CNC tool clamp

Abstract

The utility model relates to the technical field of machining clamps, and discloses a CNC tool clamp which comprises a connecting base. The clamping groove is formed in the top face of the connecting base and used for containing a workpiece, an impurity removing structure for removing machining chippings is arranged in the clamping groove and comprises a push plate, a first sliding body and a second sliding body, the push plate is located in the clamping groove and slidably connected with the connecting base, the first sliding body is elastically connected with the push plate and abuts against the inner bottom face of the connecting base, and the second sliding body abuts against the inner bottom face of the connecting base. Two second sliding bodies which are elastically connected with each other are arranged on the wall surface of the push plate, the first sliding bodies abut against the inner bottom surface of the connecting base under the pushing action of the first elastic pieces, scraping cleaning of the inner bottom surface of the connecting base is achieved along with linear sliding of the push plate, the two second sliding bodies abut against the inner side wall surface of the connecting base, and cleaning of the inner side wall surface of the connecting base is achieved; the probability that chippings leak from a gap between the push plate and the inner wall face of the connecting base can be reduced, a better cleaning effect is achieved, and abrasion of rigid contact to the connecting base can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining fixtures, in particular to a CNC tooling fixture. Background Art

[0002] The application of CNC in furniture production can be used for pattern carving, which can improve the appearance and quality of the product. Before processing, the workpiece needs to be clamped and fixed with a fixture.

[0003] The prior art discloses a CNC tooling fixture (CN202311436755.1), comprising a clamping body, the interior of which is provided with a clamping groove for placing a workpiece; a plurality of clamping plate placement grooves are opened inside the clamping body; a clamping plate is slidably installed inside the clamping plate placement groove, and the clamping plate is used to clamp the workpiece; a plurality of tightening nuts are rotatably connected to the top end of the clamping body, and after the plurality of tightening nuts are rotated, each clamping plate is squeezed and fixed respectively; a tightening device is slidably installed on the top end of the clamping body; a plurality of tightening rotating columns are rotatably installed on the tightening device; a nut rotating head is slidably installed on the bottom end of the tightening rotating column; the present invention drives multiple tightening rotating columns to move synchronously through a third threaded rod, and the tightening rotating columns are simultaneously clamped in the position of the tightening nuts to tighten the screws.

[0004] In the prior art, processing debris will remain in the clamping groove used to clamp the workpiece. In order to solve this problem, a plate driven by a screw is installed to squeeze and push the debris for cleaning. In order for the plate to be able to slide in the groove, the size of the plate will be smaller than the size of the groove. During the sliding process of the plate, smaller debris will be stuck between the plate and the base, causing scratches on the base. As time goes by, the plate will produce gaps due to wear, and the chip cleaning effect will decay. Therefore, the prior art has room for optimization for chip cleaning.

[0005] To this end, we propose a CNC tooling fixture. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a CNC tooling fixture.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a CNC tooling fixture, including a connecting seat; a clamping groove for placing a workpiece is opened on the top surface of the connecting seat, a plurality of clamping blocks are arranged in the clamping groove, the clamping blocks press the workpiece against the inner wall of the connecting seat, the clamping groove is provided with a debris removal structure for cleaning processing debris, the debris removal structure includes a push plate, a first sliding body and a second sliding body, the push plate is located in the clamping groove and is slidably connected to the connecting seat, the first sliding body is elastically connected to the push plate and presses against the inner bottom surface of the connecting seat, the wall surface of the push plate is provided with two second sliding bodies elastically connected to each other, the two second sliding bodies respectively press against the inner wall surfaces on both sides opposite to each other, and the first sliding body and the second sliding body can discharge the debris in the clamping groove as the push plate slides.

[0008] As a preferred embodiment of the utility model, a cross bar is fixedly mounted on the top surface of the push plate, a threaded hole is opened on the wall surface of the cross bar, a screw rod is rotatably connected to the wall surface of the connecting seat, and the screw rod is connected to the threaded hole of the cross bar.

[0009] As a preferred embodiment of the present invention, a vertical slide groove is provided at the bottom of the push plate, the first sliding body is located in the vertical slide groove, and a first elastic member is provided in the vertical slide groove to push the first sliding body downward to contact the inner bottom surface of the connecting seat.

[0010] As a preferred embodiment of the present invention, the vertical slide groove forms a rectangular groove, the depth of the vertical slide groove is less than the height of the push plate, and the first sliding body forms a block structure adapted to the vertical slide groove.

[0011] As a preferred embodiment of the present invention, the first elastic member includes a spring but is not limited to a spring, and the first elastic member is installed between the top surface of the first sliding body and the inner top surface of the push plate.

[0012] As a preferred embodiment of the present invention, a horizontal slide groove is provided on the side wall of the first sliding body, and two of the second sliding bodies are located in the horizontal slide groove. A second elastic member is provided between the two second sliding bodies to push the two second sliding bodies away from each other.

