the rack is connected with chuck;The number of the chuck is multiple, and is circumferentially arrayed on the push rod, moves in the rack by the push rod, to drive each chuck to move towards each other or move away from each other, to realize that the chuck opens or closes;The chuck includes main part, the one end of the main part is equipped with clamping part, and the other end of the main part is equipped with shaft pin part, and is equipped with annular spring on the shaft pin part, to make the shaft pin part of each chuck overturn along the support portion provided on the push rod.

[0005] As a preferred technical scheme of the utility model: the outer wall surface of the shaft pin part is further equipped with the mounting groove for installing the annular spring.

[0006] As a preferred technical scheme of the utility model: the inner wall surface of the shaft pin part is further equipped with ring groove, and the ring groove is buckled on the outside of the support portion.

[0007] As a preferred technical scheme of the utility model: the inner wall surface of the clamping part is further equipped with abutting surface.

[0008] As a preferred technical scheme of the utility model: the outer side of the shaft pin part is further equipped with cutting surface.

[0009] As a preferred technical scheme of the utility model: the side of the shaft pin part facing the push rod is further equipped with avoiding surface.

[0010] As a preferred technical scheme of the utility model: the support portion is further equipped with top rod, and the head of bolt is tightly pressed in the chuck by the top rod.

[0011] As a preferred technical scheme of the utility model: the top rod is connected with the connecting hole through the connecting column, and rotates in the connecting hole through the connecting column to adjust the distance between the top rod and the outer end surface of the chuck.

[0012] The utility model discloses the beneficial effects of the above technical scheme are: the one end of push rod slides to the frame outside, can promote the opening action of chuck to be completed, since the chuck can be unfolded, the bolt head is convenient to enter the inside of chuck, along with the continuous movement of push rod, so that the unfolding size of chuck can gradually enlarge, and then make the equipment can hold the bolt of various sizes, when the one end of push rod moves in the frame, promote the chuck to be tight, to realize the head clamping of bolt. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is cross section structure schematic diagram of the utility model chuck and push rod;

[0014] Figure 2 It is exploded structure schematic diagram of the utility model chuck and push rod;

[0015] Figure 3 It is one side structure schematic diagram of the utility model chuck;

[0016] Figure 4 It is the structure schematic diagram of the other side of the utility model chuck;

[0017] Figure 5 It is the state schematic diagram of chuck after push rod in frame tight.

[0018] In the drawing: 1, push rod;2, annular spring;3, chuck;30, main part;31, abutting surface;32, tangent plane;33, ring groove;34, avoiding surface;35, installation groove;36, clamping portion;37, shaft pin portion;4, top rod;5, support portion;6, connecting hole;7, connecting column;8, frame. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to be illustrative of the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be construed as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0020] Referring to Figures 1-5 The utility model provides an embodiment: a kind of chuck for bolt processing, including rack 8, the one side of rack 8 is equipped with push rod 1 sliding fit, and the other side of rack 8 is equipped with chuck 3 connection;The number of chuck 3 is multiple, and is circumferentially arrayed on push rod 1, moves in rack 8 by push rod 1, to drive each chuck 3 between moving towards each other or moving away from each other, to realize that chuck 3 opens or closes;Chuck 3 includes main part 30, the one end of main part 30 is equipped with clamping part 36, and the other end of main part 30 is equipped with shaft pin part 37, and is set on shaft pin part 37 by being equipped with annular spring 2, to make the shaft pin part 37 of each chuck 3 overturn along the support part 5 equipped on push rod 1.

[0021] As described above, by sliding the one end of push rod 1 to the outside of rack 8, each chuck 3 can be moved away from each other to open the chuck 3, since the chuck 3 can be expanded, the bolt head can be easily inserted into the interior of the chuck 3, and as the push rod 1 continues to move, the expanded size of the chuck 3 can be gradually enlarged, thereby allowing the device to clamp bolts of various sizes. When the one end of the push rod 1 moves into the rack 8, each chuck 3 moves towards each other to tighten, thereby clamping the head of the bolt.

[0022] At the same time, since the outer wall surface of the shaft pin part 37 is also provided with a mounting groove 35 for mounting the annular spring 2, the annular spring 2 can be limited by the mounting groove 35 to avoid displacement of the annular spring 2 under stress. Since the annular spring 2 does not move during the stress process, the opening and closing actions of each chuck 3 can be stably and reliably completed.

[0023] Further, since the inner wall surface of the shaft pin part 37 is also provided with a ring groove 33, and the ring groove 33 is buckled on the outside of the support part 5; wherein the width of the ring groove 33 is greater than the width of the support part 5, so that each chuck 3 can be smoothly unfolded and closed, and at the same time the inner wall surface of the support part 5 can be in contact with the inner wall surface of the ring groove 33, so as to avoid the spread of each chuck 3, and at the same time make the push rod 1 can stably and reliably drive each chuck 3 to complete the corresponding action.

