A horizontal clamping fixture

Abstract

This utility model provides a horizontal clamping fixture, including a base, a positioning seat, a brake device, a limiting baffle, and a correction component. The positioning seat is fixed above the base. The base has a horizontally penetrating positioning groove. A guide hole is provided in the middle of the positioning groove. The brake device is installed above the positioning seat to clamp and fix the workpiece in the positioning groove. The limiting baffle is fixed on the positioning seat and located at the left end of the positioning groove. The correction component includes a spring and a correction block. The correction block is slidably connected in the guide hole. The upper end of the correction block has a correction support part for supporting the workpiece in the correction groove to achieve the correction function. The spring is installed between the correction block and the base to resist the upward movement of the correction block. This design can improve the clamping and positioning accuracy of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of machining and clamping tooling technology, and particularly to horizontal clamping tooling. Background Technology

[0002] There is a shaft-type workpiece with a flared inner hole and an inner shaft structure extending backward on the inner wall of the inner hole. When machining this workpiece, it is necessary to control the front and rear end hole and groove features, as well as the inclined hole features connecting the cylindrical surfaces. Traditional clamping methods require multiple machining operations, involving clamping datum conversion, which makes it difficult to guarantee machining accuracy. Furthermore, multiple clamping and machining operations reduce efficiency. This fixture is designed to use a high-precision horizontal machining center with a rotary table to machine the features in all three directions in one operation, avoiding errors caused by multiple clamping operations and improving efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a horizontal clamping fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A horizontal clamping fixture includes a base, a positioning seat, a brake device, a limiting baffle, and a correction assembly. The positioning seat is fixed above the base. The base has a transversely penetrating positioning groove. A guide hole is provided in the middle of the positioning groove. The brake device is installed above the positioning seat to clamp and fix the workpiece in the positioning groove. The limiting baffle is fixed on the positioning seat and located at the left end of the positioning groove. The correction assembly includes a spring and a correction block. The correction block is slidably connected in the guide hole. The upper end of the correction block has a correction support part for supporting the workpiece in the correction groove to achieve the correction function. The spring is installed between the correction block and the base to resist the upward movement of the correction block.

[0006] In a further description of the present invention, the positioning groove includes a flat bottom surface and inclined side surfaces connected to the front and rear sides of the flat bottom surface and inclined outward.

[0007] In a further description of the present invention, the brake device includes a front brake, a rear brake, and a locking assembly; the front brake and the rear brake are distributed on the front and rear sides of the positioning groove and their lower ends are rotatably connected to the positioning seat; the locking assembly is installed on the upper end of the front brake and is used to connect and lock with the rear brake.

[0008] Further description of this utility model: the upper end of the front brake is provided with a first U-shaped groove; the upper end of the rear brake is provided with a second U-shaped groove; the locking assembly includes a swing arm and a lock head; the front end of the swing arm is located in the first U-shaped groove and is rotatably connected to the front brake through a first mounting shaft; the lock head is rotatably connected to the rear end of the swing arm through a second mounting shaft; after the front brake and the rear brake are erected, the swing arm is swung backward, the rear part of the swing arm is supported by the second U-shaped groove, the rear end of the swing arm extends to the rear side of the second U-shaped groove, and the lock head is pressed against the rear brake by turning the lock head.

[0009] In a further description of this utility model, the lock head includes a handle portion and a locking portion; the handle portion is connected to the upper rear of the locking portion; the front side of the locking portion is a vertical surface, and the bottom is an arc-shaped surface; the second mounting shaft is mounted on the locking portion.

[0010] In a further description of this utility model, the correction support part is an inverted V-shaped protrusion structure; a groove is provided at the middle position of the upper end of the correction support part.

[0011] As further described in this utility model, the bottom of the base is provided with a weight-reducing groove.

[0012] The beneficial effects of this utility model are as follows:

[0013] This design places the workpiece into the positioning slot, and then uses a limiting baffle to abut the left end of the workpiece to achieve left and right positioning. During the placement of the workpiece, the correction groove on the outer wall of the workpiece faces downward. After the workpiece is placed down, the correction groove presses on the correction block, the spring is compressed, and the correction block abuts against the plane of the correction groove, thereby correcting the angle of the workpiece. Then, the workpiece is held and fixed in the positioning slot by the holding brake device, realizing the positioning and clamping of the workpiece in the front and back directions. This design can improve the positional accuracy of workpiece clamping. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a structural diagram of the positioning seat of this utility model;

[0016] Figure 3 This is a structural diagram of the calibration component of this utility model;

[0017] Figure 4 This is a structural diagram of the lock head and the second mounting shaft of this utility model;

[0018] Figure 5 This is a structural diagram of the base of this utility model;

[0019] Figure 6 This is a structural diagram of the workpiece clamped by this utility model;

[0020] Figure 7 This is a structural diagram of the workpiece clamping mechanism of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1-7 As shown, a horizontal clamping fixture includes a base 1, a positioning seat 2, a brake device 3, a limiting baffle 4, and a correction assembly 5. The positioning seat 2 is fixed above the base 1. The base 1 has a horizontally penetrating positioning groove 11. A guide hole 12 is provided in the middle of the positioning groove 11. The brake device 3 is installed above the positioning seat 2 to clamp and fix the workpiece 100 in the positioning groove 11. The limiting baffle 4 is fixed on the positioning seat 2 and located at the left end of the positioning groove 11. The correction assembly 5 includes a spring 51 and a correction block 52. The correction block 52 is slidably connected in the guide hole 12. The upper end of the correction block 52 has a correction support part 521 for supporting the workpiece 100 in the correction groove 10. The system achieves the correction function; the spring 51 is installed between the correction block 52 and the base 1 to abut against the correction block 52 and move it upward; when the workpiece 100 is placed in the positioning groove 11, the correction groove 101 on the outer wall of the workpiece 100 is placed downward. After the workpiece 100 is put down, the correction groove 101 presses on the correction block 52, the spring 51 is compressed, and the correction block 52 abuts against the plane of the correction groove 101, thereby correcting the angle of the workpiece 100. The limiting baffle 4 abuts against the left end of the workpiece 100 to achieve left and right positioning. Then, the workpiece 100 is held and fixed in the positioning groove 11 by the holding brake device 3, so as to achieve the positioning and clamping fixation of the workpiece 100 in the front and back directions. This design can improve the positional accuracy of the workpiece 100 clamping.

