A screw clamping device for an automatic screw fastening machine

Abstract

The utility model relates to the technical field of screw fastening, and specifically to a screw clamping device for an automatic screw fastening machine, including a screw fastening machine, the screw fastening machine is provided with a rotatable cutter head, the cutter head can engage with a screw, a fastening assembly is detachably connected to the cutter head, a clamping piece is also provided on the fastening piece, and the clamping piece is used to clamp the screw; the clamping piece includes a sliding ring slidably connected to the clamping piece, a spring is provided between the sliding ring and the fastening piece, and two symmetrical elastic clamping rods are fixed on the sliding ring, and the clamping rods are bent. Through the fastening assembly provided, it can be carried in a split type and assembled during work, the fastening assembly is tightly fixed to the cutter head, and the screw is clamped and fixed by two clamping rods in the clamping piece. The utility model adopts a detachable design, has a simple structure, can clamp and fix the screw during work, and is easy to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of screw fastening, in particular to a screw clamping device for an automatic screw fastening machine. Background Art

[0002] A screw tightening machine is a device that automatically tightens screws into corresponding screw holes. Compared with manual tightening, it speeds up work efficiency and improves the consistency of tightening. It is suitable for scenarios that require large-scale screw tightening.

[0003] When the screw tightening machine rotates the screw, the screw needs to be fixed to prevent the screw from deflecting during the rotation process. The prior art often sets an adsorption mechanism to fix the screw, but the device structure is relatively complex and the volume is large, which is not convenient to carry and use. Utility Model Content

[0004] The utility model aims to provide a screw clamping device for an automatic screw fastening machine to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A screw clamping device for an automatic screw tightening machine comprises a screw tightening machine, wherein the screw tightening machine is provided with a rotatable cutter head, the cutter head can engage with a screw, a fastening assembly is detachably connected to the cutter head, a clamping piece is also provided on the fastening assembly, and the clamping piece is used to clamp the screw; the clamping piece comprises a sliding ring slidably connected to the clamping piece, a spring is provided between the sliding ring and the fastening assembly, and two symmetrical elastic clamping rods are fixedly provided on the sliding ring, and the clamping rods are bent.

[0007] Furthermore, the fastening assembly includes a fastening rod, which is provided with a first sliding groove adapted to the cutter head, and the fastening rod is provided with a plurality of first ball grooves connected to the first sliding groove, each of which is provided with a limiting ball, and the fastening rod is also provided with a locking member for locking the limiting ball.

[0008] Furthermore, the locking member comprises a locking ring threadedly connected to the fastening rod, an inclined placement cavity is provided in the locking ring, and the limiting ball is located between the first ball groove and the placement cavity.

[0009] Furthermore, a second ball groove corresponding to the limiting ball is formed on the cutter head.

[0010] Furthermore, the fastening rod is provided with an annular groove, the fastening rod is also provided with a second sliding groove connected to the groove, the sliding ring is also provided with a slider adapted to the second sliding groove, the slider is slidably connected in the second sliding groove, a spring is fixedly connected between the side wall of the groove and the sliding ring, and the spring is interspersed on the fastening rod.

[0011] Furthermore, the clamping rod is made of polycarbonate.

[0012] Furthermore, a plurality of convex strips arranged at intervals are provided at the portion where each clamping rod contacts the screw.

[0013] In the above technical solution, the screw clamping device of an automatic screw fastening machine provided by the utility model has the beneficial effects of:

[0014] The fastening assembly can be carried in a split form and assembled during work. The fastening assembly is tightly fixed on the cutter head, and the screw is clamped and fixed by two clamping rods in the clamping member. The rotation of the cutter head drives the fastening assembly to rotate synchronously. The rotation of the fastening assembly drives the clamping rod to rotate synchronously through the sliding ring, thereby reducing the wear of the screw and the clamping rod. When the screw is rotated to the position clamped by the clamping rod, the clamping rod abuts against the surface where the screw is fixed, thereby driving the sliding ring to slide and compressing the spring until the screw is completely tightened. The utility model adopts a detachable design, has a simple structure, can clamp and fix the screw during work, and is easy to carry.

