Tooling fixtures for machining connecting rod mechanical parts

Abstract

This utility model relates to a tooling fixture for machining linkage mechanical parts, comprising: a first clamping mechanism including a support arm, a clamping rod, and a first rotating handle; the support arm has a first through hole penetrating through the support arm, and the inner wall of the first through hole has an internal thread; the clamping rod has an external thread, the clamping rod and the first through hole on the support arm are adapted to each other and threaded together, and the end of the clamping rod extends out of the first through hole, and the clamping rod can extend a preset distance relative to the first through hole; the first rotating handle and the clamping rod are fixedly installed together; and a second clamping mechanism including a clamping disk that can be raised and lowered, the clamping disk including a clamping disk body, the clamping disk body being raised and lowered in the vertical direction; the clamping rod of the first clamping mechanism and the clamping disk body of the second clamping mechanism together form a clamping space, and the size of the clamping space changes due to the movement of the clamping rod and the clamping disk body.

Description

Technical Field

[0001] This utility model relates to tooling fixtures, specifically to tooling fixtures for machining connecting rod mechanical parts. Background Technology

[0002] Connecting rods are used in many industries, such as the automotive industry, where they are crucial components for transmitting torque. Most connecting rods are elongated, and how to stably fix them on tooling fixtures for machining is a challenge in the industry. For example, Chinese invention patent application CN202411448099.1 discloses a fixing fixture and method for machining high-strength automotive connecting rods on a machine tool, including a fixture base; a drive motor is installed inside the lifting platform, and a clamping assembly is provided on the drive motor. The clamping assembly includes a turntable connected to the output end of the drive motor, a semi-worm gear installed on the outer side of the drive motor output end, a worm gear meshing with the side end of the semi-worm gear, an inclined groove on the turntable, a movable plate connected to the turntable via a slider, a limit seat on the outer side of the turntable, and a clamping block installed on the upper end of the movable plate. This high-strength automotive connecting rod machining machine tool fixing fixture uses a clamping block of the clamping assembly to engage with the inside of the connecting rod's through hole, thus securing the clamping block on the moving plate inside the connecting rod's through hole and reducing the problem of uneven clamping pressure distribution caused by manual operation. While the fixture disclosed in this patent can effectively fix the connecting rod, it cannot accurately position or limit the connecting rod, resulting in poor stability when clamping it. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tooling fixture for machining connecting rod mechanical parts.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a tooling fixture for machining connecting rod mechanical parts, comprising:

[0005] A first clamping mechanism includes a support arm, a clamping rod, and a first rotating handle. The support arm has a first through hole that extends through the support arm and has an internal thread on its inner wall. The clamping rod has an external thread and is threadedly connected to the first through hole on the support arm. The end of the clamping rod extends out of the first through hole and can extend a predetermined distance relative to the first through hole. The first rotating handle and the clamping rod are fixedly installed together.

[0006] And a second clamping mechanism, the second clamping mechanism including a clamping plate that can be raised and lowered, the clamping plate including a clamping plate body, the clamping plate body being raised and lowered in the vertical direction;

[0007] The clamping rod of the first clamping mechanism and the clamping disk body of the second clamping mechanism together form a clamping space, and the size of the clamping space changes as the clamping rod and the clamping disk body move.

[0008] In some embodiments of this application, the clamping disk further includes a predetermined number of first positioning teeth, which are fixedly connected to the clamping disk body and protrude from the clamping disk body toward the clamping space, and the first positioning teeth constitute a part of the clamping space.

[0009] In some embodiments of this application, the second clamping mechanism further includes a rotating rod, a second rotating handle, a gear, and a lifting rod. The lifting rod is fixedly connected to the clamping disc body, and the lifting rod has teeth. The gear is fixedly mounted on the rotating rod, and the second rotating handle is fixedly connected to the rotating rod. The gear meshes with the teeth on the lifting rod. By rotating the rotating rod through the second rotating handle, the rotating rod drives the gear to rotate, and the gear drives the lifting rod to rise and fall, thereby causing the clamping disc body to rise and fall.

