Work fixture for milling workpiece

Abstract

The utility model discloses a work fixture for milling a workpiece. The work fixture comprises a base, the at least three clamping devices are arranged above the base and are used for clamping workpieces; the plurality of positioning devices are arranged above the base and are used for positioning a workpiece so as to facilitate milling; the first supporting frame is arranged above the base, at least four supporting blocks are arranged on the first supporting frame to support and clamp a workpiece, and two supporting blocks are perpendicular to the other two supporting blocks; the second supporting frame is arranged above the base and located in the center hole of the positioned workpiece, at least one supporting block is arranged at one end of the second supporting frame, and a positioning device is arranged at the other end of the supporting part, supporting the workpiece, of the supporting block; the third supporting frame is arranged above the base, and at least one supporting block is arranged at the top end of the third supporting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a tooling clamp used for workpiece milling. Background Art

[0002] The brake system is a core component to ensure the safe operation of the car, and its performance is directly related to the vehicle's braking efficiency and driving safety. Among them, the brake cylinder plays a vital role. It transmits driving force through the hydraulic system to push the brake pads close to the brake drum or brake disc to achieve the function of deceleration or even stopping. In this process, the accuracy and strength of the brake cylinder housing directly affect the reliability and durability of the entire brake system.

[0003] In the traditional brake cylinder housing processing process, the molded blank needs to be milled to meet the design specifications. However, this process faces many challenges, including how to firmly and accurately clamp the workpiece to prevent dimensional deviation caused by vibration during processing, and how to efficiently position to ensure processing accuracy and consistency. Existing clamping and positioning methods often have problems such as complex operation, inconvenient adjustment, and low processing efficiency, which limits the improvement of production efficiency and product quality.

[0004] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art to the present utility model. Summary of the invention

[0005] Based on this, the utility model provides a fixture for workpiece milling to solve one of the above technical problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is to include: a base; at least three clamping devices are arranged above the base for clamping the workpiece; a plurality of positioning devices are arranged above the base for positioning the workpiece to facilitate milling; a first support frame is arranged above the base, and at least four support blocks are arranged thereon to support the clamping of the workpiece, and two of the support blocks are arranged perpendicular to the other two support blocks; a second support frame is arranged above the base and located in the center hole for completing the positioning of the workpiece, and at least one support block is arranged at one end of the second support frame, and a positioning device is arranged at the other end of the supporting part of the support block supporting the workpiece; a third support frame is arranged above the base, and at least one support block is arranged at the top.

[0007] In some embodiments, the clamping device includes a first clamping device and a second clamping device, and both the first clamping device and the second clamping device are driven by a push rod.

[0008] In some embodiments, a support block is provided at the other end of the clamping portion of the clamping device for clamping the workpiece.

[0009] In some embodiments, the positioning device is driven by a push rod and is threadedly connected to the positioning device.

[0010] In some embodiments, at least two positioning columns are disposed above the base.

[0011] In some embodiments, a surface of the support block that cooperates with the workpiece is designed with grid convex points.

[0012] In some embodiments, a positioning device is provided at the other end of the workpiece contact surface with which the support block of the second support frame contacts.

[0013] In some embodiments, a support cylinder is disposed above the base to support the deflection that may be caused by the positioning device through a push rod.

[0014] The beneficial effect of the utility model is that by providing at least three clamping devices and multiple positioning devices, the tooling fixture can effectively fix and position the workpiece, reduce vibration and displacement during the processing, thereby improving the stability and processing accuracy of milling, and at the same time speeding up the processing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in a clamping state.

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model in a clamping state.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamp of the utility model.

[0019] Figure 4 It is a schematic diagram of the top view structure of the clamp of the utility model.

[0020] Explanation of the accompanying drawings: 1. Base; 2. Clamping device; 21. First clamping device; 22. Second clamping device; 3. Positioning device; 4. First support frame; 5. Second support frame; 6. Third support frame; 7. Support block; 8. Positioning column; 9. Support cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of the utility model.

