Clamp assembly and broaching machine

Abstract

The utility model discloses a clamp assembly and a broaching machine. The clamp assembly comprises a base, a clamping piece and a clamping piece, a workpiece placing position is arranged at the upper end of the receiving and feeding sliding table, and the receiving and feeding sliding table is arranged on the base in a sliding mode in the first horizontal direction and used for driving a workpiece to be close to or away from the machining position; the limiting supporting seats are arranged on the base, and the limiting supporting seats are configured in the mode that when the material receiving and feeding sliding table moves to the machining position, the limiting supporting seats are located under the material receiving and feeding sliding table, and gaps in the vertical direction are reserved between the limiting supporting seats and the material receiving and feeding sliding table; and the two jacking mechanisms are arranged on the two opposite sides of the material receiving and feeding sliding table in the second horizontal direction, and the jacking mechanisms are configured in the mode that when the material receiving and feeding sliding table moves to the machining position, the two jacking mechanisms jack the two end faces, in the second horizontal direction, of the material receiving and feeding sliding table in the second horizontal direction correspondingly, and the second horizontal direction is perpendicular to the first horizontal direction. According to the utility model, the precision of workpiece processing can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of broaching machines, in particular to a clamp assembly and a broaching machine. Background Art

[0002] When processing deep grooves on workpieces, a broaching machine is usually used for broaching. During processing, processing accuracy is the most important factor affecting the quality of the workpiece, and the fixture assembly of the broaching machine is one of the factors that has the greatest impact on processing accuracy. The fixture assembly of the broaching machine generally includes a base and a material receiving and feeding slide slidably arranged on the base. The material receiving and feeding slide is used to move between the loading and unloading positions and the processing position to receive and feed the workpiece, and a positioning structure is provided thereon to position the workpiece. When the existing broaching machine is performing broaching, it is affected by the downward force generated by the broaching tool and the overall vibration of the broaching machine, and the material receiving and feeding slide of its fixture assembly is prone to downward deformation and lateral shaking, thereby affecting the processing accuracy of the workpiece. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a clamp assembly that can improve the precision of workpiece processing.

[0004] The utility model also provides a broaching machine.

[0005] According to the first aspect of the present invention, the clamp assembly is used for a broaching machine, and the clamp assembly includes:

[0006] Pedestal;

[0007] A material receiving and feeding slide, with a workpiece placement position at the upper end, the material receiving and feeding slide is slidably arranged on the base along a first horizontal direction, and is used to drive the workpiece to approach or move away from the processing position;

[0008] A plurality of position-limiting support seats are arranged on the base, and the position-limiting support seats are configured such that when the material receiving and conveying slide moves to the processing position, the position-limiting support seats are located directly below the material receiving and conveying slide and a gap in the vertical direction is reserved with the material receiving and conveying slide;

[0009] Two supporting mechanisms are arranged on opposite sides of the material receiving and conveying slide along the second horizontal direction, and the supporting mechanisms are configured as follows: when the material receiving and conveying slide moves to the processing position, the two supporting mechanisms respectively support the two end surfaces of the material receiving and conveying slide along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.

[0010] The clamp assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0011] By setting a number of limit support seats, when the material receiving and feeding slide moves to the processing position, the limit support seats are located directly below the material receiving and feeding slide and a vertical gap is reserved with the material receiving and feeding slide. Therefore, when the broach is used for broaching, the limit support seats can support the material receiving and feeding slide to prevent the material receiving and feeding slide from deforming downward under the influence of the broaching force, thereby improving the processing accuracy. In addition, by setting two supporting mechanisms to support the material receiving and feeding slide from both ends when the material receiving and feeding slide moves to the processing position, the material receiving and feeding slide can be locked during processing to prevent the material receiving and feeding slide from lateral shaking, thereby improving the processing accuracy.

[0012] According to some embodiments of the utility model, the supporting mechanism is provided with a first driving member and a supporting portion, the first driving member has an output shaft which can be extended and retracted along the second horizontal direction, the supporting portion is connected to the output shaft and is used to support the material receiving and feeding slide.

[0013] According to some embodiments of the utility model, an anti-slip pattern is provided on the end surface of the supporting portion for contacting the material receiving and feeding slide.