[0010] In some embodiments of this application, the second clamping mechanism further includes a first guide rod, a second guide rod, a first guide cylinder, a second guide cylinder, and a third guide cylinder. The first guide rod and the second guide rod are both fixedly connected to the clamping disc body. The first guide rod is vertically mounted in the first guide cylinder, the lifting rod is vertically mounted in the second guide cylinder, and the second guide rod is vertically mounted in the third guide cylinder.

[0011] In some embodiments of this application, the second clamping mechanism further includes a sleeve, in which at least a portion of the gear and the rotating rod are disposed, and the sleeve is fixedly connected to the first guide cylinder, the second guide cylinder, and the third guide cylinder.

[0012] In some embodiments of this application, a connecting rod support and a positioning post are also included. The positioning post is fixedly installed on the connecting rod support, and at least a portion of the connecting rod support is placed in the clamping space. The positioning post is used to connect with the connecting rod to position the connecting rod.

[0013] In some embodiments of this application, a support base is also included, the support base including a support base body, the support arm being fixedly connected to the support base body, and the support arm protruding upward from the support base body by a predetermined height.

[0014] In some embodiments of this application, a support base is also included, the support base including a support base body, wherein the first guide cylinder, the second guide cylinder, and the third guide cylinder are all fixedly connected to the support base body.

[0015] In some embodiments of this application, a support base is also included, the support base including a support base body, the connecting rod support seat and the support base body are fixedly installed together, and the connecting rod support seat, the clamping rod and the clamping disk together form the clamping space.

[0016] The beneficial effects of this application are as follows: Firstly, the tooling fixture for machining connecting rod mechanical parts provided by this application has the advantage of simple structure, which is suitable for clamping and fixing connecting rods. Secondly, given the dual clamping of the first clamping mechanism and the second clamping mechanism, the clamping is more accurate. Furthermore, the clamping disc body of the second clamping mechanism is provided with a first positioning tooth and the connecting rod support is provided with a positioning post, which makes the positioning of the connecting rod more accurate when it is placed in the tooling fixture. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tooling fixture for machining connecting rod mechanical parts provided by this utility model.

[0018] Figure 2 Another structural schematic diagram of the tooling fixture for machining connecting rod mechanical parts provided by this utility model.

[0019] Figure 3 Another structural schematic diagram of the tooling fixture for machining connecting rod mechanical parts provided by this utility model.

[0020] Figure 4 Another structural schematic diagram of the tooling fixture for machining connecting rod mechanical parts provided by this utility model. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the objects being described and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages).

[0024] Please refer to Figure 1-4 This application provides a tooling fixture for machining connecting rod mechanical parts (hereinafter referred to as "the tooling fixture"), which positions and fixes the connecting rod on the tooling fixture, and then the connecting rod is machined by a mechanical parts machining equipment. Therefore, the stability of the positioning and fixing of the connecting rod will directly affect the accuracy of the connecting rod machining.

[0025] The tooling fixture includes:

[0026] The first clamping mechanism includes a support arm 104, a clamping rod 5, and a first rotating handle 6. The support arm 104 has a first through hole 1040 that passes through the support arm 104, and the inner wall of the first through hole 1040 has an internal thread. The clamping rod 5 has an external thread. The clamping rod 5 and the first through hole 1040 on the support arm 104 are adapted to each other and threaded together. The end of the clamping rod 5 extends out of the first through hole 1040, and the clamping rod 5 can extend a predetermined distance relative to the first through hole 1040. The first rotating handle 6 and the clamping rod 5 are fixedly installed together.

[0027] And a second clamping mechanism, the second clamping mechanism including a clamping disk 3 that can be raised and lowered, the clamping disk 3 including a clamping disk body 31, the clamping disk body 31 being raised and lowered in the vertical direction;

[0028] The clamping rod 5 of the first clamping mechanism and the clamping disk body 31 of the second clamping mechanism together form a clamping space 13, and the size of the clamping space 13 changes with the movement of the clamping rod 5 and the clamping disk body 31. The working principle is that the size of the clamping space 13 formed by the clamping rod 5 and the clamping disk body 31 changes through the extension and retraction of the clamping rod 5 relative to the support arm 104 and the raising and lowering of the clamping disk body 31. For example, by raising the clamping disk body 31, placing the connecting rod 4 into the clamping space 13, and then lowering the clamping disk body 31 to a suitable position, the clamping rod 5 and the clamping disk body 31 together clamp the connecting rod, thus fixing the connecting rod 4 in the clamping space 13.