[0013] As a preferred embodiment of the utility model, the horizontal slide groove runs through the entire first sliding body, the second sliding body and the horizontal slide groove are adapted to each other and slide in the horizontal slide groove, the second elastic member includes a spring but is not limited to a spring, a gap is left between the two second sliding bodies, and the second elastic member is installed on the wall surface where the two second sliding bodies are close to each other.

[0014] As a preferred embodiment of the utility model, the impurity removal structure also includes a resisting rod detachably mounted on the side wall of the second sliding body and the bottom of the first sliding body, the side wall of the second sliding body and the bottom of the first sliding body are both provided with a slot, the wall surface of the resisting rod is provided with an integrally formed protrusion, the protrusion is interference-fitted with the slot and plugged in

[0015] Beneficial Effects

[0016] The utility model provides a CNC fixture, which has the following beneficial effects:

[0017] 1. This CNC tooling fixture uses a first sliding body that slides vertically. The first sliding body contacts the inner bottom surface of the connecting seat under the pushing action of the first elastic member. As the push plate slides linearly, the inner bottom surface of the connecting seat is scraped and cleaned. Two second sliding bodies that are horizontally elastically connected are arranged. The two second sliding bodies contact the inner wall surface of the connecting seat to clean the inner wall surface of the connecting seat. The probability of debris leaking from the gap between the push plate and the inner wall surface of the connecting seat during the sliding of the push plate in the clamping groove can be reduced, and the cleaning effect is better. At the same time, the first sliding body and the second sliding body of the elastic member can reduce the wear of the connecting seat due to rigid contact on the basis of ensuring the cleaning effect of the clamping groove.

[0018] 2. This CNC tooling fixture, through the elastic connection of the first sliding body and the second sliding body, is compared with the prior art that uses a whole push plate to push debris. This solution can automatically make up for the gap between the push plate and the inner wall of the connecting seat caused by wear, thereby ensuring the cleaning effect and service life, and the cleaning effect is more stable.

[0019] 3. This CNC tooling fixture can achieve elastic contact with the connecting seat by elastically connecting the first sliding body and the second sliding body, thereby reducing the probability of debris getting stuck in the gap between the push plate and the connecting seat, thereby avoiding the phenomenon of debris getting stuck and scratching the inner wall of the connecting seat as the push plate moves.

[0020] 4. This CNC tooling fixture is provided with a resistance rod, which is a semi-cylindrical structure. The protrusion is located at the cross section of the resistance rod, and the horizontal cross section of the protrusion is bow-shaped. The protrusion is inserted into the slot, so that the resistance rod is installed on the side wall of the second sliding body and the bottom of the first sliding body. The resistance rod is made of rubber material, which can further enhance the cleaning effect and the protective effect. The detachable design is also convenient for later disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0022] Figure 2 This is the second overall stereogram of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the push plate of the utility model;

[0024] Figure 4 This is one of the overall three-dimensional diagrams of the impurity removal structure of the utility model;

[0025] Figure 5This is the second overall stereogram of the impurity removal structure of the utility model;

[0026] Figure 6 It is a schematic diagram of the installation of the interference rod and the second sliding body.

[0027] Legend: 10, connecting seat; 11, clamping groove; 12, clamping block; 20, push plate; 21, first sliding body; 22, second sliding body; 23, vertical slide groove; 24, horizontal slide groove; 30, contact rod. DETAILED DESCRIPTION

[0028] A CNC fixture, such as Figure 1 and Figure 2 As shown, it includes a connecting seat 10; a clamping groove 11 for placing a workpiece is opened on the top surface of the connecting seat 10, and a plurality of clamping blocks 12 are arranged in the clamping groove 11. The clamping blocks 12 press the workpiece against the inner wall of the connecting seat 10. Specifically, a back plate is provided on the wall surface of the connecting seat 10, and a plurality of push rods are fixedly connected to the wall surface of the back plate. The push rods are fixedly connected to the corresponding clamping blocks 12, and the push rods are slidably connected to the connecting seat 10. A screw is provided on the side wall of the connecting seat 10, and the screw is threadedly connected to the back plate. The back plate is pushed by the screw rod to drive the various clamping blocks 12 to move synchronously, so as to realize the clamping of different positions of the same workpiece or the simultaneous clamping of multiple workpieces. This is an existing well-known technology and will not be elaborated here.