[0014] According to some embodiments of the present invention, the first driving member is configured as a hydraulic cylinder.

[0015] According to some embodiments of the utility model, a linear rail group is provided on the base, and the linear rail group includes at least two linear rails extending along the first horizontal direction, and the material receiving and feeding slide is slidably installed on the base through the linear rail group.

[0016] According to some embodiments of the present invention, the gap has a value range of 0.005 mm-0.01 mm.

[0017] According to some embodiments of the utility model, the base includes a bottom plate and two splash-proof vertical plates arranged on opposite sides of the bottom plate along the second horizontal direction, and when the material receiving and conveying slide moves to the processing position, the material receiving and conveying slide is located between the two splash-proof vertical plates.

[0018] According to some embodiments of the utility model, the base is provided with a tool guide sleeve on the upper side of the material receiving and feeding slide, and the tool guide sleeve has a guide hole extending vertically and matching with the broach, for allowing the broach to pass through so as to guide the broach.

[0019] According to some embodiments of the utility model, a cooling component is also included, which includes a diverter seat, a water inlet pipe and a plurality of nozzles. The diverter seat is installed on the material receiving and feeding slide, and the diverter seat is hollow. The water inlet pipe is connected to the diverter seat to transport cooling water to the inner cavity of the diverter seat. A plurality of nozzles are installed on the diverter seat to spray the cooling water in the inner cavity of the diverter seat to the workpiece placed in the workpiece placement position.

[0020] The broaching machine according to the second embodiment of the utility model includes all the beneficial effects brought by the clamp assembly of the first embodiment.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 It is an axial schematic diagram of a clamp assembly of an embodiment of the utility model;

[0024] Figure 2 is a front view of a clamp assembly according to an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a material receiving and feeding slide and a supporting mechanism of an embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the structural decomposition of the clamp assembly of an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the holding mechanism of an embodiment of the utility model;

[0028] Figure 6 It is a schematic structural diagram of a cooling assembly according to an embodiment of the utility model.

[0029] Figure Number:

[0030] Base 100, linear rail 110, bottom plate 120, rear baffle 121, top plate 122, splashproof vertical plate 130, tool guide sleeve 140, guide hole 141, workpiece clamping mechanism 150, third driving member 151, clamping member 152;

[0031] The material receiving and feeding slide 200, the workpiece 201, and the second driving member 210;

[0032] Limit support seat 300;

[0033] A supporting mechanism 400, a first driving member 410, and a supporting portion 420;

[0034] Broach 500;

[0035] Cooling assembly 600 , diverter seat 610 , water inlet pipe 620 , and nozzle 630 . DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference Figures 1 to 4 As shown, a fixture assembly of an embodiment of the utility model is used for a broaching machine, and the fixture assembly includes: a base 100, a material receiving and feeding slide 200, a plurality of limit support seats 300, and two supporting mechanisms 400. It should be noted that the base 100 is installed on the bed of the broaching machine. During broaching, the broach 500 moves downward relative to the workpiece 201 for broaching. The broach 500 can be fixed and the fixture assembly can be moved upward, or the fixture assembly can be fixed and the broach 500 can be moved downward.

[0041] The upper end of the feeding slide 200 is provided with a workpiece placement position for installing the workpiece 201. The feeding slide 200 is slidably arranged on the base 100 along the first horizontal direction, and is used to drive the workpiece 201 close to or away from the processing position. Specifically, in this embodiment, the first horizontal direction is the front-to-back direction, and the feeding slide 200 performs loading and unloading operations at the front end of the base 100. The upper end of the feeding slide 200 is provided with three workpiece placement positions for installing the workpiece 201, so as to process multiple workpieces 201 at the same time. The feeding slide 200 is transmission-connected with a second driving member 210 for driving it to slide along the first horizontal direction. The second driving member 210 can be a cylinder or an oil cylinder. In addition, it can be imagined that the feeding slide 200 and the base 100 both have a clearance hole for the broach 500 to pass vertically.