[0023] The positioning groove 11 includes a flat bottom surface 111 and inclined side surfaces 112 connected to the front and rear sides of the flat bottom surface 111 and inclined outward, which reduces the contact surface between the positioning groove 11 and the workpiece 100 and increases the clamping force on the workpiece 100 after clamping.

[0024] The brake device 3 includes a front brake 31, a rear brake 32, and a locking assembly 33. The front brake 31 and the rear brake 32 are distributed on the front and rear sides of the positioning groove 11 and their lower ends are rotatably connected to the positioning seat 2. The locking assembly 33 is installed on the upper end of the front brake 31 and is used to connect and lock with the rear brake 32. The front brake 31 and the rear brake 32 clamp the workpiece 100, and the locking assembly locks the front brake 31 and the rear brake 32, thereby clamping the workpiece 100 on the positioning groove 11.

[0025] The upper end of the front brake 31 is provided with a first U-shaped groove 311; the upper end of the rear brake 32 is provided with a second U-shaped groove 321; the locking assembly 33 includes a swing rod 331 and a lock head 332; the front end of the swing rod 331 is located in the first U-shaped groove 311 and is rotatably connected to the front brake 31 through a first mounting shaft 3301; the lock head 332 is rotatably connected to the rear end of the swing rod 331 through a second mounting shaft 3302; after the front brake 31 and the rear brake 32 are erected, the swing rod 331 is swung backward, the rear part of the swing rod 331 is supported by the second U-shaped groove 321, the rear end of the swing rod 331 extends to the rear side of the second U-shaped groove 321, and the lock head 332 is pressed against the rear brake 32 by turning the lock head 332.

[0026] The lock head 332 includes a handle 3321 and a locking part 3322; the handle 3321 is connected to the upper rear of the locking part 3322; the front side of the locking part 3322 is a vertical surface 33221, and the bottom is an arc-shaped surface 33222; the second mounting shaft 3302 is installed on the locking part 3322. The handle 3321 is designed for easy manual operation. When the vertical surface 33221 is in an upright state, the lock head 332 is not locked. When the locking part 3322 is pulled backward, the arc-shaped surface 33222 of the locking part 3322 is pressed against the rear brake 32, thereby locking the front brake 31 and the rear brake 32.

[0027] The correction support 521 has an inverted V-shaped protrusion structure; a groove 5211 is provided at the middle of the upper end of the correction support 521. The inverted V-shaped protrusion structure facilitates insertion into the guide groove of the workpiece 100. The groove 5211 provides a clearance effect, reduces the contact area between the correction support 521 and the workpiece 100, and increases the clamping force after clamping.

[0028] The base 1 has a weight-reducing groove 11 at its bottom, which reduces weight and saves costs.

[0029] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A horizontal clamping fixture, characterized by: The device includes a base, a positioning seat, a brake device, a limit baffle, and a correction assembly. The positioning seat is fixed above the base. The base has a horizontally penetrating positioning groove. A guide hole is provided in the middle of the positioning groove. The brake device is installed above the positioning seat to hold and fix the workpiece in the positioning groove. The limit baffle is fixed on the positioning seat and located at the left end of the positioning groove. The correction assembly includes a spring and a correction block. The correction block is slidably connected in the guide hole. The upper end of the correction block has a correction support part for supporting the workpiece in the correction groove to achieve the correction function. The spring is installed between the correction block and the base to resist the upward movement of the correction block.

2. A horizontal clamping fixture according to claim 1, characterized in that: The positioning groove includes a flat bottom surface and inclined side surfaces connected to the front and rear sides of the flat bottom surface and tilted outwards.

3. The horizontal clamping fixture of claim 1, wherein: The brake device includes a front brake, a rear brake, and a locking assembly; the front brake and the rear brake are distributed on the front and rear sides of the positioning groove and their lower ends are rotatably connected to the positioning seat; the locking assembly is installed on the upper end of the front brake and is used to connect and lock with the rear brake.

4. A horizontal clamping fixture according to claim 3, characterized in that: The upper end of the front brake is provided with a first U-shaped groove; the upper end of the rear brake is provided with a second U-shaped groove; the locking assembly includes a swing arm and a lock head; the front end of the swing arm is located in the first U-shaped groove and is rotatably connected to the front brake through a first mounting shaft; the lock head is rotatably connected to the rear end of the swing arm through a second mounting shaft; after the front brake and the rear brake are erected, the swing arm is swung backward, the rear part of the swing arm is supported by the second U-shaped groove, the rear end of the swing arm extends to the rear side of the second U-shaped groove, and the lock head is pressed against the rear brake by turning the lock head.

5. A horizontal clamping fixture according to claim 4, characterized in that: The lock head includes a handle and a locking part; the handle is connected to the upper rear of the locking part; the front of the locking part is a vertical surface and the bottom is an arc surface; the second mounting shaft is installed on the locking part.

6. The horizontal clamping fixture of claim 1, wherein: The correction support is an inverted V-shaped protrusion structure; a groove is provided at the middle of the upper end of the correction support.

7. The horizontal clamping fixture of claim 1, wherein: The base has a weight-reducing groove at its bottom.

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