[0029] like Figure 2 , Figure 3 and Figure 4 as well as Figure 5As shown, a debris removal structure for cleaning processing debris is provided in the clamping groove 11, and the debris removal structure includes a push plate 20, a first sliding body 21 and a second sliding body 22. The push plate 20 is located in the clamping groove 11 and is slidably connected to the connecting seat 10. The first sliding body 21 is elastically connected to the push plate 20 and contacts the inner bottom surface of the connecting seat 10. Two second sliding bodies 22 elastically connected to each other are provided on the wall surface of the push plate 20. The two second sliding bodies 22 respectively contact the inner wall surfaces of the connecting seat 10 on both sides. The first sliding body 21 and the second sliding body 22 can discharge the debris in the clamping groove 11 as the push plate 20 slides. A cross bar is fixedly installed on the top surface of the push plate 20, and a threaded hole is opened on the wall surface of the cross bar. The wall surface of the connecting seat 10 is rotatably connected with The screw rod is connected to the threaded hole of the cross bar. A vertical slide groove 23 is provided at the bottom of the push plate 20. The first sliding body 21 is located in the vertical slide groove 23. A first elastic member is provided in the vertical slide groove 23 to push the first sliding body 21 to move downward to contact the inner bottom surface of the connecting seat 10. The vertical slide groove 23 forms a rectangular groove. The depth of the vertical slide groove 23 is less than the height of the push plate 20. The first sliding body 21 forms a block structure adapted to the vertical slide groove 23. The first elastic member includes but is not limited to a spring. The first elastic member is installed between the top surface of the first sliding body 21 and the inner top surface of the push plate 20. A horizontal slide groove 24 is provided on the side wall of the first sliding body 21. Two second sliding bodies 22 are located in the horizontal slide groove 24. A second elastic member is provided to push the two second sliding bodies 22 away from each other, the horizontal slide groove 24 runs through the entire first sliding body 21, the second sliding body 22 and the horizontal slide groove 24 are adapted to each other and slide in the horizontal slide groove 24, the second elastic member includes a spring but is not limited to a spring, a gap is left between the two second sliding bodies 22, and the second elastic member is installed on the wall surface where the two second sliding bodies 22 are close to each other. In this solution, specifically, the push plate 20, the first sliding body 21 and the second sliding body 22 are all rectangular plate structures, and the first sliding body 21 is pushed by the first elastic member through the vertical sliding first sliding body 21, and the first sliding body 21 contacts the inner bottom surface of the connecting seat 10 under the pushing action of the first elastic member, and with the linear sliding of the push plate 20, the inner bottom surface of the connecting seat 10 is realized. In order to scrape and clean the bottom surface, two horizontally elastically connected second sliding bodies 22 are set. The two second sliding bodies 22 are in contact with the inner wall of the connecting seat 10 to clean the inner wall of the connecting seat 10. This can reduce the probability of debris leaking from the gap between the push plate 20 and the inner wall of the connecting seat 10 during the sliding of the push plate 20 in the clamping groove 11, and has a better cleaning effect. At the same time, the first sliding body 21 and the second sliding body 22 of the elastic member can reduce the wear of the connecting seat 10 caused by rigid contact on the basis of ensuring the cleaning effect of the clamping groove 11, and can achieve more thorough cleaning of wood debris or debris of other decorative parts in the furniture processing process, ensuring that there are no foreign objects in the clamping groove 11 and the clamping is more stable.

[0030] Through the elastic connection between the first sliding body 21 and the second sliding body 22, compared with the prior art in which the whole push plate 20 is used to push the debris, this solution can automatically make up for the gap between the push plate 20 and the inner wall of the connecting seat 10 caused by wear, thereby ensuring the cleaning effect and service life, and the cleaning effect is more stable.

[0031] By elastically connecting the first sliding body 21 and the second sliding body 22, elastic contact with the connecting seat 10 can be achieved, reducing the probability of debris getting stuck in the gap between the push plate 20 and the connecting seat 10, thereby avoiding the phenomenon of debris getting stuck and scratching the inner wall of the connecting seat 10 as the push plate 20 moves.

[0032] like Figure 6 As shown, the impurity removal structure also includes a resistance rod 30 detachably mounted on the side wall of the second sliding body 22 and the bottom of the first sliding body 21. Slots are provided on the side wall of the second sliding body 22 and the bottom of the first sliding body 21. The wall surface of the resistance rod 30 is provided with an integrally formed protrusion, which is interference fit and plugged into the slot. As a supplementary explanation to the above scheme, by setting the resistance rod 30, the resistance rod 30 is a semi-cylindrical structure, the protrusion is located at the cross section of the resistance rod 30, and the horizontal cross section of the protrusion is arched. The protrusion is inserted into the slot, so that the resistance rod 30 is installed on the side wall of the second sliding body 22 and the bottom of the first sliding body 21. The resistance rod 30 is made of rubber, which can further enhance the cleaning effect and protection effect. The detachable design is also convenient for later disassembly and replacement.

