Multi-size pipe rod self-clamping tool

Abstract

The utility model discloses a multi-size pipe rod self-clamping tool which comprises a guide rod base, and a guide rod is installed on the top of the guide rod base. The bottom end of the guide rod cylinder and the top end of the guide rod are respectively provided with a linear bearing; the bottom end of the guide rod cylinder is connected with the flange plate, and the linear bearing is installed on the flange plate; the two ends of the reset spring are fixed to the guide rod base and the fixing base on the outer end face of the linear bearing respectively. The lower supporting arm is arranged at the top of the guide rod cylinder, and a connecting rod and an auxiliary arm are hinged to the lower supporting arm; one end of the connecting piece is hinged to the connecting rod; the utility model has the beneficial effects that the automatic adaptation and firm fixation of pipes and bars with different sizes are realized, the processing deviation is effectively avoided, and the processing precision and efficiency are improved; the clamping tool can effectively avoid machining deviation caused by infirm axial and radial fixation of circular pipes and bars during machining.

Description

Technical Field

[0001] This utility model belongs to the field of tube and bar clamping technology, specifically relating to a multi-size tube and bar self-clamping tool. Background Technology

[0002] In the metal processing industry, the processing of materials such as round tubes and bars usually requires effective axial and radial fixation to prevent deviations during processing. Traditional fixing methods often have problems such as unstable fixation and complicated operation, which affect processing accuracy and efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a multi-size tube and rod self-clamping tool that enables automatic adaptation and firm fixation of tubes and rods of different sizes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-size tube / bar self-clamping tool, comprising...

[0005] A guide rod base, wherein a guide rod is mounted on the top of the guide rod base;

[0006] A guide rod cylinder, wherein a linear bearing is installed at the bottom end of the guide rod cylinder and at the top end of the guide rod;

[0007] A flange is provided, and the bottom end of the guide rod cylinder is connected to the flange, and a linear bearing is mounted on the flange.

[0008] A return spring, the two ends of which are respectively fixed to the guide rod base and the fixed seat on the outer end face of the linear bearing;

[0009] The lower support arm is located at the top of the guide rod cylinder, and a connecting rod and an auxiliary arm are hinged to the lower support arm.

[0010] A connector, one end of which is hinged to a connecting rod;

[0011] A chain, one end of which is hinged to a connector and the other end of which is connected to a power source or a manual winch.

[0012] Preferably, the guide rod cylinder is provided with a return spring that is one size smaller than the return spring. One end of the smaller return spring inside the guide rod cylinder is fixed to the lower support arm, and the other end is in contact with the upper end of the guide rod.

[0013] Preferably, the connecting rod and the auxiliary arm are connected by a pin or a hinged bolt, and the pin or hinged bolt slides freely along the slot.

[0014] Preferably, the guide rod and the guide rod base are welded together, and the guide rod cylinder and the flange are welded together.

[0015] Preferably, it further includes a first pad plate disposed on the lower support arm and a first rubber pad disposed on the top of the first pad plate.

[0016] Preferably, the side surface of the first pad is provided with a first fastening lug, and the first fastening lug is detachably connected to the lower support arm.

[0017] Preferably, it also includes a second pad disposed on the connecting rod, and the bottom of the second pad is provided with a second rubber pad.

[0018] Preferably, it also includes a third pad disposed on the auxiliary arm, and the bottom of the third pad is provided with a third rubber pad.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] It achieves automatic adaptation and firm fixation for pipes and bars of different sizes, effectively avoiding processing deviations and improving processing accuracy and efficiency; the clamping tool can effectively avoid processing deviations caused by the axial and radial insecure fixation of round pipes and bars during processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 3 For the present utility model Figure 1 A schematic diagram of the enlarged structure of region M in the diagram;

[0024] In the diagram: 1. Guide rod base; 2. Lower support arm; 21. First pad; 210. First rubber pad; 211. First fastening lug; 3. Connecting rod; 31. Second pad; 310. Second rubber pad; 4. Auxiliary arm; 41. Third pad; 410. Third rubber pad; 5. Linear bearing; 6. Connector; 7. Chain; 8. Return spring; 9. Guide rod; 10. Guide rod cylinder; 11. Flange. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1-3This is the first embodiment of the present invention, which provides a multi-size tube / bar self-clamping tool, including...

[0028] Guide rod base 1, and a guide rod 9 is installed on the top of the guide rod base 1. The guide rod 9 is made of tempered steel and is welded to the guide rod base 1, so that the guide rod 9 and the guide rod base 1 are firmly fixed.

[0029] A linear bearing 5 is installed at the bottom end of the guide rod cylinder 10 and at the top end of the guide rod 9, thus realizing the addition of the linear bearing 5. The internal linear bearing 5 is installed and fixed at the top end of the guide rod 9.

[0030] The bottom end of the guide rod cylinder 10 is connected to the flange 11, and the linear bearing 5 is mounted on the flange 11.

[0031] The return spring 8 has its two ends fixed to the guide rod base 1 and the fixed seat on the outer end face of the linear bearing 5, respectively. The guide rod cylinder 10 is equipped with a return spring that is one size smaller than the return spring 8. One end of the smaller return spring in the guide rod cylinder 10 is fixed to the lower support arm 2, and the other end contacts the upper end of the guide rod 9, working together to clamp the workpiece. The double linear bearing 5 ensures good coaxiality when the guide rod 9 moves during the workpiece clamping process, reducing wear.

[0032] The lower support arm 2 is located at the top of the guide tube 10. The guide tube 10 increases the support for the lower support arm 2. The lower support arm 2 is hinged with a connecting rod 3 and an auxiliary arm 4. Under the elastic force of the strong return spring 8, the lower support arm 2, together with the connecting rod 3 and the auxiliary arm 4, clamps the workpiece.