[0042] A plurality of limit support seats 300 are arranged on the base 100, and the limit support seats 300 are configured as follows: when the material receiving and feeding slide 200 moves to the processing position, the limit support seat 300 is located directly below the material receiving and feeding slide 200 and a vertical gap is reserved with the material receiving and feeding slide 200, that is, when the broaching tool 500 broaches the workpiece 201 and causes the material receiving and feeding slide 200 to have a tendency to deform downward, the limit support seat 300 can support the limit material receiving and feeding slide 200 to prevent the material receiving and feeding slide 200 from deforming downward, thereby improving the accuracy of the broaching process, and the vertical gap reserved between the limit support seat 300 and the material receiving and feeding slide 200 is to avoid the material receiving and feeding slide 200 from moving along the first horizontal direction and contacting with the limit support seat. 300 friction, avoid affecting the movement of the material receiving and feeding slide 200, in some specific embodiments, the upper end surface of the limit support seat 300 and the lower end surface of the material receiving and feeding slide 200 are both arranged horizontally, and the gap between the limit support seat 300 and the material receiving and feeding slide 200 in the vertical direction is the gap between the upper end surface of the limit support seat 300 and the lower end surface of the material receiving and feeding slide 200, and the value range of this gap is 0.005mm-0.01mm; it can be understood that in order to improve the effect of the limit support seat 300 in suppressing the downward deformation of the material receiving and feeding slide 200, the limit support seat 300 is arranged close to the processing position, and at least one limit support seat 300 is provided for each workpiece placement position corresponding to the material receiving and feeding slide 200.

[0043] The two supporting mechanisms 400 are respectively arranged on the opposite sides of the material receiving and feeding slide 200 along the second horizontal direction, and the supporting mechanisms 400 are configured as follows: when the material receiving and feeding slide 200 moves to the processing position, the two supporting mechanisms 400 respectively support the two end surfaces of the material receiving and feeding slide 200 along the second horizontal direction along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. Specifically, in this embodiment, the second horizontal direction is the left and right direction, and the two supporting mechanisms 400 are respectively arranged on the left and right sides of the material receiving and feeding slide 200. When the material receiving and feeding slide 200 moves to the processing position, the two supporting mechanisms 400 respectively support the left and right end surfaces of the material receiving and feeding slide 200 along the left and right directions. By setting up the two supporting mechanisms 400, the material receiving and feeding slide 200 is locked when it moves to the processing position to prevent the material receiving and feeding slide 200 from lateral shaking, so as to improve the accuracy of workpiece processing.

[0044] The clamp assembly of the embodiment of the utility model is provided with a plurality of limit support seats 300, so that when the material receiving and feeding slide 200 moves to the processing position, the limit support seat 300 is located directly below the material receiving and feeding slide 200 and a vertical gap is reserved with the material receiving and feeding slide 200, so that when the broach 500 is used for broaching, the limit support seat 300 can be used to support the limit material receiving and feeding slide 200 to prevent the material receiving and feeding slide 200 from deforming downward under the influence of the broaching force, thereby improving the processing accuracy; and two supporting mechanisms 400 are provided to support the material receiving and feeding slide 200 from both ends of the material receiving and feeding slide 200 when the material receiving and feeding slide 200 moves to the processing position, so that the material receiving and feeding slide 200 can be locked during processing to prevent the material receiving and feeding slide 200 from lateral shaking, thereby improving the processing accuracy.

[0045] In some specific embodiments, the conveying and receiving slide 200 is provided with a positioning structure at the workpiece placement position. When the workpiece 201 is installed, the workpiece 201 is supported on the conveying and receiving slide 200 and is laterally positioned by the positioning structure. The positioning structure can be a columnar structure adapted to the installation hole position on the workpiece 201. The specific structure can be set according to the type of the workpiece 201; Figure 1 and Figure 4 As shown, a workpiece clamping mechanism 150 is also provided on the base 100. The workpiece clamping mechanism 150 is used to press the workpiece 201 downward when the feeding slide 200 moves to the processing position. The workpiece clamping mechanism 150 includes a third driving member 151 installed on the base 100 and a clamping member 152 connected to the output end of the third driving member 151. The third driving member 151 is used to drive the clamping member 152 to rise and fall to press the workpiece 201 downward or separate from the workpiece 201 upward. The third driving member 151 can be a cylinder or an oil cylinder.