[0015] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0016] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of an explosion structure provided for an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of a cutter head provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of the clamping member provided in an embodiment of the utility model;

[0022] Figure 5 A schematic cross-sectional view of an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Cutter head; 11. Second ball groove; 2. Fastening assembly; 21. Fastening rod; 22. First sliding groove; 23. First ball groove; 24. Limiting ball; 25. Slot; 26. Second sliding groove; 3. Clamping piece; 31. Sliding ring; 32. Spring; 33. Clamping rod; 34. Sliding block; 35. Raised strip; 4. Locking piece; 41. Locking ring; 42. Placement cavity. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0026] See also Figure 1-5 A screw clamping device for an automatic screw tightening machine comprises a screw tightening machine, the screw tightening machine is provided with a rotatable cutter head 1, the cutter head 1 can engage with a screw, a fastening assembly 2 is detachably connected to the cutter head 1, the fastening assembly 2 is also provided with a clamping member 3, the clamping member 3 is used to clamp the screw; the clamping member 3 comprises a sliding ring 31 slidably connected to the clamping member 3, a spring 32 is provided between the sliding ring 31 and the fastening assembly 2, two symmetrical elastic clamping rods 33 are fixedly provided on the sliding ring 31, and the clamping rods 33 are bent.

[0027] The rotation of the cutter head 1 can be driven by a motor provided on the screw tightening machine.

[0028] The fastening assembly 2 can be carried in a split form and assembled during work. The fastening assembly 2 is tightly fixed on the cutter head 1, and the screw is clamped and fixed by two clamping rods 33 in the clamping member 3. The cutter head 1 rotates to drive the fastening assembly 2 to rotate synchronously. The fastening assembly 2 rotates to drive the clamping rod 33 to rotate synchronously through the sliding ring 31, thereby reducing the wear of the screw and the clamping rod 33. When the screw rotates to the position clamped by the clamping rod 33, the clamping rod 33 abuts against the surface where the screw is fixed, thereby driving the sliding ring 31 to slide and compressing the spring 32 until the screw is completely tightened. The utility model adopts a detachable design, has a simple structure, can clamp and fix the screw during work, and is easy to carry.

[0029] Furthermore, the fastening assembly 2 includes a fastening rod 21, on which a first sliding groove 22 adapted to the cutter head 1 is formed, and a plurality of first ball grooves 23 connected to the first sliding grooves 22 are formed in the fastening rod 21, and each of the first ball grooves 23 is provided with a limiting ball 24, and the fastening rod 21 is also provided with a locking member 4 for locking the limiting ball 24. The first sliding groove 22 of the fastening rod 21 is aligned with the cutter head 1 and inserted, and the limiting ball 24 is pressed inwardly by the locking member 4, so that the limiting ball 24 is tightly attached to the outer surface of the cutter head 1, thereby fixing the fastening rod 21 on the cutter head 1. The structure is simple, and installation and disassembly are simple.

[0030] Furthermore, the locking member 4 includes a locking ring 41 threadedly connected to the fastening rod 21, and an inclined placement cavity 42 is provided in the locking ring 41, and the limiting ball 24 is located between the first ball groove 23 and the placement cavity 42. When the locking ring 41 is rotated to move toward the screw fastening machine, the placement cavity 42 cooperates with the first ball groove 23 to squeeze the limiting ball 24 inward, thereby locking the cutter head 1, and when the locking ring 41 is rotated to move toward the end of the cutter head 1, the limiting ball 24 moves outward, thereby releasing the lock on the cutter head 1.

[0031] Furthermore, the cutter head 1 is provided with a second ball groove 11 corresponding to the limiting ball 24. The limiting ball 24 moves inwardly so that the limiting ball 24 is aligned with the second ball groove 11, which can further enhance the locking effect of the cutter head 1 and reduce the slippage phenomenon when the cutter head 1 drives the fastening rod 21.

[0032] Furthermore, the fastening rod 21 is provided with an annular groove 25, and the fastening rod 21 is also provided with a second sliding groove 26 connected to the groove 25. The sliding ring 31 is also provided with a slider 34 adapted to the second sliding groove 26, and the slider 34 is slidably connected in the second sliding groove 26. A spring 32 is fixedly connected between the side wall of the groove 25 and the sliding ring 31, and the spring 32 is interspersed on the fastening rod 21.

