A processing fixture for preventing workpiece from being deformed during processing

Abstract

This utility model relates to the field of machining fixture technology, and in particular to a machining fixture for preventing workpiece deformation during machining. It includes a base, a support on top of the base, and a positioning unit, a supporting unit, and a clamping unit on the side of the support. The supporting unit includes a connecting shaft and a supporting block, which is rotatably connected to the connecting shaft. The supporting block has a through hole. The positioning unit and the clamping unit fix the workpiece. Rotating the supporting block positions it below the hole to be machined, making it contact one end of the hole. This allows the supporting block to support the lower part of the hole, preventing workpiece deformation during machining and ensuring product quality. This utility model is reasonably designed and easy to use. It prevents workpiece deformation during machining, thus preventing workpiece quality issues. Furthermore, it can clamp multiple workpieces at once and simultaneously machine two coaxial connecting holes, improving machining efficiency and ensuring workpiece quality.

Description

Technical Field

[0001] The utility model relates to the technical field of processing fixtures, in particular to a processing fixture for preventing workpieces from being deformed during processing. Background Art

[0002] The front suspension system of an automobile engine refers to a system formed by connecting the engine and the frame or the body through elastic suspension elements, and the vibration of the engine and the excitation force of the road surface are transmitted to the body through the elastic suspension elements. The performance design of the front suspension system of an automobile engine is directly related to the transmission of the engine vibration to the body, affecting the NVH characteristics of the whole vehicle. The front suspension system of an automobile is often connected to the engine through a bracket. Prior art CN209479396U discloses a front suspension left bracket, including a front suspension plate, and a parallel engine front mounting plate and an engine rear mounting plate are arranged on the same side of the front suspension plate. The two engine front mounting plates and the two engine rear mounting plates are provided with coaxial connection holes. Since the plate body walls of the engine front mounting plate and the engine rear mounting plate are relatively thin, when the drilling machine processes the connection hole, due to the pressure of the drilling machine, it is easy to cause the plate body to deform, affecting the assembly connection between the front suspension system and the engine. Utility Model Content

[0003] The purpose of the utility model is to provide a processing fixture for preventing workpiece deformation during processing, which is reasonably designed and easy to use. It can prevent the front mounting plate and the rear mounting plate of the engine from deforming during the processing of the connecting holes, thereby affecting the quality of the workpiece. Moreover, multiple workpieces can be clamped at one time, and two coaxial connecting holes can be processed at the same time, thereby improving the processing efficiency of the connecting holes and ensuring the quality of the workpiece.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a processing fixture for preventing workpiece processing deformation, comprising a base, a support is arranged above the base, a positioning unit, a supporting unit and a clamping unit for pressing the workpiece toward the support are arranged on the side of the support, the positioning unit comprises a plurality of positioning columns, the supporting unit comprises a connecting shaft and a supporting block, the connecting end of the connecting shaft is vertically arranged, the supporting block is rotatably connected to the connecting shaft, the supporting block is provided with a through hole with a vertical axis, and the aperture of the through hole is larger than the outer diameter of the drilling tool.

[0005] Furthermore, the clamping unit includes a clamping block, a screw rod and a locking nut. One end of the screw rod is connected to the support, and the other end passes through the clamping block and is threadedly connected to the locking nut.

[0006] Furthermore, the support unit also includes a universal wheel, which is arranged at the bottom of the support block and is slidably connected to the base, and the universal wheel is provided with a parking device.

[0007] Furthermore, the support block is provided with a slotted hole, which corresponds to the through hole, so that the through hole separates the two sides of the slotted hole.

[0008] Furthermore, the positioning unit, the supporting unit and the pressing unit are symmetrically arranged on both sides of the support.

[0009] The beneficial effect of the utility model is that the workpiece is fixed by the positioning unit and the clamping unit, and the support block is rotated so that the support block is located below the hole to be processed and contacts one end of the hole to be processed, so that the support block plays a supporting role below the hole to be processed, thereby preventing the workpiece from being deformed during processing and affecting product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is the front view of the utility model after clamping the workpiece.

[0012] Figure 3 It is a top view of the utility model after clamping the workpiece.

