A fixture for side machining clamping

Abstract

The application discloses a clamp for clamping for lateral machining, and belongs to the technical field of part clamps, which comprises a base, a rotating shaft and a clamp seat. One end of the clamp seat is rotatably arranged on the base, and the other end of the clamp seat is provided with a sliding buckle. The sliding buckle slides on the clamp seat and cooperates with the clamp seat to fix a part to be machined. The rotating shaft penetrates through the base and is fixedly connected with the clamp seat. The clamp can reduce clamping time when special-shaped parts need to be laterally machined, and can reduce corresponding machining cost. Meanwhile, the clamp changes from adsorption or pasting of the part to direct clamping during lateral machining of the part, so that the loosening of the part during machining is reduced to the minimum, and the qualified rate of the part is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of parts clamping fixtures, specifically relating to a clamping fixture for lateral machining. Background Technology

[0002] In the CNC milling and grinding processes of precision mold parts, the problem of datum positioning has long constrained machining efficiency and dimensional accuracy, especially in the forming process of irregular contours and oblique features on the sides of the parts. At present, the mold parts to be processed have a high degree of variation in shape. Many irregular, small, and thin-walled mold parts do not have a complete and continuous side datum plane, or only have local side datums with very small width and area. The effective support area of ​​the datum is insufficient, making it impossible to directly lay them flat on the machine tool processing platform for clamping and positioning.

[0003] For irregularly shaped parts without reliable lateral references, the mainstream processing solutions in the industry can only use a sinusoidal magnetic table for angle adjustment, or first use a flat-jaw pliers to clamp and fix the part, and then place it on the sinusoidal magnetic table for secondary angle adjustment. The entire clamping process involves multiple redundant operations: operators need to perform trigonometric function conversions in advance according to the theoretical angles on the drawings, repeatedly adjust the tilt angle of the sinusoidal magnetic table, and additionally use glue to reinforce the parts to avoid displacement caused by processing vibrations. The overall clamping and angle adjustment process is complicated and the operation chain is lengthy, with long clamping time for a single part; moreover, manual angle calculation, manual leveling, and glue bonding all introduce a large amount of human error, which can easily lead to problems such as angle deviation, part slippage, and reference alignment deviation, ultimately causing the part's outline dimensions to exceed tolerances and batch scrapping, significantly increasing the processing and production costs and production cycle of mold parts, and making it difficult to meet the current processing needs of high-efficiency mass production of multi-variety, small-batch precision mold parts. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a clamping fixture for lateral machining, thereby solving the problem of difficulty in clamping irregularly shaped parts when machining their side profiles.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A clamp for lateral machining clamping includes a base, a rotating shaft, and a clamping seat; One end of the clamp is rotatably mounted on the base, and the other end of the clamp is provided with a sliding buckle. The sliding buckle slides on the clamp and cooperates with the clamp to fix the part to be processed; the rotating shaft passes through the base and is fixedly connected to the clamp.

[0006] Furthermore, the base is a cube structure, with a positioning hole through the center of the cube structure for the rotating shaft to pass through; a positioning groove that mates with the clamp is provided on one surface of the base.

[0007] Furthermore, the positioning groove includes a first positioning groove and a second positioning groove having a common geometric center; both the first positioning groove and the second positioning groove are square grooves, and the first positioning groove and the second positioning groove are arranged symmetrically about the common geometric center at 45° rotation, with the first positioning groove rotating 45° around the common geometric center to coincide with the second positioning groove; positioning holes are provided at the inner corners of both the first positioning groove and the second positioning groove; the clamp is disposed in the first positioning groove or the second positioning groove.

[0008] Furthermore, the clamping base includes an integrated connecting part and a clamping part; the connecting part is disposed in a positioning groove on the base and connected to the rotating shaft; the clamping part cooperates with a sliding buckle to fix the workpiece to be processed.

[0009] Furthermore, the connecting part is a cube structure, with its bottom connected to the clamping part, and a circular groove is opened at the geometric center of its top surface. A connecting post is provided in the circular groove, and multiple screw holes are provided around the circular groove. The top of the cube-shaped connecting part is embedded in the first positioning groove, or the connecting part is rotated 45° and embedded in the second positioning groove, and is fixedly connected to the base by bolts.