[0029] Please refer to some embodiments of this application. Figure 1-4 The clamping disc 3 further includes a predetermined number of first positioning teeth 32. The first positioning teeth 32 are fixedly connected to the clamping disc body 31, and protrude from the clamping disc body 31 toward the clamping space 13, forming a part of the clamping space 13. When the clamping disc body 31 descends to a predetermined position, the first positioning teeth 32 press against the connecting rod 4, and the multiple first positioning teeth 32 form a small positioning space, in which a part of the connecting rod 4 is stuck, making the connecting rod clamped more stably.

[0030] Please refer to some embodiments of this application. Figure 1-4 The second clamping mechanism further includes a rotating rod 7, a second rotating handle 8, a gear 14, and a lifting rod 10. The lifting rod 10 is fixedly connected to the clamping disc body 31, and the lifting rod 10 is provided with teeth 15. The gear 14 is fixedly mounted on the rotating rod 7, and the second rotating handle 8 is fixedly connected to the rotating rod 7. The gear 14 meshes with the teeth 15 on the lifting rod 10. By rotating the rotating rod 7 through the second rotating handle 8, the rotating rod 7 drives the gear 14 to rotate, and the gear 14 drives the lifting rod 10 to rise and fall, thereby causing the clamping disc body 31 to rise and fall. It should be noted that the meshing of the gear 14 and the teeth 15 on the lifting rod 10 not only causes the lifting rod 10 to rise and fall, but also, through the force transmission on the gear 14, the force on the gear 14 can be converted into the clamping force of the clamping disc body 31. Furthermore, due to the setting of the gear 14, the clamping force of the clamping disc body 31 is very large, resulting in a very good clamping effect.

[0031] Please refer to some embodiments of this application. Figure 1-4The second clamping mechanism further includes a first guide rod 9, a second guide rod 11, a first guide cylinder 101, a second guide cylinder 102, and a third guide cylinder 103. The first guide rod 9 and the second guide rod 11 are both fixedly connected to the clamping disc body 31. The first guide rod 9 is vertically mounted in the first guide cylinder 101, the lifting rod 10 is vertically mounted in the second guide cylinder 101, and the second guide rod 11 is vertically mounted in the third guide cylinder 103. The first guide cylinder 101, the second guide cylinder 102, and the third guide cylinder 103 each have an opening. The first guide rod 9, the second guide rod 11, and the lifting rod 10 enter their respective guide cylinders through these openings and can move up and down within the guide cylinders. The guide cylinders limit the movement of the guide rods, making the clamping disc body 31 more stable when clamping the connecting rod 4.

[0032] Please refer to some embodiments of this application. Figure 1-4 The second clamping mechanism further includes a sleeve 105, in which at least a portion of the gear 14 and the rotating rod 7 are placed, and the sleeve 105 and the first guide cylinder 101, the second guide cylinder 102 and the third guide cylinder 103 are all fixedly connected together.

[0033] Please refer to some embodiments of this application. Figure 1-4 The tooling fixture also includes a connecting rod support 2 and a positioning post 12. The positioning post 12 is fixedly installed on the connecting rod support 2, and at least a portion of the connecting rod support 2 is placed in the clamping space 13. The positioning post 12 is used to connect with the connecting rod 4 to position the connecting rod 4. Specifically, a bushing is provided on the connecting rod 4, and the positioning post 12 extends into the bushing on the connecting rod 4 to position the connecting rod 4 on the connecting rod support 2.

[0034] Please refer to some embodiments of this application. Figure 1-4 The tooling fixture also includes a support base 1, which includes a support base body 100. The support arm 104 is fixedly connected to the support base body 100, and the support arm 104 protrudes upward from the support base body 100 by a predetermined height.

[0035] Please refer to some embodiments of this application. Figure 1-4 The tooling fixture also includes a support base 1, which includes a support base body 100. The first guide cylinder 101, the second guide cylinder 102, and the third guide cylinder 103 are all fixedly connected to the support base body 100.

