Tool clamp for transmission rotating shaft

Abstract

The utility model relates to the technical field of tool clamps, and discloses a tool clamp for a transmission rotating shaft, which comprises a tool body, a locking plate and a connecting component, two positioning holes are arranged on the tool body, the positioning holes are matched with the excircle surface of a rotating part on the transmission rotating shaft for positioning, and the locking plate is arranged on the tool body. A first positioning piece and a second positioning piece are arranged on the tool body, the first positioning piece is used for positioning the outer edge of a transmission lug on a transmission rotating shaft, the second positioning piece is used for positioning a connecting hole, and the first positioning piece and the second positioning piece are respectively arranged corresponding to one positioning hole. Two through holes are formed in the locking plate and matched with the other rotating part on the transmission rotating shaft, the connecting assembly is used for connecting the locking plate and the tool body to fix the transmission rotating shaft, synchronous machining of two parts can be achieved through one-time clamping, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling and fixture for a transmission shaft. Background Technology

[0002] Transmission shafts are used in parts that require rotation, such as pneumatic grippers. A transmission shaft typically has a transmission lug, a rotating part, and a connecting part formed from the center outwards on both sides. During machining, a workpiece blank is usually cast first, and then key parts are machined to obtain the finished transmission shaft. The parts requiring machining include the connecting part, the rotating part, the connecting end face of the transmission lug near the rotating part, and the connecting hole on the connecting lug. For example, in the transmission shaft disclosed in application number CN202322055561.9, the rotating spindles on both sides of the transmission rod lug and the connecting hole on the connecting lug all require coaxiality. Existing tooling fixtures require repeated clamping, making machining inconvenient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tooling fixture for transmission shafts, which reduces the number of clamping operations and improves machining accuracy.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A tooling fixture for a transmission shaft, comprising:

[0006] The tooling body has two positioning holes, which mate with the outer circular surface of the rotating part on the transmission shaft for positioning. The tooling body is equipped with a first positioning element and a second positioning element. The first positioning element positions the outer edge of the transmission lug on the transmission shaft, and the second positioning element positions the connecting hole. The first and second positioning elements are respectively positioned corresponding to one of the positioning holes.

[0007] A locking plate has two through holes, which engage with another rotating part on the transmission shaft.

[0008] A connecting assembly for connecting a locking plate and a tooling body to secure the drive shaft.

[0009] Furthermore, the connection component includes

[0010] A connecting screw is fixedly connected to the tooling body and positioned between the two positioning holes. A locking plate is sleeved on the connecting screw.

[0011] A locking nut is threadedly connected to the connecting screw to fix the two drive shafts between the locking plate and the tooling body.

[0012] Furthermore, a positioning boss is formed on the tooling body, which is used to provide support for the connecting end face.

[0013] Furthermore, the first positioning element includes a positioning pin, the side of which contacts and positions itself against the outer contour of the transmission lug.

[0014] Furthermore, the second positioning element includes a positioning pin, the outer side of which contacts and positions itself in contact with a connecting hole on a transmission lug.

[0015] Furthermore, a guide portion is formed on the top of the positioning pin.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides two positioning holes on the tooling body, which allows two workpieces to be clamped at a time, facilitating the simultaneous processing of two transmission shafts and improving work efficiency. At the same time, the two positioning holes are respectively provided with a first positioning element and a second positioning element, which are adapted to workpieces with different processing steps, thereby improving processing accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure label:

[0021] 1. Tooling body; 101. Positioning hole; 102. Positioning boss; 11. First positioning component; 12. Second positioning component; 2. Locking plate; 3. Connecting nut; 4. Connecting screw; 5. Transmission shaft. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2 As shown in the figure, a tooling fixture for a transmission shaft in this embodiment includes a tooling body 1, a locking plate 2, and a connecting assembly.