[0010] Furthermore, the rotating shaft is a cylindrical structure with a connecting groove on the top surface of one end; one end of the rotating shaft passes through the base, and its connecting groove is inserted into the connecting column; and the rotating shaft is fixedly connected to the clamp by inserting pins into the pin holes on the connecting column and the rotating shaft.

[0011] Furthermore, both the connecting groove and the connecting column have a regular hexagonal cross-section.

[0012] Furthermore, the bottom of the clamping part is a clamping surface, and two parallel sliding grooves are formed on the clamping surface. The sliding grooves are dovetail grooves, with one end of the dovetail grooves open. A baffle is provided at one end of the clamping surface, and a slot is formed on the baffle. The slot has two holes that communicate with the two sliding grooves respectively. A slot strip is provided on the slot, and the slot strip has two screw holes that communicate with the two dovetail grooves respectively. The two screw holes cooperate with the screw rod.

[0013] Furthermore, the sliding buckle is configured in two parts, each including a sliding head and a sliding plate connected to the bottom of the sliding head; the sliding head has a dovetail-shaped structure, at least one of the sliding heads is embedded in a dovetail groove, and the position of the sliding buckle is moved by operating the sliding plate located outside the clamping surface; the part to be processed is clamped between the sliding plate and the baffle, and the screw is screwed into the slotted strip and the sliding groove in sequence until it is fixedly connected with the screw hole on the sliding head, thereby fixing the part to be processed between the sliding plate and the baffle.

[0014] The clamping fixture for lateral machining provided by this invention has the following beneficial effects: 1. The fixture of this invention can reduce clamping time when irregularly shaped parts need to be side-processed. It eliminates the need to use a sinusoidal magnetic table for placement, calculate angles, and perform tedious steps such as applying glue, calculating angles, and adjusting leveling, thereby reducing the corresponding processing costs. At the same time, the part is directly clamped instead of being adsorbed or pasted during the side-processing process, minimizing the loosening of parts during processing and improving the part qualification rate.

[0015] 2. The fixture of this invention features a 45° rotationally symmetrical arrangement of double positioning slots on the base, combined with a rotatable clamping seat, completely eliminating the traditional processing mode of adjusting the angle with a sinusoidal magnetic table and using glue for auxiliary fixation. When processing the lateral features of irregularly shaped mold parts, there is no need for operators to manually calculate the processing tilt angle or repeatedly adjust the tooling for leveling. The parts are rigidly clamped by the clamping seat and sliding buckle, eliminating redundant processes such as glue curing and glue removal after processing. This significantly shortens the preparation time for clamping a single part, simplifies the overall processing flow, effectively reduces the auxiliary processing time for multi-variety, small-batch mold parts, and significantly compresses the production cycle of a single piece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a fixture used for lateral machining clamping in the embodiment. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the fixture used for lateral machining clamping in the embodiment. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the fixture used for lateral machining clamping in the embodiment. Figure 3 .

[0019] Figure 4 This is a schematic diagram of the clamp in the embodiment. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the clamp in the embodiment. Figure 2 .

[0021] Figure 6 This is a schematic diagram of the clamp in the embodiment. Figure 3 .

[0022] Figure 7 This is a schematic diagram of the base in the embodiment. Figure 1 .

[0023] Figure 8 This is a schematic diagram of the base in the embodiment. Figure 2 .

[0024] Figure 9 This is a schematic diagram of the rotating shaft in the embodiment. Figure 1 .

[0025] Figure 10 This is a schematic diagram of the rotating shaft in the embodiment. Figure 2 .

[0026] Figure 11 This is a schematic diagram of the sliding buckle in the embodiment. Figure 1 .

[0027] Figure 12 This is a schematic diagram of the sliding buckle in the embodiment. Figure 2 .

[0028] Wherein, 1 is the base; 11 is the first positioning groove; 12 is the second positioning groove; and 13 is the positioning hole. 2. Rotating shaft; 21. Connecting groove; 3. Clamping seat; 31. Connecting part; 32. Clamping part; 33. Connecting post; 34. Screw hole; 35. Pin hole; 36. Slide groove; 37. Clamping surface; 38. Baffle; 39. Slot; 4. Sliding buckle; 41. Slippery head; 42. Skateboard; 5. Slot strip; 6. Screw. Detailed Implementation

[0029] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0030] This embodiment provides a fixture for lateral machining clamping, see reference. Figures 1-3 It includes a base 1, a rotating shaft 2, and a clamp 3; In some embodiments, one end of the clamp 3 is rotatably mounted on the base 1, and the other end of the clamp 3 is provided with a sliding buckle 4. The sliding buckle 4 slides on the clamp 3 and cooperates with the clamp 3 to fix the part to be processed.