[0024] Similarly, the outer side surface of the shaft pin part 37 is also provided with a cutting surface 32, so that there is enough gap between the outer wall surfaces of each chuck 3, so that during the completion of the corresponding action of each chuck 3, the opposite surfaces of each chuck 3 will not interfere with each other, thereby enabling the clamp to smoothly clamp the bolt.

[0025] In addition, since the side of the shaft pin part 37 facing the push rod 1 is also provided with a clearance surface 34, so that when each chuck 3 is opened, the side facing the push rod 1 has enough space to move, so as to facilitate the opening action of each chuck 3.

[0026] In summary, by optimizing the structure of the chuck 3, the chucks 3 can smoothly and stably complete the unfolding or closing action.

[0027] Since the inner wall surface of the clamping part 36 is also provided with an abutting surface 31, when the bolt head contacts the abutting surface 31, it can prevent the bolt head from moving outward, and it can also increase the contact area between the clamping part 36 and the bolt head, thereby improving the stability of the bolt after clamping.

[0028] On the basis of the above scheme, since the support part 5 is also provided with a top rod 4, and the head of the bolt is clamped in the chuck 3 by the top rod 4. When the bolt head enters the chuck 3, the top rod 4 is used to clamp the bolt head, which can further improve the stability of the bolt in the chuck 3, so that the position of the bolt is stable and reliable during processing, thereby improving the processing precision and processing quality of the bolt.

[0029] In order to adjust the force of the ejector rod 4 to the bolt head, the ejector rod 4 is connected with the connecting hole 6 through the connecting column 7, and rotates in the connecting hole 6 through the connecting column 7, so as to adjust the distance between the ejector rod 4 and the outer end surface of the clamp head 3. Specifically, the connecting column 7 is connected with the connecting hole 6, when the connecting column 7 is counterclockwise rotated, the connecting column 7 can move into the connecting hole 6, so as to expand the distance between the end surface of the ejector rod 4 and the outer end surface of the clamp head 3, and then reduce the force of the ejector rod 4 to the bolt head; conversely, the connecting column 7 is counterclockwise rotated, at this time, the connecting column 7 moves to the outside of the connecting hole 6, so as to reduce the distance between the end surface of the ejector rod 4 and the outer end surface of the clamp head 3, and then increase the force of the ejector rod 4 to the bolt head. Wherein, the bolt head is an important component of the bolt, and usually refers to the structure part of the bolt top for applying torque to tighten or loosen the bolt.

[0030] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall into the protection scope of the utility model.

Claims

1. A clamp for bolt processing, characterized in that: Includes a frame (8), one side of which is slidably engaged with a push rod (1), and the other side of which is connected to a clamp (3); The number of the clamps (3) is multiple and they are arranged in a circular array on the push rod (1). The push rod (1) moves within the frame (8) to drive the clamps (3) to move towards each other or away from each other, so as to open or close the clamps (3). The chuck (3) includes a main body (30), one end of which is provided with a clamping part (36), and the other end of which is provided with a pivot pin (37). A ring spring (2) is provided and sleeved on the pivot pin (37) so that the pivot pin (37) of each chuck (3) can be rotated along the support part (5) provided on the push rod (1).

2. The clamp for bolt processing according to claim 1, characterized in that: The outer wall surface of the pin portion (37) is also provided with a mounting groove (35) for mounting the annular spring (2).

3. The clamp for bolt processing according to claim 1, characterized in that: The inner wall surface of the pin portion (37) is also provided with an annular groove (33), and the annular groove (33) is fastened to the outside of the support portion (5).

4. A clamp for bolt processing according to claim 1, characterized in that: The inner wall surface of the clamping part (36) is also provided with an abutting surface (31).

5. A clamp for bolt processing according to claim 1, characterized in that: The outer side of the pin portion (37) is also provided with a cut surface (32).

6. A clamp for bolt processing according to claim 1, characterized in that: The side of the pin (37) facing the push rod (1) is also provided with a clearance surface (34).

7. A clamp for bolt processing according to any one of claims 1-6, characterized in that: The support part (5) is also provided with a top rod (4), and the head of the bolt is pressed into the clamp (3) by the top rod (4).

8. A clamp for bolt processing according to claim 7, characterized in that: The top rod (4) is connected to the connecting hole (6) via the connecting post (7), and rotates within the connecting hole (6) via the connecting post (7) to adjust the distance between the top rod (4) and the outer end face of the chuck (3).

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