Flat square workpiece driving mechanism

Abstract

The utility model provides a flat square workpiece driving mechanism, and belongs to the technical field of machinery. The problem that an existing mechanism is not stable in work is solved. The flat square workpiece driving mechanism comprises a main shaft and a tip arranged on the main shaft, a conical head is arranged at the front end of the tip, a supporting plate is fixed to the front side of the main shaft, and a through hole allowing the conical head to penetrate through is formed in the supporting plate; pressing blocks are arranged on the left side and the right side of the conical head, located on the front side of the supporting plate, connected with the supporting plate in a left-right sliding mode and capable of being locked at the sliding position; the side face, closest to the central axis of the conical head, of the pressing block is a strip-shaped driving plane, the driving planes are vertically arranged, the two driving planes are oppositely arranged, and a clamping opening used for clamping a flat square workpiece is formed between the two driving planes. The flat square workpiece driving mechanism is stable in operation.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a workpiece driving mechanism, particularly a flat rectangular workpiece driving mechanism. Background Technology

[0002] Flat rectangular workpieces typically refer to mechanical parts with a rectangular or flat rectangular cross-section, commonly found in mechanical transmission, connection, or support structures.

[0003] When machining flat rectangular workpieces, specific tooling is required for positioning. Existing tooling structures, such as the cylindrical workpiece end milling and clamping device disclosed in the Chinese Patent Database (application number: 201410658904.3), include a base plate for fixed support. The key feature is that it further includes a V-groove pad and a V-groove pressure head that cooperate to clamp the workpiece, a drive screw for driving the V-groove pressure head to clamp the workpiece, and a positioning block for positioning the workpiece from the lower end. Two parallel vertical plates are fixedly arranged on the upper side of the base plate. The V-groove pad is fixedly arranged on one side of the first vertical plate. The drive screw is arranged on the second vertical plate through a threaded hole. One end of the drive screw is hinged to the V-groove pressure head, and the other end of the drive screw is fixedly mounted with a circular handle. The upper side of the base plate is located between the V-groove pad and the V-groove pressure head. The positioning block and the support are fixedly arranged between the groove pressure head. A pressure shaft for quickly pressing the workpiece is slidably installed in the middle of the support through a light hole. An elastic element for driving the pressure shaft to press the workpiece is arranged between the end of the pressure shaft and the support.

[0004] The aforementioned clamping device uses an elastic element to press the flat section of the workpiece onto the positioning block, achieving circumferential positioning of the workpiece. However, in actual use, workpiece processing generates vibrations, causing the elastic element to undergo elastic deformation and tend to move away from the workpiece. This tendency is particularly pronounced when the clamping device is applied to rotating components, easily causing rotational misalignment of the workpiece during processing. This results in inconsistent rotation between the workpiece and the rotating component, affecting processing quality and accuracy. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a stable flat workpiece driving mechanism.

[0006] The objective of this utility model can be achieved through the following technical solution: A flat rectangular workpiece driving mechanism includes a main shaft and a tip disposed on the main shaft. The tip has a conical head at its front end. The mechanism is characterized in that a support plate is fixed to the front side of the main shaft, and the support plate has a through hole for the conical head to pass through. Pressure blocks are provided on both the left and right sides of the conical head. The pressure blocks are located on the front side of the support plate, and the pressure blocks are slidably connected to the support plate and can be locked in the sliding position. The side of the pressure block closest to the central axis of the conical head is a strip-shaped driving plane. The driving plane is vertically arranged, and the two driving planes are arranged opposite each other, forming a clamping opening between them for clamping the flat rectangular workpiece.

[0007] In actual products, the rear end of the flat square workpiece is the flat square section, and the rear end face of the flat square section has a tapered hole that matches the tapered head. In use, the flat square workpiece is fitted into the tapered head through the tapered hole to define the installation position of the flat square workpiece. Then, two pressure blocks are brought close together to clamp the flat square section, so that the flat square workpiece rotates synchronously and stably with the spindle.