[0013] Description of reference numerals:

[0014] 1——base, 2——support, 3——positioning unit, 4——support unit, 41——connecting shaft, 42——support block, 421——through hole, 422——slot hole, 43——universal wheel, 5——pressing unit, 51——pressing block, 52——screw rod, 53——locking nut. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0016] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, a processing fixture for preventing workpiece deformation during processing in this embodiment includes a base 1, a support 2 is arranged above the base 1, and a positioning unit 3, a supporting unit 4 and a clamping unit 5 for pressing the workpiece toward the support 2 are arranged on the side of the support 2. The positioning unit 3 includes a plurality of positioning columns, preferably at least two positioning columns, and the positioning columns cooperate with the connecting holes of the front suspension plate of the workpiece. The supporting unit 4 includes a connecting shaft 41 and a supporting block 42. The connecting end of the connecting shaft 41 is vertically arranged, and the supporting block 42 is rotatably connected to the connecting shaft 41. The support block 42 is provided with a through hole 421 with a vertical axis, and the aperture of the through hole 421 is larger than the outer diameter of the drilling tool.

[0019] During operation, the front suspension plate of the workpiece is brought into contact with the side of the support 1, and the positioning column is inserted into the connecting hole of the front suspension plate to realize the positioning of the workpiece; the workpiece is clamped by the clamping unit 5 to realize the fixation of the workpiece; the support block 42 is rotated to make the support block 42 rotate to the bottom of the engine front mounting plate or the engine rear mounting plate and contact it, thereby supporting the engine front mounting plate or the engine rear mounting plate to prevent the engine front mounting plate or the engine rear mounting plate from being deformed during processing. At the same time, the through hole 421 of the support block 42 corresponds to the position of the hole to be processed, and the drilling tool can pass through the through hole to process another coaxial hole.

[0020] The clamping unit 5 includes a clamping block 51, a screw 52 and a locking nut 53. One end of the screw 52 is connected to the support 2, and the other end passes through the clamping block 51 and is threadedly connected to the locking nut 53. After the front suspension bracket is placed on the side of the support 2, the screw 52 passes through the weight-reducing hole of the front suspension plate and is connected to the clamping block 51, so that the side of the front mounting plate of the engine is clamped by the clamping block 51 to fix the workpiece.

[0021] The support unit 4 also includes a universal wheel 43, which is located at the bottom of the support block 42 and is rollingly connected to the base 1. The universal wheel 43 is provided with a parking device; the support block 42 is rotated around the connecting shaft 41 until the support block 42 contacts the workpiece and the through hole is nearly coaxial with the processed hole, and then the parking device of the universal wheel 42 is locked to fix the universal wheel to prevent the universal wheel from rolling during processing.

[0022] The support block 42 is provided with a slot 422, which divides the through hole 421 into two coaxial holes, and the two through holes 421 are respectively located on both sides of the slot 422. After the front suspension bracket is fixed above the support 2, the two sides of the slot 422 are respectively located below the engine front mounting plate or the two engine rear mounting plates, and contact the engine front mounting plate or the engine rear mounting plate, so that when the two coaxial connecting holes of the engine front mounting plate or the engine rear mounting plate are processed, the support block 42 can support them to prevent deformation.

[0023] The positioning unit 3, the supporting unit 4 and the clamping unit 5 are symmetrically arranged on both sides of the support 2. The two sides of the support 2 can clamp the front suspension bracket respectively, so that one fixture can clamp multiple workpieces, thereby improving processing efficiency.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A processing fixture for preventing workpiece deformation during processing, characterized in that: The invention comprises a base (1), a support (2) is arranged above the base (1), a positioning unit (3), a supporting unit (4) and a pressing unit (5) for pressing a workpiece toward the support (2) are arranged on the side of the support (2), the positioning unit (3) comprises a plurality of positioning columns, the supporting unit (4) comprises a connecting shaft (41) and a supporting block (42), the connecting end of the connecting shaft (41) is arranged vertically, the supporting block (42) is rotatably connected to the connecting shaft (41), and the supporting block (42) is provided with a through hole (421) with a vertical axis, and the aperture of the through hole (421) is larger than the outer diameter of the drilling tool.

2. A processing fixture for preventing workpiece deformation during processing according to claim 1, characterized in that: The clamping unit (5) comprises a clamping block (51), a screw rod (52) and a locking nut (53); one end of the screw rod (52) is connected to the support (2), and the other end passes through the clamping block (51) and is threadedly connected to the locking nut (53).

3. A processing fixture for preventing workpiece deformation during processing according to claim 1, characterized in that: The support unit (4) further comprises a universal wheel (43), wherein the universal wheel (43) is arranged at the bottom of the support block (42) and is slidably connected to the base (1).

4. A processing fixture for preventing workpiece deformation during processing according to claim 1, characterized in that: The support block is provided with a slot hole (422).

5. The processing fixture for preventing workpiece deformation during processing according to claim 1, characterized in that: The positioning unit (3), the supporting unit (4) and the pressing unit (5) are symmetrically arranged on both sides of the support (2).

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