[0046] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that the supporting mechanism 400 is provided with a first driving member 410 and a supporting portion 420, the first driving member 410 is installed on the base 100, the first driving member 410 has an output shaft that can be extended and retracted along the second horizontal direction, the supporting portion 420 is connected to the output shaft and can move synchronously with the output shaft, and the supporting portion 420 is used to support the material receiving and feeding slide 200. Through the above-mentioned structural setting, the supporting portion 420 can easily support the material receiving and feeding slide 200 or detach from the material receiving and feeding slide 200. Contact, before and after processing, the first driving member 410 drives the supporting part 420 to move away from the material receiving and feeding slide 200 along the second horizontal direction to avoid obstruction to the sliding of the material receiving and feeding slide 200, and when the material receiving and feeding slide 200 slides to the processing position to be processed, the first driving member 410 drives the supporting part 420 to move closer to the material receiving and feeding slide 200 along the second horizontal direction, so that the supporting part 420 is supported on the end face of the material receiving and feeding slide 200 to lock the material receiving and feeding slide 200.

[0047] In some specific embodiments, reference Figure 5 As shown, the end surface of the supporting portion 420 that contacts the material receiving and conveying slide 200 is provided with an anti-slip pattern. By providing the anti-slip pattern, the friction between the supporting portion 420 and the material receiving and conveying slide 200 can be increased when the supporting portion 420 supports the material receiving and conveying slide 200, thereby improving the locking effect.

[0048] In some specific embodiments, reference Figure 5 As shown, the first driving member 410 is configured as a hydraulic cylinder, and the driving is stable and reliable; further, the first driving member 410 may be a single-acting hydraulic cylinder.

[0049] Reference Figure 1 and Figure 3 As shown, it can be understood that the base 100 is provided with a linear rail group, which includes at least two linear rails 110 extending along the first horizontal direction. The feeding slide 200 is slidably installed on the base 100 through the linear rail group. The linear rail 110 is provided to guide the base 100 for sliding, which has high precision and fast running speed. In addition, the linear rail 110 also has the advantages of long service life and low maintenance cost. In some specific embodiments, the linear rail 110 can be a roller type linear rail.

[0050] Reference Figures 1 to 4 As shown, it can be understood that the base 100 includes a bottom plate 120 and two splash-proof vertical plates 130 arranged on opposite sides of the bottom plate 120 along the second horizontal direction, and the material receiving and feeding slide 200 is slidably arranged on the bottom plate 120. When the material receiving and feeding slide 200 moves to the processing position, the material receiving and feeding slide 200 is located between the two splash-proof vertical plates 130. In this way, the splash-proof vertical plates 130 on both sides can prevent waste chips from splashing during processing. In some specific embodiments, the two supporting mechanisms 400 are respectively installed on the inner sides of the two splash-proof vertical plates 130, and the limit support seat 300 is installed on the bottom plate 120.

[0051] Reference Figure 1 and Figure 3 As shown, it can be understood that the base 100 is provided with a tool guide sleeve 140 on the upper side of the material receiving and feeding slide 200. The tool guide sleeve 140 has a guide hole 141 extending vertically and matching the broach 500, for the broach 500 to pass through so as to guide the broach 500. It can be understood that the broach 500 of the broaching machine is generally relatively long, and the broaching machine will only be provided with an upper tool clamp and a lower tool clamp to clamp the upper and lower ends of the broach 500 respectively. The rigidity of the middle section of the broach 500 is relatively poor, which affects the processing accuracy. In this embodiment, the tool guide sleeve 140 is provided on the base 100 to provide vertical guidance for the broach 500, thereby improving the rigidity of the middle section of the broach 500 and reducing the processing error during broaching. In some specific embodiments, such as Figure 3 and Figure 4 As shown, the first horizontal direction is the front-to-back direction, and the material receiving and feeding slide 200 performs loading and unloading operations at the front end of the base 100. The base 100 also includes a rear baffle 121 vertically arranged on the rear side of the bottom plate 120 and a top plate 122 horizontally arranged on the top of the two splash-proof vertical plates 130. The tool guide sleeve 140 is installed on the top plate 122. In addition, the clamping member 152 is partially mounted on the tool guide sleeve 140.