[0008] The cone and the two pressure blocks form a clamping space, and the cone and the pressure blocks make hard contact with the flat workpiece to effectively ensure the stability and accuracy of the flat workpiece being clamped and positioned, thereby improving the processing stability and accuracy of the flat workpiece.

[0009] In the aforementioned flat workpiece driving mechanism, the clamping block includes a clamping block and an L-shaped base. The base consists of a vertically arranged sliding block and a fixed block, with the sliding block positioned between the fixed block and the support plate. The clamping block is fixed to the fixed block, and the two clamping blocks are positioned between the two fixed blocks. The driving plane is positioned on the clamping block, and the sliding block is slidably connected to the support plate and can be locked in the sliding position. This design facilitates design and assembly.

[0010] In the aforementioned flat workpiece driving mechanism, the sliding block forms a sliding fit with the support plate through the sliding groove guide block structure, which has the advantages of simple structure and stable operation.

[0011] In the aforementioned flat workpiece driving mechanism, the sliding guide block structure includes a T-shaped groove extending through the front side of the support plate. Two matching T-shaped blocks slide within the T-shaped groove, pressing against the front side of the support plate. Each sliding block is fixed to one of the two T-shaped blocks by screws, with the screw heads facing forward. Tightening or loosening the screws controls the locking or sliding of the pressure block, effectively reducing operating steps and simplifying use.

[0012] In the aforementioned flat workpiece driving mechanism, the support plate is also provided with two limiting structures that can be released to restrict the forward movement of the two screws, so as to prevent the screws from loosening and ensure that the pressure block always clamps the flat workpiece.

[0013] In the aforementioned flat workpiece driving mechanism, the sliding block is provided with a connecting hole for the screw rod to pass through; the limiting structure includes two support blocks fixed to the front side of the support plate, and two pressure blocks are located between the two support blocks; the support blocks have threaded holes extending through them on the left and right, and the sliding block is provided with corresponding clearance holes, which are connected to the corresponding connecting holes. Each of the two threaded holes is screwed with a bolt, and the bolt rod is pressed against the corresponding screw rod to create greater friction between them, thereby preventing the screw from loosening.

[0014] As another option, in the aforementioned flat workpiece driving mechanism, the limiting structure includes two L-shaped plates, one end of which is detachably fixed to the support plate, and the other ends of the two plates respectively press against the heads of two screws.

[0015] Compared with existing technologies, this flat workpiece driving mechanism has the following advantages:

[0016] 1. A clamping space is formed between the cone and the two pressure blocks, and the contact between the cone and the pressure blocks and the flat workpiece is a hard contact, so as to effectively ensure the stability and accuracy of the flat workpiece being clamped and positioned, thereby improving the processing stability and accuracy of the flat workpiece.

[0017] 2. The locking or sliding of the pressure block can be controlled by tightening or loosening the screws, which can effectively reduce the operation steps and make it convenient to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the driving mechanism for this flat rectangular workpiece.

[0019] Figure 2 This is a cross-sectional schematic diagram of the drive mechanism for this flat rectangular workpiece.

[0020] In the diagram, 1. Spindle; 2. Center; 2a. Cone; 3. Support plate; 3a. T-slot; 4. Connecting column; 5. Pressure block; 5a. Drive plane; 5b. Sliding block; 5c. Fixing block; 5d. Clamping block; 6. Flat rectangular workpiece; 6a. Flat rectangular part; 7. T-block; 8. Screw; 9. Support block; 10. Bolt 1. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] Example 1: As Figure 1 As shown, the flat workpiece driving mechanism includes a main shaft 1 and a tip 2 disposed on the main shaft 1. The tip 2 and the main shaft 1 are coaxially disposed, and the front end of the tip 2 is a cone 2a.