[0036] Please refer to some embodiments of this application. Figure 1-4The tooling fixture also includes a support base 1, which includes a support base body 100. The connecting rod support 2 and the support base body 100 are fixedly installed together, and the connecting rod support 2, the clamping rod 5, and the clamping plate 3 together form the clamping space 13.

[0037] The tooling fixture for machining connecting rod mechanical parts provided in this application has the advantages of simple structure and is suitable for clamping and fixing connecting rods. Secondly, the dual clamping of the first clamping mechanism and the second clamping mechanism makes the clamping more precise. Furthermore, the clamping disc body of the second clamping mechanism is provided with a first positioning tooth and the connecting rod support is provided with a positioning post, which makes the positioning of the connecting rod more precise when it is placed in the tooling fixture.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling fixture for machining connecting rod mechanical parts, characterized in that, include: A first clamping mechanism includes a support arm, a clamping rod, and a first rotating handle. The support arm has a first through hole that extends through the support arm and has an internal thread on its inner wall. The clamping rod has an external thread and is threadedly connected to the first through hole on the support arm. The end of the clamping rod extends out of the first through hole and can extend a predetermined distance relative to the first through hole. The first rotating handle and the clamping rod are fixedly installed together. And a second clamping mechanism, the second clamping mechanism including a clamping plate that can be raised and lowered, the clamping plate including a clamping plate body, the clamping plate body being raised and lowered in the vertical direction; The clamping rod of the first clamping mechanism and the clamping disk body of the second clamping mechanism together form a clamping space, and the size of the clamping space changes as the clamping rod and the clamping disk body move.

2. The tooling fixture according to claim 1, characterized in that, The clamping disk further includes a predetermined number of first positioning teeth, which are fixedly connected to the clamping disk body and protrude from the clamping disk body toward the clamping space, and the first positioning teeth constitute a part of the clamping space.

3. The tooling fixture according to claim 1, characterized in that, The second clamping mechanism further includes a rotating rod, a second rotating handle, a gear, and a lifting rod. The lifting rod is fixedly connected to the clamping disc body, and the lifting rod has teeth. The gear is fixedly mounted on the rotating rod, and the second rotating handle is fixedly connected to the rotating rod. The gear meshes with the teeth on the lifting rod. By rotating the rotating rod through the second rotating handle, the rotating rod drives the gear to rotate, and the gear drives the lifting rod to rise and fall, thereby causing the clamping disc body to rise and fall.

4. The tooling fixture according to claim 3, characterized in that, The second clamping mechanism further includes a first guide rod, a second guide rod, a first guide cylinder, a second guide cylinder, and a third guide cylinder. The first guide rod and the second guide rod are both fixedly connected to the clamping disc body. The first guide rod is vertically mounted in the first guide cylinder, the lifting rod is vertically mounted in the second guide cylinder, and the second guide rod is vertically mounted in the third guide cylinder.

5. The tooling fixture according to claim 4, characterized in that, The second clamping mechanism further includes a sleeve, in which at least a portion of the gear and the rotating rod are placed, and the sleeve is fixedly connected to the first guide cylinder, the second guide cylinder, and the third guide cylinder.

6. The tooling fixture according to claim 1, characterized in that, It also includes a connecting rod support and a positioning post. The positioning post is fixedly installed on the connecting rod support, and at least a portion of the connecting rod support is placed in the clamping space. The positioning post is used to connect with the connecting rod to position the connecting rod.

7. The tooling fixture according to claim 1, characterized in that, It also includes a support base, which includes a support base body, and the support arm is fixedly connected to the support base body, with the support arm protruding upward from the support base body by a predetermined height.

8. The tooling fixture according to claim 4, characterized in that, It also includes a support base, which includes a support base body, and the first guide cylinder, the second guide cylinder, and the third guide cylinder are all fixedly connected to the support base body.

9. The tooling fixture according to claim 6, characterized in that, It also includes a support base, which includes a support base body. The connecting rod support and the support base body are fixedly installed together, and the connecting rod support, the clamping rod, and the clamping plate together form the clamping space.

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