[0031] In some embodiments, the rotating shaft 2 passes through the base 1 and is fixedly connected to the clamp 3; the rotating shaft 2 is fixed on the clamp 3 by means of a pin, and is connected to the base 1, acting to rotate the clamp 3 at an angle, and is also used for positioning the clamp 3 on the base 1.

[0032] In one specific embodiment, reference is made to Figure 7 and Figure 8The base 1 is a cube structure with a positioning hole 13 through the center for the rotating shaft 2 to pass through. A positioning groove that mates with the clamp 3 is provided on one surface of the base 1. The positioning groove includes a first positioning groove 11 and a second positioning groove 12 with a common geometric center. Both the first positioning groove 11 and the second positioning groove 12 are square grooves. The first positioning groove 11 and the second positioning groove 12 are arranged in a 45° rotational symmetry about the common geometric center. The first positioning groove 11 is rotated 45° around the common geometric center to coincide with the second positioning groove 12. Positioning holes 13 are provided at the inner corners of the first positioning groove 11 and the second positioning groove 12. The positioning holes 13 are engaged with bolts to fix the clamp 3. The clamp 3 is set in the first positioning groove 11 or the second positioning groove 12.

[0033] In some embodiments, reference Figures 4-6 The clamp 3 includes an integrated connecting part 31 and a clamping part 32. The connecting part 31 is disposed in the positioning groove on the base 1 and is connected to the rotating shaft 2. The clamping part 32 cooperates with the sliding buckle 4 to fix the part to be processed.

[0034] In one specific embodiment, the connecting part 31 has a cubic structure, with its bottom connected to the clamping part 32. A circular groove is formed at the geometric center of its top surface, and a connecting post 33 is provided in the circular groove. The connecting post 33 is used to fix the rotating shaft 2. Corresponding pin holes 35 are provided on the connecting post 33 and the connecting part 31. Multiple screw holes 34 are provided around the circular groove. The top of the cubic connecting part 31 is embedded in the first positioning groove 11, or the connecting part 31 is rotated 45° and embedded in the second positioning groove 12. The clamping seat 3 and the base 1 are fixedly connected by screws into the screw holes 34 on the connecting part 31 and the positioning holes 13 on the base 1.

[0035] In one specific embodiment, reference is made to Figure 9 and Figure 10 The rotating shaft 2 is a cylindrical structure with a connecting groove 21 on the top surface of one end. One end of the rotating shaft 2 passes through the base 1, and its connecting groove 21 is inserted into the connecting post 33. A pin is inserted into the pin hole 35 on the connecting post 33 and the rotating shaft 2 to fix the rotating shaft 2 to the clamp 3. The cross-section of both the connecting groove 21 and the connecting post 33 is a regular hexagon, which makes the fixing between the rotating shaft 2 and the clamp 3 more secure.

[0036] In one specific embodiment, the bottom of the clamping part 32 is a clamping surface 37. Two parallel sliding grooves 36 are formed on the clamping surface 37. The sliding grooves 36 are dovetail grooves with one end open. A baffle 38 is provided at one end of the clamping surface 37. A slot 39 is formed on the baffle 38. Two holes are formed on the slot 39 that communicate with the two sliding grooves 36 respectively. A slot strip 5 is provided on the slot 39. The slot strip has two screw holes that communicate with the two dovetail grooves respectively. The two screw holes cooperate with the screw rod 6.

[0037] refer to Figure 11 and Figure 12 There are two sliding buckles 4. Each sliding buckle 4 includes a sliding head 41 and a sliding plate 42 connected to the bottom of the sliding head 41. The sliding head 41 has a dovetail-shaped structure, and at least one of the sliding heads 41 is embedded in a dovetail groove. The position of the sliding buckle 4 is moved by operating the sliding plate 42 located outside the clamping surface 37. The part to be processed is clamped between the sliding plate 42 and the baffle 38, and the screw 6 is screwed into the slotted strip and the sliding groove 36 in sequence until it is fixedly connected with the screw hole on the sliding head 41, thereby fixing the part to be processed between the sliding plate 42 and the baffle 38. In specific operation, one or two sliding buckles 4 can be selected depending on the size of the part. It is not always necessary to have two sliding buckles 4 to fix the part.