[0023] in,

[0024] A support plate 3 is fixed to the front side of the spindle 1, and the support plate 3 has a through hole for the cone head 2a to pass through. Preferably, the through hole and the center point 2 are coaxially arranged. The support plate 3 is elongated and extends horizontally, and the spindle 1 is fixed to the support plate 3 on all four sides by horizontally arranged connecting columns 4.

[0025] like Figure 1 As shown, pressure blocks 5 are provided on both the left and right sides of the cone head 2a. The pressure blocks 5 are located in front of the support plate 3, and the two pressure blocks 5 are symmetrically arranged along the central axis of the tip 2. The pressure blocks 5 are slidably connected to the support plate 3 and can be locked in the sliding position. The side of the pressure block 5 closest to the central axis of the cone head 2a is a strip-shaped driving plane 5a. The driving plane 5a is vertically arranged, and the two driving planes 5a are arranged opposite each other, forming a clamping opening between them for clamping the flat rectangular workpiece 6.

[0026] In the actual product, the rear end of the flat rectangular workpiece 6 is a flat rectangular section 6a, and the rear end face of the flat rectangular section 6a has a tapered hole that matches the tapered head 2a. In use, the flat rectangular workpiece 6 is fitted into the tapered head 2a through the tapered hole to limit the installation position of the flat rectangular workpiece 6. Then, the two pressure blocks 5 move closer to each other to clamp the flat rectangular section 6a, so that the flat rectangular workpiece 6 rotates synchronously and stably with the spindle 1.

[0027] The cone 2a and the two pressure blocks 5 form a clamping space, and the cone 2a and the pressure blocks 5 make hard contact with the flat workpiece 6 to effectively ensure the stability and accuracy of the flat workpiece 6 being clamped and positioned, thereby improving the processing stability and accuracy of the flat workpiece 6.

[0028] In this embodiment,

[0029] The pressure block 5 includes a clamping block 5d and an L-shaped base. The base is a one-piece structure, consisting of a vertically arranged sliding block 5b and a fixed block 5c, with the sliding block 5b positioned between the fixed block 5c and the support plate 3. Preferably, the two fixed blocks 5c are positioned between the two sliding blocks 5b. The clamping block 5d is fixed to the fixed block 5c, and the two clamping blocks 5d are positioned between the two fixed blocks 5c. The aforementioned driving plane 5a is disposed on the clamping block 5d, and the sliding block 5b is slidably connected to the support plate 3 and can be locked in the sliding position. This design facilitates design and assembly.

[0030] The sliding block 5b and the support plate 3 are in the following sliding fit: the sliding block 5b forms a sliding fit with the support plate 3 through the sliding groove guide block structure, which has the advantages of simple structure and stable operation.

[0031] like Figure 1 and Figure 2As shown, the locking method of the sliding block 5b is as follows: The sliding guide block structure includes a T-shaped groove 3a that runs through the front side of the support plate 3. Two matching T-shaped blocks 7 are slidably disposed within the T-shaped groove 3a. The sliding block 5b presses against the front side of the support plate 3. Both sliding blocks 5b are fixed to the two T-shaped blocks 7 by screws 8. The axis of the screws 8 extends back and forth, and the heads of the screws 8 face forward. By tightening or loosening the screws 8, the locking or sliding of the pressure block 5 can be controlled, which can effectively reduce the operation steps and facilitate use.

[0032] To further explain, the support plate 3 is also provided with two limiting structures that can be released to restrict the forward movement of the two screws 8, in order to prevent the screws 8 from loosening and ensure that the pressure block 5 always clamps the flat rectangular workpiece 6. Specifically, the sliding block 5b is provided with a connecting hole for the screw 8 shank to pass through; the limiting structure includes two support blocks 9 fixed to the front side of the support plate 3, and the two pressure blocks 5 are located between the two support blocks 9; the support blocks 9 have threaded holes extending through to the left and right, and the sliding block 5b is provided with corresponding clearance holes, which are connected to the corresponding connecting holes. Bolts 10 are screwed into both threaded holes, and the shanks of the bolts 10 are pressed against the corresponding screw 8 shanks to create greater friction between them, thereby preventing the screws 8 from loosening.