[0033] Connector 6, one end of which is hinged to connecting rod 3;

[0034] Chain 7, one end of which is hinged to connector 6, and the other end is connected to a power source or manual winch, is used to compress the spring force to facilitate loading and unloading of workpieces.

[0035] In this embodiment, preferably, the connecting rod 3 and the auxiliary arm 4 are connected by a pin or a hinged bolt, and the pin or hinged bolt can slide freely along the slot, increasing the convenience of use.

[0036] In this embodiment, preferably, the guide rod cylinder 10 and the flange 11 are welded together, so that the guide rod cylinder 10 and the flange 11 are firmly fixed.

[0037] Example 2

[0038] Please see Figures 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment, but differs in that:

[0039] It also includes a first pad 21 disposed on the lower support arm 2, which realizes the addition of the first pad 21, and a first rubber pad 210 disposed on the top of the first pad 21, which increases the support of the first rubber pad 210; the side surface of the first pad 21 is provided with a first fastening ear 211, which realizes the addition of the first fastening ear 211, and the first fastening ear 211 and the lower support arm 2 are connected by screws, so that the first fastening ear 211 and the lower support arm 2 are firmly fixed, thereby realizing the stable installation of the first pad 21.

[0040] It also includes a second pad 31 set on the connecting rod 3, which realizes the addition of the second pad 31, and a second rubber pad 310 is set at the bottom of the second pad 31, which increases the support of the second rubber pad 310.

[0041] It also includes a third pad 41 set on the auxiliary arm 4, which realizes the addition of the third pad 41, and a third rubber pad 410 is set at the bottom of the third pad 41, which increases the support of the third rubber pad 410.

[0042] When the lower arm 2, connecting rod 3, and auxiliary arm 4 clamp the workpiece, the clamping performance is further enhanced by the cooperation of the first rubber pad 210, the second rubber pad 310, and the third rubber pad 410, and the wear of the workpiece is reduced during the clamping process. When the first rubber pad 210, the second rubber pad 310, and the third rubber pad 410 are worn, they can be disassembled and replaced.

[0043] The working principle and usage process of this utility model are as follows: When it is necessary to clamp a workpiece, one end of the chain 7 is connected to a power source or manual winch, and the other end is hinged to the connecting rod 3 through the connecting piece 6. Pulling the chain 7 causes the connecting rod 3 and the auxiliary arm 4 to move inward under the elastic force of the return spring 8, which simultaneously drives the lower support arm 2 to clamp the workpiece. Since the connecting rod 3 and the auxiliary arm 4 are connected by a pin or a hinged hole bolt and can slide freely along the groove, the clamping position and force can be adjusted according to the size of the workpiece. The smaller return spring inside the guide rod cylinder 10 works in conjunction with the external return spring 8 to further enhance the stability and force of the clamping. When the connecting rod 3 and the auxiliary arm 4 move inward, the return spring inside the guide rod cylinder 10 is also compressed, which together with the external return spring 8 generates a clamping force on the workpiece.

[0044] Although embodiments of the present invention have been shown and described in detail above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-size tube / bar self-clamping tool, characterized in that: include Guide rod base (1), and a guide rod (9) is installed on the top of the guide rod base (1). A guide rod cylinder (10) is provided with a linear bearing (5) installed at the bottom end of the guide rod cylinder (10) and at the top end of the guide rod (9). Flange (11), the bottom end of the guide rod cylinder (10) is connected to the flange (11), and the linear bearing (5) is installed on the flange (11); The two ends of the return spring (8) are respectively fixed on the guide rod base (1) and the fixed seat on the outer end face of the linear bearing (5); The lower support arm (2) is located at the top of the guide rod cylinder (10), and a connecting rod (3) and an auxiliary arm (4) are hinged on the lower support arm (2). Connector (6), one end of which is hinged to connecting rod (3); Chain (7), one end of which is hinged to connector (6), and the other end is connected to power source or manual winch.

2. The multi-size tube / bar self-clamping tool according to claim 1, characterized in that: The guide rod cylinder (10) is equipped with a return spring that is one size smaller than the return spring (8). One end of the smaller return spring inside the guide rod cylinder (10) is fixed on the lower support arm (2), and the other end is in contact with the upper end of the guide rod (9).

3. The multi-size tube / bar self-clamping tool according to claim 1, characterized in that: The connecting rod (3) and the auxiliary arm (4) are connected by a pin or a hinged hole bolt, and the pin or hinged hole bolt slides freely along the slot.

4. The multi-size tube / bar self-clamping tool according to claim 1, characterized in that: The guide rod (9) and the guide rod base (1) are welded together, and the guide rod cylinder (10) and the flange (11) are welded together.

5. The multi-size tube / bar self-clamping tool according to claim 1, characterized in that: It also includes a first pad (21) disposed on the lower support arm (2) and a first rubber pad (210) disposed on the top of the first pad (21).

6. A multi-size tube / bar self-clamping tool according to claim 5, characterized in that: The first pad (21) has a first fastening ear (211) on its side surface, and the first fastening ear (211) and the lower support arm (2) are detachably connected.

7. The multi-size tube / bar self-clamping tool according to claim 1, characterized in that: It also includes a second pad (31) disposed on the connecting rod (3), and a second rubber pad (310) is disposed at the bottom of the second pad (31).

8. A multi-size tube / bar self-clamping tool according to claim 1, characterized in that: It also includes a third pad (41) disposed on the auxiliary arm (4), and a third rubber pad (410) is disposed at the bottom of the third pad (41).

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