[0038] When in use, place the fixture on the magnetic platform, level the fixture, put the clamp 3 into the base 1 and fix it with bolts, move the sliding buckle 4, place the part to be processed on the clamping part 32 of the clamp 3, and lock it with the screw 6, and you can start processing. If you need to adjust the processing angle (for easier processing), loosen the screw of the clamp 3, rotate the rotating shaft 245° to the positioning groove on the base 1, and lock the clamp 3 and the base 1 again to realize the angle conversion processing.

[0039] Although specific embodiments of the invention have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by a person skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A clamping fixture for lateral machining, characterized in that, Includes a base, a rotating shaft, and a clamp; One end of the clamp is rotatably mounted on the base, and the other end of the clamp is provided with a sliding buckle. The sliding buckle slides on the clamp and cooperates with the clamp to fix the part to be processed; the rotating shaft passes through the base and is fixedly connected to the clamp.

2. The fixture for lateral machining clamping according to claim 1, characterized in that, The base is a cube structure, with a positioning hole through the center of the cube for the rotating shaft to pass through; a positioning groove that mates with the clamp is provided on one surface of the base.

3. The fixture for lateral machining clamping according to claim 2, characterized in that, The positioning groove includes a first positioning groove and a second positioning groove having a common geometric center; both the first positioning groove and the second positioning groove are square grooves, and the first positioning groove and the second positioning groove are arranged symmetrically about the common geometric center at 45° rotation, with the first positioning groove rotating 45° about the common geometric center to coincide with the second positioning groove; positioning holes are provided at the inner corners of the first positioning groove and the second positioning groove; the clamp is disposed in the first positioning groove or the second positioning groove.

4. The fixture for lateral machining clamping according to claim 1, characterized in that, The clamping base includes an integrated connecting part and a clamping part; the connecting part is disposed in a positioning groove on the base and is connected to the rotating shaft; the clamping part cooperates with a sliding buckle to fix the part to be processed.

5. The fixture for lateral machining clamping according to claim 4, characterized in that, The connecting part is a cube structure, with its bottom connected to the clamping part. A circular groove is opened at the geometric center of its top surface. A connecting post is provided in the circular groove, and multiple screw holes are provided around the periphery of the circular groove. The top of the cube-shaped connecting part is embedded in the first positioning groove, or the connecting part is rotated 45° and embedded in the second positioning groove, and is fixedly connected to the base by bolts.

6. The fixture for lateral machining clamping according to claim 5, characterized in that, The rotating shaft is a cylindrical structure with a connecting groove on the top surface of one end; one end of the rotating shaft passes through the base, and its connecting groove is inserted into the connecting column; and the rotating shaft is fixedly connected to the clamp by inserting pins into the pin holes on the connecting column and the rotating shaft.

7. The fixture for lateral machining clamping according to claim 6, characterized in that, Both the connecting groove and the connecting column have a regular hexagonal cross-section.

8. The fixture for lateral machining clamping according to claim 5, characterized in that, The bottom of the clamping part is a clamping surface, and two parallel sliding grooves are formed on the clamping surface. The sliding grooves are dovetail grooves, with one end of the dovetail grooves open. A baffle is provided at one end of the clamping surface. A slot is formed on the baffle. The slot has two holes that communicate with the two sliding grooves respectively. A slot strip is provided on the slot. The slot strip has two screw holes that communicate with the two dovetail grooves respectively. The two screw holes cooperate with the screw rod.

9. The fixture for lateral machining clamping according to claim 5, characterized in that, The sliding buckle is configured in two parts, each including a sliding head and a sliding plate connected to the bottom of the sliding head. The sliding head has a dovetail-shaped structure, and at least one of the sliding heads is embedded in a dovetail groove. The position of the sliding buckle is moved by operating the sliding plate located outside the clamping surface. The part to be processed is clamped between the sliding plate and the baffle, and the screw is screwed into the slotted strip and the sliding groove in sequence until it is fixedly connected with the screw hole on the sliding head, thereby fixing the part to be processed between the sliding plate and the baffle.

Images