[0033] Furthermore, the clamping rod 33 is made of polycarbonate, which is a hard material and has elasticity.

[0034] Furthermore, the part where each clamping rod 33 contacts the screw is provided with a plurality of spaced convex strips 35. The convex strips 35 abut against the screw to increase the friction with the screw, so as to improve the clamping effect on the screw.

[0035] Working principle:

[0036] The fastening assembly 2 is provided, and can be carried in a split type, and then assembled during work, the first sliding groove 22 of the fastening rod 21 is aligned with the cutter head 1 and inserted, the locking ring 41 is rotated to move in the direction of the screw fastening machine, and the placement cavity 42 cooperates with the first ball groove 23 to squeeze the limiting ball 24 inward, so that the limiting ball 24 abuts against the second ball groove 11 on the cutter head 1, thereby fixing the fastening rod 21 on the cutter head 1, and then the screw is clamped and fixed by the two clamping rods 33 in the clamping member 3, the cutter head 1 rotates to drive the fastening rod 21 to rotate synchronously, and the fastening rod 21 rotates through the sliding ring 31 to drive the clamping rod 33 to rotate synchronously, when the screw rotates to the position clamped by the clamping rod 33, the end of the clamping rod 33 abuts against the surface where the screw is fixed, thereby driving the sliding ring 31 to slide, and compressing the spring 32 until the screw is completely tightened. The utility model adopts a detachable design, has a simple structure, can clamp and fix the screw during work, and is easy to carry.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A screw clamping device for an automatic screw tightening machine, comprising a screw tightening machine, wherein the screw tightening machine is provided with a rotatable cutter head (1), wherein the cutter head (1) can be engaged with a screw, and wherein: The cutter head (1) is detachably connected to a fastening assembly (2), and the fastening assembly (2) is also provided with a clamping member (3), and the clamping member (3) is used to clamp a screw; The clamping member (3) comprises a sliding ring (31) slidably connected to the clamping member (3), a spring (32) is provided between the sliding ring (31) and the fastening assembly (2), and two symmetrical elastic clamping rods (33) are fixedly provided on the sliding ring (31), and the clamping rods (33) are bent.

2. The screw clamping device of an automatic screw fastening machine according to claim 1, characterized in that: The fastening assembly (2) comprises a fastening rod (21), the fastening rod (21) is provided with a first sliding groove (22) adapted to the cutter head (1), the fastening rod (21) is provided with a plurality of first ball grooves (23) connected to the first sliding grooves (22), each of the first ball grooves (23) is provided with a limiting ball (24), and the fastening rod (21) is also provided with a locking member (4) for locking the limiting ball (24).

3. The screw clamping device of an automatic screw fastening machine according to claim 2, characterized in that: The locking member (4) comprises a locking ring (41) threadedly connected to the fastening rod (21), an inclined placement cavity (42) is provided in the locking ring (41), and the limiting ball (24) is located between the first ball groove (23) and the placement cavity (42).

4. The screw clamping device of an automatic screw fastening machine according to claim 2, characterized in that: The cutter head (1) is provided with a second ball groove (11) corresponding to the limiting ball (24).

5. The screw clamping device of an automatic screw fastening machine according to claim 2, characterized in that: The fastening rod (21) is provided with an annular slot (25), and the fastening rod (21) is also provided with a second sliding slot (26) connected with the slot (25). The sliding ring (31) is also provided with a sliding block (34) adapted to the second sliding slot (26), and the sliding block (34) is slidably connected in the second sliding slot (26). A spring (32) is fixedly connected between the side wall of the slot (25) and the sliding ring (31), and the spring (32) is inserted and arranged on the fastening rod (21).

6. The screw clamping device of an automatic screw fastening machine according to claim 1, characterized in that: The clamping rod (33) is made of polycarbonate.

7. The screw clamping device of an automatic screw fastening machine according to claim 1, characterized in that: The position where each clamping rod (33) contacts the screw is provided with a plurality of convex strips (35) arranged at intervals.

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