[0022] In the embodiment of the present utility model, please refer to Figure 1-4 As shown, the utility model provides a fixture for workpiece milling, which mainly includes: a base 1; a clamping device 2, at least three of which are arranged above the base 1 for clamping the workpiece; a positioning device 3, several of which are arranged above the base 1 for positioning the workpiece to facilitate milling; a first support frame 4, which is arranged above the base 1, and at least four support blocks 7 are arranged thereon to support the clamping of the workpiece, and two of the support blocks 7 are arranged perpendicular to the other two support blocks 7; a second support frame 5, which is arranged above the base 1 and is located in the center hole for completing the positioning of the workpiece, and at least one support block 7 is arranged at one end of the second support frame, and the other end of the supporting part of the support block 7 supporting the workpiece is provided with a positioning device 3; a third support frame 6, which is arranged above the base 1, and at least one support block 7 is arranged at the top.

[0023] Specifically, when large arc milling is required on the workpiece, the clamping device 2 clamps the workpiece in the direction of the support block 7, and the positioning device 3 is started to start pushing the position of the workpiece, and the workpiece is accurately pushed to the processing position, and the support block 7 on the second support frame 5 forms a clamping and positioning function with the positioning device 3, so that the workpiece is further fixed, and the remaining two positioning devices 3 form a clamping and positioning function with the support block 7 on the first support frame 4, so that the workpiece is completely fixed.

[0024] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0025] Reference Figure 2 As shown, the clamping device 2 includes a first clamping device 21 and a second clamping device 22. Both the first clamping device 21 and the second clamping device 22 are driven by a push rod. This arrangement can make the clamping process more stable.

[0026] Specifically, in order to make the force of the clamping device 2 more concentrated during clamping, a support block 7 is provided at the other end of the clamping part of the clamping device 2 that clamps the workpiece.

[0027] Reference Figure 3 As shown, the positioning device 3 is driven by a push rod and is threadedly connected to the positioning device 3. This arrangement allows the push rod of the positioning device 3 to freely adjust the length (maximum stroke) of the push rod, making the positioning of the positioning device 3 more precise, and the threaded connection has a self-locking ability and will not be deflected by external forces.

[0028] Preferably, at least two positioning columns 8 are provided above the base 1 for preliminary positioning of the workpiece, thereby simplifying the difficulty of installation.

[0029] Preferably, the side of the support block 7 that cooperates with the workpiece adopts a grid convex point design. This design can effectively increase the friction between the support block 7 and the workpiece, and can effectively prevent the workpiece from slipping due to the push of the positioning device 3.

[0030] Reference Figure 2 As shown, a positioning device 3 is provided at the other end of the workpiece contact surface that the supporting block 7 of the second supporting frame 5 contacts. Such a configuration enables a part of the force-bearing point in the force-applying direction of the positioning device 3.

[0031] Preferably, a support cylinder 9 is provided above the base 1 to support the possible deflection of the positioning device 3 through a push rod.

[0032] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention, and the aforementioned embodiments are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fixture for workpiece milling, characterized in that: include: Base; Clamping devices, at least three of which are arranged above the base and are used to clamp the workpiece; Positioning devices, arranged above the base, for positioning the workpiece to facilitate milling; A first support frame, arranged above the base, on which at least four support blocks are arranged to support the clamping of the workpiece, and two of the support blocks are arranged perpendicular to the other two support blocks; A second support frame is arranged above the base and located in the center hole of the workpiece for positioning, and at least one support block is arranged at one end thereof, and a positioning device is arranged at the other end of the supporting part of the support block supporting the workpiece; The third support frame is arranged above the base, and at least one support block is arranged on the top.

2. A fixture for workpiece milling according to claim 1, characterized in that: The clamping device comprises a first clamping device and a second clamping device, and both the first clamping device and the second clamping device are driven by a push rod.

3. A fixture for workpiece milling according to claim 2, characterized in that: The other end of the clamping part of the clamping device for clamping the workpiece is provided with a supporting block.

4. A fixture for workpiece milling according to claim 1, characterized in that: The positioning device is driven by a push rod and is threadedly connected to the positioning device.

5. A fixture for workpiece milling according to claim 1, characterized in that: At least two positioning columns are arranged above the base.

6. A fixture for workpiece milling according to claim 1, characterized in that: The side of the support block that cooperates with the workpiece adopts a grid convex point design.

7. A fixture for workpiece milling according to claim 1, characterized in that: A positioning device is provided at the other end of the workpiece contact surface with which the support block of the second support frame contacts.

8. A fixture for workpiece milling according to claim 1, characterized in that: A support cylinder is arranged above the base to support the possible deflection caused by the positioning device through a push rod.

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