[0026] The tooling body 1 has two positioning holes 101. In this embodiment, the number of positioning holes 101 can be increased as needed, specifically to an even number, to facilitate synchronous machining of both ends of the transmission shaft. The positioning holes 101 are positioned by engaging with the outer circular surface of the rotating part on the transmission shaft. The tooling body 1 is provided with a first positioning element 11 and a second positioning element 12. The first positioning element 11 positions the outer edge of the transmission lug on the transmission shaft, and the second positioning element 12 positions the connecting hole. The first positioning element 11 and the second positioning element 12 are respectively positioned corresponding to one of the positioning holes 101.

[0027] The locking plate 2 has two through holes, which cooperate with another rotating part on the transmission shaft. Considering that when the number of positioning holes 101 is set to multiple, multiple locking plates 2 and connecting components can be set at the same time, specifically one lock corresponds to two transmission shafts.

[0028] The connecting assembly is used to connect the locking plate 2 and the tooling body 1 to fix the transmission shaft.

[0029] Furthermore, the connecting assembly includes a connecting screw 4 and a locking nut. The connecting screw 4 is fixedly connected to the tooling body 1 and disposed between the two positioning holes 101. The locking plate 2 is sleeved on the connecting screw 4. The locking nut is threadedly connected to the connecting screw 4 to fix the two transmission shafts between the locking plate 2 and the tooling body 1.

[0030] Furthermore, a positioning boss 102 is formed on the tooling body 1, which is used to provide support for the connecting end face.

[0031] Furthermore, the first positioning member 11 includes a positioning pin, the side of which contacts and positions itself in contact with the outer contour of the transmission lug.

[0032] Furthermore, the second positioning member 12 includes a positioning pin, the outer side of which contacts and positions itself in contact with a connecting hole on a transmission lug.

[0033] Furthermore, a guide portion is formed on the top of the locating pin, which is used to guide the connecting hole on the transmission shaft.

[0034] Working principle:

[0035] When machining is required, the blank part is placed in the positioning hole 101 corresponding to the second positioning member 12, and the part with the completed lug connecting hole on one side is placed in the positioning hole 101 corresponding to the first positioning member 11. Then, the locking plate 2 is respectively fitted onto the two parts to be machined and locked by the connecting nut 3 and the connecting screw 4. The above arrangement allows for initial positioning using the second positioning member 12 when machining one side of the lug, and positioning using the connecting hole machined in the first machining operation when machining the lug on the other side, resulting in good positioning effect.

[0036] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A tooling fixture for a transmission shaft, characterized by: The utility model relates to a transmission shaft positioning device, including The utility model discloses a transmission shaft positioning device, including Locking plate (2), two through -holes are set up on locking plate (2), and the through -hole cooperations with another rotating part on transmission shaft, Connecting assembly is used for connecting locking plate (2) and tool body (1) to fix transmission shaft.

2. The tooling fixture for a transmission shaft according to claim 1, characterized by: The connecting assembly includes Connecting screw rod (4) is fixedly connected with tool body (1) and is arranged between two positioning holes (101), and locking plate (2) is sleeved on connecting screw rod (4), Locking nut is screwed with connecting screw rod (4) to fix two transmission shafts between locking plate (2) and tool body (1).

3. The tooling fixture for a transmission shaft according to claim 1, characterized by: The tool body (1) is formed with positioning boss (102), and the positioning boss (102) is used to provide support to the abutment end face.

4. The tool clamp for a transmission shaft according to Claim 1, characterized by: The first positioning part (11) includes a positioning pin, and the side surface of the positioning pin is in contact with the outer contour of the transmission lug for positioning.

5. The tooling fixture for a transmission shaft according to claim 1, characterized by: The second positioning part (12) includes a positioning pin, and the outer side surface of the positioning pin is in contact with the connecting hole on one transmission lug for positioning.

6. The tool clamp for a transmission shaft according to claim 5, characterized by: A guide portion is formed on the top of the positioning pin.

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