[0033] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the limiting structure includes two L-shaped pieces. One end of the pieces is detachably fixed to the support plate 3, and the other ends of the two pieces press against the heads of the two screws 8 respectively.

[0034] Example 3: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the locking method of the sliding block 5b is as follows: Two positioning blocks are fixed on the front side of the support plate 3, and the two pressure blocks 5 are located between the two positioning blocks. The positioning blocks have threaded holes 2 through them on the left and right sides. The sliding block 5b has corresponding threaded holes 3, and the same bolt 2 is screwed into the threaded holes 2 and 3 at the corresponding positions.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A flat square workpiece driving mechanism comprising a main shaft (1) and a tailstock (2) arranged on the main shaft (1), the tailstock (2) having a taper head (2a) at the front end, characterized in that, The main shaft (1) is fixed with a support plate (3) on the front side, and the support plate (3) is provided with a through hole for the cone head (2a) to pass through; the left and right sides of the cone head (2a) are provided with a pressing block (5), the pressing block (5) is located on the front side of the support plate (3), and the pressing block (5) is slidably connected with the support plate (3) and can be locked in the sliding position; the side of the pressing block (5) closest to the central axis of the cone head (2a) is a driving plane (5a) in strip shape, the driving plane (5a) is vertically arranged, and the two driving planes (5a) are oppositely arranged and form a clamping opening between them for clamping a flat square workpiece (6).

2. The flat square workpiece drive mechanism according to claim 1, characterized by, The pressing block (5) comprises a clamping block (5d) and an L-shaped base body, the base body is composed of a sliding block (5b) and a fixed block (5c) arranged vertically, and the sliding block (5b) is located between the fixed block (5c) and the support plate (3); the clamping block (5d) is fixed on the fixed block (5c), and the two clamping blocks (5d) are located between the two fixed blocks (5c); the driving plane (5a) is arranged on the clamping block (5d), and the sliding block (5b) is slidably connected with the support plate (3) and can be locked in the sliding position.

3. The flat square workpiece drive mechanism of claim 2, wherein, The sliding block (5b) is slidably connected with the support plate (3) through a sliding groove guide block structure.

4. The flat square workpiece drive mechanism of claim 3, wherein, The sliding groove guide block structure comprises a T-shaped groove (3a) arranged on the front side of the support plate (3) in a left-right penetrating manner, two T-shaped blocks (7) matched with the T-shaped groove (3a) are slidably arranged in the T-shaped groove (3a), the sliding block (5b) is abutted against the front side of the support plate (3), and the two sliding blocks (5b) are respectively fixed to the two T-shaped blocks (7) through screws (8), and the heads of the screws (8) are arranged forward.

5. The flat square workpiece drive mechanism of claim 4, wherein, The support plate (3) is further provided with two limiting structures for releasably limiting the forward movement of the two screws (8).

6. The flat square workpiece drive mechanism of claim 5, wherein, The sliding block (5b) is provided with a connecting hole for the rod portion of the screw (8) to pass through; the limiting structure comprises two support blocks (9) fixed on the front side of the support plate (3), and the two pressing blocks (5) are located between the two support blocks (9); the support block (9) is provided with a threaded hole one in a left-right penetrating manner, and the sliding block (5b) is correspondingly provided with an avoiding hole, and the avoiding hole is communicated with the corresponding connecting hole, and a bolt one (10) is screwed in each of the two threaded holes one, and the rod portion of the bolt one (10) is abutted against the rod portion of the corresponding screw (8).

7. The flat square workpiece drive mechanism of claim 5, wherein, The limiting structure comprises two L-shaped plates, one end of the plate is detachably fixed to the support plate (3), and the other end of the two plates is abutted against the head of the screw (8).

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