[0052] Reference Figure 1 and Figure 6 As shown, it can be understood that the fixture assembly also includes a cooling assembly 600, and the cooling assembly 600 includes a diverter seat 610, a water inlet pipe 620 and a plurality of nozzles 630. The diverter seat 610 is installed on the receiving and feeding slide 200. The diverter seat 610 is hollow. The water inlet pipe 620 is connected to the diverter seat 610 for conveying cooling water to the inner cavity of the diverter seat 610. A plurality of nozzles 630 are installed on the diverter seat 610 for spraying the cooling water in the inner cavity of the diverter seat 610 to the workpiece 201 placed in the workpiece placement position, thereby cooling the workpiece 201. It can be understood that the number of workpiece placement positions provided on the receiving and feeding slide 200 is the same as the number of groups of nozzles 630, and a group of nozzles 630 can be provided with multiple nozzles 630.

[0053] A broaching machine in one embodiment of the utility model comprises a clamp assembly in any of the above embodiments, and has all the beneficial effects of the above embodiments.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A clamp assembly for a broaching machine, characterized in that: include: Base (100); A material receiving and feeding slide (200), the upper end of which is provided with a workpiece placement position, the material receiving and feeding slide (200) is slidably arranged on the base (100) along a first horizontal direction, and is used to drive the workpiece (201) to approach or move away from the processing position; A plurality of position-limiting support seats (300) are arranged on the base (100), and the position-limiting support seats (300) are configured such that when the material receiving and conveying slide (200) moves to the processing position, the position-limiting support seats (300) are located directly below the material receiving and conveying slide (200) and a gap in the vertical direction is reserved with the material receiving and conveying slide (200); Two supporting mechanisms (400) are arranged on opposite sides of the material receiving and conveying slide (200) along the second horizontal direction, and the supporting mechanisms (400) are configured as follows: when the material receiving and conveying slide (200) moves to the processing position, the two supporting mechanisms (400) respectively support the two end surfaces of the material receiving and conveying slide (200) along the second horizontal direction along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.

2. The clamp assembly according to claim 1, characterized in that: The supporting mechanism (400) is provided with a first driving member (410) and a supporting portion (420), wherein the first driving member (410) has an output shaft that can be extended and retracted along the second horizontal direction, and the supporting portion (420) is connected to the output shaft and is used to support the material receiving and feeding slide (200).

3. The clamp assembly according to claim 2, characterized in that: The end surface of the supporting portion (420) for contacting the material receiving and feeding slide (200) is provided with an anti-slip pattern.

4. The clamp assembly according to claim 2, characterized in that: The first driving member (410) is configured as a hydraulic cylinder.

5. The clamp assembly according to claim 1, characterized in that: The base (100) is provided with a linear rail group, the linear rail group comprising at least two linear rails (110) extending along the first horizontal direction, and the material receiving and feeding slide (200) is slidably mounted on the base (100) via the linear rail group.

6. The clamp assembly according to claim 1, characterized in that: The gap has a value range of 0.005 mm to 0.01 mm.

7. The clamp assembly according to claim 1, characterized in that: The base (100) includes a bottom plate (120) and two splash-proof vertical plates (130) arranged on opposite sides of the bottom plate (120) along the second horizontal direction. When the material receiving and conveying slide (200) moves to the processing position, the material receiving and conveying slide (200) is located between the two splash-proof vertical plates (130).

8. The clamp assembly according to claim 1, characterized in that: The base (100) is provided with a tool guide sleeve (140) on the upper side of the material receiving and feeding slide (200), and the tool guide sleeve (140) has a guide hole (141) extending vertically and matching with the broach (500) for allowing the broach (500) to pass through so as to guide the broach (500).

9. The clamp assembly according to claim 1, characterized in that: It also includes a cooling component (600), which includes a diverter seat (610), a water inlet pipe (620) and a plurality of nozzles (630). The diverter seat (610) is installed on the material receiving and feeding slide (200), and the diverter seat (610) is hollow. The water inlet pipe (620) is connected to the diverter seat (610) to transport cooling water to the inner cavity of the diverter seat (610). The plurality of nozzles (630) are installed on the diverter seat (610) to spray the cooling water in the inner cavity of the diverter seat (610) to the workpiece (201) placed in the workpiece placement position.

10. A broaching machine, characterized in that: The clamp assembly comprises the clamp assembly according to any one of claims 1 to 9.

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