[0033] The working principle of the utility model is as follows: the wall surface of the connecting seat 10 is provided with a back plate, the wall surface of the back plate is fixedly connected with a plurality of push rods, the push rods are fixedly connected with the corresponding clamping blocks 12, the push rods are slidably connected with the connecting seat 10, the side wall of the connecting seat 10 is provided with a screw rod, the screw rod is threadedly connected with the back plate, and the screw rod pushes the back plate to drive the various clamping blocks 12 to move synchronously, so as to realize the clamping of different positions of the same workpiece or the simultaneous clamping of multiple workpieces;

[0034] The cross bar is driven by another screw rod to drive the push plate 20 to slide. The resistance rod 30 is a semi-cylindrical structure. The protrusion is located at the cross section of the resistance rod 30. The horizontal cross section of the protrusion is arched. The protrusion is inserted into the slot, so that the side wall of the second sliding body 22 and the bottom of the first sliding body 21 are installed with the resistance rod 30. The resistance rod 30 is made of rubber material to achieve elastic contact with the connecting seat 10. The first sliding body 21 that slides vertically, the first sliding body 21 contacts the inner bottom surface of the connecting seat 10 under the pushing action of the first elastic member. With the linear sliding of the push plate 20, the scraping and cleaning of the inner bottom surface of the connecting seat 10 is achieved, and two horizontally elastically connected second sliding bodies 22 are provided. The two second sliding bodies 22 contact the inner side wall surface of the connecting seat 10 to achieve the cleaning of the inner side wall surface of the connecting seat 10, which can reduce the probability of debris leaking from the gap between the push plate 20 and the inner wall surface of the connecting seat 10 during the sliding of the push plate 20 in the clamping groove 11.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A CNC fixture, comprising a connecting seat (10); a clamping groove (11) provided on the top surface of the connecting seat (10) for placing a workpiece, a plurality of clamping blocks (12) provided in the clamping groove (11), the clamping blocks (12) press the workpiece against the inner wall of the connecting seat (10), Features: The clamping groove (11) is provided with a debris removal structure for cleaning processing debris, and the debris removal structure includes a push plate (20), a first sliding body (21) and a second sliding body (22). The push plate (20) is located in the clamping groove (11) and is slidably connected to the connecting seat (10). The first sliding body (21) is elastically connected to the push plate (20) and contacts the inner bottom surface of the connecting seat (10). Two second sliding bodies (22) elastically connected to each other are arranged on the wall surface of the push plate (20). The two second sliding bodies (22) respectively contact the inner wall surfaces on both sides opposite to each other of the connecting seat (10). The first sliding body (21) and the second sliding body (22) can discharge the debris in the clamping groove (11) as the push plate (20) slides.

2. The CNC fixture according to claim 1, Features: A cross bar is fixedly mounted on the top surface of the push plate (20), a threaded hole is opened on the wall surface of the cross bar, and a screw rod is rotatably connected to the wall surface of the connecting seat (10), and the screw rod is connected to the threaded hole of the cross bar.

3. The CNC fixture according to claim 1, Features: A vertical slide groove (23) is provided at the bottom of the push plate (20), the first sliding body (21) is located in the vertical slide groove (23), and a first elastic member is provided in the vertical slide groove (23) for pushing the first sliding body (21) to move downward to contact the inner bottom surface of the connecting seat (10).

4. The CNC fixture according to claim 3, Features: The vertical slide groove (23) forms a rectangular groove, the depth of the vertical slide groove (23) is less than the height of the push plate (20), and the first sliding body (21) forms a block structure adapted to the vertical slide groove (23).

5. The CNC fixture according to claim 3, Features: The first elastic member includes a spring but is not limited to a spring. The first elastic member is installed between the top surface of the first sliding body (21) and the inner top surface of the push plate (20).

6. The CNC fixture according to claim 1, Features: A horizontal slide groove (24) is provided on the side wall of the first sliding body (21), and the two second sliding bodies (22) are located in the horizontal slide groove (24). A second elastic member is provided between the two second sliding bodies (22) for squeezing and pushing the two second sliding bodies (22) away from each other.

7. The CNC fixture according to claim 6, Features: The horizontal slide groove (24) runs through the entire first sliding body (21); the second sliding body (22) and the horizontal slide groove (24) are adapted to each other and slide in the horizontal slide groove (24); the second elastic member includes a spring but is not limited to a spring; a gap is left between the two second sliding bodies (22); and the second elastic member is installed on the wall surfaces of the two second sliding bodies (22) that are close to each other.

8. The CNC fixture according to claim 6, Features: The impurity removal structure also includes a resistance rod (30) detachably mounted on the side wall of the second sliding body (22) and the bottom of the first sliding body (21); the side wall of the second sliding body (22) and the bottom of the first sliding body (21) are both provided with slots; the wall surface of the resistance rod (30) is provided with an integrally formed protrusion, which is interference-fitted and plugged into the slot.

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